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# esbuild
This is the macOS ARM 64-bit binary for esbuild, a JavaScript bundler and minifier. See https://github.com/evanw/esbuild for details.

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{
"name": "@esbuild/darwin-arm64",
"version": "0.27.2",
"description": "The macOS ARM 64-bit binary for esbuild, a JavaScript bundler.",
"repository": {
"type": "git",
"url": "git+https://github.com/evanw/esbuild.git"
},
"license": "MIT",
"preferUnplugged": true,
"engines": {
"node": ">=18"
},
"os": [
"darwin"
],
"cpu": [
"arm64"
]
}

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MIT License
Copyright (c) 2018 Toru Nagashima
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# @eslint-community/eslint-utils
[![npm version](https://img.shields.io/npm/v/@eslint-community/eslint-utils.svg)](https://www.npmjs.com/package/@eslint-community/eslint-utils)
[![Downloads/month](https://img.shields.io/npm/dm/@eslint-community/eslint-utils.svg)](http://www.npmtrends.com/@eslint-community/eslint-utils)
[![Build Status](https://github.com/eslint-community/eslint-utils/workflows/CI/badge.svg)](https://github.com/eslint-community/eslint-utils/actions)
[![Coverage Status](https://codecov.io/gh/eslint-community/eslint-utils/branch/main/graph/badge.svg)](https://codecov.io/gh/eslint-community/eslint-utils)
## 🏁 Goal
This package provides utility functions and classes for make ESLint custom rules.
For examples:
- [`getStaticValue`](https://eslint-community.github.io/eslint-utils/api/ast-utils.html#getstaticvalue) evaluates static value on AST.
- [`ReferenceTracker`](https://eslint-community.github.io/eslint-utils/api/scope-utils.html#referencetracker-class) checks the members of modules/globals as handling assignments and destructuring.
## 📖 Usage
See [documentation](https://eslint-community.github.io/eslint-utils).
## 📰 Changelog
See [releases](https://github.com/eslint-community/eslint-utils/releases).
## ❤️ Contributing
Welcome contributing!
Please use GitHub's Issues/PRs.
### Development Tools
- `npm run test-coverage` runs tests and measures coverage.
- `npm run clean` removes the coverage result of `npm run test-coverage` command.
- `npm run coverage` shows the coverage result of the last `npm run test-coverage` command.
- `npm run lint` runs ESLint.
- `npm run watch` runs tests on each file change.

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import * as eslint from 'eslint';
import { Rule, AST } from 'eslint';
import * as estree from 'estree';
declare const READ: unique symbol;
declare const CALL: unique symbol;
declare const CONSTRUCT: unique symbol;
declare const ESM: unique symbol;
declare class ReferenceTracker {
constructor(globalScope: Scope$2, options?: {
mode?: "legacy" | "strict" | undefined;
globalObjectNames?: string[] | undefined;
} | undefined);
private variableStack;
private globalScope;
private mode;
private globalObjectNames;
iterateGlobalReferences<T>(traceMap: TraceMap$2<T>): IterableIterator<TrackedReferences$2<T>>;
iterateCjsReferences<T_1>(traceMap: TraceMap$2<T_1>): IterableIterator<TrackedReferences$2<T_1>>;
iterateEsmReferences<T_2>(traceMap: TraceMap$2<T_2>): IterableIterator<TrackedReferences$2<T_2>>;
iteratePropertyReferences<T_3>(node: Expression, traceMap: TraceMap$2<T_3>): IterableIterator<TrackedReferences$2<T_3>>;
private _iterateVariableReferences;
private _iteratePropertyReferences;
private _iterateLhsReferences;
private _iterateImportReferences;
}
declare namespace ReferenceTracker {
export { READ };
export { CALL };
export { CONSTRUCT };
export { ESM };
}
type Scope$2 = eslint.Scope.Scope;
type Expression = estree.Expression;
type TraceMap$2<T> = TraceMap$1<T>;
type TrackedReferences$2<T> = TrackedReferences$1<T>;
type StaticValue$2 = StaticValueProvided$1 | StaticValueOptional$1;
type StaticValueProvided$1 = {
optional?: undefined;
value: unknown;
};
type StaticValueOptional$1 = {
optional?: true;
value: undefined;
};
type ReferenceTrackerOptions$1 = {
globalObjectNames?: string[];
mode?: "legacy" | "strict";
};
type TraceMap$1<T = unknown> = {
[i: string]: TraceMapObject<T>;
};
type TraceMapObject<T> = {
[i: string]: TraceMapObject<T>;
[CALL]?: T;
[CONSTRUCT]?: T;
[READ]?: T;
[ESM]?: boolean;
};
type TrackedReferences$1<T> = {
info: T;
node: Rule.Node;
path: string[];
type: typeof CALL | typeof CONSTRUCT | typeof READ;
};
type HasSideEffectOptions$1 = {
considerGetters?: boolean;
considerImplicitTypeConversion?: boolean;
};
type PunctuatorToken<Value extends string> = AST.Token & {
type: "Punctuator";
value: Value;
};
type ArrowToken$1 = PunctuatorToken<"=>">;
type CommaToken$1 = PunctuatorToken<",">;
type SemicolonToken$1 = PunctuatorToken<";">;
type ColonToken$1 = PunctuatorToken<":">;
type OpeningParenToken$1 = PunctuatorToken<"(">;
type ClosingParenToken$1 = PunctuatorToken<")">;
type OpeningBracketToken$1 = PunctuatorToken<"[">;
type ClosingBracketToken$1 = PunctuatorToken<"]">;
type OpeningBraceToken$1 = PunctuatorToken<"{">;
type ClosingBraceToken$1 = PunctuatorToken<"}">;
declare function findVariable(initialScope: Scope$1, nameOrNode: string | Identifier): Variable | null;
type Scope$1 = eslint.Scope.Scope;
type Variable = eslint.Scope.Variable;
type Identifier = estree.Identifier;
declare function getFunctionHeadLocation(node: FunctionNode$1, sourceCode: SourceCode$2): SourceLocation | null;
type SourceCode$2 = eslint.SourceCode;
type FunctionNode$1 = estree.Function;
type SourceLocation = estree.SourceLocation;
declare function getFunctionNameWithKind(node: FunctionNode, sourceCode?: eslint.SourceCode | undefined): string;
type FunctionNode = estree.Function;
declare function getInnermostScope(initialScope: Scope, node: Node$4): Scope;
type Scope = eslint.Scope.Scope;
type Node$4 = estree.Node;
declare function getPropertyName(node: MemberExpression | MethodDefinition | Property | PropertyDefinition, initialScope?: eslint.Scope.Scope | undefined): string | null | undefined;
type MemberExpression = estree.MemberExpression;
type MethodDefinition = estree.MethodDefinition;
type Property = estree.Property;
type PropertyDefinition = estree.PropertyDefinition;
declare function getStaticValue(node: Node$3, initialScope?: eslint.Scope.Scope | null | undefined): StaticValue$1 | null;
type StaticValue$1 = StaticValue$2;
type Node$3 = estree.Node;
declare function getStringIfConstant(node: Node$2, initialScope?: eslint.Scope.Scope | null | undefined): string | null;
type Node$2 = estree.Node;
declare function hasSideEffect(node: Node$1, sourceCode: SourceCode$1, options?: HasSideEffectOptions$1 | undefined): boolean;
type Node$1 = estree.Node;
type SourceCode$1 = eslint.SourceCode;
declare function isArrowToken(token: CommentOrToken): token is ArrowToken$1;
declare function isCommaToken(token: CommentOrToken): token is CommaToken$1;
declare function isSemicolonToken(token: CommentOrToken): token is SemicolonToken$1;
declare function isColonToken(token: CommentOrToken): token is ColonToken$1;
declare function isOpeningParenToken(token: CommentOrToken): token is OpeningParenToken$1;
declare function isClosingParenToken(token: CommentOrToken): token is ClosingParenToken$1;
declare function isOpeningBracketToken(token: CommentOrToken): token is OpeningBracketToken$1;
declare function isClosingBracketToken(token: CommentOrToken): token is ClosingBracketToken$1;
declare function isOpeningBraceToken(token: CommentOrToken): token is OpeningBraceToken$1;
declare function isClosingBraceToken(token: CommentOrToken): token is ClosingBraceToken$1;
declare function isCommentToken(token: CommentOrToken): token is estree.Comment;
declare function isNotArrowToken(arg0: CommentOrToken): boolean;
declare function isNotCommaToken(arg0: CommentOrToken): boolean;
declare function isNotSemicolonToken(arg0: CommentOrToken): boolean;
declare function isNotColonToken(arg0: CommentOrToken): boolean;
declare function isNotOpeningParenToken(arg0: CommentOrToken): boolean;
declare function isNotClosingParenToken(arg0: CommentOrToken): boolean;
declare function isNotOpeningBracketToken(arg0: CommentOrToken): boolean;
declare function isNotClosingBracketToken(arg0: CommentOrToken): boolean;
declare function isNotOpeningBraceToken(arg0: CommentOrToken): boolean;
declare function isNotClosingBraceToken(arg0: CommentOrToken): boolean;
declare function isNotCommentToken(arg0: CommentOrToken): boolean;
type Token = eslint.AST.Token;
type Comment = estree.Comment;
type CommentOrToken = Comment | Token;
declare function isParenthesized(timesOrNode: Node | number, nodeOrSourceCode: Node | SourceCode, optionalSourceCode?: eslint.SourceCode | undefined): boolean;
type Node = estree.Node;
type SourceCode = eslint.SourceCode;
declare class PatternMatcher {
constructor(pattern: RegExp, options?: {
escaped?: boolean | undefined;
} | undefined);
execAll(str: string): IterableIterator<RegExpExecArray>;
test(str: string): boolean;
[Symbol.replace](str: string, replacer: string | ((...strs: string[]) => string)): string;
}
declare namespace _default {
export { CALL };
export { CONSTRUCT };
export { ESM };
export { findVariable };
export { getFunctionHeadLocation };
export { getFunctionNameWithKind };
export { getInnermostScope };
export { getPropertyName };
export { getStaticValue };
export { getStringIfConstant };
export { hasSideEffect };
export { isArrowToken };
export { isClosingBraceToken };
export { isClosingBracketToken };
export { isClosingParenToken };
export { isColonToken };
export { isCommaToken };
export { isCommentToken };
export { isNotArrowToken };
export { isNotClosingBraceToken };
export { isNotClosingBracketToken };
export { isNotClosingParenToken };
export { isNotColonToken };
export { isNotCommaToken };
export { isNotCommentToken };
export { isNotOpeningBraceToken };
export { isNotOpeningBracketToken };
export { isNotOpeningParenToken };
export { isNotSemicolonToken };
export { isOpeningBraceToken };
export { isOpeningBracketToken };
export { isOpeningParenToken };
export { isParenthesized };
export { isSemicolonToken };
export { PatternMatcher };
export { READ };
export { ReferenceTracker };
}
type StaticValue = StaticValue$2;
type StaticValueOptional = StaticValueOptional$1;
type StaticValueProvided = StaticValueProvided$1;
type ReferenceTrackerOptions = ReferenceTrackerOptions$1;
type TraceMap<T> = TraceMap$1<T>;
type TrackedReferences<T> = TrackedReferences$1<T>;
type HasSideEffectOptions = HasSideEffectOptions$1;
type ArrowToken = ArrowToken$1;
type CommaToken = CommaToken$1;
type SemicolonToken = SemicolonToken$1;
type ColonToken = ColonToken$1;
type OpeningParenToken = OpeningParenToken$1;
type ClosingParenToken = ClosingParenToken$1;
type OpeningBracketToken = OpeningBracketToken$1;
type ClosingBracketToken = ClosingBracketToken$1;
type OpeningBraceToken = OpeningBraceToken$1;
type ClosingBraceToken = ClosingBraceToken$1;
export { ArrowToken, CALL, CONSTRUCT, ClosingBraceToken, ClosingBracketToken, ClosingParenToken, ColonToken, CommaToken, ESM, HasSideEffectOptions, OpeningBraceToken, OpeningBracketToken, OpeningParenToken, PatternMatcher, READ, ReferenceTracker, ReferenceTrackerOptions, SemicolonToken, StaticValue, StaticValueOptional, StaticValueProvided, TraceMap, TrackedReferences, _default as default, findVariable, getFunctionHeadLocation, getFunctionNameWithKind, getInnermostScope, getPropertyName, getStaticValue, getStringIfConstant, hasSideEffect, isArrowToken, isClosingBraceToken, isClosingBracketToken, isClosingParenToken, isColonToken, isCommaToken, isCommentToken, isNotArrowToken, isNotClosingBraceToken, isNotClosingBracketToken, isNotClosingParenToken, isNotColonToken, isNotCommaToken, isNotCommentToken, isNotOpeningBraceToken, isNotOpeningBracketToken, isNotOpeningParenToken, isNotSemicolonToken, isOpeningBraceToken, isOpeningBracketToken, isOpeningParenToken, isParenthesized, isSemicolonToken };

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import * as eslint from 'eslint';
import { Rule, AST } from 'eslint';
import * as estree from 'estree';
declare const READ: unique symbol;
declare const CALL: unique symbol;
declare const CONSTRUCT: unique symbol;
declare const ESM: unique symbol;
declare class ReferenceTracker {
constructor(globalScope: Scope$2, options?: {
mode?: "legacy" | "strict" | undefined;
globalObjectNames?: string[] | undefined;
} | undefined);
private variableStack;
private globalScope;
private mode;
private globalObjectNames;
iterateGlobalReferences<T>(traceMap: TraceMap$2<T>): IterableIterator<TrackedReferences$2<T>>;
iterateCjsReferences<T_1>(traceMap: TraceMap$2<T_1>): IterableIterator<TrackedReferences$2<T_1>>;
iterateEsmReferences<T_2>(traceMap: TraceMap$2<T_2>): IterableIterator<TrackedReferences$2<T_2>>;
iteratePropertyReferences<T_3>(node: Expression, traceMap: TraceMap$2<T_3>): IterableIterator<TrackedReferences$2<T_3>>;
private _iterateVariableReferences;
private _iteratePropertyReferences;
private _iterateLhsReferences;
private _iterateImportReferences;
}
declare namespace ReferenceTracker {
export { READ };
export { CALL };
export { CONSTRUCT };
export { ESM };
}
type Scope$2 = eslint.Scope.Scope;
type Expression = estree.Expression;
type TraceMap$2<T> = TraceMap$1<T>;
type TrackedReferences$2<T> = TrackedReferences$1<T>;
type StaticValue$2 = StaticValueProvided$1 | StaticValueOptional$1;
type StaticValueProvided$1 = {
optional?: undefined;
value: unknown;
};
type StaticValueOptional$1 = {
optional?: true;
value: undefined;
};
type ReferenceTrackerOptions$1 = {
globalObjectNames?: string[];
mode?: "legacy" | "strict";
};
type TraceMap$1<T = unknown> = {
[i: string]: TraceMapObject<T>;
};
type TraceMapObject<T> = {
[i: string]: TraceMapObject<T>;
[CALL]?: T;
[CONSTRUCT]?: T;
[READ]?: T;
[ESM]?: boolean;
};
type TrackedReferences$1<T> = {
info: T;
node: Rule.Node;
path: string[];
type: typeof CALL | typeof CONSTRUCT | typeof READ;
};
type HasSideEffectOptions$1 = {
considerGetters?: boolean;
considerImplicitTypeConversion?: boolean;
};
type PunctuatorToken<Value extends string> = AST.Token & {
type: "Punctuator";
value: Value;
};
type ArrowToken$1 = PunctuatorToken<"=>">;
type CommaToken$1 = PunctuatorToken<",">;
type SemicolonToken$1 = PunctuatorToken<";">;
type ColonToken$1 = PunctuatorToken<":">;
type OpeningParenToken$1 = PunctuatorToken<"(">;
type ClosingParenToken$1 = PunctuatorToken<")">;
type OpeningBracketToken$1 = PunctuatorToken<"[">;
type ClosingBracketToken$1 = PunctuatorToken<"]">;
type OpeningBraceToken$1 = PunctuatorToken<"{">;
type ClosingBraceToken$1 = PunctuatorToken<"}">;
declare function findVariable(initialScope: Scope$1, nameOrNode: string | Identifier): Variable | null;
type Scope$1 = eslint.Scope.Scope;
type Variable = eslint.Scope.Variable;
type Identifier = estree.Identifier;
declare function getFunctionHeadLocation(node: FunctionNode$1, sourceCode: SourceCode$2): SourceLocation | null;
type SourceCode$2 = eslint.SourceCode;
type FunctionNode$1 = estree.Function;
type SourceLocation = estree.SourceLocation;
declare function getFunctionNameWithKind(node: FunctionNode, sourceCode?: eslint.SourceCode | undefined): string;
type FunctionNode = estree.Function;
declare function getInnermostScope(initialScope: Scope, node: Node$4): Scope;
type Scope = eslint.Scope.Scope;
type Node$4 = estree.Node;
declare function getPropertyName(node: MemberExpression | MethodDefinition | Property | PropertyDefinition, initialScope?: eslint.Scope.Scope | undefined): string | null | undefined;
type MemberExpression = estree.MemberExpression;
type MethodDefinition = estree.MethodDefinition;
type Property = estree.Property;
type PropertyDefinition = estree.PropertyDefinition;
declare function getStaticValue(node: Node$3, initialScope?: eslint.Scope.Scope | null | undefined): StaticValue$1 | null;
type StaticValue$1 = StaticValue$2;
type Node$3 = estree.Node;
declare function getStringIfConstant(node: Node$2, initialScope?: eslint.Scope.Scope | null | undefined): string | null;
type Node$2 = estree.Node;
declare function hasSideEffect(node: Node$1, sourceCode: SourceCode$1, options?: HasSideEffectOptions$1 | undefined): boolean;
type Node$1 = estree.Node;
type SourceCode$1 = eslint.SourceCode;
declare function isArrowToken(token: CommentOrToken): token is ArrowToken$1;
declare function isCommaToken(token: CommentOrToken): token is CommaToken$1;
declare function isSemicolonToken(token: CommentOrToken): token is SemicolonToken$1;
declare function isColonToken(token: CommentOrToken): token is ColonToken$1;
declare function isOpeningParenToken(token: CommentOrToken): token is OpeningParenToken$1;
declare function isClosingParenToken(token: CommentOrToken): token is ClosingParenToken$1;
declare function isOpeningBracketToken(token: CommentOrToken): token is OpeningBracketToken$1;
declare function isClosingBracketToken(token: CommentOrToken): token is ClosingBracketToken$1;
declare function isOpeningBraceToken(token: CommentOrToken): token is OpeningBraceToken$1;
declare function isClosingBraceToken(token: CommentOrToken): token is ClosingBraceToken$1;
declare function isCommentToken(token: CommentOrToken): token is estree.Comment;
declare function isNotArrowToken(arg0: CommentOrToken): boolean;
declare function isNotCommaToken(arg0: CommentOrToken): boolean;
declare function isNotSemicolonToken(arg0: CommentOrToken): boolean;
declare function isNotColonToken(arg0: CommentOrToken): boolean;
declare function isNotOpeningParenToken(arg0: CommentOrToken): boolean;
declare function isNotClosingParenToken(arg0: CommentOrToken): boolean;
declare function isNotOpeningBracketToken(arg0: CommentOrToken): boolean;
declare function isNotClosingBracketToken(arg0: CommentOrToken): boolean;
declare function isNotOpeningBraceToken(arg0: CommentOrToken): boolean;
declare function isNotClosingBraceToken(arg0: CommentOrToken): boolean;
declare function isNotCommentToken(arg0: CommentOrToken): boolean;
type Token = eslint.AST.Token;
type Comment = estree.Comment;
type CommentOrToken = Comment | Token;
declare function isParenthesized(timesOrNode: Node | number, nodeOrSourceCode: Node | SourceCode, optionalSourceCode?: eslint.SourceCode | undefined): boolean;
type Node = estree.Node;
type SourceCode = eslint.SourceCode;
declare class PatternMatcher {
constructor(pattern: RegExp, options?: {
escaped?: boolean | undefined;
} | undefined);
execAll(str: string): IterableIterator<RegExpExecArray>;
test(str: string): boolean;
[Symbol.replace](str: string, replacer: string | ((...strs: string[]) => string)): string;
}
declare namespace _default {
export { CALL };
export { CONSTRUCT };
export { ESM };
export { findVariable };
export { getFunctionHeadLocation };
export { getFunctionNameWithKind };
export { getInnermostScope };
export { getPropertyName };
export { getStaticValue };
export { getStringIfConstant };
export { hasSideEffect };
export { isArrowToken };
export { isClosingBraceToken };
export { isClosingBracketToken };
export { isClosingParenToken };
export { isColonToken };
export { isCommaToken };
export { isCommentToken };
export { isNotArrowToken };
export { isNotClosingBraceToken };
export { isNotClosingBracketToken };
export { isNotClosingParenToken };
export { isNotColonToken };
export { isNotCommaToken };
export { isNotCommentToken };
export { isNotOpeningBraceToken };
export { isNotOpeningBracketToken };
export { isNotOpeningParenToken };
export { isNotSemicolonToken };
export { isOpeningBraceToken };
export { isOpeningBracketToken };
export { isOpeningParenToken };
export { isParenthesized };
export { isSemicolonToken };
export { PatternMatcher };
export { READ };
export { ReferenceTracker };
}
type StaticValue = StaticValue$2;
type StaticValueOptional = StaticValueOptional$1;
type StaticValueProvided = StaticValueProvided$1;
type ReferenceTrackerOptions = ReferenceTrackerOptions$1;
type TraceMap<T> = TraceMap$1<T>;
type TrackedReferences<T> = TrackedReferences$1<T>;
type HasSideEffectOptions = HasSideEffectOptions$1;
type ArrowToken = ArrowToken$1;
type CommaToken = CommaToken$1;
type SemicolonToken = SemicolonToken$1;
type ColonToken = ColonToken$1;
type OpeningParenToken = OpeningParenToken$1;
type ClosingParenToken = ClosingParenToken$1;
type OpeningBracketToken = OpeningBracketToken$1;
type ClosingBracketToken = ClosingBracketToken$1;
type OpeningBraceToken = OpeningBraceToken$1;
type ClosingBraceToken = ClosingBraceToken$1;
export { ArrowToken, CALL, CONSTRUCT, ClosingBraceToken, ClosingBracketToken, ClosingParenToken, ColonToken, CommaToken, ESM, HasSideEffectOptions, OpeningBraceToken, OpeningBracketToken, OpeningParenToken, PatternMatcher, READ, ReferenceTracker, ReferenceTrackerOptions, SemicolonToken, StaticValue, StaticValueOptional, StaticValueProvided, TraceMap, TrackedReferences, _default as default, findVariable, getFunctionHeadLocation, getFunctionNameWithKind, getInnermostScope, getPropertyName, getStaticValue, getStringIfConstant, hasSideEffect, isArrowToken, isClosingBraceToken, isClosingBracketToken, isClosingParenToken, isColonToken, isCommaToken, isCommentToken, isNotArrowToken, isNotClosingBraceToken, isNotClosingBracketToken, isNotClosingParenToken, isNotColonToken, isNotCommaToken, isNotCommentToken, isNotOpeningBraceToken, isNotOpeningBracketToken, isNotOpeningParenToken, isNotSemicolonToken, isOpeningBraceToken, isOpeningBracketToken, isOpeningParenToken, isParenthesized, isSemicolonToken };

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{
"name": "@eslint-community/eslint-utils",
"version": "4.9.1",
"description": "Utilities for ESLint plugins.",
"keywords": [
"eslint"
],
"homepage": "https://github.com/eslint-community/eslint-utils#readme",
"bugs": {
"url": "https://github.com/eslint-community/eslint-utils/issues"
},
"repository": {
"type": "git",
"url": "https://github.com/eslint-community/eslint-utils"
},
"license": "MIT",
"author": "Toru Nagashima",
"sideEffects": false,
"exports": {
".": {
"import": "./index.mjs",
"require": "./index.js"
},
"./package.json": "./package.json"
},
"main": "index",
"module": "index.mjs",
"files": [
"index.*"
],
"scripts": {
"prebuild": "npm run -s clean",
"build": "npm run build:dts && npm run build:rollup",
"build:dts": "tsc -p tsconfig.build.json",
"build:rollup": "rollup -c",
"clean": "rimraf .nyc_output coverage index.* dist",
"coverage": "opener ./coverage/lcov-report/index.html",
"docs:build": "vitepress build docs",
"docs:watch": "vitepress dev docs",
"format": "npm run -s format:prettier -- --write",
"format:prettier": "prettier .",
"format:check": "npm run -s format:prettier -- --check",
"lint:eslint": "eslint .",
"lint:format": "npm run -s format:check",
"lint:installed-check": "installed-check -v -i installed-check -i npm-run-all2 -i knip -i rollup-plugin-dts",
"lint:knip": "knip",
"lint": "run-p lint:*",
"test-coverage": "c8 mocha --reporter dot \"test/*.mjs\"",
"test": "mocha --reporter dot \"test/*.mjs\"",
"preversion": "npm run test-coverage && npm run -s build",
"postversion": "git push && git push --tags",
"prewatch": "npm run -s clean",
"watch": "warun \"{src,test}/**/*.mjs\" -- npm run -s test:mocha"
},
"dependencies": {
"eslint-visitor-keys": "^3.4.3"
},
"devDependencies": {
"@eslint-community/eslint-plugin-mysticatea": "^15.6.1",
"@types/eslint": "^9.6.1",
"@types/estree": "^1.0.7",
"@typescript-eslint/parser": "^5.62.0",
"@typescript-eslint/types": "^5.62.0",
"c8": "^8.0.1",
"dot-prop": "^7.2.0",
"eslint": "^8.57.1",
"installed-check": "^8.0.1",
"knip": "^5.33.3",
"mocha": "^9.2.2",
"npm-run-all2": "^6.2.3",
"opener": "^1.5.2",
"prettier": "2.8.8",
"rimraf": "^3.0.2",
"rollup": "^2.79.2",
"rollup-plugin-dts": "^4.2.3",
"rollup-plugin-sourcemaps": "^0.6.3",
"semver": "^7.6.3",
"typescript": "^4.9.5",
"vitepress": "^1.4.1",
"warun": "^1.0.0"
},
"peerDependencies": {
"eslint": "^6.0.0 || ^7.0.0 || >=8.0.0"
},
"engines": {
"node": "^12.22.0 || ^14.17.0 || >=16.0.0"
},
"funding": "https://opencollective.com/eslint"
}

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MIT License
Copyright (c) 2018 Toru Nagashima
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# @eslint-community/regexpp
[![npm version](https://img.shields.io/npm/v/@eslint-community/regexpp.svg)](https://www.npmjs.com/package/@eslint-community/regexpp)
[![Downloads/month](https://img.shields.io/npm/dm/@eslint-community/regexpp.svg)](http://www.npmtrends.com/@eslint-community/regexpp)
[![Build Status](https://github.com/eslint-community/regexpp/workflows/CI/badge.svg)](https://github.com/eslint-community/regexpp/actions)
[![codecov](https://codecov.io/gh/eslint-community/regexpp/branch/main/graph/badge.svg)](https://codecov.io/gh/eslint-community/regexpp)
A regular expression parser for ECMAScript.
## 💿 Installation
```bash
$ npm install @eslint-community/regexpp
```
- require Node@^12.0.0 || ^14.0.0 || >=16.0.0.
## 📖 Usage
```ts
import {
AST,
RegExpParser,
RegExpValidator,
RegExpVisitor,
parseRegExpLiteral,
validateRegExpLiteral,
visitRegExpAST
} from "@eslint-community/regexpp"
```
### parseRegExpLiteral(source, options?)
Parse a given regular expression literal then make AST object.
This is equivalent to `new RegExpParser(options).parseLiteral(source)`.
- **Parameters:**
- `source` (`string | RegExp`) The source code to parse.
- `options?` ([`RegExpParser.Options`]) The options to parse.
- **Return:**
- The AST of the regular expression.
### validateRegExpLiteral(source, options?)
Validate a given regular expression literal.
This is equivalent to `new RegExpValidator(options).validateLiteral(source)`.
- **Parameters:**
- `source` (`string`) The source code to validate.
- `options?` ([`RegExpValidator.Options`]) The options to validate.
### visitRegExpAST(ast, handlers)
Visit each node of a given AST.
This is equivalent to `new RegExpVisitor(handlers).visit(ast)`.
- **Parameters:**
- `ast` ([`AST.Node`]) The AST to visit.
- `handlers` ([`RegExpVisitor.Handlers`]) The callbacks.
### RegExpParser
#### new RegExpParser(options?)
- **Parameters:**
- `options?` ([`RegExpParser.Options`]) The options to parse.
#### parser.parseLiteral(source, start?, end?)
Parse a regular expression literal.
- **Parameters:**
- `source` (`string`) The source code to parse. E.g. `"/abc/g"`.
- `start?` (`number`) The start index in the source code. Default is `0`.
- `end?` (`number`) The end index in the source code. Default is `source.length`.
- **Return:**
- The AST of the regular expression.
#### parser.parsePattern(source, start?, end?, flags?)
Parse a regular expression pattern.
- **Parameters:**
- `source` (`string`) The source code to parse. E.g. `"abc"`.
- `start?` (`number`) The start index in the source code. Default is `0`.
- `end?` (`number`) The end index in the source code. Default is `source.length`.
- `flags?` (`{ unicode?: boolean, unicodeSets?: boolean }`) The flags to enable Unicode mode, and Unicode Set mode.
- **Return:**
- The AST of the regular expression pattern.
#### parser.parseFlags(source, start?, end?)
Parse a regular expression flags.
- **Parameters:**
- `source` (`string`) The source code to parse. E.g. `"gim"`.
- `start?` (`number`) The start index in the source code. Default is `0`.
- `end?` (`number`) The end index in the source code. Default is `source.length`.
- **Return:**
- The AST of the regular expression flags.
### RegExpValidator
#### new RegExpValidator(options)
- **Parameters:**
- `options` ([`RegExpValidator.Options`]) The options to validate.
#### validator.validateLiteral(source, start, end)
Validate a regular expression literal.
- **Parameters:**
- `source` (`string`) The source code to validate.
- `start?` (`number`) The start index in the source code. Default is `0`.
- `end?` (`number`) The end index in the source code. Default is `source.length`.
#### validator.validatePattern(source, start, end, flags)
Validate a regular expression pattern.
- **Parameters:**
- `source` (`string`) The source code to validate.
- `start?` (`number`) The start index in the source code. Default is `0`.
- `end?` (`number`) The end index in the source code. Default is `source.length`.
- `flags?` (`{ unicode?: boolean, unicodeSets?: boolean }`) The flags to enable Unicode mode, and Unicode Set mode.
#### validator.validateFlags(source, start, end)
Validate a regular expression flags.
- **Parameters:**
- `source` (`string`) The source code to validate.
- `start?` (`number`) The start index in the source code. Default is `0`.
- `end?` (`number`) The end index in the source code. Default is `source.length`.
### RegExpVisitor
#### new RegExpVisitor(handlers)
- **Parameters:**
- `handlers` ([`RegExpVisitor.Handlers`]) The callbacks.
#### visitor.visit(ast)
Validate a regular expression literal.
- **Parameters:**
- `ast` ([`AST.Node`]) The AST to visit.
## 📰 Changelog
- [GitHub Releases](https://github.com/eslint-community/regexpp/releases)
## 🍻 Contributing
Welcome contributing!
Please use GitHub's Issues/PRs.
### Development Tools
- `npm test` runs tests and measures coverage.
- `npm run build` compiles TypeScript source code to `index.js`, `index.js.map`, and `index.d.ts`.
- `npm run clean` removes the temporary files which are created by `npm test` and `npm run build`.
- `npm run lint` runs ESLint.
- `npm run update:test` updates test fixtures.
- `npm run update:ids` updates `src/unicode/ids.ts`.
- `npm run watch` runs tests with `--watch` option.
[`AST.Node`]: src/ast.ts#L4
[`RegExpParser.Options`]: src/parser.ts#L743
[`RegExpValidator.Options`]: src/validator.ts#L220
[`RegExpVisitor.Handlers`]: src/visitor.ts#L291

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{
"name": "@eslint-community/regexpp",
"version": "4.12.2",
"description": "Regular expression parser for ECMAScript.",
"keywords": [
"regexp",
"regular",
"expression",
"parser",
"validator",
"ast",
"abstract",
"syntax",
"tree",
"ecmascript",
"es2015",
"es2016",
"es2017",
"es2018",
"es2019",
"es2020",
"es2021",
"annexB"
],
"homepage": "https://github.com/eslint-community/regexpp#readme",
"bugs": {
"url": "https://github.com/eslint-community/regexpp/issues"
},
"repository": {
"type": "git",
"url": "https://github.com/eslint-community/regexpp"
},
"license": "MIT",
"author": "Toru Nagashima",
"exports": {
".": {
"types": "./index.d.ts",
"import": "./index.mjs",
"default": "./index.js"
},
"./package.json": "./package.json"
},
"main": "index",
"files": [
"index.*"
],
"scripts": {
"prebuild": "npm run -s clean",
"build": "run-s build:*",
"build:tsc": "tsc --module es2015",
"build:rollup": "rollup -c",
"build:dts": "npm run -s build:tsc -- --removeComments false && dts-bundle --name @eslint-community/regexpp --main .temp/index.d.ts --out ../index.d.ts && prettier --write index.d.ts",
"clean": "rimraf .temp index.*",
"lint": "eslint . --ext .ts",
"test": "nyc _mocha \"test/*.ts\" --reporter dot --timeout 10000",
"debug": "mocha --require ts-node/register/transpile-only \"test/*.ts\" --reporter dot --timeout 10000",
"update:test": "ts-node scripts/update-fixtures.ts",
"update:unicode": "run-s update:unicode:*",
"update:unicode:ids": "ts-node scripts/update-unicode-ids.ts",
"update:unicode:props": "ts-node scripts/update-unicode-properties.ts",
"update:test262:extract": "ts-node -T scripts/extract-test262.ts",
"preversion": "npm test && npm run -s build",
"postversion": "git push && git push --tags",
"prewatch": "npm run -s clean",
"watch": "_mocha \"test/*.ts\" --require ts-node/register --reporter dot --timeout 10000 --watch-extensions ts --watch --growl"
},
"dependencies": {},
"devDependencies": {
"@eslint-community/eslint-plugin-mysticatea": "^15.5.1",
"@rollup/plugin-node-resolve": "^14.1.0",
"@types/eslint": "^8.44.3",
"@types/jsdom": "^16.2.15",
"@types/mocha": "^9.1.1",
"@types/node": "^12.20.55",
"dts-bundle": "^0.7.3",
"eslint": "^8.50.0",
"js-tokens": "^8.0.2",
"jsdom": "^19.0.0",
"mocha": "^9.2.2",
"npm-run-all2": "^6.2.2",
"nyc": "^14.1.1",
"rimraf": "^3.0.2",
"rollup": "^2.79.1",
"rollup-plugin-sourcemaps": "^0.6.3",
"ts-node": "^10.9.1",
"typescript": "~5.0.2"
},
"engines": {
"node": "^12.0.0 || ^14.0.0 || >=16.0.0"
}
}

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# Config Array
## Description
A config array is a way of managing configurations that are based on glob pattern matching of filenames. Each config array contains the information needed to determine the correct configuration for any file based on the filename.
**Note:** This is a generic package that can be used outside of ESLint. It contains no ESLint-specific functionality.
## Installation
For Node.js and compatible runtimes:
```shell
npm install @eslint/config-array
# or
yarn add @eslint/config-array
# or
pnpm install @eslint/config-array
# or
bun add @eslint/config-array
```
For Deno:
```shell
deno add @eslint/config-array
```
## Background
The basic idea is that all configuration, including overrides, can be represented by a single array where each item in the array is a config object. Config objects appearing later in the array override config objects appearing earlier in the array. You can calculate a config for a given file by traversing all config objects in the array to find the ones that match the filename. Matching is done by specifying glob patterns in `files` and `ignores` properties on each config object. Here's an example:
```js
export default [
// match all JSON files
{
name: "JSON Handler",
files: ["**/*.json"],
handler: jsonHandler,
},
// match only package.json
{
name: "package.json Handler",
files: ["package.json"],
handler: packageJsonHandler,
},
];
```
In this example, there are two config objects: the first matches all JSON files in all directories and the second matches just `package.json` in the base path directory (all the globs are evaluated as relative to a base path that can be specified). When you retrieve a configuration for `foo.json`, only the first config object matches so `handler` is equal to `jsonHandler`; when you retrieve a configuration for `package.json`, `handler` is equal to `packageJsonHandler` (because both config objects match, the second one wins).
## Usage
First, import the `ConfigArray` constructor:
```js
import { ConfigArray } from "@eslint/config-array";
// or using CommonJS
const { ConfigArray } = require("@eslint/config-array");
```
When you create a new instance of `ConfigArray`, you must pass in two arguments: an array of configs and an options object. The array of configs is most likely read in from a configuration file, so here's a typical example:
```js
const configFilename = path.resolve(process.cwd(), "my.config.js");
const { default: rawConfigs } = await import(configFilename);
const configs = new ConfigArray(rawConfigs, {
// the path to match filenames from
basePath: process.cwd(),
// additional items in each config
schema: mySchema,
});
```
This example reads in an object or array from `my.config.js` and passes it into the `ConfigArray` constructor as the first argument. The second argument is an object specifying the `basePath` (the directory in which `my.config.js` is found) and a `schema` to define the additional properties of a config object beyond `files`, `ignores`, `basePath`, and `name`.
### Specifying a Schema
The `schema` option is required for you to use additional properties in config objects. The schema is an object that follows the format of an [`ObjectSchema`](https://npmjs.com/package/@eslint/object-schema). The schema specifies both validation and merge rules that the `ConfigArray` instance needs to combine configs when there are multiple matches. Here's an example:
```js
const configFilename = path.resolve(process.cwd(), "my.config.js");
const { default: rawConfigs } = await import(configFilename);
const mySchema = {
// define the handler key in configs
handler: {
required: true,
merge(a, b) {
if (!b) return a;
if (!a) return b;
},
validate(value) {
if (typeof value !== "function") {
throw new TypeError("Function expected.");
}
}
}
};
const configs = new ConfigArray(rawConfigs, {
// the path to match filenames from
basePath: process.cwd(),
// additional item schemas in each config
schema: mySchema,
// additional config types supported (default: [])
extraConfigTypes: ["array", "function"];
});
```
### Config Arrays
Config arrays can be multidimensional, so it's possible for a config array to contain another config array when `extraConfigTypes` contains `"array"`, such as:
```js
export default [
// JS config
{
files: ["**/*.js"],
handler: jsHandler,
},
// JSON configs
[
// match all JSON files
{
name: "JSON Handler",
files: ["**/*.json"],
handler: jsonHandler,
},
// match only package.json
{
name: "package.json Handler",
files: ["package.json"],
handler: packageJsonHandler,
},
],
// filename must match function
{
files: [filePath => filePath.endsWith(".md")],
handler: markdownHandler,
},
// filename must match all patterns in subarray
{
files: [["*.test.*", "*.js"]],
handler: jsTestHandler,
},
// filename must not match patterns beginning with !
{
name: "Non-JS files",
files: ["!*.js"],
settings: {
js: false,
},
},
// specific settings for files inside `src` directory
{
name: "Source files",
basePath: "src",
files: ["**/*"],
settings: {
source: true,
},
},
];
```
In this example, the array contains both config objects and a config array. When a config array is normalized (see details below), it is flattened so only config objects remain. However, the order of evaluation remains the same.
If the `files` array contains a function, then that function is called with the path of the file as it was passed in. The function is expected to return `true` if there is a match and `false` if not. (The `ignores` array can also contain functions.)
If the `files` array contains an item that is an array of strings and functions, then all patterns must match in order for the config to match. In the preceding examples, both `*.test.*` and `*.js` must match in order for the config object to be used.
If a pattern in the files array begins with `!` then it excludes that pattern. In the preceding example, any filename that doesn't end with `.js` will automatically get a `settings.js` property set to `false`.
You can also specify an `ignores` key that will force files matching those patterns to not be included. If the `ignores` key is in a config object without any other keys, then those ignores will always be applied; otherwise those ignores act as exclusions. Here's an example:
```js
export default [
// Always ignored
{
ignores: ["**/.git/**", "**/node_modules/**"]
},
// .eslintrc.js file is ignored only when .js file matches
{
files: ["**/*.js"],
ignores: [".eslintrc.js"]
handler: jsHandler
}
];
```
You can use negated patterns in `ignores` to exclude a file that was already ignored, such as:
```js
export default [
// Ignore all JSON files except tsconfig.json
{
files: ["**/*"],
ignores: ["**/*.json", "!tsconfig.json"],
},
];
```
### Config Functions
Config arrays can also include config functions when `extraConfigTypes` contains `"function"`. A config function accepts a single parameter, `context` (defined by you), and must return either a config object or a config array (it cannot return another function). Config functions allow end users to execute code in the creation of appropriate config objects. Here's an example:
```js
export default [
// JS config
{
files: ["**/*.js"],
handler: jsHandler,
},
// JSON configs
function (context) {
return [
// match all JSON files
{
name: context.name + " JSON Handler",
files: ["**/*.json"],
handler: jsonHandler,
},
// match only package.json
{
name: context.name + " package.json Handler",
files: ["package.json"],
handler: packageJsonHandler,
},
];
},
];
```
When a config array is normalized, each function is executed and replaced in the config array with the return value.
**Note:** Config functions can also be async.
### Normalizing Config Arrays
Once a config array has been created and loaded with all of the raw config data, it must be normalized before it can be used. The normalization process goes through and flattens the config array as well as executing all config functions to get their final values.
To normalize a config array, call the `normalize()` method and pass in a context object:
```js
await configs.normalize({
name: "MyApp",
});
```
The `normalize()` method returns a promise, so be sure to use the `await` operator. The config array instance is normalized in-place, so you don't need to create a new variable.
If you want to disallow async config functions, you can call `normalizeSync()` instead. This method is completely synchronous and does not require using the `await` operator as it does not return a promise:
```js
await configs.normalizeSync({
name: "MyApp",
});
```
**Important:** Once a `ConfigArray` is normalized, it cannot be changed further. You can, however, create a new `ConfigArray` and pass in the normalized instance to create an unnormalized copy.
### Getting Config for a File
To get the config for a file, use the `getConfig()` method on a normalized config array and pass in the filename to get a config for:
```js
// pass in filename
const fileConfig = configs.getConfig(
path.resolve(process.cwd(), "package.json"),
);
```
The config array always returns an object, even if there are no configs matching the given filename. You can then inspect the returned config object to determine how to proceed.
A few things to keep in mind:
- If a filename is not an absolute path, it will be resolved relative to the base path directory.
- The returned config object never has `files`, `ignores`, `basePath`, or `name` properties; the only properties on the object will be the other configuration options specified.
- The config array caches configs, so subsequent calls to `getConfig()` with the same filename will return in a fast lookup rather than another calculation.
- A config will only be generated if the filename matches an entry in a `files` key. A config will not be generated without matching a `files` key (configs without a `files` key are only applied when another config with a `files` key is applied; configs without `files` are never applied on their own). Any config with a `files` key entry that is `*` or ends with `/**` or `/*` will only be applied if another entry in the same `files` key matches or another config matches.
## Determining Ignored Paths
You can determine if a file is ignored by using the `isFileIgnored()` method and passing in the path of any file, as in this example:
```js
const ignored = configs.isFileIgnored("/foo/bar/baz.txt");
```
A file is considered ignored if any of the following is true:
- **It's parent directory is ignored.** For example, if `foo` is in `ignores`, then `foo/a.js` is considered ignored.
- **It has an ancestor directory that is ignored.** For example, if `foo` is in `ignores`, then `foo/baz/a.js` is considered ignored.
- **It matches an ignored file pattern.** For example, if `**/a.js` is in `ignores`, then `foo/a.js` and `foo/baz/a.js` are considered ignored.
- **If it matches an entry in `files` and also in `ignores`.** For example, if `**/*.js` is in `files` and `**/a.js` is in `ignores`, then `foo/a.js` and `foo/baz/a.js` are considered ignored.
- **The file is outside the `basePath`.** If the `basePath` is `/usr/me`, then `/foo/a.js` is considered ignored.
For directories, use the `isDirectoryIgnored()` method and pass in the path of any directory, as in this example:
```js
const ignored = configs.isDirectoryIgnored("/foo/bar/");
```
A directory is considered ignored if any of the following is true:
- **It's parent directory is ignored.** For example, if `foo` is in `ignores`, then `foo/baz` is considered ignored.
- **It has an ancestor directory that is ignored.** For example, if `foo` is in `ignores`, then `foo/bar/baz/a.js` is considered ignored.
- **It matches and ignored file pattern.** For example, if `**/a.js` is in `ignores`, then `foo/a.js` and `foo/baz/a.js` are considered ignored.
- **If it matches an entry in `files` and also in `ignores`.** For example, if `**/*.js` is in `files` and `**/a.js` is in `ignores`, then `foo/a.js` and `foo/baz/a.js` are considered ignored.
- **The file is outside the `basePath`.** If the `basePath` is `/usr/me`, then `/foo/a.js` is considered ignored.
**Important:** A pattern such as `foo/**` means that `foo` and `foo/` are _not_ ignored whereas `foo/bar` is ignored. If you want to ignore `foo` and all of its subdirectories, use the pattern `foo` or `foo/` in `ignores`.
## Caching Mechanisms
Each `ConfigArray` aggressively caches configuration objects to avoid unnecessary work. This caching occurs in two ways:
1. **File-based Caching.** For each filename that is passed into a method, the resulting config is cached against that filename so you're always guaranteed to get the same object returned from `getConfig()` whenever you pass the same filename in.
2. **Index-based Caching.** Whenever a config is calculated, the config elements that were used to create the config are also cached. So if a given filename matches elements 1, 5, and 7, the resulting config is cached with a key of `1,5,7`. That way, if another file is passed that matches the same config elements, the result is already known and doesn't have to be recalculated. That means two files that match all the same elements will return the same config from `getConfig()`.
## Acknowledgements
The design of this project was influenced by feedback on the ESLint RFC, and incorporates ideas from:
- Teddy Katz (@not-an-aardvark)
- Toru Nagashima (@mysticatea)
- Kai Cataldo (@kaicataldo)
## License
Apache 2.0
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export { ObjectSchema } from "@eslint/object-schema";
export type PropertyDefinition = $eslintobjectschema.PropertyDefinition;
export type ObjectDefinition = $eslintobjectschema.ObjectDefinition;
export type ConfigObject = $typests.ConfigObject;
export type IMinimatchStatic = minimatch.IMinimatchStatic;
export type IMinimatch = minimatch.IMinimatch;
export type ObjectSchemaInstance = ObjectSchema;
/**
* Represents an array of config objects and provides method for working with
* those config objects.
*/
export class ConfigArray extends Array<any> {
/**
* Creates a new instance of ConfigArray.
* @param {Iterable|Function|Object} configs An iterable yielding config
* objects, or a config function, or a config object.
* @param {Object} options The options for the ConfigArray.
* @param {string} [options.basePath="/"] The absolute path of the config file directory.
* Defaults to `"/"`.
* @param {boolean} [options.normalized=false] Flag indicating if the
* configs have already been normalized.
* @param {Object} [options.schema] The additional schema
* definitions to use for the ConfigArray schema.
* @param {Array<string>} [options.extraConfigTypes] List of config types supported.
* @throws {TypeError} When the `basePath` is not a non-empty string,
*/
constructor(configs: Iterable<any> | Function | any, { basePath, normalized, schema: customSchema, extraConfigTypes, }?: {
basePath?: string;
normalized?: boolean;
schema?: any;
extraConfigTypes?: Array<string>;
});
/**
* The path of the config file that this array was loaded from.
* This is used to calculate filename matches.
* @property basePath
* @type {string}
*/
basePath: string;
/**
* The supported config types.
* @type {Array<string>}
*/
extraConfigTypes: Array<string>;
/**
* Returns the `files` globs from every config object in the array.
* This can be used to determine which files will be matched by a
* config array or to use as a glob pattern when no patterns are provided
* for a command line interface.
* @returns {Array<string|Function>} An array of matchers.
*/
get files(): Array<string | Function>;
/**
* Returns ignore matchers that should always be ignored regardless of
* the matching `files` fields in any configs. This is necessary to mimic
* the behavior of things like .gitignore and .eslintignore, allowing a
* globbing operation to be faster.
* @returns {Object[]} An array of config objects representing global ignores.
*/
get ignores(): any[];
/**
* Indicates if the config array has been normalized.
* @returns {boolean} True if the config array is normalized, false if not.
*/
isNormalized(): boolean;
/**
* Normalizes a config array by flattening embedded arrays and executing
* config functions.
* @param {Object} [context] The context object for config functions.
* @returns {Promise<ConfigArray>} The current ConfigArray instance.
*/
normalize(context?: any): Promise<ConfigArray>;
/**
* Normalizes a config array by flattening embedded arrays and executing
* config functions.
* @param {Object} [context] The context object for config functions.
* @returns {ConfigArray} The current ConfigArray instance.
*/
normalizeSync(context?: any): ConfigArray;
/**
* Returns the config object for a given file path and a status that can be used to determine why a file has no config.
* @param {string} filePath The path of a file to get a config for.
* @returns {{ config?: Object, status: "ignored"|"external"|"unconfigured"|"matched" }}
* An object with an optional property `config` and property `status`.
* `config` is the config object for the specified file as returned by {@linkcode ConfigArray.getConfig},
* `status` a is one of the constants returned by {@linkcode ConfigArray.getConfigStatus}.
*/
getConfigWithStatus(filePath: string): {
config?: any;
status: "ignored" | "external" | "unconfigured" | "matched";
};
/**
* Returns the config object for a given file path.
* @param {string} filePath The path of a file to get a config for.
* @returns {Object|undefined} The config object for this file or `undefined`.
*/
getConfig(filePath: string): any | undefined;
/**
* Determines whether a file has a config or why it doesn't.
* @param {string} filePath The path of the file to check.
* @returns {"ignored"|"external"|"unconfigured"|"matched"} One of the following values:
* * `"ignored"`: the file is ignored
* * `"external"`: the file is outside the base path
* * `"unconfigured"`: the file is not matched by any config
* * `"matched"`: the file has a matching config
*/
getConfigStatus(filePath: string): "ignored" | "external" | "unconfigured" | "matched";
/**
* Determines if the given filepath is ignored based on the configs.
* @param {string} filePath The path of a file to check.
* @returns {boolean} True if the path is ignored, false if not.
* @deprecated Use `isFileIgnored` instead.
*/
isIgnored(filePath: string): boolean;
/**
* Determines if the given filepath is ignored based on the configs.
* @param {string} filePath The path of a file to check.
* @returns {boolean} True if the path is ignored, false if not.
*/
isFileIgnored(filePath: string): boolean;
/**
* Determines if the given directory is ignored based on the configs.
* This checks only default `ignores` that don't have `files` in the
* same config. A pattern such as `/foo` be considered to ignore the directory
* while a pattern such as `/foo/**` is not considered to ignore the
* directory because it is matching files.
* @param {string} directoryPath The path of a directory to check.
* @returns {boolean} True if the directory is ignored, false if not. Will
* return true for any directory that is not inside of `basePath`.
* @throws {Error} When the `ConfigArray` is not normalized.
*/
isDirectoryIgnored(directoryPath: string): boolean;
#private;
}
export namespace ConfigArraySymbol {
let isNormalized: symbol;
let configCache: symbol;
let schema: symbol;
let finalizeConfig: symbol;
let preprocessConfig: symbol;
}
import type * as $eslintobjectschema from "@eslint/object-schema";
import type * as $typests from "./types.cts";
import minimatch from 'minimatch';
import { ObjectSchema } from '@eslint/object-schema';

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/**
* @fileoverview Types for the config-array package.
* @author Nicholas C. Zakas
*/
export interface ConfigObject {
/**
* The base path for files and ignores.
*/
basePath?: string;
/**
* The files to include.
*/
files?: string[];
/**
* The files to exclude.
*/
ignores?: string[];
/**
* The name of the config object.
*/
name?: string;
// may also have any number of other properties
[key: string]: unknown;
}

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export { ObjectSchema } from "@eslint/object-schema";
export type PropertyDefinition = $eslintobjectschema.PropertyDefinition;
export type ObjectDefinition = $eslintobjectschema.ObjectDefinition;
export type ConfigObject = $typests.ConfigObject;
export type IMinimatchStatic = minimatch.IMinimatchStatic;
export type IMinimatch = minimatch.IMinimatch;
export type ObjectSchemaInstance = ObjectSchema;
/**
* Represents an array of config objects and provides method for working with
* those config objects.
*/
export class ConfigArray extends Array<any> {
/**
* Creates a new instance of ConfigArray.
* @param {Iterable|Function|Object} configs An iterable yielding config
* objects, or a config function, or a config object.
* @param {Object} options The options for the ConfigArray.
* @param {string} [options.basePath="/"] The absolute path of the config file directory.
* Defaults to `"/"`.
* @param {boolean} [options.normalized=false] Flag indicating if the
* configs have already been normalized.
* @param {Object} [options.schema] The additional schema
* definitions to use for the ConfigArray schema.
* @param {Array<string>} [options.extraConfigTypes] List of config types supported.
* @throws {TypeError} When the `basePath` is not a non-empty string,
*/
constructor(configs: Iterable<any> | Function | any, { basePath, normalized, schema: customSchema, extraConfigTypes, }?: {
basePath?: string;
normalized?: boolean;
schema?: any;
extraConfigTypes?: Array<string>;
});
/**
* The path of the config file that this array was loaded from.
* This is used to calculate filename matches.
* @property basePath
* @type {string}
*/
basePath: string;
/**
* The supported config types.
* @type {Array<string>}
*/
extraConfigTypes: Array<string>;
/**
* Returns the `files` globs from every config object in the array.
* This can be used to determine which files will be matched by a
* config array or to use as a glob pattern when no patterns are provided
* for a command line interface.
* @returns {Array<string|Function>} An array of matchers.
*/
get files(): Array<string | Function>;
/**
* Returns ignore matchers that should always be ignored regardless of
* the matching `files` fields in any configs. This is necessary to mimic
* the behavior of things like .gitignore and .eslintignore, allowing a
* globbing operation to be faster.
* @returns {Object[]} An array of config objects representing global ignores.
*/
get ignores(): any[];
/**
* Indicates if the config array has been normalized.
* @returns {boolean} True if the config array is normalized, false if not.
*/
isNormalized(): boolean;
/**
* Normalizes a config array by flattening embedded arrays and executing
* config functions.
* @param {Object} [context] The context object for config functions.
* @returns {Promise<ConfigArray>} The current ConfigArray instance.
*/
normalize(context?: any): Promise<ConfigArray>;
/**
* Normalizes a config array by flattening embedded arrays and executing
* config functions.
* @param {Object} [context] The context object for config functions.
* @returns {ConfigArray} The current ConfigArray instance.
*/
normalizeSync(context?: any): ConfigArray;
/**
* Returns the config object for a given file path and a status that can be used to determine why a file has no config.
* @param {string} filePath The path of a file to get a config for.
* @returns {{ config?: Object, status: "ignored"|"external"|"unconfigured"|"matched" }}
* An object with an optional property `config` and property `status`.
* `config` is the config object for the specified file as returned by {@linkcode ConfigArray.getConfig},
* `status` a is one of the constants returned by {@linkcode ConfigArray.getConfigStatus}.
*/
getConfigWithStatus(filePath: string): {
config?: any;
status: "ignored" | "external" | "unconfigured" | "matched";
};
/**
* Returns the config object for a given file path.
* @param {string} filePath The path of a file to get a config for.
* @returns {Object|undefined} The config object for this file or `undefined`.
*/
getConfig(filePath: string): any | undefined;
/**
* Determines whether a file has a config or why it doesn't.
* @param {string} filePath The path of the file to check.
* @returns {"ignored"|"external"|"unconfigured"|"matched"} One of the following values:
* * `"ignored"`: the file is ignored
* * `"external"`: the file is outside the base path
* * `"unconfigured"`: the file is not matched by any config
* * `"matched"`: the file has a matching config
*/
getConfigStatus(filePath: string): "ignored" | "external" | "unconfigured" | "matched";
/**
* Determines if the given filepath is ignored based on the configs.
* @param {string} filePath The path of a file to check.
* @returns {boolean} True if the path is ignored, false if not.
* @deprecated Use `isFileIgnored` instead.
*/
isIgnored(filePath: string): boolean;
/**
* Determines if the given filepath is ignored based on the configs.
* @param {string} filePath The path of a file to check.
* @returns {boolean} True if the path is ignored, false if not.
*/
isFileIgnored(filePath: string): boolean;
/**
* Determines if the given directory is ignored based on the configs.
* This checks only default `ignores` that don't have `files` in the
* same config. A pattern such as `/foo` be considered to ignore the directory
* while a pattern such as `/foo/**` is not considered to ignore the
* directory because it is matching files.
* @param {string} directoryPath The path of a directory to check.
* @returns {boolean} True if the directory is ignored, false if not. Will
* return true for any directory that is not inside of `basePath`.
* @throws {Error} When the `ConfigArray` is not normalized.
*/
isDirectoryIgnored(directoryPath: string): boolean;
#private;
}
export namespace ConfigArraySymbol {
let isNormalized: symbol;
let configCache: symbol;
let schema: symbol;
let finalizeConfig: symbol;
let preprocessConfig: symbol;
}
import type * as $eslintobjectschema from "@eslint/object-schema";
import type * as $typests from "./types.ts";
import minimatch from 'minimatch';
import { ObjectSchema } from '@eslint/object-schema';

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/**
* @fileoverview Types for the config-array package.
* @author Nicholas C. Zakas
*/
export interface ConfigObject {
/**
* The base path for files and ignores.
*/
basePath?: string;
/**
* The files to include.
*/
files?: string[];
/**
* The files to exclude.
*/
ignores?: string[];
/**
* The name of the config object.
*/
name?: string;
[key: string]: unknown;
}

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/**
* @fileoverview Types for the config-array package.
* @author Nicholas C. Zakas
*/
export interface ConfigObject {
/**
* The base path for files and ignores.
*/
basePath?: string;
/**
* The files to include.
*/
files?: string[];
/**
* The files to exclude.
*/
ignores?: string[];
/**
* The name of the config object.
*/
name?: string;
// may also have any number of other properties
[key: string]: unknown;
}

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MIT License
Copyright (c) 2013 Julian Gruber <julian@juliangruber.com>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# brace-expansion
[Brace expansion](https://www.gnu.org/software/bash/manual/html_node/Brace-Expansion.html),
as known from sh/bash, in JavaScript.
[![build status](https://secure.travis-ci.org/juliangruber/brace-expansion.svg)](http://travis-ci.org/juliangruber/brace-expansion)
[![downloads](https://img.shields.io/npm/dm/brace-expansion.svg)](https://www.npmjs.org/package/brace-expansion)
[![Greenkeeper badge](https://badges.greenkeeper.io/juliangruber/brace-expansion.svg)](https://greenkeeper.io/)
[![testling badge](https://ci.testling.com/juliangruber/brace-expansion.png)](https://ci.testling.com/juliangruber/brace-expansion)
## Example
```js
var expand = require('brace-expansion');
expand('file-{a,b,c}.jpg')
// => ['file-a.jpg', 'file-b.jpg', 'file-c.jpg']
expand('-v{,,}')
// => ['-v', '-v', '-v']
expand('file{0..2}.jpg')
// => ['file0.jpg', 'file1.jpg', 'file2.jpg']
expand('file-{a..c}.jpg')
// => ['file-a.jpg', 'file-b.jpg', 'file-c.jpg']
expand('file{2..0}.jpg')
// => ['file2.jpg', 'file1.jpg', 'file0.jpg']
expand('file{0..4..2}.jpg')
// => ['file0.jpg', 'file2.jpg', 'file4.jpg']
expand('file-{a..e..2}.jpg')
// => ['file-a.jpg', 'file-c.jpg', 'file-e.jpg']
expand('file{00..10..5}.jpg')
// => ['file00.jpg', 'file05.jpg', 'file10.jpg']
expand('{{A..C},{a..c}}')
// => ['A', 'B', 'C', 'a', 'b', 'c']
expand('ppp{,config,oe{,conf}}')
// => ['ppp', 'pppconfig', 'pppoe', 'pppoeconf']
```
## API
```js
var expand = require('brace-expansion');
```
### var expanded = expand(str)
Return an array of all possible and valid expansions of `str`. If none are
found, `[str]` is returned.
Valid expansions are:
```js
/^(.*,)+(.+)?$/
// {a,b,...}
```
A comma separated list of options, like `{a,b}` or `{a,{b,c}}` or `{,a,}`.
```js
/^-?\d+\.\.-?\d+(\.\.-?\d+)?$/
// {x..y[..incr]}
```
A numeric sequence from `x` to `y` inclusive, with optional increment.
If `x` or `y` start with a leading `0`, all the numbers will be padded
to have equal length. Negative numbers and backwards iteration work too.
```js
/^-?\d+\.\.-?\d+(\.\.-?\d+)?$/
// {x..y[..incr]}
```
An alphabetic sequence from `x` to `y` inclusive, with optional increment.
`x` and `y` must be exactly one character, and if given, `incr` must be a
number.
For compatibility reasons, the string `${` is not eligible for brace expansion.
## Installation
With [npm](https://npmjs.org) do:
```bash
npm install brace-expansion
```
## Contributors
- [Julian Gruber](https://github.com/juliangruber)
- [Isaac Z. Schlueter](https://github.com/isaacs)
## Sponsors
This module is proudly supported by my [Sponsors](https://github.com/juliangruber/sponsors)!
Do you want to support modules like this to improve their quality, stability and weigh in on new features? Then please consider donating to my [Patreon](https://www.patreon.com/juliangruber). Not sure how much of my modules you're using? Try [feross/thanks](https://github.com/feross/thanks)!
## License
(MIT)
Copyright (c) 2013 Julian Gruber &lt;julian@juliangruber.com&gt;
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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var concatMap = require('concat-map');
var balanced = require('balanced-match');
module.exports = expandTop;
var escSlash = '\0SLASH'+Math.random()+'\0';
var escOpen = '\0OPEN'+Math.random()+'\0';
var escClose = '\0CLOSE'+Math.random()+'\0';
var escComma = '\0COMMA'+Math.random()+'\0';
var escPeriod = '\0PERIOD'+Math.random()+'\0';
function numeric(str) {
return parseInt(str, 10) == str
? parseInt(str, 10)
: str.charCodeAt(0);
}
function escapeBraces(str) {
return str.split('\\\\').join(escSlash)
.split('\\{').join(escOpen)
.split('\\}').join(escClose)
.split('\\,').join(escComma)
.split('\\.').join(escPeriod);
}
function unescapeBraces(str) {
return str.split(escSlash).join('\\')
.split(escOpen).join('{')
.split(escClose).join('}')
.split(escComma).join(',')
.split(escPeriod).join('.');
}
// Basically just str.split(","), but handling cases
// where we have nested braced sections, which should be
// treated as individual members, like {a,{b,c},d}
function parseCommaParts(str) {
if (!str)
return [''];
var parts = [];
var m = balanced('{', '}', str);
if (!m)
return str.split(',');
var pre = m.pre;
var body = m.body;
var post = m.post;
var p = pre.split(',');
p[p.length-1] += '{' + body + '}';
var postParts = parseCommaParts(post);
if (post.length) {
p[p.length-1] += postParts.shift();
p.push.apply(p, postParts);
}
parts.push.apply(parts, p);
return parts;
}
function expandTop(str) {
if (!str)
return [];
// I don't know why Bash 4.3 does this, but it does.
// Anything starting with {} will have the first two bytes preserved
// but *only* at the top level, so {},a}b will not expand to anything,
// but a{},b}c will be expanded to [a}c,abc].
// One could argue that this is a bug in Bash, but since the goal of
// this module is to match Bash's rules, we escape a leading {}
if (str.substr(0, 2) === '{}') {
str = '\\{\\}' + str.substr(2);
}
return expand(escapeBraces(str), true).map(unescapeBraces);
}
function identity(e) {
return e;
}
function embrace(str) {
return '{' + str + '}';
}
function isPadded(el) {
return /^-?0\d/.test(el);
}
function lte(i, y) {
return i <= y;
}
function gte(i, y) {
return i >= y;
}
function expand(str, isTop) {
var expansions = [];
var m = balanced('{', '}', str);
if (!m || /\$$/.test(m.pre)) return [str];
var isNumericSequence = /^-?\d+\.\.-?\d+(?:\.\.-?\d+)?$/.test(m.body);
var isAlphaSequence = /^[a-zA-Z]\.\.[a-zA-Z](?:\.\.-?\d+)?$/.test(m.body);
var isSequence = isNumericSequence || isAlphaSequence;
var isOptions = m.body.indexOf(',') >= 0;
if (!isSequence && !isOptions) {
// {a},b}
if (m.post.match(/,(?!,).*\}/)) {
str = m.pre + '{' + m.body + escClose + m.post;
return expand(str);
}
return [str];
}
var n;
if (isSequence) {
n = m.body.split(/\.\./);
} else {
n = parseCommaParts(m.body);
if (n.length === 1) {
// x{{a,b}}y ==> x{a}y x{b}y
n = expand(n[0], false).map(embrace);
if (n.length === 1) {
var post = m.post.length
? expand(m.post, false)
: [''];
return post.map(function(p) {
return m.pre + n[0] + p;
});
}
}
}
// at this point, n is the parts, and we know it's not a comma set
// with a single entry.
// no need to expand pre, since it is guaranteed to be free of brace-sets
var pre = m.pre;
var post = m.post.length
? expand(m.post, false)
: [''];
var N;
if (isSequence) {
var x = numeric(n[0]);
var y = numeric(n[1]);
var width = Math.max(n[0].length, n[1].length)
var incr = n.length == 3
? Math.abs(numeric(n[2]))
: 1;
var test = lte;
var reverse = y < x;
if (reverse) {
incr *= -1;
test = gte;
}
var pad = n.some(isPadded);
N = [];
for (var i = x; test(i, y); i += incr) {
var c;
if (isAlphaSequence) {
c = String.fromCharCode(i);
if (c === '\\')
c = '';
} else {
c = String(i);
if (pad) {
var need = width - c.length;
if (need > 0) {
var z = new Array(need + 1).join('0');
if (i < 0)
c = '-' + z + c.slice(1);
else
c = z + c;
}
}
}
N.push(c);
}
} else {
N = concatMap(n, function(el) { return expand(el, false) });
}
for (var j = 0; j < N.length; j++) {
for (var k = 0; k < post.length; k++) {
var expansion = pre + N[j] + post[k];
if (!isTop || isSequence || expansion)
expansions.push(expansion);
}
}
return expansions;
}

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{
"name": "brace-expansion",
"description": "Brace expansion as known from sh/bash",
"version": "1.1.12",
"repository": {
"type": "git",
"url": "git://github.com/juliangruber/brace-expansion.git"
},
"homepage": "https://github.com/juliangruber/brace-expansion",
"main": "index.js",
"scripts": {
"test": "tape test/*.js",
"gentest": "bash test/generate.sh",
"bench": "matcha test/perf/bench.js"
},
"dependencies": {
"balanced-match": "^1.0.0",
"concat-map": "0.0.1"
},
"devDependencies": {
"matcha": "^0.7.0",
"tape": "^4.6.0"
},
"keywords": [],
"author": {
"name": "Julian Gruber",
"email": "mail@juliangruber.com",
"url": "http://juliangruber.com"
},
"license": "MIT",
"testling": {
"files": "test/*.js",
"browsers": [
"ie/8..latest",
"firefox/20..latest",
"firefox/nightly",
"chrome/25..latest",
"chrome/canary",
"opera/12..latest",
"opera/next",
"safari/5.1..latest",
"ipad/6.0..latest",
"iphone/6.0..latest",
"android-browser/4.2..latest"
]
},
"publishConfig": {
"tag": "1.x"
}
}

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The ISC License
Copyright (c) Isaac Z. Schlueter and Contributors
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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# minimatch
A minimal matching utility.
[![Build Status](https://travis-ci.org/isaacs/minimatch.svg?branch=master)](http://travis-ci.org/isaacs/minimatch)
This is the matching library used internally by npm.
It works by converting glob expressions into JavaScript `RegExp`
objects.
## Usage
```javascript
var minimatch = require("minimatch")
minimatch("bar.foo", "*.foo") // true!
minimatch("bar.foo", "*.bar") // false!
minimatch("bar.foo", "*.+(bar|foo)", { debug: true }) // true, and noisy!
```
## Features
Supports these glob features:
* Brace Expansion
* Extended glob matching
* "Globstar" `**` matching
See:
* `man sh`
* `man bash`
* `man 3 fnmatch`
* `man 5 gitignore`
## Minimatch Class
Create a minimatch object by instantiating the `minimatch.Minimatch` class.
```javascript
var Minimatch = require("minimatch").Minimatch
var mm = new Minimatch(pattern, options)
```
### Properties
* `pattern` The original pattern the minimatch object represents.
* `options` The options supplied to the constructor.
* `set` A 2-dimensional array of regexp or string expressions.
Each row in the
array corresponds to a brace-expanded pattern. Each item in the row
corresponds to a single path-part. For example, the pattern
`{a,b/c}/d` would expand to a set of patterns like:
[ [ a, d ]
, [ b, c, d ] ]
If a portion of the pattern doesn't have any "magic" in it
(that is, it's something like `"foo"` rather than `fo*o?`), then it
will be left as a string rather than converted to a regular
expression.
* `regexp` Created by the `makeRe` method. A single regular expression
expressing the entire pattern. This is useful in cases where you wish
to use the pattern somewhat like `fnmatch(3)` with `FNM_PATH` enabled.
* `negate` True if the pattern is negated.
* `comment` True if the pattern is a comment.
* `empty` True if the pattern is `""`.
### Methods
* `makeRe` Generate the `regexp` member if necessary, and return it.
Will return `false` if the pattern is invalid.
* `match(fname)` Return true if the filename matches the pattern, or
false otherwise.
* `matchOne(fileArray, patternArray, partial)` Take a `/`-split
filename, and match it against a single row in the `regExpSet`. This
method is mainly for internal use, but is exposed so that it can be
used by a glob-walker that needs to avoid excessive filesystem calls.
All other methods are internal, and will be called as necessary.
### minimatch(path, pattern, options)
Main export. Tests a path against the pattern using the options.
```javascript
var isJS = minimatch(file, "*.js", { matchBase: true })
```
### minimatch.filter(pattern, options)
Returns a function that tests its
supplied argument, suitable for use with `Array.filter`. Example:
```javascript
var javascripts = fileList.filter(minimatch.filter("*.js", {matchBase: true}))
```
### minimatch.match(list, pattern, options)
Match against the list of
files, in the style of fnmatch or glob. If nothing is matched, and
options.nonull is set, then return a list containing the pattern itself.
```javascript
var javascripts = minimatch.match(fileList, "*.js", {matchBase: true}))
```
### minimatch.makeRe(pattern, options)
Make a regular expression object from the pattern.
## Options
All options are `false` by default.
### debug
Dump a ton of stuff to stderr.
### nobrace
Do not expand `{a,b}` and `{1..3}` brace sets.
### noglobstar
Disable `**` matching against multiple folder names.
### dot
Allow patterns to match filenames starting with a period, even if
the pattern does not explicitly have a period in that spot.
Note that by default, `a/**/b` will **not** match `a/.d/b`, unless `dot`
is set.
### noext
Disable "extglob" style patterns like `+(a|b)`.
### nocase
Perform a case-insensitive match.
### nonull
When a match is not found by `minimatch.match`, return a list containing
the pattern itself if this option is set. When not set, an empty list
is returned if there are no matches.
### matchBase
If set, then patterns without slashes will be matched
against the basename of the path if it contains slashes. For example,
`a?b` would match the path `/xyz/123/acb`, but not `/xyz/acb/123`.
### nocomment
Suppress the behavior of treating `#` at the start of a pattern as a
comment.
### nonegate
Suppress the behavior of treating a leading `!` character as negation.
### flipNegate
Returns from negate expressions the same as if they were not negated.
(Ie, true on a hit, false on a miss.)
### partial
Compare a partial path to a pattern. As long as the parts of the path that
are present are not contradicted by the pattern, it will be treated as a
match. This is useful in applications where you're walking through a
folder structure, and don't yet have the full path, but want to ensure that
you do not walk down paths that can never be a match.
For example,
```js
minimatch('/a/b', '/a/*/c/d', { partial: true }) // true, might be /a/b/c/d
minimatch('/a/b', '/**/d', { partial: true }) // true, might be /a/b/.../d
minimatch('/x/y/z', '/a/**/z', { partial: true }) // false, because x !== a
```
### allowWindowsEscape
Windows path separator `\` is by default converted to `/`, which
prohibits the usage of `\` as a escape character. This flag skips that
behavior and allows using the escape character.
## Comparisons to other fnmatch/glob implementations
While strict compliance with the existing standards is a worthwhile
goal, some discrepancies exist between minimatch and other
implementations, and are intentional.
If the pattern starts with a `!` character, then it is negated. Set the
`nonegate` flag to suppress this behavior, and treat leading `!`
characters normally. This is perhaps relevant if you wish to start the
pattern with a negative extglob pattern like `!(a|B)`. Multiple `!`
characters at the start of a pattern will negate the pattern multiple
times.
If a pattern starts with `#`, then it is treated as a comment, and
will not match anything. Use `\#` to match a literal `#` at the
start of a line, or set the `nocomment` flag to suppress this behavior.
The double-star character `**` is supported by default, unless the
`noglobstar` flag is set. This is supported in the manner of bsdglob
and bash 4.1, where `**` only has special significance if it is the only
thing in a path part. That is, `a/**/b` will match `a/x/y/b`, but
`a/**b` will not.
If an escaped pattern has no matches, and the `nonull` flag is set,
then minimatch.match returns the pattern as-provided, rather than
interpreting the character escapes. For example,
`minimatch.match([], "\\*a\\?")` will return `"\\*a\\?"` rather than
`"*a?"`. This is akin to setting the `nullglob` option in bash, except
that it does not resolve escaped pattern characters.
If brace expansion is not disabled, then it is performed before any
other interpretation of the glob pattern. Thus, a pattern like
`+(a|{b),c)}`, which would not be valid in bash or zsh, is expanded
**first** into the set of `+(a|b)` and `+(a|c)`, and those patterns are
checked for validity. Since those two are valid, matching proceeds.

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module.exports = minimatch
minimatch.Minimatch = Minimatch
var path = (function () { try { return require('path') } catch (e) {}}()) || {
sep: '/'
}
minimatch.sep = path.sep
var GLOBSTAR = minimatch.GLOBSTAR = Minimatch.GLOBSTAR = {}
var expand = require('brace-expansion')
var plTypes = {
'!': { open: '(?:(?!(?:', close: '))[^/]*?)'},
'?': { open: '(?:', close: ')?' },
'+': { open: '(?:', close: ')+' },
'*': { open: '(?:', close: ')*' },
'@': { open: '(?:', close: ')' }
}
// any single thing other than /
// don't need to escape / when using new RegExp()
var qmark = '[^/]'
// * => any number of characters
var star = qmark + '*?'
// ** when dots are allowed. Anything goes, except .. and .
// not (^ or / followed by one or two dots followed by $ or /),
// followed by anything, any number of times.
var twoStarDot = '(?:(?!(?:\\\/|^)(?:\\.{1,2})($|\\\/)).)*?'
// not a ^ or / followed by a dot,
// followed by anything, any number of times.
var twoStarNoDot = '(?:(?!(?:\\\/|^)\\.).)*?'
// characters that need to be escaped in RegExp.
var reSpecials = charSet('().*{}+?[]^$\\!')
// "abc" -> { a:true, b:true, c:true }
function charSet (s) {
return s.split('').reduce(function (set, c) {
set[c] = true
return set
}, {})
}
// normalizes slashes.
var slashSplit = /\/+/
minimatch.filter = filter
function filter (pattern, options) {
options = options || {}
return function (p, i, list) {
return minimatch(p, pattern, options)
}
}
function ext (a, b) {
b = b || {}
var t = {}
Object.keys(a).forEach(function (k) {
t[k] = a[k]
})
Object.keys(b).forEach(function (k) {
t[k] = b[k]
})
return t
}
minimatch.defaults = function (def) {
if (!def || typeof def !== 'object' || !Object.keys(def).length) {
return minimatch
}
var orig = minimatch
var m = function minimatch (p, pattern, options) {
return orig(p, pattern, ext(def, options))
}
m.Minimatch = function Minimatch (pattern, options) {
return new orig.Minimatch(pattern, ext(def, options))
}
m.Minimatch.defaults = function defaults (options) {
return orig.defaults(ext(def, options)).Minimatch
}
m.filter = function filter (pattern, options) {
return orig.filter(pattern, ext(def, options))
}
m.defaults = function defaults (options) {
return orig.defaults(ext(def, options))
}
m.makeRe = function makeRe (pattern, options) {
return orig.makeRe(pattern, ext(def, options))
}
m.braceExpand = function braceExpand (pattern, options) {
return orig.braceExpand(pattern, ext(def, options))
}
m.match = function (list, pattern, options) {
return orig.match(list, pattern, ext(def, options))
}
return m
}
Minimatch.defaults = function (def) {
return minimatch.defaults(def).Minimatch
}
function minimatch (p, pattern, options) {
assertValidPattern(pattern)
if (!options) options = {}
// shortcut: comments match nothing.
if (!options.nocomment && pattern.charAt(0) === '#') {
return false
}
return new Minimatch(pattern, options).match(p)
}
function Minimatch (pattern, options) {
if (!(this instanceof Minimatch)) {
return new Minimatch(pattern, options)
}
assertValidPattern(pattern)
if (!options) options = {}
pattern = pattern.trim()
// windows support: need to use /, not \
if (!options.allowWindowsEscape && path.sep !== '/') {
pattern = pattern.split(path.sep).join('/')
}
this.options = options
this.set = []
this.pattern = pattern
this.regexp = null
this.negate = false
this.comment = false
this.empty = false
this.partial = !!options.partial
// make the set of regexps etc.
this.make()
}
Minimatch.prototype.debug = function () {}
Minimatch.prototype.make = make
function make () {
var pattern = this.pattern
var options = this.options
// empty patterns and comments match nothing.
if (!options.nocomment && pattern.charAt(0) === '#') {
this.comment = true
return
}
if (!pattern) {
this.empty = true
return
}
// step 1: figure out negation, etc.
this.parseNegate()
// step 2: expand braces
var set = this.globSet = this.braceExpand()
if (options.debug) this.debug = function debug() { console.error.apply(console, arguments) }
this.debug(this.pattern, set)
// step 3: now we have a set, so turn each one into a series of path-portion
// matching patterns.
// These will be regexps, except in the case of "**", which is
// set to the GLOBSTAR object for globstar behavior,
// and will not contain any / characters
set = this.globParts = set.map(function (s) {
return s.split(slashSplit)
})
this.debug(this.pattern, set)
// glob --> regexps
set = set.map(function (s, si, set) {
return s.map(this.parse, this)
}, this)
this.debug(this.pattern, set)
// filter out everything that didn't compile properly.
set = set.filter(function (s) {
return s.indexOf(false) === -1
})
this.debug(this.pattern, set)
this.set = set
}
Minimatch.prototype.parseNegate = parseNegate
function parseNegate () {
var pattern = this.pattern
var negate = false
var options = this.options
var negateOffset = 0
if (options.nonegate) return
for (var i = 0, l = pattern.length
; i < l && pattern.charAt(i) === '!'
; i++) {
negate = !negate
negateOffset++
}
if (negateOffset) this.pattern = pattern.substr(negateOffset)
this.negate = negate
}
// Brace expansion:
// a{b,c}d -> abd acd
// a{b,}c -> abc ac
// a{0..3}d -> a0d a1d a2d a3d
// a{b,c{d,e}f}g -> abg acdfg acefg
// a{b,c}d{e,f}g -> abdeg acdeg abdeg abdfg
//
// Invalid sets are not expanded.
// a{2..}b -> a{2..}b
// a{b}c -> a{b}c
minimatch.braceExpand = function (pattern, options) {
return braceExpand(pattern, options)
}
Minimatch.prototype.braceExpand = braceExpand
function braceExpand (pattern, options) {
if (!options) {
if (this instanceof Minimatch) {
options = this.options
} else {
options = {}
}
}
pattern = typeof pattern === 'undefined'
? this.pattern : pattern
assertValidPattern(pattern)
// Thanks to Yeting Li <https://github.com/yetingli> for
// improving this regexp to avoid a ReDOS vulnerability.
if (options.nobrace || !/\{(?:(?!\{).)*\}/.test(pattern)) {
// shortcut. no need to expand.
return [pattern]
}
return expand(pattern)
}
var MAX_PATTERN_LENGTH = 1024 * 64
var assertValidPattern = function (pattern) {
if (typeof pattern !== 'string') {
throw new TypeError('invalid pattern')
}
if (pattern.length > MAX_PATTERN_LENGTH) {
throw new TypeError('pattern is too long')
}
}
// parse a component of the expanded set.
// At this point, no pattern may contain "/" in it
// so we're going to return a 2d array, where each entry is the full
// pattern, split on '/', and then turned into a regular expression.
// A regexp is made at the end which joins each array with an
// escaped /, and another full one which joins each regexp with |.
//
// Following the lead of Bash 4.1, note that "**" only has special meaning
// when it is the *only* thing in a path portion. Otherwise, any series
// of * is equivalent to a single *. Globstar behavior is enabled by
// default, and can be disabled by setting options.noglobstar.
Minimatch.prototype.parse = parse
var SUBPARSE = {}
function parse (pattern, isSub) {
assertValidPattern(pattern)
var options = this.options
// shortcuts
if (pattern === '**') {
if (!options.noglobstar)
return GLOBSTAR
else
pattern = '*'
}
if (pattern === '') return ''
var re = ''
var hasMagic = !!options.nocase
var escaping = false
// ? => one single character
var patternListStack = []
var negativeLists = []
var stateChar
var inClass = false
var reClassStart = -1
var classStart = -1
// . and .. never match anything that doesn't start with .,
// even when options.dot is set.
var patternStart = pattern.charAt(0) === '.' ? '' // anything
// not (start or / followed by . or .. followed by / or end)
: options.dot ? '(?!(?:^|\\\/)\\.{1,2}(?:$|\\\/))'
: '(?!\\.)'
var self = this
function clearStateChar () {
if (stateChar) {
// we had some state-tracking character
// that wasn't consumed by this pass.
switch (stateChar) {
case '*':
re += star
hasMagic = true
break
case '?':
re += qmark
hasMagic = true
break
default:
re += '\\' + stateChar
break
}
self.debug('clearStateChar %j %j', stateChar, re)
stateChar = false
}
}
for (var i = 0, len = pattern.length, c
; (i < len) && (c = pattern.charAt(i))
; i++) {
this.debug('%s\t%s %s %j', pattern, i, re, c)
// skip over any that are escaped.
if (escaping && reSpecials[c]) {
re += '\\' + c
escaping = false
continue
}
switch (c) {
/* istanbul ignore next */
case '/': {
// completely not allowed, even escaped.
// Should already be path-split by now.
return false
}
case '\\':
clearStateChar()
escaping = true
continue
// the various stateChar values
// for the "extglob" stuff.
case '?':
case '*':
case '+':
case '@':
case '!':
this.debug('%s\t%s %s %j <-- stateChar', pattern, i, re, c)
// all of those are literals inside a class, except that
// the glob [!a] means [^a] in regexp
if (inClass) {
this.debug(' in class')
if (c === '!' && i === classStart + 1) c = '^'
re += c
continue
}
// if we already have a stateChar, then it means
// that there was something like ** or +? in there.
// Handle the stateChar, then proceed with this one.
self.debug('call clearStateChar %j', stateChar)
clearStateChar()
stateChar = c
// if extglob is disabled, then +(asdf|foo) isn't a thing.
// just clear the statechar *now*, rather than even diving into
// the patternList stuff.
if (options.noext) clearStateChar()
continue
case '(':
if (inClass) {
re += '('
continue
}
if (!stateChar) {
re += '\\('
continue
}
patternListStack.push({
type: stateChar,
start: i - 1,
reStart: re.length,
open: plTypes[stateChar].open,
close: plTypes[stateChar].close
})
// negation is (?:(?!js)[^/]*)
re += stateChar === '!' ? '(?:(?!(?:' : '(?:'
this.debug('plType %j %j', stateChar, re)
stateChar = false
continue
case ')':
if (inClass || !patternListStack.length) {
re += '\\)'
continue
}
clearStateChar()
hasMagic = true
var pl = patternListStack.pop()
// negation is (?:(?!js)[^/]*)
// The others are (?:<pattern>)<type>
re += pl.close
if (pl.type === '!') {
negativeLists.push(pl)
}
pl.reEnd = re.length
continue
case '|':
if (inClass || !patternListStack.length || escaping) {
re += '\\|'
escaping = false
continue
}
clearStateChar()
re += '|'
continue
// these are mostly the same in regexp and glob
case '[':
// swallow any state-tracking char before the [
clearStateChar()
if (inClass) {
re += '\\' + c
continue
}
inClass = true
classStart = i
reClassStart = re.length
re += c
continue
case ']':
// a right bracket shall lose its special
// meaning and represent itself in
// a bracket expression if it occurs
// first in the list. -- POSIX.2 2.8.3.2
if (i === classStart + 1 || !inClass) {
re += '\\' + c
escaping = false
continue
}
// handle the case where we left a class open.
// "[z-a]" is valid, equivalent to "\[z-a\]"
// split where the last [ was, make sure we don't have
// an invalid re. if so, re-walk the contents of the
// would-be class to re-translate any characters that
// were passed through as-is
// TODO: It would probably be faster to determine this
// without a try/catch and a new RegExp, but it's tricky
// to do safely. For now, this is safe and works.
var cs = pattern.substring(classStart + 1, i)
try {
RegExp('[' + cs + ']')
} catch (er) {
// not a valid class!
var sp = this.parse(cs, SUBPARSE)
re = re.substr(0, reClassStart) + '\\[' + sp[0] + '\\]'
hasMagic = hasMagic || sp[1]
inClass = false
continue
}
// finish up the class.
hasMagic = true
inClass = false
re += c
continue
default:
// swallow any state char that wasn't consumed
clearStateChar()
if (escaping) {
// no need
escaping = false
} else if (reSpecials[c]
&& !(c === '^' && inClass)) {
re += '\\'
}
re += c
} // switch
} // for
// handle the case where we left a class open.
// "[abc" is valid, equivalent to "\[abc"
if (inClass) {
// split where the last [ was, and escape it
// this is a huge pita. We now have to re-walk
// the contents of the would-be class to re-translate
// any characters that were passed through as-is
cs = pattern.substr(classStart + 1)
sp = this.parse(cs, SUBPARSE)
re = re.substr(0, reClassStart) + '\\[' + sp[0]
hasMagic = hasMagic || sp[1]
}
// handle the case where we had a +( thing at the *end*
// of the pattern.
// each pattern list stack adds 3 chars, and we need to go through
// and escape any | chars that were passed through as-is for the regexp.
// Go through and escape them, taking care not to double-escape any
// | chars that were already escaped.
for (pl = patternListStack.pop(); pl; pl = patternListStack.pop()) {
var tail = re.slice(pl.reStart + pl.open.length)
this.debug('setting tail', re, pl)
// maybe some even number of \, then maybe 1 \, followed by a |
tail = tail.replace(/((?:\\{2}){0,64})(\\?)\|/g, function (_, $1, $2) {
if (!$2) {
// the | isn't already escaped, so escape it.
$2 = '\\'
}
// need to escape all those slashes *again*, without escaping the
// one that we need for escaping the | character. As it works out,
// escaping an even number of slashes can be done by simply repeating
// it exactly after itself. That's why this trick works.
//
// I am sorry that you have to see this.
return $1 + $1 + $2 + '|'
})
this.debug('tail=%j\n %s', tail, tail, pl, re)
var t = pl.type === '*' ? star
: pl.type === '?' ? qmark
: '\\' + pl.type
hasMagic = true
re = re.slice(0, pl.reStart) + t + '\\(' + tail
}
// handle trailing things that only matter at the very end.
clearStateChar()
if (escaping) {
// trailing \\
re += '\\\\'
}
// only need to apply the nodot start if the re starts with
// something that could conceivably capture a dot
var addPatternStart = false
switch (re.charAt(0)) {
case '[': case '.': case '(': addPatternStart = true
}
// Hack to work around lack of negative lookbehind in JS
// A pattern like: *.!(x).!(y|z) needs to ensure that a name
// like 'a.xyz.yz' doesn't match. So, the first negative
// lookahead, has to look ALL the way ahead, to the end of
// the pattern.
for (var n = negativeLists.length - 1; n > -1; n--) {
var nl = negativeLists[n]
var nlBefore = re.slice(0, nl.reStart)
var nlFirst = re.slice(nl.reStart, nl.reEnd - 8)
var nlLast = re.slice(nl.reEnd - 8, nl.reEnd)
var nlAfter = re.slice(nl.reEnd)
nlLast += nlAfter
// Handle nested stuff like *(*.js|!(*.json)), where open parens
// mean that we should *not* include the ) in the bit that is considered
// "after" the negated section.
var openParensBefore = nlBefore.split('(').length - 1
var cleanAfter = nlAfter
for (i = 0; i < openParensBefore; i++) {
cleanAfter = cleanAfter.replace(/\)[+*?]?/, '')
}
nlAfter = cleanAfter
var dollar = ''
if (nlAfter === '' && isSub !== SUBPARSE) {
dollar = '$'
}
var newRe = nlBefore + nlFirst + nlAfter + dollar + nlLast
re = newRe
}
// if the re is not "" at this point, then we need to make sure
// it doesn't match against an empty path part.
// Otherwise a/* will match a/, which it should not.
if (re !== '' && hasMagic) {
re = '(?=.)' + re
}
if (addPatternStart) {
re = patternStart + re
}
// parsing just a piece of a larger pattern.
if (isSub === SUBPARSE) {
return [re, hasMagic]
}
// skip the regexp for non-magical patterns
// unescape anything in it, though, so that it'll be
// an exact match against a file etc.
if (!hasMagic) {
return globUnescape(pattern)
}
var flags = options.nocase ? 'i' : ''
try {
var regExp = new RegExp('^' + re + '$', flags)
} catch (er) /* istanbul ignore next - should be impossible */ {
// If it was an invalid regular expression, then it can't match
// anything. This trick looks for a character after the end of
// the string, which is of course impossible, except in multi-line
// mode, but it's not a /m regex.
return new RegExp('$.')
}
regExp._glob = pattern
regExp._src = re
return regExp
}
minimatch.makeRe = function (pattern, options) {
return new Minimatch(pattern, options || {}).makeRe()
}
Minimatch.prototype.makeRe = makeRe
function makeRe () {
if (this.regexp || this.regexp === false) return this.regexp
// at this point, this.set is a 2d array of partial
// pattern strings, or "**".
//
// It's better to use .match(). This function shouldn't
// be used, really, but it's pretty convenient sometimes,
// when you just want to work with a regex.
var set = this.set
if (!set.length) {
this.regexp = false
return this.regexp
}
var options = this.options
var twoStar = options.noglobstar ? star
: options.dot ? twoStarDot
: twoStarNoDot
var flags = options.nocase ? 'i' : ''
var re = set.map(function (pattern) {
return pattern.map(function (p) {
return (p === GLOBSTAR) ? twoStar
: (typeof p === 'string') ? regExpEscape(p)
: p._src
}).join('\\\/')
}).join('|')
// must match entire pattern
// ending in a * or ** will make it less strict.
re = '^(?:' + re + ')$'
// can match anything, as long as it's not this.
if (this.negate) re = '^(?!' + re + ').*$'
try {
this.regexp = new RegExp(re, flags)
} catch (ex) /* istanbul ignore next - should be impossible */ {
this.regexp = false
}
return this.regexp
}
minimatch.match = function (list, pattern, options) {
options = options || {}
var mm = new Minimatch(pattern, options)
list = list.filter(function (f) {
return mm.match(f)
})
if (mm.options.nonull && !list.length) {
list.push(pattern)
}
return list
}
Minimatch.prototype.match = function match (f, partial) {
if (typeof partial === 'undefined') partial = this.partial
this.debug('match', f, this.pattern)
// short-circuit in the case of busted things.
// comments, etc.
if (this.comment) return false
if (this.empty) return f === ''
if (f === '/' && partial) return true
var options = this.options
// windows: need to use /, not \
if (path.sep !== '/') {
f = f.split(path.sep).join('/')
}
// treat the test path as a set of pathparts.
f = f.split(slashSplit)
this.debug(this.pattern, 'split', f)
// just ONE of the pattern sets in this.set needs to match
// in order for it to be valid. If negating, then just one
// match means that we have failed.
// Either way, return on the first hit.
var set = this.set
this.debug(this.pattern, 'set', set)
// Find the basename of the path by looking for the last non-empty segment
var filename
var i
for (i = f.length - 1; i >= 0; i--) {
filename = f[i]
if (filename) break
}
for (i = 0; i < set.length; i++) {
var pattern = set[i]
var file = f
if (options.matchBase && pattern.length === 1) {
file = [filename]
}
var hit = this.matchOne(file, pattern, partial)
if (hit) {
if (options.flipNegate) return true
return !this.negate
}
}
// didn't get any hits. this is success if it's a negative
// pattern, failure otherwise.
if (options.flipNegate) return false
return this.negate
}
// set partial to true to test if, for example,
// "/a/b" matches the start of "/*/b/*/d"
// Partial means, if you run out of file before you run
// out of pattern, then that's fine, as long as all
// the parts match.
Minimatch.prototype.matchOne = function (file, pattern, partial) {
var options = this.options
this.debug('matchOne',
{ 'this': this, file: file, pattern: pattern })
this.debug('matchOne', file.length, pattern.length)
for (var fi = 0,
pi = 0,
fl = file.length,
pl = pattern.length
; (fi < fl) && (pi < pl)
; fi++, pi++) {
this.debug('matchOne loop')
var p = pattern[pi]
var f = file[fi]
this.debug(pattern, p, f)
// should be impossible.
// some invalid regexp stuff in the set.
/* istanbul ignore if */
if (p === false) return false
if (p === GLOBSTAR) {
this.debug('GLOBSTAR', [pattern, p, f])
// "**"
// a/**/b/**/c would match the following:
// a/b/x/y/z/c
// a/x/y/z/b/c
// a/b/x/b/x/c
// a/b/c
// To do this, take the rest of the pattern after
// the **, and see if it would match the file remainder.
// If so, return success.
// If not, the ** "swallows" a segment, and try again.
// This is recursively awful.
//
// a/**/b/**/c matching a/b/x/y/z/c
// - a matches a
// - doublestar
// - matchOne(b/x/y/z/c, b/**/c)
// - b matches b
// - doublestar
// - matchOne(x/y/z/c, c) -> no
// - matchOne(y/z/c, c) -> no
// - matchOne(z/c, c) -> no
// - matchOne(c, c) yes, hit
var fr = fi
var pr = pi + 1
if (pr === pl) {
this.debug('** at the end')
// a ** at the end will just swallow the rest.
// We have found a match.
// however, it will not swallow /.x, unless
// options.dot is set.
// . and .. are *never* matched by **, for explosively
// exponential reasons.
for (; fi < fl; fi++) {
if (file[fi] === '.' || file[fi] === '..' ||
(!options.dot && file[fi].charAt(0) === '.')) return false
}
return true
}
// ok, let's see if we can swallow whatever we can.
while (fr < fl) {
var swallowee = file[fr]
this.debug('\nglobstar while', file, fr, pattern, pr, swallowee)
// XXX remove this slice. Just pass the start index.
if (this.matchOne(file.slice(fr), pattern.slice(pr), partial)) {
this.debug('globstar found match!', fr, fl, swallowee)
// found a match.
return true
} else {
// can't swallow "." or ".." ever.
// can only swallow ".foo" when explicitly asked.
if (swallowee === '.' || swallowee === '..' ||
(!options.dot && swallowee.charAt(0) === '.')) {
this.debug('dot detected!', file, fr, pattern, pr)
break
}
// ** swallows a segment, and continue.
this.debug('globstar swallow a segment, and continue')
fr++
}
}
// no match was found.
// However, in partial mode, we can't say this is necessarily over.
// If there's more *pattern* left, then
/* istanbul ignore if */
if (partial) {
// ran out of file
this.debug('\n>>> no match, partial?', file, fr, pattern, pr)
if (fr === fl) return true
}
return false
}
// something other than **
// non-magic patterns just have to match exactly
// patterns with magic have been turned into regexps.
var hit
if (typeof p === 'string') {
hit = f === p
this.debug('string match', p, f, hit)
} else {
hit = f.match(p)
this.debug('pattern match', p, f, hit)
}
if (!hit) return false
}
// Note: ending in / means that we'll get a final ""
// at the end of the pattern. This can only match a
// corresponding "" at the end of the file.
// If the file ends in /, then it can only match a
// a pattern that ends in /, unless the pattern just
// doesn't have any more for it. But, a/b/ should *not*
// match "a/b/*", even though "" matches against the
// [^/]*? pattern, except in partial mode, where it might
// simply not be reached yet.
// However, a/b/ should still satisfy a/*
// now either we fell off the end of the pattern, or we're done.
if (fi === fl && pi === pl) {
// ran out of pattern and filename at the same time.
// an exact hit!
return true
} else if (fi === fl) {
// ran out of file, but still had pattern left.
// this is ok if we're doing the match as part of
// a glob fs traversal.
return partial
} else /* istanbul ignore else */ if (pi === pl) {
// ran out of pattern, still have file left.
// this is only acceptable if we're on the very last
// empty segment of a file with a trailing slash.
// a/* should match a/b/
return (fi === fl - 1) && (file[fi] === '')
}
// should be unreachable.
/* istanbul ignore next */
throw new Error('wtf?')
}
// replace stuff like \* with *
function globUnescape (s) {
return s.replace(/\\(.)/g, '$1')
}
function regExpEscape (s) {
return s.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&')
}

View File

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{
"author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me)",
"name": "minimatch",
"description": "a glob matcher in javascript",
"version": "3.1.2",
"publishConfig": {
"tag": "v3-legacy"
},
"repository": {
"type": "git",
"url": "git://github.com/isaacs/minimatch.git"
},
"main": "minimatch.js",
"scripts": {
"test": "tap",
"preversion": "npm test",
"postversion": "npm publish",
"postpublish": "git push origin --all; git push origin --tags"
},
"engines": {
"node": "*"
},
"dependencies": {
"brace-expansion": "^1.1.7"
},
"devDependencies": {
"tap": "^15.1.6"
},
"license": "ISC",
"files": [
"minimatch.js"
]
}

64
node_modules/@eslint/config-array/package.json generated vendored Normal file
View File

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{
"name": "@eslint/config-array",
"version": "0.21.1",
"description": "General purpose glob-based configuration matching.",
"author": "Nicholas C. Zakas",
"type": "module",
"main": "dist/esm/index.js",
"types": "dist/esm/index.d.ts",
"exports": {
"require": {
"types": "./dist/cjs/index.d.cts",
"default": "./dist/cjs/index.cjs"
},
"import": {
"types": "./dist/esm/index.d.ts",
"default": "./dist/esm/index.js"
}
},
"files": [
"dist"
],
"publishConfig": {
"access": "public"
},
"repository": {
"type": "git",
"url": "git+https://github.com/eslint/rewrite.git",
"directory": "packages/config-array"
},
"bugs": {
"url": "https://github.com/eslint/rewrite/issues"
},
"homepage": "https://github.com/eslint/rewrite/tree/main/packages/config-array#readme",
"scripts": {
"build:dedupe-types": "node ../../tools/dedupe-types.js dist/cjs/index.cjs dist/esm/index.js",
"build:cts": "node ../../tools/build-cts.js dist/esm/index.d.ts dist/cjs/index.d.cts",
"build:std__path": "rollup -c rollup.std__path-config.js && node fix-std__path-imports",
"build": "rollup -c && npm run build:dedupe-types && tsc -p tsconfig.esm.json && npm run build:cts && npm run build:std__path",
"pretest": "npm run build",
"test": "mocha \"tests/**/*.test.js\"",
"test:coverage": "c8 npm test",
"test:jsr": "npx jsr@latest publish --dry-run",
"test:types": "tsc -p tests/types/tsconfig.json"
},
"keywords": [
"configuration",
"configarray",
"config file"
],
"license": "Apache-2.0",
"dependencies": {
"@eslint/object-schema": "^2.1.7",
"debug": "^4.3.1",
"minimatch": "^3.1.2"
},
"devDependencies": {
"@jsr/std__path": "^1.0.4",
"@types/minimatch": "^3.0.5",
"rollup-plugin-copy": "^3.5.0"
},
"engines": {
"node": "^18.18.0 || ^20.9.0 || >=21.1.0"
}
}

201
node_modules/@eslint/config-helpers/LICENSE generated vendored Normal file
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@@ -0,0 +1,201 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
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97
node_modules/@eslint/config-helpers/README.md generated vendored Normal file
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# @eslint/config-helpers
## Description
Helper utilities for creating ESLint configuration.
## Installation
For Node.js and compatible runtimes:
```shell
npm install @eslint/config-helpers
# or
yarn add @eslint/config-helpers
# or
pnpm install @eslint/config-helpers
# or
bun add @eslint/config-helpers
```
For Deno:
```shell
deno add @eslint/config-helpers
```
## Usage
### `defineConfig()`
The `defineConfig()` function allows you to specify an ESLint configuration with full type checking and additional capabilities, such as `extends`. Here's an example:
```js
// eslint.config.js
import { defineConfig } from "@eslint/config-helpers";
import js from "@eslint/js";
export default defineConfig([
{
files: ["src/**/*.js"],
plugins: { js },
extends: ["js/recommended"],
rules: {
semi: "error",
"prefer-const": "error",
},
},
{
files: ["test/**/*.js"],
rules: {
"no-console": "off",
},
},
]);
```
### `globalIgnores()`
The `globalIgnores()` function allows you to specify patterns for files and directories that should be globally ignored by ESLint. This is useful for excluding files that you don't want to lint, such as build directories or third-party libraries. Here's an example:
```js
// eslint.config.js
import { defineConfig, globalIgnores } from "@eslint/config-helpers";
export default defineConfig([
{
files: ["src/**/*.js"],
rules: {
semi: "error",
"prefer-const": "error",
},
},
globalIgnores(["node_modules/", "dist/", "coverage/"]),
]);
```
## License
Apache 2.0
<!-- NOTE: This section is autogenerated. Do not manually edit.-->
<!--sponsorsstart-->
## Sponsors
The following companies, organizations, and individuals support ESLint's ongoing maintenance and development. [Become a Sponsor](https://eslint.org/donate)
to get your logo on our READMEs and [website](https://eslint.org/sponsors).
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<h3>Technology Sponsors</h3>
Technology sponsors allow us to use their products and services for free as part of a contribution to the open source ecosystem and our work.
<p><a href="https://netlify.com"><img src="https://raw.githubusercontent.com/eslint/eslint.org/main/src/assets/images/techsponsors/netlify-icon.svg" alt="Netlify" height="32"></a> <a href="https://algolia.com"><img src="https://raw.githubusercontent.com/eslint/eslint.org/main/src/assets/images/techsponsors/algolia-icon.svg" alt="Algolia" height="32"></a> <a href="https://1password.com"><img src="https://raw.githubusercontent.com/eslint/eslint.org/main/src/assets/images/techsponsors/1password-icon.svg" alt="1Password" height="32"></a></p>
<!--sponsorsend-->

588
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@@ -0,0 +1,588 @@
'use strict';
/**
* @fileoverview defineConfig helper
* @author Nicholas C. Zakas
*/
//-----------------------------------------------------------------------------
// Type Definitions
//-----------------------------------------------------------------------------
/** @import * as $eslintcore from "@eslint/core"; */
/** @typedef {$eslintcore.ConfigObject} Config */
/** @typedef {$eslintcore.LegacyConfigObject} LegacyConfig */
/** @typedef {$eslintcore.Plugin} Plugin */
/** @typedef {$eslintcore.RuleConfig} RuleConfig */
/** @import * as $typests from "./types.ts"; */
/** @typedef {$typests.ExtendsElement} ExtendsElement */
/** @typedef {$typests.SimpleExtendsElement} SimpleExtendsElement */
/** @typedef {$typests.ConfigWithExtends} ConfigWithExtends */
/** @typedef {$typests.InfiniteArray<Config>} InfiniteConfigArray */
/** @typedef {$typests.ConfigWithExtendsArray} ConfigWithExtendsArray */
//-----------------------------------------------------------------------------
// Helpers
//-----------------------------------------------------------------------------
const eslintrcKeys = [
"env",
"extends",
"globals",
"ignorePatterns",
"noInlineConfig",
"overrides",
"parser",
"parserOptions",
"reportUnusedDisableDirectives",
"root",
];
const allowedGlobalIgnoreKeys = new Set(["basePath", "ignores", "name"]);
/**
* Gets the name of a config object.
* @param {Config} config The config object.
* @param {string} indexPath The index path of the config object.
* @return {string} The name of the config object.
*/
function getConfigName(config, indexPath) {
if (config.name) {
return config.name;
}
return `UserConfig${indexPath}`;
}
/**
* Gets the name of an extension.
* @param {SimpleExtendsElement} extension The extension.
* @param {string} indexPath The index of the extension.
* @return {string} The name of the extension.
*/
function getExtensionName(extension, indexPath) {
if (typeof extension === "string") {
return extension;
}
if (extension.name) {
return extension.name;
}
return `ExtendedConfig${indexPath}`;
}
/**
* Determines if a config object is a legacy config.
* @param {Config|LegacyConfig} config The config object to check.
* @return {config is LegacyConfig} `true` if the config object is a legacy config.
*/
function isLegacyConfig(config) {
// eslintrc's plugins must be an array; while flat config's must be an object.
if (Array.isArray(config.plugins)) {
return true;
}
for (const key of eslintrcKeys) {
if (key in config) {
return true;
}
}
return false;
}
/**
* Determines if a config object is a global ignores config.
* @param {Config} config The config object to check.
* @return {boolean} `true` if the config object is a global ignores config.
*/
function isGlobalIgnores(config) {
return Object.keys(config).every(key => allowedGlobalIgnoreKeys.has(key));
}
/**
* Parses a plugin member ID (rule, processor, etc.) and returns
* the namespace and member name.
* @param {string} id The ID to parse.
* @returns {{namespace:string, name:string}} The namespace and member name.
*/
function getPluginMember(id) {
const firstSlashIndex = id.indexOf("/");
if (firstSlashIndex === -1) {
return { namespace: "", name: id };
}
let namespace = id.slice(0, firstSlashIndex);
/*
* Special cases:
* 1. The namespace is `@`, that means it's referring to the
* core plugin so `@` is the full namespace.
* 2. The namespace starts with `@`, that means it's referring to
* an npm scoped package. That means the namespace is the scope
* and the package name (i.e., `@eslint/core`).
*/
if (namespace[0] === "@" && namespace !== "@") {
const secondSlashIndex = id.indexOf("/", firstSlashIndex + 1);
if (secondSlashIndex !== -1) {
namespace = id.slice(0, secondSlashIndex);
return { namespace, name: id.slice(secondSlashIndex + 1) };
}
}
const name = id.slice(firstSlashIndex + 1);
return { namespace, name };
}
/**
* Normalizes the plugin config by replacing the namespace with the plugin namespace.
* @param {string} userNamespace The namespace of the plugin.
* @param {Plugin} plugin The plugin config object.
* @param {Config} config The config object to normalize.
* @return {Config} The normalized config object.
*/
function normalizePluginConfig(userNamespace, plugin, config) {
const pluginNamespace = plugin.meta?.namespace;
// don't do anything if the plugin doesn't have a namespace or rules
if (
!pluginNamespace ||
pluginNamespace === userNamespace ||
(!config.rules && !config.processor && !config.language)
) {
return config;
}
const result = { ...config };
// update the rules
if (result.rules) {
const ruleIds = Object.keys(result.rules);
/** @type {Record<string,RuleConfig|undefined>} */
const newRules = {};
for (let i = 0; i < ruleIds.length; i++) {
const ruleId = ruleIds[i];
const { namespace: ruleNamespace, name: ruleName } =
getPluginMember(ruleId);
if (ruleNamespace === pluginNamespace) {
newRules[`${userNamespace}/${ruleName}`] = result.rules[ruleId];
} else {
newRules[ruleId] = result.rules[ruleId];
}
}
result.rules = newRules;
}
// update the processor
if (typeof result.processor === "string") {
const { namespace: processorNamespace, name: processorName } =
getPluginMember(result.processor);
if (processorNamespace) {
if (processorNamespace === pluginNamespace) {
result.processor = `${userNamespace}/${processorName}`;
}
}
}
// update the language
if (typeof result.language === "string") {
const { namespace: languageNamespace, name: languageName } =
getPluginMember(result.language);
if (languageNamespace === pluginNamespace) {
result.language = `${userNamespace}/${languageName}`;
}
}
return result;
}
/**
* Deeply normalizes a plugin config, traversing recursively into an arrays.
* @param {string} userPluginNamespace The namespace of the plugin.
* @param {Plugin} plugin The plugin object.
* @param {Config|LegacyConfig|(Config|LegacyConfig)[]} pluginConfig The plugin config to normalize.
* @param {string} pluginConfigName The name of the plugin config.
* @return {InfiniteConfigArray} The normalized plugin config.
* @throws {TypeError} If the plugin config is a legacy config.
*/
function deepNormalizePluginConfig(
userPluginNamespace,
plugin,
pluginConfig,
pluginConfigName,
) {
// if it's an array then it's definitely a new config
if (Array.isArray(pluginConfig)) {
return pluginConfig.map(pluginSubConfig =>
deepNormalizePluginConfig(
userPluginNamespace,
plugin,
pluginSubConfig,
pluginConfigName,
),
);
}
// if it's a legacy config, throw an error
if (isLegacyConfig(pluginConfig)) {
throw new TypeError(
`Plugin config "${pluginConfigName}" is an eslintrc config and cannot be used in this context.`,
);
}
return normalizePluginConfig(userPluginNamespace, plugin, pluginConfig);
}
/**
* Finds a plugin config by name in the given config.
* @param {Config} config The config object.
* @param {string} pluginConfigName The name of the plugin config.
* @return {InfiniteConfigArray} The plugin config.
* @throws {TypeError} If the plugin config is not found or is a legacy config.
*/
function findPluginConfig(config, pluginConfigName) {
const { namespace: userPluginNamespace, name: configName } =
getPluginMember(pluginConfigName);
const plugin = config.plugins?.[userPluginNamespace];
if (!plugin) {
throw new TypeError(`Plugin "${userPluginNamespace}" not found.`);
}
const directConfig = plugin.configs?.[configName];
// Prefer direct config, but fall back to flat config if available
if (directConfig) {
// Arrays are always flat configs, and non-legacy configs can be used directly
if (Array.isArray(directConfig) || !isLegacyConfig(directConfig)) {
return deepNormalizePluginConfig(
userPluginNamespace,
plugin,
directConfig,
pluginConfigName,
);
}
}
// If it's a legacy config, or the config does not exist => look for the flat version
const flatConfig = plugin.configs?.[`flat/${configName}`];
if (
flatConfig &&
(Array.isArray(flatConfig) || !isLegacyConfig(flatConfig))
) {
return deepNormalizePluginConfig(
userPluginNamespace,
plugin,
flatConfig,
pluginConfigName,
);
}
// If we get here, then the config was either not found or is a legacy config
const message =
directConfig || flatConfig
? `Plugin config "${configName}" in plugin "${userPluginNamespace}" is an eslintrc config and cannot be used in this context.`
: `Plugin config "${configName}" not found in plugin "${userPluginNamespace}".`;
throw new TypeError(message);
}
/**
* Flattens an array while keeping track of the index path.
* @param {any[]} configList The array to traverse.
* @param {string} indexPath The index path of the value in a multidimensional array.
* @return {IterableIterator<{indexPath:string, value:any}>} The flattened list of values.
*/
function* flatTraverse(configList, indexPath = "") {
for (let i = 0; i < configList.length; i++) {
const newIndexPath = indexPath ? `${indexPath}[${i}]` : `[${i}]`;
// if it's an array then traverse it as well
if (Array.isArray(configList[i])) {
yield* flatTraverse(configList[i], newIndexPath);
continue;
}
yield { indexPath: newIndexPath, value: configList[i] };
}
}
/**
* Extends a list of config files by creating every combination of base and extension files.
* @param {(string|string[])[]} [baseFiles] The base files.
* @param {(string|string[])[]} [extensionFiles] The extension files.
* @return {(string|string[])[]} The extended files.
*/
function extendConfigFiles(baseFiles = [], extensionFiles = []) {
if (!extensionFiles.length) {
return baseFiles.concat();
}
if (!baseFiles.length) {
return extensionFiles.concat();
}
/** @type {(string|string[])[]} */
const result = [];
for (const baseFile of baseFiles) {
for (const extensionFile of extensionFiles) {
/*
* Each entry can be a string or array of strings. The end result
* needs to be an array of strings, so we need to be sure to include
* all of the items when there's an array.
*/
const entry = [];
if (Array.isArray(baseFile)) {
entry.push(...baseFile);
} else {
entry.push(baseFile);
}
if (Array.isArray(extensionFile)) {
entry.push(...extensionFile);
} else {
entry.push(extensionFile);
}
result.push(entry);
}
}
return result;
}
/**
* Extends a config object with another config object.
* @param {Config} baseConfig The base config object.
* @param {string} baseConfigName The name of the base config object.
* @param {Config} extension The extension config object.
* @param {string} extensionName The index of the extension config object.
* @return {Config} The extended config object.
*/
function extendConfig(baseConfig, baseConfigName, extension, extensionName) {
const result = { ...extension };
// for global ignores there is no further work to be done, we just keep everything
if (!isGlobalIgnores(extension)) {
// for files we need to create every combination of base and extension files
if (baseConfig.files) {
result.files = extendConfigFiles(baseConfig.files, extension.files);
}
// for ignores we just concatenation the extension ignores onto the base ignores
if (baseConfig.ignores) {
result.ignores = baseConfig.ignores.concat(extension.ignores ?? []);
}
}
result.name = `${baseConfigName} > ${extensionName}`;
// @ts-ignore -- ESLint types aren't updated yet
if (baseConfig.basePath) {
// @ts-ignore -- ESLint types aren't updated yet
result.basePath = baseConfig.basePath;
}
return result;
}
/**
* Processes a list of extends elements.
* @param {ConfigWithExtends} config The config object.
* @param {WeakMap<Config, string>} configNames The map of config objects to their names.
* @return {Config[]} The flattened list of config objects.
* @throws {TypeError} If the `extends` property is not an array or if nested `extends` is found.
*/
function processExtends(config, configNames) {
if (!config.extends) {
return [config];
}
if (!Array.isArray(config.extends)) {
throw new TypeError("The `extends` property must be an array.");
}
const {
/** @type {Config[]} */
extends: extendsList,
/** @type {Config} */
...configObject
} = config;
const extensionNames = new WeakMap();
// replace strings with the actual configs
const objectExtends = extendsList.map(extendsElement => {
if (typeof extendsElement === "string") {
const pluginConfig = findPluginConfig(config, extendsElement);
// assign names
if (Array.isArray(pluginConfig)) {
pluginConfig.forEach((pluginConfigElement, index) => {
extensionNames.set(
pluginConfigElement,
`${extendsElement}[${index}]`,
);
});
} else {
extensionNames.set(pluginConfig, extendsElement);
}
return pluginConfig;
}
return /** @type {Config} */ (extendsElement);
});
const result = [];
for (const { indexPath, value: extendsElement } of flatTraverse(
objectExtends,
)) {
const extension = /** @type {Config} */ (extendsElement);
if ("basePath" in extension) {
throw new TypeError("'basePath' in `extends` is not allowed.");
}
if ("extends" in extension) {
throw new TypeError("Nested 'extends' is not allowed.");
}
const baseConfigName = /** @type {string} */ (configNames.get(config));
const extensionName =
extensionNames.get(extendsElement) ??
getExtensionName(extendsElement, indexPath);
result.push(
extendConfig(
configObject,
baseConfigName,
extension,
extensionName,
),
);
}
/*
* If the base config object has only `ignores` and `extends`, then
* removing `extends` turns it into a global ignores, which is not what
* we want. So we need to check if the base config object is a global ignores
* and if so, we don't add it to the array.
*
* (The other option would be to add a `files` entry, but that would result
* in a config that didn't actually do anything because there are no
* other keys in the config.)
*/
if (!isGlobalIgnores(configObject)) {
result.push(configObject);
}
return result.flat();
}
/**
* Processes a list of config objects and arrays.
* @param {ConfigWithExtends[]} configList The list of config objects and arrays.
* @param {WeakMap<Config, string>} configNames The map of config objects to their names.
* @return {Config[]} The flattened list of config objects.
*/
function processConfigList(configList, configNames) {
return configList.flatMap(config => processExtends(config, configNames));
}
//-----------------------------------------------------------------------------
// Exports
//-----------------------------------------------------------------------------
/**
* Helper function to define a config array.
* @param {ConfigWithExtendsArray} args The arguments to the function.
* @returns {Config[]} The config array.
* @throws {TypeError} If no arguments are provided or if an argument is not an object.
*/
function defineConfig(...args) {
const configNames = new WeakMap();
const configs = [];
if (args.length === 0) {
throw new TypeError("Expected one or more arguments.");
}
// first flatten the list of configs and get the names
for (const { indexPath, value } of flatTraverse(args)) {
if (typeof value !== "object" || value === null) {
throw new TypeError(
`Expected an object but received ${String(value)}.`,
);
}
const config = /** @type {ConfigWithExtends} */ (value);
// save config name for easy reference later
configNames.set(config, getConfigName(config, indexPath));
configs.push(config);
}
return processConfigList(configs, configNames);
}
/**
* @fileoverview Global ignores helper function.
* @author Nicholas C. Zakas
*/
//-----------------------------------------------------------------------------
// Type Definitions
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// Helpers
//-----------------------------------------------------------------------------
let globalIgnoreCount = 0;
//-----------------------------------------------------------------------------
// Exports
//-----------------------------------------------------------------------------
/**
* Creates a global ignores config with the given patterns.
* @param {string[]} ignorePatterns The ignore patterns.
* @param {string} [name] The name of the global ignores config.
* @returns {Config} The global ignores config.
* @throws {TypeError} If ignorePatterns is not an array or if it is empty.
*/
function globalIgnores(ignorePatterns, name) {
if (!Array.isArray(ignorePatterns)) {
throw new TypeError("ignorePatterns must be an array");
}
if (ignorePatterns.length === 0) {
throw new TypeError("ignorePatterns must contain at least one pattern");
}
const id = globalIgnoreCount++;
return {
name: name || `globalIgnores ${id}`,
ignores: ignorePatterns,
};
}
exports.defineConfig = defineConfig;
exports.globalIgnores = globalIgnores;

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export type Config = $eslintcore.ConfigObject;
export type LegacyConfig = $eslintcore.LegacyConfigObject;
export type Plugin = $eslintcore.Plugin;
export type RuleConfig = $eslintcore.RuleConfig;
export type ExtendsElement = $typests.ExtendsElement;
export type SimpleExtendsElement = $typests.SimpleExtendsElement;
export type ConfigWithExtends = $typests.ConfigWithExtends;
export type InfiniteConfigArray = $typests.InfiniteArray<Config>;
export type ConfigWithExtendsArray = $typests.ConfigWithExtendsArray;
/**
* Helper function to define a config array.
* @param {ConfigWithExtendsArray} args The arguments to the function.
* @returns {Config[]} The config array.
* @throws {TypeError} If no arguments are provided or if an argument is not an object.
*/
export function defineConfig(...args: ConfigWithExtendsArray): Config[];
/**
* Creates a global ignores config with the given patterns.
* @param {string[]} ignorePatterns The ignore patterns.
* @param {string} [name] The name of the global ignores config.
* @returns {Config} The global ignores config.
* @throws {TypeError} If ignorePatterns is not an array or if it is empty.
*/
export function globalIgnores(ignorePatterns: string[], name?: string): Config;
import type * as $eslintcore from "@eslint/core";
import type * as $typests from "./types.cts";

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/**
* @fileoverview Types for this package.
*/
import type { ConfigObject } from "@eslint/core";
/**
* Infinite array type.
*/
export type InfiniteArray<T> = T | InfiniteArray<T>[];
/**
* The type of array element in the `extends` property after flattening.
*/
export type SimpleExtendsElement = string | ConfigObject;
/**
* The type of array element in the `extends` property before flattening.
*/
export type ExtendsElement = SimpleExtendsElement | InfiniteArray<ConfigObject>;
/**
* Config with extends. Valid only inside of `defineConfig()`.
*/
export interface ConfigWithExtends extends ConfigObject {
extends?: ExtendsElement[];
}
export type ConfigWithExtendsArray = InfiniteArray<ConfigWithExtends>[];

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export type Config = $eslintcore.ConfigObject;
export type LegacyConfig = $eslintcore.LegacyConfigObject;
export type Plugin = $eslintcore.Plugin;
export type RuleConfig = $eslintcore.RuleConfig;
export type ExtendsElement = $typests.ExtendsElement;
export type SimpleExtendsElement = $typests.SimpleExtendsElement;
export type ConfigWithExtends = $typests.ConfigWithExtends;
export type InfiniteConfigArray = $typests.InfiniteArray<Config>;
export type ConfigWithExtendsArray = $typests.ConfigWithExtendsArray;
/**
* Helper function to define a config array.
* @param {ConfigWithExtendsArray} args The arguments to the function.
* @returns {Config[]} The config array.
* @throws {TypeError} If no arguments are provided or if an argument is not an object.
*/
export function defineConfig(...args: ConfigWithExtendsArray): Config[];
/**
* Creates a global ignores config with the given patterns.
* @param {string[]} ignorePatterns The ignore patterns.
* @param {string} [name] The name of the global ignores config.
* @returns {Config} The global ignores config.
* @throws {TypeError} If ignorePatterns is not an array or if it is empty.
*/
export function globalIgnores(ignorePatterns: string[], name?: string): Config;
import type * as $eslintcore from "@eslint/core";
import type * as $typests from "./types.ts";

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// @ts-self-types="./index.d.ts"
/**
* @fileoverview defineConfig helper
* @author Nicholas C. Zakas
*/
//-----------------------------------------------------------------------------
// Type Definitions
//-----------------------------------------------------------------------------
/** @import * as $eslintcore from "@eslint/core"; */
/** @typedef {$eslintcore.ConfigObject} Config */
/** @typedef {$eslintcore.LegacyConfigObject} LegacyConfig */
/** @typedef {$eslintcore.Plugin} Plugin */
/** @typedef {$eslintcore.RuleConfig} RuleConfig */
/** @import * as $typests from "./types.ts"; */
/** @typedef {$typests.ExtendsElement} ExtendsElement */
/** @typedef {$typests.SimpleExtendsElement} SimpleExtendsElement */
/** @typedef {$typests.ConfigWithExtends} ConfigWithExtends */
/** @typedef {$typests.InfiniteArray<Config>} InfiniteConfigArray */
/** @typedef {$typests.ConfigWithExtendsArray} ConfigWithExtendsArray */
//-----------------------------------------------------------------------------
// Helpers
//-----------------------------------------------------------------------------
const eslintrcKeys = [
"env",
"extends",
"globals",
"ignorePatterns",
"noInlineConfig",
"overrides",
"parser",
"parserOptions",
"reportUnusedDisableDirectives",
"root",
];
const allowedGlobalIgnoreKeys = new Set(["basePath", "ignores", "name"]);
/**
* Gets the name of a config object.
* @param {Config} config The config object.
* @param {string} indexPath The index path of the config object.
* @return {string} The name of the config object.
*/
function getConfigName(config, indexPath) {
if (config.name) {
return config.name;
}
return `UserConfig${indexPath}`;
}
/**
* Gets the name of an extension.
* @param {SimpleExtendsElement} extension The extension.
* @param {string} indexPath The index of the extension.
* @return {string} The name of the extension.
*/
function getExtensionName(extension, indexPath) {
if (typeof extension === "string") {
return extension;
}
if (extension.name) {
return extension.name;
}
return `ExtendedConfig${indexPath}`;
}
/**
* Determines if a config object is a legacy config.
* @param {Config|LegacyConfig} config The config object to check.
* @return {config is LegacyConfig} `true` if the config object is a legacy config.
*/
function isLegacyConfig(config) {
// eslintrc's plugins must be an array; while flat config's must be an object.
if (Array.isArray(config.plugins)) {
return true;
}
for (const key of eslintrcKeys) {
if (key in config) {
return true;
}
}
return false;
}
/**
* Determines if a config object is a global ignores config.
* @param {Config} config The config object to check.
* @return {boolean} `true` if the config object is a global ignores config.
*/
function isGlobalIgnores(config) {
return Object.keys(config).every(key => allowedGlobalIgnoreKeys.has(key));
}
/**
* Parses a plugin member ID (rule, processor, etc.) and returns
* the namespace and member name.
* @param {string} id The ID to parse.
* @returns {{namespace:string, name:string}} The namespace and member name.
*/
function getPluginMember(id) {
const firstSlashIndex = id.indexOf("/");
if (firstSlashIndex === -1) {
return { namespace: "", name: id };
}
let namespace = id.slice(0, firstSlashIndex);
/*
* Special cases:
* 1. The namespace is `@`, that means it's referring to the
* core plugin so `@` is the full namespace.
* 2. The namespace starts with `@`, that means it's referring to
* an npm scoped package. That means the namespace is the scope
* and the package name (i.e., `@eslint/core`).
*/
if (namespace[0] === "@" && namespace !== "@") {
const secondSlashIndex = id.indexOf("/", firstSlashIndex + 1);
if (secondSlashIndex !== -1) {
namespace = id.slice(0, secondSlashIndex);
return { namespace, name: id.slice(secondSlashIndex + 1) };
}
}
const name = id.slice(firstSlashIndex + 1);
return { namespace, name };
}
/**
* Normalizes the plugin config by replacing the namespace with the plugin namespace.
* @param {string} userNamespace The namespace of the plugin.
* @param {Plugin} plugin The plugin config object.
* @param {Config} config The config object to normalize.
* @return {Config} The normalized config object.
*/
function normalizePluginConfig(userNamespace, plugin, config) {
const pluginNamespace = plugin.meta?.namespace;
// don't do anything if the plugin doesn't have a namespace or rules
if (
!pluginNamespace ||
pluginNamespace === userNamespace ||
(!config.rules && !config.processor && !config.language)
) {
return config;
}
const result = { ...config };
// update the rules
if (result.rules) {
const ruleIds = Object.keys(result.rules);
/** @type {Record<string,RuleConfig|undefined>} */
const newRules = {};
for (let i = 0; i < ruleIds.length; i++) {
const ruleId = ruleIds[i];
const { namespace: ruleNamespace, name: ruleName } =
getPluginMember(ruleId);
if (ruleNamespace === pluginNamespace) {
newRules[`${userNamespace}/${ruleName}`] = result.rules[ruleId];
} else {
newRules[ruleId] = result.rules[ruleId];
}
}
result.rules = newRules;
}
// update the processor
if (typeof result.processor === "string") {
const { namespace: processorNamespace, name: processorName } =
getPluginMember(result.processor);
if (processorNamespace) {
if (processorNamespace === pluginNamespace) {
result.processor = `${userNamespace}/${processorName}`;
}
}
}
// update the language
if (typeof result.language === "string") {
const { namespace: languageNamespace, name: languageName } =
getPluginMember(result.language);
if (languageNamespace === pluginNamespace) {
result.language = `${userNamespace}/${languageName}`;
}
}
return result;
}
/**
* Deeply normalizes a plugin config, traversing recursively into an arrays.
* @param {string} userPluginNamespace The namespace of the plugin.
* @param {Plugin} plugin The plugin object.
* @param {Config|LegacyConfig|(Config|LegacyConfig)[]} pluginConfig The plugin config to normalize.
* @param {string} pluginConfigName The name of the plugin config.
* @return {InfiniteConfigArray} The normalized plugin config.
* @throws {TypeError} If the plugin config is a legacy config.
*/
function deepNormalizePluginConfig(
userPluginNamespace,
plugin,
pluginConfig,
pluginConfigName,
) {
// if it's an array then it's definitely a new config
if (Array.isArray(pluginConfig)) {
return pluginConfig.map(pluginSubConfig =>
deepNormalizePluginConfig(
userPluginNamespace,
plugin,
pluginSubConfig,
pluginConfigName,
),
);
}
// if it's a legacy config, throw an error
if (isLegacyConfig(pluginConfig)) {
throw new TypeError(
`Plugin config "${pluginConfigName}" is an eslintrc config and cannot be used in this context.`,
);
}
return normalizePluginConfig(userPluginNamespace, plugin, pluginConfig);
}
/**
* Finds a plugin config by name in the given config.
* @param {Config} config The config object.
* @param {string} pluginConfigName The name of the plugin config.
* @return {InfiniteConfigArray} The plugin config.
* @throws {TypeError} If the plugin config is not found or is a legacy config.
*/
function findPluginConfig(config, pluginConfigName) {
const { namespace: userPluginNamespace, name: configName } =
getPluginMember(pluginConfigName);
const plugin = config.plugins?.[userPluginNamespace];
if (!plugin) {
throw new TypeError(`Plugin "${userPluginNamespace}" not found.`);
}
const directConfig = plugin.configs?.[configName];
// Prefer direct config, but fall back to flat config if available
if (directConfig) {
// Arrays are always flat configs, and non-legacy configs can be used directly
if (Array.isArray(directConfig) || !isLegacyConfig(directConfig)) {
return deepNormalizePluginConfig(
userPluginNamespace,
plugin,
directConfig,
pluginConfigName,
);
}
}
// If it's a legacy config, or the config does not exist => look for the flat version
const flatConfig = plugin.configs?.[`flat/${configName}`];
if (
flatConfig &&
(Array.isArray(flatConfig) || !isLegacyConfig(flatConfig))
) {
return deepNormalizePluginConfig(
userPluginNamespace,
plugin,
flatConfig,
pluginConfigName,
);
}
// If we get here, then the config was either not found or is a legacy config
const message =
directConfig || flatConfig
? `Plugin config "${configName}" in plugin "${userPluginNamespace}" is an eslintrc config and cannot be used in this context.`
: `Plugin config "${configName}" not found in plugin "${userPluginNamespace}".`;
throw new TypeError(message);
}
/**
* Flattens an array while keeping track of the index path.
* @param {any[]} configList The array to traverse.
* @param {string} indexPath The index path of the value in a multidimensional array.
* @return {IterableIterator<{indexPath:string, value:any}>} The flattened list of values.
*/
function* flatTraverse(configList, indexPath = "") {
for (let i = 0; i < configList.length; i++) {
const newIndexPath = indexPath ? `${indexPath}[${i}]` : `[${i}]`;
// if it's an array then traverse it as well
if (Array.isArray(configList[i])) {
yield* flatTraverse(configList[i], newIndexPath);
continue;
}
yield { indexPath: newIndexPath, value: configList[i] };
}
}
/**
* Extends a list of config files by creating every combination of base and extension files.
* @param {(string|string[])[]} [baseFiles] The base files.
* @param {(string|string[])[]} [extensionFiles] The extension files.
* @return {(string|string[])[]} The extended files.
*/
function extendConfigFiles(baseFiles = [], extensionFiles = []) {
if (!extensionFiles.length) {
return baseFiles.concat();
}
if (!baseFiles.length) {
return extensionFiles.concat();
}
/** @type {(string|string[])[]} */
const result = [];
for (const baseFile of baseFiles) {
for (const extensionFile of extensionFiles) {
/*
* Each entry can be a string or array of strings. The end result
* needs to be an array of strings, so we need to be sure to include
* all of the items when there's an array.
*/
const entry = [];
if (Array.isArray(baseFile)) {
entry.push(...baseFile);
} else {
entry.push(baseFile);
}
if (Array.isArray(extensionFile)) {
entry.push(...extensionFile);
} else {
entry.push(extensionFile);
}
result.push(entry);
}
}
return result;
}
/**
* Extends a config object with another config object.
* @param {Config} baseConfig The base config object.
* @param {string} baseConfigName The name of the base config object.
* @param {Config} extension The extension config object.
* @param {string} extensionName The index of the extension config object.
* @return {Config} The extended config object.
*/
function extendConfig(baseConfig, baseConfigName, extension, extensionName) {
const result = { ...extension };
// for global ignores there is no further work to be done, we just keep everything
if (!isGlobalIgnores(extension)) {
// for files we need to create every combination of base and extension files
if (baseConfig.files) {
result.files = extendConfigFiles(baseConfig.files, extension.files);
}
// for ignores we just concatenation the extension ignores onto the base ignores
if (baseConfig.ignores) {
result.ignores = baseConfig.ignores.concat(extension.ignores ?? []);
}
}
result.name = `${baseConfigName} > ${extensionName}`;
// @ts-ignore -- ESLint types aren't updated yet
if (baseConfig.basePath) {
// @ts-ignore -- ESLint types aren't updated yet
result.basePath = baseConfig.basePath;
}
return result;
}
/**
* Processes a list of extends elements.
* @param {ConfigWithExtends} config The config object.
* @param {WeakMap<Config, string>} configNames The map of config objects to their names.
* @return {Config[]} The flattened list of config objects.
* @throws {TypeError} If the `extends` property is not an array or if nested `extends` is found.
*/
function processExtends(config, configNames) {
if (!config.extends) {
return [config];
}
if (!Array.isArray(config.extends)) {
throw new TypeError("The `extends` property must be an array.");
}
const {
/** @type {Config[]} */
extends: extendsList,
/** @type {Config} */
...configObject
} = config;
const extensionNames = new WeakMap();
// replace strings with the actual configs
const objectExtends = extendsList.map(extendsElement => {
if (typeof extendsElement === "string") {
const pluginConfig = findPluginConfig(config, extendsElement);
// assign names
if (Array.isArray(pluginConfig)) {
pluginConfig.forEach((pluginConfigElement, index) => {
extensionNames.set(
pluginConfigElement,
`${extendsElement}[${index}]`,
);
});
} else {
extensionNames.set(pluginConfig, extendsElement);
}
return pluginConfig;
}
return /** @type {Config} */ (extendsElement);
});
const result = [];
for (const { indexPath, value: extendsElement } of flatTraverse(
objectExtends,
)) {
const extension = /** @type {Config} */ (extendsElement);
if ("basePath" in extension) {
throw new TypeError("'basePath' in `extends` is not allowed.");
}
if ("extends" in extension) {
throw new TypeError("Nested 'extends' is not allowed.");
}
const baseConfigName = /** @type {string} */ (configNames.get(config));
const extensionName =
extensionNames.get(extendsElement) ??
getExtensionName(extendsElement, indexPath);
result.push(
extendConfig(
configObject,
baseConfigName,
extension,
extensionName,
),
);
}
/*
* If the base config object has only `ignores` and `extends`, then
* removing `extends` turns it into a global ignores, which is not what
* we want. So we need to check if the base config object is a global ignores
* and if so, we don't add it to the array.
*
* (The other option would be to add a `files` entry, but that would result
* in a config that didn't actually do anything because there are no
* other keys in the config.)
*/
if (!isGlobalIgnores(configObject)) {
result.push(configObject);
}
return result.flat();
}
/**
* Processes a list of config objects and arrays.
* @param {ConfigWithExtends[]} configList The list of config objects and arrays.
* @param {WeakMap<Config, string>} configNames The map of config objects to their names.
* @return {Config[]} The flattened list of config objects.
*/
function processConfigList(configList, configNames) {
return configList.flatMap(config => processExtends(config, configNames));
}
//-----------------------------------------------------------------------------
// Exports
//-----------------------------------------------------------------------------
/**
* Helper function to define a config array.
* @param {ConfigWithExtendsArray} args The arguments to the function.
* @returns {Config[]} The config array.
* @throws {TypeError} If no arguments are provided or if an argument is not an object.
*/
function defineConfig(...args) {
const configNames = new WeakMap();
const configs = [];
if (args.length === 0) {
throw new TypeError("Expected one or more arguments.");
}
// first flatten the list of configs and get the names
for (const { indexPath, value } of flatTraverse(args)) {
if (typeof value !== "object" || value === null) {
throw new TypeError(
`Expected an object but received ${String(value)}.`,
);
}
const config = /** @type {ConfigWithExtends} */ (value);
// save config name for easy reference later
configNames.set(config, getConfigName(config, indexPath));
configs.push(config);
}
return processConfigList(configs, configNames);
}
/**
* @fileoverview Global ignores helper function.
* @author Nicholas C. Zakas
*/
//-----------------------------------------------------------------------------
// Type Definitions
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// Helpers
//-----------------------------------------------------------------------------
let globalIgnoreCount = 0;
//-----------------------------------------------------------------------------
// Exports
//-----------------------------------------------------------------------------
/**
* Creates a global ignores config with the given patterns.
* @param {string[]} ignorePatterns The ignore patterns.
* @param {string} [name] The name of the global ignores config.
* @returns {Config} The global ignores config.
* @throws {TypeError} If ignorePatterns is not an array or if it is empty.
*/
function globalIgnores(ignorePatterns, name) {
if (!Array.isArray(ignorePatterns)) {
throw new TypeError("ignorePatterns must be an array");
}
if (ignorePatterns.length === 0) {
throw new TypeError("ignorePatterns must contain at least one pattern");
}
const id = globalIgnoreCount++;
return {
name: name || `globalIgnores ${id}`,
ignores: ignorePatterns,
};
}
export { defineConfig, globalIgnores };

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/**
* @fileoverview Types for this package.
*/
import type { ConfigObject } from "@eslint/core";
/**
* Infinite array type.
*/
export type InfiniteArray<T> = T | InfiniteArray<T>[];
/**
* The type of array element in the `extends` property after flattening.
*/
export type SimpleExtendsElement = string | ConfigObject;
/**
* The type of array element in the `extends` property before flattening.
*/
export type ExtendsElement = SimpleExtendsElement | InfiniteArray<ConfigObject>;
/**
* Config with extends. Valid only inside of `defineConfig()`.
*/
export interface ConfigWithExtends extends ConfigObject {
extends?: ExtendsElement[];
}
export type ConfigWithExtendsArray = InfiniteArray<ConfigWithExtends>[];

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/**
* @fileoverview Types for this package.
*/
import type { ConfigObject } from "@eslint/core";
/**
* Infinite array type.
*/
export type InfiniteArray<T> = T | InfiniteArray<T>[];
/**
* The type of array element in the `extends` property after flattening.
*/
export type SimpleExtendsElement = string | ConfigObject;
/**
* The type of array element in the `extends` property before flattening.
*/
export type ExtendsElement = SimpleExtendsElement | InfiniteArray<ConfigObject>;
/**
* Config with extends. Valid only inside of `defineConfig()`.
*/
export interface ConfigWithExtends extends ConfigObject {
extends?: ExtendsElement[];
}
export type ConfigWithExtendsArray = InfiniteArray<ConfigWithExtends>[];

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{
"name": "@eslint/config-helpers",
"version": "0.4.2",
"description": "Helper utilities for creating ESLint configuration",
"type": "module",
"main": "dist/esm/index.js",
"types": "dist/esm/index.d.ts",
"exports": {
"require": {
"types": "./dist/cjs/index.d.cts",
"default": "./dist/cjs/index.cjs"
},
"import": {
"types": "./dist/esm/index.d.ts",
"default": "./dist/esm/index.js"
}
},
"files": [
"dist"
],
"publishConfig": {
"access": "public"
},
"directories": {
"test": "tests"
},
"scripts": {
"build:dedupe-types": "node ../../tools/dedupe-types.js dist/cjs/index.cjs dist/esm/index.js",
"build:cts": "node ../../tools/build-cts.js dist/esm/index.d.ts dist/cjs/index.d.cts",
"build": "rollup -c && npm run build:dedupe-types && tsc -p tsconfig.esm.json && npm run build:cts",
"test": "mocha \"tests/**/*.test.js\"",
"test:coverage": "c8 npm test",
"test:jsr": "npx jsr@latest publish --dry-run",
"test:pnpm": "cd tests/pnpm && pnpm install && pnpm exec tsc",
"test:types": "tsc -p tests/types/tsconfig.json"
},
"repository": {
"type": "git",
"url": "git+https://github.com/eslint/rewrite.git",
"directory": "packages/config-helpers"
},
"keywords": [
"eslint"
],
"license": "Apache-2.0",
"bugs": {
"url": "https://github.com/eslint/rewrite/issues"
},
"homepage": "https://github.com/eslint/rewrite/tree/main/packages/config-helpers#readme",
"dependencies": {
"@eslint/core": "^0.17.0"
},
"devDependencies": {
"eslint": "^9.27.0",
"rollup-plugin-copy": "^3.5.0"
},
"engines": {
"node": "^18.18.0 || ^20.9.0 || >=21.1.0"
}
}

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# ESLint Core
## Overview
This package is the future home of the rewritten, runtime-agnostic ESLint core.
Right now, it exports the core types necessary to implement language plugins.
## License
Apache 2.0
<!-- NOTE: This section is autogenerated. Do not manually edit.-->
<!--sponsorsstart-->
## Sponsors
The following companies, organizations, and individuals support ESLint's ongoing maintenance and development. [Become a Sponsor](https://eslint.org/donate)
to get your logo on our READMEs and [website](https://eslint.org/sponsors).
<h3>Platinum Sponsors</h3>
<p><a href="https://automattic.com"><img src="https://images.opencollective.com/automattic/d0ef3e1/logo.png" alt="Automattic" height="128"></a> <a href="https://www.airbnb.com/"><img src="https://images.opencollective.com/airbnb/d327d66/logo.png" alt="Airbnb" height="128"></a></p><h3>Gold Sponsors</h3>
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<p><a href="https://syntax.fm"><img src="https://github.com/syntaxfm.png" alt="Syntax" height="32"></a> <a href="https://cybozu.co.jp/"><img src="https://images.opencollective.com/cybozu/933e46d/logo.png" alt="Cybozu" height="32"></a> <a href="https://sentry.io"><img src="https://github.com/getsentry.png" alt="Sentry" height="32"></a> <a href="https://icons8.com/"><img src="https://images.opencollective.com/icons8/7fa1641/logo.png" alt="Icons8" height="32"></a> <a href="https://discord.com"><img src="https://images.opencollective.com/discordapp/f9645d9/logo.png" alt="Discord" height="32"></a> <a href="https://www.gitbook.com"><img src="https://avatars.githubusercontent.com/u/7111340" alt="GitBook" height="32"></a> <a href="https://nx.dev"><img src="https://avatars.githubusercontent.com/u/23692104" alt="Nx" height="32"></a> <a href="https://opensource.mercedes-benz.com/"><img src="https://avatars.githubusercontent.com/u/34240465" alt="Mercedes-Benz Group" height="32"></a> <a href="https://herocoders.com"><img src="https://avatars.githubusercontent.com/u/37549774" alt="HeroCoders" height="32"></a> <a href="https://www.lambdatest.com"><img src="https://avatars.githubusercontent.com/u/171592363" alt="LambdaTest" height="32"></a></p>
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{
"name": "@eslint/core",
"version": "0.17.0",
"description": "Runtime-agnostic core of ESLint",
"type": "module",
"types": "./dist/esm/types.d.ts",
"exports": {
"types": {
"import": "./dist/esm/types.d.ts",
"require": "./dist/cjs/types.d.cts"
}
},
"files": [
"dist"
],
"publishConfig": {
"access": "public"
},
"scripts": {
"build:cts": "node -e \"fs.cpSync('dist/esm/types.d.ts', 'dist/cjs/types.d.cts')\"",
"build": "tsc && npm run build:cts",
"test:jsr": "npx jsr@latest publish --dry-run",
"test:types": "tsc -p tests/types/tsconfig.json"
},
"repository": {
"type": "git",
"url": "git+https://github.com/eslint/rewrite.git",
"directory": "packages/core"
},
"keywords": [
"eslint",
"core"
],
"author": "Nicholas C. Zakas",
"license": "Apache-2.0",
"bugs": {
"url": "https://github.com/eslint/rewrite/issues"
},
"homepage": "https://github.com/eslint/rewrite/tree/main/packages/core#readme",
"dependencies": {
"@types/json-schema": "^7.0.15"
},
"devDependencies": {
"json-schema": "^0.4.0"
},
"engines": {
"node": "^18.18.0 || ^20.9.0 || >=21.1.0"
}
}

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Copyright OpenJS Foundation and other contributors, <www.openjsf.org>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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# ESLintRC Library
This repository contains the legacy ESLintRC configuration file format for ESLint. This package is not intended for use outside of the ESLint ecosystem. It is ESLint-specific and not intended for use in other programs.
**Note:** This package is frozen except for critical bug fixes as ESLint moves to a new config system.
## Installation
You can install the package as follows:
```shell
npm install @eslint/eslintrc -D
# or
yarn add @eslint/eslintrc -D
# or
pnpm install @eslint/eslintrc -D
# or
bun install @eslint/eslintrc -D
```
## Usage (ESM)
The primary class in this package is `FlatCompat`, which is a utility to translate ESLintRC-style configs into flat configs. Here's how you use it inside of your `eslint.config.js` file:
```js
import { FlatCompat } from "@eslint/eslintrc";
import js from "@eslint/js";
import path from "path";
import { fileURLToPath } from "url";
// mimic CommonJS variables -- not needed if using CommonJS
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
const compat = new FlatCompat({
baseDirectory: __dirname, // optional; default: process.cwd()
resolvePluginsRelativeTo: __dirname, // optional
recommendedConfig: js.configs.recommended, // optional unless you're using "eslint:recommended"
allConfig: js.configs.all, // optional unless you're using "eslint:all"
});
export default [
// mimic ESLintRC-style extends
...compat.extends("standard", "example", "plugin:react/recommended"),
// mimic environments
...compat.env({
es2020: true,
node: true
}),
// mimic plugins
...compat.plugins("jsx-a11y", "react"),
// translate an entire config
...compat.config({
plugins: ["jsx-a11y", "react"],
extends: "standard",
env: {
es2020: true,
node: true
},
rules: {
semi: "error"
}
})
];
```
## Usage (CommonJS)
Using `FlatCompat` in CommonJS files is similar to ESM, but you'll use `require()` and `module.exports` instead of `import` and `export`. Here's how you use it inside of your `eslint.config.js` CommonJS file:
```js
const { FlatCompat } = require("@eslint/eslintrc");
const js = require("@eslint/js");
const compat = new FlatCompat({
baseDirectory: __dirname, // optional; default: process.cwd()
resolvePluginsRelativeTo: __dirname, // optional
recommendedConfig: js.configs.recommended, // optional unless using "eslint:recommended"
allConfig: js.configs.all, // optional unless using "eslint:all"
});
module.exports = [
// mimic ESLintRC-style extends
...compat.extends("standard", "example", "plugin:react/recommended"),
// mimic environments
...compat.env({
es2020: true,
node: true
}),
// mimic plugins
...compat.plugins("jsx-a11y", "react"),
// translate an entire config
...compat.config({
plugins: ["jsx-a11y", "react"],
extends: "standard",
env: {
es2020: true,
node: true
},
rules: {
semi: "error"
}
})
];
```
## Troubleshooting
**TypeError: Missing parameter 'recommendedConfig' in FlatCompat constructor**
The `recommendedConfig` option is required when any config uses `eslint:recommended`, including any config in an `extends` clause. To fix this, follow the example above using `@eslint/js` to provide the `eslint:recommended` config.
**TypeError: Missing parameter 'allConfig' in FlatCompat constructor**
The `allConfig` option is required when any config uses `eslint:all`, including any config in an `extends` clause. To fix this, follow the example above using `@eslint/js` to provide the `eslint:all` config.
## License
MIT License
<!-- NOTE: This section is autogenerated. Do not manually edit.-->
<!--sponsorsstart-->
## Sponsors
The following companies, organizations, and individuals support ESLint's ongoing maintenance and development. [Become a Sponsor](https://eslint.org/donate)
to get your logo on our READMEs and [website](https://eslint.org/sponsors).
<h3>Platinum Sponsors</h3>
<p><a href="https://automattic.com"><img src="https://images.opencollective.com/automattic/d0ef3e1/logo.png" alt="Automattic" height="128"></a> <a href="https://www.airbnb.com/"><img src="https://images.opencollective.com/airbnb/d327d66/logo.png" alt="Airbnb" height="128"></a></p><h3>Gold Sponsors</h3>
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<p><a href="https://cybozu.co.jp/"><img src="https://images.opencollective.com/cybozu/933e46d/logo.png" alt="Cybozu" height="32"></a> <a href="https://syntax.fm"><img src="https://github.com/syntaxfm.png" alt="Syntax" height="32"></a> <a href="https://www.n-ix.com/"><img src="https://images.opencollective.com/n-ix-ltd/575a7a5/logo.png" alt="N-iX Ltd" height="32"></a> <a href="https://icons8.com/"><img src="https://images.opencollective.com/icons8/7fa1641/logo.png" alt="Icons8" height="32"></a> <a href="https://discord.com"><img src="https://images.opencollective.com/discordapp/f9645d9/logo.png" alt="Discord" height="32"></a> <a href="https://www.gitbook.com"><img src="https://avatars.githubusercontent.com/u/7111340" alt="GitBook" height="32"></a> <a href="https://nx.dev"><img src="https://avatars.githubusercontent.com/u/23692104" alt="Nx" height="32"></a> <a href="https://opensource.mercedes-benz.com/"><img src="https://avatars.githubusercontent.com/u/34240465" alt="Mercedes-Benz Group" height="32"></a> <a href="https://herocoders.com"><img src="https://avatars.githubusercontent.com/u/37549774" alt="HeroCoders" height="32"></a> <a href="https://www.lambdatest.com"><img src="https://avatars.githubusercontent.com/u/171592363" alt="LambdaTest" height="32"></a></p>
<h3>Technology Sponsors</h3>
Technology sponsors allow us to use their products and services for free as part of a contribution to the open source ecosystem and our work.
<p><a href="https://netlify.com"><img src="https://raw.githubusercontent.com/eslint/eslint.org/main/src/assets/images/techsponsors/netlify-icon.svg" alt="Netlify" height="32"></a> <a href="https://algolia.com"><img src="https://raw.githubusercontent.com/eslint/eslint.org/main/src/assets/images/techsponsors/algolia-icon.svg" alt="Algolia" height="32"></a> <a href="https://1password.com"><img src="https://raw.githubusercontent.com/eslint/eslint.org/main/src/assets/images/techsponsors/1password-icon.svg" alt="1Password" height="32"></a></p>
<!--sponsorsend-->

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/**
* @fileoverview Defines a schema for configs.
* @author Sylvan Mably
*/
const baseConfigProperties = {
$schema: { type: "string" },
env: { type: "object" },
extends: { $ref: "#/definitions/stringOrStrings" },
globals: { type: "object" },
overrides: {
type: "array",
items: { $ref: "#/definitions/overrideConfig" },
additionalItems: false
},
parser: { type: ["string", "null"] },
parserOptions: { type: "object" },
plugins: { type: "array" },
processor: { type: "string" },
rules: { type: "object" },
settings: { type: "object" },
noInlineConfig: { type: "boolean" },
reportUnusedDisableDirectives: { type: "boolean" },
ecmaFeatures: { type: "object" } // deprecated; logs a warning when used
};
const configSchema = {
definitions: {
stringOrStrings: {
oneOf: [
{ type: "string" },
{
type: "array",
items: { type: "string" },
additionalItems: false
}
]
},
stringOrStringsRequired: {
oneOf: [
{ type: "string" },
{
type: "array",
items: { type: "string" },
additionalItems: false,
minItems: 1
}
]
},
// Config at top-level.
objectConfig: {
type: "object",
properties: {
root: { type: "boolean" },
ignorePatterns: { $ref: "#/definitions/stringOrStrings" },
...baseConfigProperties
},
additionalProperties: false
},
// Config in `overrides`.
overrideConfig: {
type: "object",
properties: {
excludedFiles: { $ref: "#/definitions/stringOrStrings" },
files: { $ref: "#/definitions/stringOrStringsRequired" },
...baseConfigProperties
},
required: ["files"],
additionalProperties: false
}
},
$ref: "#/definitions/objectConfig"
};
export default configSchema;

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/**
* @fileoverview Defines environment settings and globals.
* @author Elan Shanker
*/
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
import globals from "globals";
//------------------------------------------------------------------------------
// Helpers
//------------------------------------------------------------------------------
/**
* Get the object that has difference.
* @param {Record<string,boolean>} current The newer object.
* @param {Record<string,boolean>} prev The older object.
* @returns {Record<string,boolean>} The difference object.
*/
function getDiff(current, prev) {
const retv = {};
for (const [key, value] of Object.entries(current)) {
if (!Object.hasOwn(prev, key)) {
retv[key] = value;
}
}
return retv;
}
const newGlobals2015 = getDiff(globals.es2015, globals.es5); // 19 variables such as Promise, Map, ...
const newGlobals2017 = {
Atomics: false,
SharedArrayBuffer: false
};
const newGlobals2020 = {
BigInt: false,
BigInt64Array: false,
BigUint64Array: false,
globalThis: false
};
const newGlobals2021 = {
AggregateError: false,
FinalizationRegistry: false,
WeakRef: false
};
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
/** @type {Map<string, import("../lib/shared/types").Environment>} */
export default new Map(Object.entries({
// Language
builtin: {
globals: globals.es5
},
es6: {
globals: newGlobals2015,
parserOptions: {
ecmaVersion: 6
}
},
es2015: {
globals: newGlobals2015,
parserOptions: {
ecmaVersion: 6
}
},
es2016: {
globals: newGlobals2015,
parserOptions: {
ecmaVersion: 7
}
},
es2017: {
globals: { ...newGlobals2015, ...newGlobals2017 },
parserOptions: {
ecmaVersion: 8
}
},
es2018: {
globals: { ...newGlobals2015, ...newGlobals2017 },
parserOptions: {
ecmaVersion: 9
}
},
es2019: {
globals: { ...newGlobals2015, ...newGlobals2017 },
parserOptions: {
ecmaVersion: 10
}
},
es2020: {
globals: { ...newGlobals2015, ...newGlobals2017, ...newGlobals2020 },
parserOptions: {
ecmaVersion: 11
}
},
es2021: {
globals: { ...newGlobals2015, ...newGlobals2017, ...newGlobals2020, ...newGlobals2021 },
parserOptions: {
ecmaVersion: 12
}
},
es2022: {
globals: { ...newGlobals2015, ...newGlobals2017, ...newGlobals2020, ...newGlobals2021 },
parserOptions: {
ecmaVersion: 13
}
},
es2023: {
globals: { ...newGlobals2015, ...newGlobals2017, ...newGlobals2020, ...newGlobals2021 },
parserOptions: {
ecmaVersion: 14
}
},
es2024: {
globals: { ...newGlobals2015, ...newGlobals2017, ...newGlobals2020, ...newGlobals2021 },
parserOptions: {
ecmaVersion: 15
}
},
// Platforms
browser: {
globals: globals.browser
},
node: {
globals: globals.node,
parserOptions: {
ecmaFeatures: {
globalReturn: true
}
}
},
"shared-node-browser": {
globals: globals["shared-node-browser"]
},
worker: {
globals: globals.worker
},
serviceworker: {
globals: globals.serviceworker
},
// Frameworks
commonjs: {
globals: globals.commonjs,
parserOptions: {
ecmaFeatures: {
globalReturn: true
}
}
},
amd: {
globals: globals.amd
},
mocha: {
globals: globals.mocha
},
jasmine: {
globals: globals.jasmine
},
jest: {
globals: globals.jest
},
phantomjs: {
globals: globals.phantomjs
},
jquery: {
globals: globals.jquery
},
qunit: {
globals: globals.qunit
},
prototypejs: {
globals: globals.prototypejs
},
shelljs: {
globals: globals.shelljs
},
meteor: {
globals: globals.meteor
},
mongo: {
globals: globals.mongo
},
protractor: {
globals: globals.protractor
},
applescript: {
globals: globals.applescript
},
nashorn: {
globals: globals.nashorn
},
atomtest: {
globals: globals.atomtest
},
embertest: {
globals: globals.embertest
},
webextensions: {
globals: globals.webextensions
},
greasemonkey: {
globals: globals.greasemonkey
}
}));

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/**
* @fileoverview This file contains the core types for ESLint. It was initially extracted
* from the `@types/eslint__eslintrc` package.
*/
/*
* MIT License
* Copyright (c) Microsoft Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE
*/
import type { Linter } from "eslint";
/**
* A compatibility class for working with configs.
*/
export class FlatCompat {
constructor({
baseDirectory,
resolvePluginsRelativeTo,
recommendedConfig,
allConfig,
}?: {
/**
* default: process.cwd()
*/
baseDirectory?: string;
resolvePluginsRelativeTo?: string;
recommendedConfig?: Linter.LegacyConfig;
allConfig?: Linter.LegacyConfig;
});
/**
* Translates an ESLintRC-style config into a flag-config-style config.
* @param eslintrcConfig The ESLintRC-style config object.
* @returns A flag-config-style config object.
*/
config(eslintrcConfig: Linter.LegacyConfig): Linter.Config[];
/**
* Translates the `env` section of an ESLintRC-style config.
* @param envConfig The `env` section of an ESLintRC config.
* @returns An array of flag-config objects representing the environments.
*/
env(envConfig: { [name: string]: boolean }): Linter.Config[];
/**
* Translates the `extends` section of an ESLintRC-style config.
* @param configsToExtend The names of the configs to load.
* @returns An array of flag-config objects representing the config.
*/
extends(...configsToExtend: string[]): Linter.Config[];
/**
* Translates the `plugins` section of an ESLintRC-style config.
* @param plugins The names of the plugins to load.
* @returns An array of flag-config objects representing the plugins.
*/
plugins(...plugins: string[]): Linter.Config[];
}

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/**
* @fileoverview `CascadingConfigArrayFactory` class.
*
* `CascadingConfigArrayFactory` class has a responsibility:
*
* 1. Handles cascading of config files.
*
* It provides two methods:
*
* - `getConfigArrayForFile(filePath)`
* Get the corresponded configuration of a given file. This method doesn't
* throw even if the given file didn't exist.
* - `clearCache()`
* Clear the internal cache. You have to call this method when
* `additionalPluginPool` was updated if `baseConfig` or `cliConfig` depends
* on the additional plugins. (`CLIEngine#addPlugin()` method calls this.)
*
* @author Toru Nagashima <https://github.com/mysticatea>
*/
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
import debugOrig from "debug";
import os from "node:os";
import path from "node:path";
import { ConfigArrayFactory } from "./config-array-factory.js";
import {
ConfigArray,
ConfigDependency,
IgnorePattern
} from "./config-array/index.js";
import ConfigValidator from "./shared/config-validator.js";
import { emitDeprecationWarning } from "./shared/deprecation-warnings.js";
const debug = debugOrig("eslintrc:cascading-config-array-factory");
//------------------------------------------------------------------------------
// Helpers
//------------------------------------------------------------------------------
// Define types for VSCode IntelliSense.
/** @typedef {import("./shared/types").ConfigData} ConfigData */
/** @typedef {import("./shared/types").Parser} Parser */
/** @typedef {import("./shared/types").Plugin} Plugin */
/** @typedef {import("./shared/types").Rule} Rule */
/** @typedef {ReturnType<ConfigArrayFactory["create"]>} ConfigArray */
/**
* @typedef {Object} CascadingConfigArrayFactoryOptions
* @property {Map<string,Plugin>} [additionalPluginPool] The map for additional plugins.
* @property {ConfigData} [baseConfig] The config by `baseConfig` option.
* @property {ConfigData} [cliConfig] The config by CLI options (`--env`, `--global`, `--ignore-pattern`, `--parser`, `--parser-options`, `--plugin`, and `--rule`). CLI options overwrite the setting in config files.
* @property {string} [cwd] The base directory to start lookup.
* @property {string} [ignorePath] The path to the alternative file of `.eslintignore`.
* @property {string[]} [rulePaths] The value of `--rulesdir` option.
* @property {string} [specificConfigPath] The value of `--config` option.
* @property {boolean} [useEslintrc] if `false` then it doesn't load config files.
* @property {Function} loadRules The function to use to load rules.
* @property {Map<string,Rule>} builtInRules The rules that are built in to ESLint.
* @property {Object} [resolver=ModuleResolver] The module resolver object.
* @property {string} eslintAllPath The path to the definitions for eslint:all.
* @property {Function} getEslintAllConfig Returns the config data for eslint:all.
* @property {string} eslintRecommendedPath The path to the definitions for eslint:recommended.
* @property {Function} getEslintRecommendedConfig Returns the config data for eslint:recommended.
*/
/**
* @typedef {Object} CascadingConfigArrayFactoryInternalSlots
* @property {ConfigArray} baseConfigArray The config array of `baseConfig` option.
* @property {ConfigData} baseConfigData The config data of `baseConfig` option. This is used to reset `baseConfigArray`.
* @property {ConfigArray} cliConfigArray The config array of CLI options.
* @property {ConfigData} cliConfigData The config data of CLI options. This is used to reset `cliConfigArray`.
* @property {ConfigArrayFactory} configArrayFactory The factory for config arrays.
* @property {Map<string, ConfigArray>} configCache The cache from directory paths to config arrays.
* @property {string} cwd The base directory to start lookup.
* @property {WeakMap<ConfigArray, ConfigArray>} finalizeCache The cache from config arrays to finalized config arrays.
* @property {string} [ignorePath] The path to the alternative file of `.eslintignore`.
* @property {string[]|null} rulePaths The value of `--rulesdir` option. This is used to reset `baseConfigArray`.
* @property {string|null} specificConfigPath The value of `--config` option. This is used to reset `cliConfigArray`.
* @property {boolean} useEslintrc if `false` then it doesn't load config files.
* @property {Function} loadRules The function to use to load rules.
* @property {Map<string,Rule>} builtInRules The rules that are built in to ESLint.
* @property {Object} [resolver=ModuleResolver] The module resolver object.
* @property {string} eslintAllPath The path to the definitions for eslint:all.
* @property {Function} getEslintAllConfig Returns the config data for eslint:all.
* @property {string} eslintRecommendedPath The path to the definitions for eslint:recommended.
* @property {Function} getEslintRecommendedConfig Returns the config data for eslint:recommended.
*/
/** @type {WeakMap<CascadingConfigArrayFactory, CascadingConfigArrayFactoryInternalSlots>} */
const internalSlotsMap = new WeakMap();
/**
* Create the config array from `baseConfig` and `rulePaths`.
* @param {CascadingConfigArrayFactoryInternalSlots} slots The slots.
* @returns {ConfigArray} The config array of the base configs.
*/
function createBaseConfigArray({
configArrayFactory,
baseConfigData,
rulePaths,
cwd,
loadRules
}) {
const baseConfigArray = configArrayFactory.create(
baseConfigData,
{ name: "BaseConfig" }
);
/*
* Create the config array element for the default ignore patterns.
* This element has `ignorePattern` property that ignores the default
* patterns in the current working directory.
*/
baseConfigArray.unshift(configArrayFactory.create(
{ ignorePatterns: IgnorePattern.DefaultPatterns },
{ name: "DefaultIgnorePattern" }
)[0]);
/*
* Load rules `--rulesdir` option as a pseudo plugin.
* Use a pseudo plugin to define rules of `--rulesdir`, so we can validate
* the rule's options with only information in the config array.
*/
if (rulePaths && rulePaths.length > 0) {
baseConfigArray.push({
type: "config",
name: "--rulesdir",
filePath: "",
plugins: {
"": new ConfigDependency({
definition: {
rules: rulePaths.reduce(
(map, rulesPath) => Object.assign(
map,
loadRules(rulesPath, cwd)
),
{}
)
},
filePath: "",
id: "",
importerName: "--rulesdir",
importerPath: ""
})
}
});
}
return baseConfigArray;
}
/**
* Create the config array from CLI options.
* @param {CascadingConfigArrayFactoryInternalSlots} slots The slots.
* @returns {ConfigArray} The config array of the base configs.
*/
function createCLIConfigArray({
cliConfigData,
configArrayFactory,
cwd,
ignorePath,
specificConfigPath
}) {
const cliConfigArray = configArrayFactory.create(
cliConfigData,
{ name: "CLIOptions" }
);
cliConfigArray.unshift(
...(ignorePath
? configArrayFactory.loadESLintIgnore(ignorePath)
: configArrayFactory.loadDefaultESLintIgnore())
);
if (specificConfigPath) {
cliConfigArray.unshift(
...configArrayFactory.loadFile(
specificConfigPath,
{ name: "--config", basePath: cwd }
)
);
}
return cliConfigArray;
}
/**
* The error type when there are files matched by a glob, but all of them have been ignored.
*/
class ConfigurationNotFoundError extends Error {
/**
* @param {string} directoryPath The directory path.
*/
constructor(directoryPath) {
super(`No ESLint configuration found in ${directoryPath}.`);
this.messageTemplate = "no-config-found";
this.messageData = { directoryPath };
}
}
/**
* This class provides the functionality that enumerates every file which is
* matched by given glob patterns and that configuration.
*/
class CascadingConfigArrayFactory {
/**
* Initialize this enumerator.
* @param {CascadingConfigArrayFactoryOptions} options The options.
*/
constructor({
additionalPluginPool = new Map(),
baseConfig: baseConfigData = null,
cliConfig: cliConfigData = null,
cwd = process.cwd(),
ignorePath,
resolvePluginsRelativeTo,
rulePaths = [],
specificConfigPath = null,
useEslintrc = true,
builtInRules = new Map(),
loadRules,
resolver,
eslintRecommendedPath,
getEslintRecommendedConfig,
eslintAllPath,
getEslintAllConfig
} = {}) {
const configArrayFactory = new ConfigArrayFactory({
additionalPluginPool,
cwd,
resolvePluginsRelativeTo,
builtInRules,
resolver,
eslintRecommendedPath,
getEslintRecommendedConfig,
eslintAllPath,
getEslintAllConfig
});
internalSlotsMap.set(this, {
baseConfigArray: createBaseConfigArray({
baseConfigData,
configArrayFactory,
cwd,
rulePaths,
loadRules
}),
baseConfigData,
cliConfigArray: createCLIConfigArray({
cliConfigData,
configArrayFactory,
cwd,
ignorePath,
specificConfigPath
}),
cliConfigData,
configArrayFactory,
configCache: new Map(),
cwd,
finalizeCache: new WeakMap(),
ignorePath,
rulePaths,
specificConfigPath,
useEslintrc,
builtInRules,
loadRules
});
}
/**
* The path to the current working directory.
* This is used by tests.
* @type {string}
*/
get cwd() {
const { cwd } = internalSlotsMap.get(this);
return cwd;
}
/**
* Get the config array of a given file.
* If `filePath` was not given, it returns the config which contains only
* `baseConfigData` and `cliConfigData`.
* @param {string} [filePath] The file path to a file.
* @param {Object} [options] The options.
* @param {boolean} [options.ignoreNotFoundError] If `true` then it doesn't throw `ConfigurationNotFoundError`.
* @returns {ConfigArray} The config array of the file.
*/
getConfigArrayForFile(filePath, { ignoreNotFoundError = false } = {}) {
const {
baseConfigArray,
cliConfigArray,
cwd
} = internalSlotsMap.get(this);
if (!filePath) {
return new ConfigArray(...baseConfigArray, ...cliConfigArray);
}
const directoryPath = path.dirname(path.resolve(cwd, filePath));
debug(`Load config files for ${directoryPath}.`);
return this._finalizeConfigArray(
this._loadConfigInAncestors(directoryPath),
directoryPath,
ignoreNotFoundError
);
}
/**
* Set the config data to override all configs.
* Require to call `clearCache()` method after this method is called.
* @param {ConfigData} configData The config data to override all configs.
* @returns {void}
*/
setOverrideConfig(configData) {
const slots = internalSlotsMap.get(this);
slots.cliConfigData = configData;
}
/**
* Clear config cache.
* @returns {void}
*/
clearCache() {
const slots = internalSlotsMap.get(this);
slots.baseConfigArray = createBaseConfigArray(slots);
slots.cliConfigArray = createCLIConfigArray(slots);
slots.configCache.clear();
}
/**
* Load and normalize config files from the ancestor directories.
* @param {string} directoryPath The path to a leaf directory.
* @param {boolean} configsExistInSubdirs `true` if configurations exist in subdirectories.
* @returns {ConfigArray} The loaded config.
* @throws {Error} If a config file is invalid.
* @private
*/
_loadConfigInAncestors(directoryPath, configsExistInSubdirs = false) {
const {
baseConfigArray,
configArrayFactory,
configCache,
cwd,
useEslintrc
} = internalSlotsMap.get(this);
if (!useEslintrc) {
return baseConfigArray;
}
let configArray = configCache.get(directoryPath);
// Hit cache.
if (configArray) {
debug(`Cache hit: ${directoryPath}.`);
return configArray;
}
debug(`No cache found: ${directoryPath}.`);
const homePath = os.homedir();
// Consider this is root.
if (directoryPath === homePath && cwd !== homePath) {
debug("Stop traversing because of considered root.");
if (configsExistInSubdirs) {
const filePath = ConfigArrayFactory.getPathToConfigFileInDirectory(directoryPath);
if (filePath) {
emitDeprecationWarning(
filePath,
"ESLINT_PERSONAL_CONFIG_SUPPRESS"
);
}
}
return this._cacheConfig(directoryPath, baseConfigArray);
}
// Load the config on this directory.
try {
configArray = configArrayFactory.loadInDirectory(directoryPath);
} catch (error) {
/* istanbul ignore next */
if (error.code === "EACCES") {
debug("Stop traversing because of 'EACCES' error.");
return this._cacheConfig(directoryPath, baseConfigArray);
}
throw error;
}
if (configArray.length > 0 && configArray.isRoot()) {
debug("Stop traversing because of 'root:true'.");
configArray.unshift(...baseConfigArray);
return this._cacheConfig(directoryPath, configArray);
}
// Load from the ancestors and merge it.
const parentPath = path.dirname(directoryPath);
const parentConfigArray = parentPath && parentPath !== directoryPath
? this._loadConfigInAncestors(
parentPath,
configsExistInSubdirs || configArray.length > 0
)
: baseConfigArray;
if (configArray.length > 0) {
configArray.unshift(...parentConfigArray);
} else {
configArray = parentConfigArray;
}
// Cache and return.
return this._cacheConfig(directoryPath, configArray);
}
/**
* Freeze and cache a given config.
* @param {string} directoryPath The path to a directory as a cache key.
* @param {ConfigArray} configArray The config array as a cache value.
* @returns {ConfigArray} The `configArray` (frozen).
*/
_cacheConfig(directoryPath, configArray) {
const { configCache } = internalSlotsMap.get(this);
Object.freeze(configArray);
configCache.set(directoryPath, configArray);
return configArray;
}
/**
* Finalize a given config array.
* Concatenate `--config` and other CLI options.
* @param {ConfigArray} configArray The parent config array.
* @param {string} directoryPath The path to the leaf directory to find config files.
* @param {boolean} ignoreNotFoundError If `true` then it doesn't throw `ConfigurationNotFoundError`.
* @returns {ConfigArray} The loaded config.
* @throws {Error} If a config file is invalid.
* @private
*/
_finalizeConfigArray(configArray, directoryPath, ignoreNotFoundError) {
const {
cliConfigArray,
configArrayFactory,
finalizeCache,
useEslintrc,
builtInRules
} = internalSlotsMap.get(this);
let finalConfigArray = finalizeCache.get(configArray);
if (!finalConfigArray) {
finalConfigArray = configArray;
// Load the personal config if there are no regular config files.
if (
useEslintrc &&
configArray.every(c => !c.filePath) &&
cliConfigArray.every(c => !c.filePath) // `--config` option can be a file.
) {
const homePath = os.homedir();
debug("Loading the config file of the home directory:", homePath);
const personalConfigArray = configArrayFactory.loadInDirectory(
homePath,
{ name: "PersonalConfig" }
);
if (
personalConfigArray.length > 0 &&
!directoryPath.startsWith(homePath)
) {
const lastElement =
personalConfigArray.at(-1);
emitDeprecationWarning(
lastElement.filePath,
"ESLINT_PERSONAL_CONFIG_LOAD"
);
}
finalConfigArray = finalConfigArray.concat(personalConfigArray);
}
// Apply CLI options.
if (cliConfigArray.length > 0) {
finalConfigArray = finalConfigArray.concat(cliConfigArray);
}
// Validate rule settings and environments.
const validator = new ConfigValidator({
builtInRules
});
validator.validateConfigArray(finalConfigArray);
// Cache it.
Object.freeze(finalConfigArray);
finalizeCache.set(configArray, finalConfigArray);
debug(
"Configuration was determined: %o on %s",
finalConfigArray,
directoryPath
);
}
// At least one element (the default ignore patterns) exists.
if (!ignoreNotFoundError && useEslintrc && finalConfigArray.length <= 1) {
throw new ConfigurationNotFoundError(directoryPath);
}
return finalConfigArray;
}
}
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
export { CascadingConfigArrayFactory };

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/**
* @fileoverview `ConfigArray` class.
*
* `ConfigArray` class expresses the full of a configuration. It has the entry
* config file, base config files that were extended, loaded parsers, and loaded
* plugins.
*
* `ConfigArray` class provides three properties and two methods.
*
* - `pluginEnvironments`
* - `pluginProcessors`
* - `pluginRules`
* The `Map` objects that contain the members of all plugins that this
* config array contains. Those map objects don't have mutation methods.
* Those keys are the member ID such as `pluginId/memberName`.
* - `isRoot()`
* If `true` then this configuration has `root:true` property.
* - `extractConfig(filePath)`
* Extract the final configuration for a given file. This means merging
* every config array element which that `criteria` property matched. The
* `filePath` argument must be an absolute path.
*
* `ConfigArrayFactory` provides the loading logic of config files.
*
* @author Toru Nagashima <https://github.com/mysticatea>
*/
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
import { ExtractedConfig } from "./extracted-config.js";
import { IgnorePattern } from "./ignore-pattern.js";
//------------------------------------------------------------------------------
// Helpers
//------------------------------------------------------------------------------
// Define types for VSCode IntelliSense.
/** @typedef {import("../../shared/types").Environment} Environment */
/** @typedef {import("../../shared/types").GlobalConf} GlobalConf */
/** @typedef {import("../../shared/types").RuleConf} RuleConf */
/** @typedef {import("../../shared/types").Rule} Rule */
/** @typedef {import("../../shared/types").Plugin} Plugin */
/** @typedef {import("../../shared/types").Processor} Processor */
/** @typedef {import("./config-dependency").DependentParser} DependentParser */
/** @typedef {import("./config-dependency").DependentPlugin} DependentPlugin */
/** @typedef {import("./override-tester")["OverrideTester"]} OverrideTester */
/**
* @typedef {Object} ConfigArrayElement
* @property {string} name The name of this config element.
* @property {string} filePath The path to the source file of this config element.
* @property {InstanceType<OverrideTester>|null} criteria The tester for the `files` and `excludedFiles` of this config element.
* @property {Record<string, boolean>|undefined} env The environment settings.
* @property {Record<string, GlobalConf>|undefined} globals The global variable settings.
* @property {IgnorePattern|undefined} ignorePattern The ignore patterns.
* @property {boolean|undefined} noInlineConfig The flag that disables directive comments.
* @property {DependentParser|undefined} parser The parser loader.
* @property {Object|undefined} parserOptions The parser options.
* @property {Record<string, DependentPlugin>|undefined} plugins The plugin loaders.
* @property {string|undefined} processor The processor name to refer plugin's processor.
* @property {boolean|undefined} reportUnusedDisableDirectives The flag to report unused `eslint-disable` comments.
* @property {boolean|undefined} root The flag to express root.
* @property {Record<string, RuleConf>|undefined} rules The rule settings
* @property {Object|undefined} settings The shared settings.
* @property {"config" | "ignore" | "implicit-processor"} type The element type.
*/
/**
* @typedef {Object} ConfigArrayInternalSlots
* @property {Map<string, ExtractedConfig>} cache The cache to extract configs.
* @property {ReadonlyMap<string, Environment>|null} envMap The map from environment ID to environment definition.
* @property {ReadonlyMap<string, Processor>|null} processorMap The map from processor ID to environment definition.
* @property {ReadonlyMap<string, Rule>|null} ruleMap The map from rule ID to rule definition.
*/
/** @type {WeakMap<ConfigArray, ConfigArrayInternalSlots>} */
const internalSlotsMap = new class extends WeakMap {
get(key) {
let value = super.get(key);
if (!value) {
value = {
cache: new Map(),
envMap: null,
processorMap: null,
ruleMap: null
};
super.set(key, value);
}
return value;
}
}();
/**
* Get the indices which are matched to a given file.
* @param {ConfigArrayElement[]} elements The elements.
* @param {string} filePath The path to a target file.
* @returns {number[]} The indices.
*/
function getMatchedIndices(elements, filePath) {
const indices = [];
for (let i = elements.length - 1; i >= 0; --i) {
const element = elements[i];
if (!element.criteria || (filePath && element.criteria.test(filePath))) {
indices.push(i);
}
}
return indices;
}
/**
* Check if a value is a non-null object.
* @param {any} x The value to check.
* @returns {boolean} `true` if the value is a non-null object.
*/
function isNonNullObject(x) {
return typeof x === "object" && x !== null;
}
/**
* Merge two objects.
*
* Assign every property values of `y` to `x` if `x` doesn't have the property.
* If `x`'s property value is an object, it does recursive.
* @param {Object} target The destination to merge
* @param {Object|undefined} source The source to merge.
* @returns {void}
*/
function mergeWithoutOverwrite(target, source) {
if (!isNonNullObject(source)) {
return;
}
for (const key of Object.keys(source)) {
if (key === "__proto__") {
continue;
}
if (isNonNullObject(target[key])) {
mergeWithoutOverwrite(target[key], source[key]);
} else if (target[key] === void 0) {
if (isNonNullObject(source[key])) {
target[key] = Array.isArray(source[key]) ? [] : {};
mergeWithoutOverwrite(target[key], source[key]);
} else if (source[key] !== void 0) {
target[key] = source[key];
}
}
}
}
/**
* The error for plugin conflicts.
*/
class PluginConflictError extends Error {
/**
* Initialize this error object.
* @param {string} pluginId The plugin ID.
* @param {{filePath:string, importerName:string}[]} plugins The resolved plugins.
*/
constructor(pluginId, plugins) {
super(`Plugin "${pluginId}" was conflicted between ${plugins.map(p => `"${p.importerName}"`).join(" and ")}.`);
this.messageTemplate = "plugin-conflict";
this.messageData = { pluginId, plugins };
}
}
/**
* Merge plugins.
* `target`'s definition is prior to `source`'s.
* @param {Record<string, DependentPlugin>} target The destination to merge
* @param {Record<string, DependentPlugin>|undefined} source The source to merge.
* @returns {void}
* @throws {PluginConflictError} When a plugin was conflicted.
*/
function mergePlugins(target, source) {
if (!isNonNullObject(source)) {
return;
}
for (const key of Object.keys(source)) {
if (key === "__proto__") {
continue;
}
const targetValue = target[key];
const sourceValue = source[key];
// Adopt the plugin which was found at first.
if (targetValue === void 0) {
if (sourceValue.error) {
throw sourceValue.error;
}
target[key] = sourceValue;
} else if (sourceValue.filePath !== targetValue.filePath) {
throw new PluginConflictError(key, [
{
filePath: targetValue.filePath,
importerName: targetValue.importerName
},
{
filePath: sourceValue.filePath,
importerName: sourceValue.importerName
}
]);
}
}
}
/**
* Merge rule configs.
* `target`'s definition is prior to `source`'s.
* @param {Record<string, Array>} target The destination to merge
* @param {Record<string, RuleConf>|undefined} source The source to merge.
* @returns {void}
*/
function mergeRuleConfigs(target, source) {
if (!isNonNullObject(source)) {
return;
}
for (const key of Object.keys(source)) {
if (key === "__proto__") {
continue;
}
const targetDef = target[key];
const sourceDef = source[key];
// Adopt the rule config which was found at first.
if (targetDef === void 0) {
if (Array.isArray(sourceDef)) {
target[key] = [...sourceDef];
} else {
target[key] = [sourceDef];
}
/*
* If the first found rule config is severity only and the current rule
* config has options, merge the severity and the options.
*/
} else if (
targetDef.length === 1 &&
Array.isArray(sourceDef) &&
sourceDef.length >= 2
) {
targetDef.push(...sourceDef.slice(1));
}
}
}
/**
* Create the extracted config.
* @param {ConfigArray} instance The config elements.
* @param {number[]} indices The indices to use.
* @returns {ExtractedConfig} The extracted config.
* @throws {Error} When a plugin is conflicted.
*/
function createConfig(instance, indices) {
const config = new ExtractedConfig();
const ignorePatterns = [];
// Merge elements.
for (const index of indices) {
const element = instance[index];
// Adopt the parser which was found at first.
if (!config.parser && element.parser) {
if (element.parser.error) {
throw element.parser.error;
}
config.parser = element.parser;
}
// Adopt the processor which was found at first.
if (!config.processor && element.processor) {
config.processor = element.processor;
}
// Adopt the noInlineConfig which was found at first.
if (config.noInlineConfig === void 0 && element.noInlineConfig !== void 0) {
config.noInlineConfig = element.noInlineConfig;
config.configNameOfNoInlineConfig = element.name;
}
// Adopt the reportUnusedDisableDirectives which was found at first.
if (config.reportUnusedDisableDirectives === void 0 && element.reportUnusedDisableDirectives !== void 0) {
config.reportUnusedDisableDirectives = element.reportUnusedDisableDirectives;
}
// Collect ignorePatterns
if (element.ignorePattern) {
ignorePatterns.push(element.ignorePattern);
}
// Merge others.
mergeWithoutOverwrite(config.env, element.env);
mergeWithoutOverwrite(config.globals, element.globals);
mergeWithoutOverwrite(config.parserOptions, element.parserOptions);
mergeWithoutOverwrite(config.settings, element.settings);
mergePlugins(config.plugins, element.plugins);
mergeRuleConfigs(config.rules, element.rules);
}
// Create the predicate function for ignore patterns.
if (ignorePatterns.length > 0) {
config.ignores = IgnorePattern.createIgnore(ignorePatterns.reverse());
}
return config;
}
/**
* Collect definitions.
* @template T, U
* @param {string} pluginId The plugin ID for prefix.
* @param {Record<string,T>} defs The definitions to collect.
* @param {Map<string, U>} map The map to output.
* @returns {void}
*/
function collect(pluginId, defs, map) {
if (defs) {
const prefix = pluginId && `${pluginId}/`;
for (const [key, value] of Object.entries(defs)) {
map.set(`${prefix}${key}`, value);
}
}
}
/**
* Delete the mutation methods from a given map.
* @param {Map<any, any>} map The map object to delete.
* @returns {void}
*/
function deleteMutationMethods(map) {
Object.defineProperties(map, {
clear: { configurable: true, value: void 0 },
delete: { configurable: true, value: void 0 },
set: { configurable: true, value: void 0 }
});
}
/**
* Create `envMap`, `processorMap`, `ruleMap` with the plugins in the config array.
* @param {ConfigArrayElement[]} elements The config elements.
* @param {ConfigArrayInternalSlots} slots The internal slots.
* @returns {void}
*/
function initPluginMemberMaps(elements, slots) {
const processed = new Set();
slots.envMap = new Map();
slots.processorMap = new Map();
slots.ruleMap = new Map();
for (const element of elements) {
if (!element.plugins) {
continue;
}
for (const [pluginId, value] of Object.entries(element.plugins)) {
const plugin = value.definition;
if (!plugin || processed.has(pluginId)) {
continue;
}
processed.add(pluginId);
collect(pluginId, plugin.environments, slots.envMap);
collect(pluginId, plugin.processors, slots.processorMap);
collect(pluginId, plugin.rules, slots.ruleMap);
}
}
deleteMutationMethods(slots.envMap);
deleteMutationMethods(slots.processorMap);
deleteMutationMethods(slots.ruleMap);
}
/**
* Create `envMap`, `processorMap`, `ruleMap` with the plugins in the config array.
* @param {ConfigArray} instance The config elements.
* @returns {ConfigArrayInternalSlots} The extracted config.
*/
function ensurePluginMemberMaps(instance) {
const slots = internalSlotsMap.get(instance);
if (!slots.ruleMap) {
initPluginMemberMaps(instance, slots);
}
return slots;
}
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
/**
* The Config Array.
*
* `ConfigArray` instance contains all settings, parsers, and plugins.
* You need to call `ConfigArray#extractConfig(filePath)` method in order to
* extract, merge and get only the config data which is related to an arbitrary
* file.
* @extends {Array<ConfigArrayElement>}
*/
class ConfigArray extends Array {
/**
* Get the plugin environments.
* The returned map cannot be mutated.
* @type {ReadonlyMap<string, Environment>} The plugin environments.
*/
get pluginEnvironments() {
return ensurePluginMemberMaps(this).envMap;
}
/**
* Get the plugin processors.
* The returned map cannot be mutated.
* @type {ReadonlyMap<string, Processor>} The plugin processors.
*/
get pluginProcessors() {
return ensurePluginMemberMaps(this).processorMap;
}
/**
* Get the plugin rules.
* The returned map cannot be mutated.
* @returns {ReadonlyMap<string, Rule>} The plugin rules.
*/
get pluginRules() {
return ensurePluginMemberMaps(this).ruleMap;
}
/**
* Check if this config has `root` flag.
* @returns {boolean} `true` if this config array is root.
*/
isRoot() {
for (let i = this.length - 1; i >= 0; --i) {
const root = this[i].root;
if (typeof root === "boolean") {
return root;
}
}
return false;
}
/**
* Extract the config data which is related to a given file.
* @param {string} filePath The absolute path to the target file.
* @returns {ExtractedConfig} The extracted config data.
*/
extractConfig(filePath) {
const { cache } = internalSlotsMap.get(this);
const indices = getMatchedIndices(this, filePath);
const cacheKey = indices.join(",");
if (!cache.has(cacheKey)) {
cache.set(cacheKey, createConfig(this, indices));
}
return cache.get(cacheKey);
}
/**
* Check if a given path is an additional lint target.
* @param {string} filePath The absolute path to the target file.
* @returns {boolean} `true` if the file is an additional lint target.
*/
isAdditionalTargetPath(filePath) {
for (const { criteria, type } of this) {
if (
type === "config" &&
criteria &&
!criteria.endsWithWildcard &&
criteria.test(filePath)
) {
return true;
}
}
return false;
}
}
/**
* Get the used extracted configs.
* CLIEngine will use this method to collect used deprecated rules.
* @param {ConfigArray} instance The config array object to get.
* @returns {ExtractedConfig[]} The used extracted configs.
* @private
*/
function getUsedExtractedConfigs(instance) {
const { cache } = internalSlotsMap.get(instance);
return Array.from(cache.values());
}
export {
ConfigArray,
getUsedExtractedConfigs
};

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/**
* @fileoverview `ConfigDependency` class.
*
* `ConfigDependency` class expresses a loaded parser or plugin.
*
* If the parser or plugin was loaded successfully, it has `definition` property
* and `filePath` property. Otherwise, it has `error` property.
*
* When `JSON.stringify()` converted a `ConfigDependency` object to a JSON, it
* omits `definition` property.
*
* `ConfigArrayFactory` creates `ConfigDependency` objects when it loads parsers
* or plugins.
*
* @author Toru Nagashima <https://github.com/mysticatea>
*/
import util from "node:util";
/**
* The class is to store parsers or plugins.
* This class hides the loaded object from `JSON.stringify()` and `console.log`.
* @template T
*/
class ConfigDependency {
/**
* Initialize this instance.
* @param {Object} data The dependency data.
* @param {T} [data.definition] The dependency if the loading succeeded.
* @param {T} [data.original] The original, non-normalized dependency if the loading succeeded.
* @param {Error} [data.error] The error object if the loading failed.
* @param {string} [data.filePath] The actual path to the dependency if the loading succeeded.
* @param {string} data.id The ID of this dependency.
* @param {string} data.importerName The name of the config file which loads this dependency.
* @param {string} data.importerPath The path to the config file which loads this dependency.
*/
constructor({
definition = null,
original = null,
error = null,
filePath = null,
id,
importerName,
importerPath
}) {
/**
* The loaded dependency if the loading succeeded.
* @type {T|null}
*/
this.definition = definition;
/**
* The original dependency as loaded directly from disk if the loading succeeded.
* @type {T|null}
*/
this.original = original;
/**
* The error object if the loading failed.
* @type {Error|null}
*/
this.error = error;
/**
* The loaded dependency if the loading succeeded.
* @type {string|null}
*/
this.filePath = filePath;
/**
* The ID of this dependency.
* @type {string}
*/
this.id = id;
/**
* The name of the config file which loads this dependency.
* @type {string}
*/
this.importerName = importerName;
/**
* The path to the config file which loads this dependency.
* @type {string}
*/
this.importerPath = importerPath;
}
/**
* Converts this instance to a JSON compatible object.
* @returns {Object} a JSON compatible object.
*/
toJSON() {
const obj = this[util.inspect.custom]();
// Display `error.message` (`Error#message` is unenumerable).
if (obj.error instanceof Error) {
obj.error = { ...obj.error, message: obj.error.message };
}
return obj;
}
/**
* Custom inspect method for Node.js `console.log()`.
* @returns {Object} an object to display by `console.log()`.
*/
[util.inspect.custom]() {
const {
definition: _ignore1, // eslint-disable-line no-unused-vars -- needed to make `obj` correct
original: _ignore2, // eslint-disable-line no-unused-vars -- needed to make `obj` correct
...obj
} = this;
return obj;
}
}
/** @typedef {ConfigDependency<import("../../shared/types").Parser>} DependentParser */
/** @typedef {ConfigDependency<import("../../shared/types").Plugin>} DependentPlugin */
export { ConfigDependency };

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/**
* @fileoverview `ExtractedConfig` class.
*
* `ExtractedConfig` class expresses a final configuration for a specific file.
*
* It provides one method.
*
* - `toCompatibleObjectAsConfigFileContent()`
* Convert this configuration to the compatible object as the content of
* config files. It converts the loaded parser and plugins to strings.
* `CLIEngine#getConfigForFile(filePath)` method uses this method.
*
* `ConfigArray#extractConfig(filePath)` creates a `ExtractedConfig` instance.
*
* @author Toru Nagashima <https://github.com/mysticatea>
*/
import { IgnorePattern } from "./ignore-pattern.js";
// For VSCode intellisense
/** @typedef {import("../../shared/types").ConfigData} ConfigData */
/** @typedef {import("../../shared/types").GlobalConf} GlobalConf */
/** @typedef {import("../../shared/types").SeverityConf} SeverityConf */
/** @typedef {import("./config-dependency").DependentParser} DependentParser */
/** @typedef {import("./config-dependency").DependentPlugin} DependentPlugin */
/**
* Check if `xs` starts with `ys`.
* @template T
* @param {T[]} xs The array to check.
* @param {T[]} ys The array that may be the first part of `xs`.
* @returns {boolean} `true` if `xs` starts with `ys`.
*/
function startsWith(xs, ys) {
return xs.length >= ys.length && ys.every((y, i) => y === xs[i]);
}
/**
* The class for extracted config data.
*/
class ExtractedConfig {
constructor() {
/**
* The config name what `noInlineConfig` setting came from.
* @type {string}
*/
this.configNameOfNoInlineConfig = "";
/**
* Environments.
* @type {Record<string, boolean>}
*/
this.env = {};
/**
* Global variables.
* @type {Record<string, GlobalConf>}
*/
this.globals = {};
/**
* The glob patterns that ignore to lint.
* @type {(((filePath:string, dot?:boolean) => boolean) & { basePath:string; patterns:string[] }) | undefined}
*/
this.ignores = void 0;
/**
* The flag that disables directive comments.
* @type {boolean|undefined}
*/
this.noInlineConfig = void 0;
/**
* Parser definition.
* @type {DependentParser|null}
*/
this.parser = null;
/**
* Options for the parser.
* @type {Object}
*/
this.parserOptions = {};
/**
* Plugin definitions.
* @type {Record<string, DependentPlugin>}
*/
this.plugins = {};
/**
* Processor ID.
* @type {string|null}
*/
this.processor = null;
/**
* The flag that reports unused `eslint-disable` directive comments.
* @type {boolean|undefined}
*/
this.reportUnusedDisableDirectives = void 0;
/**
* Rule settings.
* @type {Record<string, [SeverityConf, ...any[]]>}
*/
this.rules = {};
/**
* Shared settings.
* @type {Object}
*/
this.settings = {};
}
/**
* Convert this config to the compatible object as a config file content.
* @returns {ConfigData} The converted object.
*/
toCompatibleObjectAsConfigFileContent() {
const {
/* eslint-disable no-unused-vars -- needed to make `config` correct */
configNameOfNoInlineConfig: _ignore1,
processor: _ignore2,
/* eslint-enable no-unused-vars -- needed to make `config` correct */
ignores,
...config
} = this;
config.parser = config.parser && config.parser.filePath;
config.plugins = Object.keys(config.plugins).filter(Boolean).reverse();
config.ignorePatterns = ignores ? ignores.patterns : [];
// Strip the default patterns from `ignorePatterns`.
if (startsWith(config.ignorePatterns, IgnorePattern.DefaultPatterns)) {
config.ignorePatterns =
config.ignorePatterns.slice(IgnorePattern.DefaultPatterns.length);
}
return config;
}
}
export { ExtractedConfig };

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@@ -0,0 +1,239 @@
/**
* @fileoverview `IgnorePattern` class.
*
* `IgnorePattern` class has the set of glob patterns and the base path.
*
* It provides two static methods.
*
* - `IgnorePattern.createDefaultIgnore(cwd)`
* Create the default predicate function.
* - `IgnorePattern.createIgnore(ignorePatterns)`
* Create the predicate function from multiple `IgnorePattern` objects.
*
* It provides two properties and a method.
*
* - `patterns`
* The glob patterns that ignore to lint.
* - `basePath`
* The base path of the glob patterns. If absolute paths existed in the
* glob patterns, those are handled as relative paths to the base path.
* - `getPatternsRelativeTo(basePath)`
* Get `patterns` as modified for a given base path. It modifies the
* absolute paths in the patterns as prepending the difference of two base
* paths.
*
* `ConfigArrayFactory` creates `IgnorePattern` objects when it processes
* `ignorePatterns` properties.
*
* @author Toru Nagashima <https://github.com/mysticatea>
*/
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
import assert from "node:assert";
import path from "node:path";
import ignore from "ignore";
import debugOrig from "debug";
const debug = debugOrig("eslintrc:ignore-pattern");
/** @typedef {ReturnType<import("ignore").default>} Ignore */
//------------------------------------------------------------------------------
// Helpers
//------------------------------------------------------------------------------
/**
* Get the path to the common ancestor directory of given paths.
* @param {string[]} sourcePaths The paths to calculate the common ancestor.
* @returns {string} The path to the common ancestor directory.
*/
function getCommonAncestorPath(sourcePaths) {
let result = sourcePaths[0];
for (let i = 1; i < sourcePaths.length; ++i) {
const a = result;
const b = sourcePaths[i];
// Set the shorter one (it's the common ancestor if one includes the other).
result = a.length < b.length ? a : b;
// Set the common ancestor.
for (let j = 0, lastSepPos = 0; j < a.length && j < b.length; ++j) {
if (a[j] !== b[j]) {
result = a.slice(0, lastSepPos);
break;
}
if (a[j] === path.sep) {
lastSepPos = j;
}
}
}
let resolvedResult = result || path.sep;
// if Windows common ancestor is root of drive must have trailing slash to be absolute.
if (resolvedResult && resolvedResult.endsWith(":") && process.platform === "win32") {
resolvedResult += path.sep;
}
return resolvedResult;
}
/**
* Make relative path.
* @param {string} from The source path to get relative path.
* @param {string} to The destination path to get relative path.
* @returns {string} The relative path.
*/
function relative(from, to) {
const relPath = path.relative(from, to);
if (path.sep === "/") {
return relPath;
}
return relPath.split(path.sep).join("/");
}
/**
* Get the trailing slash if existed.
* @param {string} filePath The path to check.
* @returns {string} The trailing slash if existed.
*/
function dirSuffix(filePath) {
const isDir = (
filePath.endsWith(path.sep) ||
(process.platform === "win32" && filePath.endsWith("/"))
);
return isDir ? "/" : "";
}
const DefaultPatterns = Object.freeze(["/**/node_modules/*"]);
const DotPatterns = Object.freeze([".*", "!.eslintrc.*", "!../"]);
//------------------------------------------------------------------------------
// Public
//------------------------------------------------------------------------------
/**
* Represents a set of glob patterns to ignore against a base path.
*/
class IgnorePattern {
/**
* The default patterns.
* @type {string[]}
*/
static get DefaultPatterns() {
return DefaultPatterns;
}
/**
* Create the default predicate function.
* @param {string} cwd The current working directory.
* @returns {((filePath:string, dot:boolean) => boolean) & {basePath:string; patterns:string[]}}
* The preficate function.
* The first argument is an absolute path that is checked.
* The second argument is the flag to not ignore dotfiles.
* If the predicate function returned `true`, it means the path should be ignored.
*/
static createDefaultIgnore(cwd) {
return this.createIgnore([new IgnorePattern(DefaultPatterns, cwd)]);
}
/**
* Create the predicate function from multiple `IgnorePattern` objects.
* @param {IgnorePattern[]} ignorePatterns The list of ignore patterns.
* @returns {((filePath:string, dot?:boolean) => boolean) & {basePath:string; patterns:string[]}}
* The preficate function.
* The first argument is an absolute path that is checked.
* The second argument is the flag to not ignore dotfiles.
* If the predicate function returned `true`, it means the path should be ignored.
*/
static createIgnore(ignorePatterns) {
debug("Create with: %o", ignorePatterns);
const basePath = getCommonAncestorPath(ignorePatterns.map(p => p.basePath));
const patterns = ignorePatterns.flatMap(p => p.getPatternsRelativeTo(basePath));
const ig = ignore({ allowRelativePaths: true }).add([...DotPatterns, ...patterns]);
const dotIg = ignore({ allowRelativePaths: true }).add(patterns);
debug(" processed: %o", { basePath, patterns });
return Object.assign(
(filePath, dot = false) => {
assert(path.isAbsolute(filePath), "'filePath' should be an absolute path.");
const relPathRaw = relative(basePath, filePath);
const relPath = relPathRaw && (relPathRaw + dirSuffix(filePath));
const adoptedIg = dot ? dotIg : ig;
const result = relPath !== "" && adoptedIg.ignores(relPath);
debug("Check", { filePath, dot, relativePath: relPath, result });
return result;
},
{ basePath, patterns }
);
}
/**
* Initialize a new `IgnorePattern` instance.
* @param {string[]} patterns The glob patterns that ignore to lint.
* @param {string} basePath The base path of `patterns`.
*/
constructor(patterns, basePath) {
assert(path.isAbsolute(basePath), "'basePath' should be an absolute path.");
/**
* The glob patterns that ignore to lint.
* @type {string[]}
*/
this.patterns = patterns;
/**
* The base path of `patterns`.
* @type {string}
*/
this.basePath = basePath;
/**
* If `true` then patterns which don't start with `/` will match the paths to the outside of `basePath`. Defaults to `false`.
*
* It's set `true` for `.eslintignore`, `package.json`, and `--ignore-path` for backward compatibility.
* It's `false` as-is for `ignorePatterns` property in config files.
* @type {boolean}
*/
this.loose = false;
}
/**
* Get `patterns` as modified for a given base path. It modifies the
* absolute paths in the patterns as prepending the difference of two base
* paths.
* @param {string} newBasePath The base path.
* @returns {string[]} Modifired patterns.
*/
getPatternsRelativeTo(newBasePath) {
assert(path.isAbsolute(newBasePath), "'newBasePath' should be an absolute path.");
const { basePath, loose, patterns } = this;
if (newBasePath === basePath) {
return patterns;
}
const prefix = `/${relative(newBasePath, basePath)}`;
return patterns.map(pattern => {
const negative = pattern.startsWith("!");
const head = negative ? "!" : "";
const body = negative ? pattern.slice(1) : pattern;
if (body.startsWith("/") || body.startsWith("../")) {
return `${head}${prefix}${body}`;
}
return loose ? pattern : `${head}${prefix}/**/${body}`;
});
}
}
export { IgnorePattern };

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/**
* @fileoverview `ConfigArray` class.
* @author Toru Nagashima <https://github.com/mysticatea>
*/
import { ConfigArray, getUsedExtractedConfigs } from "./config-array.js";
import { ConfigDependency } from "./config-dependency.js";
import { ExtractedConfig } from "./extracted-config.js";
import { IgnorePattern } from "./ignore-pattern.js";
import { OverrideTester } from "./override-tester.js";
export {
ConfigArray,
ConfigDependency,
ExtractedConfig,
IgnorePattern,
OverrideTester,
getUsedExtractedConfigs
};

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/**
* @fileoverview `OverrideTester` class.
*
* `OverrideTester` class handles `files` property and `excludedFiles` property
* of `overrides` config.
*
* It provides one method.
*
* - `test(filePath)`
* Test if a file path matches the pair of `files` property and
* `excludedFiles` property. The `filePath` argument must be an absolute
* path.
*
* `ConfigArrayFactory` creates `OverrideTester` objects when it processes
* `overrides` properties.
*
* @author Toru Nagashima <https://github.com/mysticatea>
*/
import assert from "node:assert";
import path from "node:path";
import util from "node:util";
import minimatch from "minimatch";
const { Minimatch } = minimatch;
const minimatchOpts = { dot: true, matchBase: true };
/**
* @typedef {Object} Pattern
* @property {InstanceType<Minimatch>[] | null} includes The positive matchers.
* @property {InstanceType<Minimatch>[] | null} excludes The negative matchers.
*/
/**
* Normalize a given pattern to an array.
* @param {string|string[]|undefined} patterns A glob pattern or an array of glob patterns.
* @returns {string[]|null} Normalized patterns.
* @private
*/
function normalizePatterns(patterns) {
if (Array.isArray(patterns)) {
return patterns.filter(Boolean);
}
if (typeof patterns === "string" && patterns) {
return [patterns];
}
return [];
}
/**
* Create the matchers of given patterns.
* @param {string[]} patterns The patterns.
* @returns {InstanceType<Minimatch>[] | null} The matchers.
*/
function toMatcher(patterns) {
if (patterns.length === 0) {
return null;
}
return patterns.map(pattern => {
if (/^\.[/\\]/u.test(pattern)) {
return new Minimatch(
pattern.slice(2),
// `./*.js` should not match with `subdir/foo.js`
{ ...minimatchOpts, matchBase: false }
);
}
return new Minimatch(pattern, minimatchOpts);
});
}
/**
* Convert a given matcher to string.
* @param {Pattern} matchers The matchers.
* @returns {string} The string expression of the matcher.
*/
function patternToJson({ includes, excludes }) {
return {
includes: includes && includes.map(m => m.pattern),
excludes: excludes && excludes.map(m => m.pattern)
};
}
/**
* The class to test given paths are matched by the patterns.
*/
class OverrideTester {
/**
* Create a tester with given criteria.
* If there are no criteria, returns `null`.
* @param {string|string[]} files The glob patterns for included files.
* @param {string|string[]} excludedFiles The glob patterns for excluded files.
* @param {string} basePath The path to the base directory to test paths.
* @returns {OverrideTester|null} The created instance or `null`.
* @throws {Error} When invalid patterns are given.
*/
static create(files, excludedFiles, basePath) {
const includePatterns = normalizePatterns(files);
const excludePatterns = normalizePatterns(excludedFiles);
let endsWithWildcard = false;
if (includePatterns.length === 0) {
return null;
}
// Rejects absolute paths or relative paths to parents.
for (const pattern of includePatterns) {
if (path.isAbsolute(pattern) || pattern.includes("..")) {
throw new Error(`Invalid override pattern (expected relative path not containing '..'): ${pattern}`);
}
if (pattern.endsWith("*")) {
endsWithWildcard = true;
}
}
for (const pattern of excludePatterns) {
if (path.isAbsolute(pattern) || pattern.includes("..")) {
throw new Error(`Invalid override pattern (expected relative path not containing '..'): ${pattern}`);
}
}
const includes = toMatcher(includePatterns);
const excludes = toMatcher(excludePatterns);
return new OverrideTester(
[{ includes, excludes }],
basePath,
endsWithWildcard
);
}
/**
* Combine two testers by logical and.
* If either of the testers was `null`, returns the other tester.
* The `basePath` property of the two must be the same value.
* @param {OverrideTester|null} a A tester.
* @param {OverrideTester|null} b Another tester.
* @returns {OverrideTester|null} Combined tester.
*/
static and(a, b) {
if (!b) {
return a && new OverrideTester(
a.patterns,
a.basePath,
a.endsWithWildcard
);
}
if (!a) {
return new OverrideTester(
b.patterns,
b.basePath,
b.endsWithWildcard
);
}
assert.strictEqual(a.basePath, b.basePath);
return new OverrideTester(
a.patterns.concat(b.patterns),
a.basePath,
a.endsWithWildcard || b.endsWithWildcard
);
}
/**
* Initialize this instance.
* @param {Pattern[]} patterns The matchers.
* @param {string} basePath The base path.
* @param {boolean} endsWithWildcard If `true` then a pattern ends with `*`.
*/
constructor(patterns, basePath, endsWithWildcard = false) {
/** @type {Pattern[]} */
this.patterns = patterns;
/** @type {string} */
this.basePath = basePath;
/** @type {boolean} */
this.endsWithWildcard = endsWithWildcard;
}
/**
* Test if a given path is matched or not.
* @param {string} filePath The absolute path to the target file.
* @returns {boolean} `true` if the path was matched.
* @throws {Error} When invalid `filePath` is given.
*/
test(filePath) {
if (typeof filePath !== "string" || !path.isAbsolute(filePath)) {
throw new Error(`'filePath' should be an absolute path, but got ${filePath}.`);
}
const relativePath = path.relative(this.basePath, filePath);
return this.patterns.every(({ includes, excludes }) => (
(!includes || includes.some(m => m.match(relativePath))) &&
(!excludes || !excludes.some(m => m.match(relativePath)))
));
}
/**
* Converts this instance to a JSON compatible object.
* @returns {Object} a JSON compatible object.
*/
toJSON() {
if (this.patterns.length === 1) {
return {
...patternToJson(this.patterns[0]),
basePath: this.basePath
};
}
return {
AND: this.patterns.map(patternToJson),
basePath: this.basePath
};
}
/**
* Custom inspect method for Node.js `console.log()`.
* @returns {Object} an object to display by `console.log()`.
*/
[util.inspect.custom]() {
return this.toJSON();
}
}
export { OverrideTester };

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/**
* @fileoverview Compatibility class for flat config.
* @author Nicholas C. Zakas
*/
//-----------------------------------------------------------------------------
// Requirements
//-----------------------------------------------------------------------------
import createDebug from "debug";
import path from "node:path";
import environments from "../conf/environments.js";
import { ConfigArrayFactory } from "./config-array-factory.js";
//-----------------------------------------------------------------------------
// Helpers
//-----------------------------------------------------------------------------
/** @typedef {import("../../shared/types").Environment} Environment */
/** @typedef {import("../../shared/types").Processor} Processor */
const debug = createDebug("eslintrc:flat-compat");
const cafactory = Symbol("cafactory");
/**
* Translates an ESLintRC-style config object into a flag-config-style config
* object.
* @param {Object} eslintrcConfig An ESLintRC-style config object.
* @param {Object} options Options to help translate the config.
* @param {string} options.resolveConfigRelativeTo To the directory to resolve
* configs from.
* @param {string} options.resolvePluginsRelativeTo The directory to resolve
* plugins from.
* @param {ReadOnlyMap<string,Environment>} options.pluginEnvironments A map of plugin environment
* names to objects.
* @param {ReadOnlyMap<string,Processor>} options.pluginProcessors A map of plugin processor
* names to objects.
* @returns {Object} A flag-config-style config object.
* @throws {Error} If a plugin or environment cannot be resolved.
*/
function translateESLintRC(eslintrcConfig, {
resolveConfigRelativeTo,
resolvePluginsRelativeTo,
pluginEnvironments,
pluginProcessors
}) {
const flatConfig = {};
const configs = [];
const languageOptions = {};
const linterOptions = {};
const keysToCopy = ["settings", "rules", "processor"];
const languageOptionsKeysToCopy = ["globals", "parser", "parserOptions"];
const linterOptionsKeysToCopy = ["noInlineConfig", "reportUnusedDisableDirectives"];
// copy over simple translations
for (const key of keysToCopy) {
if (key in eslintrcConfig && typeof eslintrcConfig[key] !== "undefined") {
flatConfig[key] = eslintrcConfig[key];
}
}
// copy over languageOptions
for (const key of languageOptionsKeysToCopy) {
if (key in eslintrcConfig && typeof eslintrcConfig[key] !== "undefined") {
// create the languageOptions key in the flat config
flatConfig.languageOptions = languageOptions;
if (key === "parser") {
debug(`Resolving parser '${languageOptions[key]}' relative to ${resolveConfigRelativeTo}`);
if (eslintrcConfig[key].error) {
throw eslintrcConfig[key].error;
}
languageOptions[key] = eslintrcConfig[key].definition;
continue;
}
// clone any object values that are in the eslintrc config
if (eslintrcConfig[key] && typeof eslintrcConfig[key] === "object") {
languageOptions[key] = {
...eslintrcConfig[key]
};
} else {
languageOptions[key] = eslintrcConfig[key];
}
}
}
// copy over linterOptions
for (const key of linterOptionsKeysToCopy) {
if (key in eslintrcConfig && typeof eslintrcConfig[key] !== "undefined") {
flatConfig.linterOptions = linterOptions;
linterOptions[key] = eslintrcConfig[key];
}
}
// move ecmaVersion a level up
if (languageOptions.parserOptions) {
if ("ecmaVersion" in languageOptions.parserOptions) {
languageOptions.ecmaVersion = languageOptions.parserOptions.ecmaVersion;
delete languageOptions.parserOptions.ecmaVersion;
}
if ("sourceType" in languageOptions.parserOptions) {
languageOptions.sourceType = languageOptions.parserOptions.sourceType;
delete languageOptions.parserOptions.sourceType;
}
// check to see if we even need parserOptions anymore and remove it if not
if (Object.keys(languageOptions.parserOptions).length === 0) {
delete languageOptions.parserOptions;
}
}
// overrides
if (eslintrcConfig.criteria) {
flatConfig.files = [absoluteFilePath => eslintrcConfig.criteria.test(absoluteFilePath)];
}
// translate plugins
if (eslintrcConfig.plugins && typeof eslintrcConfig.plugins === "object") {
debug(`Translating plugins: ${eslintrcConfig.plugins}`);
flatConfig.plugins = {};
for (const pluginName of Object.keys(eslintrcConfig.plugins)) {
debug(`Translating plugin: ${pluginName}`);
debug(`Resolving plugin '${pluginName} relative to ${resolvePluginsRelativeTo}`);
const { original: plugin, error } = eslintrcConfig.plugins[pluginName];
if (error) {
throw error;
}
flatConfig.plugins[pluginName] = plugin;
// create a config for any processors
if (plugin.processors) {
for (const processorName of Object.keys(plugin.processors)) {
if (processorName.startsWith(".")) {
debug(`Assigning processor: ${pluginName}/${processorName}`);
configs.unshift({
files: [`**/*${processorName}`],
processor: pluginProcessors.get(`${pluginName}/${processorName}`)
});
}
}
}
}
}
// translate env - must come after plugins
if (eslintrcConfig.env && typeof eslintrcConfig.env === "object") {
for (const envName of Object.keys(eslintrcConfig.env)) {
// only add environments that are true
if (eslintrcConfig.env[envName]) {
debug(`Translating environment: ${envName}`);
if (environments.has(envName)) {
// built-in environments should be defined first
configs.unshift(...translateESLintRC({
criteria: eslintrcConfig.criteria,
...environments.get(envName)
}, {
resolveConfigRelativeTo,
resolvePluginsRelativeTo
}));
} else if (pluginEnvironments.has(envName)) {
// if the environment comes from a plugin, it should come after the plugin config
configs.push(...translateESLintRC({
criteria: eslintrcConfig.criteria,
...pluginEnvironments.get(envName)
}, {
resolveConfigRelativeTo,
resolvePluginsRelativeTo
}));
}
}
}
}
// only add if there are actually keys in the config
if (Object.keys(flatConfig).length > 0) {
configs.push(flatConfig);
}
return configs;
}
//-----------------------------------------------------------------------------
// Exports
//-----------------------------------------------------------------------------
/**
* A compatibility class for working with configs.
*/
class FlatCompat {
constructor({
baseDirectory = process.cwd(),
resolvePluginsRelativeTo = baseDirectory,
recommendedConfig,
allConfig
} = {}) {
this.baseDirectory = baseDirectory;
this.resolvePluginsRelativeTo = resolvePluginsRelativeTo;
this[cafactory] = new ConfigArrayFactory({
cwd: baseDirectory,
resolvePluginsRelativeTo,
getEslintAllConfig() {
if (!allConfig) {
throw new TypeError("Missing parameter 'allConfig' in FlatCompat constructor.");
}
// remove name property if it exists
const config = { ...allConfig };
delete config.name;
return config;
},
getEslintRecommendedConfig() {
if (!recommendedConfig) {
throw new TypeError("Missing parameter 'recommendedConfig' in FlatCompat constructor.");
}
// remove name property if it exists
const config = { ...recommendedConfig };
delete config.name;
return config;
}
});
}
/**
* Translates an ESLintRC-style config into a flag-config-style config.
* @param {Object} eslintrcConfig The ESLintRC-style config object.
* @returns {Object} A flag-config-style config object.
*/
config(eslintrcConfig) {
const eslintrcArray = this[cafactory].create(eslintrcConfig, {
basePath: this.baseDirectory
});
const flatArray = [];
let hasIgnorePatterns = false;
eslintrcArray.forEach(configData => {
if (configData.type === "config") {
hasIgnorePatterns = hasIgnorePatterns || configData.ignorePattern;
flatArray.push(...translateESLintRC(configData, {
resolveConfigRelativeTo: path.join(this.baseDirectory, "__placeholder.js"),
resolvePluginsRelativeTo: path.join(this.resolvePluginsRelativeTo, "__placeholder.js"),
pluginEnvironments: eslintrcArray.pluginEnvironments,
pluginProcessors: eslintrcArray.pluginProcessors
}));
}
});
// combine ignorePatterns to emulate ESLintRC behavior better
if (hasIgnorePatterns) {
flatArray.unshift({
ignores: [filePath => {
// Compute the final config for this file.
// This filters config array elements by `files`/`excludedFiles` then merges the elements.
const finalConfig = eslintrcArray.extractConfig(filePath);
// Test the `ignorePattern` properties of the final config.
return Boolean(finalConfig.ignores) && finalConfig.ignores(filePath);
}]
});
}
return flatArray;
}
/**
* Translates the `env` section of an ESLintRC-style config.
* @param {Object} envConfig The `env` section of an ESLintRC config.
* @returns {Object[]} An array of flag-config objects representing the environments.
*/
env(envConfig) {
return this.config({
env: envConfig
});
}
/**
* Translates the `extends` section of an ESLintRC-style config.
* @param {...string} configsToExtend The names of the configs to load.
* @returns {Object[]} An array of flag-config objects representing the config.
*/
extends(...configsToExtend) {
return this.config({
extends: configsToExtend
});
}
/**
* Translates the `plugins` section of an ESLintRC-style config.
* @param {...string} plugins The names of the plugins to load.
* @returns {Object[]} An array of flag-config objects representing the plugins.
*/
plugins(...plugins) {
return this.config({
plugins
});
}
}
export { FlatCompat };

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/**
* @fileoverview Package exports for @eslint/eslintrc
* @author Nicholas C. Zakas
*/
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
import * as ConfigOps from "./shared/config-ops.js";
import ConfigValidator from "./shared/config-validator.js";
import * as naming from "./shared/naming.js";
import environments from "../conf/environments.js";
//-----------------------------------------------------------------------------
// Exports
//-----------------------------------------------------------------------------
const Legacy = {
environments,
// shared
ConfigOps,
ConfigValidator,
naming
};
export {
Legacy
};

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node_modules/@eslint/eslintrc/lib/index.js generated vendored Normal file
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/**
* @fileoverview Package exports for @eslint/eslintrc
* @author Nicholas C. Zakas
*/
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
import {
ConfigArrayFactory,
createContext as createConfigArrayFactoryContext,
loadConfigFile
} from "./config-array-factory.js";
import { CascadingConfigArrayFactory } from "./cascading-config-array-factory.js";
import * as ModuleResolver from "./shared/relative-module-resolver.js";
import { ConfigArray, getUsedExtractedConfigs } from "./config-array/index.js";
import { ConfigDependency } from "./config-array/config-dependency.js";
import { ExtractedConfig } from "./config-array/extracted-config.js";
import { IgnorePattern } from "./config-array/ignore-pattern.js";
import { OverrideTester } from "./config-array/override-tester.js";
import * as ConfigOps from "./shared/config-ops.js";
import ConfigValidator from "./shared/config-validator.js";
import * as naming from "./shared/naming.js";
import { FlatCompat } from "./flat-compat.js";
import environments from "../conf/environments.js";
//-----------------------------------------------------------------------------
// Exports
//-----------------------------------------------------------------------------
const Legacy = {
ConfigArray,
createConfigArrayFactoryContext,
CascadingConfigArrayFactory,
ConfigArrayFactory,
ConfigDependency,
ExtractedConfig,
IgnorePattern,
OverrideTester,
getUsedExtractedConfigs,
environments,
loadConfigFile,
// shared
ConfigOps,
ConfigValidator,
ModuleResolver,
naming
};
export {
Legacy,
FlatCompat
};

191
node_modules/@eslint/eslintrc/lib/shared/ajv.js generated vendored Normal file
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/**
* @fileoverview The instance of Ajv validator.
* @author Evgeny Poberezkin
*/
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
import Ajv from "ajv";
//-----------------------------------------------------------------------------
// Helpers
//-----------------------------------------------------------------------------
/*
* Copied from ajv/lib/refs/json-schema-draft-04.json
* The MIT License (MIT)
* Copyright (c) 2015-2017 Evgeny Poberezkin
*/
const metaSchema = {
id: "http://json-schema.org/draft-04/schema#",
$schema: "http://json-schema.org/draft-04/schema#",
description: "Core schema meta-schema",
definitions: {
schemaArray: {
type: "array",
minItems: 1,
items: { $ref: "#" }
},
positiveInteger: {
type: "integer",
minimum: 0
},
positiveIntegerDefault0: {
allOf: [{ $ref: "#/definitions/positiveInteger" }, { default: 0 }]
},
simpleTypes: {
enum: ["array", "boolean", "integer", "null", "number", "object", "string"]
},
stringArray: {
type: "array",
items: { type: "string" },
minItems: 1,
uniqueItems: true
}
},
type: "object",
properties: {
id: {
type: "string"
},
$schema: {
type: "string"
},
title: {
type: "string"
},
description: {
type: "string"
},
default: { },
multipleOf: {
type: "number",
minimum: 0,
exclusiveMinimum: true
},
maximum: {
type: "number"
},
exclusiveMaximum: {
type: "boolean",
default: false
},
minimum: {
type: "number"
},
exclusiveMinimum: {
type: "boolean",
default: false
},
maxLength: { $ref: "#/definitions/positiveInteger" },
minLength: { $ref: "#/definitions/positiveIntegerDefault0" },
pattern: {
type: "string",
format: "regex"
},
additionalItems: {
anyOf: [
{ type: "boolean" },
{ $ref: "#" }
],
default: { }
},
items: {
anyOf: [
{ $ref: "#" },
{ $ref: "#/definitions/schemaArray" }
],
default: { }
},
maxItems: { $ref: "#/definitions/positiveInteger" },
minItems: { $ref: "#/definitions/positiveIntegerDefault0" },
uniqueItems: {
type: "boolean",
default: false
},
maxProperties: { $ref: "#/definitions/positiveInteger" },
minProperties: { $ref: "#/definitions/positiveIntegerDefault0" },
required: { $ref: "#/definitions/stringArray" },
additionalProperties: {
anyOf: [
{ type: "boolean" },
{ $ref: "#" }
],
default: { }
},
definitions: {
type: "object",
additionalProperties: { $ref: "#" },
default: { }
},
properties: {
type: "object",
additionalProperties: { $ref: "#" },
default: { }
},
patternProperties: {
type: "object",
additionalProperties: { $ref: "#" },
default: { }
},
dependencies: {
type: "object",
additionalProperties: {
anyOf: [
{ $ref: "#" },
{ $ref: "#/definitions/stringArray" }
]
}
},
enum: {
type: "array",
minItems: 1,
uniqueItems: true
},
type: {
anyOf: [
{ $ref: "#/definitions/simpleTypes" },
{
type: "array",
items: { $ref: "#/definitions/simpleTypes" },
minItems: 1,
uniqueItems: true
}
]
},
format: { type: "string" },
allOf: { $ref: "#/definitions/schemaArray" },
anyOf: { $ref: "#/definitions/schemaArray" },
oneOf: { $ref: "#/definitions/schemaArray" },
not: { $ref: "#" }
},
dependencies: {
exclusiveMaximum: ["maximum"],
exclusiveMinimum: ["minimum"]
},
default: { }
};
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
export default (additionalOptions = {}) => {
const ajv = new Ajv({
meta: false,
useDefaults: true,
validateSchema: false,
missingRefs: "ignore",
verbose: true,
schemaId: "auto",
...additionalOptions
});
ajv.addMetaSchema(metaSchema);
// eslint-disable-next-line no-underscore-dangle -- part of the API
ajv._opts.defaultMeta = metaSchema.id;
return ajv;
};

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/**
* @fileoverview Config file operations. This file must be usable in the browser,
* so no Node-specific code can be here.
* @author Nicholas C. Zakas
*/
//------------------------------------------------------------------------------
// Private
//------------------------------------------------------------------------------
const RULE_SEVERITY_STRINGS = ["off", "warn", "error"],
RULE_SEVERITY = RULE_SEVERITY_STRINGS.reduce((map, value, index) => {
map[value] = index;
return map;
}, {}),
VALID_SEVERITIES = new Set([0, 1, 2, "off", "warn", "error"]);
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
/**
* Normalizes the severity value of a rule's configuration to a number
* @param {(number|string|[number, ...*]|[string, ...*])} ruleConfig A rule's configuration value, generally
* received from the user. A valid config value is either 0, 1, 2, the string "off" (treated the same as 0),
* the string "warn" (treated the same as 1), the string "error" (treated the same as 2), or an array
* whose first element is one of the above values. Strings are matched case-insensitively.
* @returns {(0|1|2)} The numeric severity value if the config value was valid, otherwise 0.
*/
function getRuleSeverity(ruleConfig) {
const severityValue = Array.isArray(ruleConfig) ? ruleConfig[0] : ruleConfig;
if (severityValue === 0 || severityValue === 1 || severityValue === 2) {
return severityValue;
}
if (typeof severityValue === "string") {
return RULE_SEVERITY[severityValue.toLowerCase()] || 0;
}
return 0;
}
/**
* Converts old-style severity settings (0, 1, 2) into new-style
* severity settings (off, warn, error) for all rules. Assumption is that severity
* values have already been validated as correct.
* @param {Object} config The config object to normalize.
* @returns {void}
*/
function normalizeToStrings(config) {
if (config.rules) {
Object.keys(config.rules).forEach(ruleId => {
const ruleConfig = config.rules[ruleId];
if (typeof ruleConfig === "number") {
config.rules[ruleId] = RULE_SEVERITY_STRINGS[ruleConfig] || RULE_SEVERITY_STRINGS[0];
} else if (Array.isArray(ruleConfig) && typeof ruleConfig[0] === "number") {
ruleConfig[0] = RULE_SEVERITY_STRINGS[ruleConfig[0]] || RULE_SEVERITY_STRINGS[0];
}
});
}
}
/**
* Determines if the severity for the given rule configuration represents an error.
* @param {int|string|Array} ruleConfig The configuration for an individual rule.
* @returns {boolean} True if the rule represents an error, false if not.
*/
function isErrorSeverity(ruleConfig) {
return getRuleSeverity(ruleConfig) === 2;
}
/**
* Checks whether a given config has valid severity or not.
* @param {number|string|Array} ruleConfig The configuration for an individual rule.
* @returns {boolean} `true` if the configuration has valid severity.
*/
function isValidSeverity(ruleConfig) {
let severity = Array.isArray(ruleConfig) ? ruleConfig[0] : ruleConfig;
if (typeof severity === "string") {
severity = severity.toLowerCase();
}
return VALID_SEVERITIES.has(severity);
}
/**
* Checks whether every rule of a given config has valid severity or not.
* @param {Object} config The configuration for rules.
* @returns {boolean} `true` if the configuration has valid severity.
*/
function isEverySeverityValid(config) {
return Object.keys(config).every(ruleId => isValidSeverity(config[ruleId]));
}
/**
* Normalizes a value for a global in a config
* @param {(boolean|string|null)} configuredValue The value given for a global in configuration or in
* a global directive comment
* @returns {("readable"|"writeable"|"off")} The value normalized as a string
* @throws Error if global value is invalid
*/
function normalizeConfigGlobal(configuredValue) {
switch (configuredValue) {
case "off":
return "off";
case true:
case "true":
case "writeable":
case "writable":
return "writable";
case null:
case false:
case "false":
case "readable":
case "readonly":
return "readonly";
default:
throw new Error(`'${configuredValue}' is not a valid configuration for a global (use 'readonly', 'writable', or 'off')`);
}
}
export {
getRuleSeverity,
normalizeToStrings,
isErrorSeverity,
isValidSeverity,
isEverySeverityValid,
normalizeConfigGlobal
};

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/**
* @fileoverview Validates configs.
* @author Brandon Mills
*/
/* eslint class-methods-use-this: "off" -- not needed in this file */
//------------------------------------------------------------------------------
// Typedefs
//------------------------------------------------------------------------------
/** @typedef {import("../shared/types").Rule} Rule */
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
import util from "node:util";
import * as ConfigOps from "./config-ops.js";
import { emitDeprecationWarning } from "./deprecation-warnings.js";
import ajvOrig from "./ajv.js";
import { deepMergeArrays } from "./deep-merge-arrays.js";
import configSchema from "../../conf/config-schema.js";
import BuiltInEnvironments from "../../conf/environments.js";
const ajv = ajvOrig();
const ruleValidators = new WeakMap();
const noop = Function.prototype;
//------------------------------------------------------------------------------
// Private
//------------------------------------------------------------------------------
let validateSchema;
const severityMap = {
error: 2,
warn: 1,
off: 0
};
const validated = new WeakSet();
// JSON schema that disallows passing any options
const noOptionsSchema = Object.freeze({
type: "array",
minItems: 0,
maxItems: 0
});
//-----------------------------------------------------------------------------
// Exports
//-----------------------------------------------------------------------------
/**
* Validator for configuration objects.
*/
export default class ConfigValidator {
constructor({ builtInRules = new Map() } = {}) {
this.builtInRules = builtInRules;
}
/**
* Gets a complete options schema for a rule.
* @param {Rule} rule A rule object
* @throws {TypeError} If `meta.schema` is specified but is not an array, object or `false`.
* @returns {Object|null} JSON Schema for the rule's options.
* `null` if rule wasn't passed or its `meta.schema` is `false`.
*/
getRuleOptionsSchema(rule) {
if (!rule) {
return null;
}
if (!rule.meta) {
return { ...noOptionsSchema }; // default if `meta.schema` is not specified
}
const schema = rule.meta.schema;
if (typeof schema === "undefined") {
return { ...noOptionsSchema }; // default if `meta.schema` is not specified
}
// `schema:false` is an allowed explicit opt-out of options validation for the rule
if (schema === false) {
return null;
}
if (typeof schema !== "object" || schema === null) {
throw new TypeError("Rule's `meta.schema` must be an array or object");
}
// ESLint-specific array form needs to be converted into a valid JSON Schema definition
if (Array.isArray(schema)) {
if (schema.length) {
return {
type: "array",
items: schema,
minItems: 0,
maxItems: schema.length
};
}
// `schema:[]` is an explicit way to specify that the rule does not accept any options
return { ...noOptionsSchema };
}
// `schema:<object>` is assumed to be a valid JSON Schema definition
return schema;
}
/**
* Validates a rule's severity and returns the severity value. Throws an error if the severity is invalid.
* @param {options} options The given options for the rule.
* @returns {number|string} The rule's severity value
* @throws {Error} If the severity is invalid.
*/
validateRuleSeverity(options) {
const severity = Array.isArray(options) ? options[0] : options;
const normSeverity = typeof severity === "string" ? severityMap[severity.toLowerCase()] : severity;
if (normSeverity === 0 || normSeverity === 1 || normSeverity === 2) {
return normSeverity;
}
throw new Error(`\tSeverity should be one of the following: 0 = off, 1 = warn, 2 = error (you passed '${util.inspect(severity).replace(/'/gu, "\"").replace(/\n/gu, "")}').\n`);
}
/**
* Validates the non-severity options passed to a rule, based on its schema.
* @param {{create: Function}} rule The rule to validate
* @param {Array} localOptions The options for the rule, excluding severity
* @returns {void}
* @throws {Error} If the options are invalid.
*/
validateRuleSchema(rule, localOptions) {
if (!ruleValidators.has(rule)) {
try {
const schema = this.getRuleOptionsSchema(rule);
if (schema) {
ruleValidators.set(rule, ajv.compile(schema));
}
} catch (err) {
const errorWithCode = new Error(err.message, { cause: err });
errorWithCode.code = "ESLINT_INVALID_RULE_OPTIONS_SCHEMA";
throw errorWithCode;
}
}
const validateRule = ruleValidators.get(rule);
if (validateRule) {
const mergedOptions = deepMergeArrays(rule.meta?.defaultOptions, localOptions);
validateRule(mergedOptions);
if (validateRule.errors) {
throw new Error(validateRule.errors.map(
error => `\tValue ${JSON.stringify(error.data)} ${error.message}.\n`
).join(""));
}
}
}
/**
* Validates a rule's options against its schema.
* @param {{create: Function}|null} rule The rule that the config is being validated for
* @param {string} ruleId The rule's unique name.
* @param {Array|number} options The given options for the rule.
* @param {string|null} source The name of the configuration source to report in any errors. If null or undefined,
* no source is prepended to the message.
* @returns {void}
* @throws {Error} If the options are invalid.
*/
validateRuleOptions(rule, ruleId, options, source = null) {
try {
const severity = this.validateRuleSeverity(options);
if (severity !== 0) {
this.validateRuleSchema(rule, Array.isArray(options) ? options.slice(1) : []);
}
} catch (err) {
let enhancedMessage = err.code === "ESLINT_INVALID_RULE_OPTIONS_SCHEMA"
? `Error while processing options validation schema of rule '${ruleId}': ${err.message}`
: `Configuration for rule "${ruleId}" is invalid:\n${err.message}`;
if (typeof source === "string") {
enhancedMessage = `${source}:\n\t${enhancedMessage}`;
}
const enhancedError = new Error(enhancedMessage, { cause: err });
if (err.code) {
enhancedError.code = err.code;
}
throw enhancedError;
}
}
/**
* Validates an environment object
* @param {Object} environment The environment config object to validate.
* @param {string} source The name of the configuration source to report in any errors.
* @param {(envId:string) => Object} [getAdditionalEnv] A map from strings to loaded environments.
* @returns {void}
* @throws {Error} If the environment is invalid.
*/
validateEnvironment(
environment,
source,
getAdditionalEnv = noop
) {
// not having an environment is ok
if (!environment) {
return;
}
Object.keys(environment).forEach(id => {
const env = getAdditionalEnv(id) || BuiltInEnvironments.get(id) || null;
if (!env) {
const message = `${source}:\n\tEnvironment key "${id}" is unknown\n`;
throw new Error(message);
}
});
}
/**
* Validates a rules config object
* @param {Object} rulesConfig The rules config object to validate.
* @param {string} source The name of the configuration source to report in any errors.
* @param {(ruleId:string) => Object} getAdditionalRule A map from strings to loaded rules
* @returns {void}
*/
validateRules(
rulesConfig,
source,
getAdditionalRule = noop
) {
if (!rulesConfig) {
return;
}
Object.keys(rulesConfig).forEach(id => {
const rule = getAdditionalRule(id) || this.builtInRules.get(id) || null;
this.validateRuleOptions(rule, id, rulesConfig[id], source);
});
}
/**
* Validates a `globals` section of a config file
* @param {Object} globalsConfig The `globals` section
* @param {string|null} source The name of the configuration source to report in the event of an error.
* @returns {void}
*/
validateGlobals(globalsConfig, source = null) {
if (!globalsConfig) {
return;
}
Object.entries(globalsConfig)
.forEach(([configuredGlobal, configuredValue]) => {
try {
ConfigOps.normalizeConfigGlobal(configuredValue);
} catch (err) {
throw new Error(`ESLint configuration of global '${configuredGlobal}' in ${source} is invalid:\n${err.message}`);
}
});
}
/**
* Validate `processor` configuration.
* @param {string|undefined} processorName The processor name.
* @param {string} source The name of config file.
* @param {(id:string) => Processor} getProcessor The getter of defined processors.
* @returns {void}
* @throws {Error} If the processor is invalid.
*/
validateProcessor(processorName, source, getProcessor) {
if (processorName && !getProcessor(processorName)) {
throw new Error(`ESLint configuration of processor in '${source}' is invalid: '${processorName}' was not found.`);
}
}
/**
* Formats an array of schema validation errors.
* @param {Array} errors An array of error messages to format.
* @returns {string} Formatted error message
*/
formatErrors(errors) {
return errors.map(error => {
if (error.keyword === "additionalProperties") {
const formattedPropertyPath = error.dataPath.length ? `${error.dataPath.slice(1)}.${error.params.additionalProperty}` : error.params.additionalProperty;
return `Unexpected top-level property "${formattedPropertyPath}"`;
}
if (error.keyword === "type") {
const formattedField = error.dataPath.slice(1);
const formattedExpectedType = Array.isArray(error.schema) ? error.schema.join("/") : error.schema;
const formattedValue = JSON.stringify(error.data);
return `Property "${formattedField}" is the wrong type (expected ${formattedExpectedType} but got \`${formattedValue}\`)`;
}
const field = error.dataPath[0] === "." ? error.dataPath.slice(1) : error.dataPath;
return `"${field}" ${error.message}. Value: ${JSON.stringify(error.data)}`;
}).map(message => `\t- ${message}.\n`).join("");
}
/**
* Validates the top level properties of the config object.
* @param {Object} config The config object to validate.
* @param {string} source The name of the configuration source to report in any errors.
* @returns {void}
* @throws {Error} If the config is invalid.
*/
validateConfigSchema(config, source = null) {
validateSchema = validateSchema || ajv.compile(configSchema);
if (!validateSchema(config)) {
throw new Error(`ESLint configuration in ${source} is invalid:\n${this.formatErrors(validateSchema.errors)}`);
}
if (Object.hasOwn(config, "ecmaFeatures")) {
emitDeprecationWarning(source, "ESLINT_LEGACY_ECMAFEATURES");
}
}
/**
* Validates an entire config object.
* @param {Object} config The config object to validate.
* @param {string} source The name of the configuration source to report in any errors.
* @param {(ruleId:string) => Object} [getAdditionalRule] A map from strings to loaded rules.
* @param {(envId:string) => Object} [getAdditionalEnv] A map from strings to loaded envs.
* @returns {void}
*/
validate(config, source, getAdditionalRule, getAdditionalEnv) {
this.validateConfigSchema(config, source);
this.validateRules(config.rules, source, getAdditionalRule);
this.validateEnvironment(config.env, source, getAdditionalEnv);
this.validateGlobals(config.globals, source);
for (const override of config.overrides || []) {
this.validateRules(override.rules, source, getAdditionalRule);
this.validateEnvironment(override.env, source, getAdditionalEnv);
this.validateGlobals(config.globals, source);
}
}
/**
* Validate config array object.
* @param {ConfigArray} configArray The config array to validate.
* @returns {void}
*/
validateConfigArray(configArray) {
const getPluginEnv = Map.prototype.get.bind(configArray.pluginEnvironments);
const getPluginProcessor = Map.prototype.get.bind(configArray.pluginProcessors);
const getPluginRule = Map.prototype.get.bind(configArray.pluginRules);
// Validate.
for (const element of configArray) {
if (validated.has(element)) {
continue;
}
validated.add(element);
this.validateEnvironment(element.env, element.name, getPluginEnv);
this.validateGlobals(element.globals, element.name);
this.validateProcessor(element.processor, element.name, getPluginProcessor);
this.validateRules(element.rules, element.name, getPluginRule);
}
}
}

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/**
* @fileoverview Applies default rule options
* @author JoshuaKGoldberg
*/
/**
* Check if the variable contains an object strictly rejecting arrays
* @param {unknown} value an object
* @returns {boolean} Whether value is an object
*/
function isObjectNotArray(value) {
return typeof value === "object" && value !== null && !Array.isArray(value);
}
/**
* Deeply merges second on top of first, creating a new {} object if needed.
* @param {T} first Base, default value.
* @param {U} second User-specified value.
* @returns {T | U | (T & U)} Merged equivalent of second on top of first.
*/
function deepMergeObjects(first, second) {
if (second === void 0) {
return first;
}
if (!isObjectNotArray(first) || !isObjectNotArray(second)) {
return second;
}
const result = { ...first, ...second };
for (const key of Object.keys(second)) {
if (Object.prototype.propertyIsEnumerable.call(first, key)) {
result[key] = deepMergeObjects(first[key], second[key]);
}
}
return result;
}
/**
* Deeply merges second on top of first, creating a new [] array if needed.
* @param {T[] | undefined} first Base, default values.
* @param {U[] | undefined} second User-specified values.
* @returns {(T | U | (T & U))[]} Merged equivalent of second on top of first.
*/
function deepMergeArrays(first, second) {
if (!first || !second) {
return second || first || [];
}
return [
...first.map((value, i) => deepMergeObjects(value, second[i])),
...second.slice(first.length)
];
}
export { deepMergeArrays };

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/**
* @fileoverview Provide the function that emits deprecation warnings.
* @author Toru Nagashima <http://github.com/mysticatea>
*/
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
import path from "node:path";
//------------------------------------------------------------------------------
// Private
//------------------------------------------------------------------------------
// Defitions for deprecation warnings.
const deprecationWarningMessages = {
ESLINT_LEGACY_ECMAFEATURES:
"The 'ecmaFeatures' config file property is deprecated and has no effect.",
ESLINT_PERSONAL_CONFIG_LOAD:
"'~/.eslintrc.*' config files have been deprecated. " +
"Please use a config file per project or the '--config' option.",
ESLINT_PERSONAL_CONFIG_SUPPRESS:
"'~/.eslintrc.*' config files have been deprecated. " +
"Please remove it or add 'root:true' to the config files in your " +
"projects in order to avoid loading '~/.eslintrc.*' accidentally."
};
const sourceFileErrorCache = new Set();
/**
* Emits a deprecation warning containing a given filepath. A new deprecation warning is emitted
* for each unique file path, but repeated invocations with the same file path have no effect.
* No warnings are emitted if the `--no-deprecation` or `--no-warnings` Node runtime flags are active.
* @param {string} source The name of the configuration source to report the warning for.
* @param {string} errorCode The warning message to show.
* @returns {void}
*/
function emitDeprecationWarning(source, errorCode) {
const cacheKey = JSON.stringify({ source, errorCode });
if (sourceFileErrorCache.has(cacheKey)) {
return;
}
sourceFileErrorCache.add(cacheKey);
const rel = path.relative(process.cwd(), source);
const message = deprecationWarningMessages[errorCode];
process.emitWarning(
`${message} (found in "${rel}")`,
"DeprecationWarning",
errorCode
);
}
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
export {
emitDeprecationWarning
};

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node_modules/@eslint/eslintrc/lib/shared/naming.js generated vendored Normal file
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/**
* @fileoverview Common helpers for naming of plugins, formatters and configs
*/
const NAMESPACE_REGEX = /^@.*\//iu;
/**
* Brings package name to correct format based on prefix
* @param {string} name The name of the package.
* @param {string} prefix Can be either "eslint-plugin", "eslint-config" or "eslint-formatter"
* @returns {string} Normalized name of the package
* @private
*/
function normalizePackageName(name, prefix) {
let normalizedName = name;
/**
* On Windows, name can come in with Windows slashes instead of Unix slashes.
* Normalize to Unix first to avoid errors later on.
* https://github.com/eslint/eslint/issues/5644
*/
if (normalizedName.includes("\\")) {
normalizedName = normalizedName.replace(/\\/gu, "/");
}
if (normalizedName.charAt(0) === "@") {
/**
* it's a scoped package
* package name is the prefix, or just a username
*/
const scopedPackageShortcutRegex = new RegExp(`^(@[^/]+)(?:/(?:${prefix})?)?$`, "u"),
scopedPackageNameRegex = new RegExp(`^${prefix}(-|$)`, "u");
if (scopedPackageShortcutRegex.test(normalizedName)) {
normalizedName = normalizedName.replace(scopedPackageShortcutRegex, `$1/${prefix}`);
} else if (!scopedPackageNameRegex.test(normalizedName.split("/")[1])) {
/**
* for scoped packages, insert the prefix after the first / unless
* the path is already @scope/eslint or @scope/eslint-xxx-yyy
*/
normalizedName = normalizedName.replace(/^@([^/]+)\/(.*)$/u, `@$1/${prefix}-$2`);
}
} else if (!normalizedName.startsWith(`${prefix}-`)) {
normalizedName = `${prefix}-${normalizedName}`;
}
return normalizedName;
}
/**
* Removes the prefix from a fullname.
* @param {string} fullname The term which may have the prefix.
* @param {string} prefix The prefix to remove.
* @returns {string} The term without prefix.
*/
function getShorthandName(fullname, prefix) {
if (fullname[0] === "@") {
let matchResult = new RegExp(`^(@[^/]+)/${prefix}$`, "u").exec(fullname);
if (matchResult) {
return matchResult[1];
}
matchResult = new RegExp(`^(@[^/]+)/${prefix}-(.+)$`, "u").exec(fullname);
if (matchResult) {
return `${matchResult[1]}/${matchResult[2]}`;
}
} else if (fullname.startsWith(`${prefix}-`)) {
return fullname.slice(prefix.length + 1);
}
return fullname;
}
/**
* Gets the scope (namespace) of a term.
* @param {string} term The term which may have the namespace.
* @returns {string} The namespace of the term if it has one.
*/
function getNamespaceFromTerm(term) {
const match = term.match(NAMESPACE_REGEX);
return match ? match[0] : "";
}
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
export {
normalizePackageName,
getShorthandName,
getNamespaceFromTerm
};

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/**
* Utility for resolving a module relative to another module
* @author Teddy Katz
*/
import Module from "node:module";
/*
* `Module.createRequire` is added in v12.2.0. It supports URL as well.
* We only support the case where the argument is a filepath, not a URL.
*/
const createRequire = Module.createRequire;
/**
* Resolves a Node module relative to another module
* @param {string} moduleName The name of a Node module, or a path to a Node module.
* @param {string} relativeToPath An absolute path indicating the module that `moduleName` should be resolved relative to. This must be
* a file rather than a directory, but the file need not actually exist.
* @returns {string} The absolute path that would result from calling `require.resolve(moduleName)` in a file located at `relativeToPath`
* @throws {Error} When the module cannot be resolved.
*/
function resolve(moduleName, relativeToPath) {
try {
return createRequire(relativeToPath).resolve(moduleName);
} catch (error) {
// This `if` block is for older Node.js than 12.0.0. We can remove this block in the future.
if (
typeof error === "object" &&
error !== null &&
error.code === "MODULE_NOT_FOUND" &&
!error.requireStack &&
error.message.includes(moduleName)
) {
error.message += `\nRequire stack:\n- ${relativeToPath}`;
}
throw error;
}
}
export {
resolve
};

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node_modules/@eslint/eslintrc/lib/shared/types.js generated vendored Normal file
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/**
* @fileoverview Define common types for input completion.
* @author Toru Nagashima <https://github.com/mysticatea>
*/
/** @type {any} */
export default {};
/** @typedef {boolean | "off" | "readable" | "readonly" | "writable" | "writeable"} GlobalConf */
/** @typedef {0 | 1 | 2 | "off" | "warn" | "error"} SeverityConf */
/** @typedef {SeverityConf | [SeverityConf, ...any[]]} RuleConf */
/**
* @typedef {Object} EcmaFeatures
* @property {boolean} [globalReturn] Enabling `return` statements at the top-level.
* @property {boolean} [jsx] Enabling JSX syntax.
* @property {boolean} [impliedStrict] Enabling strict mode always.
*/
/**
* @typedef {Object} ParserOptions
* @property {EcmaFeatures} [ecmaFeatures] The optional features.
* @property {3|5|6|7|8|9|10|11|12|2015|2016|2017|2018|2019|2020|2021} [ecmaVersion] The ECMAScript version (or revision number).
* @property {"script"|"module"} [sourceType] The source code type.
*/
/**
* @typedef {Object} ConfigData
* @property {Record<string, boolean>} [env] The environment settings.
* @property {string | string[]} [extends] The path to other config files or the package name of shareable configs.
* @property {Record<string, GlobalConf>} [globals] The global variable settings.
* @property {string | string[]} [ignorePatterns] The glob patterns that ignore to lint.
* @property {boolean} [noInlineConfig] The flag that disables directive comments.
* @property {OverrideConfigData[]} [overrides] The override settings per kind of files.
* @property {string} [parser] The path to a parser or the package name of a parser.
* @property {ParserOptions} [parserOptions] The parser options.
* @property {string[]} [plugins] The plugin specifiers.
* @property {string} [processor] The processor specifier.
* @property {boolean} [reportUnusedDisableDirectives] The flag to report unused `eslint-disable` comments.
* @property {boolean} [root] The root flag.
* @property {Record<string, RuleConf>} [rules] The rule settings.
* @property {Object} [settings] The shared settings.
*/
/**
* @typedef {Object} OverrideConfigData
* @property {Record<string, boolean>} [env] The environment settings.
* @property {string | string[]} [excludedFiles] The glob pattarns for excluded files.
* @property {string | string[]} [extends] The path to other config files or the package name of shareable configs.
* @property {string | string[]} files The glob patterns for target files.
* @property {Record<string, GlobalConf>} [globals] The global variable settings.
* @property {boolean} [noInlineConfig] The flag that disables directive comments.
* @property {OverrideConfigData[]} [overrides] The override settings per kind of files.
* @property {string} [parser] The path to a parser or the package name of a parser.
* @property {ParserOptions} [parserOptions] The parser options.
* @property {string[]} [plugins] The plugin specifiers.
* @property {string} [processor] The processor specifier.
* @property {boolean} [reportUnusedDisableDirectives] The flag to report unused `eslint-disable` comments.
* @property {Record<string, RuleConf>} [rules] The rule settings.
* @property {Object} [settings] The shared settings.
*/
/**
* @typedef {Object} ParseResult
* @property {Object} ast The AST.
* @property {ScopeManager} [scopeManager] The scope manager of the AST.
* @property {Record<string, any>} [services] The services that the parser provides.
* @property {Record<string, string[]>} [visitorKeys] The visitor keys of the AST.
*/
/**
* @typedef {Object} Parser
* @property {(text:string, options:ParserOptions) => Object} parse The definition of global variables.
* @property {(text:string, options:ParserOptions) => ParseResult} [parseForESLint] The parser options that will be enabled under this environment.
*/
/**
* @typedef {Object} Environment
* @property {Record<string, GlobalConf>} [globals] The definition of global variables.
* @property {ParserOptions} [parserOptions] The parser options that will be enabled under this environment.
*/
/**
* @typedef {Object} LintMessage
* @property {number} column The 1-based column number.
* @property {number} [endColumn] The 1-based column number of the end location.
* @property {number} [endLine] The 1-based line number of the end location.
* @property {boolean} fatal If `true` then this is a fatal error.
* @property {{range:[number,number], text:string}} [fix] Information for autofix.
* @property {number} line The 1-based line number.
* @property {string} message The error message.
* @property {string|null} ruleId The ID of the rule which makes this message.
* @property {0|1|2} severity The severity of this message.
* @property {Array<{desc?: string, messageId?: string, fix: {range: [number, number], text: string}}>} [suggestions] Information for suggestions.
*/
/**
* @typedef {Object} SuggestionResult
* @property {string} desc A short description.
* @property {string} [messageId] Id referencing a message for the description.
* @property {{ text: string, range: number[] }} fix fix result info
*/
/**
* @typedef {Object} Processor
* @property {(text:string, filename:string) => Array<string | { text:string, filename:string }>} [preprocess] The function to extract code blocks.
* @property {(messagesList:LintMessage[][], filename:string) => LintMessage[]} [postprocess] The function to merge messages.
* @property {boolean} [supportsAutofix] If `true` then it means the processor supports autofix.
*/
/**
* @typedef {Object} RuleMetaDocs
* @property {string} category The category of the rule.
* @property {string} description The description of the rule.
* @property {boolean} recommended If `true` then the rule is included in `eslint:recommended` preset.
* @property {string} url The URL of the rule documentation.
*/
/**
* @typedef {Object} RuleMeta
* @property {boolean} [deprecated] If `true` then the rule has been deprecated.
* @property {RuleMetaDocs} docs The document information of the rule.
* @property {"code"|"whitespace"} [fixable] The autofix type.
* @property {Record<string,string>} [messages] The messages the rule reports.
* @property {string[]} [replacedBy] The IDs of the alternative rules.
* @property {Array|Object} schema The option schema of the rule.
* @property {"problem"|"suggestion"|"layout"} type The rule type.
*/
/**
* @typedef {Object} Rule
* @property {Function} create The factory of the rule.
* @property {RuleMeta} meta The meta data of the rule.
*/
/**
* @typedef {Object} Plugin
* @property {Record<string, ConfigData>} [configs] The definition of plugin configs.
* @property {Record<string, Environment>} [environments] The definition of plugin environments.
* @property {Record<string, Processor>} [processors] The definition of plugin processors.
* @property {Record<string, Function | Rule>} [rules] The definition of plugin rules.
*/
/**
* Information of deprecated rules.
* @typedef {Object} DeprecatedRuleInfo
* @property {string} ruleId The rule ID.
* @property {string[]} replacedBy The rule IDs that replace this deprecated rule.
*/

76
node_modules/@eslint/eslintrc/lib/types/index.d.ts generated vendored Normal file
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/**
* @fileoverview This file contains the core types for ESLint. It was initially extracted
* from the `@types/eslint__eslintrc` package.
*/
/*
* MIT License
* Copyright (c) Microsoft Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE
*/
import type { Linter } from "eslint";
/**
* A compatibility class for working with configs.
*/
export class FlatCompat {
constructor({
baseDirectory,
resolvePluginsRelativeTo,
recommendedConfig,
allConfig,
}?: {
/**
* default: process.cwd()
*/
baseDirectory?: string;
resolvePluginsRelativeTo?: string;
recommendedConfig?: Linter.LegacyConfig;
allConfig?: Linter.LegacyConfig;
});
/**
* Translates an ESLintRC-style config into a flag-config-style config.
* @param eslintrcConfig The ESLintRC-style config object.
* @returns A flag-config-style config object.
*/
config(eslintrcConfig: Linter.LegacyConfig): Linter.Config[];
/**
* Translates the `env` section of an ESLintRC-style config.
* @param envConfig The `env` section of an ESLintRC config.
* @returns An array of flag-config objects representing the environments.
*/
env(envConfig: { [name: string]: boolean }): Linter.Config[];
/**
* Translates the `extends` section of an ESLintRC-style config.
* @param configsToExtend The names of the configs to load.
* @returns An array of flag-config objects representing the config.
*/
extends(...configsToExtend: string[]): Linter.Config[];
/**
* Translates the `plugins` section of an ESLintRC-style config.
* @param plugins The names of the plugins to load.
* @returns An array of flag-config objects representing the plugins.
*/
plugins(...plugins: string[]): Linter.Config[];
}

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@@ -0,0 +1,21 @@
MIT License
Copyright (c) 2013 Julian Gruber <julian@juliangruber.com>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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