Marc Mintel
5397309103
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75 lines
2.1 KiB
Plaintext
75 lines
2.1 KiB
Plaintext
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Authors Simen Brekken @simenbrekken, Einar Löve @einarlove
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*/
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"use strict";
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const DefinePlugin = require("./DefinePlugin");
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const WebpackError = require("./WebpackError");
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/** @typedef {import("./Compiler")} Compiler */
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/** @typedef {import("./DefinePlugin").CodeValue} CodeValue */
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const PLUGIN_NAME = "EnvironmentPlugin";
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class EnvironmentPlugin {
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/**
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* @param {(string | string[] | Record<string, EXPECTED_ANY>)[]} keys keys
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*/
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constructor(...keys) {
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if (keys.length === 1 && Array.isArray(keys[0])) {
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/** @type {string[]} */
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this.keys = keys[0];
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this.defaultValues = {};
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} else if (keys.length === 1 && keys[0] && typeof keys[0] === "object") {
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this.keys = Object.keys(keys[0]);
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this.defaultValues =
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/** @type {Record<string, EXPECTED_ANY>} */
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(keys[0]);
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} else {
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this.keys = /** @type {string[]} */ (keys);
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this.defaultValues = {};
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}
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}
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/**
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* Apply the plugin
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* @param {Compiler} compiler the compiler instance
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* @returns {void}
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*/
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apply(compiler) {
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const definePlugin = new DefinePlugin({});
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compiler.hooks.thisCompilation.tap(PLUGIN_NAME, (compilation) => {
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/** @type {Record<string, CodeValue>} */
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const definitions = {};
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for (const key of this.keys) {
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const value =
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process.env[key] !== undefined
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? process.env[key]
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: this.defaultValues[key];
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if (value === undefined) {
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const error = new WebpackError(
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`${PLUGIN_NAME} - ${key} environment variable is undefined.\n\n` +
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"You can pass an object with default values to suppress this warning.\n" +
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"See https://webpack.js.org/plugins/environment-plugin for example."
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);
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error.name = "EnvVariableNotDefinedError";
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compilation.errors.push(error);
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}
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const defValue =
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value === undefined ? "undefined" : JSON.stringify(value);
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definitions[`process.env.${key}`] = defValue;
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definitions[`import.meta.env.${key}`] = defValue;
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}
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definePlugin.definitions = definitions;
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});
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definePlugin.apply(compiler);
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}
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}
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module.exports = EnvironmentPlugin;
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