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70 lines
2.6 KiB
70 lines
2.6 KiB
"use strict"; |
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/* |
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Copyright 2019 Google LLC |
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Use of this source code is governed by an MIT-style |
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license that can be found in the LICENSE file or at |
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https://opensource.org/licenses/MIT. |
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*/ |
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var __importDefault = (this && this.__importDefault) || function (mod) { |
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return (mod && mod.__esModule) ? mod : { "default": mod }; |
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}; |
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Object.defineProperty(exports, "__esModule", { value: true }); |
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exports.ModuleRegistry = void 0; |
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const common_tags_1 = require("common-tags"); |
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const upath_1 = __importDefault(require("upath")); |
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/** |
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* Class for keeping track of which Workbox modules are used by the generated |
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* service worker script. |
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* |
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* @private |
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*/ |
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class ModuleRegistry { |
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/** |
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* @private |
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*/ |
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constructor() { |
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this._modulesUsed = new Map(); |
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} |
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/** |
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* @return {Array<string>} A list of all of the import statements that are |
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* needed for the modules being used. |
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* @private |
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*/ |
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getImportStatements() { |
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const workboxModuleImports = []; |
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for (const [localName, { moduleName, pkg }] of this._modulesUsed) { |
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// By default require.resolve returns the resolved path of the 'main' |
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// field, which might be deeper than the package root. To work around |
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// this, we can find the package's root by resolving its package.json and |
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// strip the '/package.json' from the resolved path. |
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const pkgJsonPath = require.resolve(`${pkg}/package.json`); |
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const pkgRoot = upath_1.default.dirname(pkgJsonPath); |
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const importStatement = (0, common_tags_1.oneLine) `import {${moduleName} as ${localName}} from |
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'${pkgRoot}/${moduleName}.mjs';`; |
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workboxModuleImports.push(importStatement); |
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} |
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return workboxModuleImports; |
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} |
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/** |
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* @param {string} pkg The workbox package that the module belongs to. |
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* @param {string} moduleName The name of the module to import. |
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* @return {string} The local variable name that corresponds to that module. |
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* @private |
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*/ |
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getLocalName(pkg, moduleName) { |
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return `${pkg.replace(/-/g, '_')}_${moduleName}`; |
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} |
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/** |
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* @param {string} pkg The workbox package that the module belongs to. |
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* @param {string} moduleName The name of the module to import. |
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* @return {string} The local variable name that corresponds to that module. |
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* @private |
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*/ |
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use(pkg, moduleName) { |
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const localName = this.getLocalName(pkg, moduleName); |
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this._modulesUsed.set(localName, { moduleName, pkg }); |
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return localName; |
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} |
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} |
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exports.ModuleRegistry = ModuleRegistry;
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