@angular-devkit/build-angular
Version:
Angular Webpack Build Facade
180 lines • 24.1 kB
JavaScript
;
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.ScriptsWebpackPlugin = void 0;
const loader_utils_1 = require("loader-utils");
const path = __importStar(require("path"));
const webpack_1 = require("webpack");
const error_1 = require("../../../utils/error");
const webpack_diagnostics_1 = require("../../../utils/webpack-diagnostics");
const Entrypoint = require('webpack/lib/Entrypoint');
/**
* The name of the plugin provided to Webpack when tapping Webpack compiler hooks.
*/
const PLUGIN_NAME = 'scripts-webpack-plugin';
function addDependencies(compilation, scripts) {
for (const script of scripts) {
compilation.fileDependencies.add(script);
}
}
class ScriptsWebpackPlugin {
constructor(options) {
this.options = options;
}
async shouldSkip(compilation, scripts) {
if (this._lastBuildTime == undefined) {
this._lastBuildTime = Date.now();
return false;
}
for (const script of scripts) {
const scriptTime = await new Promise((resolve, reject) => {
compilation.fileSystemInfo.getFileTimestamp(script, (error, entry) => {
if (error) {
reject(error);
return;
}
resolve(entry && typeof entry !== 'string' ? entry.safeTime : undefined);
});
});
if (!scriptTime || scriptTime > this._lastBuildTime) {
this._lastBuildTime = Date.now();
return false;
}
}
return true;
}
_insertOutput(compilation, { filename, source }, cached = false) {
const chunk = new webpack_1.Chunk(this.options.name);
chunk.rendered = !cached;
chunk.id = this.options.name;
chunk.ids = [chunk.id];
chunk.files.add(filename);
const entrypoint = new Entrypoint(this.options.name);
entrypoint.pushChunk(chunk);
chunk.addGroup(entrypoint);
compilation.entrypoints.set(this.options.name, entrypoint);
compilation.chunks.add(chunk);
compilation.assets[filename] = source;
compilation.hooks.chunkAsset.call(chunk, filename);
}
apply(compiler) {
if (this.options.scripts.length === 0) {
return;
}
compiler.hooks.thisCompilation.tap(PLUGIN_NAME, (compilation) => {
// Use the resolver from the compilation instead of compiler.
// Using the latter will causes a lot of `DescriptionFileUtils.loadDescriptionFile` calls.
// See: https://github.com/angular/angular-cli/issues/24634#issuecomment-1425782668
const resolver = compilation.resolverFactory.get('normal', {
preferRelative: true,
useSyncFileSystemCalls: true,
// Caching must be disabled because it causes the resolver to become async after a rebuild.
cache: false,
});
const scripts = [];
for (const script of this.options.scripts) {
try {
const resolvedPath = resolver.resolveSync({}, this.options.basePath, script);
if (resolvedPath) {
scripts.push(resolvedPath);
}
else {
(0, webpack_diagnostics_1.addError)(compilation, `Cannot resolve '${script}'.`);
}
}
catch (error) {
(0, error_1.assertIsError)(error);
(0, webpack_diagnostics_1.addError)(compilation, error.message);
}
}
compilation.hooks.additionalAssets.tapPromise(PLUGIN_NAME, async () => {
if (await this.shouldSkip(compilation, scripts)) {
if (this._cachedOutput) {
this._insertOutput(compilation, this._cachedOutput, true);
}
addDependencies(compilation, scripts);
return;
}
const sourceGetters = scripts.map((fullPath) => {
return new Promise((resolve, reject) => {
compilation.inputFileSystem.readFile(fullPath, (err, data) => {
if (err) {
reject(err);
return;
}
const content = data?.toString() ?? '';
let source;
if (this.options.sourceMap) {
// TODO: Look for source map file (for '.min' scripts, etc.)
let adjustedPath = fullPath;
if (this.options.basePath) {
adjustedPath = path.relative(this.options.basePath, fullPath);
}
source = new webpack_1.sources.OriginalSource(content, adjustedPath);
}
else {
source = new webpack_1.sources.RawSource(content);
}
resolve(source);
});
});
});
const sources = await Promise.all(sourceGetters);
const concatSource = new webpack_1.sources.ConcatSource();
sources.forEach((source) => {
concatSource.add(source);
concatSource.add('\n;');
});
const combinedSource = new webpack_1.sources.CachedSource(concatSource);
const output = { filename: this.options.filename, source: combinedSource };
this._insertOutput(compilation, output);
this._cachedOutput = output;
addDependencies(compilation, scripts);
});
compilation.hooks.processAssets.tapPromise({
name: PLUGIN_NAME,
stage: compiler.webpack.Compilation.PROCESS_ASSETS_STAGE_DEV_TOOLING,
}, async () => {
const assetName = this.options.filename;
const asset = compilation.getAsset(assetName);
if (asset) {
const interpolatedFilename = (0, loader_utils_1.interpolateName)({ resourcePath: 'scripts.js' }, assetName, { content: asset.source.source() });
if (assetName !== interpolatedFilename) {
compilation.renameAsset(assetName, interpolatedFilename);
}
}
});
});
}
}
exports.ScriptsWebpackPlugin = ScriptsWebpackPlugin;
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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport { interpolateName } from 'loader-utils';\nimport * as path from 'path';\nimport { Chunk, Compilation, Compiler, sources as webpackSources } from 'webpack';\nimport { assertIsError } from '../../../utils/error';\nimport { addError } from '../../../utils/webpack-diagnostics';\n\nconst Entrypoint = require('webpack/lib/Entrypoint');\n\n/**\n * The name of the plugin provided to Webpack when tapping Webpack compiler hooks.\n */\nconst PLUGIN_NAME = 'scripts-webpack-plugin';\n\nexport interface ScriptsWebpackPluginOptions {\n  name: string;\n  sourceMap?: boolean;\n  scripts: string[];\n  filename: string;\n  basePath: string;\n}\n\ninterface ScriptOutput {\n  filename: string;\n  source: webpackSources.CachedSource;\n}\n\nfunction addDependencies(compilation: Compilation, scripts: string[]): void {\n  for (const script of scripts) {\n    compilation.fileDependencies.add(script);\n  }\n}\n\nexport class ScriptsWebpackPlugin {\n  private _lastBuildTime?: number;\n  private _cachedOutput?: ScriptOutput;\n\n  constructor(private options: ScriptsWebpackPluginOptions) {}\n\n  async shouldSkip(compilation: Compilation, scripts: string[]): Promise<boolean> {\n    if (this._lastBuildTime == undefined) {\n      this._lastBuildTime = Date.now();\n\n      return false;\n    }\n\n    for (const script of scripts) {\n      const scriptTime = await new Promise<number | undefined>((resolve, reject) => {\n        compilation.fileSystemInfo.getFileTimestamp(script, (error, entry) => {\n          if (error) {\n            reject(error);\n\n            return;\n          }\n\n          resolve(entry && typeof entry !== 'string' ? entry.safeTime : undefined);\n        });\n      });\n\n      if (!scriptTime || scriptTime > this._lastBuildTime) {\n        this._lastBuildTime = Date.now();\n\n        return false;\n      }\n    }\n\n    return true;\n  }\n\n  private _insertOutput(\n    compilation: Compilation,\n    { filename, source }: ScriptOutput,\n    cached = false,\n  ) {\n    const chunk = new Chunk(this.options.name);\n    chunk.rendered = !cached;\n    chunk.id = this.options.name;\n    chunk.ids = [chunk.id];\n    chunk.files.add(filename);\n\n    const entrypoint = new Entrypoint(this.options.name);\n    entrypoint.pushChunk(chunk);\n    chunk.addGroup(entrypoint);\n    compilation.entrypoints.set(this.options.name, entrypoint);\n    compilation.chunks.add(chunk);\n\n    compilation.assets[filename] = source;\n    compilation.hooks.chunkAsset.call(chunk, filename);\n  }\n\n  apply(compiler: Compiler): void {\n    if (this.options.scripts.length === 0) {\n      return;\n    }\n\n    compiler.hooks.thisCompilation.tap(PLUGIN_NAME, (compilation) => {\n      // Use the resolver from the compilation instead of compiler.\n      // Using the latter will causes a lot of `DescriptionFileUtils.loadDescriptionFile` calls.\n      // See: https://github.com/angular/angular-cli/issues/24634#issuecomment-1425782668\n      const resolver = compilation.resolverFactory.get('normal', {\n        preferRelative: true,\n        useSyncFileSystemCalls: true,\n        // Caching must be disabled because it causes the resolver to become async after a rebuild.\n        cache: false,\n      });\n\n      const scripts: string[] = [];\n\n      for (const script of this.options.scripts) {\n        try {\n          const resolvedPath = resolver.resolveSync({}, this.options.basePath, script);\n          if (resolvedPath) {\n            scripts.push(resolvedPath);\n          } else {\n            addError(compilation, `Cannot resolve '${script}'.`);\n          }\n        } catch (error) {\n          assertIsError(error);\n          addError(compilation, error.message);\n        }\n      }\n\n      compilation.hooks.additionalAssets.tapPromise(PLUGIN_NAME, async () => {\n        if (await this.shouldSkip(compilation, scripts)) {\n          if (this._cachedOutput) {\n            this._insertOutput(compilation, this._cachedOutput, true);\n          }\n\n          addDependencies(compilation, scripts);\n\n          return;\n        }\n\n        const sourceGetters = scripts.map((fullPath) => {\n          return new Promise<webpackSources.Source>((resolve, reject) => {\n            compilation.inputFileSystem.readFile(\n              fullPath,\n              (err?: Error | null, data?: string | Buffer) => {\n                if (err) {\n                  reject(err);\n\n                  return;\n                }\n\n                const content = data?.toString() ?? '';\n\n                let source;\n                if (this.options.sourceMap) {\n                  // TODO: Look for source map file (for '.min' scripts, etc.)\n\n                  let adjustedPath = fullPath;\n                  if (this.options.basePath) {\n                    adjustedPath = path.relative(this.options.basePath, fullPath);\n                  }\n                  source = new webpackSources.OriginalSource(content, adjustedPath);\n                } else {\n                  source = new webpackSources.RawSource(content);\n                }\n\n                resolve(source);\n              },\n            );\n          });\n        });\n\n        const sources = await Promise.all(sourceGetters);\n        const concatSource = new webpackSources.ConcatSource();\n        sources.forEach((source) => {\n          concatSource.add(source);\n          concatSource.add('\\n;');\n        });\n\n        const combinedSource = new webpackSources.CachedSource(concatSource);\n\n        const output = { filename: this.options.filename, source: combinedSource };\n        this._insertOutput(compilation, output);\n        this._cachedOutput = output;\n        addDependencies(compilation, scripts);\n      });\n      compilation.hooks.processAssets.tapPromise(\n        {\n          name: PLUGIN_NAME,\n          stage: compiler.webpack.Compilation.PROCESS_ASSETS_STAGE_DEV_TOOLING,\n        },\n        async () => {\n          const assetName = this.options.filename;\n          const asset = compilation.getAsset(assetName);\n          if (asset) {\n            const interpolatedFilename = interpolateName(\n              { resourcePath: 'scripts.js' },\n              assetName,\n              { content: asset.source.source() },\n            );\n            if (assetName !== interpolatedFilename) {\n              compilation.renameAsset(assetName, interpolatedFilename);\n            }\n          }\n        },\n      );\n    });\n  }\n}\n"]}