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feat: add webpack as framework; use shared bundles
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| Original file line number | Diff line number | Diff line change |
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| @@ -1,6 +1,5 @@ | ||
| .eslintcache | ||
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| lib | ||
| coverage | ||
| node_modules | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,181 @@ | ||
| /* eslint-disable no-console */ | ||
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| const path = require('path'); | ||
| const fs = require('fs'); | ||
| const os = require('os'); | ||
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| const webpack = require('webpack'); | ||
| const merge = require('webpack-merge'); | ||
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| class KarmaSyncPlugin { | ||
| constructor(options) { | ||
| this.karmaEmitter = options.karmaEmitter; | ||
| this.controller = options.controller; | ||
| } | ||
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| apply(compiler) { | ||
| this.compiler = compiler; | ||
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| // webpack bundles are finished | ||
| compiler.hooks.done.tap('KarmaSyncPlugin', async (stats) => { | ||
| // read generated file content and store for karma preprocessor | ||
| this.controller.bundlesContent = {}; | ||
| stats.toJson().assets.forEach((webpackFileObj) => { | ||
| const filePath = `${compiler.options.output.path}/${ | ||
| webpackFileObj.name | ||
| }`; | ||
| this.controller.bundlesContent[webpackFileObj.name] = fs.readFileSync( | ||
| filePath, | ||
| 'utf-8' | ||
| ); | ||
| }); | ||
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| // karma refresh | ||
| this.karmaEmitter.refreshFiles(); | ||
| }); | ||
| } | ||
| } | ||
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| const defaultWebpackOptions = { | ||
| mode: 'development', | ||
| output: { | ||
| filename: '[name].js', | ||
| path: path.join(os.tmpdir(), '_karma_webpack_'), | ||
| }, | ||
| stats: { | ||
| modules: false, | ||
| colors: true, | ||
| }, | ||
| watch: false, | ||
| optimization: { | ||
| runtimeChunk: 'single', | ||
| splitChunks: { | ||
| chunks: 'all', | ||
| minSize: 0, | ||
| cacheGroups: { | ||
| commons: { | ||
| name: 'commons', | ||
| chunks: 'initial', | ||
| minChunks: 1, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| plugins: [], | ||
| // Something like this will be auto added by this.configure() | ||
| // entry: { | ||
| // 'foo-one.test.js': 'path/to/test/foo-one.test.js', | ||
| // 'foo-two.test.js': 'path/to/test/foo-two.test.js', | ||
| // }, | ||
| // plugins: [ | ||
| // new KarmaSyncPlugin() | ||
| // ], | ||
| }; | ||
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| class KarmaWebpackController { | ||
| set webpackOptions(options) { | ||
| this.__webpackOptions = options; | ||
| } | ||
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| get webpackOptions() { | ||
| return this.__webpackOptions; | ||
| } | ||
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| set karmaEmitter(emitter) { | ||
| this.__karmaEmitter = emitter; | ||
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| this.__webpackOptions.plugins.push( | ||
| new KarmaSyncPlugin({ | ||
| karmaEmitter: emitter, | ||
| controller: this, | ||
| }) | ||
| ); | ||
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| emitter.on('exit', (done) => { | ||
| this.onKarmaExit(); | ||
| done(); | ||
| }); | ||
| } | ||
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| get karmaEmitter() { | ||
| return this.__karmaEmitter; | ||
| } | ||
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| get outputPath() { | ||
| return this.webpackOptions.output.path; | ||
| } | ||
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| constructor() { | ||
| this.isActive = false; | ||
| this.bundlesContent = {}; | ||
| this.__debounce = false; | ||
| this.webpackOptions = defaultWebpackOptions; | ||
| } | ||
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| updateWebpackOptions(newOptions) { | ||
| this.webpackOptions = merge(this.webpackOptions, newOptions); | ||
| } | ||
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| async bundle() { | ||
| if (this.isActive === false && this.__debounce === false) { | ||
| console.log('Webpack bundling...'); | ||
| this._activePromise = this._bundle(); | ||
| } | ||
| return this._activePromise; | ||
| } | ||
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| async _bundle() { | ||
| this.isActive = true; | ||
| this.__debounce = true; | ||
| this.compiler = webpack(this.webpackOptions); | ||
| return new Promise((resolve) => { | ||
| if (this.webpackOptions.watch === true) { | ||
| console.log('Webpack starts watching...'); | ||
| this.webpackFileWatcher = this.compiler.watch({}, (err, stats) => | ||
| this.handleBuildResult(err, stats, resolve) | ||
| ); | ||
| } else { | ||
| this.compiler.run((err, stats) => | ||
| this.handleBuildResult(err, stats, resolve) | ||
| ); | ||
| } | ||
| }); | ||
| } | ||
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| handleBuildResult(err, stats, resolve) { | ||
| if (err) { | ||
| console.error(err.stack || err); | ||
| if (err.details) { | ||
| console.error(err.details); | ||
| } | ||
| return; | ||
| } | ||
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| const info = stats.toJson(); | ||
| if (stats.hasErrors()) { | ||
| console.error(info.errors); | ||
| } | ||
| if (stats.hasWarnings()) { | ||
| console.warn(info.warnings); | ||
| } | ||
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| this.__debounce = setTimeout(() => (this.__debounce = false), 100); | ||
| this.isActive = false; | ||
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| console.log(stats.toString(this.webpackOptions.stats)); | ||
| resolve(); | ||
| } | ||
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| onKarmaExit() { | ||
| if (this.webpackFileWatcher) { | ||
| this.webpackFileWatcher.close(); | ||
| console.log('Webpack stopped watching.'); | ||
| } | ||
| } | ||
| } | ||
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| module.exports = { | ||
| KarmaSyncPlugin, | ||
| KarmaWebpackController, | ||
| defaultWebpackOptions, | ||
| }; |
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