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feat: add EntryChunkPlugin to handle shebang and shims
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,218 @@ | ||
| import { createRequire } from 'node:module'; | ||
| import { | ||
| type RsbuildConfig, | ||
| type RsbuildPlugin, | ||
| type Rspack, | ||
| rspack, | ||
| } from '@rsbuild/core'; | ||
| import { | ||
| JS_EXTENSIONS_PATTERN, | ||
| REACT_DIRECTIVE_REGEX, | ||
| SHEBANG_PREFIX, | ||
| SHEBANG_REGEX, | ||
| } from '../constant'; | ||
| import { importMetaUrlShim } from './shims'; | ||
| const require = createRequire(import.meta.url); | ||
|
|
||
| const PLUGIN_NAME = 'rsbuild:entry'; | ||
|
|
||
| const matchFirstLine = (source: string, regex: RegExp) => { | ||
| const [firstLine] = source.split('\n'); | ||
| if (!firstLine) { | ||
| return false; | ||
| } | ||
| const matched = regex.exec(firstLine); | ||
| if (!matched) { | ||
| return false; | ||
| } | ||
|
|
||
| return matched[0]; | ||
| }; | ||
|
|
||
| class PostEntryPlugin { | ||
| private enabledImportMetaUrlShim: boolean; | ||
| private shebangEntries: Record<string, string> = {}; | ||
| private reactDirectives: Record<string, string> = {}; | ||
| private importMetaUrlShims: Record<string, { startsWithUseStrict: boolean }> = | ||
| {}; | ||
|
|
||
| constructor({ | ||
| importMetaUrlShim = true, | ||
| }: { | ||
| importMetaUrlShim: boolean; | ||
| }) { | ||
| this.enabledImportMetaUrlShim = importMetaUrlShim; | ||
| } | ||
|
|
||
| apply(compiler: Rspack.Compiler) { | ||
| compiler.hooks.entryOption.tap(PLUGIN_NAME, (_context, entries) => { | ||
| for (const name in entries) { | ||
| const entry = (entries as Rspack.EntryStaticNormalized)[name]; | ||
| if (!entry) continue; | ||
|
|
||
| let first: string | undefined; | ||
| if (Array.isArray(entry)) { | ||
| first = entry[0]; | ||
| } else if (Array.isArray(entry.import)) { | ||
| first = entry.import[0]; | ||
| } else if (typeof entry === 'string') { | ||
| first = entry; | ||
| } | ||
|
|
||
| if (typeof first !== 'string') continue; | ||
|
|
||
| const filename = first.split('?')[0]!; | ||
| const isJs = JS_EXTENSIONS_PATTERN.test(filename); | ||
| if (!isJs) continue; | ||
|
|
||
| const content = compiler.inputFileSystem!.readFileSync!(filename, { | ||
| encoding: 'utf-8', | ||
| }); | ||
|
|
||
| // Shebang | ||
| if (content.startsWith(SHEBANG_PREFIX)) { | ||
| const shebangMatch = matchFirstLine(content, SHEBANG_REGEX); | ||
| if (shebangMatch) { | ||
| this.shebangEntries[name] = shebangMatch; | ||
| } | ||
| } | ||
|
|
||
| // React directive | ||
| const reactDirective = matchFirstLine(content, REACT_DIRECTIVE_REGEX); | ||
| if (reactDirective) { | ||
| this.reactDirectives[name] = reactDirective; | ||
| } | ||
|
|
||
| // import.meta.url shim | ||
| if (this.enabledImportMetaUrlShim) { | ||
| this.importMetaUrlShims[name] = { | ||
| startsWithUseStrict: | ||
| // This is a hypothesis that no comments will occur before "use strict;". | ||
| // But it should cover most cases. | ||
| content.startsWith('use strict;') || | ||
| content.startsWith('"use strict";'), | ||
| }; | ||
| } | ||
| } | ||
| }); | ||
|
|
||
| compiler.hooks.thisCompilation.tap(PLUGIN_NAME, (compilation) => { | ||
| compilation.hooks.chunkAsset.tap(PLUGIN_NAME, (chunk, filename) => { | ||
| const isJs = JS_EXTENSIONS_PATTERN.test(filename); | ||
| if (!isJs) return; | ||
|
|
||
| const name = chunk.name; | ||
| if (!name) return; | ||
|
|
||
| const shebangEntry = this.shebangEntries[name]; | ||
| if (shebangEntry) { | ||
| this.shebangEntries[filename] = shebangEntry; | ||
| } | ||
|
|
||
| const reactDirective = this.reactDirectives[name]; | ||
| if (reactDirective) { | ||
| this.reactDirectives[filename] = reactDirective; | ||
| } | ||
|
|
||
| const importMetaUrlShimInfo = this.importMetaUrlShims[name]; | ||
| if (importMetaUrlShimInfo) { | ||
| this.importMetaUrlShims[filename] = importMetaUrlShimInfo; | ||
| } | ||
| }); | ||
| }); | ||
|
|
||
| compiler.hooks.make.tap(PLUGIN_NAME, (compilation) => { | ||
| compilation.hooks.processAssets.tap(PLUGIN_NAME, (assets) => { | ||
| const chunkAsset = Object.keys(assets); | ||
| for (const name of chunkAsset) { | ||
| if (this.enabledImportMetaUrlShim) { | ||
| compilation.updateAsset(name, (old) => { | ||
| const importMetaUrlShimInfo = this.importMetaUrlShims[name]; | ||
| if (importMetaUrlShimInfo) { | ||
| const replaceSource = new rspack.sources.ReplaceSource(old); | ||
|
|
||
| if (importMetaUrlShimInfo.startsWithUseStrict) { | ||
| replaceSource.replace( | ||
| 0, | ||
| 11, // 'use strict;'.length, | ||
| `"use strict";\n${importMetaUrlShim}`, | ||
| ); | ||
| } else { | ||
| replaceSource.insert(0, importMetaUrlShim); | ||
| } | ||
|
|
||
| return replaceSource; | ||
| } | ||
|
|
||
| return old; | ||
| }); | ||
| } | ||
| } | ||
| }); | ||
|
|
||
| compilation.hooks.processAssets.tap( | ||
| { | ||
| name: PLUGIN_NAME, | ||
| // Just after minify stage, to avoid from being minified. | ||
| stage: rspack.Compilation.PROCESS_ASSETS_STAGE_OPTIMIZE_SIZE + 1, | ||
| }, | ||
| (assets) => { | ||
| const chunkAsset = Object.keys(assets); | ||
| for (const name of chunkAsset) { | ||
| const shebangValue = this.shebangEntries[name]; | ||
| const reactDirectiveValue = this.reactDirectives[name]; | ||
|
|
||
| if (shebangValue || reactDirectiveValue) { | ||
| compilation.updateAsset(name, (old) => { | ||
| const replaceSource = new rspack.sources.ReplaceSource(old); | ||
| // Shebang | ||
| if (shebangValue) { | ||
| replaceSource.insert(0, `${shebangValue}\n`); | ||
| } | ||
|
|
||
| // React directives | ||
| if (reactDirectiveValue) { | ||
| replaceSource.insert(0, `${reactDirectiveValue}\n`); | ||
| } | ||
|
|
||
| return replaceSource; | ||
| }); | ||
| } | ||
| } | ||
| }, | ||
| ); | ||
| }); | ||
| } | ||
| } | ||
|
|
||
| const entryModuleLoaderPlugin = (): RsbuildPlugin => ({ | ||
| name: PLUGIN_NAME, | ||
| setup(api) { | ||
| api.modifyBundlerChain((config, { CHAIN_ID }) => { | ||
| const rule = config.module.rule(CHAIN_ID.RULE.JS); | ||
| rule | ||
| .use('shebang') | ||
| .loader(require.resolve('./entryModuleLoader.js')) | ||
| .options({}); | ||
| }); | ||
| }, | ||
| }); | ||
|
|
||
| export const composePostEntryChunkConfig = ({ | ||
| importMetaUrlShim, | ||
| }: { | ||
| importMetaUrlShim: boolean; | ||
| }): RsbuildConfig => { | ||
| return { | ||
| plugins: [entryModuleLoaderPlugin()], | ||
| tools: { | ||
| rspack: { | ||
| plugins: [ | ||
| new PostEntryPlugin({ | ||
| importMetaUrlShim: importMetaUrlShim, | ||
| }), | ||
| ], | ||
| }, | ||
| }, | ||
| }; | ||
| }; |
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