Created
December 29, 2022 12:33
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Plugin for collect routes path by entry points
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| const minimatch = require('minimatch') | |
| const path = require('path') | |
| const PLUGIN_NAME = 'CollectEntriesRoutesPlugin' | |
| const routeMap = new Map() | |
| /** @typedef {import("webpack").Compiler} Compiler */ | |
| /** | |
| * @typedef {Object} Options | |
| * @property {() => boolean} filter | |
| * @property {string} routeFileName | |
| */ | |
| class CollectEntriesRoutes { | |
| /** @type {Options} */ | |
| options | |
| /** | |
| * | |
| * @param {Options} options | |
| */ | |
| constructor(options) { | |
| this.options = options | |
| this.modules = {} | |
| this.parserByDeps = {} | |
| this.entriesWithBlobTarget = {} | |
| this.targetBlobs = [] | |
| } | |
| createGlobPatternFrom(pathOfFile, file) { | |
| let blob = pathOfFile | |
| if (path.isAbsolute(pathOfFile) === false) { | |
| blob = blob.replace('./', '**/') | |
| } | |
| return `${blob}/${file}**` | |
| } | |
| extractParser(parser) { | |
| const { options } = this | |
| parser.hooks.exportSpecifier.tap(PLUGIN_NAME, (statement, identifierName, exportName) => { | |
| if (!parser.state) return | |
| if (!parser.state.module) return | |
| if (!minimatch(parser.state.module.resource, `**/${options.routeFileName}**`)) return | |
| const { module } = parser.state | |
| const { issuer } = module | |
| if (issuer && this.entriesWithBlobTarget[issuer.context] && module.context !== issuer.context) { | |
| const { declaration } = statement | |
| for (const node of declaration.declarations) { | |
| if (node.id.type !== 'Identifier' && node.id.name !== exportName) continue | |
| this.parserByDeps[module.context] = { exportNode: node, parser } | |
| } | |
| } | |
| }) | |
| } | |
| walkExport(exportNode) { | |
| const { init } = exportNode | |
| let arrayOfPaths = [] | |
| if (init.type !== 'ArrayExpression') return arrayOfPaths | |
| const { elements } = init | |
| for (const element of elements) { | |
| if (element.type === 'ObjectExpression') { | |
| let object = {} | |
| for (let property of element.properties) { | |
| if (property.type !== 'Property' && property.key.type !== 'Identifier') continue | |
| if (property.value.type === 'Literal') { | |
| object[property.key.name] = property.value.value | |
| continue | |
| } | |
| if (property.value.type === 'MemberExpression') { | |
| object[property.key.name] = '' // ????????????????????????????? | |
| continue | |
| } | |
| } | |
| arrayOfPaths.push(object) | |
| } | |
| } | |
| return arrayOfPaths | |
| } | |
| onEntryOption(context, entry) { | |
| const { options } = this | |
| for (const key of Object.keys(entry)) { | |
| const indexOfEntry = Array.isArray(entry[key].import) | |
| ? entry[key].import[entry[key].import.length - 1] | |
| : entry[key].import | |
| const entryDirname = path.dirname(indexOfEntry) | |
| const blobByDirname = this.createGlobPatternFrom(entryDirname, options.routeFileName) | |
| this.entriesWithBlobTarget[entryDirname] = { | |
| blobByDirname, | |
| entryDirname, | |
| name: key, | |
| } | |
| this.targetBlobs.push(blobByDirname) | |
| } | |
| } | |
| onFinishModules(modules, compilation) { | |
| const { options } = this | |
| for (const module of modules) { | |
| if (module && module.resource && this.targetBlobs.some((item) => minimatch(module.resource, item))) { | |
| routeMap.set(module.context, new Set()) | |
| let deps = [] | |
| for (const dependencyDeclaration of module.dependencies) { | |
| const dependency = compilation.moduleGraph.getModule(dependencyDeclaration) | |
| if ( | |
| dependency && | |
| dependencyDeclaration.name && | |
| dependency.resource && | |
| minimatch(dependency.resource, `**/${options.routeFileName}**`) | |
| ) { | |
| deps.push(dependency) | |
| } | |
| } | |
| for (const dep of deps) { | |
| if (!this.parserByDeps[dep.context]) continue | |
| const { exportNode } = this.parserByDeps[dep.context] | |
| const paths = this.walkExport(exportNode) | |
| const set = routeMap.get(module.context) | |
| for (const path of paths) { | |
| set.add(path.path) | |
| } | |
| routeMap.set(module.context, set) | |
| } | |
| } | |
| } | |
| } | |
| onOptimizeModules(modules) { | |
| const { options } = this | |
| for (const module of modules) { | |
| if ( | |
| options.to && | |
| module._source && | |
| module._source._value && | |
| new RegExp(options.to, 'gi').test(module._source._value) | |
| ) { | |
| const objectToReplace = {} | |
| for (const [key, value] of routeMap) { | |
| const entryName = this.entriesWithBlobTarget[key]?.name ?? path.dirname(key) | |
| objectToReplace[entryName] = Array.from(value) | |
| } | |
| module._source._value = module._source._value.replace( | |
| new RegExp(options.to, 'gi'), | |
| JSON.stringify( | |
| Object.keys(objectToReplace) | |
| .sort() | |
| .reduce((obj, key) => { | |
| obj[key] = objectToReplace[key] | |
| return obj | |
| }, {}) | |
| ) | |
| ) | |
| } | |
| } | |
| } | |
| /** | |
| * Apply the plugin | |
| * @param {Compiler} compiler the compiler instance | |
| * @returns {void} | |
| */ | |
| apply(compiler) { | |
| compiler.hooks.entryOption.tap(PLUGIN_NAME, (context, entry) => this.onEntryOption(context, entry)) | |
| compiler.hooks.normalModuleFactory.tap(PLUGIN_NAME, (factory) => { | |
| factory.hooks.parser.for('javascript/auto').tap(PLUGIN_NAME, (parser) => { | |
| this.extractParser(parser) | |
| }) | |
| }) | |
| compiler.hooks.compilation.tap(PLUGIN_NAME, (compilation) => { | |
| compilation.hooks.finishModules.tapAsync(PLUGIN_NAME, (modules, done) => { | |
| this.onFinishModules(modules, compilation) | |
| done() | |
| }) | |
| compilation.hooks.optimizeModules.tap(PLUGIN_NAME, (modules) => this.onOptimizeModules(modules)) | |
| }) | |
| } | |
| } | |
| module.exports = CollectEntriesRoutes |
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