292 lines
9.6 KiB
JavaScript
292 lines
9.6 KiB
JavaScript
|
/*
|
||
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
||
|
|
*/
|
||
|
|
|
||
|
|
"use strict";
|
||
|
|
|
||
|
|
const RuntimeGlobals = require("../RuntimeGlobals");
|
||
|
|
const RuntimeModule = require("../RuntimeModule");
|
||
|
|
const Template = require("../Template");
|
||
|
|
const {
|
||
|
|
chunkHasJs,
|
||
|
|
getChunkFilenameTemplate
|
||
|
|
} = require("../javascript/JavascriptModulesPlugin");
|
||
|
|
const { getInitialChunkIds } = require("../javascript/StartupHelpers");
|
||
|
|
const compileBooleanMatcher = require("../util/compileBooleanMatcher");
|
||
|
|
const { getUndoPath } = require("../util/identifier");
|
||
|
|
|
||
|
|
/** @typedef {import("../Chunk")} Chunk */
|
||
|
|
|
||
|
|
class ReadFileChunkLoadingRuntimeModule extends RuntimeModule {
|
||
|
|
constructor(runtimeRequirements) {
|
||
|
|
super("readFile chunk loading", RuntimeModule.STAGE_ATTACH);
|
||
|
|
this.runtimeRequirements = runtimeRequirements;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Chunk} chunk chunk
|
||
|
|
* @param {string} rootOutputDir root output directory
|
||
|
|
* @returns {string} generated code
|
||
|
|
*/
|
||
|
|
_generateBaseUri(chunk, rootOutputDir) {
|
||
|
|
const options = chunk.getEntryOptions();
|
||
|
|
if (options && options.baseUri) {
|
||
|
|
return `${RuntimeGlobals.baseURI} = ${JSON.stringify(options.baseUri)};`;
|
||
|
|
}
|
||
|
|
|
||
|
|
return `${RuntimeGlobals.baseURI} = require("url").pathToFileURL(${
|
||
|
|
rootOutputDir
|
||
|
|
? `__dirname + ${JSON.stringify("/" + rootOutputDir)}`
|
||
|
|
: "__filename"
|
||
|
|
});`;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @returns {string} runtime code
|
||
|
|
*/
|
||
|
|
generate() {
|
||
|
|
const { chunkGraph, chunk } = this;
|
||
|
|
const { runtimeTemplate } = this.compilation;
|
||
|
|
const fn = RuntimeGlobals.ensureChunkHandlers;
|
||
|
|
const withBaseURI = this.runtimeRequirements.has(RuntimeGlobals.baseURI);
|
||
|
|
const withExternalInstallChunk = this.runtimeRequirements.has(
|
||
|
|
RuntimeGlobals.externalInstallChunk
|
||
|
|
);
|
||
|
|
const withOnChunkLoad = this.runtimeRequirements.has(
|
||
|
|
RuntimeGlobals.onChunksLoaded
|
||
|
|
);
|
||
|
|
const withLoading = this.runtimeRequirements.has(
|
||
|
|
RuntimeGlobals.ensureChunkHandlers
|
||
|
|
);
|
||
|
|
const withHmr = this.runtimeRequirements.has(
|
||
|
|
RuntimeGlobals.hmrDownloadUpdateHandlers
|
||
|
|
);
|
||
|
|
const withHmrManifest = this.runtimeRequirements.has(
|
||
|
|
RuntimeGlobals.hmrDownloadManifest
|
||
|
|
);
|
||
|
|
const conditionMap = chunkGraph.getChunkConditionMap(chunk, chunkHasJs);
|
||
|
|
const hasJsMatcher = compileBooleanMatcher(conditionMap);
|
||
|
|
const initialChunkIds = getInitialChunkIds(chunk, chunkGraph, chunkHasJs);
|
||
|
|
|
||
|
|
const outputName = this.compilation.getPath(
|
||
|
|
getChunkFilenameTemplate(chunk, this.compilation.outputOptions),
|
||
|
|
{
|
||
|
|
chunk,
|
||
|
|
contentHashType: "javascript"
|
||
|
|
}
|
||
|
|
);
|
||
|
|
const rootOutputDir = getUndoPath(
|
||
|
|
outputName,
|
||
|
|
this.compilation.outputOptions.path,
|
||
|
|
false
|
||
|
|
);
|
||
|
|
|
||
|
|
const stateExpression = withHmr
|
||
|
|
? `${RuntimeGlobals.hmrRuntimeStatePrefix}_readFileVm`
|
||
|
|
: undefined;
|
||
|
|
|
||
|
|
return Template.asString([
|
||
|
|
withBaseURI
|
||
|
|
? this._generateBaseUri(chunk, rootOutputDir)
|
||
|
|
: "// no baseURI",
|
||
|
|
"",
|
||
|
|
"// object to store loaded chunks",
|
||
|
|
'// "0" means "already loaded", Promise means loading',
|
||
|
|
`var installedChunks = ${
|
||
|
|
stateExpression ? `${stateExpression} = ${stateExpression} || ` : ""
|
||
|
|
}{`,
|
||
|
|
Template.indent(
|
||
|
|
Array.from(initialChunkIds, id => `${JSON.stringify(id)}: 0`).join(
|
||
|
|
",\n"
|
||
|
|
)
|
||
|
|
),
|
||
|
|
"};",
|
||
|
|
"",
|
||
|
|
withOnChunkLoad
|
||
|
|
? `${
|
||
|
|
RuntimeGlobals.onChunksLoaded
|
||
|
|
}.readFileVm = ${runtimeTemplate.returningFunction(
|
||
|
|
"installedChunks[chunkId] === 0",
|
||
|
|
"chunkId"
|
||
|
|
)};`
|
||
|
|
: "// no on chunks loaded",
|
||
|
|
"",
|
||
|
|
withLoading || withExternalInstallChunk
|
||
|
|
? `var installChunk = ${runtimeTemplate.basicFunction("chunk", [
|
||
|
|
"var moreModules = chunk.modules, chunkIds = chunk.ids, runtime = chunk.runtime;",
|
||
|
|
"for(var moduleId in moreModules) {",
|
||
|
|
Template.indent([
|
||
|
|
`if(${RuntimeGlobals.hasOwnProperty}(moreModules, moduleId)) {`,
|
||
|
|
Template.indent([
|
||
|
|
`${RuntimeGlobals.moduleFactories}[moduleId] = moreModules[moduleId];`
|
||
|
|
]),
|
||
|
|
"}"
|
||
|
|
]),
|
||
|
|
"}",
|
||
|
|
`if(runtime) runtime(__webpack_require__);`,
|
||
|
|
"for(var i = 0; i < chunkIds.length; i++) {",
|
||
|
|
Template.indent([
|
||
|
|
"if(installedChunks[chunkIds[i]]) {",
|
||
|
|
Template.indent(["installedChunks[chunkIds[i]][0]();"]),
|
||
|
|
"}",
|
||
|
|
"installedChunks[chunkIds[i]] = 0;"
|
||
|
|
]),
|
||
|
|
"}",
|
||
|
|
withOnChunkLoad ? `${RuntimeGlobals.onChunksLoaded}();` : ""
|
||
|
|
])};`
|
||
|
|
: "// no chunk install function needed",
|
||
|
|
"",
|
||
|
|
withLoading
|
||
|
|
? Template.asString([
|
||
|
|
"// ReadFile + VM.run chunk loading for javascript",
|
||
|
|
`${fn}.readFileVm = function(chunkId, promises) {`,
|
||
|
|
hasJsMatcher !== false
|
||
|
|
? Template.indent([
|
||
|
|
"",
|
||
|
|
"var installedChunkData = installedChunks[chunkId];",
|
||
|
|
'if(installedChunkData !== 0) { // 0 means "already installed".',
|
||
|
|
Template.indent([
|
||
|
|
'// array of [resolve, reject, promise] means "currently loading"',
|
||
|
|
"if(installedChunkData) {",
|
||
|
|
Template.indent(["promises.push(installedChunkData[2]);"]),
|
||
|
|
"} else {",
|
||
|
|
Template.indent([
|
||
|
|
hasJsMatcher === true
|
||
|
|
? "if(true) { // all chunks have JS"
|
||
|
|
: `if(${hasJsMatcher("chunkId")}) {`,
|
||
|
|
Template.indent([
|
||
|
|
"// load the chunk and return promise to it",
|
||
|
|
"var promise = new Promise(function(resolve, reject) {",
|
||
|
|
Template.indent([
|
||
|
|
"installedChunkData = installedChunks[chunkId] = [resolve, reject];",
|
||
|
|
`var filename = require('path').join(__dirname, ${JSON.stringify(
|
||
|
|
rootOutputDir
|
||
|
|
)} + ${
|
||
|
|
RuntimeGlobals.getChunkScriptFilename
|
||
|
|
}(chunkId));`,
|
||
|
|
"require('fs').readFile(filename, 'utf-8', function(err, content) {",
|
||
|
|
Template.indent([
|
||
|
|
"if(err) return reject(err);",
|
||
|
|
"var chunk = {};",
|
||
|
|
"require('vm').runInThisContext('(function(exports, require, __dirname, __filename) {' + content + '\\n})', filename)" +
|
||
|
|
"(chunk, require, require('path').dirname(filename), filename);",
|
||
|
|
"installChunk(chunk);"
|
||
|
|
]),
|
||
|
|
"});"
|
||
|
|
]),
|
||
|
|
"});",
|
||
|
|
"promises.push(installedChunkData[2] = promise);"
|
||
|
|
]),
|
||
|
|
"} else installedChunks[chunkId] = 0;"
|
||
|
|
]),
|
||
|
|
"}"
|
||
|
|
]),
|
||
|
|
"}"
|
||
|
|
])
|
||
|
|
: Template.indent(["installedChunks[chunkId] = 0;"]),
|
||
|
|
"};"
|
||
|
|
])
|
||
|
|
: "// no chunk loading",
|
||
|
|
"",
|
||
|
|
withExternalInstallChunk
|
||
|
|
? Template.asString([
|
||
|
|
"module.exports = __webpack_require__;",
|
||
|
|
`${RuntimeGlobals.externalInstallChunk} = installChunk;`
|
||
|
|
])
|
||
|
|
: "// no external install chunk",
|
||
|
|
"",
|
||
|
|
withHmr
|
||
|
|
? Template.asString([
|
||
|
|
"function loadUpdateChunk(chunkId, updatedModulesList) {",
|
||
|
|
Template.indent([
|
||
|
|
"return new Promise(function(resolve, reject) {",
|
||
|
|
Template.indent([
|
||
|
|
`var filename = require('path').join(__dirname, ${JSON.stringify(
|
||
|
|
rootOutputDir
|
||
|
|
)} + ${RuntimeGlobals.getChunkUpdateScriptFilename}(chunkId));`,
|
||
|
|
"require('fs').readFile(filename, 'utf-8', function(err, content) {",
|
||
|
|
Template.indent([
|
||
|
|
"if(err) return reject(err);",
|
||
|
|
"var update = {};",
|
||
|
|
"require('vm').runInThisContext('(function(exports, require, __dirname, __filename) {' + content + '\\n})', filename)" +
|
||
|
|
"(update, require, require('path').dirname(filename), filename);",
|
||
|
|
"var updatedModules = update.modules;",
|
||
|
|
"var runtime = update.runtime;",
|
||
|
|
"for(var moduleId in updatedModules) {",
|
||
|
|
Template.indent([
|
||
|
|
`if(${RuntimeGlobals.hasOwnProperty}(updatedModules, moduleId)) {`,
|
||
|
|
Template.indent([
|
||
|
|
`currentUpdate[moduleId] = updatedModules[moduleId];`,
|
||
|
|
"if(updatedModulesList) updatedModulesList.push(moduleId);"
|
||
|
|
]),
|
||
|
|
"}"
|
||
|
|
]),
|
||
|
|
"}",
|
||
|
|
"if(runtime) currentUpdateRuntime.push(runtime);",
|
||
|
|
"resolve();"
|
||
|
|
]),
|
||
|
|
"});"
|
||
|
|
]),
|
||
|
|
"});"
|
||
|
|
]),
|
||
|
|
"}",
|
||
|
|
"",
|
||
|
|
Template.getFunctionContent(
|
||
|
|
require("../hmr/JavascriptHotModuleReplacement.runtime.js")
|
||
|
|
)
|
||
|
|
.replace(/\$key\$/g, "readFileVm")
|
||
|
|
.replace(/\$installedChunks\$/g, "installedChunks")
|
||
|
|
.replace(/\$loadUpdateChunk\$/g, "loadUpdateChunk")
|
||
|
|
.replace(/\$moduleCache\$/g, RuntimeGlobals.moduleCache)
|
||
|
|
.replace(/\$moduleFactories\$/g, RuntimeGlobals.moduleFactories)
|
||
|
|
.replace(
|
||
|
|
/\$ensureChunkHandlers\$/g,
|
||
|
|
RuntimeGlobals.ensureChunkHandlers
|
||
|
|
)
|
||
|
|
.replace(/\$hasOwnProperty\$/g, RuntimeGlobals.hasOwnProperty)
|
||
|
|
.replace(/\$hmrModuleData\$/g, RuntimeGlobals.hmrModuleData)
|
||
|
|
.replace(
|
||
|
|
/\$hmrDownloadUpdateHandlers\$/g,
|
||
|
|
RuntimeGlobals.hmrDownloadUpdateHandlers
|
||
|
|
)
|
||
|
|
.replace(
|
||
|
|
/\$hmrInvalidateModuleHandlers\$/g,
|
||
|
|
RuntimeGlobals.hmrInvalidateModuleHandlers
|
||
|
|
)
|
||
|
|
])
|
||
|
|
: "// no HMR",
|
||
|
|
"",
|
||
|
|
withHmrManifest
|
||
|
|
? Template.asString([
|
||
|
|
`${RuntimeGlobals.hmrDownloadManifest} = function() {`,
|
||
|
|
Template.indent([
|
||
|
|
"return new Promise(function(resolve, reject) {",
|
||
|
|
Template.indent([
|
||
|
|
`var filename = require('path').join(__dirname, ${JSON.stringify(
|
||
|
|
rootOutputDir
|
||
|
|
)} + ${RuntimeGlobals.getUpdateManifestFilename}());`,
|
||
|
|
"require('fs').readFile(filename, 'utf-8', function(err, content) {",
|
||
|
|
Template.indent([
|
||
|
|
"if(err) {",
|
||
|
|
Template.indent([
|
||
|
|
'if(err.code === "ENOENT") return resolve();',
|
||
|
|
"return reject(err);"
|
||
|
|
]),
|
||
|
|
"}",
|
||
|
|
"try { resolve(JSON.parse(content)); }",
|
||
|
|
"catch(e) { reject(e); }"
|
||
|
|
]),
|
||
|
|
"});"
|
||
|
|
]),
|
||
|
|
"});"
|
||
|
|
]),
|
||
|
|
"}"
|
||
|
|
])
|
||
|
|
: "// no HMR manifest"
|
||
|
|
]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = ReadFileChunkLoadingRuntimeModule;
|