328 lines
13 KiB
JavaScript
328 lines
13 KiB
JavaScript
'use strict';
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
|
|
var _fs = require('fs');
|
|
|
|
var _fs2 = _interopRequireDefault(_fs);
|
|
|
|
var _path = require('path');
|
|
|
|
var _path2 = _interopRequireDefault(_path);
|
|
|
|
var _webpack = require('webpack');
|
|
|
|
var _webpack2 = _interopRequireDefault(_webpack);
|
|
|
|
var _webpackSources = require('webpack-sources');
|
|
|
|
var _webpackSources2 = _interopRequireDefault(_webpackSources);
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
|
|
|
const { ConcatSource, SourceMapSource, OriginalSource } = _webpackSources2.default;
|
|
const { Template, util: { createHash } } = _webpack2.default;
|
|
|
|
const NS = _path2.default.dirname(_fs2.default.realpathSync(__filename));
|
|
|
|
const pluginName = 'mini-css-extract-plugin';
|
|
|
|
const REGEXP_CHUNKHASH = /\[chunkhash(?::(\d+))?\]/i;
|
|
const REGEXP_CONTENTHASH = /\[contenthash(?::(\d+))?\]/i;
|
|
const REGEXP_NAME = /\[name\]/i;
|
|
|
|
class CssDependency extends _webpack2.default.Dependency {
|
|
constructor({ identifier, content, media, sourceMap }, context, identifierIndex) {
|
|
super();
|
|
this.identifier = identifier;
|
|
this.identifierIndex = identifierIndex;
|
|
this.content = content;
|
|
this.media = media;
|
|
this.sourceMap = sourceMap;
|
|
this.context = context;
|
|
}
|
|
|
|
getResourceIdentifier() {
|
|
return `css-module-${this.identifier}-${this.identifierIndex}`;
|
|
}
|
|
}
|
|
|
|
class CssDependencyTemplate {
|
|
apply() {}
|
|
}
|
|
|
|
class CssModule extends _webpack2.default.Module {
|
|
constructor(dependency) {
|
|
super(NS, dependency.context);
|
|
this._identifier = dependency.identifier;
|
|
this._identifierIndex = dependency.identifierIndex;
|
|
this.content = dependency.content;
|
|
this.media = dependency.media;
|
|
this.sourceMap = dependency.sourceMap;
|
|
}
|
|
|
|
// no source() so webpack doesn't do add stuff to the bundle
|
|
|
|
size() {
|
|
return this.content.length;
|
|
}
|
|
|
|
identifier() {
|
|
return `css ${this._identifier} ${this._identifierIndex}`;
|
|
}
|
|
|
|
readableIdentifier(requestShortener) {
|
|
return `css ${requestShortener.shorten(this._identifier)}${this._identifierIndex ? ` (${this._identifierIndex})` : ''}`;
|
|
}
|
|
|
|
nameForCondition() {
|
|
const resource = this._identifier.split('!').pop();
|
|
const idx = resource.indexOf('?');
|
|
if (idx >= 0) return resource.substring(0, idx);
|
|
return resource;
|
|
}
|
|
|
|
updateCacheModule(module) {
|
|
this.content = module.content;
|
|
this.media = module.media;
|
|
this.sourceMap = module.sourceMap;
|
|
}
|
|
|
|
needRebuild() {
|
|
return true;
|
|
}
|
|
|
|
build(options, compilation, resolver, fileSystem, callback) {
|
|
this.buildInfo = {};
|
|
this.buildMeta = {};
|
|
callback();
|
|
}
|
|
|
|
updateHash(hash) {
|
|
super.updateHash(hash);
|
|
hash.update(this.content);
|
|
hash.update(this.media || '');
|
|
hash.update(JSON.stringify(this.sourceMap || ''));
|
|
}
|
|
}
|
|
|
|
class CssModuleFactory {
|
|
create({ dependencies: [dependency] }, callback) {
|
|
callback(null, new CssModule(dependency));
|
|
}
|
|
}
|
|
|
|
class MiniCssExtractPlugin {
|
|
constructor(options) {
|
|
this.options = Object.assign({
|
|
filename: '[name].css'
|
|
}, options);
|
|
if (!this.options.chunkFilename) {
|
|
const { filename } = this.options;
|
|
const hasName = filename.includes('[name]');
|
|
const hasId = filename.includes('[id]');
|
|
const hasChunkHash = filename.includes('[chunkhash]');
|
|
// Anything changing depending on chunk is fine
|
|
if (hasChunkHash || hasName || hasId) {
|
|
this.options.chunkFilename = filename;
|
|
} else {
|
|
// Elsewise prefix '[id].' in front of the basename to make it changing
|
|
this.options.chunkFilename = filename.replace(/(^|\/)([^/]*(?:\?|$))/, '$1[id].$2');
|
|
}
|
|
}
|
|
}
|
|
|
|
apply(compiler) {
|
|
compiler.hooks.thisCompilation.tap(pluginName, compilation => {
|
|
compilation.hooks.normalModuleLoader.tap(pluginName, (lc, m) => {
|
|
const loaderContext = lc;
|
|
const module = m;
|
|
loaderContext[NS] = content => {
|
|
if (!Array.isArray(content) && content != null) {
|
|
throw new Error(`Exported value was not extracted as an array: ${JSON.stringify(content)}`);
|
|
}
|
|
const identifierCountMap = new Map();
|
|
for (const line of content) {
|
|
const count = identifierCountMap.get(line.identifier) || 0;
|
|
module.addDependency(new CssDependency(line, m.context, count));
|
|
identifierCountMap.set(line.identifier, count + 1);
|
|
}
|
|
};
|
|
});
|
|
compilation.dependencyFactories.set(CssDependency, new CssModuleFactory());
|
|
compilation.dependencyTemplates.set(CssDependency, new CssDependencyTemplate());
|
|
compilation.mainTemplate.hooks.renderManifest.tap(pluginName, (result, { chunk }) => {
|
|
const renderedModules = Array.from(chunk.modulesIterable).filter(module => module.type === NS);
|
|
if (renderedModules.length > 0) {
|
|
result.push({
|
|
render: () => this.renderContentAsset(chunk, renderedModules, compilation.runtimeTemplate.requestShortener),
|
|
filenameTemplate: this.options.filename,
|
|
pathOptions: {
|
|
chunk,
|
|
contentHashType: NS
|
|
},
|
|
identifier: `${pluginName}.${chunk.id}`,
|
|
hash: chunk.contentHash[NS]
|
|
});
|
|
}
|
|
});
|
|
compilation.chunkTemplate.hooks.renderManifest.tap(pluginName, (result, { chunk }) => {
|
|
const renderedModules = Array.from(chunk.modulesIterable).filter(module => module.type === NS);
|
|
if (renderedModules.length > 0) {
|
|
result.push({
|
|
render: () => this.renderContentAsset(chunk, renderedModules, compilation.runtimeTemplate.requestShortener),
|
|
filenameTemplate: this.options.chunkFilename,
|
|
pathOptions: {
|
|
chunk,
|
|
contentHashType: NS
|
|
},
|
|
identifier: `${pluginName}.${chunk.id}`,
|
|
hash: chunk.contentHash[NS]
|
|
});
|
|
}
|
|
});
|
|
compilation.mainTemplate.hooks.hashForChunk.tap(pluginName, (hash, chunk) => {
|
|
const { chunkFilename } = this.options;
|
|
if (REGEXP_CHUNKHASH.test(chunkFilename)) {
|
|
hash.update(JSON.stringify(chunk.getChunkMaps(true).hash));
|
|
}
|
|
if (REGEXP_CONTENTHASH.test(chunkFilename)) {
|
|
hash.update(JSON.stringify(chunk.getChunkMaps(true).contentHash[NS] || {}));
|
|
}
|
|
if (REGEXP_NAME.test(chunkFilename)) {
|
|
hash.update(JSON.stringify(chunk.getChunkMaps(true).name));
|
|
}
|
|
});
|
|
compilation.hooks.contentHash.tap(pluginName, chunk => {
|
|
const { outputOptions } = compilation;
|
|
const { hashFunction, hashDigest, hashDigestLength } = outputOptions;
|
|
const hash = createHash(hashFunction);
|
|
for (const m of chunk.modulesIterable) {
|
|
if (m.type === NS) {
|
|
m.updateHash(hash);
|
|
}
|
|
}
|
|
const { contentHash } = chunk;
|
|
contentHash[NS] = hash.digest(hashDigest).substring(0, hashDigestLength);
|
|
});
|
|
const { mainTemplate } = compilation;
|
|
mainTemplate.hooks.localVars.tap(pluginName, (source, chunk) => {
|
|
const chunkMap = this.getCssChunkObject(chunk);
|
|
if (Object.keys(chunkMap).length > 0) {
|
|
return Template.asString([source, '', '// object to store loaded CSS chunks', 'var installedCssChunks = {', Template.indent(chunk.ids.map(id => `${JSON.stringify(id)}: 0`).join(',\n')), '}']);
|
|
}
|
|
return source;
|
|
});
|
|
mainTemplate.hooks.requireEnsure.tap(pluginName, (source, chunk, hash) => {
|
|
const chunkMap = this.getCssChunkObject(chunk);
|
|
if (Object.keys(chunkMap).length > 0) {
|
|
const chunkMaps = chunk.getChunkMaps();
|
|
const linkHrefPath = mainTemplate.getAssetPath(JSON.stringify(this.options.chunkFilename), {
|
|
hash: `" + ${mainTemplate.renderCurrentHashCode(hash)} + "`,
|
|
hashWithLength: length => `" + ${mainTemplate.renderCurrentHashCode(hash, length)} + "`,
|
|
chunk: {
|
|
id: '" + chunkId + "',
|
|
hash: `" + ${JSON.stringify(chunkMaps.hash)}[chunkId] + "`,
|
|
hashWithLength(length) {
|
|
const shortChunkHashMap = Object.create(null);
|
|
for (const chunkId of Object.keys(chunkMaps.hash)) {
|
|
if (typeof chunkMaps.hash[chunkId] === 'string') {
|
|
shortChunkHashMap[chunkId] = chunkMaps.hash[chunkId].substring(0, length);
|
|
}
|
|
}
|
|
return `" + ${JSON.stringify(shortChunkHashMap)}[chunkId] + "`;
|
|
},
|
|
contentHash: {
|
|
[NS]: `" + ${JSON.stringify(chunkMaps.contentHash[NS])}[chunkId] + "`
|
|
},
|
|
contentHashWithLength: {
|
|
[NS]: length => {
|
|
const shortContentHashMap = {};
|
|
const contentHash = chunkMaps.contentHash[NS];
|
|
for (const chunkId of Object.keys(contentHash)) {
|
|
if (typeof contentHash[chunkId] === 'string') {
|
|
shortContentHashMap[chunkId] = contentHash[chunkId].substring(0, length);
|
|
}
|
|
}
|
|
return `" + ${JSON.stringify(shortContentHashMap)}[chunkId] + "`;
|
|
}
|
|
},
|
|
name: `" + (${JSON.stringify(chunkMaps.name)}[chunkId]||chunkId) + "`
|
|
},
|
|
contentHashType: NS
|
|
});
|
|
return Template.asString([source, '', `// ${pluginName} CSS loading`, `var cssChunks = ${JSON.stringify(chunkMap)};`, 'if(installedCssChunks[chunkId]) promises.push(installedCssChunks[chunkId]);', 'else if(installedCssChunks[chunkId] !== 0 && cssChunks[chunkId]) {', Template.indent(['promises.push(installedCssChunks[chunkId] = new Promise(function(resolve, reject) {', Template.indent([`var href = ${linkHrefPath};`, `var fullhref = ${mainTemplate.requireFn}.p + href;`, 'var existingLinkTags = document.getElementsByTagName("link");', 'for(var i = 0; i < existingLinkTags.length; i++) {', Template.indent(['var tag = existingLinkTags[i];', 'var dataHref = tag.getAttribute("data-href") || tag.getAttribute("href");', 'if(tag.rel === "stylesheet" && (dataHref === href || dataHref === fullhref)) return resolve();']), '}', 'var existingStyleTags = document.getElementsByTagName("style");', 'for(var i = 0; i < existingStyleTags.length; i++) {', Template.indent(['var tag = existingStyleTags[i];', 'var dataHref = tag.getAttribute("data-href");', 'if(dataHref === href || dataHref === fullhref) return resolve();']), '}', 'var linkTag = document.createElement("link");', 'linkTag.rel = "stylesheet";', 'linkTag.type = "text/css";', 'linkTag.onload = resolve;', 'linkTag.onerror = function(event) {', Template.indent(['var request = event && event.target && event.target.src || fullhref;', 'var err = new Error("Loading CSS chunk " + chunkId + " failed.\\n(" + request + ")");', 'err.request = request;', 'reject(err);']), '};', 'linkTag.href = fullhref;', 'var head = document.getElementsByTagName("head")[0];', 'head.appendChild(linkTag);']), '}).then(function() {', Template.indent(['installedCssChunks[chunkId] = 0;']), '}));']), '}']);
|
|
}
|
|
return source;
|
|
});
|
|
});
|
|
}
|
|
|
|
getCssChunkObject(mainChunk) {
|
|
const obj = {};
|
|
for (const chunk of mainChunk.getAllAsyncChunks()) {
|
|
for (const module of chunk.modulesIterable) {
|
|
if (module.type === NS) {
|
|
obj[chunk.id] = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return obj;
|
|
}
|
|
|
|
renderContentAsset(chunk, modules, requestShortener) {
|
|
// get first chunk group and take ordr from this one
|
|
// When a chunk is shared between multiple chunk groups
|
|
// with different order this can lead to wrong order
|
|
// but it's not possible to create a correct order in
|
|
// this case. Don't share chunks if you don't like it.
|
|
const [chunkGroup] = chunk.groupsIterable;
|
|
if (typeof chunkGroup.getModuleIndex2 === 'function') {
|
|
modules.sort((a, b) => chunkGroup.getModuleIndex2(a) - chunkGroup.getModuleIndex2(b));
|
|
} else {
|
|
// fallback for older webpack versions
|
|
// (to avoid a breaking change)
|
|
// TODO remove this in next mayor version
|
|
// and increase minimum webpack version to 4.12.0
|
|
modules.sort((a, b) => a.index2 - b.index2);
|
|
}
|
|
const source = new ConcatSource();
|
|
const externalsSource = new ConcatSource();
|
|
for (const m of modules) {
|
|
if (/^@import url/.test(m.content)) {
|
|
// HACK for IE
|
|
// http://stackoverflow.com/a/14676665/1458162
|
|
let { content } = m;
|
|
if (m.media) {
|
|
// insert media into the @import
|
|
// this is rar
|
|
// TODO improve this and parse the CSS to support multiple medias
|
|
content = content.replace(/;|\s*$/, m.media);
|
|
}
|
|
externalsSource.add(content);
|
|
externalsSource.add('\n');
|
|
} else {
|
|
if (m.media) {
|
|
source.add(`@media ${m.media} {\n`);
|
|
}
|
|
if (m.sourceMap) {
|
|
source.add(new SourceMapSource(m.content, m.readableIdentifier(requestShortener), m.sourceMap));
|
|
} else {
|
|
source.add(new OriginalSource(m.content, m.readableIdentifier(requestShortener)));
|
|
}
|
|
source.add('\n');
|
|
if (m.media) {
|
|
source.add('}\n');
|
|
}
|
|
}
|
|
}
|
|
return new ConcatSource(externalsSource, source);
|
|
}
|
|
}
|
|
|
|
MiniCssExtractPlugin.loader = require.resolve('./loader');
|
|
|
|
exports.default = MiniCssExtractPlugin; |