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- /*
- MIT License http://www.opensource.org/licenses/mit-license.php
- Author Jason Anderson @diurnalist
- */
- "use strict";
-
- const REGEXP_HASH = /\[hash(?::(\d+))?\]/gi,
- REGEXP_CHUNKHASH = /\[chunkhash(?::(\d+))?\]/gi,
- REGEXP_MODULEHASH = /\[modulehash(?::(\d+))?\]/gi,
- REGEXP_CONTENTHASH = /\[contenthash(?::(\d+))?\]/gi,
- REGEXP_NAME = /\[name\]/gi,
- REGEXP_ID = /\[id\]/gi,
- REGEXP_MODULEID = /\[moduleid\]/gi,
- REGEXP_FILE = /\[file\]/gi,
- REGEXP_QUERY = /\[query\]/gi,
- REGEXP_FILEBASE = /\[filebase\]/gi,
- REGEXP_URL = /\[url\]/gi;
-
- // Using global RegExp for .test is dangerous
- // We use a normal RegExp instead of .test
- const REGEXP_HASH_FOR_TEST = new RegExp(REGEXP_HASH.source, "i"),
- REGEXP_CHUNKHASH_FOR_TEST = new RegExp(REGEXP_CHUNKHASH.source, "i"),
- REGEXP_CONTENTHASH_FOR_TEST = new RegExp(REGEXP_CONTENTHASH.source, "i"),
- REGEXP_NAME_FOR_TEST = new RegExp(REGEXP_NAME.source, "i");
-
- const withHashLength = (replacer, handlerFn, assetInfo) => {
- const fn = (match, hashLength, ...args) => {
- if (assetInfo) assetInfo.immutable = true;
- const length = hashLength && parseInt(hashLength, 10);
- if (length && handlerFn) {
- return handlerFn(length);
- }
- const hash = replacer(match, hashLength, ...args);
- return length ? hash.slice(0, length) : hash;
- };
- return fn;
- };
-
- const getReplacer = (value, allowEmpty) => {
- const fn = (match, ...args) => {
- // last argument in replacer is the entire input string
- const input = args[args.length - 1];
- if (value === null || value === undefined) {
- if (!allowEmpty) {
- throw new Error(
- `Path variable ${match} not implemented in this context: ${input}`
- );
- }
- return "";
- } else {
- return `${escapePathVariables(value)}`;
- }
- };
- return fn;
- };
-
- const escapePathVariables = value => {
- return typeof value === "string"
- ? value.replace(/\[(\\*[\w:]+\\*)\]/gi, "[\\$1\\]")
- : value;
- };
-
- const replacePathVariables = (path, data, assetInfo) => {
- const chunk = data.chunk;
- const chunkId = chunk && chunk.id;
- const chunkName = chunk && (chunk.name || chunk.id);
- const chunkHash = chunk && (chunk.renderedHash || chunk.hash);
- const chunkHashWithLength = chunk && chunk.hashWithLength;
- const contentHashType = data.contentHashType;
- const contentHash =
- (chunk && chunk.contentHash && chunk.contentHash[contentHashType]) ||
- data.contentHash;
- const contentHashWithLength =
- (chunk &&
- chunk.contentHashWithLength &&
- chunk.contentHashWithLength[contentHashType]) ||
- data.contentHashWithLength;
- const module = data.module;
- const moduleId = module && module.id;
- const moduleHash = module && (module.renderedHash || module.hash);
- const moduleHashWithLength = module && module.hashWithLength;
-
- if (typeof path === "function") {
- path = path(data);
- }
-
- if (
- data.noChunkHash &&
- (REGEXP_CHUNKHASH_FOR_TEST.test(path) ||
- REGEXP_CONTENTHASH_FOR_TEST.test(path))
- ) {
- throw new Error(
- `Cannot use [chunkhash] or [contenthash] for chunk in '${path}' (use [hash] instead)`
- );
- }
-
- return (
- path
- .replace(
- REGEXP_HASH,
- withHashLength(getReplacer(data.hash), data.hashWithLength, assetInfo)
- )
- .replace(
- REGEXP_CHUNKHASH,
- withHashLength(getReplacer(chunkHash), chunkHashWithLength, assetInfo)
- )
- .replace(
- REGEXP_CONTENTHASH,
- withHashLength(
- getReplacer(contentHash),
- contentHashWithLength,
- assetInfo
- )
- )
- .replace(
- REGEXP_MODULEHASH,
- withHashLength(getReplacer(moduleHash), moduleHashWithLength, assetInfo)
- )
- .replace(REGEXP_ID, getReplacer(chunkId))
- .replace(REGEXP_MODULEID, getReplacer(moduleId))
- .replace(REGEXP_NAME, getReplacer(chunkName))
- .replace(REGEXP_FILE, getReplacer(data.filename))
- .replace(REGEXP_FILEBASE, getReplacer(data.basename))
- // query is optional, it's OK if it's in a path but there's nothing to replace it with
- .replace(REGEXP_QUERY, getReplacer(data.query, true))
- // only available in sourceMappingURLComment
- .replace(REGEXP_URL, getReplacer(data.url))
- .replace(/\[\\(\\*[\w:]+\\*)\\\]/gi, "[$1]")
- );
- };
-
- class TemplatedPathPlugin {
- apply(compiler) {
- compiler.hooks.compilation.tap("TemplatedPathPlugin", compilation => {
- const mainTemplate = compilation.mainTemplate;
-
- mainTemplate.hooks.assetPath.tap(
- "TemplatedPathPlugin",
- replacePathVariables
- );
-
- mainTemplate.hooks.globalHash.tap(
- "TemplatedPathPlugin",
- (chunk, paths) => {
- const outputOptions = mainTemplate.outputOptions;
- const publicPath = outputOptions.publicPath || "";
- const filename = outputOptions.filename || "";
- const chunkFilename =
- outputOptions.chunkFilename || outputOptions.filename;
- if (
- REGEXP_HASH_FOR_TEST.test(publicPath) ||
- REGEXP_CHUNKHASH_FOR_TEST.test(publicPath) ||
- REGEXP_CONTENTHASH_FOR_TEST.test(publicPath) ||
- REGEXP_NAME_FOR_TEST.test(publicPath)
- )
- return true;
- if (REGEXP_HASH_FOR_TEST.test(filename)) return true;
- if (REGEXP_HASH_FOR_TEST.test(chunkFilename)) return true;
- if (REGEXP_HASH_FOR_TEST.test(paths.join("|"))) return true;
- }
- );
-
- mainTemplate.hooks.hashForChunk.tap(
- "TemplatedPathPlugin",
- (hash, chunk) => {
- const outputOptions = mainTemplate.outputOptions;
- const chunkFilename =
- outputOptions.chunkFilename || outputOptions.filename;
- if (REGEXP_CHUNKHASH_FOR_TEST.test(chunkFilename)) {
- hash.update(JSON.stringify(chunk.getChunkMaps(true).hash));
- }
- if (REGEXP_CONTENTHASH_FOR_TEST.test(chunkFilename)) {
- hash.update(
- JSON.stringify(
- chunk.getChunkMaps(true).contentHash.javascript || {}
- )
- );
- }
- if (REGEXP_NAME_FOR_TEST.test(chunkFilename)) {
- hash.update(JSON.stringify(chunk.getChunkMaps(true).name));
- }
- }
- );
- });
- }
- }
-
- module.exports = TemplatedPathPlugin;
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