Method apply

lib/optimize/RealContentHashPlugin.js:201–553

* Applies the plugin by registering its hooks on the compiler. * @param {Compiler} compiler the compiler instance * @returns {void}

(compiler)

	 * @returns {void}
	 */
	apply(compiler) {
		compiler.hooks.compilation.tap(PLUGIN_NAME, (compilation) => {
			const cacheAnalyse = compilation.getCache(
				class="st">"RealContentHashPlugin|analyse"
			);
			const cacheGenerate = compilation.getCache(
				class="st">"RealContentHashPlugin|generate"
			);
			const hooks = RealContentHashPlugin.getCompilationHooks(compilation);
			compilation.hooks.processAssets.tapPromise(
				{
					name: PLUGIN_NAME,
					stage: Compilation.PROCESS_ASSETS_STAGE_OPTIMIZE_HASH
				},
				async () => {
					const assets = compilation.getAssets();
					/** @type {AssetInfoForRealContentHash[]} */
					const assetsWithInfo = [];
					/** @type {Map<string, [AssetInfoForRealContentHash]>} */
					const hashToAssets = new Map();
					class="cm">// Inline `[contenthash:<digest>]` digest per hash, so the recomputed
					class="cm">// real hash is re-encoded in it instead of `output.hashDigest`.
					/** @type {Map<string, string>} */
					const hashToDigest = new Map();
					for (const { source, info, name } of assets) {
						const cachedSource = toCachedSource(source);
						const content = /** @type {string} */ (cachedSource.source());
						/** @type {Hashes} */
						const hashes = new Set();
						addToList(info.contenthash, hashes);
						if (info.contenthashDigest) {
							for (const hash of Object.keys(info.contenthashDigest)) {
								hashToDigest.set(hash, info.contenthashDigest[hash]);
							}
						}
						/** @type {AssetInfoForRealContentHash} */
						const data = {
							name,
							info,
							source: cachedSource,
							newSource: undefined,
							newSourceWithoutOwn: undefined,
							content,
							ownHashes: undefined,
							contentComputePromise: undefined,
							contentComputeWithoutOwnPromise: undefined,
							referencedHashes: undefined,
							hashes
						};
						assetsWithInfo.push(data);
						for (const hash of hashes) {
							const list = hashToAssets.get(hash);
							if (list === undefined) {
								hashToAssets.set(hash, [data]);
							} else {
								list.push(data);
							}
						}