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rOACCT/node_modules/webpack/lib/LibManifestPlugin.js
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LibManifestPlugin.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const asyncLib = require("neo-async");
const EntryDependency = require("./dependencies/EntryDependency");
const { compareModulesById } = require("./util/comparators");
const { dirname, mkdirp } = require("./util/fs");
/** @typedef {import("./Compiler")} Compiler */
/**
* @typedef {Object} ManifestModuleData
* @property {string | number} id
* @property {Object} buildMeta
* @property {boolean | string[]} exports
*/
/**
* @template T
* @param {Iterable<T>} iterable iterable
* @param {function(T): boolean} filter predicate
* @returns {boolean} true, if some items match the filter predicate
*/
const someInIterable = (iterable, filter) => {
for (const item of iterable) {
if (filter(item)) return true;
}
return false;
};
class LibManifestPlugin {
constructor(options) {
this.options = options;
}
/**
* Apply the plugin
* @param {Compiler} compiler the compiler instance
* @returns {void}
*/
apply(compiler) {
compiler.hooks.emit.tapAsync(
"LibManifestPlugin",
(compilation, callback) => {
const moduleGraph = compilation.moduleGraph;
asyncLib.forEach(
Array.from(compilation.chunks),
(chunk, callback) => {
if (!chunk.canBeInitial()) {
callback();
return;
}
const chunkGraph = compilation.chunkGraph;
const targetPath = compilation.getPath(this.options.path, {
chunk
});
const name =
this.options.name &&
compilation.getPath(this.options.name, {
chunk
});
const content = Object.create(null);
for (const module of chunkGraph.getOrderedChunkModulesIterable(
chunk,
compareModulesById(chunkGraph)
)) {
if (
this.options.entryOnly &&
!someInIterable(
moduleGraph.getIncomingConnections(module),
c => c.dependency instanceof EntryDependency
)
) {
continue;
}
const ident = module.libIdent({
context: this.options.context || compiler.options.context,
associatedObjectForCache: compiler.root
});
if (ident) {
const exportsInfo = moduleGraph.getExportsInfo(module);
const providedExports = exportsInfo.getProvidedExports();
/** @type {ManifestModuleData} */
const data = {
id: chunkGraph.getModuleId(module),
buildMeta: module.buildMeta,
exports: Array.isArray(providedExports)
? providedExports
: undefined
};
content[ident] = data;
}
}
const manifest = {
name,
type: this.options.type,
content
};
// Apply formatting to content if format flag is true;
const manifestContent = this.options.format
? JSON.stringify(manifest, null, 2)
: JSON.stringify(manifest);
const buffer = Buffer.from(manifestContent, "utf8");
mkdirp(
compiler.intermediateFileSystem,
dirname(compiler.intermediateFileSystem, targetPath),
err => {
if (err) return callback(err);
compiler.intermediateFileSystem.writeFile(
targetPath,
buffer,
callback
);
}
);
},
callback
);
}
);
}
}
module.exports = LibManifestPlugin;
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