LibManifestPlugin.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const path = require("path");
const asyncLib = require("async");
class LibManifestPlugin {
constructor(options) {
this.options = options;
}
apply(compiler) {
compiler.plugin("emit", (compilation, callback) => {
asyncLib.forEach(compilation.chunks, (chunk, callback) => {
if(!chunk.isInitial()) {
callback();
return;
}
const targetPath = compilation.getPath(this.options.path, {
hash: compilation.hash,
chunk
});
const name = this.options.name && compilation.getPath(this.options.name, {
hash: compilation.hash,
chunk
});
const manifest = {
name,
type: this.options.type,
content: chunk.mapModules(module => {
if(module.libIdent) {
const ident = module.libIdent({
context: this.options.context || compiler.options.context
});
if(ident) {
return {
ident,
data: {
id: module.id,
meta: module.meta,
exports: Array.isArray(module.providedExports) ? module.providedExports : undefined
}
};
}
}
}).filter(Boolean).reduce((obj, item) => {
obj[item.ident] = item.data;
return obj;
}, Object.create(null))
};
const content = new Buffer(JSON.stringify(manifest), "utf8"); //eslint-disable-line
compiler.outputFileSystem.mkdirp(path.dirname(targetPath), err => {
if(err) return callback(err);
compiler.outputFileSystem.writeFile(targetPath, content, callback);
});
}, callback);
});
}
}
module.exports = LibManifestPlugin;