webpack/lib/node/NodeEnvironmentPlugin.js

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jade, coffee, css, less, ... and your custom stuff.

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/
var NodeWatchFileSystem = require("./NodeWatchFileSystem");
var NodeOutputFileSystem = require("./NodeOutputFileSystem");
var NodeJsInputFileSystem = require("enhanced-resolve/lib/NodeJsInputFileSystem");
var CachedInputFileSystem = require("enhanced-resolve/lib/CachedInputFileSystem");

function NodeEnvironmentPlugin() {
}
module.exports = NodeEnvironmentPlugin;
NodeEnvironmentPlugin.prototype.apply = function(compiler) {
	compiler.inputFileSystem = new NodeJsInputFileSystem();
	var inputFileSystem = compiler.inputFileSystem = new CachedInputFileSystem(compiler.inputFileSystem, 60000);
	compiler.resolvers.normal.fileSystem = compiler.inputFileSystem;
	compiler.resolvers.context.fileSystem = compiler.inputFileSystem;
	compiler.resolvers.loader.fileSystem = compiler.inputFileSystem;
	compiler.outputFileSystem = new NodeOutputFileSystem();
	compiler.watchFileSystem = new NodeWatchFileSystem(compiler.inputFileSystem);
	compiler.plugin("run", function(compiler, callback) {
		if(compiler.inputFileSystem === inputFileSystem)
			inputFileSystem.purge();
		callback();
	});
};