mirror of https://github.com/webpack/webpack.git
				
				
				
			
		
			
				
	
	
		
			93 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
			
		
		
	
	
			93 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
| /*
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| 	MIT License http://www.opensource.org/licenses/mit-license.php
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| 	Author Jason Anderson @diurnalist
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| */
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| 
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| var REGEXP_HASH = /\[hash(?::(\d+))?\]/gi,
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| 	REGEXP_CHUNKHASH = /\[chunkhash(?::(\d+))?\]/gi,
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| 	REGEXP_NAME = /\[name\]/gi,
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| 	REGEXP_ID = /\[id\]/gi,
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| 	REGEXP_FILE = /\[file\]/gi,
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| 	REGEXP_QUERY = /\[query\]/gi,
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| 	REGEXP_FILEBASE = /\[filebase\]/gi;
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| 
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| // Backwards compatibility; expose regexes on Template object
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| var Template = require("./Template");
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| Template.REGEXP_HASH = REGEXP_HASH;
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| Template.REGEXP_CHUNKHASH = REGEXP_CHUNKHASH;
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| Template.REGEXP_NAME = REGEXP_NAME;
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| Template.REGEXP_ID = REGEXP_ID;
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| Template.REGEXP_FILE = REGEXP_FILE;
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| Template.REGEXP_QUERY = REGEXP_QUERY;
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| Template.REGEXP_FILEBASE = REGEXP_FILEBASE;
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| 
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| function TemplatedPathPlugin() {}
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| 
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| module.exports = TemplatedPathPlugin;
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| 
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| function withHashLength(replacer, handlerFn) {
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| 	return function (_, hashLength) {
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| 		var length = hashLength && parseInt(hashLength, 10);
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| 		if(length && handlerFn) {
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| 			return handlerFn(length);
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| 		}
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| 		var hash = replacer.apply(this, arguments);
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| 		return length ? hash.slice(0, length) : hash;
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| 	};
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| }
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| 
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| function getReplacer(value, allowEmpty) {
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| 	return function (match) {
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| 		// last argument in replacer is the entire input string
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| 		var input = arguments[arguments.length - 1];
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| 		if (value == null) {
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| 			if (!allowEmpty) throw new Error("Path variable " + match + " not implemented in this context: " + input);
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| 			return "";
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| 		} else {
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| 			return "" + value;
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| 		}
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| 	};
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| }
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| 
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| function replacePathVariables(path, data) {
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| 	var chunk = data.chunk;
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| 	var chunkId = chunk && chunk.id;
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| 	var chunkName = chunk && (chunk.name || chunk.id);
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| 	var chunkHash = chunk && (chunk.renderedHash || chunk.hash);
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| 	var chunkHashWithLength = chunk && chunk.hashWithLength;
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| 
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| 	return path
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| 		.replace(REGEXP_HASH, withHashLength(getReplacer(data.hash)))
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| 		.replace(REGEXP_CHUNKHASH, withHashLength(getReplacer(chunkHash), chunkHashWithLength))
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| 		.replace(REGEXP_ID, getReplacer(chunkId))
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| 		.replace(REGEXP_NAME, getReplacer(chunkName))
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| 		.replace(REGEXP_FILE, getReplacer(data.filename))
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| 		.replace(REGEXP_FILEBASE, getReplacer(data.basename))
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| 		// query is optional, it's OK if it's in a path but there's nothing to replace it with
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| 		.replace(REGEXP_QUERY, getReplacer(data.query, true));
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| }
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| 
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| TemplatedPathPlugin.prototype.constructor = TemplatedPathPlugin;
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| TemplatedPathPlugin.prototype.apply = function(compiler) {
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| 	compiler.plugin("compilation", function(compilation) {
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| 		var mainTemplate = compilation.mainTemplate;
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| 
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| 		mainTemplate.plugin("asset-path", replacePathVariables);
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| 
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| 		mainTemplate.plugin("global-hash", function(chunk, paths) {
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| 			var outputOptions = this.outputOptions;
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| 			var publicPath = outputOptions.publicPath || "";
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| 			var filename = outputOptions.filename || "";
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| 			var chunkFilename = outputOptions.chunkFilename || "";
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| 			if(REGEXP_HASH.test(publicPath) || REGEXP_CHUNKHASH.test(publicPath) || REGEXP_NAME.test(publicPath))
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| 				return true;
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| 			if(REGEXP_HASH.test(filename))
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| 				return true;
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| 			if(REGEXP_HASH.test(chunkFilename) || REGEXP_CHUNKHASH.test(chunkFilename) || REGEXP_NAME.test(chunkFilename))
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| 				return true;
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| 			if(REGEXP_HASH.test(paths.join("|")))
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| 				return true;
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| 		});
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| 	});
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| };
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