Initial commit

Author: sokra

.gitignore

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+/node_modules
+test/output/*

README.md

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+# source map loader for webpack
+
+Extracts SourceMaps for source files that as added as `sourceMappingURL` comment.
+
+## Usage
+
+[Documentation: Using loaders](http://webpack.github.io/docs/using-loaders.html)
+
+
+### example webpack config
+
+``` javascript
+module.exports = {
+  module: {
+    preLoaders: [
+      {
+        test: /\.js$/,
+        loader: "source-map-loader"
+      }
+    ]
+  }
+};
+```
+
+This extracts all SourceMaps from all files. That's no so performance-wise so you may only want to apply the loader to relevant files.
+
+## License
+
+MIT (http://www.opensource.org/licenses/mit-license.php)

index.js

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+var SourceMap = require("source-map");
+var fs = require("fs");
+var path = require("path");
+var async = require("async");
+var loaderUtils = require("loader-utils");
+
+var baseRegex = "\\s*[@#]\\s*sourceMappingURL\\s*=\\s*(.*)",
+	// Matches /* ... */ comments
+	regex1 = new RegExp("/\\*"+baseRegex+"\\s*\\*/"),
+	// Matches // .... comments
+	regex2 = new RegExp("//"+baseRegex+"($|\n|\r\n?)"),
+	// Matches DataUrls
+	regexDataUrl = /data:[^;\n]+;base64,(.*)/;
+
+module.exports = function(input, inputMap) {
+	this.cacheable && this.cacheable();
+	var resolve = this.resolve;
+	var addDependency = this.addDependency;
+	var match = input.match(regex1) || input.match(regex2);
+	if(match) {
+		var url = match[1];
+		var dataUrlMatch = regexDataUrl.exec(url);
+		var callback = this.async();
+		if(dataUrlMatch) {
+			processMap(JSON.parse((new Buffer(dataUrlMatch[1], "base64")).toString()), this.context, callback);
+		} else {
+			resolve(this.context, loaderUtils.urlToRequest(url), function(err, result) {
+				if(err) return callback(err);
+				addDependency(result);
+				fs.readFile(result, "utf-8", function(err, content) {
+					if(err) return callback(err);
+					processMap(JSON.parse(content), path.dirname(result), callback);
+				});
+			}.bind(this));
+			return;
+		}
+	} else {
+		this.callback(null, input, inputMap);
+	}
+	function processMap(map, context, callback) {
+		if(!map.sourcesContent || map.sourcesContent.length < map.sources.length) {
+			var missingSources = map.sourcesContent ? map.sources.slice(map.sourcesContent.length) : map.sources;
+			async.map(missingSources, function(source, callback) {
+				resolve(context, loaderUtils.urlToRequest(source), function(err, result) {
+					if(err) return callback(null, null);
+					addDependency(result);
+					fs.readFile(result, "utf-8", function(err, content) {
+						if(err) return callback(null, null);
+						callback(null, content);
+					});
+				});
+			}, function(err, sourcesContent) {
+				map.sourcesContent = map.sourcesContent ? map.sourcesContent.concat(sourcesContent) : sourcesContent;
+				processMap(map, context, callback);
+			});
+			return;
+		}
+		async.map(map.sources, function(url, callback) {
+			resolve(context, loaderUtils.urlToRequest(url), callback);
+		}, function(err, sources) {
+			map.sources = sources;
+			callback(null, input.replace(match[0], match[2]), map);
+		});
+	}
+}

package.json

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+{
+  "name": "source-map-loader",
+  "version": "0.1.0",
+  "author": "Tobias Koppers @sokra",
+  "description": "extracts inlined source map and offers it to webpack",
+  "scripts": {
+    "test": "mocha -R spec"
+  },
+  "devDependencies": {
+    "should": "^3.3.1",
+    "mocha": "^1.18.2"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/webpack/source-map-loader.git"
+  },
+  "licenses": [
+    {
+      "type": "MIT",
+      "url": "http://www.opensource.org/licenses/mit-license.php"
+    }
+  ],
+  "dependencies": {
+    "loader-utils": "~0.2.2",
+    "source-map": "~0.1.33",
+    "async": "^0.9.0"
+  }
+}

test/fixtures/data/external-source-map2.map

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+with SourceMap
+//#sourceMappingURL=external-source-map.map
+// comment

test/fixtures/external-source-map.js

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+with SourceMap
+//#sourceMappingURL=data/external-source-map2.map
+// comment

test/fixtures/external-source-map.map

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+with SourceMap

test/fixtures/external-source-map2.js

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+with SourceMap
+//    @    sourceMappingURL    =    data:application/source-map;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiaW5saW5lLXNvdXJjZS1tYXAuanMiLCJzb3VyY2VzIjpbImlubGluZS1zb3VyY2UtbWFwLnR4dCJdLCJzb3VyY2VzQ29udGVudCI6WyJ3aXRoIFNvdXJjZU1hcCJdLCJtYXBwaW5ncyI6IkFBQUEifQ==
+// comment