Release: remove sourcemap comment from all copies of minified file

Fixes gh-1707

Gruntfile.js

@@ -161,7 +161,7 @@ module.exports = function( grunt ) {
 	grunt.registerTask( "test", [ "test_fast" ] );
 
 	// Short list as a high frequency watch task
-	grunt.registerTask( "dev", [ "build:*:*", "lint", "uglify", "dist:*" ] );
+	grunt.registerTask( "dev", [ "build:*:*", "lint", "uglify", "remove_map_comment", "dist:*" ] );
 
 	grunt.registerTask( "default", [ "dev", "test_fast", "compare_size" ] );
 };

build/release/cdn.js

@@ -44,12 +44,6 @@ function makeReleaseCopies( Release ) {
 					"\"file\":\"" + unpathedFile.replace( /\.min\.map/, ".min.js" ) +
 					"\",\"sources\":[\"" + unpathedFile.replace( /\.min\.map/, ".js" ) + "\"]" );
 			fs.writeFileSync( releaseFile, text );
-		} else if ( /\.min\.js$/.test( releaseFile ) ) {
-			// Remove the source map comment; it causes way too many problems.
-			// Keep the map file in case DevTools allow manual association.
-			text = fs.readFileSync( builtFile, "utf8" )
-				.replace( /\/\/# sourceMappingURL=\S+/, "" );
-			fs.writeFileSync( releaseFile, text );
 		} else if ( builtFile !== releaseFile ) {
 			shell.cp( "-f", builtFile, releaseFile );
 		}

build/tasks/sourcemap.js

@@ -0,0 +1,13 @@
+var fs = require( "fs" );
+
+module.exports = function( grunt ) {
+	var minLoc = Object.keys( grunt.config( "uglify.all.files" ) )[ 0 ];
+	grunt.registerTask( "remove_map_comment", function() {
+		// Remove the source map comment; it causes way too many problems.
+		// The map file is still generated for manual associations
+		// https://github.com/jquery/jquery/issues/1707
+		var text = fs.readFileSync( minLoc, "utf8" )
+			.replace( /\/\/# sourceMappingURL=\S+/, "" );
+		fs.writeFileSync( minLoc, text );
+	});
+};

package.json

@@ -35,7 +35,7 @@
     "grunt-cli": "0.1.13",
     "grunt-compare-size": "0.4.0",
     "grunt-contrib-jshint": "0.10.0",
-    "grunt-contrib-uglify": "0.6.0",
+    "grunt-contrib-uglify": "0.7.0",
     "grunt-contrib-watch": "0.6.1",
     "grunt-git-authors": "2.0.1",
     "grunt-jscs-checker": "0.8.1",
@@ -61,7 +61,6 @@
       "Tests",
       "Build",
       "Release",
-
       "Core",
       "Ajax",
       "Attributes",