Landing pull request 511. Adding a little Makefile jQuery sizing utility to...

Landing pull request 511. Adding a little Makefile jQuery sizing utility to easily see differences in size between makes.  Fixes #10308.

More Details:
 - https://github.com/jquery/jquery/pull/511

.gitignore

@@ -6,3 +6,4 @@ dist
 *.patch
 /*.html
 .DS_Store
+build/.sizecache.json

Makefile

@@ -44,7 +44,7 @@ DATE=$(shell git log -1 --pretty=format:%ad)
 
 all: update_submodules core
 
-core: jquery min lint
+core: jquery min lint size
 	@@echo "jQuery build complete."
 
 ${DIST_DIR}:
@@ -73,6 +73,15 @@ lint: jquery
 		echo "You must have NodeJS installed in order to test jQuery against JSLint."; \
 	fi
 
+size: jquery min
+	@@if test ! -z ${JS_ENGINE}; then \
+		gzip -c ${JQ_MIN} > ${JQ_MIN}.gz; \
+		wc -c ${JQ} ${JQ_MIN} ${JQ_MIN}.gz | ${JS_ENGINE} ${BUILD_DIR}/sizer.js; \
+		rm ${JQ_MIN}.gz; \
+	else \
+		echo "You must have NodeJS installed in order to size jQuery."; \
+	fi
+
 min: jquery ${JQ_MIN}
 
 ${JQ_MIN}: ${JQ}
@@ -84,7 +93,6 @@ ${JQ_MIN}: ${JQ}
 	else \
 		echo "You must have NodeJS installed in order to minify jQuery."; \
 	fi
-	
 
 clean:
 	@@echo "Removing Distribution directory:" ${DIST_DIR}

build/sizer.js

+var fs = require( "fs" ),
+	stdin = process.openStdin(),
+	rsize = /(\d+).*?(jquery\S+)/g,
+	oldsizes = {},
+	sizes = {};
+
+try {
+	oldsizes = JSON.parse( fs.readFileSync(  __dirname + "/.sizecache.json", "utf8" ) );
+} catch(e) {
+	oldsizes = {};
+};
+
+stdin.on( "data" , function( chunk ) {
+	var match;
+
+	while ( match = rsize.exec( chunk ) ) {
+		sizes[ match[2] ] = parseInt( match[1], 10 );
+	}
+});
+
+function lpad( str, len, chr ) {
+	return ( Array(len+1).join( chr || " ") + str ).substr( -len );
+}
+
+stdin.on( "end", function() {
+	console.log( "jQuery Size - compared to last make" );
+	fs.writeFileSync( __dirname + "/.sizecache.json", JSON.stringify( sizes, true ), "utf8" );
+	for ( var key in sizes ) {
+		var diff = oldsizes[ key ] && ( sizes[ key ] - oldsizes[ key ] );
+		if ( diff > 0 ) {
+			diff = "+" + diff;
+		}
+		console.log( "%s %s %s", lpad( sizes[ key ], 8 ), lpad( diff ? "(" + diff + ")" : "(-)", 8 ), key );
+	}
+	process.exit();
+});
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