pulled in the rake build from jQuery

Rakefile

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+prefix    = File.dirname( __FILE__ )
+
+# Directory variables
+src_dir   = File.join( prefix, 'src' )
+build_dir = File.join( prefix, 'build' )
+test_dir  = File.join( prefix, 'test' )
+
+# A different destination directory can be set by
+# setting DIST_DIR before calling rake
+dist_dir  = ENV['DIST_DIR'] || File.join( prefix, 'dist' )
+
+base_files = %w{transform transform.attributes transform.animate angle matrix matrix.calculations matrix.functions}.map { |js| File.join( src_dir, "jquery.#{js}.js" ) }
+
+# General Variables
+date       = `git log -1`[/^Date:\s+(.+)$/, 1]
+version    = File.read( File.join( prefix, 'version.txt' ) ).strip
+
+# jQuery files/dirs
+jq         = File.join( dist_dir, "jquery.transform-#{version}.js" )
+jq_min     = File.join( dist_dir, "jquery.transform-#{version}.min.js" )
+
+
+# Build tools
+rhino      = "java -jar \"#{build_dir}/js.jar\""
+minfier    = "java -jar \"#{build_dir}/yuicompressor-2.4.2.jar\""
+
+# Turn off output other than needed from `sh` and file commands
+verbose(false) 
+
+# Tasks
+task :default => "all"
+
+desc "Builds jQuery; Tests with JSLint; Minifies jQuery"
+task :all => [:jquery, :lint, :min] do
+  puts "jQuery build complete."
+end
+
+desc "Builds jQuery Transform: jquery.transform.js (Default task)"
+task :jquery => [jq]
+
+desc "Builds a minified version of jQuery Transform: jquery.transform.min.js"
+task :min => jq_min
+
+
+task :init => [] do 
+end
+
+desc "Removes dist folder"
+task :clean do
+  puts "Removing Distribution directory: #{dist_dir}..." 
+  rm_rf dist_dir
+end
+
+desc "Tests built jquery.transform.js against JSLint"
+task :lint => jq do
+  puts "Checking jQuery against JSLint..."
+  sh "#{rhino} \"" + File.join(build_dir, 'jslint-check.js') + "\""
+end
+
+
+# File and Directory Dependencies
+directory dist_dir
+
+file jq => [dist_dir, base_files].flatten do
+  puts "Building jquery.transform.js..."
+
+  File.open(jq, 'w') do |f|
+    f.write cat(base_files).gsub(/(Date:.)/, "\\1#{date}" ).gsub(/@VERSION/, version)
+  end
+end
+
+file jq_min => jq do
+  puts "Building jquery.transform.min.js..."
+  sh "#{minfier} -o \"#{jq_min}\" \"#{jq}\""
+end
+
+def cat( files )
+  files.map do |file|
+    File.read(file)
+  end.join('')
+end

build/jslint-check.js

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+load("build/jslint.js");
+
+var src = readFile("dist/jquery.js");
+
+JSLINT(src, { evil: true, forin: true, maxerr: 100 });
+
+// All of the following are known issues that we think are 'ok'
+// (in contradiction with JSLint) more information here:
+// http://docs.jquery.com/JQuery_Core_Style_Guidelines
+var ok = {
+	"Expected an identifier and instead saw 'undefined' (a reserved word).": true,
+	"Use '===' to compare with 'null'.": true,
+	"Use '!==' to compare with 'null'.": true,
+	"Expected an assignment or function call and instead saw an expression.": true,
+	"Expected a 'break' statement before 'case'.": true
+
+};
+
+var e = JSLINT.errors, found = 0, w;
+
+for ( var i = 0; i < e.length; i++ ) {
+	w = e[i];
+
+	if ( !ok[ w.reason ] ) {
+		found++;
+		print( "\n" + w.evidence + "\n" );
+		print( "    Problem at line " + w.line + " character " + w.character + ": " + w.reason );
+	}
+}
+
+if ( found > 0 ) {
+	print( "\n" + found + " Error(s) found." );
+
+} else {
+	print( "JSLint check passed." );
+}