Move dist dir generation into Grunt

Gruntfile.js

@@ -0,0 +1,67 @@
+module.exports = function(grunt) {
+  grunt.initConfig({
+    pkg: grunt.file.readJSON('package.json'),
+
+    concat: {
+      options: {
+        banner: '/*!\n\n <%= pkg.name %> v<%= pkg.version %>\n\n<%= grunt.file.read("LICENSE") %>\n@license\n*/\n',
+        process: function(src, name) {
+          var match = /\/\/ BEGIN\(BROWSER\)\n((?:.|\n)*)\n\/\/ END\(BROWSER\)/.exec(src);
+          return '\n// ' + name + '\n' + (match ? match[1] : src);
+        },
+        separator: ';'
+      },
+      dist: {
+        src: [
+          'lib/handlebars/browser-prefix.js',
+          'lib/handlebars/base.js',
+          'lib/handlebars/compiler/parser.js',
+          'lib/handlebars/compiler/base.js',
+          'lib/handlebars/compiler/ast.js',
+          'lib/handlebars/utils.js',
+          'lib/handlebars/compiler/compiler.js',
+          'lib/handlebars/compiler/javascript-compiler.js',
+          'lib/handlebars/runtime.js',
+          'lib/handlebars/browser-suffix.js'
+        ],
+        dest: 'dist/handlebars.js'
+      },
+      runtime: {
+        src: [
+          'lib/handlebars/browser-prefix.js',
+          'lib/handlebars/base.js',
+          'lib/handlebars/utils.js',
+          'lib/handlebars/runtime.js',
+          'lib/handlebars/browser-suffix.js'
+        ],
+        dest: 'dist/handlebars.runtime.js'
+      }
+    },
+    uglify: {
+      options: {
+        mangle: true,
+        compress: true,
+        preserveComments: 'some'
+      },
+      dist: {
+        src: 'dist/<%= pkg.name %>.js',
+        dest: 'dist/<%= pkg.name %>.min.js'
+      },
+      runtime: {
+        src: 'dist/<%= pkg.name %>.runtime.js',
+        dest: 'dist/<%= pkg.name %>.runtime.min.js'
+      }
+    }
+  });
+
+  grunt.loadNpmTasks('grunt-contrib-concat');
+  grunt.loadNpmTasks('grunt-contrib-uglify');
+
+  grunt.registerTask('dist-dir', function() {
+    grunt.file.delete('dist');
+    grunt.file.mkdir('dist');
+  });
+
+
+  grunt.registerTask('default', ['dist-dir', 'concat', 'uglify']);
+};

README.markdown

@@ -393,6 +393,7 @@ Helping Out
 To build Handlebars.js you'll need a few things installed.
 
 * Node.js
+* [Grunt](http://gruntjs.com/getting-started)
 * Ruby
 * Rake
 

Rakefile

@@ -34,53 +34,8 @@ end
 
 task :default => [:compile, :spec]
 
-def remove_exports(string)
-  match = string.match(%r{^// BEGIN\(BROWSER\)\n(.*)\n^// END\(BROWSER\)}m)
-  match ? match[1] : string
-end
-
-minimal_deps = %w(browser-prefix base compiler/parser compiler/base compiler/ast utils compiler/compiler compiler/javascript-compiler runtime browser-suffix).map do |file|
-  "lib/handlebars/#{file}.js"
-end
-
-runtime_deps = %w(browser-prefix base utils runtime browser-suffix).map do |file|
-  "lib/handlebars/#{file}.js"
-end
-
-directory "dist"
-
-minimal_deps.unshift "dist"
-
-def build_for_task(task)
-  FileUtils.rm_rf("dist/*") if File.directory?("dist")
-  FileUtils.mkdir_p("dist")
-
-  contents = ["/*\n\n" + File.read('LICENSE') + "\n@license\n*/\n"]
-  task.prerequisites.each do |filename|
-    next if filename == "dist"
-
-    contents << "// #{filename}\n" + remove_exports(File.read(filename)) + ";"
-  end
-
-  File.open(task.name, "w") do |file|
-    file.puts contents.join("\n")
-  end
-end
-
-file "dist/handlebars.js" => minimal_deps do |task|
-  build_for_task(task)
-end
-
-file "dist/handlebars.runtime.js" => runtime_deps do |task|
-  build_for_task(task)
-end
-
 task :build => [:compile] do |task|
-  Rake::Task["dist/handlebars.js"].execute
-  Rake::Task["dist/handlebars.runtime.js"].execute
-
-  system "./node_modules/.bin/uglifyjs -m -c --comments -o dist/handlebars.min.js dist/handlebars.js"
-  system "./node_modules/.bin/uglifyjs -m -c --comments -o dist/handlebars.runtime.min.js dist/handlebars.runtime.js"
+  system "grunt"
 end
 
 # Updates the various version numbers.

dist/handlebars.js

@@ -1,4 +1,6 @@
-/*
+/*!
+
+ handlebars v1.0.12
 
 Copyright (C) 2011 by Yehuda Katz
 
@@ -2279,4 +2281,3 @@ Handlebars.template = Handlebars.VM.template;
     this.Handlebars = Handlebars;
   }
 }).call(this);
-;

dist/handlebars.runtime.js

@@ -1,4 +1,6 @@
-/*
+/*!
+
+ handlebars v1.0.12
 
 Copyright (C) 2011 by Yehuda Katz
 
@@ -371,4 +373,3 @@ Handlebars.template = Handlebars.VM.template;
     this.Handlebars = Handlebars;
   }
 }).call(this);
-;

package.json

@@ -23,6 +23,9 @@
   "devDependencies": {
     "benchmark": "~1.0",
     "dust": "~0.3",
+    "grunt": "~0.4.1",
+    "grunt-contrib-concat": "~0.3.0",
+    "grunt-contrib-uglify": "~0.2.2",
     "jison": "~0.3",
     "mocha": "*",
     "mustache": "~0.7.2",