Added options.amd as a function

Gruntfile.js

@@ -205,6 +205,15 @@ module.exports = function(grunt) {
           'tmp/amd_namespace_as_function.js' : ['test/fixtures/modules/**/*.hbs']
         }
       },
+      amd_compile_function: {
+        options: {
+          amd: function() { return ['handlebars', 'custom dependency'].join("', '"); },
+          namespace: false
+        },
+        files: {
+          'tmp/amd_compile_function.js': ['test/fixtures/amd.html']
+        }
+      },
       commonjs_compile: {
         options: {
           commonjs: true

README.md

@@ -84,7 +84,7 @@ Enable the compiled file to be required on node.js by preppending and appending
 For this option to work you need to define the `namespace` option.
 
 #### amd
-Type: `Boolean` or `String` or `Array`
+Type: `Boolean` or `String` or `Array` or `Function`
 Default: `false`
 
 Wraps the output file with an AMD define function and returns the compiled template namespace unless namespace has been explicitly set to false in which case the template function will be returned directly.
@@ -93,6 +93,8 @@ If `String` then that string will be used in the module definition `define(['you
 
 If `Array` then those strings will be used in the module definition.  `'handlebars'` should always be the first item in the array, eg: `amd: ['handlebars', 'handlebars.helpers']`
 
+If `Function` then it will be called per each module and returned string will be used in the module defintion `"define(['" + options.amd(filename, ast, compiled) + "']"`
+
 ```js
 define(['handlebars'], function(Handlebars) {
     //...//

docs/handlebars-options.md

@@ -55,7 +55,7 @@ Enable the compiled file to be required on node.js by preppending and appending
 For this option to work you need to define the `namespace` option.
 
 ## amd
-Type: `Boolean` or `String` or `Array`
+Type: `Boolean` or `String` or `Array` or `Function`
 Default: `false`
 
 Wraps the output file with an AMD define function and returns the compiled template namespace unless namespace has been explicitly set to false in which case the template function will be returned directly.
@@ -64,6 +64,8 @@ If `String` then that string will be used in the module definition `define(['you
 
 If `Array` then those strings will be used in the module definition.  `'handlebars'` should always be the first item in the array, eg: `amd: ['handlebars', 'handlebars.helpers']`
 
+If `Function` then it will be called per each module and returned string will be used in the module defintion `"define(['" + options.amd(filename, ast, compiled) + "']"`
+
 ```js
 define(['handlebars'], function(Handlebars) {
     //...//

tasks/handlebars.js

@@ -87,6 +87,8 @@ module.exports = function(grunt) {
       var declarations = [];
       var partials = [];
       var templates = [];
+      // template identifying parts
+      var ast, compiled, filename;
 
       // Namespace info for current template
       var nsInfo;
@@ -121,7 +123,6 @@ module.exports = function(grunt) {
         var src = processContent(grunt.file.read(filepath), filepath);
 
         var Handlebars = require('handlebars');
-        var ast, compiled, filename;
         try {
           // parse the handlebars template into it's AST
           ast = processAST(Handlebars.parse(src));
@@ -191,6 +192,8 @@ module.exports = function(grunt) {
             output.unshift('define([\'handlebars\'], function(Handlebars) {');
           } else if (typeof options.amd === 'string') {
             output.unshift('define([\'' + options.amd + '\'], function(Handlebars) {');
+          } else if (typeof options.amd === 'function') {
+            output.unshift("define(['" + options.amd(filename, ast, compiled) + "'], function(Handlebars) {");
           } else if (Array.isArray(options.amd)) {
             // convert options.amd to a string of dependencies for require([...])
             var amdString = '';

test/expected/amd_compile_function.js

@@ -0,0 +1,7 @@
+define(['handlebars', 'custom dependency'], function(Handlebars) {
+
+return Handlebars.template({"compiler":[6,">= 2.0.0-beta.1"],"main":function(depth0,helpers,partials,data) {
+    return "<section class=\"main-app\">\n    <h1>Some title</h1>\n    <p>I've been compiled with amd support</p>\n</section>";
+},"useData":true})
+
+});

test/handlebars_test.js

@@ -187,6 +187,14 @@ exports.handlebars = {
       test.done();
     });
   },
+  amd_compile_function: function(test) {
+    test.expect(1);
+
+    filesAreEqual('amd_compile_function.js', function(actual, expected) {
+      test.equal(actual, expected, 'should wrap everything with an AMD define block and have a custom module name.');
+      test.done();
+    });
+  },
   commonjs_compile: function(test) {
     test.expect(1);