solidify template branch features

lib/api/add.coffee

@@ -11,7 +11,7 @@ class Add extends Base
   execute: (opts) ->
     configure_options.call(@, opts)
       .then(nodefn.lift(exec, "git clone #{@url} #{@path(@name)}"))
-      .then(=> if @branch then nodefn.call(exec, "git checkout #{@branch}"))
+      .then(=> if @branch then nodefn.call(exec, "cd #{@path(@name)}; git checkout #{@branch}"))
       .yield("template '#{@name}' added")
 
   # @api private
@@ -28,7 +28,7 @@ class Add extends Base
       @url = @name
       @name = @url.split('/')[@url.split('/').length-1]
 
-    @branch = ''
+    @branch = null
     branch_matcher = /#(.*)$/
     if @url.match(branch_matcher)
       @branch = "#{@url.match(branch_matcher)[1]}"

test/test.coffee

@@ -56,6 +56,19 @@ describe 'js api', ->
       ).then(-> sprout.remove('foobar'))
       .done((-> done()), done)
 
+  it '[init] creates a project template from a branch', (done) ->
+    basic_path = path.join(__dirname, 'fixtures/basic')
+    test_path = path.join(__dirname, 'testproj')
+
+    sprout.add(name: 'foobar', url: "#{test_template_url}#alt")
+      .then(-> sprout.init(template: 'foobar', path: test_path, options: { foo: 'bar' }))
+      .tap(->
+        contents = fs.readFileSync(path.join(test_path, 'index.html'), 'utf8')
+        contents.should.match /alternate/
+        rm('-rf', test_path)
+      ).then(-> sprout.remove('foobar'))
+      .done((-> done()), done)
+
 describe 'cli', ->
 
   it '[add] errors when no args provided', ->