fix(config.get): process intermediate templates in path

lib/grunt/config.js

@@ -43,7 +43,28 @@ var propStringTmplRe = /^<%=\s*([a-z0-9_$]+(?:\.[a-z0-9_$]+)*)\s*%>$/i;
 
 // Get config data, recursively processing templates.
 config.get = function(prop) {
-  return config.process(config.getRaw(prop));
+  var props = getParts(config.getPropString(prop));
+  var currentData = config.data;
+  // from https://github.com/cowboy/node-getobject/blob/master/lib/getobject.js
+  // Split strings on dot, but only if dot isn't preceded by a backslash. Since
+  // JavaScript doesn't support lookbehinds, use a placeholder for "\.", split
+  // on dot, then replace the placeholder character with a dot.
+  function getParts(str) {
+    return str.replace(/\\\./g, '\uffff').split('.').map(function(s) {
+      return s.replace(/\uffff/g, '.');
+    });
+  }
+
+  props.forEach(function(item) {
+    currentData = currentData[item];
+    // if current value is template -- expand it
+    if (typeof currentData === 'string' &&
+      currentData.match(propStringTmplRe)) {
+      currentData = config.process(currentData);
+    }
+  });
+
+  return config.process(currentData);
 };
 
 // Expand a config value recursively. Used for post-processing raw values

test/grunt/config_test.js

@@ -18,6 +18,7 @@ exports.config = {
       bar: 'bar',
       arr: ['foo', '<%= obj.foo2 %>'],
       arr2: ['<%= arr %>', '<%= obj.Arr %>'],
+      arr3: ['<%= meta %>'],
       buffer: new Buffer('test'),
     });
     done();
@@ -61,7 +62,7 @@ exports.config = {
     test.done();
   },
   'config.get': function(test) {
-    test.expect(10);
+    test.expect(13);
     test.equal(grunt.config.get('foo'), 'bar', 'Should process templates.');
     test.equal(grunt.config.get('foo2'), 'bar', 'Should process templates recursively.');
     test.equal(grunt.config.get('obj.foo2'), 'bar', 'Should process deeply nested templates recursively.');
@@ -73,6 +74,9 @@ exports.config = {
     var buf = grunt.config.get('buffer');
     test.ok(Buffer.isBuffer(buf), 'Should retrieve Buffer instances as Buffer.');
     test.deepEqual(buf, new Buffer('test'), 'Should return buffers as-is.');
+    test.deepEqual(grunt.config.get('arr3.0'), {foo: 'bar', baz: [1, 2, 3]});
+    test.deepEqual(grunt.config.get('arr3.0').foo,   'bar');
+    test.deepEqual(grunt.config.get('arr3.0.foo'),   'bar');
     test.done();
   },
   'config.set': function(test) {