Added target specific event emissions. Closes GH-116.

README.md

@@ -192,8 +192,8 @@ grunt.initConfig({
     },
   },
 });
-grunt.event.on('watch', function(action, filepath) {
-  grunt.log.writeln(filepath + ' has ' + action);
+grunt.event.on('watch', function(action, filepath, target) {
+  grunt.log.writeln(target + ': ' + filepath + ' has ' + action);
 });
 ```
 

docs/watch-examples.md

@@ -41,8 +41,8 @@ grunt.initConfig({
     },
   },
 });
-grunt.event.on('watch', function(action, filepath) {
-  grunt.log.writeln(filepath + ' has ' + action);
+grunt.event.on('watch', function(action, filepath, target) {
+  grunt.log.writeln(target + ': ' + filepath + ' has ' + action);
 });
 ```
 

tasks/watch.js

@@ -127,7 +127,7 @@ module.exports = function(grunt) {
 
           // Emit watch events if anyone is listening
           if (grunt.event.listeners('watch').length > 0) {
-            grunt.event.emit('watch', status, filepath);
+            grunt.event.emit('watch', status, filepath, target.name);
           }
 
           // Group changed files only for display

test/fixtures/events/Gruntfile.js

@@ -29,20 +29,27 @@ module.exports = function(grunt) {
           event: ['added', 'deleted'],
         },
         files: ['lib/*.js'],
-      }
+      },
+      targetOne: { files: ['lib/one/*.js'] },
+      targetTwo: { files: ['lib/two/*.js'] },
     },
   });
 
   // Load this watch task
   grunt.loadTasks('../../../tasks');
 
-  // trigger on watch events
   var timeout;
-  grunt.event.on('watch', function(action, filepath) {
+
+  // trigger on watch events
+  grunt.event.on('watch', function(action, filepath, target) {
     grunt.log.writeln(filepath + ' was indeed ' + action);
+    if (target !== undefined) {
+      grunt.log.writeln(target + ' specifc event was fired')
+    }
     clearTimeout(timeout);
     timeout = setTimeout(function() {
       grunt.util.exit(0);
     }, 2000);
   });
+
 };

test/fixtures/events/lib/one/test.js

@@ -0,0 +1 @@
+var test = false;

test/fixtures/events/lib/two/test.js

@@ -0,0 +1 @@
+var test = false;

test/tasks/events_test.js

@@ -110,4 +110,24 @@ exports.events = {
       test.done();
     });
   },
+  targetSpecific: function(test) {
+    test.expect(2);
+    var cwd = path.resolve(fixtures, 'events');
+    var assertWatch = helper.assertTask('watch', {cwd: cwd});
+    assertWatch([function() {
+      var write = 'var test = false;';
+      setTimeout(function() {
+        grunt.file.write(path.join(cwd, 'lib/one', 'test.js'), write);
+      }, 300);
+      setTimeout(function() {
+        grunt.file.write(path.join(cwd, 'lib/two', 'test.js'), write);
+      }, 300);
+    }], function(result) {
+      result = helper.unixify(result);
+      helper.verboseLog(result);
+      test.ok(result.indexOf('lib/one/test.js was indeed changed\ntargetOne specifc event was fired') !== -1, 'event should have been emitted with targetOne specified');
+      test.ok(result.indexOf('lib/two/test.js was indeed changed\ntargetTwo specifc event was fired') !== -1, 'event should have been emitted with targetTwo specified');
+      test.done();
+    });
+  }
 };