From 432ecb5a895513956d6f512586268a33b3eb99e4 Mon Sep 17 00:00:00 2001
From: MenTaLguY <mental@rydia.net>
Date: Thu, 3 Nov 2011 17:31:39 -0700
Subject: [PATCH 1/3] add callbacks for async chaining of tasks

---
 lib/coffee-script/cake.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/coffee-script/cake.js b/lib/coffee-script/cake.js
index a1d3693958..661fb02065 100644
--- a/lib/coffee-script/cake.js
+++ b/lib/coffee-script/cake.js
@@ -34,9 +34,9 @@
     option: function(letter, flag, description) {
       return switches.push([letter, flag, description]);
     },
-    invoke: function(name) {
+    invoke: function(name, cb) {
       if (!tasks[name]) missingTask(name);
-      return tasks[name].action(options);
+      return tasks[name].action(options, cb);
     }
   });
 

From 0e4479e53dd296824a11b6429ccf1901b1bc5dad Mon Sep 17 00:00:00 2001
From: MenTaLguY <mental@rydia.net>
Date: Thu, 3 Nov 2011 17:44:46 -0700
Subject: [PATCH 2/3] task + asyncTask for backwards compat

---
 lib/coffee-script/cake.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/coffee-script/cake.js b/lib/coffee-script/cake.js
index 661fb02065..a1d3693958 100644
--- a/lib/coffee-script/cake.js
+++ b/lib/coffee-script/cake.js
@@ -34,9 +34,9 @@
     option: function(letter, flag, description) {
       return switches.push([letter, flag, description]);
     },
-    invoke: function(name, cb) {
+    invoke: function(name) {
       if (!tasks[name]) missingTask(name);
-      return tasks[name].action(options, cb);
+      return tasks[name].action(options);
     }
   });
 

From eba05f1a617466582582445024110818d0eeffde Mon Sep 17 00:00:00 2001
From: MenTaLguY <mental@rydia.net>
Date: Thu, 3 Nov 2011 17:49:47 -0700
Subject: [PATCH 3/3] do things the proper way

---
 lib/coffee-script/cake.js | 12 +++++++++---
 src/cake.coffee           | 16 ++++++++++++----
 2 files changed, 21 insertions(+), 7 deletions(-)

diff --git a/lib/coffee-script/cake.js b/lib/coffee-script/cake.js
index a1d3693958..1af40a4b61 100644
--- a/lib/coffee-script/cake.js
+++ b/lib/coffee-script/cake.js
@@ -20,7 +20,7 @@
   oparse = null;
 
   helpers.extend(global, {
-    task: function(name, description, action) {
+    asyncTask: function(name, description, action) {
       var _ref;
       if (!action) {
         _ref = [description, action], action = _ref[0], description = _ref[1];
@@ -31,12 +31,18 @@
         action: action
       };
     },
+    task: function(name, description, action) {
+      return global.asyncTask(name, description, function(options, cb) {
+        action(options);
+        return cb();
+      });
+    },
     option: function(letter, flag, description) {
       return switches.push([letter, flag, description]);
     },
-    invoke: function(name) {
+    invoke: function(name, cb) {
       if (!tasks[name]) missingTask(name);
-      return tasks[name].action(options);
+      return tasks[name].action(options, cb || (function() {}));
     }
   });
 
diff --git a/src/cake.coffee b/src/cake.coffee
index be5e71a945..47e2997888 100644
--- a/src/cake.coffee
+++ b/src/cake.coffee
@@ -22,11 +22,19 @@ oparse    = null
 # Mixin the top-level Cake functions for Cakefiles to use directly.
 helpers.extend global,
 
+  # Define an asynchronous Cake task with a short name, an optional sentence
+  # description, and the function to run as the action itself.  The function
+  # takes an additional callback argument to call when it completes.
+  asyncTask: (name, description, action) ->
+    [action, description] = [description, action] unless action
+    tasks[name] = {name, description, action}
+
   # Define a Cake task with a short name, an optional sentence description,
   # and the function to run as the action itself.
   task: (name, description, action) ->
-    [action, description] = [description, action] unless action
-    tasks[name] = {name, description, action}
+    global.asyncTask name, description, (options, cb) ->
+      action(options)
+      cb()
 
   # Define an option that the Cakefile accepts. The parsed options hash,
   # containing all of the command-line options passed, will be made available
@@ -35,9 +43,9 @@ helpers.extend global,
     switches.push [letter, flag, description]
 
   # Invoke another task in the current Cakefile.
-  invoke: (name) ->
+  invoke: (name, cb) ->
     missingTask name unless tasks[name]
-    tasks[name].action options
+    tasks[name].action options, cb or (->)
 
 # Run `cake`. Executes all of the tasks you pass, in order. Note that Node's
 # asynchrony may cause tasks to execute in a different order than you'd expect.