[meld] Support push in Git (bgo#698509)

[Kai Willadsen <kaiw src gnome org>]

commit 33330a13ba15b1f9bdacdea6367ab73c4de3629f
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Tue Apr 30 06:04:04 2013 +1000

    Support push in Git (bgo#698509)

 meld/vc/git.py |   19 ++++++++++++++-----
 1 files changed, 14 insertions(+), 5 deletions(-)
---
diff --git a/meld/vc/git.py b/meld/vc/git.py
index c3579a7..666d33d 100644
--- a/meld/vc/git.py
+++ b/meld/vc/git.py
@@ -78,17 +78,22 @@ class Vc(_vc.CachedVc):
         return location
 
     def commit_command(self, message):
-        return [self.CMD,"commit","-m",message]
+        return [self.CMD, "commit", "-m", message]
+
     def diff_command(self):
         return [self.CMD, "diff", "--relative", "HEAD"]
+
     def update_command(self):
-        return [self.CMD,"pull"]
+        return [self.CMD, "pull"]
+
     def add_command(self):
-        return [self.CMD,"add"]
+        return [self.CMD, "add"]
+
     def remove_command(self, force=0):
-        return [self.CMD,"rm"]
+        return [self.CMD, "rm"]
+
     def revert_command(self):
-        return [self.CMD,"checkout"]
+        return [self.CMD, "checkout"]
 
     # Prototyping VC interface version 2
 
@@ -96,6 +101,10 @@ class Vc(_vc.CachedVc):
         command = [self.CMD, 'pull']
         runner(command, [], refresh=True, working_dir=self.root)
 
+    def push(self, runner):
+        command = [self.CMD, 'push']
+        runner(command, [], refresh=True, working_dir=self.root)
+
     def revert(self, runner, files):
         exists = [f for f in files if os.path.exists(f)]
         missing = [f for f in files if not os.path.exists(f)]