From: Chuck Lever <cel@netapp.com>
Date: Thu, 6 Oct 2005 10:19:22 +0000 (+0100)
Subject: Add the ability to rename a git branch
X-Git-Tag: v0.14.3~625
X-Git-Url: https://git.distorted.org.uk/~mdw/stgit/commitdiff_plain/72594233910a7f3ae988020702de20d8703a2ffb?hp=6f48e5f8db212cc241511aa03ed47534580357b2

Add the ability to rename a git branch

To keep StGit-specific functionality separate from git functionality,
create a git.rename_branch function to do appropriate sanity checking and
rename branch heads.

Signed-off-by: Chuck Lever <cel@netapp.com>
---

diff --git a/stgit/git.py b/stgit/git.py
index 7bb41c5..55f06c1 100644
--- a/stgit/git.py
+++ b/stgit/git.py
@@ -315,6 +315,20 @@ def delete_branch(name):
         raise GitException, 'Branch "%s" does not exist' % name
     os.remove(os.path.join(base_dir, branch_head))
 
+def rename_branch(from_name, to_name):
+    """Rename a git branch
+    """
+    from_head = os.path.join(base_dir, 'refs', 'heads', from_name)
+    if not branch_exists(from_head):
+        raise GitException, 'Branch "%s" does not exist' % from_name
+    to_head = os.path.join(base_dir, 'refs', 'heads', to_name)
+    if branch_exists(to_head):
+        raise GitException, 'Branch "%s" already exists' % to_name
+
+    if get_head_file() == from_name:
+        set_head_file(os.path.join('refs', 'heads', to_name))
+    os.rename(from_head, to_head)
+
 def add(names):
     """Add the files or recursively add the directory contents
     """