From 6024afaa0dc5624a8552a96383b36058c4d2544c Mon Sep 17 00:00:00 2001
Message-Id: <6024afaa0dc5624a8552a96383b36058c4d2544c.1715153534.git.mdw@distorted.org.uk>
From: Mark Wooding <mdw@chiark.greenend.org.uk>
Date: Thu, 20 Mar 2008 23:12:33 +0000
Subject: [PATCH] Check for unnecessary push/pop in 'float'
Organization: Straylight/Edgeware

From: Catalin Marinas <catalin.marinas@gmail.com>

Signed-off-by: Catalin Marinas <catalin.marinas@gmail.com>
---
 stgit/commands/float.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/stgit/commands/float.py b/stgit/commands/float.py
index 0ba4446..5af7e85 100644
--- a/stgit/commands/float.py
+++ b/stgit/commands/float.py
@@ -82,6 +82,13 @@ def func(parser, options, args):
             topop.append(top)
     topush = patches + topush
 
+    # remove common patches to avoid unnecessary pop/push
+    while topush and topop:
+        if topush[-1] != topop[-1]:
+            break
+        topush.pop()
+        topop.pop()
+
     # check whether the operation is really needed
     if topop != topush:
         if topop:
-- 
[mdw]