From c6b4db3983209a71280a60bf9e66bd5610611b32 Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Wed, 4 Jun 2008 11:25:39 +1000
Subject: [PATCH] Don't delete branched every time.

---
 update_trees | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/update_trees b/update_trees
index a1925e6..c17428c 100755
--- a/update_trees
+++ b/update_trees
@@ -63,12 +63,23 @@ for name in $quilters; do
 		continue
 	}
 
-	execute git branch -D "quilt/$name"
-	execute git checkout -b "quilt/$name" "$rbase" || sh -i || {
+	git show-ref --quiet --verify "refs/heads/quilt/$name" ||
+		execute git branch "quilt/$name" "$rbase" || sh -i || {
+			[ -f "$sfile.orig" ] &&
+				mv -f "$sfile.orig" "$sfile"
+			exit 1
+		}
+	execute git checkout "quilt/$name" || sh -i || {
 		[ -f "$sfile.orig" ] &&
 			mv -f "$sfile.orig" "$sfile"
 		exit 1
 	}
+	execute git reset --hard "$rbase" || sh -i || {
+		[ -f "$sfile.orig" ] &&
+			mv -f "$sfile.orig" "$sfile"
+		exit 1
+	}
+
 	author=$(grep -v '^#' ../real_control | awk -F '	' '$3=="'"$name"'" { printf("%s", $1); }' | sed 's/,.*$//')
 	execute git quiltimport --author "$author" --patches "../quilt/$name" || sh -i || {
 		[ -f "$sfile.orig" ] &&
-- 
2.39.5