From 0531586cb23eec0a23931f302eb8ecf0b52ff1d2 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <LukeShu@sbcglobal.net>
Date: Tue, 29 Jan 2013 14:22:40 -0500
Subject: Have git-rewrite-branch not create obranch until the end.

---
 git-rewrite-branch | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/git-rewrite-branch b/git-rewrite-branch
index a2b3c81..c9838cf 100755
--- a/git-rewrite-branch
+++ b/git-rewrite-branch
@@ -83,6 +83,10 @@ main() {
 
 	# Main #################################################################
 
+	wbranch="$obranch.tmp"
+
+	local revlist
+	local rebase
 	if git checkout "$obranch" -- 2>/dev/null; then
 		# obranch exists, update it
 		echo 'Updating existing rewritten branch...'
@@ -94,10 +98,6 @@ main() {
 			return 0
 		fi
 
-		# Just to be safe
-		git branch -D "$obranch.tmp" 2>/dev/null || true
-
-		wbranch="$obranch.tmp"
 		local common="$(c2c "$obranch" "$ibranch" "$obranch")"
 		if c2c "$ibranch" "$ibranch" "${common}^" &>/dev/null; then
 			revlist="$(c2c "$obranch" "$ibranch" "$obranch")^..${wbranch}"
@@ -105,18 +105,20 @@ main() {
 			# There is only one commit from $ibranch in $obranch
 			revlist="$wbranch"
 		fi
+		rebase=true
 	else
 		# obranch does not exist, create it
 		echo 'Creating new rewritten branch...'
-		wbranch=$obranch
 		revlist=$wbranch
+		rebase=false
 	fi
 
 	git checkout "$ibranch"
+	git branch -D "$wbranch" 2>/dev/null || true
 	git checkout -b "$wbranch"
 	git filter-branch -f "${filters[@]}" "$revlist"
 
-	if [[ "$obranch" != "$wbranch" ]]; then
+	if $rebase; then
 		# rebase the changes in wbranch onto obranch
 		echo 'Rebasing rewrites onto existing branch...'
 		local wcommit="$(c2c "$wbranch" "$ibranch" "$wbranch")"
@@ -143,6 +145,8 @@ main() {
 		"${cmd[@]}"
 		git checkout "$obranch"
 		git branch -d "$wbranch"
+	else
+		git branch -m "$wbranch" "$obranch"
 	fi
 }
 
-- 
cgit v1.1-4-g5e80