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-rwxr-xr-xgit-rebase.sh3
1 files changed, 3 insertions, 0 deletions
diff --git a/git-rebase.sh b/git-rebase.sh
index 8a5f44a..c1619ff 100755
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -6,6 +6,8 @@
USAGE='<upstream> [<head>]'
. git-sh-setup
+case $# in 1|2) ;; *) usage ;; esac
+
# Make sure we do not have .dotest
if mkdir .dotest
then
@@ -37,6 +39,7 @@ esac
# If the branch to rebase is given, first switch to it.
case "$#" in
2)
+ head=$(git-rev-parse --verify "$2^") || usage
git-checkout "$2" || usage
esac