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-rwxr-xr-xgit-rebase.sh69
1 files changed, 61 insertions, 8 deletions
diff --git a/git-rebase.sh b/git-rebase.sh
index b0c8ac1c8d..df5fd65d56 100755
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -29,6 +29,7 @@ Example: git-rebase master~1 topic
'
SUBDIRECTORY_OK=Yes
+OPTIONS_SPEC=
. git-sh-setup
set_reflog_action rebase
require_work_tree
@@ -87,7 +88,7 @@ call_merge () {
cmt="$(cat "$dotest/cmt.$1")"
echo "$cmt" > "$dotest/current"
hd=$(git rev-parse --verify HEAD)
- cmt_name=$(git symbolic-ref HEAD)
+ cmt_name=$(git symbolic-ref HEAD 2> /dev/null || echo HEAD)
msgnum=$(cat "$dotest/msgnum")
end=$(cat "$dotest/end")
eval GITHEAD_$cmt='"${cmt_name##refs/heads/}~$(($end - $msgnum))"'
@@ -115,7 +116,24 @@ call_merge () {
esac
}
+move_to_original_branch () {
+ test -z "$head_name" &&
+ head_name="$(cat "$dotest"/head-name)" &&
+ onto="$(cat "$dotest"/onto)" &&
+ orig_head="$(cat "$dotest"/orig-head)"
+ case "$head_name" in
+ refs/*)
+ message="rebase finished: $head_name onto $onto"
+ git update-ref -m "$message" \
+ $head_name $(git rev-parse HEAD) $orig_head &&
+ git symbolic-ref HEAD $head_name ||
+ die "Could not move back to $head_name"
+ ;;
+ esac
+}
+
finish_rb_merge () {
+ move_to_original_branch
rm -r "$dotest"
echo "All done."
}
@@ -153,7 +171,11 @@ do
finish_rb_merge
exit
fi
- git am --resolved --3way --resolvemsg="$RESOLVEMSG"
+ head_name=$(cat .dotest/head-name) &&
+ onto=$(cat .dotest/onto) &&
+ orig_head=$(cat .dotest/orig-head) &&
+ git am --resolved --3way --resolvemsg="$RESOLVEMSG" &&
+ move_to_original_branch
exit
;;
--skip)
@@ -173,16 +195,23 @@ do
finish_rb_merge
exit
fi
- git am -3 --skip --resolvemsg="$RESOLVEMSG"
+ head_name=$(cat .dotest/head-name) &&
+ onto=$(cat .dotest/onto) &&
+ orig_head=$(cat .dotest/orig-head) &&
+ git am -3 --skip --resolvemsg="$RESOLVEMSG" &&
+ move_to_original_branch
exit
;;
--abort)
git rerere clear
if test -d "$dotest"
then
+ move_to_original_branch
rm -r "$dotest"
elif test -d .dotest
then
+ dotest=.dotest
+ move_to_original_branch
rm -r .dotest
else
die "No rebase in progress?"
@@ -215,9 +244,11 @@ do
-v|--verbose)
verbose=t
;;
+ --whitespace=*)
+ git_am_opt="$git_am_opt $1"
+ ;;
-C*)
- git_am_opt=$1
- shift
+ git_am_opt="$git_am_opt $1"
;;
-*)
usage
@@ -316,6 +347,19 @@ then
GIT_PAGER='' git diff --stat --summary "$mb" "$onto"
fi
+# move to a detached HEAD
+orig_head=$(git rev-parse HEAD^0)
+head_name=$(git symbolic-ref HEAD 2> /dev/null)
+case "$head_name" in
+'')
+ head_name="detached HEAD"
+ ;;
+*)
+ git checkout "$orig_head" > /dev/null 2>&1 ||
+ die "could not detach HEAD"
+ ;;
+esac
+
# Rewind the head to "$onto"; this saves our current head in ORIG_HEAD.
echo "First, rewinding head to replay your work on top of it..."
git-reset --hard "$onto"
@@ -325,14 +369,21 @@ git-reset --hard "$onto"
if test "$mb" = "$branch"
then
echo >&2 "Fast-forwarded $branch_name to $onto_name."
+ move_to_original_branch
exit 0
fi
if test -z "$do_merge"
then
git format-patch -k --stdout --full-index --ignore-if-in-upstream "$upstream"..ORIG_HEAD |
- git am $git_am_opt --binary -3 -k --resolvemsg="$RESOLVEMSG"
- exit $?
+ git am $git_am_opt --binary -3 -k --resolvemsg="$RESOLVEMSG" &&
+ move_to_original_branch
+ ret=$?
+ test 0 != $ret -a -d .dotest &&
+ echo $head_name > .dotest/head-name &&
+ echo $onto > .dotest/onto &&
+ echo $orig_head > .dotest/orig-head
+ exit $ret
fi
# start doing a rebase with git-merge
@@ -341,8 +392,10 @@ fi
mkdir -p "$dotest"
echo "$onto" > "$dotest/onto"
echo "$onto_name" > "$dotest/onto_name"
-prev_head=`git rev-parse HEAD^0`
+prev_head=$orig_head
echo "$prev_head" > "$dotest/prev_head"
+echo "$orig_head" > "$dotest/orig-head"
+echo "$head_name" > "$dotest/head-name"
msgnum=0
for cmt in `git rev-list --reverse --no-merges "$upstream"..ORIG_HEAD`