# Copyright (c) 2005 Junio C Hamano.
#
-USAGE='[--onto <newbase>] <upstream> [<branch>]'
+USAGE='[-v] [--onto <newbase>] <upstream> [<branch>]'
LONG_USAGE='git-rebase replaces <branch> with a new branch of the
same name. When the --onto option is provided the new branch starts
out with a HEAD equal to <newbase>, otherwise it is equal to <upstream>
/ --> /
D---E---F---G master D---E---F---G master
'
+
+SUBDIRECTORY_OK=Yes
. git-sh-setup
+set_reflog_action rebase
+require_work_tree
+cd_to_toplevel
RESOLVEMSG="
When you have resolved this problem run \"git rebase --continue\".
If you would prefer to skip this patch, instead run \"git rebase --skip\".
To restore the original branch and stop rebasing run \"git rebase --abort\".
"
-
-MRESOLVEMSG="
-When you have resolved this problem run \"git rebase --continue\".
-To restore the original branch and stop rebasing run \"git rebase --abort\".
-"
unset newbase
strategy=recursive
do_merge=
dotest=$GIT_DIR/.dotest-merge
prec=4
+verbose=
+git_am_opt=
continue_merge () {
test -n "$prev_head" || die "prev_head must be defined"
then
echo "You still have unmerged paths in your index"
echo "did you forget update-index?"
- die "$MRESOLVEMSG"
+ die "$RESOLVEMSG"
fi
- if test -n "`git-diff-index HEAD`"
+ if ! git-diff-index --quiet HEAD
then
+ if ! git-commit -C "`cat $dotest/current`"
+ then
+ echo "Commit failed, please do not call \"git commit\""
+ echo "directly, but instead do one of the following: "
+ die "$RESOLVEMSG"
+ fi
printf "Committed: %0${prec}d" $msgnum
- git-commit -C "`cat $dotest/current`"
else
printf "Already applied: %0${prec}d" $msgnum
fi
call_merge () {
cmt="$(cat $dotest/cmt.$1)"
echo "$cmt" > "$dotest/current"
- git-merge-$strategy "$cmt^" -- HEAD "$cmt"
+ hd=$(git-rev-parse --verify HEAD)
+ cmt_name=$(git-symbolic-ref HEAD)
+ msgnum=$(cat $dotest/msgnum)
+ end=$(cat $dotest/end)
+ eval GITHEAD_$cmt='"${cmt_name##refs/heads/}~$(($end - $msgnum))"'
+ eval GITHEAD_$hd='"$(cat $dotest/onto_name)"'
+ export GITHEAD_$cmt GITHEAD_$hd
+ git-merge-$strategy "$cmt^" -- "$hd" "$cmt"
rv=$?
case "$rv" in
0)
+ unset GITHEAD_$cmt GITHEAD_$hd
return
;;
1)
test -d "$GIT_DIR/rr-cache" && git-rerere
- die "$MRESOLVEMSG"
+ die "$RESOLVEMSG"
;;
2)
echo "Strategy: $rv $strategy failed, try another" 1>&2
- die "$MRESOLVEMSG"
+ die "$RESOLVEMSG"
;;
*)
die "Unknown exit code ($rv) from command:" \
do
case "$1" in
--continue)
- diff=$(git-diff-files)
- case "$diff" in
- ?*) echo "You must edit all merge conflicts and then"
+ git-diff-files --quiet || {
+ echo "You must edit all merge conflicts and then"
echo "mark them as resolved using git update-index"
exit 1
- ;;
- esac
+ }
if test -d "$dotest"
then
prev_head="`cat $dotest/prev_head`"
--skip)
if test -d "$dotest"
then
+ if test -d "$GIT_DIR/rr-cache"
+ then
+ git-rerere clear
+ fi
prev_head="`cat $dotest/prev_head`"
end="`cat $dotest/end`"
msgnum="`cat $dotest/msgnum`"
exit
;;
--abort)
+ if test -d "$GIT_DIR/rr-cache"
+ then
+ git-rerere clear
+ fi
if test -d "$dotest"
then
rm -r "$dotest"
-s|--s|--st|--str|--stra|--strat|--strate|--strateg|--strategy)
case "$#,$1" in
*,*=*)
- strategy=`expr "$1" : '-[^=]*=\(.*\)'` ;;
+ strategy=`expr "z$1" : 'z-[^=]*=\(.*\)'` ;;
1,*)
usage ;;
*)
esac
do_merge=t
;;
+ -v|--verbose)
+ verbose=t
+ ;;
+ -C*)
+ git_am_opt=$1
+ shift
+ ;;
-*)
usage
;;
git-update-index --refresh || exit
diff=$(git-diff-index --cached --name-status -r HEAD)
case "$diff" in
-?*) echo "$diff"
+?*) echo "cannot rebase: your index is not up-to-date"
+ echo "$diff"
exit 1
;;
esac
upstream=`git rev-parse --verify "${upstream_name}^0"` ||
die "invalid upstream $upstream_name"
+# Make sure the branch to rebase onto is valid.
+onto_name=${newbase-"$upstream_name"}
+onto=$(git-rev-parse --verify "${onto_name}^0") || exit
+
# If a hook exists, give it a chance to interrupt
if test -x "$GIT_DIR/hooks/pre-rebase"
then
git-checkout "$2" || usage
;;
*)
- branch_name=`git symbolic-ref HEAD` || die "No current branch"
- branch_name=`expr "z$branch_name" : 'zrefs/heads/\(.*\)'`
+ if branch_name=`git symbolic-ref -q HEAD`
+ then
+ branch_name=`expr "z$branch_name" : 'zrefs/heads/\(.*\)'`
+ else
+ branch_name=HEAD ;# detached
+ fi
;;
esac
branch=$(git-rev-parse --verify "${branch_name}^0") || exit
-# Make sure the branch to rebase onto is valid.
-onto_name=${newbase-"$upstream_name"}
-onto=$(git-rev-parse --verify "${onto_name}^0") || exit
-
# Now we are rebasing commits $upstream..$branch on top of $onto
# Check if we are already based on $onto, but this should be
# done only when upstream and onto are the same.
-if test "$upstream" = "$onto"
+mb=$(git-merge-base "$onto" "$branch")
+if test "$upstream" = "$onto" && test "$mb" = "$onto"
then
- mb=$(git-merge-base "$onto" "$branch")
- if test "$mb" = "$onto"
- then
- echo >&2 "Current branch $branch_name is up to date."
- exit 0
- fi
+ echo >&2 "Current branch $branch_name is up to date."
+ exit 0
+fi
+
+if test -n "$verbose"
+then
+ echo "Changes from $mb to $onto:"
+ git-diff-tree --stat --summary "$mb" "$onto"
fi
# Rewind the head to "$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"
# If the $onto is a proper descendant of the tip of the branch, then
# we just fast forwarded.
-if test "$mb" = "$onto"
+if test "$mb" = "$branch"
then
- echo >&2 "Fast-forwarded $branch to $newbase."
+ echo >&2 "Fast-forwarded $branch_name to $onto_name."
exit 0
fi
if test -z "$do_merge"
then
- git-format-patch -k --stdout --full-index "$upstream"..ORIG_HEAD |
- git am --binary -3 -k --resolvemsg="$RESOLVEMSG"
+ 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 $?
fi
-if test "@@NO_PYTHON@@" && test "$strategy" = "recursive"
-then
- die 'The recursive merge strategy currently relies on Python,
-which this installation of git was not configured with. Please consider
-a different merge strategy (e.g. octopus, resolve, stupid, ours)
-or install Python and git with Python support.'
-
-fi
-
# start doing a rebase with git-merge
# this is rename-aware if the recursive (default) strategy is used
mkdir -p "$dotest"
echo "$onto" > "$dotest/onto"
+echo "$onto_name" > "$dotest/onto_name"
prev_head=`git-rev-parse HEAD^0`
echo "$prev_head" > "$dotest/prev_head"
msgnum=0
for cmt in `git-rev-list --no-merges "$upstream"..ORIG_HEAD \
- | perl -e 'print reverse <>'`
+ | @@PERL@@ -e 'print reverse <>'`
do
msgnum=$(($msgnum + 1))
echo "$cmt" > "$dotest/cmt.$msgnum"