# Copyright (c) 2005 Junio C Hamano.
#
-USAGE='[-v] [--onto <newbase>] <upstream> [<branch>]'
+USAGE='[--interactive | -i] [-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>
'
SUBDIRECTORY_OK=Yes
+OPTIONS_SPEC=
. git-sh-setup
set_reflog_action rebase
require_work_tree
test -n "$prev_head" || die "prev_head must be defined"
test -d "$dotest" || die "$dotest directory does not exist"
- unmerged=$(git-ls-files -u)
+ unmerged=$(git ls-files -u)
if test -n "$unmerged"
then
echo "You still have unmerged paths in your index"
- echo "did you forget update-index?"
+ echo "did you forget to use git add?"
die "$RESOLVEMSG"
fi
- if test -n "`git-diff-index HEAD`"
+ cmt=`cat "$dotest/current"`
+ if ! git diff-index --quiet HEAD --
then
- if ! git-commit -C "`cat $dotest/current`"
+ if ! git-commit -C "$cmt"
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" $msgnum
+ printf "Committed: %0${prec}d " $msgnum
else
- printf "Already applied: %0${prec}d" $msgnum
+ printf "Already applied: %0${prec}d " $msgnum
fi
- echo ' '`git-rev-list --pretty=oneline -1 HEAD | \
- sed 's/^[a-f0-9]\+ //'`
+ git rev-list --pretty=oneline -1 "$cmt" | sed -e 's/^[^ ]* //'
- prev_head=`git-rev-parse HEAD^0`
+ prev_head=`git rev-parse HEAD^0`
# save the resulting commit so we can read-tree on it later
echo "$prev_head" > "$dotest/prev_head"
}
call_merge () {
- cmt="$(cat $dotest/cmt.$1)"
+ cmt="$(cat "$dotest/cmt.$1")"
echo "$cmt" > "$dotest/current"
- hd=$(git-rev-parse --verify HEAD)
- cmt_name=$(git-symbolic-ref HEAD)
- msgnum=$(cat $dotest/msgnum)
- end=$(cat $dotest/end)
+ hd=$(git rev-parse --verify 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 - $msgnum))"'
- eval GITHEAD_$hd='"$(cat $dotest/onto_name)"'
+ eval GITHEAD_$hd='$(cat "$dotest/onto_name")'
export GITHEAD_$cmt GITHEAD_$hd
git-merge-$strategy "$cmt^" -- "$hd" "$cmt"
rv=$?
return
;;
1)
- test -d "$GIT_DIR/rr-cache" && git-rerere
+ git rerere
die "$RESOLVEMSG"
;;
2)
esac
}
+move_to_original_branch () {
+ test -z "$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."
}
-while case "$#" in 0) break ;; esac
+is_interactive () {
+ test -f "$dotest"/interactive ||
+ while :; do case $#,"$1" in 0,|*,-i|*,--interactive) break ;; esac
+ shift
+ done && test -n "$1"
+}
+
+is_interactive "$@" && exec git-rebase--interactive "$@"
+
+while test $# != 0
do
case "$1" in
--continue)
- diff=$(git-diff-files)
- case "$diff" in
- ?*) echo "You must edit all merge conflicts and then"
- echo "mark them as resolved using git update-index"
+ git diff-files --quiet || {
+ echo "You must edit all merge conflicts and then"
+ echo "mark them as resolved using git add"
exit 1
- ;;
- esac
+ }
if test -d "$dotest"
then
- prev_head="`cat $dotest/prev_head`"
- end="`cat $dotest/end`"
- msgnum="`cat $dotest/msgnum`"
- onto="`cat $dotest/onto`"
+ prev_head=$(cat "$dotest/prev_head")
+ end=$(cat "$dotest/end")
+ msgnum=$(cat "$dotest/msgnum")
+ onto=$(cat "$dotest/onto")
continue_merge
while test "$msgnum" -le "$end"
do
finish_rb_merge
exit
fi
- git am --resolved --3way --resolvemsg="$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)
+ git reset --hard HEAD || exit $?
if test -d "$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 $dotest/msgnum`"
+ git rerere clear
+ prev_head=$(cat "$dotest/prev_head")
+ end=$(cat "$dotest/end")
+ msgnum=$(cat "$dotest/msgnum")
msgnum=$(($msgnum + 1))
- onto="`cat $dotest/onto`"
+ onto=$(cat "$dotest/onto")
while test "$msgnum" -le "$end"
do
call_merge "$msgnum"
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="$RESOLVEMSG" &&
+ move_to_original_branch
exit
;;
--abort)
- if test -d "$GIT_DIR/rr-cache"
- then
- git-rerere clear
- fi
+ 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?"
-v|--verbose)
verbose=t
;;
+ --whitespace=*)
+ git_am_opt="$git_am_opt $1"
+ ;;
-C*)
- git_am_opt=$1
- shift
+ git_am_opt="$git_am_opt $1"
;;
-*)
usage
fi
# The tree must be really really clean.
-git-update-index --refresh || exit
-diff=$(git-diff-index --cached --name-status -r HEAD)
+git update-index --refresh || exit
+diff=$(git diff-index --cached --name-status -r HEAD --)
case "$diff" in
?*) echo "cannot rebase: your index is not up-to-date"
echo "$diff"
upstream=`git rev-parse --verify "${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
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
+branch=$(git rev-parse --verify "${branch_name}^0") || exit
# Now we are rebasing commits $upstream..$branch on top of $onto
-# Check if we are already based on $onto, but this should be
-# done only when upstream and onto are the same.
-mb=$(git-merge-base "$onto" "$branch")
-if test "$upstream" = "$onto" && test "$mb" = "$onto"
+# Check if we are already based on $onto with linear history,
+# but this should be done only when upstream and onto are the same.
+mb=$(git merge-base "$onto" "$branch")
+if test "$upstream" = "$onto" && test "$mb" = "$onto" &&
+ # linear history?
+ ! git rev-list --parents "$onto".."$branch" | grep " .* " > /dev/null
then
echo >&2 "Current branch $branch_name is up to date."
exit 0
if test -n "$verbose"
then
echo "Changes from $mb to $onto:"
- git-diff-tree --stat --summary "$mb" "$onto"
+ # We want color (if set), but no pager
+ GIT_PAGER='' git diff --stat --summary "$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 "$onto"
if test "$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 $?
+ git format-patch -k --stdout --full-index --ignore-if-in-upstream "$upstream"..ORIG_HEAD |
+ 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 $ret
fi
# start doing a rebase with git-merge
mkdir -p "$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" > "$dotest/head-name"
msgnum=0
-for cmt in `git-rev-list --no-merges "$upstream"..ORIG_HEAD \
- | @@PERL@@ -e 'print reverse <>'`
+for cmt in `git rev-list --reverse --no-merges "$upstream"..ORIG_HEAD`
do
msgnum=$(($msgnum + 1))
echo "$cmt" > "$dotest/cmt.$msgnum"