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index 8aa73712ca11f4527f4b8d42bf3a14de2a16c39c..124cb5846b07ee9aa72fac4cbb88098c94f5741a 100755 (executable)
# The original idea comes from Eric W. Biederman, in
# http://article.gmane.org/gmane.comp.version-control.git/22407
-USAGE='(--continue | --abort | --skip | [--preserve-merges] [--verbose]
- [--onto <branch>] <upstream> [<branch>])'
+OPTIONS_KEEPDASHDASH=
+OPTIONS_SPEC="\
+git-rebase [-i] [options] [--] <upstream> [<branch>]
+git-rebase [-i] (--continue | --abort | --skip)
+--
+ Available options are
+v,verbose display a diffstat of what changed upstream
+onto= rebase onto given branch instead of upstream
+p,preserve-merges try to recreate merges instead of ignoring them
+s,strategy= use the given merge strategy
+m,merge always used (no-op)
+i,interactive always used (no-op)
+ Actions:
+continue continue rebasing process
+abort abort rebasing process and restore original branch
+skip skip current patch and continue rebasing process
+"
-OPTIONS_SPEC=
. git-sh-setup
require_work_tree
-DOTEST="$GIT_DIR/.dotest-merge"
+DOTEST="$GIT_DIR/rebase-merge"
TODO="$DOTEST"/git-rebase-todo
DONE="$DOTEST"/done
MSG="$DOTEST"/message
REWRITTEN="$DOTEST"/rewritten
PRESERVE_MERGES=
STRATEGY=
+ONTO=
VERBOSE=
-test -d "$REWRITTEN" && PRESERVE_MERGES=t
-test -f "$DOTEST"/strategy && STRATEGY="$(cat "$DOTEST"/strategy)"
-test -f "$DOTEST"/verbose && VERBOSE=t
GIT_CHERRY_PICK_HELP=" After resolving the conflicts,
mark the corrected paths with 'git add <paths>', and
esac
}
+run_pre_rebase_hook () {
+ if test -x "$GIT_DIR/hooks/pre-rebase"
+ then
+ "$GIT_DIR/hooks/pre-rebase" ${1+"$@"} || {
+ echo >&2 "The pre-rebase hook refused to rebase."
+ exit 1
+ }
+ fi
+}
+
require_clean_work_tree () {
# test if working tree is dirty
git rev-parse --verify HEAD > /dev/null &&
- git update-index --refresh &&
- git diff-files --quiet &&
- git diff-index --cached --quiet HEAD -- ||
+ git update-index --ignore-submodules --refresh &&
+ git diff-files --quiet --ignore-submodules &&
+ git diff-index --cached --quiet HEAD --ignore-submodules -- ||
die "Working tree is dirty"
}
}
pick_one_preserving_merges () {
- case "$1" in -n) sha1=$2 ;; *) sha1=$1 ;; esac
+ fast_forward=t
+ case "$1" in
+ -n)
+ fast_forward=f
+ sha1=$2
+ ;;
+ *)
+ sha1=$1
+ ;;
+ esac
sha1=$(git rev-parse $sha1)
if test -f "$DOTEST"/current-commit
die "Cannot write current commit's replacement sha1"
fi
+ echo $sha1 > "$DOTEST"/current-commit
+
# rewrite parents; if none were rewritten, we can fast-forward.
- fast_forward=t
- preserve=t
new_parents=
for p in $(git rev-list --parents -1 $sha1 | cut -d' ' -f2-)
do
if test -f "$REWRITTEN"/$p
then
- preserve=f
new_p=$(cat "$REWRITTEN"/$p)
test $p != $new_p && fast_forward=f
case "$new_parents" in
new_parents="$new_parents $new_p"
;;
esac
+ else
+ new_parents="$new_parents $p"
fi
done
case $fast_forward in
t)
output warn "Fast forward to $sha1"
- test $preserve = f || echo $sha1 > "$REWRITTEN"/$sha1
+ output git reset --hard $sha1 ||
+ die "Cannot fast forward to $sha1"
;;
f)
test "a$1" = a-n && die "Refusing to squash a merge: $sha1"
output git checkout $first_parent 2> /dev/null ||
die "Cannot move HEAD to $first_parent"
- echo $sha1 > "$DOTEST"/current-commit
case "$new_parents" in
' '*' '*)
# redo merge
"$DOTEST"/amend || exit
read command sha1 rest < "$TODO"
case "$command" in
- '#'*|'')
+ '#'*|''|noop)
mark_action_done
;;
pick|p)
pick_one $sha1 ||
die_with_patch $sha1 "Could not apply $sha1... $rest"
make_patch $sha1
- : > "$DOTEST"/amend
- warn
+ git rev-parse --verify HEAD > "$DOTEST"/amend
+ warn "Stopped at $sha1... $rest"
warn "You can amend the commit now, with"
warn
warn " git commit --amend"
mark_action_done
make_squash_message $sha1 > "$MSG"
+ failed=f
+ author_script=$(get_author_ident_from_commit HEAD)
+ output git reset --soft HEAD^
+ pick_one -n $sha1 || failed=t
case "$(peek_next_command)" in
squash|s)
EDIT_COMMIT=
USE_OUTPUT=output
+ MSG_OPT=-F
+ MSG_FILE="$MSG"
cp "$MSG" "$SQUASH_MSG"
;;
*)
EDIT_COMMIT=-e
USE_OUTPUT=
+ MSG_OPT=
+ MSG_FILE=
rm -f "$SQUASH_MSG" || exit
+ cp "$MSG" "$GIT_DIR"/SQUASH_MSG
+ rm -f "$GIT_DIR"/MERGE_MSG || exit
;;
esac
-
- failed=f
- author_script=$(get_author_ident_from_commit HEAD)
- output git reset --soft HEAD^
- pick_one -n $sha1 || failed=t
echo "$author_script" > "$DOTEST"/author-script
if test $failed = f
then
GIT_AUTHOR_NAME="$GIT_AUTHOR_NAME" \
GIT_AUTHOR_EMAIL="$GIT_AUTHOR_EMAIL" \
GIT_AUTHOR_DATE="$GIT_AUTHOR_DATE" \
- $USE_OUTPUT git commit --no-verify -F "$MSG" $EDIT_COMMIT || failed=t
+ $USE_OUTPUT git commit --no-verify $MSG_OPT "$MSG_FILE" $EDIT_COMMIT || failed=t
fi
if test $failed = t
then
done
}
+# check if no other options are set
+is_standalone () {
+ test $# -eq 2 -a "$2" = '--' &&
+ test -z "$ONTO" &&
+ test -z "$PRESERVE_MERGES" &&
+ test -z "$STRATEGY" &&
+ test -z "$VERBOSE"
+}
+
+get_saved_options () {
+ test -d "$REWRITTEN" && PRESERVE_MERGES=t
+ test -f "$DOTEST"/strategy && STRATEGY="$(cat "$DOTEST"/strategy)"
+ test -f "$DOTEST"/verbose && VERBOSE=t
+}
+
while test $# != 0
do
case "$1" in
--continue)
+ is_standalone "$@" || usage
+ get_saved_options
comment_for_reflog continue
test -d "$DOTEST" || die "No interactive rebase running"
# Sanity check
git rev-parse --verify HEAD >/dev/null ||
die "Cannot read HEAD"
- git update-index --refresh && git diff-files --quiet ||
+ git update-index --ignore-submodules --refresh &&
+ git diff-files --quiet --ignore-submodules ||
die "Working tree is dirty"
# do we have anything to commit?
- if git diff-index --cached --quiet HEAD --
+ if git diff-index --cached --quiet --ignore-submodules HEAD --
then
: Nothing to commit -- skip this
else
. "$DOTEST"/author-script ||
die "Cannot find the author identity"
+ amend=
if test -f "$DOTEST"/amend
then
+ amend=$(git rev-parse --verify HEAD)
+ test "$amend" = $(cat "$DOTEST"/amend) ||
+ die "\
+You have uncommitted changes in your working tree. Please, commit them
+first and then run 'git rebase --continue' again."
git reset --soft HEAD^ ||
die "Cannot rewind the HEAD"
fi
export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE &&
- git commit --no-verify -F "$DOTEST"/message -e ||
- die "Could not commit staged changes."
+ git commit --no-verify -F "$DOTEST"/message -e || {
+ test -n "$amend" && git reset --soft $amend
+ die "Could not commit staged changes."
+ }
fi
require_clean_work_tree
do_rest
;;
--abort)
+ is_standalone "$@" || usage
+ get_saved_options
comment_for_reflog abort
git rerere clear
exit
;;
--skip)
+ is_standalone "$@" || usage
+ get_saved_options
comment_for_reflog skip
git rerere clear
output git reset --hard && do_rest
;;
- -s|--strategy)
+ -s)
case "$#,$1" in
*,*=*)
STRATEGY="-s "$(expr "z$1" : 'z-[^=]*=\(.*\)') ;;
shift ;;
esac
;;
- -m|--merge)
+ -m)
# we use merge anyway
;;
- -C*)
- die "Interactive rebase uses merge, so $1 does not make sense"
- ;;
- -v|--verbose)
+ -v)
VERBOSE=t
;;
- -p|--preserve-merges)
+ -p)
PRESERVE_MERGES=t
;;
- -i|--interactive)
+ -i)
# yeah, we know
;;
- ''|-h)
- usage
+ --onto)
+ shift
+ ONTO=$(git rev-parse --verify "$1") ||
+ die "Does not point to a valid commit: $1"
;;
- *)
+ --)
+ shift
+ run_pre_rebase_hook ${1+"$@"}
+ test $# -eq 1 -o $# -eq 2 || usage
test -d "$DOTEST" &&
die "Interactive rebase already started"
comment_for_reflog start
- ONTO=
- case "$1" in
- --onto)
- ONTO=$(git rev-parse --verify "$2") ||
- die "Does not point to a valid commit: $2"
- shift; shift
- ;;
- esac
-
require_clean_work_tree
+ UPSTREAM=$(git rev-parse --verify "$1") || die "Invalid base"
+ test -z "$ONTO" && ONTO=$UPSTREAM
+
if test ! -z "$2"
then
output git show-ref --verify --quiet "refs/heads/$2" ||
fi
HEAD=$(git rev-parse --verify HEAD) || die "No HEAD?"
- UPSTREAM=$(git rev-parse --verify "$1") || die "Invalid base"
-
mkdir "$DOTEST" || die "Could not create temporary $DOTEST"
- test -z "$ONTO" && ONTO=$UPSTREAM
-
: > "$DOTEST"/interactive || die "Could not mark as interactive"
git symbolic-ref HEAD > "$DOTEST"/head-name 2> /dev/null ||
echo "detached HEAD" > "$DOTEST"/head-name
--abbrev=7 --reverse --left-right --cherry-pick \
$UPSTREAM...$HEAD | \
sed -n "s/^>/pick /p" > "$TODO"
+ test -s "$TODO" || echo noop >> "$TODO"
cat >> "$TODO" << EOF
# Rebase $SHORTUPSTREAM..$SHORTHEAD onto $SHORTONTO
#
# Commands:
-# pick = use commit
-# edit = use commit, but stop for amending
-# squash = use commit, but meld into previous commit
+# p, pick = use commit
+# e, edit = use commit, but stop for amending
+# s, squash = use commit, but meld into previous commit
#
# If you remove a line here THAT COMMIT WILL BE LOST.
# However, if you remove everything, the rebase will be aborted.
has_action "$TODO" ||
die_abort "Nothing to do"
+ git update-ref ORIG_HEAD $HEAD
output git checkout $ONTO && do_rest
;;
esac