mirror of
https://github.com/git/git
synced 2024-07-16 10:38:05 +00:00
ef0c2abf3e
These variables let you specify an editor that will be launched in preference to the EDITOR and VISUAL environment variables. The order of preference is GIT_EDITOR, core.editor, EDITOR, VISUAL. [jc: added a test and config variable documentation] Signed-off-by: Adam Roben <aroben@apple.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
427 lines
10 KiB
Bash
Executable file
427 lines
10 KiB
Bash
Executable file
#!/bin/sh
|
|
#
|
|
# Copyright (c) 2006 Johannes E. Schindelin
|
|
|
|
# SHORT DESCRIPTION
|
|
#
|
|
# This script makes it easy to fix up commits in the middle of a series,
|
|
# and rearrange commits.
|
|
#
|
|
# 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>])'
|
|
|
|
. git-sh-setup
|
|
require_work_tree
|
|
|
|
DOTEST="$GIT_DIR/.dotest-merge"
|
|
TODO="$DOTEST"/todo
|
|
DONE="$DOTEST"/done
|
|
REWRITTEN="$DOTEST"/rewritten
|
|
PRESERVE_MERGES=
|
|
STRATEGY=
|
|
VERBOSE=
|
|
test -d "$REWRITTEN" && PRESERVE_MERGES=t
|
|
test -f "$DOTEST"/strategy && STRATEGY="$(cat "$DOTEST"/strategy)"
|
|
test -f "$DOTEST"/verbose && VERBOSE=t
|
|
|
|
warn () {
|
|
echo "$*" >&2
|
|
}
|
|
|
|
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 ||
|
|
die "Working tree is dirty"
|
|
}
|
|
|
|
ORIG_REFLOG_ACTION="$GIT_REFLOG_ACTION"
|
|
|
|
comment_for_reflog () {
|
|
case "$ORIG_REFLOG_ACTION" in
|
|
''|rebase*)
|
|
GIT_REFLOG_ACTION="rebase -i ($1)"
|
|
export GIT_REFLOG_ACTION
|
|
esac
|
|
}
|
|
|
|
mark_action_done () {
|
|
sed -e 1q < "$TODO" >> "$DONE"
|
|
sed -e 1d < "$TODO" >> "$TODO".new
|
|
mv -f "$TODO".new "$TODO"
|
|
}
|
|
|
|
make_patch () {
|
|
parent_sha1=$(git rev-parse --verify "$1"^ 2> /dev/null)
|
|
git diff "$parent_sha1".."$1" > "$DOTEST"/patch
|
|
}
|
|
|
|
die_with_patch () {
|
|
test -f "$DOTEST"/message ||
|
|
git cat-file commit $sha1 | sed "1,/^$/d" > "$DOTEST"/message
|
|
test -f "$DOTEST"/author-script ||
|
|
get_author_ident_from_commit $sha1 > "$DOTEST"/author-script
|
|
make_patch "$1"
|
|
die "$2"
|
|
}
|
|
|
|
die_abort () {
|
|
rm -rf "$DOTEST"
|
|
die "$1"
|
|
}
|
|
|
|
pick_one () {
|
|
case "$1" in -n) sha1=$2 ;; *) sha1=$1 ;; esac
|
|
git rev-parse --verify $sha1 || die "Invalid commit name: $sha1"
|
|
test -d "$REWRITTEN" &&
|
|
pick_one_preserving_merges "$@" && return
|
|
parent_sha1=$(git rev-parse --verify $sha1^ 2>/dev/null)
|
|
current_sha1=$(git rev-parse --verify HEAD)
|
|
if [ $current_sha1 = $parent_sha1 ]; then
|
|
git reset --hard $sha1
|
|
test "a$1" = a-n && git reset --soft $current_sha1
|
|
sha1=$(git rev-parse --short $sha1)
|
|
warn Fast forward to $sha1
|
|
else
|
|
git cherry-pick $STRATEGY "$@"
|
|
fi
|
|
}
|
|
|
|
pick_one_preserving_merges () {
|
|
case "$1" in -n) sha1=$2 ;; *) sha1=$1 ;; esac
|
|
sha1=$(git rev-parse $sha1)
|
|
|
|
if [ -f "$DOTEST"/current-commit ]
|
|
then
|
|
current_commit=$(cat "$DOTEST"/current-commit) &&
|
|
git rev-parse HEAD > "$REWRITTEN"/$current_commit &&
|
|
rm "$DOTEST"/current-commit ||
|
|
die "Cannot write current commit's replacement sha1"
|
|
fi
|
|
|
|
# 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 $sha1 | cut -d\ -f2-)
|
|
do
|
|
if [ -f "$REWRITTEN"/$p ]
|
|
then
|
|
preserve=f
|
|
new_p=$(cat "$REWRITTEN"/$p)
|
|
test $p != $new_p && fast_forward=f
|
|
case "$new_parents" in
|
|
*$new_p*)
|
|
;; # do nothing; that parent is already there
|
|
*)
|
|
new_parents="$new_parents $new_p"
|
|
esac
|
|
fi
|
|
done
|
|
case $fast_forward in
|
|
t)
|
|
echo "Fast forward to $sha1"
|
|
test $preserve=f && echo $sha1 > "$REWRITTEN"/$sha1
|
|
;;
|
|
f)
|
|
test "a$1" = a-n && die "Refusing to squash a merge: $sha1"
|
|
|
|
first_parent=$(expr "$new_parents" : " \([^ ]*\)")
|
|
# detach HEAD to current parent
|
|
git checkout $first_parent 2> /dev/null ||
|
|
die "Cannot move HEAD to $first_parent"
|
|
|
|
echo $sha1 > "$DOTEST"/current-commit
|
|
case "$new_parents" in
|
|
\ *\ *)
|
|
# redo merge
|
|
author_script=$(get_author_ident_from_commit $sha1)
|
|
eval "$author_script"
|
|
msg="$(git cat-file commit $sha1 | \
|
|
sed -e '1,/^$/d' -e "s/[\"\\]/\\\\&/g")"
|
|
# NEEDSWORK: give rerere a chance
|
|
if ! git merge $STRATEGY -m "$msg" $new_parents
|
|
then
|
|
echo "$msg" > "$GIT_DIR"/MERGE_MSG
|
|
die Error redoing merge $sha1
|
|
fi
|
|
;;
|
|
*)
|
|
git cherry-pick $STRATEGY "$@" ||
|
|
die_with_patch $sha1 "Could not pick $sha1"
|
|
esac
|
|
esac
|
|
}
|
|
|
|
do_next () {
|
|
test -f "$DOTEST"/message && rm "$DOTEST"/message
|
|
test -f "$DOTEST"/author-script && rm "$DOTEST"/author-script
|
|
read command sha1 rest < "$TODO"
|
|
case "$command" in
|
|
\#|'')
|
|
mark_action_done
|
|
;;
|
|
pick)
|
|
comment_for_reflog pick
|
|
|
|
mark_action_done
|
|
pick_one $sha1 ||
|
|
die_with_patch $sha1 "Could not apply $sha1... $rest"
|
|
;;
|
|
edit)
|
|
comment_for_reflog edit
|
|
|
|
mark_action_done
|
|
pick_one $sha1 ||
|
|
die_with_patch $sha1 "Could not apply $sha1... $rest"
|
|
make_patch $sha1
|
|
warn
|
|
warn "You can amend the commit now, with"
|
|
warn
|
|
warn " git commit --amend"
|
|
warn
|
|
exit 0
|
|
;;
|
|
squash)
|
|
comment_for_reflog squash
|
|
|
|
test -z "$(grep -ve '^$' -e '^#' < $DONE)" &&
|
|
die "Cannot 'squash' without a previous commit"
|
|
|
|
mark_action_done
|
|
MSG="$DOTEST"/message
|
|
echo "# This is a combination of two commits." > "$MSG"
|
|
echo "# The first commit's message is:" >> "$MSG"
|
|
echo >> "$MSG"
|
|
git cat-file commit HEAD | sed -e '1,/^$/d' >> "$MSG"
|
|
echo >> "$MSG"
|
|
failed=f
|
|
pick_one -n $sha1 || failed=t
|
|
echo "# And this is the 2nd commit message:" >> "$MSG"
|
|
echo >> "$MSG"
|
|
git cat-file commit $sha1 | sed -e '1,/^$/d' >> "$MSG"
|
|
git reset --soft HEAD^
|
|
author_script=$(get_author_ident_from_commit $sha1)
|
|
echo "$author_script" > "$DOTEST"/author-script
|
|
case $failed in
|
|
f)
|
|
# This is like --amend, but with a different message
|
|
eval "$author_script"
|
|
export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
|
|
git commit -F "$MSG" -e
|
|
;;
|
|
t)
|
|
cp "$MSG" "$GIT_DIR"/MERGE_MSG
|
|
warn
|
|
warn "Could not apply $sha1... $rest"
|
|
die_with_patch $sha1 ""
|
|
esac
|
|
;;
|
|
*)
|
|
warn "Unknown command: $command $sha1 $rest"
|
|
die_with_patch $sha1 "Please fix this in the file $TODO."
|
|
esac
|
|
test -s "$TODO" && return
|
|
|
|
comment_for_reflog finish &&
|
|
HEADNAME=$(cat "$DOTEST"/head-name) &&
|
|
OLDHEAD=$(cat "$DOTEST"/head) &&
|
|
SHORTONTO=$(git rev-parse --short $(cat "$DOTEST"/onto)) &&
|
|
if [ -d "$REWRITTEN" ]
|
|
then
|
|
test -f "$DOTEST"/current-commit &&
|
|
current_commit=$(cat "$DOTEST"/current-commit) &&
|
|
git rev-parse HEAD > "$REWRITTEN"/$current_commit
|
|
NEWHEAD=$(cat "$REWRITTEN"/$OLDHEAD)
|
|
else
|
|
NEWHEAD=$(git rev-parse HEAD)
|
|
fi &&
|
|
message="$GIT_REFLOG_ACTION: $HEADNAME onto $SHORTONTO)" &&
|
|
git update-ref -m "$message" $HEADNAME $NEWHEAD $OLDHEAD &&
|
|
git symbolic-ref HEAD $HEADNAME && {
|
|
test ! -f "$DOTEST"/verbose ||
|
|
git diff --stat $(cat "$DOTEST"/head)..HEAD
|
|
} &&
|
|
rm -rf "$DOTEST" &&
|
|
warn "Successfully rebased and updated $HEADNAME."
|
|
|
|
exit
|
|
}
|
|
|
|
do_rest () {
|
|
while :
|
|
do
|
|
do_next
|
|
done
|
|
}
|
|
|
|
while case $# in 0) break ;; esac
|
|
do
|
|
case "$1" in
|
|
--continue)
|
|
comment_for_reflog continue
|
|
|
|
test -d "$DOTEST" || die "No interactive rebase running"
|
|
|
|
# commit if necessary
|
|
git rev-parse --verify HEAD > /dev/null &&
|
|
git update-index --refresh &&
|
|
git diff-files --quiet &&
|
|
! git diff-index --cached --quiet HEAD &&
|
|
. "$DOTEST"/author-script &&
|
|
export GIT_AUTHOR_NAME GIT_AUTHOR_NAME GIT_AUTHOR_DATE &&
|
|
git commit -F "$DOTEST"/message -e
|
|
|
|
require_clean_work_tree
|
|
do_rest
|
|
;;
|
|
--abort)
|
|
comment_for_reflog abort
|
|
|
|
test -d "$DOTEST" || die "No interactive rebase running"
|
|
|
|
HEADNAME=$(cat "$DOTEST"/head-name)
|
|
HEAD=$(cat "$DOTEST"/head)
|
|
git symbolic-ref HEAD $HEADNAME &&
|
|
git reset --hard $HEAD &&
|
|
rm -rf "$DOTEST"
|
|
exit
|
|
;;
|
|
--skip)
|
|
comment_for_reflog skip
|
|
|
|
test -d "$DOTEST" || die "No interactive rebase running"
|
|
|
|
git reset --hard && do_rest
|
|
;;
|
|
-s|--strategy)
|
|
shift
|
|
case "$#,$1" in
|
|
*,*=*)
|
|
STRATEGY="-s `expr "z$1" : 'z-[^=]*=\(.*\)'`" ;;
|
|
1,*)
|
|
usage ;;
|
|
*)
|
|
STRATEGY="-s $2"
|
|
shift ;;
|
|
esac
|
|
;;
|
|
--merge)
|
|
# we use merge anyway
|
|
;;
|
|
-C*)
|
|
die "Interactive rebase uses merge, so $1 does not make sense"
|
|
;;
|
|
-v|--verbose)
|
|
VERBOSE=t
|
|
;;
|
|
-p|--preserve-merges)
|
|
PRESERVE_MERGES=t
|
|
;;
|
|
-i|--interactive)
|
|
# yeah, we know
|
|
;;
|
|
''|-h)
|
|
usage
|
|
;;
|
|
*)
|
|
test -d "$DOTEST" &&
|
|
die "Interactive rebase already started"
|
|
|
|
git var GIT_COMMITTER_IDENT >/dev/null ||
|
|
die "You need to set your committer info first"
|
|
|
|
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
|
|
|
|
if [ ! -z "$2"]
|
|
then
|
|
git show-ref --verify --quiet "refs/heads/$2" ||
|
|
die "Invalid branchname: $2"
|
|
git checkout "$2" ||
|
|
die "Could not checkout $2"
|
|
fi
|
|
|
|
HEAD=$(git rev-parse --verify HEAD) || die "No HEAD?"
|
|
UPSTREAM=$(git rev-parse --verify "$1") || die "Invalid base"
|
|
|
|
test -z "$ONTO" && ONTO=$UPSTREAM
|
|
|
|
mkdir "$DOTEST" || die "Could not create temporary $DOTEST"
|
|
: > "$DOTEST"/interactive || die "Could not mark as interactive"
|
|
git symbolic-ref HEAD > "$DOTEST"/head-name ||
|
|
die "Could not get HEAD"
|
|
|
|
echo $HEAD > "$DOTEST"/head
|
|
echo $UPSTREAM > "$DOTEST"/upstream
|
|
echo $ONTO > "$DOTEST"/onto
|
|
test -z "$STRATEGY" || echo "$STRATEGY" > "$DOTEST"/strategy
|
|
test t = "$VERBOSE" && : > "$DOTEST"/verbose
|
|
if [ t = "$PRESERVE_MERGES" ]
|
|
then
|
|
# $REWRITTEN contains files for each commit that is
|
|
# reachable by at least one merge base of $HEAD and
|
|
# $UPSTREAM. They are not necessarily rewritten, but
|
|
# their children might be.
|
|
# This ensures that commits on merged, but otherwise
|
|
# unrelated side branches are left alone. (Think "X"
|
|
# in the man page's example.)
|
|
mkdir "$REWRITTEN" &&
|
|
for c in $(git merge-base --all $HEAD $UPSTREAM)
|
|
do
|
|
echo $ONTO > "$REWRITTEN"/$c ||
|
|
die "Could not init rewritten commits"
|
|
done
|
|
MERGES_OPTION=
|
|
else
|
|
MERGES_OPTION=--no-merges
|
|
fi
|
|
|
|
SHORTUPSTREAM=$(git rev-parse --short $UPSTREAM)
|
|
SHORTHEAD=$(git rev-parse --short $HEAD)
|
|
SHORTONTO=$(git rev-parse --short $ONTO)
|
|
cat > "$TODO" << EOF
|
|
# Rebasing $SHORTUPSTREAM..$SHORTHEAD onto $SHORTONTO
|
|
#
|
|
# Commands:
|
|
# pick = use commit
|
|
# edit = use commit, but stop for amending
|
|
# squash = use commit, but meld into previous commit
|
|
#
|
|
# If you remove a line here THAT COMMIT WILL BE LOST.
|
|
#
|
|
EOF
|
|
git rev-list $MERGES_OPTION --pretty=oneline --abbrev-commit \
|
|
--abbrev=7 --reverse $UPSTREAM..$HEAD | \
|
|
sed "s/^/pick /" >> "$TODO"
|
|
|
|
test -z "$(grep -ve '^$' -e '^#' < $TODO)" &&
|
|
die_abort "Nothing to do"
|
|
|
|
cp "$TODO" "$TODO".backup
|
|
git_editor "$TODO" ||
|
|
die "Could not execute editor"
|
|
|
|
test -z "$(grep -ve '^$' -e '^#' < $TODO)" &&
|
|
die_abort "Nothing to do"
|
|
|
|
git checkout $ONTO && do_rest
|
|
esac
|
|
shift
|
|
done
|