-#!/bin/sh
+# This shell script fragment is sourced by git-rebase to implement
+# its interactive mode. "git rebase --interactive" makes it easy
+# to fix up commits in the middle of a series and rearrange commits.
#
# 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
rewritten_list="$state_dir"/rewritten-list
rewritten_pending="$state_dir"/rewritten-pending
+strategy_args=
+if test -n "$do_merge"
+then
+ strategy_args=${strategy:+--strategy=$strategy}
+ eval '
+ for strategy_opt in '"$strategy_opts"'
+ do
+ strategy_args="$strategy_args -X$(git rev-parse --sq-quote "${strategy_opt#--}")"
+ done
+ '
+fi
+
GIT_CHERRY_PICK_HELP="$resolvemsg"
export GIT_CHERRY_PICK_HELP
fi
}
+# Put the last action marked done at the beginning of the todo list
+# again. If there has not been an action marked done yet, leave the list of
+# items on the todo list unchanged.
+reschedule_last_action () {
+ tail -n 1 "$done" | cat - "$todo" >"$todo".new
+ sed -e \$d <"$done" >"$done".new
+ mv -f "$todo".new "$todo"
+ mv -f "$done".new "$done"
+}
+
append_todo_help () {
git stripspace --comment-lines >>"$todo" <<\EOF
echo "$1" > "$state_dir"/stopped-sha
make_patch $1
git rev-parse --verify HEAD > "$amend"
+ gpg_sign_opt_quoted=${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")}
warn "You can amend the commit now, with"
warn
- warn " git commit --amend"
+ warn " git commit --amend $gpg_sign_opt_quoted"
warn
warn "Once you are satisfied with your changes, run"
warn
test -d "$rewritten" &&
pick_one_preserving_merges "$@" && return
- output git cherry-pick $empty_args $ff "$@"
+ output eval git cherry-pick \
+ ${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")} \
+ "$strategy_args" $empty_args $ff "$@"
+
+ # If cherry-pick dies it leaves the to-be-picked commit unrecorded. Reschedule
+ # previous task so this commit is not lost.
+ ret=$?
+ case "$ret" in [01]) ;; *) reschedule_last_action ;; esac
+ return $ret
}
pick_one_preserving_merges () {
msg_content="$(commit_message $sha1)"
# No point in merging the first parent, that's HEAD
new_parents=${new_parents# $first_parent}
- if ! do_with_author output \
- git merge --no-ff ${strategy:+-s $strategy} -m \
- "$msg_content" $new_parents
+ merge_args="--no-log --no-ff"
+ if ! do_with_author output eval \
+ 'git merge ${gpg_sign_opt:+"$gpg_sign_opt"} \
+ $merge_args $strategy_args -m "$msg_content" $new_parents'
then
printf "%s\n" "$msg_content" > "$GIT_DIR"/MERGE_MSG
die_with_patch $sha1 "Error redoing merge $sha1"
echo "$sha1 $(git rev-parse HEAD^0)" >> "$rewritten_list"
;;
*)
- output git cherry-pick "$@" ||
+ output eval git cherry-pick \
+ ${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")} \
+ "$strategy_args" "$@" ||
die_with_patch $sha1 "Could not pick $sha1"
;;
esac
--no-post-rewrite -n -q -C $1 &&
pick_one -n $1 &&
git commit --allow-empty --allow-empty-message \
- --amend --no-post-rewrite -n -q -C $1 ||
+ --amend --no-post-rewrite -n -q -C $1 \
+ ${gpg_sign_opt:+"$gpg_sign_opt"} ||
die_with_patch $1 "Could not apply $1... $2"
else
pick_one $1 ||
mark_action_done
do_pick $sha1 "$rest"
- git commit --amend --no-post-rewrite || {
+ git commit --amend --no-post-rewrite ${gpg_sign_opt:+"$gpg_sign_opt"} || {
warn "Could not amend commit after successfully picking $sha1... $rest"
warn "This is most likely due to an empty commit message, or the pre-commit hook"
warn "failed. If the pre-commit hook failed, you may need to resolve the issue before"
squash|s|fixup|f)
# This is an intermediate commit; its message will only be
# used in case of trouble. So use the long version:
- do_with_author output git commit --amend --no-verify -F "$squash_msg" ||
+ do_with_author output git commit --amend --no-verify -F "$squash_msg" \
+ ${gpg_sign_opt:+"$gpg_sign_opt"} ||
die_failed_squash $sha1 "$rest"
;;
*)
# This is the final command of this squash/fixup group
if test -f "$fixup_msg"
then
- do_with_author git commit --amend --no-verify -F "$fixup_msg" ||
+ do_with_author git commit --amend --no-verify -F "$fixup_msg" \
+ ${gpg_sign_opt:+"$gpg_sign_opt"} ||
die_failed_squash $sha1 "$rest"
else
cp "$squash_msg" "$GIT_DIR"/SQUASH_MSG || exit
rm -f "$GIT_DIR"/MERGE_MSG
- do_with_author git commit --amend --no-verify -F "$GIT_DIR"/SQUASH_MSG -e ||
+ do_with_author git commit --amend --no-verify -F "$GIT_DIR"/SQUASH_MSG -e \
+ ${gpg_sign_opt:+"$gpg_sign_opt"} ||
die_failed_squash $sha1 "$rest"
fi
rm -f "$squash_msg" "$fixup_msg"
git notes copy --for-rewrite=rebase < "$rewritten_list" ||
true # we don't care if this copying failed
} &&
- if test -x "$GIT_DIR"/hooks/post-rewrite &&
- test -s "$rewritten_list"; then
- "$GIT_DIR"/hooks/post-rewrite rebase < "$rewritten_list"
+ hook="$(git rev-parse --git-path hooks/post-rewrite)"
+ if test -x "$hook" && test -s "$rewritten_list"; then
+ "$hook" rebase < "$rewritten_list"
true # we don't care if this hook failed
fi &&
- rm -rf "$state_dir" &&
- git gc --auto &&
warn "Successfully rebased and updated $head_name."
- exit
+ return 1 # not failure; just to break the do_rest loop
}
+# can only return 0, when the infinite loop breaks
do_rest () {
while :
do
- do_next
+ do_next || break
done
}
;;
esac
;;
- 3,#*|3,)
+ 3,"$comment_char"*|3,)
# copy comments
;;
*)
die "Could not skip unnecessary pick commands"
}
+transform_todo_ids () {
+ while read -r command rest
+ do
+ case "$command" in
+ "$comment_char"* | exec)
+ # Be careful for oddball commands like 'exec'
+ # that do not have a SHA-1 at the beginning of $rest.
+ ;;
+ *)
+ sha1=$(git rev-parse --verify --quiet "$@" ${rest%% *}) &&
+ rest="$sha1 ${rest#* }"
+ ;;
+ esac
+ printf '%s\n' "$command${rest:+ }$rest"
+ done <"$todo" >"$todo.new" &&
+ mv -f "$todo.new" "$todo"
+}
+
+expand_todo_ids() {
+ transform_todo_ids
+}
+
+collapse_todo_ids() {
+ transform_todo_ids --short
+}
+
# Rearrange the todo list that has both "pick sha1 msg" and
# "pick sha1 fixup!/squash! msg" appears in it so that the latter
# comes immediately after the former, and change "pick" to
case "$message" in
"squash! "*|"fixup! "*)
action="${message%%!*}"
- rest="${message#*! }"
- echo "$sha1 $action $rest"
+ rest=$message
+ prefix=
+ # skip all squash! or fixup! (but save for later)
+ while :
+ do
+ case "$rest" in
+ "squash! "*|"fixup! "*)
+ prefix="$prefix${rest%%!*},"
+ rest="${rest#*! }"
+ ;;
+ *)
+ break
+ ;;
+ esac
+ done
+ printf '%s %s %s %s\n' "$sha1" "$action" "$prefix" "$rest"
# if it's a single word, try to resolve to a full sha1 and
# emit a second copy. This allows us to match on both message
# and on sha1 prefix
if test -n "$fullsha"; then
# prefix the action to uniquely identify this line as
# intended for full sha1 match
- echo "$sha1 +$action $fullsha"
+ echo "$sha1 +$action $prefix $fullsha"
fi
fi
esac
esac
printf '%s\n' "$pick $sha1 $message"
used="$used$sha1 "
- while read -r squash action msg_content
+ while read -r squash action msg_prefix msg_content
do
case " $used" in
*" $squash "*) continue ;;
case "$message" in "$msg_content"*) emit=1;; esac ;;
esac
if test $emit = 1; then
- printf '%s\n' "$action $squash $action! $msg_content"
+ real_prefix=$(echo "$msg_prefix" | sed "s/,/! /g")
+ printf '%s\n' "$action $squash ${real_prefix}$msg_content"
used="$used$squash "
fi
done <"$1.sq"
mv "$1.new" "$1"
}
+# The whole contents of this file is run by dot-sourcing it from
+# inside a shell function. It used to be that "return"s we see
+# below were not inside any function, and expected to return
+# to the function that dot-sourced us.
+#
+# However, FreeBSD /bin/sh misbehaves on such a construct and
+# continues to run the statements that follow such a "return".
+# As a work-around, we introduce an extra layer of a function
+# here, and immediately call it after defining it.
+git_rebase__interactive () {
+
case "$action" in
continue)
# do we have anything to commit?
else
if ! test -f "$author_script"
then
+ gpg_sign_opt_quoted=${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")}
die "You have staged changes in your working tree. If these changes are meant to be
squashed into the previous commit, run:
- git commit --amend
+ git commit --amend $gpg_sign_opt_quoted
If they are meant to go into a new commit, run:
- git commit
+ git commit $gpg_sign_opt_quoted
In both case, once you're done, continue with:
die "\
You have uncommitted changes in your working tree. Please, commit them
first and then run 'git rebase --continue' again."
- do_with_author git commit --amend --no-verify -F "$msg" -e ||
+ do_with_author git commit --amend --no-verify -F "$msg" -e \
+ ${gpg_sign_opt:+"$gpg_sign_opt"} ||
die "Could not commit staged changes."
else
- do_with_author git commit --no-verify -F "$msg" -e ||
+ do_with_author git commit --no-verify -F "$msg" -e \
+ ${gpg_sign_opt:+"$gpg_sign_opt"} ||
die "Could not commit staged changes."
fi
fi
require_clean_work_tree "rebase"
do_rest
+ return 0
;;
skip)
git rerere clear
do_rest
+ return 0
;;
edit-todo)
git stripspace --strip-comments <"$todo" >"$todo".new
mv -f "$todo".new "$todo"
+ collapse_todo_ids
append_todo_help
git stripspace --comment-lines >>"$todo" <<\EOF
git_sequence_editor "$todo" ||
die "Could not execute editor"
+ expand_todo_ids
exit
;;
if test ! -z "$switch_to"
then
+ GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $switch_to"
output git checkout "$switch_to" -- ||
- die "Could not checkout $switch_to"
+ die "Could not checkout $switch_to"
+
+ comment_for_reflog start
fi
orig_head=$(git rev-parse --verify HEAD) || die "No HEAD?"
-mkdir "$state_dir" || die "Could not create temporary $state_dir"
+mkdir -p "$state_dir" || die "Could not create temporary $state_dir"
: > "$state_dir"/interactive || die "Could not mark as interactive"
write_basic_state
revisions=$onto...$orig_head
shortrevisions=$shorthead
fi
-git rev-list $merges_option --pretty=oneline --abbrev-commit \
- --abbrev=7 --reverse --left-right --topo-order \
- $revisions | \
+git rev-list $merges_option --pretty=oneline --reverse --left-right --topo-order \
+ $revisions ${restrict_revision+^$restrict_revision} | \
sed -n "s/^>//p" |
-while read -r shortsha1 rest
+while read -r sha1 rest
do
- if test -z "$keep_empty" && is_empty_commit $shortsha1 && ! is_merge_commit $shortsha1
+ if test -z "$keep_empty" && is_empty_commit $sha1 && ! is_merge_commit $sha1
then
comment_out="$comment_char "
else
if test t != "$preserve_merges"
then
- printf '%s\n' "${comment_out}pick $shortsha1 $rest" >>"$todo"
+ printf '%s\n' "${comment_out}pick $sha1 $rest" >>"$todo"
else
- sha1=$(git rev-parse $shortsha1)
if test -z "$rebase_root"
then
preserve=t
if test f = "$preserve"
then
touch "$rewritten"/$sha1
- printf '%s\n' "${comment_out}pick $shortsha1 $rest" >>"$todo"
+ printf '%s\n' "${comment_out}pick $sha1 $rest" >>"$todo"
fi
fi
done
git rev-list $revisions |
while read rev
do
- if test -f "$rewritten"/$rev -a "$(sane_grep "$rev" "$state_dir"/not-cherry-picks)" = ""
+ if test -f "$rewritten"/$rev && test "$(sane_grep "$rev" "$state_dir"/not-cherry-picks)" = ""
then
# Use -f2 because if rev-list is telling us this commit is
# not worthwhile, we don't want to track its multiple heads,
# just the history of its first-parent for others that will
# be rebasing on top of it
git rev-list --parents -1 $rev | cut -d' ' -s -f2 > "$dropped"/$rev
- short=$(git rev-list -1 --abbrev-commit --abbrev=7 $rev)
- sane_grep -v "^[a-z][a-z]* $short" <"$todo" > "${todo}2" ; mv "${todo}2" "$todo"
+ sha1=$(git rev-list -1 $rev)
+ sane_grep -v "^[a-z][a-z]* $sha1" <"$todo" > "${todo}2" ; mv "${todo}2" "$todo"
rm "$rewritten"/$rev
fi
done
test -n "$autosquash" && rearrange_squash "$todo"
test -n "$cmd" && add_exec_commands "$todo"
+todocount=$(git stripspace --strip-comments <"$todo" | wc -l)
+todocount=${todocount##* }
+
cat >>"$todo" <<EOF
-$comment_char Rebase $shortrevisions onto $shortonto
+$comment_char Rebase $shortrevisions onto $shortonto ($todocount command(s))
EOF
append_todo_help
git stripspace --comment-lines >>"$todo" <<\EOF
has_action "$todo" ||
- die_abort "Nothing to do"
+ return 2
cp "$todo" "$todo".backup
+collapse_todo_ids
git_sequence_editor "$todo" ||
die_abort "Could not execute editor"
has_action "$todo" ||
- die_abort "Nothing to do"
+ return 2
+
+expand_todo_ids
test -d "$rewritten" || test -n "$force_rebase" || skip_unnecessary_picks
+GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $onto_name"
output git checkout $onto || die_abort "could not detach HEAD"
git update-ref ORIG_HEAD $orig_head
do_rest
+
+}
+# ... and then we call the whole thing.
+git_rebase__interactive