chore(3p/git): Unvendor git and track patches instead r/2903

This was vendored a long time ago under the expectation that keeping
it in sync with cgit would be easier this way, but it has proven not
to be a big issue.

On the other hand, a vendored copy of git is an annoying maintenance
burden. It is much easier to rebase the single (dottime) patch that we
have.

This removes the vendored copy of git and instead passes the git
source code to cgit via `pkgs.srcOnly`, which includes the applied
patch so that cgit can continue rendering dottime.

Change-Id: If31f62dea7ce688fd1b9050204e9378019775f2b

1 files changed, 0 insertions, 1057 deletions

diff --git a/third_party/git/git-rebase--preserve-merges.sh b/third_party/git/git-rebase--preserve-merges.sh
deleted file mode 100644
index b9c71d2a71..0000000000
--- a/third_party/git/git-rebase--preserve-merges.sh
+++ /dev/null
@@ -1,1057 +0,0 @@
-# This shell script fragment is sourced by git-rebase to implement its
-# preserve-merges mode.
-#
-# Copyright (c) 2006 Johannes E. Schindelin
-#
-# The file containing rebase commands, comments, and empty lines.
-# This file is created by "git rebase -i" then edited by the user.  As
-# the lines are processed, they are removed from the front of this
-# file and written to the tail of $done.
-todo="$state_dir"/git-rebase-todo
-
-# The rebase command lines that have already been processed.  A line
-# is moved here when it is first handled, before any associated user
-# actions.
-done="$state_dir"/done
-
-# The commit message that is planned to be used for any changes that
-# need to be committed following a user interaction.
-msg="$state_dir"/message
-
-# The file into which is accumulated the suggested commit message for
-# squash/fixup commands.  When the first of a series of squash/fixups
-# is seen, the file is created and the commit message from the
-# previous commit and from the first squash/fixup commit are written
-# to it.  The commit message for each subsequent squash/fixup commit
-# is appended to the file as it is processed.
-#
-# The first line of the file is of the form
-#     # This is a combination of $count commits.
-# where $count is the number of commits whose messages have been
-# written to the file so far (including the initial "pick" commit).
-# Each time that a commit message is processed, this line is read and
-# updated.  It is deleted just before the combined commit is made.
-squash_msg="$state_dir"/message-squash
-
-# If the current series of squash/fixups has not yet included a squash
-# command, then this file exists and holds the commit message of the
-# original "pick" commit.  (If the series ends without a "squash"
-# command, then this can be used as the commit message of the combined
-# commit without opening the editor.)
-fixup_msg="$state_dir"/message-fixup
-
-# $rewritten is the name of a directory containing files for each
-# commit that is reachable by at least one merge base of $head and
-# $upstream. They are not necessarily rewritten, but their children
-# might be.  This ensures that commits on merged, but otherwise
-# unrelated side branches are left alone. (Think "X" in the man page's
-# example.)
-rewritten="$state_dir"/rewritten
-
-dropped="$state_dir"/dropped
-
-end="$state_dir"/end
-msgnum="$state_dir"/msgnum
-
-# A script to set the GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and
-# GIT_AUTHOR_DATE that will be used for the commit that is currently
-# being rebased.
-author_script="$state_dir"/author-script
-
-# When an "edit" rebase command is being processed, the SHA1 of the
-# commit to be edited is recorded in this file.  When "git rebase
-# --continue" is executed, if there are any staged changes then they
-# will be amended to the HEAD commit, but only provided the HEAD
-# commit is still the commit to be edited.  When any other rebase
-# command is processed, this file is deleted.
-amend="$state_dir"/amend
-
-# For the post-rewrite hook, we make a list of rewritten commits and
-# their new sha1s.  The rewritten-pending list keeps the sha1s of
-# commits that have been processed, but not committed yet,
-# e.g. because they are waiting for a 'squash' command.
-rewritten_list="$state_dir"/rewritten-list
-rewritten_pending="$state_dir"/rewritten-pending
-
-# Work around Git for Windows' Bash whose "read" does not strip CRLF
-# and leaves CR at the end instead.
-cr=$(printf "\015")
-
-resolvemsg="
-$(gettext 'Resolve all conflicts manually, mark them as resolved with
-"git add/rm <conflicted_files>", then run "git rebase --continue".
-You can instead skip this commit: run "git rebase --skip".
-To abort and get back to the state before "git rebase", run "git rebase --abort".')
-"
-
-write_basic_state () {
-	echo "$head_name" > "$state_dir"/head-name &&
-	echo "$onto" > "$state_dir"/onto &&
-	echo "$orig_head" > "$state_dir"/orig-head &&
-	test t = "$GIT_QUIET" && : > "$state_dir"/quiet
-	test t = "$verbose" && : > "$state_dir"/verbose
-	test -n "$strategy" && echo "$strategy" > "$state_dir"/strategy
-	test -n "$strategy_opts" && echo "$strategy_opts" > \
-		"$state_dir"/strategy_opts
-	test -n "$allow_rerere_autoupdate" && echo "$allow_rerere_autoupdate" > \
-		"$state_dir"/allow_rerere_autoupdate
-	test -n "$gpg_sign_opt" && echo "$gpg_sign_opt" > "$state_dir"/gpg_sign_opt
-	test -n "$signoff" && echo "$signoff" >"$state_dir"/signoff
-	test -n "$reschedule_failed_exec" && : > "$state_dir"/reschedule-failed-exec
-}
-
-apply_autostash () {
-	if test -f "$state_dir/autostash"
-	then
-		stash_sha1=$(cat "$state_dir/autostash")
-		if git stash apply $stash_sha1 >/dev/null 2>&1
-		then
-			echo "$(gettext 'Applied autostash.')" >&2
-		else
-			git stash store -m "autostash" -q $stash_sha1 ||
-			die "$(eval_gettext "Cannot store \$stash_sha1")"
-			gettext 'Applying autostash resulted in conflicts.
-Your changes are safe in the stash.
-You can run "git stash pop" or "git stash drop" at any time.
-' >&2
-		fi
-	fi
-}
-
-output () {
-	case "$verbose" in
-	'')
-		output=$("$@" 2>&1 )
-		status=$?
-		test $status != 0 && printf "%s\n" "$output"
-		return $status
-		;;
-	*)
-		"$@"
-		;;
-	esac
-}
-
-strategy_args=${strategy:+--strategy=$strategy}
-test -n "$strategy_opts" &&
-eval '
-	for strategy_opt in '"$strategy_opts"'
-	do
-		strategy_args="$strategy_args -X$(git rev-parse --sq-quote "${strategy_opt#--}")"
-	done
-'
-
-GIT_CHERRY_PICK_HELP="$resolvemsg"
-export GIT_CHERRY_PICK_HELP
-
-comment_char=$(git config --get core.commentchar 2>/dev/null)
-case "$comment_char" in
-'' | auto)
-	comment_char="#"
-	;;
-?)
-	;;
-*)
-	comment_char=$(echo "$comment_char" | cut -c1)
-	;;
-esac
-
-warn () {
-	printf '%s\n' "$*" >&2
-}
-
-# Output the commit message for the specified commit.
-commit_message () {
-	git cat-file commit "$1" | sed "1,/^$/d"
-}
-
-orig_reflog_action="$GIT_REFLOG_ACTION"
-
-comment_for_reflog () {
-	case "$orig_reflog_action" in
-	''|rebase*)
-		GIT_REFLOG_ACTION="rebase -i ($1)"
-		export GIT_REFLOG_ACTION
-		;;
-	esac
-}
-
-last_count=
-mark_action_done () {
-	sed -e 1q < "$todo" >> "$done"
-	sed -e 1d < "$todo" >> "$todo".new
-	mv -f "$todo".new "$todo"
-	new_count=$(( $(git stripspace --strip-comments <"$done" | wc -l) ))
-	echo $new_count >"$msgnum"
-	total=$(($new_count + $(git stripspace --strip-comments <"$todo" | wc -l)))
-	echo $total >"$end"
-	if test "$last_count" != "$new_count"
-	then
-		last_count=$new_count
-		eval_gettext "Rebasing (\$new_count/\$total)"; printf "\r"
-		test -z "$verbose" || echo
-	fi
-}
-
-append_todo_help () {
-	gettext "
-Commands:
-p, pick <commit> = use commit
-r, reword <commit> = use commit, but edit the commit message
-e, edit <commit> = use commit, but stop for amending
-s, squash <commit> = use commit, but meld into previous commit
-f, fixup <commit> = like \"squash\", but discard this commit's log message
-x, exec <commit> = run command (the rest of the line) using shell
-d, drop <commit> = remove commit
-l, label <label> = label current HEAD with a name
-t, reset <label> = reset HEAD to a label
-m, merge [-C <commit> | -c <commit>] <label> [# <oneline>]
-.       create a merge commit using the original merge commit's
-.       message (or the oneline, if no original merge commit was
-.       specified). Use -c <commit> to reword the commit message.
-
-These lines can be re-ordered; they are executed from top to bottom.
-" | git stripspace --comment-lines >>"$todo"
-
-	if test $(get_missing_commit_check_level) = error
-	then
-		gettext "
-Do not remove any line. Use 'drop' explicitly to remove a commit.
-" | git stripspace --comment-lines >>"$todo"
-	else
-		gettext "
-If you remove a line here THAT COMMIT WILL BE LOST.
-" | git stripspace --comment-lines >>"$todo"
-	fi
-}
-
-make_patch () {
-	sha1_and_parents="$(git rev-list --parents -1 "$1")"
-	case "$sha1_and_parents" in
-	?*' '?*' '?*)
-		git diff --cc $sha1_and_parents
-		;;
-	?*' '?*)
-		git diff-tree -p "$1^!"
-		;;
-	*)
-		echo "Root commit"
-		;;
-	esac > "$state_dir"/patch
-	test -f "$msg" ||
-		commit_message "$1" > "$msg"
-	test -f "$author_script" ||
-		get_author_ident_from_commit "$1" > "$author_script"
-}
-
-die_with_patch () {
-	echo "$1" > "$state_dir"/stopped-sha
-	git update-ref REBASE_HEAD "$1"
-	make_patch "$1"
-	die "$2"
-}
-
-exit_with_patch () {
-	echo "$1" > "$state_dir"/stopped-sha
-	git update-ref REBASE_HEAD "$1"
-	make_patch $1
-	git rev-parse --verify HEAD > "$amend"
-	gpg_sign_opt_quoted=${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")}
-	warn "$(eval_gettext "\
-You can amend the commit now, with
-
-	git commit --amend \$gpg_sign_opt_quoted
-
-Once you are satisfied with your changes, run
-
-	git rebase --continue")"
-	warn
-	exit $2
-}
-
-die_abort () {
-	apply_autostash
-	rm -rf "$state_dir"
-	die "$1"
-}
-
-has_action () {
-	test -n "$(git stripspace --strip-comments <"$1")"
-}
-
-is_empty_commit() {
-	tree=$(git rev-parse -q --verify "$1"^{tree} 2>/dev/null) || {
-		sha1=$1
-		die "$(eval_gettext "\$sha1: not a commit that can be picked")"
-	}
-	ptree=$(git rev-parse -q --verify "$1"^^{tree} 2>/dev/null) ||
-		ptree=4b825dc642cb6eb9a060e54bf8d69288fbee4904
-	test "$tree" = "$ptree"
-}
-
-is_merge_commit()
-{
-	git rev-parse --verify --quiet "$1"^2 >/dev/null 2>&1
-}
-
-# Run command with GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and
-# GIT_AUTHOR_DATE exported from the current environment.
-do_with_author () {
-	(
-		export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
-		"$@"
-	)
-}
-
-git_sequence_editor () {
-	if test -z "$GIT_SEQUENCE_EDITOR"
-	then
-		GIT_SEQUENCE_EDITOR="$(git config sequence.editor)"
-		if [ -z "$GIT_SEQUENCE_EDITOR" ]
-		then
-			GIT_SEQUENCE_EDITOR="$(git var GIT_EDITOR)" || return $?
-		fi
-	fi
-
-	eval "$GIT_SEQUENCE_EDITOR" '"$@"'
-}
-
-pick_one () {
-	ff=--ff
-
-	case "$1" in -n) sha1=$2; ff= ;; *) sha1=$1 ;; esac
-	case "$force_rebase" in '') ;; ?*) ff= ;; esac
-	output git rev-parse --verify $sha1 || die "$(eval_gettext "Invalid commit name: \$sha1")"
-
-	if is_empty_commit "$sha1"
-	then
-		empty_args="--allow-empty"
-	fi
-
-	pick_one_preserving_merges "$@"
-}
-
-pick_one_preserving_merges () {
-	fast_forward=t
-	case "$1" in
-	-n)
-		fast_forward=f
-		sha1=$2
-		;;
-	*)
-		sha1=$1
-		;;
-	esac
-	sha1=$(git rev-parse $sha1)
-
-	if test -f "$state_dir"/current-commit && test "$fast_forward" = t
-	then
-		while read current_commit
-		do
-			git rev-parse HEAD > "$rewritten"/$current_commit
-		done <"$state_dir"/current-commit
-		rm "$state_dir"/current-commit ||
-			die "$(gettext "Cannot write current commit's replacement sha1")"
-	fi
-
-	echo $sha1 >> "$state_dir"/current-commit
-
-	# rewrite parents; if none were rewritten, we can fast-forward.
-	new_parents=
-	pend=" $(git rev-list --parents -1 $sha1 | cut -d' ' -s -f2-)"
-	if test "$pend" = " "
-	then
-		pend=" root"
-	fi
-	while [ "$pend" != "" ]
-	do
-		p=$(expr "$pend" : ' \([^ ]*\)')
-		pend="${pend# $p}"
-
-		if test -f "$rewritten"/$p
-		then
-			new_p=$(cat "$rewritten"/$p)
-
-			# If the todo reordered commits, and our parent is marked for
-			# rewriting, but hasn't been gotten to yet, assume the user meant to
-			# drop it on top of the current HEAD
-			if test -z "$new_p"
-			then
-				new_p=$(git rev-parse HEAD)
-			fi
-
-			test $p != $new_p && fast_forward=f
-			case "$new_parents" in
-			*$new_p*)
-				;; # do nothing; that parent is already there
-			*)
-				new_parents="$new_parents $new_p"
-				;;
-			esac
-		else
-			if test -f "$dropped"/$p
-			then
-				fast_forward=f
-				replacement="$(cat "$dropped"/$p)"
-				test -z "$replacement" && replacement=root
-				pend=" $replacement$pend"
-			else
-				new_parents="$new_parents $p"
-			fi
-		fi
-	done
-	case $fast_forward in
-	t)
-		output warn "$(eval_gettext "Fast-forward to \$sha1")"
-		output git reset --hard $sha1 ||
-			die "$(eval_gettext "Cannot fast-forward to \$sha1")"
-		;;
-	f)
-		first_parent=$(expr "$new_parents" : ' \([^ ]*\)')
-
-		if [ "$1" != "-n" ]
-		then
-			# detach HEAD to current parent
-			output git checkout $first_parent 2> /dev/null ||
-				die "$(eval_gettext "Cannot move HEAD to \$first_parent")"
-		fi
-
-		case "$new_parents" in
-		' '*' '*)
-			test "a$1" = a-n && die "$(eval_gettext "Refusing to squash a merge: \$sha1")"
-
-			# redo merge
-			author_script_content=$(get_author_ident_from_commit $sha1)
-			eval "$author_script_content"
-			msg_content="$(commit_message $sha1)"
-			# No point in merging the first parent, that's HEAD
-			new_parents=${new_parents# $first_parent}
-			merge_args="--no-log --no-ff"
-			if ! do_with_author output eval \
-				git merge ${gpg_sign_opt:+$(git rev-parse \
-					--sq-quote "$gpg_sign_opt")} \
-				$allow_rerere_autoupdate "$merge_args" \
-				"$strategy_args" \
-				-m "$(git rev-parse --sq-quote "$msg_content")" \
-				"$new_parents"
-			then
-				printf "%s\n" "$msg_content" > "$GIT_DIR"/MERGE_MSG
-				die_with_patch $sha1 "$(eval_gettext "Error redoing merge \$sha1")"
-			fi
-			echo "$sha1 $(git rev-parse HEAD^0)" >> "$rewritten_list"
-			;;
-		*)
-			output eval git cherry-pick $allow_rerere_autoupdate \
-				$allow_empty_message \
-				${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")} \
-				"$strategy_args" "$@" ||
-				die_with_patch $sha1 "$(eval_gettext "Could not pick \$sha1")"
-			;;
-		esac
-		;;
-	esac
-}
-
-this_nth_commit_message () {
-	n=$1
-	eval_gettext "This is the commit message #\${n}:"
-}
-
-skip_nth_commit_message () {
-	n=$1
-	eval_gettext "The commit message #\${n} will be skipped:"
-}
-
-update_squash_messages () {
-	if test -f "$squash_msg"; then
-		mv "$squash_msg" "$squash_msg".bak || exit
-		count=$(($(sed -n \
-			-e "1s/^$comment_char[^0-9]*\([0-9][0-9]*\).*/\1/p" \
-			-e "q" < "$squash_msg".bak)+1))
-		{
-			printf '%s\n' "$comment_char $(eval_ngettext \
-				"This is a combination of \$count commit." \
-				"This is a combination of \$count commits." \
-				$count)"
-			sed -e 1d -e '2,/^./{
-				/^$/d
-			}' <"$squash_msg".bak
-		} >"$squash_msg"
-	else
-		commit_message HEAD >"$fixup_msg" ||
-		die "$(eval_gettext "Cannot write \$fixup_msg")"
-		count=2
-		{
-			printf '%s\n' "$comment_char $(gettext "This is a combination of 2 commits.")"
-			printf '%s\n' "$comment_char $(gettext "This is the 1st commit message:")"
-			echo
-			cat "$fixup_msg"
-		} >"$squash_msg"
-	fi
-	case $1 in
-	squash)
-		rm -f "$fixup_msg"
-		echo
-		printf '%s\n' "$comment_char $(this_nth_commit_message $count)"
-		echo
-		commit_message $2
-		;;
-	fixup)
-		echo
-		printf '%s\n' "$comment_char $(skip_nth_commit_message $count)"
-		echo
-		# Change the space after the comment character to TAB:
-		commit_message $2 | git stripspace --comment-lines | sed -e 's/ /	/'
-		;;
-	esac >>"$squash_msg"
-}
-
-peek_next_command () {
-	git stripspace --strip-comments <"$todo" | sed -n -e 's/ .*//p' -e q
-}
-
-# A squash/fixup has failed.  Prepare the long version of the squash
-# commit message, then die_with_patch.  This code path requires the
-# user to edit the combined commit message for all commits that have
-# been squashed/fixedup so far.  So also erase the old squash
-# messages, effectively causing the combined commit to be used as the
-# new basis for any further squash/fixups.  Args: sha1 rest
-die_failed_squash() {
-	sha1=$1
-	rest=$2
-	mv "$squash_msg" "$msg" || exit
-	rm -f "$fixup_msg"
-	cp "$msg" "$GIT_DIR"/MERGE_MSG || exit
-	warn
-	warn "$(eval_gettext "Could not apply \$sha1... \$rest")"
-	die_with_patch $sha1 ""
-}
-
-flush_rewritten_pending() {
-	test -s "$rewritten_pending" || return
-	newsha1="$(git rev-parse HEAD^0)"
-	sed "s/$/ $newsha1/" < "$rewritten_pending" >> "$rewritten_list"
-	rm -f "$rewritten_pending"
-}
-
-record_in_rewritten() {
-	oldsha1="$(git rev-parse $1)"
-	echo "$oldsha1" >> "$rewritten_pending"
-
-	case "$(peek_next_command)" in
-	squash|s|fixup|f)
-		;;
-	*)
-		flush_rewritten_pending
-		;;
-	esac
-}
-
-do_pick () {
-	sha1=$1
-	rest=$2
-	if test "$(git rev-parse HEAD)" = "$squash_onto"
-	then
-		# Set the correct commit message and author info on the
-		# sentinel root before cherry-picking the original changes
-		# without committing (-n).  Finally, update the sentinel again
-		# to include these changes.  If the cherry-pick results in a
-		# conflict, this means our behaviour is similar to a standard
-		# failed cherry-pick during rebase, with a dirty index to
-		# resolve before manually running git commit --amend then git
-		# rebase --continue.
-		git commit --allow-empty --allow-empty-message --amend \
-			   --no-post-rewrite -n -q -C $sha1 $signoff &&
-			pick_one -n $sha1 &&
-			git commit --allow-empty --allow-empty-message \
-				   --amend --no-post-rewrite -n -q -C $sha1 $signoff \
-				   ${gpg_sign_opt:+"$gpg_sign_opt"} ||
-				   die_with_patch $sha1 "$(eval_gettext "Could not apply \$sha1... \$rest")"
-	else
-		pick_one $sha1 ||
-			die_with_patch $sha1 "$(eval_gettext "Could not apply \$sha1... \$rest")"
-	fi
-}
-
-do_next () {
-	rm -f "$msg" "$author_script" "$amend" "$state_dir"/stopped-sha || exit
-	read -r command sha1 rest < "$todo"
-	case "$command" in
-	"$comment_char"*|''|noop|drop|d)
-		mark_action_done
-		;;
-	"$cr")
-		# Work around CR left by "read" (e.g. with Git for Windows' Bash).
-		mark_action_done
-		;;
-	pick|p)
-		comment_for_reflog pick
-
-		mark_action_done
-		do_pick $sha1 "$rest"
-		record_in_rewritten $sha1
-		;;
-	reword|r)
-		comment_for_reflog reword
-
-		mark_action_done
-		do_pick $sha1 "$rest"
-		git commit --amend --no-post-rewrite ${gpg_sign_opt:+"$gpg_sign_opt"} \
-			$allow_empty_message || {
-			warn "$(eval_gettext "\
-Could not amend commit after successfully picking \$sha1... \$rest
-This is most likely due to an empty commit message, or the pre-commit hook
-failed. If the pre-commit hook failed, you may need to resolve the issue before
-you are able to reword the commit.")"
-			exit_with_patch $sha1 1
-		}
-		record_in_rewritten $sha1
-		;;
-	edit|e)
-		comment_for_reflog edit
-
-		mark_action_done
-		do_pick $sha1 "$rest"
-		sha1_abbrev=$(git rev-parse --short $sha1)
-		warn "$(eval_gettext "Stopped at \$sha1_abbrev... \$rest")"
-		exit_with_patch $sha1 0
-		;;
-	squash|s|fixup|f)
-		case "$command" in
-		squash|s)
-			squash_style=squash
-			;;
-		fixup|f)
-			squash_style=fixup
-			;;
-		esac
-		comment_for_reflog $squash_style
-
-		test -f "$done" && has_action "$done" ||
-			die "$(eval_gettext "Cannot '\$squash_style' without a previous commit")"
-
-		mark_action_done
-		update_squash_messages $squash_style $sha1
-		author_script_content=$(get_author_ident_from_commit HEAD)
-		echo "$author_script_content" > "$author_script"
-		eval "$author_script_content"
-		if ! pick_one -n $sha1
-		then
-			git rev-parse --verify HEAD >"$amend"
-			die_failed_squash $sha1 "$rest"
-		fi
-		case "$(peek_next_command)" in
-		squash|s|fixup|f)
-			# This is an intermediate commit; its message will only be
-			# used in case of trouble.  So use the long version:
-			do_with_author output git commit --amend --no-verify -F "$squash_msg" \
-				${gpg_sign_opt:+"$gpg_sign_opt"} $allow_empty_message ||
-				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" \
-					${gpg_sign_opt:+"$gpg_sign_opt"} $allow_empty_message ||
-					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 \
-					${gpg_sign_opt:+"$gpg_sign_opt"} $allow_empty_message ||
-					die_failed_squash $sha1 "$rest"
-			fi
-			rm -f "$squash_msg" "$fixup_msg"
-			;;
-		esac
-		record_in_rewritten $sha1
-		;;
-	x|"exec")
-		read -r command rest < "$todo"
-		mark_action_done
-		eval_gettextln "Executing: \$rest"
-		"${SHELL:-@SHELL_PATH@}" -c "$rest" # Actual execution
-		status=$?
-		# Run in subshell because require_clean_work_tree can die.
-		dirty=f
-		(require_clean_work_tree "rebase" 2>/dev/null) || dirty=t
-		if test "$status" -ne 0
-		then
-			warn "$(eval_gettext "Execution failed: \$rest")"
-			test "$dirty" = f ||
-				warn "$(gettext "and made changes to the index and/or the working tree")"
-
-			warn "$(gettext "\
-You can fix the problem, and then run
-
-	git rebase --continue")"
-			warn
-			if test $status -eq 127		# command not found
-			then
-				status=1
-			fi
-			exit "$status"
-		elif test "$dirty" = t
-		then
-			# TRANSLATORS: after these lines is a command to be issued by the user
-			warn "$(eval_gettext "\
-Execution succeeded: \$rest
-but left changes to the index and/or the working tree
-Commit or stash your changes, and then run
-
-	git rebase --continue")"
-			warn
-			exit 1
-		fi
-		;;
-	*)
-		warn "$(eval_gettext "Unknown command: \$command \$sha1 \$rest")"
-		fixtodo="$(gettext "Please fix this using 'git rebase --edit-todo'.")"
-		if git rev-parse --verify -q "$sha1" >/dev/null
-		then
-			die_with_patch $sha1 "$fixtodo"
-		else
-			die "$fixtodo"
-		fi
-		;;
-	esac
-	test -s "$todo" && return
-
-	comment_for_reflog finish &&
-	newhead=$(git rev-parse HEAD) &&
-	case $head_name in
-	refs/*)
-		message="$GIT_REFLOG_ACTION: $head_name onto $onto" &&
-		git update-ref -m "$message" $head_name $newhead $orig_head &&
-		git symbolic-ref \
-		  -m "$GIT_REFLOG_ACTION: returning to $head_name" \
-		  HEAD $head_name
-		;;
-	esac && {
-		test ! -f "$state_dir"/verbose ||
-			git diff-tree --stat $orig_head..HEAD
-	} &&
-	{
-		test -s "$rewritten_list" &&
-		git notes copy --for-rewrite=rebase < "$rewritten_list" ||
-		true # we don't care if this copying failed
-	} &&
-	hook="$(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 &&
-		warn "$(eval_gettext "Successfully rebased and updated \$head_name.")"
-
-	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 || break
-	done
-}
-
-expand_todo_ids() {
-	git rebase--interactive --expand-ids
-}
-
-collapse_todo_ids() {
-	git rebase--interactive --shorten-ids
-}
-
-# Switch to the branch in $into and notify it in the reflog
-checkout_onto () {
-	GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $onto_name"
-	output git checkout $onto || die_abort "$(gettext "could not detach HEAD")"
-	git update-ref ORIG_HEAD $orig_head
-}
-
-get_missing_commit_check_level () {
-	check_level=$(git config --get rebase.missingCommitsCheck)
-	check_level=${check_level:-ignore}
-	# Don't be case sensitive
-	printf '%s' "$check_level" | tr 'A-Z' 'a-z'
-}
-
-# Initiate an action. If the cannot be any
-# further action it  may exec a command
-# or exit and not return.
-#
-# TODO: Consider a cleaner return model so it
-# never exits and always return 0 if process
-# is complete.
-#
-# Parameter 1 is the action to initiate.
-#
-# Returns 0 if the action was able to complete
-# and if 1 if further processing is required.
-initiate_action () {
-	case "$1" in
-	continue)
-		# do we have anything to commit?
-		if git diff-index --cached --quiet HEAD --
-		then
-			# Nothing to commit -- skip this commit
-
-			test ! -f "$GIT_DIR"/CHERRY_PICK_HEAD ||
-			rm "$GIT_DIR"/CHERRY_PICK_HEAD ||
-			die "$(gettext "Could not remove CHERRY_PICK_HEAD")"
-		else
-			if ! test -f "$author_script"
-			then
-				gpg_sign_opt_quoted=${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")}
-				die "$(eval_gettext "\
-You have staged changes in your working tree.
-If these changes are meant to be
-squashed into the previous commit, run:
-
-  git commit --amend \$gpg_sign_opt_quoted
-
-If they are meant to go into a new commit, run:
-
-  git commit \$gpg_sign_opt_quoted
-
-In both cases, once you're done, continue with:
-
-  git rebase --continue
-")"
-			fi
-			. "$author_script" ||
-				die "$(gettext "Error trying to find the author identity to amend commit")"
-			if test -f "$amend"
-			then
-				current_head=$(git rev-parse --verify HEAD)
-				test "$current_head" = $(cat "$amend") ||
-				die "$(gettext "\
-You have uncommitted changes in your working tree. Please commit them
-first and then run 'git rebase --continue' again.")"
-				do_with_author git commit --amend --no-verify -F "$msg" -e \
-					${gpg_sign_opt:+"$gpg_sign_opt"} $allow_empty_message ||
-					die "$(gettext "Could not commit staged changes.")"
-			else
-				do_with_author git commit --no-verify -F "$msg" -e \
-					${gpg_sign_opt:+"$gpg_sign_opt"} $allow_empty_message ||
-					die "$(gettext "Could not commit staged changes.")"
-			fi
-		fi
-
-		if test -r "$state_dir"/stopped-sha
-		then
-			record_in_rewritten "$(cat "$state_dir"/stopped-sha)"
-		fi
-
-		require_clean_work_tree "rebase"
-		do_rest
-		return 0
-		;;
-	skip)
-		git rerere clear
-		do_rest
-		return 0
-		;;
-	edit-todo)
-		git stripspace --strip-comments <"$todo" >"$todo".new
-		mv -f "$todo".new "$todo"
-		collapse_todo_ids
-		append_todo_help
-		gettext "
-You are editing the todo file of an ongoing interactive rebase.
-To continue rebase after editing, run:
-    git rebase --continue
-
-" | git stripspace --comment-lines >>"$todo"
-
-		git_sequence_editor "$todo" ||
-			die "$(gettext "Could not execute editor")"
-		expand_todo_ids
-
-		exit
-		;;
-	show-current-patch)
-		exec git show REBASE_HEAD --
-		;;
-	*)
-		return 1 # continue
-		;;
-	esac
-}
-
-setup_reflog_action () {
-	comment_for_reflog start
-
-	if test ! -z "$switch_to"
-	then
-		GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $switch_to"
-		output git checkout "$switch_to" -- ||
-			die "$(eval_gettext "Could not checkout \$switch_to")"
-
-		comment_for_reflog start
-	fi
-}
-
-init_basic_state () {
-	orig_head=$(git rev-parse --verify HEAD) || die "$(gettext "No HEAD?")"
-	mkdir -p "$state_dir" || die "$(eval_gettext "Could not create temporary \$state_dir")"
-	rm -f "$(git rev-parse --git-path REBASE_HEAD)"
-
-	: > "$state_dir"/interactive || die "$(gettext "Could not mark as interactive")"
-	write_basic_state
-}
-
-init_revisions_and_shortrevisions () {
-	shorthead=$(git rev-parse --short $orig_head)
-	shortonto=$(git rev-parse --short $onto)
-	if test -z "$rebase_root"
-		# this is now equivalent to ! -z "$upstream"
-	then
-		shortupstream=$(git rev-parse --short $upstream)
-		revisions=$upstream...$orig_head
-		shortrevisions=$shortupstream..$shorthead
-	else
-		revisions=$onto...$orig_head
-		shortrevisions=$shorthead
-		test -z "$squash_onto" ||
-		echo "$squash_onto" >"$state_dir"/squash-onto
-	fi
-}
-
-complete_action() {
-	test -s "$todo" || echo noop >> "$todo"
-	test -z "$autosquash" || git rebase--interactive --rearrange-squash || exit
-	test -n "$cmd" && git rebase--interactive --add-exec-commands --cmd "$cmd"
-
-	todocount=$(git stripspace --strip-comments <"$todo" | wc -l)
-	todocount=${todocount##* }
-
-cat >>"$todo" <<EOF
-
-$comment_char $(eval_ngettext \
-	"Rebase \$shortrevisions onto \$shortonto (\$todocount command)" \
-	"Rebase \$shortrevisions onto \$shortonto (\$todocount commands)" \
-	"$todocount")
-EOF
-	append_todo_help
-	gettext "
-However, if you remove everything, the rebase will be aborted.
-
-" | git stripspace --comment-lines >>"$todo"
-
-	if test -z "$keep_empty"
-	then
-		printf '%s\n' "$comment_char $(gettext "Note that empty commits are commented out")" >>"$todo"
-	fi
-
-
-	has_action "$todo" ||
-		return 2
-
-	cp "$todo" "$todo".backup
-	collapse_todo_ids
-	git_sequence_editor "$todo" ||
-		die_abort "$(gettext "Could not execute editor")"
-
-	has_action "$todo" ||
-		return 2
-
-	git rebase--interactive --check-todo-list || {
-		ret=$?
-		checkout_onto
-		exit $ret
-	}
-
-	expand_todo_ids
-	checkout_onto
-	do_rest
-}
-
-git_rebase__preserve_merges () {
-	initiate_action "$action"
-	ret=$?
-	if test $ret = 0; then
-		return 0
-	fi
-
-	setup_reflog_action
-	init_basic_state
-
-	if test -z "$rebase_root"
-	then
-		mkdir "$rewritten" &&
-		for c in $(git merge-base --all $orig_head $upstream)
-		do
-			echo $onto > "$rewritten"/$c ||
-				die "$(gettext "Could not init rewritten commits")"
-		done
-	else
-		mkdir "$rewritten" &&
-		echo $onto > "$rewritten"/root ||
-			die "$(gettext "Could not init rewritten commits")"
-	fi
-
-	init_revisions_and_shortrevisions
-
-	format=$(git config --get rebase.instructionFormat)
-	# the 'rev-list .. | sed' requires %m to parse; the instruction requires %H to parse
-	git rev-list --format="%m%H ${format:-%s}" \
-		--reverse --left-right --topo-order \
-		$revisions ${restrict_revision+^$restrict_revision} | \
-		sed -n "s/^>//p" |
-	while read -r sha1 rest
-	do
-		if test -z "$keep_empty" && is_empty_commit $sha1 && ! is_merge_commit $sha1
-		then
-			comment_out="$comment_char "
-		else
-			comment_out=
-		fi
-
-		if test -z "$rebase_root"
-		then
-			preserve=t
-			for p in $(git rev-list --parents -1 $sha1 | cut -d' ' -s -f2-)
-			do
-				if test -f "$rewritten"/$p
-				then
-					preserve=f
-				fi
-			done
-		else
-			preserve=f
-		fi
-		if test f = "$preserve"
-		then
-			touch "$rewritten"/$sha1
-			printf '%s\n' "${comment_out}pick $sha1 $rest" >>"$todo"
-		fi
-	done
-
-	# Watch for commits that been dropped by --cherry-pick
-	mkdir "$dropped"
-	# Save all non-cherry-picked changes
-	git rev-list $revisions --left-right --cherry-pick | \
-		sed -n "s/^>//p" > "$state_dir"/not-cherry-picks
-	# Now all commits and note which ones are missing in
-	# not-cherry-picks and hence being dropped
-	git rev-list $revisions |
-	while read rev
-	do
-		if test -f "$rewritten"/$rev &&
-		   ! sane_grep "$rev" "$state_dir"/not-cherry-picks >/dev/null
-		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"/$rev
-			sha1=$(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
-
-	complete_action
-}