Merge branch 'ag/rebase-p'

Separate "rebase -p" codepath out of "rebase -i" implementation to
slim down the latter and make it easier to manage.

* ag/rebase-p:
  rebase: remove -p code from git-rebase--interactive.sh
  rebase: use the new git-rebase--preserve-merges.sh
  rebase: strip unused code in git-rebase--preserve-merges.sh
  rebase: introduce a dedicated backend for --preserve-merges
This commit is contained in:
Junio C Hamano 2018-06-25 13:22:39 -07:00
commit f3fec40e8d
5 changed files with 1048 additions and 803 deletions

1
.gitignore vendored
View File

@ -119,6 +119,7 @@
/git-rebase--helper
/git-rebase--interactive
/git-rebase--merge
/git-rebase--preserve-merges
/git-receive-pack
/git-reflog
/git-remote

View File

@ -620,6 +620,7 @@ SCRIPT_LIB += git-mergetool--lib
SCRIPT_LIB += git-parse-remote
SCRIPT_LIB += git-rebase--am
SCRIPT_LIB += git-rebase--interactive
SCRIPT_LIB += git-rebase--preserve-merges
SCRIPT_LIB += git-rebase--merge
SCRIPT_LIB += git-sh-setup
SCRIPT_LIB += git-sh-i18n
@ -2397,6 +2398,7 @@ LOCALIZED_C = $(C_OBJ:o=c) $(LIB_H) $(GENERATED_H)
LOCALIZED_SH = $(SCRIPT_SH)
LOCALIZED_SH += git-parse-remote.sh
LOCALIZED_SH += git-rebase--interactive.sh
LOCALIZED_SH += git-rebase--preserve-merges.sh
LOCALIZED_SH += git-sh-setup.sh
LOCALIZED_PERL = $(SCRIPT_PERL)

View File

@ -13,85 +13,6 @@
# 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")
empty_tree=$(git hash-object -t tree /dev/null)
strategy_args=${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="$resolvemsg"
export GIT_CHERRY_PICK_HELP
@ -107,15 +28,6 @@ case "$comment_char" in
;;
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="$GIT_REFLOG_ACTION"
comment_for_reflog () {
@ -127,33 +39,6 @@ comment_for_reflog () {
esac
}
last_count=
mark_action_done () {
sed -e 1q < "$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
}
# 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 "$done"
}
append_todo_help () {
gettext "
Commands:
@ -186,50 +71,6 @@ If you remove a line here THAT COMMIT WILL BE LOST.
fi
}
make_patch () {
sha1_and_parents="$(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"
@ -240,30 +81,6 @@ 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 "$1"^^{tree} 2>/dev/null) ||
ptree=$empty_tree
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 "$GIT_SEQUENCE_EDITOR"
then
@ -277,455 +94,6 @@ git_sequence_editor () {
eval "$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 "$sha1"
then
empty_args="--allow-empty"
fi
test -d "$rewritten" &&
pick_one_preserving_merges "$@" && return
output eval git cherry-pick $allow_rerere_autoupdate $allow_empty_message \
${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")} \
$signoff "$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 () {
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--helper --expand-ids
}
@ -763,77 +131,13 @@ get_missing_commit_check_level () {
initiate_action () {
case "$1" in
continue)
if test ! -d "$rewritten"
then
exec git rebase--helper ${force_rebase:+--no-ff} $allow_empty_message \
--continue
fi
# do we have anything to commit?
if git diff-index --cached --quiet HEAD --
then
# Nothing to commit -- skip this commit
test ! -f "$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
exec git rebase--helper ${force_rebase:+--no-ff} $allow_empty_message \
--continue
;;
skip)
git rerere clear
if test ! -d "$rewritten"
then
exec git rebase--helper ${force_rebase:+--no-ff} $allow_empty_message \
--continue
fi
do_rest
return 0
exec git rebase--helper ${force_rebase:+--no-ff} $allow_empty_message \
--continue
;;
edit-todo)
git stripspace --strip-comments <"$todo" >"$todo".new
@ -947,18 +251,14 @@ EOF
expand_todo_ids
test -d "$rewritten" || test -n "$force_rebase" ||
test -n "$force_rebase" ||
onto="$(git rebase--helper --skip-unnecessary-picks)" ||
die "Could not skip unnecessary pick commands"
checkout_onto
if test ! -d "$rewritten"
then
require_clean_work_tree "rebase"
exec git rebase--helper ${force_rebase:+--no-ff} $allow_empty_message \
--continue
fi
do_rest
require_clean_work_tree "rebase"
exec git rebase--helper ${force_rebase:+--no-ff} $allow_empty_message \
--continue
}
git_rebase__interactive () {
@ -981,91 +281,3 @@ git_rebase__interactive () {
complete_action
}
git_rebase__interactive__preserve_merges () {
initiate_action "$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
}

File diff suppressed because it is too large Load Diff

View File

@ -207,7 +207,14 @@ run_specific_rebase () {
autosquash=
fi
. git-rebase--$type
git_rebase__$type${preserve_merges:+__preserve_merges}
if test -z "$preserve_merges"
then
git_rebase__$type
else
git_rebase__preserve_merges
fi
ret=$?
if test $ret -eq 0
then
@ -239,7 +246,12 @@ then
state_dir="$apply_dir"
elif test -d "$merge_dir"
then
if test -f "$merge_dir"/interactive
if test -d "$merge_dir"/rewritten
then
type=preserve-merges
interactive_rebase=explicit
preserve_merges=t
elif test -f "$merge_dir"/interactive
then
type=interactive
interactive_rebase=explicit
@ -402,14 +414,14 @@ if test -n "$action"
then
test -z "$in_progress" && die "$(gettext "No rebase in progress?")"
# Only interactive rebase uses detailed reflog messages
if test "$type" = interactive && test "$GIT_REFLOG_ACTION" = rebase
if test -n "$interactive_rebase" && test "$GIT_REFLOG_ACTION" = rebase
then
GIT_REFLOG_ACTION="rebase -i ($action)"
export GIT_REFLOG_ACTION
fi
fi
if test "$action" = "edit-todo" && test "$type" != "interactive"
if test "$action" = "edit-todo" && test -z "$interactive_rebase"
then
die "$(gettext "The --edit-todo action can only be used during interactive rebase.")"
fi
@ -487,7 +499,13 @@ fi
if test -n "$interactive_rebase"
then
type=interactive
if test -z "$preserve_merges"
then
type=interactive
else
type=preserve-merges
fi
state_dir="$merge_dir"
elif test -n "$do_merge"
then
@ -647,7 +665,7 @@ require_clean_work_tree "rebase" "$(gettext "Please commit or stash them.")"
# but this should be done only when upstream and onto are the same
# and if this is not an interactive rebase.
mb=$(git merge-base "$onto" "$orig_head")
if test "$type" != interactive && test "$upstream" = "$onto" &&
if test -z "$interactive_rebase" && test "$upstream" = "$onto" &&
test "$mb" = "$onto" && test -z "$restrict_revision" &&
# linear history?
! (git rev-list --parents "$onto".."$orig_head" | sane_grep " .* ") > /dev/null
@ -691,7 +709,7 @@ then
GIT_PAGER='' git diff --stat --summary "$mb" "$onto"
fi
test "$type" = interactive && run_specific_rebase
test -n "$interactive_rebase" && run_specific_rebase
# Detach HEAD and reset the tree
say "$(gettext "First, rewinding head to replay your work on top of it...")"