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# 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
#
# The original idea comes from Eric W. Biederman, in
# http://article.gmane.org/gmane.comp.version-control.git/22407
#
# 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="$state_dir"/rewritten-pending
strategy_args=
if test -n "$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="$resolvemsg"
export GIT_CHERRY_PICK_HELP
comment_char=$(git config --get core.commentchar 2>/dev/null | cut -c1)
: ${comment_char:=#}
warn () {
printf '%s\n' "$*" >&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
printf "Rebasing (%d/%d)\r" $new_count $total
test -z "$verbose" || echo
fi
}
append_todo_help () {
git stripspace --comment-lines >>"$todo" <<\EOF
Commands:
p, pick = use commit
r, reword = use commit, but edit the commit message
e, edit = use commit, but stop for amending
s, squash = use commit, but meld into previous commit
f, fixup = like "squash", but discard this commit's log message
x, exec = run command (the rest of the line) using shell
These lines can be re-ordered; they are executed from top to bottom.
If you remove a line here THAT COMMIT WILL BE LOST.
EOF
}
make_patch () {
sha1_and_parents="$(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
make_patch "$1"
git rerere
die "$2"
}
exit_with_patch () {
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 $gpg_sign_opt_quoted"
warn
warn "Once you are satisfied with your changes, run"
warn
warn " git rebase --continue"
warn
exit $2
}
die_abort () {
rm -rf "$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 ||
die "$1: not a commit that can be picked")
ptree=$(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 "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 \
${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")} \
"$strategy_args" $empty_args $ff "$@"
}
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
then
if 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 "Cannot write current commit's replacement sha1"
fi
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 "Fast-forward to $sha1"
output git reset --hard $sha1 ||
die "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 "Cannot move HEAD to $first_parent"
fi
case "$new_parents" in
' '*' '*)
test "a$1" = a-n && die "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 ${gpg_sign_opt:+"$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 $sha1"
fi
echo "$sha1 $(git rev-parse HEAD^0)" >> "$rewritten_list"
;;
*)
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
;;
esac
}
nth_string () {
case "$1" in
*1[0-9]|*[04-9]) echo "$1"th;;
*1) echo "$1"st;;
*2) echo "$1"nd;;
*3) echo "$1"rd;;
esac
}
update_squash_messages () {
if test -f "$squash_msg"; then
mv "$squash_msg" "$squash_msg".bak || exit
count=$(($(sed -n \
-e "1s/^. This is a combination of \(.*\) commits\./\1/p" \
-e "q" < "$squash_msg".bak)+1))
{
printf '%s\n' "$comment_char This is a combination of $count commits."
sed -e 1d -e '2,/^./{
/^$/d
}' <"$squash_msg".bak
} >"$squash_msg"
else
commit_message HEAD > "$fixup_msg" || die "Cannot write $fixup_msg"
count=2
{
printf '%s\n' "$comment_char This is a combination of 2 commits."
printf '%s\n' "$comment_char The first commit's message is:"
echo
cat "$fixup_msg"
} >"$squash_msg"
fi
case $1 in
squash)
rm -f "$fixup_msg"
echo
printf '%s\n' "$comment_char This is the $(nth_string $count) commit message:"
echo
commit_message $2
;;
fixup)
echo
printf '%s\n' "$comment_char The $(nth_string $count) commit message will be skipped:"
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 <"$todo" | sed -n -e 's/ .*//p' -e q
}
# A squash/fixup has failed. Prepare the long version of the squash
# commit message, then die_with_patch. This code path requires the
# user to edit the combined commit message for all commits that have
# been squashed/fixedup so far. So also erase the old squash
# messages, effectively causing the combined commit to be used as the
# new basis for any further squash/fixups. Args: sha1 rest
die_failed_squash() {
mv "$squash_msg" "$msg" || exit
rm -f "$fixup_msg"
cp "$msg" "$GIT_DIR"/MERGE_MSG || exit
warn
warn "Could not apply $1... $2"
die_with_patch $1 ""
}
flush_rewritten_pending() {
test -s "$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 () {
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 $1 &&
pick_one -n $1 &&
git commit --allow-empty --allow-empty-message \
--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 ||
die_with_patch $1 "Could not apply $1... $2"
fi
}
do_next () {
rm -f "$msg" "$author_script" "$amend" || exit
read -r command sha1 rest < "$todo"
case "$command" in
"$comment_char"*|''|noop)
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"} || {
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"
warn "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"
warn "Stopped at $sha1... $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 "$done" ||
die "Cannot '$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"} ||
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"} ||
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"} ||
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
printf 'Executing: %s\n' "$rest"
# "exec" command doesn't take a sha1 in the todo-list.
# => can't just use $sha1 here.
git rev-parse --verify HEAD > "$state_dir"/stopped-sha
${SHELL:-@SHELL_PATH@} -c "$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 "Execution failed: $rest"
test "$dirty" = f ||
warn "and made changes to the index and/or the working tree"
warn "You can fix the problem, and then run"
warn
warn " git rebase --continue"
warn
if test $status -eq 127 # command not found
then
status=1
fi
exit "$status"
elif test "$dirty" = t
then
warn "Execution succeeded: $rest"
warn "but left changes to the index and/or the working tree"
warn "Commit or stash your changes, and then run"
warn
warn " git rebase --continue"
warn
exit 1
fi
;;
*)
warn "Unknown command: $command $sha1 $rest"
fixtodo="Please fix this using 'git rebase --edit-todo'."
if git rev-parse --verify -q "$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 < "$rewritten_list" ||
true # we don't care if this copying failed
} &&
if test -x "$GIT_DIR"/hooks/post-rewrite &&
test -s "$rewritten_list"; then
"$GIT_DIR"/hooks/post-rewrite rebase < "$rewritten_list"
true # we don't care if this hook failed
fi &&
warn "Successfully rebased and updated $head_name."
return 1 # not failure; just to break the do_rest loop
}
# can only return 0, when the infinite loop breaks
do_rest () {
while :
do
do_next || break
done
}
# skip picking commits whose parents are unchanged
skip_unnecessary_picks () {
fd=3
while read -r command rest
do
# fd=3 means we skip the command
case "$fd,$command" in
3,pick|3,p)
# pick a commit whose parent is current $onto -> skip
sha1=${rest%% *}
case "$(git rev-parse --verify --quiet "$sha1"^)" in
"$onto"*)
onto=$sha1
;;
*)
fd=1
;;
esac
;;
3,"$comment_char"*|3,)
# copy comments
;;
*)
fd=1
;;
esac
printf '%s\n' "$command${rest:+ }$rest" >&$fd
done <"$todo" >"$todo.new" 3>>"$done" &&
mv -f "$todo".new "$todo" &&
case "$(peek_next_command)" in
squash|s|fixup|f)
record_in_rewritten "$onto"
;;
esac ||
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
# "fixup"/"squash".
rearrange_squash () {
# extract fixup!/squash! lines and resolve any referenced sha1's
while read -r pick sha1 message
do
case "$message" in
"squash! "*|"fixup! "*)
action="${message%%!*}"
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" "$rest"
# if it's a single word, try to resolve to a full sha1 and
# emit a second copy. This allows us to match on both message
# and on sha1 prefix
if test "${rest#* }" = "$rest"; then
fullsha="$(git rev-parse -q --verify "$rest" 2>/dev/null)"
if test -n "$fullsha"; then
# prefix the action to uniquely identify this line as
# intended for full sha1 match
echo "$sha1 +$action $prefix $fullsha"
fi
fi
esac
done >"$1.sq" <"$1"
test -s "$1.sq" || return
used=
while read -r pick sha1 message
do
case " $used" in
*" $sha1 "*) continue ;;
esac
printf '%s\n' "$pick $sha1 $message"
used="$used$sha1 "
while read -r squash action msg_prefix msg_content
do
case " $used" in
*" $squash "*) continue ;;
esac
emit=0
case "$action" in
+*)
action="${action#+}"
# full sha1 prefix test
case "$msg_content" in "$sha1"*) emit=1;; esac ;;
*)
# message prefix test
case "$message" in "$msg_content"*) emit=1;; esac ;;
esac
if test $emit = 1; then
real_prefix=$(echo "$msg_prefix" | sed "s/,/! /g")
printf '%s\n' "$action $squash ${real_prefix}$msg_content"
used="$used$squash "
fi
done <"$1.sq"
done >"$1.rearranged" <"$1"
cat "$1.rearranged" >"$1"
rm -f "$1.sq" "$1.rearranged"
}
# Add commands after a pick or after a squash/fixup serie
# in the todo list.
add_exec_commands () {
{
first=t
while read -r insn rest
do
case $insn in
pick)
test -n "$first" ||
printf "%s" "$cmd"
;;
esac
printf "%s %s\n" "$insn" "$rest"
first=
done
printf "%s" "$cmd"
} <"$1" >"$1.new" &&
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?
if git diff-index --cached --quiet HEAD --
then
: Nothing to commit -- skip this
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 $gpg_sign_opt_quoted
If they are meant to go into a new commit, run:
git commit $gpg_sign_opt_quoted
In both case, once you're done, continue with:
git rebase --continue
"
fi
. "$author_script" ||
die "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 "\
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"} ||
die "Could not commit staged changes."
else
do_with_author git commit --no-verify -F "$msg" -e \
${gpg_sign_opt:+"$gpg_sign_opt"} ||
die "Could not commit staged changes."
fi
fi
record_in_rewritten "$(cat "$state_dir"/stopped-sha)"
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 >>"$todo" <<\EOF
You are editing the todo file of an ongoing interactive rebase.
To continue rebase after editing, run:
git rebase --continue
EOF
git_sequence_editor "$todo" ||
die "Could not execute editor"
expand_todo_ids
exit
;;
esac
git var GIT_COMMITTER_IDENT >/dev/null ||
die "You need to set your committer info first"
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 "Could not checkout $switch_to"
comment_for_reflog start
fi
orig_head=$(git rev-parse --verify HEAD) || die "No HEAD?"
mkdir -p "$state_dir" || die "Could not create temporary $state_dir"
: > "$state_dir"/interactive || die "Could not mark as interactive"
write_basic_state
if test t = "$preserve_merges"
then
if test -z "$rebase_root"
then
mkdir "$rewritten" &&
for c in $(git merge-base --all $orig_head $upstream)
do
echo $onto > "$rewritten"/$c ||
die "Could not init rewritten commits"
done
else
mkdir "$rewritten" &&
echo $onto > "$rewritten"/root ||
die "Could not init rewritten commits"
fi
# No cherry-pick because our first pass is to determine
# parents to rewrite and skipping dropped commits would
# prematurely end our probe
merges_option=
else
merges_option="--no-merges --cherry-pick"
fi
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
fi
git rev-list $merges_option --pretty=oneline --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 t != "$preserve_merges"
then
printf '%s\n' "${comment_out}pick $sha1 $rest" >>"$todo"
else
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
fi
done
# Watch for commits that been dropped by --cherry-pick
if test t = "$preserve_merges"
then
mkdir "$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"/$rev && test "$(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"/$rev
sha1=$(git rev-list -1 $rev)
sane_grep -v "^[a-z][a-z]* $sha1" <"$todo" > "${todo}2" ; mv "${todo}2" "$todo"
rm "$rewritten"/$rev
fi
done
fi
test -s "$todo" || echo noop >> "$todo"
test -n "$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 $shortonto ($todocount command(s))
EOF
append_todo_help
git stripspace --comment-lines >>"$todo" <<\EOF
However, if you remove everything, the rebase will be aborted.
EOF
if test -z "$keep_empty"
then
printf '%s\n' "$comment_char Note that empty commits are commented out" >>"$todo"
fi
has_action "$todo" ||
return 2
cp "$todo" "$todo".backup
collapse_todo_ids
git_sequence_editor "$todo" ||
die_abort "Could not execute editor"
has_action "$todo" ||
return 2
expand_todo_ids
test -d "$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
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