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+#!/bin/sh
+#
+# Copyright (c) 2006 Johannes E. Schindelin
+
+# SHORT DESCRIPTION
+#
+# This script makes it easy to fix up commits in the middle of a series,
+# and rearrange commits.
+#
+# The original idea comes from Eric W. Biederman, in
+# http://article.gmane.org/gmane.comp.version-control.git/22407
+
+. git-sh-setup
+
+# 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="$state_dir"/dropped
+
+# A script to set the GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and
+# GIT_AUTHOR_DATE that will be used for the commit that is currently
+# being rebased.
+author_script="$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="$state_dir"/rewritten-pending
+
+GIT_CHERRY_PICK_HELP="$resolvemsg"
+export GIT_CHERRY_PICK_HELP
+
+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 "$todo"
+ new_count=$(sane_grep -c '^[^#]' < "$done")
+ total=$(($new_count+$(sane_grep -c '^[^#]' < "$todo")))
+ if test "$last_count" != "$new_count"
+ then
+ last_count=$new_count
+ printf "Rebasing (%d/%d)\r" $new_count $total
+ test -z "$verbose" || echo
+ 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
+ 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"
+ warn "You can amend the commit now, with"
+ warn
+ warn " git commit --amend"
+ 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 () {
+ sane_grep '^[^#]' "$1" >/dev/null
+}
+
+# Run command with GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and
+# GIT_AUTHOR_DATE exported from the current environment.
+do_with_author () {
+ (
+ export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
+ "$@"
+ )
+}
+
+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: $sha1"
+ test -d "$rewritten" &&
+ pick_one_preserving_merges "$@" && return
+ output git cherry-pick $ff "$@"
+}
+
+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}
+ if ! do_with_author output \
+ git merge --no-ff ${strategy:+-s $strategy} -m \
+ "$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 git cherry-pick "$@" ||
+ 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))
+ {
+ echo "# 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 $fixup_msg"
+ count=2
+ {
+ echo "# This is a combination of 2 commits."
+ echo "# The first commit's message is:"
+ echo
+ cat "$fixup_msg"
+ } >"$squash_msg"
+ fi
+ case $1 in
+ squash)
+ rm -f "$fixup_msg"
+ echo
+ echo "# This is the $(nth_string $count) commit message:"
+ echo
+ commit_message $2
+ ;;
+ fixup)
+ echo
+ echo "# The $(nth_string $count) commit message will be skipped:"
+ echo
+ commit_message $2 | sed -e 's/^/# /'
+ ;;
+ esac >>"$squash_msg"
+}
+
+peek_next_command () {
+ sed -n -e "/^#/d" -e '/^$/d' -e "s/ .*//p" -e "q" < "$todo"
+}
+
+# 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_next () {
+ rm -f "$msg" "$author_script" "$amend" || exit
+ read -r command sha1 rest < "$todo"
+ case "$command" in
+ '#'*|''|noop)
+ mark_action_done
+ ;;
+ pick|p)
+ comment_for_reflog pick
+
+ mark_action_done
+ pick_one $sha1 ||
+ die_with_patch $sha1 "Could not apply $sha1... $rest"
+ record_in_rewritten $sha1
+ ;;
+ reword|r)
+ comment_for_reflog reword
+
+ mark_action_done
+ pick_one $sha1 ||
+ die_with_patch $sha1 "Could not apply $sha1... $rest"
+ git commit --amend --no-post-rewrite || {
+ 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
+ pick_one $sha1 ||
+ die_with_patch $sha1 "Could not apply $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"
+ output git reset --soft HEAD^
+ pick_one -n $sha1 || die_failed_squash $sha1 "$rest"
+ case "$(peek_next_command)" in
+ squash|s|fixup|f)
+ # This is an intermediate commit; its message will only be
+ # used in case of trouble. So use the long version:
+ do_with_author output git commit --no-verify -F "$squash_msg" ||
+ die_failed_squash $sha1 "$rest"
+ ;;
+ *)
+ # This is the final command of this squash/fixup group
+ if test -f "$fixup_msg"
+ then
+ do_with_author git commit --no-verify -F "$fixup_msg" ||
+ 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 --no-verify -e ||
+ 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
+ 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 $rest"
+ if git rev-parse --verify -q "$sha1" >/dev/null
+ then
+ die_with_patch $sha1 "Please fix this in the file $todo."
+ else
+ die "Please fix this in the file $todo."
+ fi
+ ;;
+ esac
+ test -s "$todo" && return
+
+ comment_for_reflog finish &&
+ shortonto=$(git rev-parse --short $onto) &&
+ newhead=$(git rev-parse HEAD) &&
+ case $head_name in
+ refs/*)
+ message="$GIT_REFLOG_ACTION: $head_name onto $shortonto" &&
+ git update-ref -m "$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 < "$rewritten_list"
+ true # we don't care if this hook failed
+ fi &&
+ rm -rf "$state_dir" &&
+ git gc --auto &&
+ warn "Successfully rebased and updated $head_name."
+
+ exit
+}
+
+do_rest () {
+ while :
+ do
+ do_next
+ done
+}
+
+# skip picking commits whose parents are unchanged
+skip_unnecessary_picks () {
+ fd=3
+ while read -r command rest
+ do
+ # fd=3 means we skip the command
+ case "$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,#*|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 "$onto"
+ ;;
+ esac ||
+ die "Could not skip unnecessary pick commands"
+}
+
+# Rearrange the todo list that has both "pick sha1 msg" and
+# "pick sha1 fixup!/squash! msg" appears in it so that the latter
+# comes immediately after the former, and change "pick" to
+# "fixup"/"squash".
+rearrange_squash () {
+ # extract fixup!/squash! lines and resolve any referenced sha1's
+ while read -r pick sha1 message
+ do
+ case "$message" in
+ "squash! "*|"fixup! "*)
+ action="${message%%!*}"
+ rest="${message#*! }"
+ echo "$sha1 $action $rest"
+ # if it's a single word, try to resolve to a full sha1 and
+ # emit a second copy. This allows us to match on both message
+ # and on sha1 prefix
+ if test "${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 $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_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 $emit = 1; then
+ printf '%s\n' "$action $squash $action! $msg_content"
+ used="$used$squash "
+ fi
+ done <"$1.sq"
+ done >"$1.rearranged" <"$1"
+ cat "$1.rearranged" >"$1"
+ rm -f "$1.sq" "$1.rearranged"
+}
+
+case "$action" in
+continue)
+ # do we have anything to commit?
+ if git diff-index --cached --quiet --ignore-submodules HEAD --
+ then
+ : Nothing to commit -- skip this
+ else
+ if ! test -f "$author_script"
+ then
+ die "You have staged changes in your working tree. If these changes are meant to be
+squashed into the previous commit, run:
+
+ git commit --amend
+
+If they are meant to go into a new commit, run:
+
+ git commit
+
+In both case, once you're done, continue with:
+
+ git rebase --continue
+"
+ fi
+ . "$author_script" ||
+ die "Error trying to find the author identity to amend commit"
+ current_head=
+ 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."
+ git reset --soft HEAD^ ||
+ die "Cannot rewind the HEAD"
+ fi
+ do_with_author git commit --no-verify -F "$msg" -e || {
+ test -n "$current_head" && git reset --soft $current_head
+ die "Could not commit staged changes."
+ }
+ fi
+
+ record_in_rewritten "$(cat "$state_dir"/stopped-sha)"
+
+ require_clean_work_tree "rebase"
+ do_rest
+ ;;
+skip)
+ git rerere clear
+
+ do_rest
+ ;;
+esac
+
+git var GIT_COMMITTER_IDENT >/dev/null ||
+ die "You need to set your committer info first"
+
+comment_for_reflog start
+
+if test ! -z "$switch_to"
+then
+ output git checkout "$switch_to" -- ||
+ die "Could not checkout $switch_to"
+fi
+
+orig_head=$(git rev-parse --verify HEAD) || die "No HEAD?"
+mkdir "$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 --abbrev-commit \
+ --abbrev=7 --reverse --left-right --topo-order \
+ $revisions | \
+ sed -n "s/^>//p" |
+while read -r shortsha1 rest
+do
+ if test t != "$preserve_merges"
+ then
+ printf '%s\n' "pick $shortsha1 $rest" >> "$todo"
+ else
+ sha1=$(git rev-parse $shortsha1)
+ if test -z "$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' "pick $shortsha1 $rest" >> "$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"/$rev -a "$(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" "$todo"
+ rm "$rewritten"/$rev
+ fi
+ done
+fi
+
+test -s "$todo" || echo noop >> "$todo"
+test -n "$autosquash" && rearrange_squash "$todo"
+cat >> "$todo" << EOF
+
+# Rebase $shortrevisions onto $shortonto
+#
+# Commands:
+# p, pick = use commit
+# r, reword = use commit, but edit the commit message
+# e, edit = use commit, but stop for amending
+# s, squash = use commit, but meld into previous commit
+# f, fixup = like "squash", but discard this commit's log message
+# x, exec = run command (the rest of the line) using shell
+#
+# If you remove a line here THAT COMMIT WILL BE LOST.
+# However, if you remove everything, the rebase will be aborted.
+#
+EOF
+
+has_action "$todo" ||
+ die_abort "Nothing to do"
+
+cp "$todo" "$todo".backup
+git_sequence_editor "$todo" ||
+ die_abort "Could not execute editor"
+
+has_action "$todo" ||
+ die_abort "Nothing to do"
+
+test -d "$rewritten" || test -n "$force_rebase" || skip_unnecessary_picks
+
+output git checkout $onto || die_abort "could not detach HEAD"
+git update-ref ORIG_HEAD $orig_head
+do_rest
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-05 21:47:53 +0000