-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
-}
-