-#!/bin/sh
+# 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
-
-# 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
-
-OPTIONS_KEEPDASHDASH=
-OPTIONS_SPEC="\
-git-rebase [-i] [options] [--] <upstream> [<branch>]
-git-rebase [-i] (--continue | --abort | --skip)
---
- Available options are
-v,verbose display a diffstat of what changed upstream
-onto= rebase onto given branch instead of upstream
-p,preserve-merges try to recreate merges instead of ignoring them
-s,strategy= use the given merge strategy
-m,merge always used (no-op)
-i,interactive always used (no-op)
- Actions:
-continue continue rebasing process
-abort abort rebasing process and restore original branch
-skip skip current patch and continue rebasing process
-no-verify override pre-rebase hook from stopping the operation
-root rebase all reachable commmits up to the root(s)
-"
-
-. git-sh-setup
-require_work_tree
-
-DOTEST="$GIT_DIR/rebase-merge"
-TODO="$DOTEST"/git-rebase-todo
-DONE="$DOTEST"/done
-MSG="$DOTEST"/message
-SQUASH_MSG="$DOTEST"/message-squash
-REWRITTEN="$DOTEST"/rewritten
-DROPPED="$DOTEST"/dropped
-PRESERVE_MERGES=
-STRATEGY=
-ONTO=
-VERBOSE=
-OK_TO_SKIP_PRE_REBASE=
-REBASE_ROOT=
-
-GIT_CHERRY_PICK_HELP=" After resolving the conflicts,
-mark the corrected paths with 'git add <paths>', and
-run 'git rebase --continue'"
-export GIT_CHERRY_PICK_HELP
-
-warn () {
- echo "$*" >&2
-}
-
-output () {
- case "$VERBOSE" in
- '')
- output=$("$@" 2>&1 )
- status=$?
- test $status != 0 && printf "%s\n" "$output"
- return $status
- ;;
- *)
- "$@"
- ;;
- esac
-}
+# https://public-inbox.org/git/m1odwkyuf5.fsf_-_@ebiederm.dsl.xmission.com/
+#
+# 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
-run_pre_rebase_hook () {
- if test -z "$OK_TO_SKIP_PRE_REBASE" &&
- test -x "$GIT_DIR/hooks/pre-rebase"
- then
- "$GIT_DIR/hooks/pre-rebase" ${1+"$@"} || {
- echo >&2 "The pre-rebase hook refused to rebase."
- exit 1
- }
- fi
-}
+GIT_CHERRY_PICK_HELP="$resolvemsg"
+export GIT_CHERRY_PICK_HELP
-require_clean_work_tree () {
- # test if working tree is dirty
- git rev-parse --verify HEAD > /dev/null &&
- git update-index --ignore-submodules --refresh &&
- git diff-files --quiet --ignore-submodules &&
- git diff-index --cached --quiet HEAD --ignore-submodules -- ||
- die "Working tree is dirty"
-}
+comment_char=$(git config --get core.commentchar 2>/dev/null)
+case "$comment_char" in
+'' | auto)
+ comment_char="#"
+ ;;
+?)
+ ;;
+*)
+ comment_char=$(echo "$comment_char" | cut -c1)
+ ;;
+esac
-ORIG_REFLOG_ACTION="$GIT_REFLOG_ACTION"
+orig_reflog_action="$GIT_REFLOG_ACTION"
comment_for_reflog () {
- case "$ORIG_REFLOG_ACTION" in
+ 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 "$TODO"
- count=$(grep -c '^[^#]' < "$DONE")
- total=$(($count+$(grep -c '^[^#]' < "$TODO")))
- if test "$last_count" != "$count"
+append_todo_help () {
+ gettext "
+Commands:
+p, pick <commit> = use commit
+r, reword <commit> = use commit, but edit the commit message
+e, edit <commit> = use commit, but stop for amending
+s, squash <commit> = use commit, but meld into previous commit
+f, fixup <commit> = like \"squash\", but discard this commit's log message
+x, exec <command> = run command (the rest of the line) using shell
+d, drop <commit> = remove commit
+l, label <label> = label current HEAD with a name
+t, reset <label> = reset HEAD to a label
+m, merge [-C <commit> | -c <commit>] <label> [# <oneline>]
+. create a merge commit using the original merge commit's
+. message (or the oneline, if no original merge commit was
+. specified). Use -c <commit> to reword the commit message.
+
+These lines can be re-ordered; they are executed from top to bottom.
+" | git stripspace --comment-lines >>"$todo"
+
+ if test $(get_missing_commit_check_level) = error
then
- last_count=$count
- printf "Rebasing (%d/%d)\r" $count $total
- test -z "$VERBOSE" || echo
+ 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 "$1^!"
- ;;
- *)
- echo "Root commit"
- ;;
- esac > "$DOTEST"/patch
- test -f "$DOTEST"/message ||
- git cat-file commit "$1" | sed "1,/^$/d" > "$DOTEST"/message
- test -f "$DOTEST"/author-script ||
- get_author_ident_from_commit "$1" > "$DOTEST"/author-script
-}
-
-die_with_patch () {
- make_patch "$1"
- git rerere
- die "$2"
-}
-
die_abort () {
- rm -rf "$DOTEST"
+ apply_autostash
+ rm -rf "$state_dir"
die "$1"
}
has_action () {
- grep '^[^#]' "$1" >/dev/null
-}
-
-pick_one () {
- no_ff=
- case "$1" in -n) sha1=$2; no_ff=t ;; *) sha1=$1 ;; esac
- output git rev-parse --verify $sha1 || die "Invalid commit name: $sha1"
- test -d "$REWRITTEN" &&
- pick_one_preserving_merges "$@" && return
- if test ! -z "$REBASE_ROOT"
- then
- output git cherry-pick "$@"
- return
- fi
- parent_sha1=$(git rev-parse --verify $sha1^) ||
- die "Could not get the parent of $sha1"
- current_sha1=$(git rev-parse --verify HEAD)
- if test "$no_ff$current_sha1" = "$parent_sha1"; then
- output git reset --hard $sha1
- test "a$1" = a-n && output git reset --soft $current_sha1
- sha1=$(git rev-parse --short $sha1)
- output warn Fast forward to $sha1
- else
- output git cherry-pick "$@"
- fi
+ test -n "$(git stripspace --strip-comments <"$1")"
}
-pick_one_preserving_merges () {
- fast_forward=t
- case "$1" in
- -n)
- fast_forward=f
- sha1=$2
- ;;
- *)
- sha1=$1
- ;;
- esac
- sha1=$(git rev-parse $sha1)
-
- if test -f "$DOTEST"/current-commit
+git_sequence_editor () {
+ if test -z "$GIT_SEQUENCE_EDITOR"
then
- if test "$fast_forward" = t
+ GIT_SEQUENCE_EDITOR="$(git config sequence.editor)"
+ if [ -z "$GIT_SEQUENCE_EDITOR" ]
then
- cat "$DOTEST"/current-commit | while read current_commit
- do
- git rev-parse HEAD > "$REWRITTEN"/$current_commit
- done
- rm "$DOTEST"/current-commit ||
- die "Cannot write current commit's replacement sha1"
+ GIT_SEQUENCE_EDITOR="$(git var GIT_EDITOR)" || return $?
fi
fi
- echo $sha1 >> "$DOTEST"/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 $first_parent"
- fi
+ eval "$GIT_SEQUENCE_EDITOR" '"$@"'
+}
- case "$new_parents" in
- ' '*' '*)
- test "a$1" = a-n && die "Refusing to squash a merge: $sha1"
-
- # redo merge
- author_script=$(get_author_ident_from_commit $sha1)
- eval "$author_script"
- msg="$(git cat-file commit $sha1 | sed -e '1,/^$/d')"
- # No point in merging the first parent, that's HEAD
- new_parents=${new_parents# $first_parent}
- if ! GIT_AUTHOR_NAME="$GIT_AUTHOR_NAME" \
- GIT_AUTHOR_EMAIL="$GIT_AUTHOR_EMAIL" \
- GIT_AUTHOR_DATE="$GIT_AUTHOR_DATE" \
- output git merge $STRATEGY -m "$msg" \
- $new_parents
- then
- printf "%s\n" "$msg" > "$GIT_DIR"/MERGE_MSG
- die_with_patch $sha1 "Error redoing merge $sha1"
- fi
- ;;
- *)
- output git cherry-pick "$@" ||
- die_with_patch $sha1 "Could not pick $sha1"
- ;;
- esac
- ;;
- esac
+expand_todo_ids() {
+ git rebase--helper --expand-ids
}
-nth_string () {
- case "$1" in
- *1[0-9]|*[04-9]) echo "$1"th;;
- *1) echo "$1"st;;
- *2) echo "$1"nd;;
- *3) echo "$1"rd;;
- esac
+collapse_todo_ids() {
+ git rebase--helper --shorten-ids
}
-make_squash_message () {
- if test -f "$SQUASH_MSG"; then
- COUNT=$(($(sed -n "s/^# This is [^0-9]*\([1-9][0-9]*\).*/\1/p" \
- < "$SQUASH_MSG" | sed -ne '$p')+1))
- echo "# This is a combination of $COUNT commits."
- sed -e 1d -e '2,/^./{
- /^$/d
- }' <"$SQUASH_MSG"
- else
- COUNT=2
- echo "# This is a combination of two commits."
- echo "# The first commit's message is:"
- echo
- git cat-file commit HEAD | sed -e '1,/^$/d'
- fi
- echo
- echo "# This is the $(nth_string $COUNT) commit message:"
- echo
- git cat-file commit $1 | sed -e '1,/^$/d'
+# 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 $orig_head
}
-peek_next_command () {
- sed -n "1s/ .*$//p" < "$TODO"
+get_missing_commit_check_level () {
+ check_level=$(git config --get rebase.missingCommitsCheck)
+ check_level=${check_level:-ignore}
+ # Don't be case sensitive
+ printf '%s' "$check_level" | tr 'A-Z' 'a-z'
}
-do_next () {
- rm -f "$DOTEST"/message "$DOTEST"/author-script \
- "$DOTEST"/amend || exit
- read command sha1 rest < "$TODO"
- case "$command" in
- '#'*|''|noop)
- mark_action_done
+# 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)
+ exec git rebase--helper ${force_rebase:+--no-ff} $allow_empty_message \
+ --continue
;;
- pick|p)
- comment_for_reflog pick
-
- mark_action_done
- pick_one $sha1 ||
- die_with_patch $sha1 "Could not apply $sha1... $rest"
+ skip)
+ git rerere clear
+ exec git rebase--helper ${force_rebase:+--no-ff} $allow_empty_message \
+ --continue
;;
- edit|e)
- comment_for_reflog edit
-
- mark_action_done
- pick_one $sha1 ||
- die_with_patch $sha1 "Could not apply $sha1... $rest"
- make_patch $sha1
- git rev-parse --verify HEAD > "$DOTEST"/amend
- warn "Stopped at $sha1... $rest"
- warn "You can amend the commit now, with"
- warn
- warn " git commit --amend"
- warn
- warn "Once you are satisfied with your changes, run"
- warn
- warn " git rebase --continue"
- warn
- exit 0
+ edit-todo)
+ git stripspace --strip-comments <"$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
;;
- squash|s)
- comment_for_reflog squash
-
- test -f "$DONE" && has_action "$DONE" ||
- die "Cannot 'squash' without a previous commit"
-
- mark_action_done
- make_squash_message $sha1 > "$MSG"
- failed=f
- author_script=$(get_author_ident_from_commit HEAD)
- output git reset --soft HEAD^
- pick_one -n $sha1 || failed=t
- case "$(peek_next_command)" in
- squash|s)
- USE_OUTPUT=output
- MSG_OPT=-F
- EDIT_OR_FILE="$MSG"
- cp "$MSG" "$SQUASH_MSG"
- ;;
- *)
- USE_OUTPUT=
- MSG_OPT=
- EDIT_OR_FILE=-e
- rm -f "$SQUASH_MSG" || exit
- cp "$MSG" "$GIT_DIR"/SQUASH_MSG
- rm -f "$GIT_DIR"/MERGE_MSG || exit
- ;;
- esac
- echo "$author_script" > "$DOTEST"/author-script
- if test $failed = f
- then
- # This is like --amend, but with a different message
- eval "$author_script"
- GIT_AUTHOR_NAME="$GIT_AUTHOR_NAME" \
- GIT_AUTHOR_EMAIL="$GIT_AUTHOR_EMAIL" \
- GIT_AUTHOR_DATE="$GIT_AUTHOR_DATE" \
- $USE_OUTPUT git commit --no-verify \
- $MSG_OPT "$EDIT_OR_FILE" || failed=t
- fi
- if test $failed = t
- then
- cp "$MSG" "$GIT_DIR"/MERGE_MSG
- warn
- warn "Could not apply $sha1... $rest"
- die_with_patch $sha1 ""
- fi
+ show-current-patch)
+ exec git show REBASE_HEAD --
;;
*)
- warn "Unknown command: $command $sha1 $rest"
- die_with_patch $sha1 "Please fix this in the file $TODO."
+ return 1 # continue
;;
esac
- test -s "$TODO" && return
-
- comment_for_reflog finish &&
- HEADNAME=$(cat "$DOTEST"/head-name) &&
- OLDHEAD=$(cat "$DOTEST"/head) &&
- SHORTONTO=$(git rev-parse --short $(cat "$DOTEST"/onto)) &&
- NEWHEAD=$(git rev-parse HEAD) &&
- case $HEADNAME in
- refs/*)
- message="$GIT_REFLOG_ACTION: $HEADNAME onto $SHORTONTO)" &&
- git update-ref -m "$message" $HEADNAME $NEWHEAD $OLDHEAD &&
- git symbolic-ref HEAD $HEADNAME
- ;;
- esac && {
- test ! -f "$DOTEST"/verbose ||
- git diff-tree --stat $(cat "$DOTEST"/head)..HEAD
- } &&
- rm -rf "$DOTEST" &&
- git gc --auto &&
- warn "Successfully rebased and updated $HEADNAME."
-
- exit
}
-do_rest () {
- while :
- do
- do_next
- done
-}
+setup_reflog_action () {
+ comment_for_reflog start
-# skip picking commits whose parents are unchanged
-skip_unnecessary_picks () {
- fd=3
- while read command sha1 rest
- do
- # fd=3 means we skip the command
- case "$fd,$command,$(git rev-parse --verify --quiet $sha1^)" in
- 3,pick,"$ONTO"*|3,p,"$ONTO"*)
- # pick a commit whose parent is current $ONTO -> skip
- ONTO=$sha1
- ;;
- 3,#*|3,,*)
- # copy comments
- ;;
- *)
- fd=1
- ;;
- esac
- echo "$command${sha1:+ }$sha1${rest:+ }$rest" >&$fd
- done <"$TODO" >"$TODO.new" 3>>"$DONE" &&
- mv -f "$TODO".new "$TODO" ||
- die "Could not skip unnecessary pick commands"
+ if test ! -z "$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
}
-# check if no other options are set
-is_standalone () {
- test $# -eq 2 -a "$2" = '--' &&
- test -z "$ONTO" &&
- test -z "$PRESERVE_MERGES" &&
- test -z "$STRATEGY" &&
- test -z "$VERBOSE"
+init_basic_state () {
+ orig_head=$(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
}
-get_saved_options () {
- test -d "$REWRITTEN" && PRESERVE_MERGES=t
- test -f "$DOTEST"/strategy && STRATEGY="$(cat "$DOTEST"/strategy)"
- test -f "$DOTEST"/verbose && VERBOSE=t
- test -f "$DOTEST"/rebase-root && REBASE_ROOT=t
+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
}
-while test $# != 0
-do
- case "$1" in
- --no-verify)
- OK_TO_SKIP_PRE_REBASE=yes
- ;;
- --verify)
- ;;
- --continue)
- is_standalone "$@" || usage
- get_saved_options
- comment_for_reflog continue
-
- test -d "$DOTEST" || die "No interactive rebase running"
-
- # Sanity check
- git rev-parse --verify HEAD >/dev/null ||
- die "Cannot read HEAD"
- git update-index --ignore-submodules --refresh &&
- git diff-files --quiet --ignore-submodules ||
- die "Working tree is dirty"
-
- # do we have anything to commit?
- if git diff-index --cached --quiet --ignore-submodules HEAD --
- then
- : Nothing to commit -- skip this
- else
- . "$DOTEST"/author-script ||
- die "Cannot find the author identity"
- amend=
- if test -f "$DOTEST"/amend
- then
- amend=$(git rev-parse --verify HEAD)
- test "$amend" = $(cat "$DOTEST"/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
- export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE &&
- git commit --no-verify -F "$DOTEST"/message -e || {
- test -n "$amend" && git reset --soft $amend
- die "Could not commit staged changes."
- }
- fi
+complete_action() {
+ test -s "$todo" || echo noop >> "$todo"
+ test -z "$autosquash" || git rebase--helper --rearrange-squash || exit
+ test -n "$cmd" && git rebase--helper --add-exec-commands "$cmd"
- require_clean_work_tree
- do_rest
- ;;
- --abort)
- is_standalone "$@" || usage
- get_saved_options
- comment_for_reflog abort
+ todocount=$(git stripspace --strip-comments <"$todo" | wc -l)
+ todocount=${todocount##* }
- git rerere clear
- test -d "$DOTEST" || die "No interactive rebase running"
-
- HEADNAME=$(cat "$DOTEST"/head-name)
- HEAD=$(cat "$DOTEST"/head)
- case $HEADNAME in
- refs/*)
- git symbolic-ref HEAD $HEADNAME
- ;;
- esac &&
- output git reset --hard $HEAD &&
- rm -rf "$DOTEST"
- exit
- ;;
- --skip)
- is_standalone "$@" || usage
- get_saved_options
- comment_for_reflog skip
+cat >>"$todo" <<EOF
- git rerere clear
- test -d "$DOTEST" || die "No interactive rebase running"
+$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.
- output git reset --hard && do_rest
- ;;
- -s)
- case "$#,$1" in
- *,*=*)
- STRATEGY="-s "$(expr "z$1" : 'z-[^=]*=\(.*\)') ;;
- 1,*)
- usage ;;
- *)
- STRATEGY="-s $2"
- shift ;;
- esac
- ;;
- -m)
- # we use merge anyway
- ;;
- -v)
- VERBOSE=t
- ;;
- -p)
- PRESERVE_MERGES=t
- ;;
- -i)
- # yeah, we know
- ;;
- --root)
- REBASE_ROOT=t
- ;;
- --onto)
- shift
- ONTO=$(git rev-parse --verify "$1") ||
- die "Does not point to a valid commit: $1"
- ;;
- --)
- shift
- test -z "$REBASE_ROOT" -a $# -ge 1 -a $# -le 2 ||
- test ! -z "$REBASE_ROOT" -a $# -le 1 || usage
- test -d "$DOTEST" &&
- die "Interactive rebase already started"
+ " | git stripspace --comment-lines >>"$todo"
- git var GIT_COMMITTER_IDENT >/dev/null ||
- die "You need to set your committer info first"
+ if test -z "$keep_empty"
+ then
+ printf '%s\n' "$comment_char $(gettext "Note that empty commits are commented out")" >>"$todo"
+ fi
- if test -z "$REBASE_ROOT"
- then
- UPSTREAM_ARG="$1"
- UPSTREAM=$(git rev-parse --verify "$1") || die "Invalid base"
- test -z "$ONTO" && ONTO=$UPSTREAM
- shift
- else
- UPSTREAM=
- UPSTREAM_ARG=--root
- test -z "$ONTO" &&
- die "You must specify --onto when using --root"
- fi
- run_pre_rebase_hook "$UPSTREAM_ARG" "$@"
- comment_for_reflog start
+ has_action "$todo" ||
+ return 2
- require_clean_work_tree
+ cp "$todo" "$todo".backup
+ collapse_todo_ids
+ git_sequence_editor "$todo" ||
+ die_abort "$(gettext "Could not execute editor")"
- if test ! -z "$1"
- then
- output git show-ref --verify --quiet "refs/heads/$1" ||
- die "Invalid branchname: $1"
- output git checkout "$1" ||
- die "Could not checkout $1"
- fi
+ has_action "$todo" ||
+ return 2
- HEAD=$(git rev-parse --verify HEAD) || die "No HEAD?"
- mkdir "$DOTEST" || die "Could not create temporary $DOTEST"
-
- : > "$DOTEST"/interactive || die "Could not mark as interactive"
- git symbolic-ref HEAD > "$DOTEST"/head-name 2> /dev/null ||
- echo "detached HEAD" > "$DOTEST"/head-name
-
- echo $HEAD > "$DOTEST"/head
- case "$REBASE_ROOT" in
- '')
- rm -f "$DOTEST"/rebase-root ;;
- *)
- : >"$DOTEST"/rebase-root ;;
- esac
- echo $ONTO > "$DOTEST"/onto
- test -z "$STRATEGY" || echo "$STRATEGY" > "$DOTEST"/strategy
- test t = "$VERBOSE" && : > "$DOTEST"/verbose
- if test t = "$PRESERVE_MERGES"
- then
- # $REWRITTEN contains files for each commit that is
- # reachable by at least one merge base of $HEAD and
- # $UPSTREAM. They are not necessarily rewritten, but
- # their children might be.
- # This ensures that commits on merged, but otherwise
- # unrelated side branches are left alone. (Think "X"
- # in the man page's example.)
- if test -z "$REBASE_ROOT"
- then
- mkdir "$REWRITTEN" &&
- for c in $(git merge-base --all $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=
- first_after_upstream="$(git rev-list --reverse --first-parent $UPSTREAM..$HEAD | head -n 1)"
- else
- MERGES_OPTION="--no-merges --cherry-pick"
- fi
+ git rebase--helper --check-todo-list || {
+ ret=$?
+ checkout_onto
+ exit $ret
+ }
- SHORTHEAD=$(git rev-parse --short $HEAD)
- SHORTONTO=$(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...$HEAD
- SHORTREVISIONS=$SHORTUPSTREAM..$SHORTHEAD
- else
- REVISIONS=$ONTO...$HEAD
- SHORTREVISIONS=$SHORTHEAD
- fi
- git rev-list $MERGES_OPTION --pretty=oneline --abbrev-commit \
- --abbrev=7 --reverse --left-right --topo-order \
- $REVISIONS | \
- sed -n "s/^>//p" | while read shortsha1 rest
- do
- if test t != "$PRESERVE_MERGES"
- then
- echo "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 -a \( $p != $UPSTREAM -o $sha1 = $first_after_upstream \)
- then
- preserve=f
- fi
- done
- else
- preserve=f
- fi
- if test f = "$preserve"
- then
- touch "$REWRITTEN"/$sha1
- echo "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 $REVISIONS --left-right --cherry-pick | \
- sed -n "s/^>//p" > "$DOTEST"/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"/$rev -a "$(grep "$rev" "$DOTEST"/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)
- grep -v "^[a-z][a-z]* $short" <"$TODO" > "${TODO}2" ; mv "${TODO}2" "$TODO"
- rm "$REWRITTEN"/$rev
- fi
- done
- fi
+ expand_todo_ids
- test -s "$TODO" || echo noop >> "$TODO"
- cat >> "$TODO" << EOF
+ test -n "$force_rebase" ||
+ onto="$(git rebase--helper --skip-unnecessary-picks)" ||
+ die "Could not skip unnecessary pick commands"
-# Rebase $SHORTREVISIONS onto $SHORTONTO
-#
-# Commands:
-# p, pick = use commit
-# e, edit = use commit, but stop for amending
-# s, squash = use commit, but meld into previous commit
-#
-# If you remove a line here THAT COMMIT WILL BE LOST.
-# However, if you remove everything, the rebase will be aborted.
-#
-EOF
+ checkout_onto
+ require_clean_work_tree "rebase"
+ exec git rebase--helper ${force_rebase:+--no-ff} $allow_empty_message \
+ --continue
+}
- has_action "$TODO" ||
- die_abort "Nothing to do"
+git_rebase__interactive () {
+ initiate_action "$action"
+ ret=$?
+ if test $ret = 0; then
+ return 0
+ fi
- cp "$TODO" "$TODO".backup
- git_editor "$TODO" ||
- die "Could not execute editor"
+ setup_reflog_action
+ init_basic_state
- has_action "$TODO" ||
- die_abort "Nothing to do"
+ init_revisions_and_shortrevisions
- test -d "$REWRITTEN" || skip_unnecessary_picks
+ git rebase--helper --make-script ${keep_empty:+--keep-empty} \
+ ${rebase_merges:+--rebase-merges} \
+ ${rebase_cousins:+--rebase-cousins} \
+ $revisions ${restrict_revision+^$restrict_revision} >"$todo" ||
+ die "$(gettext "Could not generate todo list")"
- git update-ref ORIG_HEAD $HEAD
- output git checkout $ONTO && do_rest
- ;;
- esac
- shift
-done
+ complete_action
+}