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
+verify allow pre-rebase hook to run
root rebase all reachable commmits up to the root(s)
autosquash move commits that begin with squash!/fixup! under -i
"
OK_TO_SKIP_PRE_REBASE=
REBASE_ROOT=
AUTOSQUASH=
+test "$(git config --bool rebase.autosquash)" = "true" && AUTOSQUASH=t
NEVER_FF=
-GIT_CHERRY_PICK_HELP=" After resolving the conflicts,
-mark the corrected paths with 'git add <paths>', and
-run 'git rebase --continue'"
+GIT_CHERRY_PICK_HELP="\
+hint: after resolving the conflicts, mark the corrected paths
+hint: with 'git add <paths>' and run 'git rebase --continue'"
export GIT_CHERRY_PICK_HELP
warn () {
- echo "$*" >&2
+ printf '%s\n' "$*" >&2
}
output () {
fi
}
-require_clean_work_tree () {
- # test if working tree is dirty
- git rev-parse --verify HEAD > /dev/null &&
- git update-index --ignore-submodules --refresh &&
- git diff-files --quiet --ignore-submodules &&
- git diff-index --cached --quiet HEAD --ignore-submodules -- ||
- die "Working tree is dirty"
-}
ORIG_REFLOG_ACTION="$GIT_REFLOG_ACTION"
then
if test "$fast_forward" = t
then
- cat "$DOTEST"/current-commit | while read current_commit
+ while read current_commit
do
git rev-parse HEAD > "$REWRITTEN"/$current_commit
- done
+ done <"$DOTEST"/current-commit
rm "$DOTEST"/current-commit ||
die "Cannot write current commit's replacement sha1"
fi
echo "$oldsha1" >> "$REWRITTEN_PENDING"
case "$(peek_next_command)" in
- squash|s|fixup|f)
+ squash|s|fixup|f)
;;
- *)
+ *)
flush_rewritten_pending
;;
esac
do_next () {
rm -f "$MSG" "$AUTHOR_SCRIPT" "$AMEND" || exit
- read command sha1 rest < "$TODO"
+ read -r command sha1 rest < "$TODO"
case "$command" in
'#'*|''|noop)
mark_action_done
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 $sha1 here.
+ git rev-parse --verify HEAD > "$DOTEST"/stopped-sha
+ ${SHELL:-@SHELL_PATH@} -c "$rest" # Actual execution
+ status=$?
+ if test "$status" -ne 0
+ then
+ warn "Execution failed: $rest"
+ warn "You can fix the problem, and then run"
+ warn
+ warn " git rebase --continue"
+ warn
+ exit "$status"
+ fi
+ # Run in subshell because require_clean_work_tree can die.
+ if ! (require_clean_work_tree "rebase")
+ then
+ 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
# skip picking commits whose parents are unchanged
skip_unnecessary_picks () {
fd=3
- while read command sha1 rest
+ while read -r command rest
do
# fd=3 means we skip the command
- case "$fd,$command,$(git rev-parse --verify --quiet $sha1^)" in
- 3,pick,"$ONTO"*|3,p,"$ONTO"*)
+ case "$fd,$command" in
+ 3,pick|3,p)
# pick a commit whose parent is current $ONTO -> skip
- ONTO=$sha1
+ sha1=${rest%% *}
+ case "$(git rev-parse --verify --quiet "$sha1"^)" in
+ "$ONTO"*)
+ ONTO=$sha1
+ ;;
+ *)
+ fd=1
+ ;;
+ esac
;;
- 3,#*|3,,*)
+ 3,#*|3,)
# copy comments
;;
*)
fd=1
;;
esac
- echo "$command${sha1:+ }$sha1${rest:+ }$rest" >&$fd
+ printf '%s\n' "$command${rest:+ }$rest" >&$fd
done <"$TODO" >"$TODO.new" 3>>"$DONE" &&
mv -f "$TODO".new "$TODO" &&
case "$(peek_next_command)" in
# comes immediately after the former, and change "pick" to
# "fixup"/"squash".
rearrange_squash () {
- sed -n -e 's/^pick \([0-9a-f]*\) \(squash\)! /\1 \2 /p' \
- -e 's/^pick \([0-9a-f]*\) \(fixup\)! /\1 \2 /p' \
- "$1" >"$1.sq"
+ # extract fixup!/squash! lines and resolve any referenced sha1's
+ while read -r pick sha1 message
+ do
+ case "$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 pick sha1 message
+ while read -r pick sha1 message
do
case " $used" in
*" $sha1 "*) continue ;;
esac
- echo "$pick $sha1 $message"
- while read squash action msg
+ printf '%s\n' "$pick $sha1 $message"
+ used="$used$sha1 "
+ while read -r squash action msg
do
- case "$message" in
- "$msg"*)
- echo "$action $squash $action! $msg"
- used="$used$squash "
- ;;
+ case " $used" in
+ *" $squash "*) continue ;;
esac
+ emit=0
+ case "$action" in
+ +*)
+ action="${action#+}"
+ # full sha1 prefix test
+ case "$msg" in "$sha1"*) emit=1;; esac ;;
+ *)
+ # message prefix test
+ case "$message" in "$msg"*) emit=1;; esac ;;
+ esac
+ if test $emit = 1; then
+ printf '%s\n' "$action $squash $action! $msg"
+ used="$used$squash "
+ fi
done <"$1.sq"
done >"$1.rearranged" <"$1"
cat "$1.rearranged" >"$1"
OK_TO_SKIP_PRE_REBASE=yes
;;
--verify)
+ OK_TO_SKIP_PRE_REBASE=
;;
--continue)
is_standalone "$@" || usage
record_in_rewritten "$(cat "$DOTEST"/stopped-sha)"
- require_clean_work_tree
+ require_clean_work_tree "rebase"
do_rest
;;
--abort)
--autosquash)
AUTOSQUASH=t
;;
+ --no-autosquash)
+ AUTOSQUASH=
+ ;;
--onto)
shift
ONTO=$(parse_onto "$1") ||
;;
--)
shift
- test -z "$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 var GIT_COMMITTER_IDENT >/dev/null ||
- die "You need to set your committer info first"
-
- 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
-
- require_clean_work_tree
-
- if test ! -z "$1"
- then
- output git checkout "$1" ||
- die "Could not checkout $1"
- fi
+ break
+ ;;
+ esac
+ shift
+done
- HEAD=$(git rev-parse --verify HEAD) || die "No HEAD?"
- mkdir "$DOTEST" || die "Could not create temporary $DOTEST"
+test -z "$REBASE_ROOT" -a $# -ge 1 -a $# -le 2 ||
+test ! -z "$REBASE_ROOT" -a $# -le 1 || usage
+test -d "$DOTEST" &&
+ die "Interactive rebase already started"
- : > "$DOTEST"/interactive || die "Could not mark as interactive"
- git symbolic-ref HEAD > "$DOTEST"/head-name 2> /dev/null ||
- echo "detached HEAD" > "$DOTEST"/head-name
+git var GIT_COMMITTER_IDENT >/dev/null ||
+ die "You need to set your committer info first"
- 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
- 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
-
- 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 \
- $REVISIONS | \
- sed -n "s/^>//p" | while read shortsha1 rest
+if test -z "$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
+
+require_clean_work_tree "rebase" "Please commit or stash them."
+
+if test ! -z "$1"
+then
+ output git checkout "$1" -- ||
+ die "Could not checkout $1"
+fi
+
+HEAD=$(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
+ if test -z "$REBASE_ROOT"
+ then
+ mkdir "$REWRITTEN" &&
+ for c in $(git merge-base --all $HEAD $UPSTREAM)
do
- if test t != "$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 \( $p != $ONTO -o $sha1 = $first_after_upstream \)
- then
- preserve=f
- fi
- done
- else
- preserve=f
- fi
- if test f = "$preserve"
- then
- touch "$REWRITTEN"/$sha1
- echo "pick $shortsha1 $rest" >> "$TODO"
- fi
- fi
+ echo $ONTO > "$REWRITTEN"/$c ||
+ die "Could not init rewritten commits"
done
-
- # Watch for commits that been dropped by --cherry-pick
- if test t = "$PRESERVE_MERGES"
+ 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
+
+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 \
+ $REVISIONS | \
+ sed -n "s/^>//p" |
+while read -r shortsha1 rest
+do
+ if test t != "$PRESERVE_MERGES"
+ then
+ printf '%s\n' "pick $shortsha1 $rest" >> "$TODO"
+ else
+ sha1=$(git rev-parse $shortsha1)
+ if test -z "$REBASE_ROOT"
then
- 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
+ preserve=t
+ for p in $(git rev-list --parents -1 $sha1 | cut -d' ' -s -f2-)
do
- if test -f "$REWRITTEN"/$rev -a "$(sane_grep "$rev" "$DOTEST"/not-cherry-picks)" = ""
+ if test -f "$REWRITTEN"/$p -a \( $p != $ONTO -o $sha1 = $first_after_upstream \)
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"/$rev
+ preserve=f
fi
done
+ else
+ preserve=f
+ fi
+ if test f = "$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 $REVISIONS --left-right --cherry-pick | \
+ sed -n "s/^>//p" > "$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"/$rev -a "$(sane_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)
+ 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
+test -s "$TODO" || echo noop >> "$TODO"
+test -n "$AUTOSQUASH" && rearrange_squash "$TODO"
+cat >> "$TODO" << EOF
# Rebase $SHORTREVISIONS onto $SHORTONTO
#
# e, edit = use commit, but stop for amending
# s, squash = use commit, but meld into previous commit
# f, fixup = like "squash", but discard this commit's log message
+# x, exec = run command (the rest of the line) using shell
#
# If you remove a line here THAT COMMIT WILL BE LOST.
# However, if you remove everything, the rebase will be aborted.
#
EOF
- has_action "$TODO" ||
- die_abort "Nothing to do"
+has_action "$TODO" ||
+ die_abort "Nothing to do"
- cp "$TODO" "$TODO".backup
- git_editor "$TODO" ||
- die_abort "Could not execute editor"
+cp "$TODO" "$TODO".backup
+git_editor "$TODO" ||
+ die_abort "Could not execute editor"
- has_action "$TODO" ||
- die_abort "Nothing to do"
+has_action "$TODO" ||
+ die_abort "Nothing to do"
- test -d "$REWRITTEN" || test -n "$NEVER_FF" || skip_unnecessary_picks
+test -d "$REWRITTEN" || test -n "$NEVER_FF" || skip_unnecessary_picks
- output git checkout $ONTO || die_abort "could not detach HEAD"
- git update-ref ORIG_HEAD $HEAD
- do_rest
- ;;
- esac
- shift
-done
+output git checkout $ONTO || die_abort "could not detach HEAD"
+git update-ref ORIG_HEAD $HEAD
+do_rest