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index 59c148ff6d477c5c40258d3adc5c95f5c775ccc6..9b1e899e279e63cf3b952d910974ebf619d63bee 100755 (executable)
continue continue rebasing process
abort abort rebasing process and restore original branch
skip skip current patch and continue rebasing process
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
"
. git-sh-setup
MSG="$DOTEST"/message
SQUASH_MSG="$DOTEST"/message-squash
REWRITTEN="$DOTEST"/rewritten
MSG="$DOTEST"/message
SQUASH_MSG="$DOTEST"/message-squash
REWRITTEN="$DOTEST"/rewritten
+DROPPED="$DOTEST"/dropped
PRESERVE_MERGES=
STRATEGY=
ONTO=
VERBOSE=
PRESERVE_MERGES=
STRATEGY=
ONTO=
VERBOSE=
+OK_TO_SKIP_PRE_REBASE=
+REBASE_ROOT=
GIT_CHERRY_PICK_HELP=" After resolving the conflicts,
mark the corrected paths with 'git add <paths>', and
GIT_CHERRY_PICK_HELP=" After resolving the conflicts,
mark the corrected paths with 'git add <paths>', and
}
run_pre_rebase_hook () {
}
run_pre_rebase_hook () {
- if test -x "$GIT_DIR/hooks/pre-rebase"
+ 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."
then
"$GIT_DIR/hooks/pre-rebase" ${1+"$@"} || {
echo >&2 "The pre-rebase hook refused to rebase."
}
make_patch () {
}
make_patch () {
- parent_sha1=$(git rev-parse --verify "$1"^) ||
- die "Cannot get patch for $1^"
- git diff-tree -p "$parent_sha1".."$1" > "$DOTEST"/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 ||
test -f "$DOTEST"/message ||
git cat-file commit "$1" | sed "1,/^$/d" > "$DOTEST"/message
test -f "$DOTEST"/author-script ||
output git rev-parse --verify $sha1 || die "Invalid commit name: $sha1"
test -d "$REWRITTEN" &&
pick_one_preserving_merges "$@" && return
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)
parent_sha1=$(git rev-parse --verify $sha1^) ||
die "Could not get the parent of $sha1"
current_sha1=$(git rev-parse --verify HEAD)
if test -f "$DOTEST"/current-commit
then
if test -f "$DOTEST"/current-commit
then
- current_commit=$(cat "$DOTEST"/current-commit) &&
- git rev-parse HEAD > "$REWRITTEN"/$current_commit &&
- rm "$DOTEST"/current-commit ||
- die "Cannot write current commit's replacement sha1"
+ if test "$fast_forward" = t
+ 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"
+ fi
fi
fi
- echo $sha1 > "$DOTEST"/current-commit
+ echo $sha1 >> "$DOTEST"/current-commit
# rewrite parents; if none were rewritten, we can fast-forward.
new_parents=
# rewrite parents; if none were rewritten, we can fast-forward.
new_parents=
- for p in $(git rev-list --parents -1 $sha1 | cut -d' ' -f2-)
+ pend=" $(git rev-list --parents -1 $sha1 | cut -d' ' -s -f2-)"
+ if test "$pend" = " "
+ then
+ pend=" root"
+ fi
+ while [ "$pend" != "" ]
do
do
+ p=$(expr "$pend" : ' \([^ ]*\)')
+ pend="${pend# $p}"
+
if test -f "$REWRITTEN"/$p
then
new_p=$(cat "$REWRITTEN"/$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*)
test $p != $new_p && fast_forward=f
case "$new_parents" in
*$new_p*)
;;
esac
else
;;
esac
else
- new_parents="$new_parents $p"
+ if test -f "$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
fi
done
case $fast_forward in
die "Cannot fast forward to $sha1"
;;
f)
die "Cannot fast forward to $sha1"
;;
f)
- test "a$1" = a-n && die "Refusing to squash a merge: $sha1"
-
first_parent=$(expr "$new_parents" : ' \([^ ]*\)')
first_parent=$(expr "$new_parents" : ' \([^ ]*\)')
- # detach HEAD to current parent
- output git checkout $first_parent 2> /dev/null ||
- die "Cannot move HEAD to $first_parent"
+
+ 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
' '*' '*)
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"
# redo merge
author_script=$(get_author_ident_from_commit $sha1)
eval "$author_script"
output git merge $STRATEGY -m "$msg" \
$new_parents
then
output git merge $STRATEGY -m "$msg" \
$new_parents
then
- git rerere
printf "%s\n" "$msg" > "$GIT_DIR"/MERGE_MSG
printf "%s\n" "$msg" > "$GIT_DIR"/MERGE_MSG
- die Error redoing merge $sha1
+ die_with_patch $sha1 "Error redoing merge $sha1"
fi
;;
*)
fi
;;
*)
pick_one -n $sha1 || failed=t
case "$(peek_next_command)" in
squash|s)
pick_one -n $sha1 || failed=t
case "$(peek_next_command)" in
squash|s)
- EDIT_COMMIT=
USE_OUTPUT=output
MSG_OPT=-F
USE_OUTPUT=output
MSG_OPT=-F
- MSG_FILE="$MSG"
+ EDIT_OR_FILE="$MSG"
cp "$MSG" "$SQUASH_MSG"
;;
*)
cp "$MSG" "$SQUASH_MSG"
;;
*)
- EDIT_COMMIT=-e
USE_OUTPUT=
MSG_OPT=
USE_OUTPUT=
MSG_OPT=
- MSG_FILE=
+ EDIT_OR_FILE=-e
rm -f "$SQUASH_MSG" || exit
cp "$MSG" "$GIT_DIR"/SQUASH_MSG
rm -f "$GIT_DIR"/MERGE_MSG || exit
rm -f "$SQUASH_MSG" || exit
cp "$MSG" "$GIT_DIR"/SQUASH_MSG
rm -f "$GIT_DIR"/MERGE_MSG || exit
GIT_AUTHOR_NAME="$GIT_AUTHOR_NAME" \
GIT_AUTHOR_EMAIL="$GIT_AUTHOR_EMAIL" \
GIT_AUTHOR_DATE="$GIT_AUTHOR_DATE" \
GIT_AUTHOR_NAME="$GIT_AUTHOR_NAME" \
GIT_AUTHOR_EMAIL="$GIT_AUTHOR_EMAIL" \
GIT_AUTHOR_DATE="$GIT_AUTHOR_DATE" \
- $USE_OUTPUT git commit --no-verify $MSG_OPT "$MSG_FILE" $EDIT_COMMIT || failed=t
+ $USE_OUTPUT git commit --no-verify \
+ $MSG_OPT "$EDIT_OR_FILE" || failed=t
fi
if test $failed = t
then
fi
if test $failed = t
then
;;
*)
warn "Unknown command: $command $sha1 $rest"
;;
*)
warn "Unknown command: $command $sha1 $rest"
- die_with_patch $sha1 "Please fix this in the file $TODO."
+ if git rev-parse --verify -q "$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
;;
esac
test -s "$TODO" && return
HEADNAME=$(cat "$DOTEST"/head-name) &&
OLDHEAD=$(cat "$DOTEST"/head) &&
SHORTONTO=$(git rev-parse --short $(cat "$DOTEST"/onto)) &&
HEADNAME=$(cat "$DOTEST"/head-name) &&
OLDHEAD=$(cat "$DOTEST"/head) &&
SHORTONTO=$(git rev-parse --short $(cat "$DOTEST"/onto)) &&
- if test -d "$REWRITTEN"
- then
- test -f "$DOTEST"/current-commit &&
- current_commit=$(cat "$DOTEST"/current-commit) &&
- git rev-parse HEAD > "$REWRITTEN"/$current_commit
- if test -f "$REWRITTEN"/$OLDHEAD
- then
- NEWHEAD=$(cat "$REWRITTEN"/$OLDHEAD)
- else
- NEWHEAD=$OLDHEAD
- fi
- else
- NEWHEAD=$(git rev-parse HEAD)
- fi &&
+ NEWHEAD=$(git rev-parse HEAD) &&
case $HEADNAME in
refs/*)
case $HEADNAME in
refs/*)
- message="$GIT_REFLOG_ACTION: $HEADNAME onto $SHORTONTO)" &&
+ message="$GIT_REFLOG_ACTION: $HEADNAME onto $SHORTONTO" &&
git update-ref -m "$message" $HEADNAME $NEWHEAD $OLDHEAD &&
git symbolic-ref HEAD $HEADNAME
;;
git update-ref -m "$message" $HEADNAME $NEWHEAD $OLDHEAD &&
git symbolic-ref HEAD $HEADNAME
;;
done
}
done
}
+# skip picking commits whose parents are unchanged
+skip_unnecessary_picks () {
+ fd=3
+ while read command sha1 rest
+ do
+ # fd=3 means we skip the command
+ case "$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"
+}
+
# check if no other options are set
is_standalone () {
test $# -eq 2 -a "$2" = '--' &&
# check if no other options are set
is_standalone () {
test $# -eq 2 -a "$2" = '--' &&
test -d "$REWRITTEN" && PRESERVE_MERGES=t
test -f "$DOTEST"/strategy && STRATEGY="$(cat "$DOTEST"/strategy)"
test -f "$DOTEST"/verbose && VERBOSE=t
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
}
while test $# != 0
do
case "$1" in
}
while test $# != 0
do
case "$1" in
+ --no-verify)
+ OK_TO_SKIP_PRE_REBASE=yes
+ ;;
+ --verify)
+ ;;
--continue)
is_standalone "$@" || usage
get_saved_options
--continue)
is_standalone "$@" || usage
get_saved_options
-i)
# yeah, we know
;;
-i)
# yeah, we know
;;
+ --root)
+ REBASE_ROOT=t
+ ;;
--onto)
shift
ONTO=$(git rev-parse --verify "$1") ||
--onto)
shift
ONTO=$(git rev-parse --verify "$1") ||
;;
--)
shift
;;
--)
shift
- run_pre_rebase_hook ${1+"$@"}
- test $# -eq 1 -o $# -eq 2 || usage
+ test -z "$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"
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
comment_for_reflog start
require_clean_work_tree
- UPSTREAM=$(git rev-parse --verify "$1") || die "Invalid base"
- test -z "$ONTO" && ONTO=$UPSTREAM
-
- if test ! -z "$2"
+ if test ! -z "$1"
then
then
- output git show-ref --verify --quiet "refs/heads/$2" ||
- die "Invalid branchname: $2"
- output git checkout "$2" ||
- die "Could not checkout $2"
+ output git show-ref --verify --quiet "refs/heads/$1" ||
+ die "Invalid branchname: $1"
+ output git checkout "$1" ||
+ die "Could not checkout $1"
fi
HEAD=$(git rev-parse --verify HEAD) || die "No HEAD?"
fi
HEAD=$(git rev-parse --verify HEAD) || die "No HEAD?"
echo "detached HEAD" > "$DOTEST"/head-name
echo $HEAD > "$DOTEST"/head
echo "detached HEAD" > "$DOTEST"/head-name
echo $HEAD > "$DOTEST"/head
- echo $UPSTREAM > "$DOTEST"/upstream
+ 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
echo $ONTO > "$DOTEST"/onto
test -z "$STRATEGY" || echo "$STRATEGY" > "$DOTEST"/strategy
test t = "$VERBOSE" && : > "$DOTEST"/verbose
# This ensures that commits on merged, but otherwise
# unrelated side branches are left alone. (Think "X"
# in the man page's example.)
# This ensures that commits on merged, but otherwise
# unrelated side branches are left alone. (Think "X"
# in the man page's example.)
- mkdir "$REWRITTEN" &&
- for c in $(git merge-base --all $HEAD $UPSTREAM)
- do
- echo $ONTO > "$REWRITTEN"/$c ||
+ if test -z "$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"
die "Could not init rewritten commits"
- done
+ 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=
MERGES_OPTION=
+ first_after_upstream="$(git rev-list --reverse --first-parent $UPSTREAM..$HEAD | head -n 1)"
else
else
- MERGES_OPTION=--no-merges
+ MERGES_OPTION="--no-merges --cherry-pick"
fi
fi
- SHORTUPSTREAM=$(git rev-parse --short $UPSTREAM)
SHORTHEAD=$(git rev-parse --short $HEAD)
SHORTONTO=$(git rev-parse --short $ONTO)
SHORTHEAD=$(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 \
git rev-list $MERGES_OPTION --pretty=oneline --abbrev-commit \
- --abbrev=7 --reverse --left-right --cherry-pick \
- $UPSTREAM...$HEAD | \
- sed -n "s/^>/pick /p" > "$TODO"
+ --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 \( $p != $ONTO -o $sha1 = $first_after_upstream \)
+ then
+ preserve=f
+ fi
+ done
+ else
+ preserve=f
+ fi
+ if test f = "$preserve"
+ then
+ touch "$REWRITTEN"/$sha1
+ echo "pick $shortsha1 $rest" >> "$TODO"
+ fi
+ fi
+ 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"/$rev
+ fi
+ done
+ fi
+
test -s "$TODO" || echo noop >> "$TODO"
cat >> "$TODO" << EOF
test -s "$TODO" || echo noop >> "$TODO"
cat >> "$TODO" << EOF
-# Rebase $SHORTUPSTREAM..$SHORTHEAD onto $SHORTONTO
+# Rebase $SHORTREVISIONS onto $SHORTONTO
#
# Commands:
# p, pick = use commit
#
# Commands:
# p, pick = use commit
has_action "$TODO" ||
die_abort "Nothing to do"
has_action "$TODO" ||
die_abort "Nothing to do"
+ test -d "$REWRITTEN" || skip_unnecessary_picks
+
git update-ref ORIG_HEAD $HEAD
output git checkout $ONTO && do_rest
;;
git update-ref ORIG_HEAD $HEAD
output git checkout $ONTO && do_rest
;;