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-rwxr-xr-xgit-rebase.sh297
1 files changed, 204 insertions, 93 deletions
diff --git a/git-rebase.sh b/git-rebase.sh
index 00ca7b99fe..55da9db818 100755
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -3,46 +3,27 @@
# Copyright (c) 2005 Junio C Hamano.
#
-USAGE='[--interactive | -i] [-v] [--force-rebase | -f] [--no-ff] [--onto <newbase>] [<upstream>|--root] [<branch>] [--quiet | -q]'
-LONG_USAGE='git-rebase replaces <branch> with a new branch of the
-same name. When the --onto option is provided the new branch starts
-out with a HEAD equal to <newbase>, otherwise it is equal to <upstream>
-It then attempts to create a new commit for each commit from the original
-<branch> that does not exist in the <upstream> branch.
-
-It is possible that a merge failure will prevent this process from being
-completely automatic. You will have to resolve any such merge failure
-and run git rebase --continue. Another option is to bypass the commit
-that caused the merge failure with git rebase --skip. To check out the
-original <branch> and remove the .git/rebase-apply working files, use the
-command git rebase --abort instead.
-
-Note that if <branch> is not specified on the command line, the
-currently checked out branch is used.
-
-Example: git-rebase master~1 topic
-
- A---B---C topic A'\''--B'\''--C'\'' topic
- / --> /
- D---E---F---G master D---E---F---G master
-'
-
SUBDIRECTORY_OK=Yes
OPTIONS_KEEPDASHDASH=
+OPTIONS_STUCKLONG=t
OPTIONS_SPEC="\
-git rebase [-i] [options] [--onto <newbase>] [<upstream>] [<branch>]
-git rebase [-i] [options] --onto <newbase> --root [<branch>]
-git-rebase [-i] --continue | --abort | --skip
+git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] [<upstream>] [<branch>]
+git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] --root [<branch>]
+git-rebase --continue | --abort | --skip | --edit-todo
--
Available options are
v,verbose! display a diffstat of what changed upstream
q,quiet! be quiet. implies --no-stat
+autostash! automatically stash/stash pop before and after
+fork-point use 'merge-base --fork-point' to refine 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
no-ff! cherry-pick all commits, even if unchanged
m,merge! use merging strategies to rebase
i,interactive! let the user edit the list of commits to rebase
+x,exec=! add exec lines after each commit of the editable list
+k,keep-empty preserve empty commits during rebase
f,force-rebase! force rebase even if branch is up to date
X,strategy-option=! pass the argument through to the merge strategy
stat! display a diffstat of what changed upstream
@@ -56,12 +37,15 @@ ignore-date! passed to 'git am'
whitespace=! passed to 'git apply'
ignore-whitespace! passed to 'git apply'
C=! passed to 'git apply'
+S,gpg-sign? GPG-sign commits
Actions:
continue! continue
abort! abort and check out the original branch
skip! skip current patch and continue
+edit-todo! edit the todo list during an interactive rebase
"
. git-sh-setup
+. git-sh-i18n
set_reflog_action rebase
require_work_tree_exists
cd_to_toplevel
@@ -70,11 +54,13 @@ LF='
'
ok_to_skip_pre_rebase=
resolvemsg="
-When you have resolved this problem run \"git rebase --continue\".
-If you would prefer to skip this patch, instead run \"git rebase --skip\".
-To check out the original branch and stop rebasing run \"git rebase --abort\".
+$(gettext 'When you have resolved this problem, run "git rebase --continue".
+If you prefer to skip this patch, run "git rebase --skip" instead.
+To check out the original branch and stop rebasing, run "git rebase --abort".')
"
unset onto
+unset restrict_revision
+cmd=
strategy=
strategy_opts=
do_merge=
@@ -83,6 +69,8 @@ apply_dir="$GIT_DIR"/rebase-apply
verbose=
diffstat=
test "$(git config --bool rebase.stat)" = true && diffstat=t
+autostash="$(git config --bool rebase.autostash || echo false)"
+fork_point=auto
git_am_opt=
rebase_root=
force_rebase=
@@ -97,9 +85,13 @@ state_dir=
action=
preserve_merges=
autosquash=
+keep_empty=
test "$(git config --bool rebase.autosquash)" = "true" && autosquash=t
+gpg_sign_opt=
read_basic_state () {
+ test -f "$state_dir/head-name" &&
+ test -f "$state_dir/onto" &&
head_name=$(cat "$state_dir"/head-name) &&
onto=$(cat "$state_dir"/onto) &&
# We always write to orig-head, but interactive rebase used to write to
@@ -118,6 +110,8 @@ read_basic_state () {
strategy_opts="$(cat "$state_dir"/strategy_opts)"
test -f "$state_dir"/allow_rerere_autoupdate &&
allow_rerere_autoupdate="$(cat "$state_dir"/allow_rerere_autoupdate)"
+ test -f "$state_dir"/gpg_sign_opt &&
+ gpg_sign_opt="$(cat "$state_dir"/gpg_sign_opt)"
}
write_basic_state () {
@@ -131,6 +125,7 @@ write_basic_state () {
"$state_dir"/strategy_opts
test -n "$allow_rerere_autoupdate" && echo "$allow_rerere_autoupdate" > \
"$state_dir"/allow_rerere_autoupdate
+ test -n "$gpg_sign_opt" && echo "$gpg_sign_opt" > "$state_dir"/gpg_sign_opt
}
output () {
@@ -156,17 +151,53 @@ move_to_original_branch () {
git symbolic-ref \
-m "rebase finished: returning to $head_name" \
HEAD $head_name ||
- die "Could not move back to $head_name"
+ die "$(gettext "Could not move back to $head_name")"
;;
esac
}
+apply_autostash () {
+ if test -f "$state_dir/autostash"
+ then
+ stash_sha1=$(cat "$state_dir/autostash")
+ if git stash apply $stash_sha1 2>&1 >/dev/null
+ then
+ echo "$(gettext 'Applied autostash.')"
+ else
+ git stash store -m "autostash" -q $stash_sha1 ||
+ die "$(eval_gettext "Cannot store \$stash_sha1")"
+ gettext 'Applying autostash resulted in conflicts.
+Your changes are safe in the stash.
+You can run "git stash pop" or "git stash drop" at any time.
+'
+ fi
+ fi
+}
+
+finish_rebase () {
+ apply_autostash &&
+ git gc --auto &&
+ rm -rf "$state_dir"
+}
+
run_specific_rebase () {
if [ "$interactive_rebase" = implied ]; then
GIT_EDITOR=:
export GIT_EDITOR
+ autosquash=
fi
. git-rebase--$type
+ ret=$?
+ if test $ret -eq 0
+ then
+ finish_rebase
+ elif test $ret -eq 2 # special exit status for rebase -i
+ then
+ apply_autostash &&
+ rm -rf "$state_dir" &&
+ die "Nothing to do"
+ fi
+ exit $ret
}
run_pre_rebase_hook () {
@@ -174,12 +205,12 @@ run_pre_rebase_hook () {
test -x "$GIT_DIR/hooks/pre-rebase"
then
"$GIT_DIR/hooks/pre-rebase" ${1+"$@"} ||
- die "The pre-rebase hook refused to rebase."
+ die "$(gettext "The pre-rebase hook refused to rebase.")"
fi
}
test -f "$apply_dir"/applying &&
- die 'It looks like git-am is in progress. Cannot rebase.'
+ die "$(gettext "It looks like git-am is in progress. Cannot rebase.")"
if test -d "$apply_dir"
then
@@ -208,19 +239,23 @@ do
--verify)
ok_to_skip_pre_rebase=
;;
- --continue|--skip|--abort)
+ --continue|--skip|--abort|--edit-todo)
test $total_argc -eq 2 || usage
action=${1##--}
;;
- --onto)
- test 2 -le "$#" || usage
- onto="$2"
- shift
+ --onto=*)
+ onto="${1#--onto=}"
;;
- -i)
+ --exec=*)
+ cmd="${cmd}exec ${1#--exec=}${LF}"
+ ;;
+ --interactive)
interactive_rebase=explicit
;;
- -p)
+ --keep-empty)
+ keep_empty=yes
+ ;;
+ --preserve-merges)
preserve_merges=t
test -z "$interactive_rebase" && interactive_rebase=implied
;;
@@ -230,41 +265,47 @@ do
--no-autosquash)
autosquash=
;;
- -M|-m)
+ --fork-point)
+ fork_point=t
+ ;;
+ --no-fork-point)
+ fork_point=
+ ;;
+ --merge)
do_merge=t
;;
- -X)
- shift
- strategy_opts="$strategy_opts $(git rev-parse --sq-quote "--$1")"
+ --strategy-option=*)
+ strategy_opts="$strategy_opts $(git rev-parse --sq-quote "--${1#--strategy-option=}")"
do_merge=t
test -z "$strategy" && strategy=recursive
;;
- -s)
- shift
- strategy="$1"
+ --strategy=*)
+ strategy="${1#--strategy=}"
do_merge=t
;;
- -n)
+ --no-stat)
diffstat=
;;
--stat)
diffstat=t
;;
- -v)
+ --autostash)
+ autostash=true
+ ;;
+ --verbose)
verbose=t
diffstat=t
GIT_QUIET=
;;
- -q)
+ --quiet)
GIT_QUIET=t
git_am_opt="$git_am_opt -q"
verbose=
diffstat=
;;
- --whitespace)
- shift
- git_am_opt="$git_am_opt --whitespace=$1"
- case "$1" in
+ --whitespace=*)
+ git_am_opt="$git_am_opt --whitespace=${1#--whitespace=}"
+ case "${1#--whitespace=}" in
fix|strip)
force_rebase=t
;;
@@ -277,19 +318,24 @@ do
git_am_opt="$git_am_opt $1"
force_rebase=t
;;
- -C)
- shift
- git_am_opt="$git_am_opt -C$1"
+ -C*)
+ git_am_opt="$git_am_opt $1"
;;
--root)
rebase_root=t
;;
- -f|--no-ff)
+ --force-rebase|--no-ff)
force_rebase=t
;;
--rerere-autoupdate|--no-rerere-autoupdate)
allow_rerere_autoupdate="$1"
;;
+ --gpg-sign)
+ gpg_sign_opt=-S
+ ;;
+ --gpg-sign=*)
+ gpg_sign_opt="-S${1#--gpg-sign=}"
+ ;;
--)
shift
break
@@ -299,9 +345,15 @@ do
done
test $# -gt 2 && usage
+if test -n "$cmd" &&
+ test "$interactive_rebase" != explicit
+then
+ die "$(gettext "The --exec option must be used with the --interactive option")"
+fi
+
if test -n "$action"
then
- test -z "$in_progress" && die "No rebase in progress?"
+ test -z "$in_progress" && die "$(gettext "No rebase in progress?")"
# Only interactive rebase uses detailed reflog messages
if test "$type" = interactive && test "$GIT_REFLOG_ACTION" = rebase
then
@@ -310,15 +362,20 @@ then
fi
fi
+if test "$action" = "edit-todo" && test "$type" != "interactive"
+then
+ die "$(gettext "The --edit-todo action can only be used during interactive rebase.")"
+fi
+
case "$action" in
continue)
# Sanity check
git rev-parse --verify HEAD >/dev/null ||
- die "Cannot read HEAD"
+ die "$(gettext "Cannot read HEAD")"
git update-index --ignore-submodules --refresh &&
git diff-files --quiet --ignore-submodules || {
- echo "You must edit all merge conflicts and then"
- echo "mark them as resolved using git add"
+ echo "$(gettext "You must edit all merge conflicts and then
+mark them as resolved using git add")"
exit 1
}
read_basic_state
@@ -335,27 +392,38 @@ abort)
case "$head_name" in
refs/*)
git symbolic-ref -m "rebase: aborting" HEAD $head_name ||
- die "Could not move back to $head_name"
+ die "$(eval_gettext "Could not move back to \$head_name")"
;;
esac
output git reset --hard $orig_head
- rm -r "$state_dir"
+ finish_rebase
exit
;;
+edit-todo)
+ run_specific_rebase
+ ;;
esac
# Make sure no rebase is in progress
if test -n "$in_progress"
then
- die '
-It seems that there is already a '"${state_dir##*/}"' directory, and
+ state_dir_base=${state_dir##*/}
+ cmd_live_rebase="git rebase (--continue | --abort | --skip)"
+ cmd_clear_stale_rebase="rm -fr \"$state_dir\""
+ die "
+$(eval_gettext 'It seems that there is already a $state_dir_base directory, and
I wonder if you are in the middle of another rebase. If that is the
case, please try
- git rebase (--continue | --abort | --skip)
+ $cmd_live_rebase
If that is not the case, please
- rm -fr '"$state_dir"'
+ $cmd_clear_stale_rebase
and run me again. I am stopping in case you still have something
-valuable there.'
+valuable there.')"
+fi
+
+if test -n "$rebase_root" && test -z "$onto"
+then
+ test -z "$interactive_rebase" && interactive_rebase=implied
fi
if test -n "$interactive_rebase"
@@ -380,20 +448,32 @@ then
then
. git-parse-remote
error_on_missing_default_upstream "rebase" "rebase" \
- "against" "git rebase <upstream branch>"
+ "against" "git rebase <branch>"
fi
+
+ test "$fork_point" = auto && fork_point=t
;;
*) upstream_name="$1"
+ if test "$upstream_name" = "-"
+ then
+ upstream_name="@{-1}"
+ fi
shift
;;
esac
- upstream=`git rev-parse --verify "${upstream_name}^0"` ||
- die "invalid upstream $upstream_name"
+ upstream=$(peel_committish "${upstream_name}") ||
+ die "$(eval_gettext "invalid upstream \$upstream_name")"
upstream_arg="$upstream_name"
else
- test -z "$onto" && die "You must specify --onto when using --root"
+ if test -z "$onto"
+ then
+ empty_tree=$(git hash-object -t tree /dev/null)
+ onto=$(git commit-tree $empty_tree </dev/null)
+ squash_onto="$onto"
+ fi
unset upstream_name
unset upstream
+ test $# -gt 1 && usage
upstream_arg=--root
fi
@@ -406,19 +486,19 @@ case "$onto_name" in
then
case "$onto" in
?*"$LF"?*)
- die "$onto_name: there are more than one merge bases"
+ die "$(eval_gettext "\$onto_name: there are more than one merge bases")"
;;
'')
- die "$onto_name: there is no merge base"
+ die "$(eval_gettext "\$onto_name: there is no merge base")"
;;
esac
else
- die "$onto_name: there is no merge base"
+ die "$(eval_gettext "\$onto_name: there is no merge base")"
fi
;;
*)
- onto=$(git rev-parse --verify "${onto_name}^0") ||
- die "Does not point to a valid commit: $1"
+ onto=$(peel_committish "$onto_name") ||
+ die "$(eval_gettext "Does not point to a valid commit: \$onto_name")"
;;
esac
@@ -441,24 +521,49 @@ case "$#" in
then
head_name="detached HEAD"
else
- die "fatal: no such branch: $1"
+ die "$(eval_gettext "fatal: no such branch: \$branch_name")"
fi
;;
-*)
+0)
# Do not need to switch branches, we are already on it.
- if branch_name=`git symbolic-ref -q HEAD`
+ if branch_name=$(git symbolic-ref -q HEAD)
then
head_name=$branch_name
- branch_name=`expr "z$branch_name" : 'zrefs/heads/\(.*\)'`
+ branch_name=$(expr "z$branch_name" : 'zrefs/heads/\(.*\)')
else
head_name="detached HEAD"
branch_name=HEAD ;# detached
fi
- orig_head=$(git rev-parse --verify "${branch_name}^0") || exit
+ orig_head=$(git rev-parse --verify HEAD) || exit
+ ;;
+*)
+ die "BUG: unexpected number of arguments left to parse"
;;
esac
-require_clean_work_tree "rebase" "Please commit or stash them."
+if test "$fork_point" = t
+then
+ new_upstream=$(git merge-base --fork-point "$upstream_name" \
+ "${switch_to:-HEAD}")
+ if test -n "$new_upstream"
+ then
+ restrict_revision=$new_upstream
+ fi
+fi
+
+if test "$autostash" = true && ! (require_clean_work_tree) 2>/dev/null
+then
+ stash_sha1=$(git stash create "autostash") ||
+ die "$(gettext 'Cannot autostash')"
+
+ mkdir -p "$state_dir" &&
+ echo $stash_sha1 >"$state_dir/autostash" &&
+ stash_abbrev=$(git rev-parse --short $stash_sha1) &&
+ echo "$(eval_gettext 'Created autostash: $stash_abbrev')" &&
+ git reset --hard
+fi
+
+require_clean_work_tree "rebase" "$(gettext "Please commit or stash them.")"
# Now we are rebasing commits $upstream..$orig_head (or with --root,
# everything leading up to $orig_head) on top of $onto
@@ -468,18 +573,21 @@ require_clean_work_tree "rebase" "Please commit or stash them."
# and if this is not an interactive rebase.
mb=$(git merge-base "$onto" "$orig_head")
if test "$type" != interactive && test "$upstream" = "$onto" &&
- test "$mb" = "$onto" &&
+ test "$mb" = "$onto" && test -z "$restrict_revision" &&
# linear history?
! (git rev-list --parents "$onto".."$orig_head" | sane_grep " .* ") > /dev/null
then
if test -z "$force_rebase"
then
# Lazily switch to the target branch if needed...
- test -z "$switch_to" || git checkout "$switch_to" --
- say "Current branch $branch_name is up to date."
+ test -z "$switch_to" ||
+ GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $switch_to" \
+ git checkout "$switch_to" --
+ say "$(eval_gettext "Current branch \$branch_name is up to date.")"
+ finish_rebase
exit 0
else
- say "Current branch $branch_name is up to date, rebase forced."
+ say "$(eval_gettext "Current branch \$branch_name is up to date, rebase forced.")"
fi
fi
@@ -490,7 +598,7 @@ if test -n "$diffstat"
then
if test -n "$verbose"
then
- echo "Changes from $mb to $onto:"
+ echo "$(eval_gettext "Changes from \$mb to \$onto:")"
fi
# We want color (if set), but no pager
GIT_PAGER='' git diff --stat --summary "$mb" "$onto"
@@ -499,16 +607,19 @@ fi
test "$type" = interactive && run_specific_rebase
# Detach HEAD and reset the tree
-say "First, rewinding head to replay your work on top of it..."
-git checkout -q "$onto^0" || die "could not detach HEAD"
+say "$(gettext "First, rewinding head to replay your work on top of it...")"
+
+GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $onto_name" \
+ git checkout -q "$onto^0" || die "could not detach HEAD"
git update-ref ORIG_HEAD $orig_head
# If the $onto is a proper descendant of the tip of the branch, then
# we just fast-forwarded.
if test "$mb" = "$orig_head"
then
- say "Fast-forwarded $branch_name to $onto_name."
+ say "$(eval_gettext "Fast-forwarded \$branch_name to \$onto_name.")"
move_to_original_branch
+ finish_rebase
exit 0
fi
@@ -516,7 +627,7 @@ if test -n "$rebase_root"
then
revisions="$onto..$orig_head"
else
- revisions="$upstream..$orig_head"
+ revisions="${restrict_revision-$upstream}..$orig_head"
fi
run_specific_rebase