3 # Copyright (c) 2005 Junio C Hamano.
9 git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] [<upstream>] [<branch>]
10 git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] --root [<branch>]
11 git-rebase --continue | --abort | --skip | --edit-todo
14 v,verbose! display a diffstat of what changed upstream
15 q,quiet! be quiet. implies --no-stat
16 autostash! automatically stash/stash pop before and after
17 onto=! rebase onto given branch instead of upstream
18 p,preserve-merges! try to recreate merges instead of ignoring them
19 s,strategy=! use the given merge strategy
20 no-ff! cherry-pick all commits, even if unchanged
21 m,merge! use merging strategies to rebase
22 i,interactive! let the user edit the list of commits to rebase
23 x,exec=! add exec lines after each commit of the editable list
24 k,keep-empty preserve empty commits during rebase
25 f,force-rebase! force rebase even if branch is up to date
26 X,strategy-option=! pass the argument through to the merge strategy
27 stat! display a diffstat of what changed upstream
28 n,no-stat! do not show diffstat of what changed upstream
29 verify allow pre-rebase hook to run
30 rerere-autoupdate allow rerere to update index with resolved conflicts
31 root! rebase all reachable commits up to the root(s)
32 autosquash move commits that begin with squash!/fixup! under -i
33 committer-date-is-author-date! passed to 'git am'
34 ignore-date! passed to 'git am'
35 whitespace=! passed to 'git apply'
36 ignore-whitespace! passed to 'git apply'
37 C=! passed to 'git apply'
40 abort! abort and check out the original branch
41 skip! skip current patch and continue
42 edit-todo! edit the todo list during an interactive rebase
46 set_reflog_action rebase
47 require_work_tree_exists
52 ok_to_skip_pre_rebase=
54 $(gettext 'When you have resolved this problem, run "git rebase --continue".
55 If you prefer to skip this patch, run "git rebase --skip" instead.
56 To check out the original branch and stop rebasing, run "git rebase --abort".')
63 merge_dir="$GIT_DIR"/rebase-merge
64 apply_dir="$GIT_DIR"/rebase-apply
67 test "$(git config --bool rebase.stat)" = true && diffstat=t
68 autostash="$(git config --bool rebase.autostash || echo false)"
72 allow_rerere_autoupdate=
73 # Non-empty if a rebase was in progress when 'git rebase' was invoked
75 # One of {am, merge, interactive}
77 # One of {"$GIT_DIR"/rebase-apply, "$GIT_DIR"/rebase-merge}
79 # One of {'', continue, skip, abort}, as parsed from command line
84 test "$(git config --bool rebase.autosquash)" = "true" && autosquash=t
87 test -f "$state_dir/head-name" &&
88 test -f "$state_dir/onto" &&
89 head_name=$(cat "$state_dir"/head-name) &&
90 onto=$(cat "$state_dir"/onto) &&
91 # We always write to orig-head, but interactive rebase used to write to
92 # head. Fall back to reading from head to cover for the case that the
93 # user upgraded git with an ongoing interactive rebase.
94 if test -f "$state_dir"/orig-head
96 orig_head=$(cat "$state_dir"/orig-head)
98 orig_head=$(cat "$state_dir"/head)
100 GIT_QUIET=$(cat "$state_dir"/quiet) &&
101 test -f "$state_dir"/verbose && verbose=t
102 test -f "$state_dir"/strategy && strategy="$(cat "$state_dir"/strategy)"
103 test -f "$state_dir"/strategy_opts &&
104 strategy_opts="$(cat "$state_dir"/strategy_opts)"
105 test -f "$state_dir"/allow_rerere_autoupdate &&
106 allow_rerere_autoupdate="$(cat "$state_dir"/allow_rerere_autoupdate)"
109 write_basic_state () {
110 echo "$head_name" > "$state_dir"/head-name &&
111 echo "$onto" > "$state_dir"/onto &&
112 echo "$orig_head" > "$state_dir"/orig-head &&
113 echo "$GIT_QUIET" > "$state_dir"/quiet &&
114 test t = "$verbose" && : > "$state_dir"/verbose
115 test -n "$strategy" && echo "$strategy" > "$state_dir"/strategy
116 test -n "$strategy_opts" && echo "$strategy_opts" > \
117 "$state_dir"/strategy_opts
118 test -n "$allow_rerere_autoupdate" && echo "$allow_rerere_autoupdate" > \
119 "$state_dir"/allow_rerere_autoupdate
127 test $status != 0 && printf "%s\n" "$output"
136 move_to_original_branch () {
139 message="rebase finished: $head_name onto $onto"
140 git update-ref -m "$message" \
141 $head_name $(git rev-parse HEAD) $orig_head &&
143 -m "rebase finished: returning to $head_name" \
145 die "$(gettext "Could not move back to $head_name")"
151 if test -f "$state_dir/autostash"
153 stash_sha1=$(cat "$state_dir/autostash")
154 if git stash apply $stash_sha1 2>&1 >/dev/null
156 echo "$(gettext 'Applied autostash.')"
158 git stash store -m "autostash" -q $stash_sha1 ||
159 die "$(eval_gettext "Cannot store \$stash_sha1")"
160 gettext 'Applying autostash resulted in conflicts.
161 Your changes are safe in the stash.
162 You can run "git stash pop" or "git stash drop" it at any time.
170 run_specific_rebase () {
171 if [ "$interactive_rebase" = implied ]; then
185 run_pre_rebase_hook () {
186 if test -z "$ok_to_skip_pre_rebase" &&
187 test -x "$GIT_DIR/hooks/pre-rebase"
189 "$GIT_DIR/hooks/pre-rebase" ${1+"$@"} ||
190 die "$(gettext "The pre-rebase hook refused to rebase.")"
194 test -f "$apply_dir"/applying &&
195 die "$(gettext "It looks like git-am is in progress. Cannot rebase.")"
197 if test -d "$apply_dir"
200 state_dir="$apply_dir"
201 elif test -d "$merge_dir"
203 if test -f "$merge_dir"/interactive
206 interactive_rebase=explicit
210 state_dir="$merge_dir"
212 test -n "$type" && in_progress=t
219 ok_to_skip_pre_rebase=yes
222 ok_to_skip_pre_rebase=
224 --continue|--skip|--abort|--edit-todo)
225 test $total_argc -eq 2 || usage
229 test 2 -le "$#" || usage
234 test 2 -le "$#" || usage
235 cmd="${cmd}exec $2${LF}"
239 interactive_rebase=explicit
246 test -z "$interactive_rebase" && interactive_rebase=implied
259 strategy_opts="$strategy_opts $(git rev-parse --sq-quote "--$1")"
261 test -z "$strategy" && strategy=recursive
284 git_am_opt="$git_am_opt -q"
290 git_am_opt="$git_am_opt --whitespace=$1"
298 git_am_opt="$git_am_opt $1"
300 --committer-date-is-author-date|--ignore-date)
301 git_am_opt="$git_am_opt $1"
306 git_am_opt="$git_am_opt -C$1"
314 --rerere-autoupdate|--no-rerere-autoupdate)
315 allow_rerere_autoupdate="$1"
324 test $# -gt 2 && usage
327 test "$interactive_rebase" != explicit
329 die "$(gettext "The --exec option must be used with the --interactive option")"
334 test -z "$in_progress" && die "$(gettext "No rebase in progress?")"
335 # Only interactive rebase uses detailed reflog messages
336 if test "$type" = interactive && test "$GIT_REFLOG_ACTION" = rebase
338 GIT_REFLOG_ACTION="rebase -i ($action)"
339 export GIT_REFLOG_ACTION
343 if test "$action" = "edit-todo" && test "$type" != "interactive"
345 die "$(gettext "The --edit-todo action can only be used during interactive rebase.")"
351 git rev-parse --verify HEAD >/dev/null ||
352 die "$(gettext "Cannot read HEAD")"
353 git update-index --ignore-submodules --refresh &&
354 git diff-files --quiet --ignore-submodules || {
355 echo "$(gettext "You must edit all merge conflicts and then
356 mark them as resolved using git add")"
363 output git reset --hard HEAD || exit $?
372 git symbolic-ref -m "rebase: aborting" HEAD $head_name ||
373 die "$(eval_gettext "Could not move back to \$head_name")"
376 output git reset --hard $orig_head
385 # Make sure no rebase is in progress
386 if test -n "$in_progress"
388 state_dir_base=${state_dir##*/}
389 cmd_live_rebase="git rebase (--continue | --abort | --skip)"
390 cmd_clear_stale_rebase="rm -fr \"$state_dir\""
392 $(eval_gettext 'It seems that there is already a $state_dir_base directory, and
393 I wonder if you are in the middle of another rebase. If that is the
396 If that is not the case, please
397 $cmd_clear_stale_rebase
398 and run me again. I am stopping in case you still have something
402 if test -n "$rebase_root" && test -z "$onto"
404 test -z "$interactive_rebase" && interactive_rebase=implied
407 if test -n "$interactive_rebase"
410 state_dir="$merge_dir"
411 elif test -n "$do_merge"
414 state_dir="$merge_dir"
417 state_dir="$apply_dir"
420 if test -z "$rebase_root"
424 if ! upstream_name=$(git rev-parse --symbolic-full-name \
425 --verify -q @{upstream} 2>/dev/null)
428 error_on_missing_default_upstream "rebase" "rebase" \
429 "against" "git rebase <branch>"
432 *) upstream_name="$1"
436 upstream=$(peel_committish "${upstream_name}") ||
437 die "$(eval_gettext "invalid upstream \$upstream_name")"
438 upstream_arg="$upstream_name"
442 empty_tree=`git hash-object -t tree /dev/null`
443 onto=`git commit-tree $empty_tree </dev/null`
448 test $# -gt 1 && usage
452 # Make sure the branch to rebase onto is valid.
453 onto_name=${onto-"$upstream_name"}
456 if left=${onto_name%...*} right=${onto_name#*...} &&
457 onto=$(git merge-base --all ${left:-HEAD} ${right:-HEAD})
461 die "$(eval_gettext "\$onto_name: there are more than one merge bases")"
464 die "$(eval_gettext "\$onto_name: there is no merge base")"
468 die "$(eval_gettext "\$onto_name: there is no merge base")"
472 onto=$(peel_committish "$onto_name") ||
473 die "$(eval_gettext "Does not point to a valid commit: \$onto_name")"
477 # If the branch to rebase is given, that is the branch we will rebase
478 # $branch_name -- branch being rebased, or HEAD (already detached)
479 # $orig_head -- commit object name of tip of the branch before rebasing
480 # $head_name -- refs/heads/<that-branch> or "detached HEAD"
484 # Is it "rebase other $branchname" or "rebase other $commit"?
488 if git show-ref --verify --quiet -- "refs/heads/$1" &&
489 orig_head=$(git rev-parse -q --verify "refs/heads/$1")
491 head_name="refs/heads/$1"
492 elif orig_head=$(git rev-parse -q --verify "$1")
494 head_name="detached HEAD"
496 die "$(eval_gettext "fatal: no such branch: \$branch_name")"
500 # Do not need to switch branches, we are already on it.
501 if branch_name=`git symbolic-ref -q HEAD`
503 head_name=$branch_name
504 branch_name=`expr "z$branch_name" : 'zrefs/heads/\(.*\)'`
506 head_name="detached HEAD"
507 branch_name=HEAD ;# detached
509 orig_head=$(git rev-parse --verify HEAD) || exit
512 die "BUG: unexpected number of arguments left to parse"
516 if test "$autostash" = true && ! (require_clean_work_tree) 2>/dev/null
518 stash_sha1=$(git stash create "autostash") ||
519 die "$(gettext 'Cannot autostash')"
521 mkdir -p "$state_dir" &&
522 echo $stash_sha1 >"$state_dir/autostash" &&
523 stash_abbrev=$(git rev-parse --short $stash_sha1) &&
524 echo "$(eval_gettext 'Created autostash: $stash_abbrev')" &&
528 require_clean_work_tree "rebase" "$(gettext "Please commit or stash them.")"
530 # Now we are rebasing commits $upstream..$orig_head (or with --root,
531 # everything leading up to $orig_head) on top of $onto
533 # Check if we are already based on $onto with linear history,
534 # but this should be done only when upstream and onto are the same
535 # and if this is not an interactive rebase.
536 mb=$(git merge-base "$onto" "$orig_head")
537 if test "$type" != interactive && test "$upstream" = "$onto" &&
538 test "$mb" = "$onto" &&
540 ! (git rev-list --parents "$onto".."$orig_head" | sane_grep " .* ") > /dev/null
542 if test -z "$force_rebase"
544 # Lazily switch to the target branch if needed...
545 test -z "$switch_to" ||
546 GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $switch_to" \
547 git checkout "$switch_to" --
548 say "$(eval_gettext "Current branch \$branch_name is up to date.")"
552 say "$(eval_gettext "Current branch \$branch_name is up to date, rebase forced.")"
556 # If a hook exists, give it a chance to interrupt
557 run_pre_rebase_hook "$upstream_arg" "$@"
559 if test -n "$diffstat"
561 if test -n "$verbose"
563 echo "$(eval_gettext "Changes from \$mb to \$onto:")"
565 # We want color (if set), but no pager
566 GIT_PAGER='' git diff --stat --summary "$mb" "$onto"
569 test "$type" = interactive && run_specific_rebase
571 # Detach HEAD and reset the tree
572 say "$(gettext "First, rewinding head to replay your work on top of it...")"
574 GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $onto_name" \
575 git checkout -q "$onto^0" || die "could not detach HEAD"
576 git update-ref ORIG_HEAD $orig_head
578 # If the $onto is a proper descendant of the tip of the branch, then
579 # we just fast-forwarded.
580 if test "$mb" = "$orig_head"
582 say "$(eval_gettext "Fast-forwarded \$branch_name to \$onto_name.")"
583 move_to_original_branch
588 if test -n "$rebase_root"
590 revisions="$onto..$orig_head"
592 revisions="$upstream..$orig_head"