2 * "git rebase" builtin command
4 * Copyright (c) 2018 Pratik Karki
7 #define USE_THE_INDEX_COMPATIBILITY_MACROS
9 #include "run-command.h"
11 #include "argv-array.h"
17 #include "cache-tree.h"
18 #include "unpack-trees.h"
20 #include "parse-options.h"
23 #include "wt-status.h"
25 #include "commit-reach.h"
28 #include "sequencer.h"
29 #include "rebase-interactive.h"
31 static char const * const builtin_rebase_usage
[] = {
32 N_("git rebase [-i] [options] [--exec <cmd>] "
33 "[--onto <newbase> | --keep-base] [<upstream> [<branch>]]"),
34 N_("git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] "
36 N_("git rebase --continue | --abort | --skip | --edit-todo"),
40 static GIT_PATH_FUNC(path_squash_onto
, "rebase-merge/squash-onto")
41 static GIT_PATH_FUNC(path_interactive
, "rebase-merge/interactive")
42 static GIT_PATH_FUNC(apply_dir
, "rebase-apply")
43 static GIT_PATH_FUNC(merge_dir
, "rebase-merge")
46 REBASE_UNSPECIFIED
= -1,
50 REBASE_PRESERVE_MERGES
53 struct rebase_options
{
54 enum rebase_type type
;
55 const char *state_dir
;
56 struct commit
*upstream
;
57 const char *upstream_name
;
58 const char *upstream_arg
;
60 struct object_id orig_head
;
62 const char *onto_name
;
63 const char *revisions
;
64 const char *switch_to
;
65 int root
, root_with_onto
;
66 struct object_id
*squash_onto
;
67 struct commit
*restrict_revision
;
68 int dont_finish_rebase
;
70 REBASE_NO_QUIET
= 1<<0,
71 REBASE_VERBOSE
= 1<<1,
72 REBASE_DIFFSTAT
= 1<<2,
74 REBASE_INTERACTIVE_EXPLICIT
= 1<<4,
76 struct argv_array git_am_opts
;
79 int allow_rerere_autoupdate
;
85 int allow_empty_message
;
86 int rebase_merges
, rebase_cousins
;
87 char *strategy
, *strategy_opts
;
88 struct strbuf git_format_patch_opt
;
89 int reschedule_failed_exec
;
90 int use_legacy_rebase
;
93 #define REBASE_OPTIONS_INIT { \
94 .type = REBASE_UNSPECIFIED, \
95 .flags = REBASE_NO_QUIET, \
96 .git_am_opts = ARGV_ARRAY_INIT, \
97 .git_format_patch_opt = STRBUF_INIT \
100 static struct replay_opts
get_replay_opts(const struct rebase_options
*opts
)
102 struct replay_opts replay
= REPLAY_OPTS_INIT
;
104 replay
.action
= REPLAY_INTERACTIVE_REBASE
;
105 sequencer_init_config(&replay
);
107 replay
.signoff
= opts
->signoff
;
108 replay
.allow_ff
= !(opts
->flags
& REBASE_FORCE
);
109 if (opts
->allow_rerere_autoupdate
)
110 replay
.allow_rerere_auto
= opts
->allow_rerere_autoupdate
;
111 replay
.allow_empty
= 1;
112 replay
.allow_empty_message
= opts
->allow_empty_message
;
113 replay
.verbose
= opts
->flags
& REBASE_VERBOSE
;
114 replay
.reschedule_failed_exec
= opts
->reschedule_failed_exec
;
115 replay
.gpg_sign
= xstrdup_or_null(opts
->gpg_sign_opt
);
116 replay
.strategy
= opts
->strategy
;
117 if (opts
->strategy_opts
)
118 parse_strategy_opts(&replay
, opts
->strategy_opts
);
130 ACTION_SHOW_CURRENT_PATCH
,
133 ACTION_CHECK_TODO_LIST
,
134 ACTION_REARRANGE_SQUASH
,
138 static const char *action_names
[] = { "undefined",
144 "show_current_patch" };
146 static int add_exec_commands(struct string_list
*commands
)
148 const char *todo_file
= rebase_path_todo();
149 struct todo_list todo_list
= TODO_LIST_INIT
;
152 if (strbuf_read_file(&todo_list
.buf
, todo_file
, 0) < 0)
153 return error_errno(_("could not read '%s'."), todo_file
);
155 if (todo_list_parse_insn_buffer(the_repository
, todo_list
.buf
.buf
,
157 todo_list_release(&todo_list
);
158 return error(_("unusable todo list: '%s'"), todo_file
);
161 todo_list_add_exec_commands(&todo_list
, commands
);
162 res
= todo_list_write_to_file(the_repository
, &todo_list
,
163 todo_file
, NULL
, NULL
, -1, 0);
164 todo_list_release(&todo_list
);
167 return error_errno(_("could not write '%s'."), todo_file
);
171 static int rearrange_squash_in_todo_file(void)
173 const char *todo_file
= rebase_path_todo();
174 struct todo_list todo_list
= TODO_LIST_INIT
;
177 if (strbuf_read_file(&todo_list
.buf
, todo_file
, 0) < 0)
178 return error_errno(_("could not read '%s'."), todo_file
);
179 if (todo_list_parse_insn_buffer(the_repository
, todo_list
.buf
.buf
,
181 todo_list_release(&todo_list
);
182 return error(_("unusable todo list: '%s'"), todo_file
);
185 res
= todo_list_rearrange_squash(&todo_list
);
187 res
= todo_list_write_to_file(the_repository
, &todo_list
,
188 todo_file
, NULL
, NULL
, -1, 0);
190 todo_list_release(&todo_list
);
193 return error_errno(_("could not write '%s'."), todo_file
);
197 static int transform_todo_file(unsigned flags
)
199 const char *todo_file
= rebase_path_todo();
200 struct todo_list todo_list
= TODO_LIST_INIT
;
203 if (strbuf_read_file(&todo_list
.buf
, todo_file
, 0) < 0)
204 return error_errno(_("could not read '%s'."), todo_file
);
206 if (todo_list_parse_insn_buffer(the_repository
, todo_list
.buf
.buf
,
208 todo_list_release(&todo_list
);
209 return error(_("unusable todo list: '%s'"), todo_file
);
212 res
= todo_list_write_to_file(the_repository
, &todo_list
, todo_file
,
213 NULL
, NULL
, -1, flags
);
214 todo_list_release(&todo_list
);
217 return error_errno(_("could not write '%s'."), todo_file
);
221 static int edit_todo_file(unsigned flags
)
223 const char *todo_file
= rebase_path_todo();
224 struct todo_list todo_list
= TODO_LIST_INIT
,
225 new_todo
= TODO_LIST_INIT
;
228 if (strbuf_read_file(&todo_list
.buf
, todo_file
, 0) < 0)
229 return error_errno(_("could not read '%s'."), todo_file
);
231 strbuf_stripspace(&todo_list
.buf
, 1);
232 res
= edit_todo_list(the_repository
, &todo_list
, &new_todo
, NULL
, NULL
, flags
);
233 if (!res
&& todo_list_write_to_file(the_repository
, &new_todo
, todo_file
,
234 NULL
, NULL
, -1, flags
& ~(TODO_LIST_SHORTEN_IDS
)))
235 res
= error_errno(_("could not write '%s'"), todo_file
);
237 todo_list_release(&todo_list
);
238 todo_list_release(&new_todo
);
243 static int get_revision_ranges(struct commit
*upstream
, struct commit
*onto
,
244 const char **head_hash
,
245 char **revisions
, char **shortrevisions
)
247 struct commit
*base_rev
= upstream
? upstream
: onto
;
248 const char *shorthead
;
249 struct object_id orig_head
;
251 if (get_oid("HEAD", &orig_head
))
252 return error(_("no HEAD?"));
254 *head_hash
= find_unique_abbrev(&orig_head
, GIT_MAX_HEXSZ
);
255 *revisions
= xstrfmt("%s...%s", oid_to_hex(&base_rev
->object
.oid
),
258 shorthead
= find_unique_abbrev(&orig_head
, DEFAULT_ABBREV
);
261 const char *shortrev
;
263 shortrev
= find_unique_abbrev(&base_rev
->object
.oid
,
266 *shortrevisions
= xstrfmt("%s..%s", shortrev
, shorthead
);
268 *shortrevisions
= xstrdup(shorthead
);
273 static int init_basic_state(struct replay_opts
*opts
, const char *head_name
,
274 struct commit
*onto
, const char *orig_head
)
278 if (!is_directory(merge_dir()) && mkdir_in_gitdir(merge_dir()))
279 return error_errno(_("could not create temporary %s"), merge_dir());
281 delete_reflog("REBASE_HEAD");
283 interactive
= fopen(path_interactive(), "w");
285 return error_errno(_("could not mark as interactive"));
288 return write_basic_state(opts
, head_name
, onto
, orig_head
);
291 static void split_exec_commands(const char *cmd
, struct string_list
*commands
)
294 string_list_split(commands
, cmd
, '\n', -1);
296 /* rebase.c adds a new line to cmd after every command,
297 * so here the last command is always empty */
298 string_list_remove_empty_items(commands
, 0);
302 static int do_interactive_rebase(struct rebase_options
*opts
, unsigned flags
)
305 const char *head_hash
= NULL
;
306 char *revisions
= NULL
, *shortrevisions
= NULL
;
307 struct argv_array make_script_args
= ARGV_ARRAY_INIT
;
308 struct todo_list todo_list
= TODO_LIST_INIT
;
309 struct replay_opts replay
= get_replay_opts(opts
);
310 struct string_list commands
= STRING_LIST_INIT_DUP
;
312 if (prepare_branch_to_be_rebased(the_repository
, &replay
,
316 if (get_revision_ranges(opts
->upstream
, opts
->onto
, &head_hash
,
317 &revisions
, &shortrevisions
))
320 if (init_basic_state(&replay
,
321 opts
->head_name
? opts
->head_name
: "detached HEAD",
322 opts
->onto
, head_hash
)) {
324 free(shortrevisions
);
329 if (!opts
->upstream
&& opts
->squash_onto
)
330 write_file(path_squash_onto(), "%s\n",
331 oid_to_hex(opts
->squash_onto
));
333 argv_array_pushl(&make_script_args
, "", revisions
, NULL
);
334 if (opts
->restrict_revision
)
335 argv_array_push(&make_script_args
,
336 oid_to_hex(&opts
->restrict_revision
->object
.oid
));
338 ret
= sequencer_make_script(the_repository
, &todo_list
.buf
,
339 make_script_args
.argc
, make_script_args
.argv
,
343 error(_("could not generate todo list"));
346 if (todo_list_parse_insn_buffer(the_repository
, todo_list
.buf
.buf
,
348 BUG("unusable todo list");
350 split_exec_commands(opts
->cmd
, &commands
);
351 ret
= complete_action(the_repository
, &replay
, flags
,
352 shortrevisions
, opts
->onto_name
, opts
->onto
, head_hash
,
353 &commands
, opts
->autosquash
, &todo_list
);
356 string_list_clear(&commands
, 0);
358 free(shortrevisions
);
359 todo_list_release(&todo_list
);
360 argv_array_clear(&make_script_args
);
365 static int run_rebase_interactive(struct rebase_options
*opts
,
369 int abbreviate_commands
= 0, ret
= 0;
371 git_config_get_bool("rebase.abbreviatecommands", &abbreviate_commands
);
373 flags
|= opts
->keep_empty
? TODO_LIST_KEEP_EMPTY
: 0;
374 flags
|= abbreviate_commands
? TODO_LIST_ABBREVIATE_CMDS
: 0;
375 flags
|= opts
->rebase_merges
? TODO_LIST_REBASE_MERGES
: 0;
376 flags
|= opts
->rebase_cousins
> 0 ? TODO_LIST_REBASE_COUSINS
: 0;
377 flags
|= opts
->root_with_onto
? TODO_LIST_ROOT_WITH_ONTO
: 0;
378 flags
|= command
== ACTION_SHORTEN_OIDS
? TODO_LIST_SHORTEN_IDS
: 0;
382 if (!opts
->onto
&& !opts
->upstream
)
383 die(_("a base commit must be provided with --upstream or --onto"));
385 ret
= do_interactive_rebase(opts
, flags
);
389 struct string_list merge_rr
= STRING_LIST_INIT_DUP
;
391 rerere_clear(the_repository
, &merge_rr
);
394 case ACTION_CONTINUE
: {
395 struct replay_opts replay_opts
= get_replay_opts(opts
);
397 ret
= sequencer_continue(the_repository
, &replay_opts
);
400 case ACTION_EDIT_TODO
:
401 ret
= edit_todo_file(flags
);
403 case ACTION_SHOW_CURRENT_PATCH
: {
404 struct child_process cmd
= CHILD_PROCESS_INIT
;
407 argv_array_pushl(&cmd
.args
, "show", "REBASE_HEAD", "--", NULL
);
408 ret
= run_command(&cmd
);
412 case ACTION_SHORTEN_OIDS
:
413 case ACTION_EXPAND_OIDS
:
414 ret
= transform_todo_file(flags
);
416 case ACTION_CHECK_TODO_LIST
:
417 ret
= check_todo_list_from_file(the_repository
);
419 case ACTION_REARRANGE_SQUASH
:
420 ret
= rearrange_squash_in_todo_file();
422 case ACTION_ADD_EXEC
: {
423 struct string_list commands
= STRING_LIST_INIT_DUP
;
425 split_exec_commands(opts
->cmd
, &commands
);
426 ret
= add_exec_commands(&commands
);
427 string_list_clear(&commands
, 0);
431 BUG("invalid command '%d'", command
);
437 static const char * const builtin_rebase_interactive_usage
[] = {
438 N_("git rebase--interactive [<options>]"),
442 int cmd_rebase__interactive(int argc
, const char **argv
, const char *prefix
)
444 struct rebase_options opts
= REBASE_OPTIONS_INIT
;
445 struct object_id squash_onto
= null_oid
;
446 enum action command
= ACTION_NONE
;
447 struct option options
[] = {
448 OPT_NEGBIT(0, "ff", &opts
.flags
, N_("allow fast-forward"),
450 OPT_BOOL(0, "keep-empty", &opts
.keep_empty
, N_("keep empty commits")),
451 OPT_BOOL(0, "allow-empty-message", &opts
.allow_empty_message
,
452 N_("allow commits with empty messages")),
453 OPT_BOOL(0, "rebase-merges", &opts
.rebase_merges
, N_("rebase merge commits")),
454 OPT_BOOL(0, "rebase-cousins", &opts
.rebase_cousins
,
455 N_("keep original branch points of cousins")),
456 OPT_BOOL(0, "autosquash", &opts
.autosquash
,
457 N_("move commits that begin with squash!/fixup!")),
458 OPT_BOOL(0, "signoff", &opts
.signoff
, N_("sign commits")),
459 OPT_BIT('v', "verbose", &opts
.flags
,
460 N_("display a diffstat of what changed upstream"),
461 REBASE_NO_QUIET
| REBASE_VERBOSE
| REBASE_DIFFSTAT
),
462 OPT_CMDMODE(0, "continue", &command
, N_("continue rebase"),
464 OPT_CMDMODE(0, "skip", &command
, N_("skip commit"), ACTION_SKIP
),
465 OPT_CMDMODE(0, "edit-todo", &command
, N_("edit the todo list"),
467 OPT_CMDMODE(0, "show-current-patch", &command
, N_("show the current patch"),
468 ACTION_SHOW_CURRENT_PATCH
),
469 OPT_CMDMODE(0, "shorten-ids", &command
,
470 N_("shorten commit ids in the todo list"), ACTION_SHORTEN_OIDS
),
471 OPT_CMDMODE(0, "expand-ids", &command
,
472 N_("expand commit ids in the todo list"), ACTION_EXPAND_OIDS
),
473 OPT_CMDMODE(0, "check-todo-list", &command
,
474 N_("check the todo list"), ACTION_CHECK_TODO_LIST
),
475 OPT_CMDMODE(0, "rearrange-squash", &command
,
476 N_("rearrange fixup/squash lines"), ACTION_REARRANGE_SQUASH
),
477 OPT_CMDMODE(0, "add-exec-commands", &command
,
478 N_("insert exec commands in todo list"), ACTION_ADD_EXEC
),
479 { OPTION_CALLBACK
, 0, "onto", &opts
.onto
, N_("onto"), N_("onto"),
480 PARSE_OPT_NONEG
, parse_opt_commit
, 0 },
481 { OPTION_CALLBACK
, 0, "restrict-revision", &opts
.restrict_revision
,
482 N_("restrict-revision"), N_("restrict revision"),
483 PARSE_OPT_NONEG
, parse_opt_commit
, 0 },
484 { OPTION_CALLBACK
, 0, "squash-onto", &squash_onto
, N_("squash-onto"),
485 N_("squash onto"), PARSE_OPT_NONEG
, parse_opt_object_id
, 0 },
486 { OPTION_CALLBACK
, 0, "upstream", &opts
.upstream
, N_("upstream"),
487 N_("the upstream commit"), PARSE_OPT_NONEG
, parse_opt_commit
,
489 OPT_STRING(0, "head-name", &opts
.head_name
, N_("head-name"), N_("head name")),
490 { OPTION_STRING
, 'S', "gpg-sign", &opts
.gpg_sign_opt
, N_("key-id"),
491 N_("GPG-sign commits"),
492 PARSE_OPT_OPTARG
, NULL
, (intptr_t) "" },
493 OPT_STRING(0, "strategy", &opts
.strategy
, N_("strategy"),
494 N_("rebase strategy")),
495 OPT_STRING(0, "strategy-opts", &opts
.strategy_opts
, N_("strategy-opts"),
496 N_("strategy options")),
497 OPT_STRING(0, "switch-to", &opts
.switch_to
, N_("switch-to"),
498 N_("the branch or commit to checkout")),
499 OPT_STRING(0, "onto-name", &opts
.onto_name
, N_("onto-name"), N_("onto name")),
500 OPT_STRING(0, "cmd", &opts
.cmd
, N_("cmd"), N_("the command to run")),
501 OPT_RERERE_AUTOUPDATE(&opts
.allow_rerere_autoupdate
),
502 OPT_BOOL(0, "reschedule-failed-exec", &opts
.reschedule_failed_exec
,
503 N_("automatically re-schedule any `exec` that fails")),
507 opts
.rebase_cousins
= -1;
510 usage_with_options(builtin_rebase_interactive_usage
, options
);
512 argc
= parse_options(argc
, argv
, prefix
, options
,
513 builtin_rebase_interactive_usage
, PARSE_OPT_KEEP_ARGV0
);
515 if (!is_null_oid(&squash_onto
))
516 opts
.squash_onto
= &squash_onto
;
518 if (opts
.rebase_cousins
>= 0 && !opts
.rebase_merges
)
519 warning(_("--[no-]rebase-cousins has no effect without "
522 return !!run_rebase_interactive(&opts
, command
);
525 static int is_interactive(struct rebase_options
*opts
)
527 return opts
->type
== REBASE_INTERACTIVE
||
528 opts
->type
== REBASE_PRESERVE_MERGES
;
531 static void imply_interactive(struct rebase_options
*opts
, const char *option
)
533 switch (opts
->type
) {
535 die(_("%s requires an interactive rebase"), option
);
537 case REBASE_INTERACTIVE
:
538 case REBASE_PRESERVE_MERGES
:
541 /* we now implement --merge via --interactive */
543 opts
->type
= REBASE_INTERACTIVE
; /* implied */
548 /* Returns the filename prefixed by the state_dir */
549 static const char *state_dir_path(const char *filename
, struct rebase_options
*opts
)
551 static struct strbuf path
= STRBUF_INIT
;
552 static size_t prefix_len
;
555 strbuf_addf(&path
, "%s/", opts
->state_dir
);
556 prefix_len
= path
.len
;
559 strbuf_setlen(&path
, prefix_len
);
560 strbuf_addstr(&path
, filename
);
564 /* Read one file, then strip line endings */
565 static int read_one(const char *path
, struct strbuf
*buf
)
567 if (strbuf_read_file(buf
, path
, 0) < 0)
568 return error_errno(_("could not read '%s'"), path
);
569 strbuf_trim_trailing_newline(buf
);
573 /* Initialize the rebase options from the state directory. */
574 static int read_basic_state(struct rebase_options
*opts
)
576 struct strbuf head_name
= STRBUF_INIT
;
577 struct strbuf buf
= STRBUF_INIT
;
578 struct object_id oid
;
580 if (read_one(state_dir_path("head-name", opts
), &head_name
) ||
581 read_one(state_dir_path("onto", opts
), &buf
))
583 opts
->head_name
= starts_with(head_name
.buf
, "refs/") ?
584 xstrdup(head_name
.buf
) : NULL
;
585 strbuf_release(&head_name
);
586 if (get_oid(buf
.buf
, &oid
))
587 return error(_("could not get 'onto': '%s'"), buf
.buf
);
588 opts
->onto
= lookup_commit_or_die(&oid
, buf
.buf
);
591 * We always write to orig-head, but interactive rebase used to write to
592 * head. Fall back to reading from head to cover for the case that the
593 * user upgraded git with an ongoing interactive rebase.
596 if (file_exists(state_dir_path("orig-head", opts
))) {
597 if (read_one(state_dir_path("orig-head", opts
), &buf
))
599 } else if (read_one(state_dir_path("head", opts
), &buf
))
601 if (get_oid(buf
.buf
, &opts
->orig_head
))
602 return error(_("invalid orig-head: '%s'"), buf
.buf
);
604 if (file_exists(state_dir_path("quiet", opts
)))
605 opts
->flags
&= ~REBASE_NO_QUIET
;
607 opts
->flags
|= REBASE_NO_QUIET
;
609 if (file_exists(state_dir_path("verbose", opts
)))
610 opts
->flags
|= REBASE_VERBOSE
;
612 if (file_exists(state_dir_path("signoff", opts
))) {
614 opts
->flags
|= REBASE_FORCE
;
617 if (file_exists(state_dir_path("allow_rerere_autoupdate", opts
))) {
619 if (read_one(state_dir_path("allow_rerere_autoupdate", opts
),
622 if (!strcmp(buf
.buf
, "--rerere-autoupdate"))
623 opts
->allow_rerere_autoupdate
= RERERE_AUTOUPDATE
;
624 else if (!strcmp(buf
.buf
, "--no-rerere-autoupdate"))
625 opts
->allow_rerere_autoupdate
= RERERE_NOAUTOUPDATE
;
627 warning(_("ignoring invalid allow_rerere_autoupdate: "
631 if (file_exists(state_dir_path("gpg_sign_opt", opts
))) {
633 if (read_one(state_dir_path("gpg_sign_opt", opts
),
636 free(opts
->gpg_sign_opt
);
637 opts
->gpg_sign_opt
= xstrdup(buf
.buf
);
640 if (file_exists(state_dir_path("strategy", opts
))) {
642 if (read_one(state_dir_path("strategy", opts
), &buf
))
644 free(opts
->strategy
);
645 opts
->strategy
= xstrdup(buf
.buf
);
648 if (file_exists(state_dir_path("strategy_opts", opts
))) {
650 if (read_one(state_dir_path("strategy_opts", opts
), &buf
))
652 free(opts
->strategy_opts
);
653 opts
->strategy_opts
= xstrdup(buf
.buf
);
656 strbuf_release(&buf
);
661 static int rebase_write_basic_state(struct rebase_options
*opts
)
663 write_file(state_dir_path("head-name", opts
), "%s",
664 opts
->head_name
? opts
->head_name
: "detached HEAD");
665 write_file(state_dir_path("onto", opts
), "%s",
666 opts
->onto
? oid_to_hex(&opts
->onto
->object
.oid
) : "");
667 write_file(state_dir_path("orig-head", opts
), "%s",
668 oid_to_hex(&opts
->orig_head
));
669 write_file(state_dir_path("quiet", opts
), "%s",
670 opts
->flags
& REBASE_NO_QUIET
? "" : "t");
671 if (opts
->flags
& REBASE_VERBOSE
)
672 write_file(state_dir_path("verbose", opts
), "%s", "");
674 write_file(state_dir_path("strategy", opts
), "%s",
676 if (opts
->strategy_opts
)
677 write_file(state_dir_path("strategy_opts", opts
), "%s",
678 opts
->strategy_opts
);
679 if (opts
->allow_rerere_autoupdate
> 0)
680 write_file(state_dir_path("allow_rerere_autoupdate", opts
),
681 "-%s-rerere-autoupdate",
682 opts
->allow_rerere_autoupdate
== RERERE_AUTOUPDATE
?
684 if (opts
->gpg_sign_opt
)
685 write_file(state_dir_path("gpg_sign_opt", opts
), "%s",
688 write_file(state_dir_path("strategy", opts
), "--signoff");
693 static int apply_autostash(struct rebase_options
*opts
)
695 const char *path
= state_dir_path("autostash", opts
);
696 struct strbuf autostash
= STRBUF_INIT
;
697 struct child_process stash_apply
= CHILD_PROCESS_INIT
;
699 if (!file_exists(path
))
702 if (read_one(path
, &autostash
))
703 return error(_("Could not read '%s'"), path
);
704 /* Ensure that the hash is not mistaken for a number */
705 strbuf_addstr(&autostash
, "^0");
706 argv_array_pushl(&stash_apply
.args
,
707 "stash", "apply", autostash
.buf
, NULL
);
708 stash_apply
.git_cmd
= 1;
709 stash_apply
.no_stderr
= stash_apply
.no_stdout
=
710 stash_apply
.no_stdin
= 1;
711 if (!run_command(&stash_apply
))
712 printf(_("Applied autostash.\n"));
714 struct argv_array args
= ARGV_ARRAY_INIT
;
717 argv_array_pushl(&args
,
718 "stash", "store", "-m", "autostash", "-q",
719 autostash
.buf
, NULL
);
720 if (run_command_v_opt(args
.argv
, RUN_GIT_CMD
))
721 res
= error(_("Cannot store %s"), autostash
.buf
);
722 argv_array_clear(&args
);
723 strbuf_release(&autostash
);
728 _("Applying autostash resulted in conflicts.\n"
729 "Your changes are safe in the stash.\n"
730 "You can run \"git stash pop\" or \"git stash drop\" "
734 strbuf_release(&autostash
);
738 static int finish_rebase(struct rebase_options
*opts
)
740 struct strbuf dir
= STRBUF_INIT
;
741 const char *argv_gc_auto
[] = { "gc", "--auto", NULL
};
744 delete_ref(NULL
, "REBASE_HEAD", NULL
, REF_NO_DEREF
);
745 apply_autostash(opts
);
746 close_object_store(the_repository
->objects
);
748 * We ignore errors in 'gc --auto', since the
749 * user should see them.
751 run_command_v_opt(argv_gc_auto
, RUN_GIT_CMD
);
752 if (opts
->type
== REBASE_INTERACTIVE
) {
753 struct replay_opts replay
= REPLAY_OPTS_INIT
;
755 replay
.action
= REPLAY_INTERACTIVE_REBASE
;
756 ret
= sequencer_remove_state(&replay
);
758 strbuf_addstr(&dir
, opts
->state_dir
);
759 if (remove_dir_recursively(&dir
, 0))
760 ret
= error(_("could not remove '%s'"),
762 strbuf_release(&dir
);
768 static struct commit
*peel_committish(const char *name
)
771 struct object_id oid
;
773 if (get_oid(name
, &oid
))
775 obj
= parse_object(the_repository
, &oid
);
776 return (struct commit
*)peel_to_type(name
, 0, obj
, OBJ_COMMIT
);
779 static void add_var(struct strbuf
*buf
, const char *name
, const char *value
)
782 strbuf_addf(buf
, "unset %s; ", name
);
784 strbuf_addf(buf
, "%s=", name
);
785 sq_quote_buf(buf
, value
);
786 strbuf_addstr(buf
, "; ");
790 #define GIT_REFLOG_ACTION_ENVIRONMENT "GIT_REFLOG_ACTION"
792 #define RESET_HEAD_DETACH (1<<0)
793 #define RESET_HEAD_HARD (1<<1)
794 #define RESET_HEAD_RUN_POST_CHECKOUT_HOOK (1<<2)
795 #define RESET_HEAD_REFS_ONLY (1<<3)
796 #define RESET_ORIG_HEAD (1<<4)
798 static int reset_head(struct object_id
*oid
, const char *action
,
799 const char *switch_to_branch
, unsigned flags
,
800 const char *reflog_orig_head
, const char *reflog_head
)
802 unsigned detach_head
= flags
& RESET_HEAD_DETACH
;
803 unsigned reset_hard
= flags
& RESET_HEAD_HARD
;
804 unsigned run_hook
= flags
& RESET_HEAD_RUN_POST_CHECKOUT_HOOK
;
805 unsigned refs_only
= flags
& RESET_HEAD_REFS_ONLY
;
806 unsigned update_orig_head
= flags
& RESET_ORIG_HEAD
;
807 struct object_id head_oid
;
808 struct tree_desc desc
[2] = { { NULL
}, { NULL
} };
809 struct lock_file lock
= LOCK_INIT
;
810 struct unpack_trees_options unpack_tree_opts
;
812 const char *reflog_action
;
813 struct strbuf msg
= STRBUF_INIT
;
815 struct object_id
*orig
= NULL
, oid_orig
,
816 *old_orig
= NULL
, oid_old_orig
;
819 if (switch_to_branch
&& !starts_with(switch_to_branch
, "refs/"))
820 BUG("Not a fully qualified branch: '%s'", switch_to_branch
);
822 if (!refs_only
&& hold_locked_index(&lock
, LOCK_REPORT_ON_ERROR
) < 0) {
824 goto leave_reset_head
;
827 if ((!oid
|| !reset_hard
) && get_oid("HEAD", &head_oid
)) {
828 ret
= error(_("could not determine HEAD revision"));
829 goto leave_reset_head
;
836 goto reset_head_refs
;
838 memset(&unpack_tree_opts
, 0, sizeof(unpack_tree_opts
));
839 setup_unpack_trees_porcelain(&unpack_tree_opts
, action
);
840 unpack_tree_opts
.head_idx
= 1;
841 unpack_tree_opts
.src_index
= the_repository
->index
;
842 unpack_tree_opts
.dst_index
= the_repository
->index
;
843 unpack_tree_opts
.fn
= reset_hard
? oneway_merge
: twoway_merge
;
844 unpack_tree_opts
.update
= 1;
845 unpack_tree_opts
.merge
= 1;
847 unpack_tree_opts
.reset
= 1;
849 if (repo_read_index_unmerged(the_repository
) < 0) {
850 ret
= error(_("could not read index"));
851 goto leave_reset_head
;
854 if (!reset_hard
&& !fill_tree_descriptor(the_repository
, &desc
[nr
++], &head_oid
)) {
855 ret
= error(_("failed to find tree of %s"),
856 oid_to_hex(&head_oid
));
857 goto leave_reset_head
;
860 if (!fill_tree_descriptor(the_repository
, &desc
[nr
++], oid
)) {
861 ret
= error(_("failed to find tree of %s"), oid_to_hex(oid
));
862 goto leave_reset_head
;
865 if (unpack_trees(nr
, desc
, &unpack_tree_opts
)) {
867 goto leave_reset_head
;
870 tree
= parse_tree_indirect(oid
);
871 prime_cache_tree(the_repository
, the_repository
->index
, tree
);
873 if (write_locked_index(the_repository
->index
, &lock
, COMMIT_LOCK
) < 0) {
874 ret
= error(_("could not write index"));
875 goto leave_reset_head
;
879 reflog_action
= getenv(GIT_REFLOG_ACTION_ENVIRONMENT
);
880 strbuf_addf(&msg
, "%s: ", reflog_action
? reflog_action
: "rebase");
881 prefix_len
= msg
.len
;
883 if (update_orig_head
) {
884 if (!get_oid("ORIG_HEAD", &oid_old_orig
))
885 old_orig
= &oid_old_orig
;
886 if (!get_oid("HEAD", &oid_orig
)) {
888 if (!reflog_orig_head
) {
889 strbuf_addstr(&msg
, "updating ORIG_HEAD");
890 reflog_orig_head
= msg
.buf
;
892 update_ref(reflog_orig_head
, "ORIG_HEAD", orig
,
893 old_orig
, 0, UPDATE_REFS_MSG_ON_ERR
);
895 delete_ref(NULL
, "ORIG_HEAD", old_orig
, 0);
899 strbuf_setlen(&msg
, prefix_len
);
900 strbuf_addstr(&msg
, "updating HEAD");
901 reflog_head
= msg
.buf
;
903 if (!switch_to_branch
)
904 ret
= update_ref(reflog_head
, "HEAD", oid
, orig
,
905 detach_head
? REF_NO_DEREF
: 0,
906 UPDATE_REFS_MSG_ON_ERR
);
908 ret
= update_ref(reflog_head
, switch_to_branch
, oid
,
909 NULL
, 0, UPDATE_REFS_MSG_ON_ERR
);
911 ret
= create_symref("HEAD", switch_to_branch
,
915 run_hook_le(NULL
, "post-checkout",
916 oid_to_hex(orig
? orig
: &null_oid
),
917 oid_to_hex(oid
), "1", NULL
);
920 strbuf_release(&msg
);
921 rollback_lock_file(&lock
);
923 free((void *)desc
[--nr
].buffer
);
927 static int move_to_original_branch(struct rebase_options
*opts
)
929 struct strbuf orig_head_reflog
= STRBUF_INIT
, head_reflog
= STRBUF_INIT
;
932 if (!opts
->head_name
)
933 return 0; /* nothing to move back to */
936 BUG("move_to_original_branch without onto");
938 strbuf_addf(&orig_head_reflog
, "rebase finished: %s onto %s",
939 opts
->head_name
, oid_to_hex(&opts
->onto
->object
.oid
));
940 strbuf_addf(&head_reflog
, "rebase finished: returning to %s",
942 ret
= reset_head(NULL
, "", opts
->head_name
, RESET_HEAD_REFS_ONLY
,
943 orig_head_reflog
.buf
, head_reflog
.buf
);
945 strbuf_release(&orig_head_reflog
);
946 strbuf_release(&head_reflog
);
950 static const char *resolvemsg
=
951 N_("Resolve all conflicts manually, mark them as resolved with\n"
952 "\"git add/rm <conflicted_files>\", then run \"git rebase --continue\".\n"
953 "You can instead skip this commit: run \"git rebase --skip\".\n"
954 "To abort and get back to the state before \"git rebase\", run "
955 "\"git rebase --abort\".");
957 static int run_am(struct rebase_options
*opts
)
959 struct child_process am
= CHILD_PROCESS_INIT
;
960 struct child_process format_patch
= CHILD_PROCESS_INIT
;
961 struct strbuf revisions
= STRBUF_INIT
;
963 char *rebased_patches
;
966 argv_array_push(&am
.args
, "am");
968 if (opts
->action
&& !strcmp("continue", opts
->action
)) {
969 argv_array_push(&am
.args
, "--resolved");
970 argv_array_pushf(&am
.args
, "--resolvemsg=%s", resolvemsg
);
971 if (opts
->gpg_sign_opt
)
972 argv_array_push(&am
.args
, opts
->gpg_sign_opt
);
973 status
= run_command(&am
);
977 return move_to_original_branch(opts
);
979 if (opts
->action
&& !strcmp("skip", opts
->action
)) {
980 argv_array_push(&am
.args
, "--skip");
981 argv_array_pushf(&am
.args
, "--resolvemsg=%s", resolvemsg
);
982 status
= run_command(&am
);
986 return move_to_original_branch(opts
);
988 if (opts
->action
&& !strcmp("show-current-patch", opts
->action
)) {
989 argv_array_push(&am
.args
, "--show-current-patch");
990 return run_command(&am
);
993 strbuf_addf(&revisions
, "%s...%s",
994 oid_to_hex(opts
->root
?
995 /* this is now equivalent to !opts->upstream */
996 &opts
->onto
->object
.oid
:
997 &opts
->upstream
->object
.oid
),
998 oid_to_hex(&opts
->orig_head
));
1000 rebased_patches
= xstrdup(git_path("rebased-patches"));
1001 format_patch
.out
= open(rebased_patches
,
1002 O_WRONLY
| O_CREAT
| O_TRUNC
, 0666);
1003 if (format_patch
.out
< 0) {
1004 status
= error_errno(_("could not open '%s' for writing"),
1006 free(rebased_patches
);
1007 argv_array_clear(&am
.args
);
1011 format_patch
.git_cmd
= 1;
1012 argv_array_pushl(&format_patch
.args
, "format-patch", "-k", "--stdout",
1013 "--full-index", "--cherry-pick", "--right-only",
1014 "--src-prefix=a/", "--dst-prefix=b/", "--no-renames",
1015 "--no-cover-letter", "--pretty=mboxrd", "--topo-order",
1017 if (opts
->git_format_patch_opt
.len
)
1018 argv_array_split(&format_patch
.args
,
1019 opts
->git_format_patch_opt
.buf
);
1020 argv_array_push(&format_patch
.args
, revisions
.buf
);
1021 if (opts
->restrict_revision
)
1022 argv_array_pushf(&format_patch
.args
, "^%s",
1023 oid_to_hex(&opts
->restrict_revision
->object
.oid
));
1025 status
= run_command(&format_patch
);
1027 unlink(rebased_patches
);
1028 free(rebased_patches
);
1029 argv_array_clear(&am
.args
);
1031 reset_head(&opts
->orig_head
, "checkout", opts
->head_name
, 0,
1033 error(_("\ngit encountered an error while preparing the "
1034 "patches to replay\n"
1035 "these revisions:\n"
1037 "As a result, git cannot rebase them."),
1040 strbuf_release(&revisions
);
1043 strbuf_release(&revisions
);
1045 am
.in
= open(rebased_patches
, O_RDONLY
);
1047 status
= error_errno(_("could not open '%s' for reading"),
1049 free(rebased_patches
);
1050 argv_array_clear(&am
.args
);
1054 argv_array_pushv(&am
.args
, opts
->git_am_opts
.argv
);
1055 argv_array_push(&am
.args
, "--rebasing");
1056 argv_array_pushf(&am
.args
, "--resolvemsg=%s", resolvemsg
);
1057 argv_array_push(&am
.args
, "--patch-format=mboxrd");
1058 if (opts
->allow_rerere_autoupdate
== RERERE_AUTOUPDATE
)
1059 argv_array_push(&am
.args
, "--rerere-autoupdate");
1060 else if (opts
->allow_rerere_autoupdate
== RERERE_NOAUTOUPDATE
)
1061 argv_array_push(&am
.args
, "--no-rerere-autoupdate");
1062 if (opts
->gpg_sign_opt
)
1063 argv_array_push(&am
.args
, opts
->gpg_sign_opt
);
1064 status
= run_command(&am
);
1065 unlink(rebased_patches
);
1066 free(rebased_patches
);
1069 return move_to_original_branch(opts
);
1072 if (is_directory(opts
->state_dir
))
1073 rebase_write_basic_state(opts
);
1078 static int run_specific_rebase(struct rebase_options
*opts
, enum action action
)
1080 const char *argv
[] = { NULL
, NULL
};
1081 struct strbuf script_snippet
= STRBUF_INIT
, buf
= STRBUF_INIT
;
1083 const char *backend
, *backend_func
;
1085 if (opts
->type
== REBASE_INTERACTIVE
) {
1086 /* Run builtin interactive rebase */
1087 setenv("GIT_CHERRY_PICK_HELP", resolvemsg
, 1);
1088 if (!(opts
->flags
& REBASE_INTERACTIVE_EXPLICIT
)) {
1089 setenv("GIT_SEQUENCE_EDITOR", ":", 1);
1090 opts
->autosquash
= 0;
1092 if (opts
->gpg_sign_opt
) {
1093 /* remove the leading "-S" */
1094 char *tmp
= xstrdup(opts
->gpg_sign_opt
+ 2);
1095 free(opts
->gpg_sign_opt
);
1096 opts
->gpg_sign_opt
= tmp
;
1099 status
= run_rebase_interactive(opts
, action
);
1100 goto finished_rebase
;
1103 if (opts
->type
== REBASE_AM
) {
1104 status
= run_am(opts
);
1105 goto finished_rebase
;
1108 add_var(&script_snippet
, "GIT_DIR", absolute_path(get_git_dir()));
1109 add_var(&script_snippet
, "state_dir", opts
->state_dir
);
1111 add_var(&script_snippet
, "upstream_name", opts
->upstream_name
);
1112 add_var(&script_snippet
, "upstream", opts
->upstream
?
1113 oid_to_hex(&opts
->upstream
->object
.oid
) : NULL
);
1114 add_var(&script_snippet
, "head_name",
1115 opts
->head_name
? opts
->head_name
: "detached HEAD");
1116 add_var(&script_snippet
, "orig_head", oid_to_hex(&opts
->orig_head
));
1117 add_var(&script_snippet
, "onto", opts
->onto
?
1118 oid_to_hex(&opts
->onto
->object
.oid
) : NULL
);
1119 add_var(&script_snippet
, "onto_name", opts
->onto_name
);
1120 add_var(&script_snippet
, "revisions", opts
->revisions
);
1121 add_var(&script_snippet
, "restrict_revision", opts
->restrict_revision
?
1122 oid_to_hex(&opts
->restrict_revision
->object
.oid
) : NULL
);
1123 add_var(&script_snippet
, "GIT_QUIET",
1124 opts
->flags
& REBASE_NO_QUIET
? "" : "t");
1125 sq_quote_argv_pretty(&buf
, opts
->git_am_opts
.argv
);
1126 add_var(&script_snippet
, "git_am_opt", buf
.buf
);
1127 strbuf_release(&buf
);
1128 add_var(&script_snippet
, "verbose",
1129 opts
->flags
& REBASE_VERBOSE
? "t" : "");
1130 add_var(&script_snippet
, "diffstat",
1131 opts
->flags
& REBASE_DIFFSTAT
? "t" : "");
1132 add_var(&script_snippet
, "force_rebase",
1133 opts
->flags
& REBASE_FORCE
? "t" : "");
1134 if (opts
->switch_to
)
1135 add_var(&script_snippet
, "switch_to", opts
->switch_to
);
1136 add_var(&script_snippet
, "action", opts
->action
? opts
->action
: "");
1137 add_var(&script_snippet
, "signoff", opts
->signoff
? "--signoff" : "");
1138 add_var(&script_snippet
, "allow_rerere_autoupdate",
1139 opts
->allow_rerere_autoupdate
?
1140 opts
->allow_rerere_autoupdate
== RERERE_AUTOUPDATE
?
1141 "--rerere-autoupdate" : "--no-rerere-autoupdate" : "");
1142 add_var(&script_snippet
, "keep_empty", opts
->keep_empty
? "yes" : "");
1143 add_var(&script_snippet
, "autosquash", opts
->autosquash
? "t" : "");
1144 add_var(&script_snippet
, "gpg_sign_opt", opts
->gpg_sign_opt
);
1145 add_var(&script_snippet
, "cmd", opts
->cmd
);
1146 add_var(&script_snippet
, "allow_empty_message",
1147 opts
->allow_empty_message
? "--allow-empty-message" : "");
1148 add_var(&script_snippet
, "rebase_merges",
1149 opts
->rebase_merges
? "t" : "");
1150 add_var(&script_snippet
, "rebase_cousins",
1151 opts
->rebase_cousins
? "t" : "");
1152 add_var(&script_snippet
, "strategy", opts
->strategy
);
1153 add_var(&script_snippet
, "strategy_opts", opts
->strategy_opts
);
1154 add_var(&script_snippet
, "rebase_root", opts
->root
? "t" : "");
1155 add_var(&script_snippet
, "squash_onto",
1156 opts
->squash_onto
? oid_to_hex(opts
->squash_onto
) : "");
1157 add_var(&script_snippet
, "git_format_patch_opt",
1158 opts
->git_format_patch_opt
.buf
);
1160 if (is_interactive(opts
) &&
1161 !(opts
->flags
& REBASE_INTERACTIVE_EXPLICIT
)) {
1162 strbuf_addstr(&script_snippet
,
1163 "GIT_SEQUENCE_EDITOR=:; export GIT_SEQUENCE_EDITOR; ");
1164 opts
->autosquash
= 0;
1167 switch (opts
->type
) {
1168 case REBASE_PRESERVE_MERGES
:
1169 backend
= "git-rebase--preserve-merges";
1170 backend_func
= "git_rebase__preserve_merges";
1173 BUG("Unhandled rebase type %d", opts
->type
);
1177 strbuf_addf(&script_snippet
,
1178 ". git-sh-setup && . %s && %s", backend
, backend_func
);
1179 argv
[0] = script_snippet
.buf
;
1181 status
= run_command_v_opt(argv
, RUN_USING_SHELL
);
1183 if (opts
->dont_finish_rebase
)
1185 else if (opts
->type
== REBASE_INTERACTIVE
)
1186 ; /* interactive rebase cleans up after itself */
1187 else if (status
== 0) {
1188 if (!file_exists(state_dir_path("stopped-sha", opts
)))
1189 finish_rebase(opts
);
1190 } else if (status
== 2) {
1191 struct strbuf dir
= STRBUF_INIT
;
1193 apply_autostash(opts
);
1194 strbuf_addstr(&dir
, opts
->state_dir
);
1195 remove_dir_recursively(&dir
, 0);
1196 strbuf_release(&dir
);
1197 die("Nothing to do");
1200 strbuf_release(&script_snippet
);
1202 return status
? -1 : 0;
1205 static int rebase_config(const char *var
, const char *value
, void *data
)
1207 struct rebase_options
*opts
= data
;
1209 if (!strcmp(var
, "rebase.stat")) {
1210 if (git_config_bool(var
, value
))
1211 opts
->flags
|= REBASE_DIFFSTAT
;
1213 opts
->flags
&= ~REBASE_DIFFSTAT
;
1217 if (!strcmp(var
, "rebase.autosquash")) {
1218 opts
->autosquash
= git_config_bool(var
, value
);
1222 if (!strcmp(var
, "commit.gpgsign")) {
1223 free(opts
->gpg_sign_opt
);
1224 opts
->gpg_sign_opt
= git_config_bool(var
, value
) ?
1225 xstrdup("-S") : NULL
;
1229 if (!strcmp(var
, "rebase.autostash")) {
1230 opts
->autostash
= git_config_bool(var
, value
);
1234 if (!strcmp(var
, "rebase.reschedulefailedexec")) {
1235 opts
->reschedule_failed_exec
= git_config_bool(var
, value
);
1239 if (!strcmp(var
, "rebase.usebuiltin")) {
1240 opts
->use_legacy_rebase
= !git_config_bool(var
, value
);
1244 return git_default_config(var
, value
, data
);
1248 * Determines whether the commits in from..to are linear, i.e. contain
1249 * no merge commits. This function *expects* `from` to be an ancestor of
1252 static int is_linear_history(struct commit
*from
, struct commit
*to
)
1254 while (to
&& to
!= from
) {
1258 if (to
->parents
->next
)
1260 to
= to
->parents
->item
;
1265 static int can_fast_forward(struct commit
*onto
, struct commit
*upstream
,
1266 struct commit
*restrict_revision
,
1267 struct object_id
*head_oid
, struct object_id
*merge_base
)
1269 struct commit
*head
= lookup_commit(the_repository
, head_oid
);
1270 struct commit_list
*merge_bases
= NULL
;
1276 merge_bases
= get_merge_bases(onto
, head
);
1277 if (!merge_bases
|| merge_bases
->next
) {
1278 oidcpy(merge_base
, &null_oid
);
1282 oidcpy(merge_base
, &merge_bases
->item
->object
.oid
);
1283 if (!oideq(merge_base
, &onto
->object
.oid
))
1286 if (restrict_revision
&& !oideq(&restrict_revision
->object
.oid
, merge_base
))
1292 free_commit_list(merge_bases
);
1293 merge_bases
= get_merge_bases(upstream
, head
);
1294 if (!merge_bases
|| merge_bases
->next
)
1297 if (!oideq(&onto
->object
.oid
, &merge_bases
->item
->object
.oid
))
1303 free_commit_list(merge_bases
);
1304 return res
&& is_linear_history(onto
, head
);
1307 /* -i followed by -m is still -i */
1308 static int parse_opt_merge(const struct option
*opt
, const char *arg
, int unset
)
1310 struct rebase_options
*opts
= opt
->value
;
1312 BUG_ON_OPT_NEG(unset
);
1313 BUG_ON_OPT_ARG(arg
);
1315 if (!is_interactive(opts
))
1316 opts
->type
= REBASE_MERGE
;
1321 /* -i followed by -p is still explicitly interactive, but -p alone is not */
1322 static int parse_opt_interactive(const struct option
*opt
, const char *arg
,
1325 struct rebase_options
*opts
= opt
->value
;
1327 BUG_ON_OPT_NEG(unset
);
1328 BUG_ON_OPT_ARG(arg
);
1330 opts
->type
= REBASE_INTERACTIVE
;
1331 opts
->flags
|= REBASE_INTERACTIVE_EXPLICIT
;
1336 static void NORETURN
error_on_missing_default_upstream(void)
1338 struct branch
*current_branch
= branch_get(NULL
);
1341 "Please specify which branch you want to rebase against.\n"
1342 "See git-rebase(1) for details.\n"
1344 " git rebase '<branch>'\n"
1346 current_branch
? _("There is no tracking information for "
1347 "the current branch.") :
1348 _("You are not currently on a branch."));
1350 if (current_branch
) {
1351 const char *remote
= current_branch
->remote_name
;
1354 remote
= _("<remote>");
1356 printf(_("If you wish to set tracking information for this "
1357 "branch you can do so with:\n"
1359 " git branch --set-upstream-to=%s/<branch> %s\n"
1361 remote
, current_branch
->name
);
1366 static void set_reflog_action(struct rebase_options
*options
)
1369 struct strbuf buf
= STRBUF_INIT
;
1371 if (!is_interactive(options
))
1374 env
= getenv(GIT_REFLOG_ACTION_ENVIRONMENT
);
1375 if (env
&& strcmp("rebase", env
))
1376 return; /* only override it if it is "rebase" */
1378 strbuf_addf(&buf
, "rebase -i (%s)", options
->action
);
1379 setenv(GIT_REFLOG_ACTION_ENVIRONMENT
, buf
.buf
, 1);
1380 strbuf_release(&buf
);
1383 static int check_exec_cmd(const char *cmd
)
1385 if (strchr(cmd
, '\n'))
1386 return error(_("exec commands cannot contain newlines"));
1388 /* Does the command consist purely of whitespace? */
1389 if (!cmd
[strspn(cmd
, " \t\r\f\v")])
1390 return error(_("empty exec command"));
1396 int cmd_rebase(int argc
, const char **argv
, const char *prefix
)
1398 struct rebase_options options
= REBASE_OPTIONS_INIT
;
1399 const char *branch_name
;
1400 int ret
, flags
, total_argc
, in_progress
= 0;
1402 int ok_to_skip_pre_rebase
= 0;
1403 struct strbuf msg
= STRBUF_INIT
;
1404 struct strbuf revisions
= STRBUF_INIT
;
1405 struct strbuf buf
= STRBUF_INIT
;
1406 struct object_id merge_base
;
1407 enum action action
= ACTION_NONE
;
1408 const char *gpg_sign
= NULL
;
1409 struct string_list exec
= STRING_LIST_INIT_NODUP
;
1410 const char *rebase_merges
= NULL
;
1411 int fork_point
= -1;
1412 struct string_list strategy_options
= STRING_LIST_INIT_NODUP
;
1413 struct object_id squash_onto
;
1414 char *squash_onto_name
= NULL
;
1415 int reschedule_failed_exec
= -1;
1416 struct option builtin_rebase_options
[] = {
1417 OPT_STRING(0, "onto", &options
.onto_name
,
1419 N_("rebase onto given branch instead of upstream")),
1420 OPT_BOOL(0, "keep-base", &keep_base
,
1421 N_("use the merge-base of upstream and branch as the current base")),
1422 OPT_BOOL(0, "no-verify", &ok_to_skip_pre_rebase
,
1423 N_("allow pre-rebase hook to run")),
1424 OPT_NEGBIT('q', "quiet", &options
.flags
,
1425 N_("be quiet. implies --no-stat"),
1426 REBASE_NO_QUIET
| REBASE_VERBOSE
| REBASE_DIFFSTAT
),
1427 OPT_BIT('v', "verbose", &options
.flags
,
1428 N_("display a diffstat of what changed upstream"),
1429 REBASE_NO_QUIET
| REBASE_VERBOSE
| REBASE_DIFFSTAT
),
1430 {OPTION_NEGBIT
, 'n', "no-stat", &options
.flags
, NULL
,
1431 N_("do not show diffstat of what changed upstream"),
1432 PARSE_OPT_NOARG
, NULL
, REBASE_DIFFSTAT
},
1433 OPT_BOOL(0, "signoff", &options
.signoff
,
1434 N_("add a Signed-off-by: line to each commit")),
1435 OPT_PASSTHRU_ARGV(0, "ignore-whitespace", &options
.git_am_opts
,
1436 NULL
, N_("passed to 'git am'"),
1438 OPT_PASSTHRU_ARGV(0, "committer-date-is-author-date",
1439 &options
.git_am_opts
, NULL
,
1440 N_("passed to 'git am'"), PARSE_OPT_NOARG
),
1441 OPT_PASSTHRU_ARGV(0, "ignore-date", &options
.git_am_opts
, NULL
,
1442 N_("passed to 'git am'"), PARSE_OPT_NOARG
),
1443 OPT_PASSTHRU_ARGV('C', NULL
, &options
.git_am_opts
, N_("n"),
1444 N_("passed to 'git apply'"), 0),
1445 OPT_PASSTHRU_ARGV(0, "whitespace", &options
.git_am_opts
,
1446 N_("action"), N_("passed to 'git apply'"), 0),
1447 OPT_BIT('f', "force-rebase", &options
.flags
,
1448 N_("cherry-pick all commits, even if unchanged"),
1450 OPT_BIT(0, "no-ff", &options
.flags
,
1451 N_("cherry-pick all commits, even if unchanged"),
1453 OPT_CMDMODE(0, "continue", &action
, N_("continue"),
1455 OPT_CMDMODE(0, "skip", &action
,
1456 N_("skip current patch and continue"), ACTION_SKIP
),
1457 OPT_CMDMODE(0, "abort", &action
,
1458 N_("abort and check out the original branch"),
1460 OPT_CMDMODE(0, "quit", &action
,
1461 N_("abort but keep HEAD where it is"), ACTION_QUIT
),
1462 OPT_CMDMODE(0, "edit-todo", &action
, N_("edit the todo list "
1463 "during an interactive rebase"), ACTION_EDIT_TODO
),
1464 OPT_CMDMODE(0, "show-current-patch", &action
,
1465 N_("show the patch file being applied or merged"),
1466 ACTION_SHOW_CURRENT_PATCH
),
1467 { OPTION_CALLBACK
, 'm', "merge", &options
, NULL
,
1468 N_("use merging strategies to rebase"),
1469 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
,
1471 { OPTION_CALLBACK
, 'i', "interactive", &options
, NULL
,
1472 N_("let the user edit the list of commits to rebase"),
1473 PARSE_OPT_NOARG
| PARSE_OPT_NONEG
,
1474 parse_opt_interactive
},
1475 OPT_SET_INT_F('p', "preserve-merges", &options
.type
,
1476 N_("(DEPRECATED) try to recreate merges instead of "
1478 REBASE_PRESERVE_MERGES
, PARSE_OPT_HIDDEN
),
1479 OPT_RERERE_AUTOUPDATE(&options
.allow_rerere_autoupdate
),
1480 OPT_BOOL('k', "keep-empty", &options
.keep_empty
,
1481 N_("preserve empty commits during rebase")),
1482 OPT_BOOL(0, "autosquash", &options
.autosquash
,
1483 N_("move commits that begin with "
1484 "squash!/fixup! under -i")),
1485 { OPTION_STRING
, 'S', "gpg-sign", &gpg_sign
, N_("key-id"),
1486 N_("GPG-sign commits"),
1487 PARSE_OPT_OPTARG
, NULL
, (intptr_t) "" },
1488 OPT_BOOL(0, "autostash", &options
.autostash
,
1489 N_("automatically stash/stash pop before and after")),
1490 OPT_STRING_LIST('x', "exec", &exec
, N_("exec"),
1491 N_("add exec lines after each commit of the "
1493 OPT_BOOL(0, "allow-empty-message",
1494 &options
.allow_empty_message
,
1495 N_("allow rebasing commits with empty messages")),
1496 {OPTION_STRING
, 'r', "rebase-merges", &rebase_merges
,
1498 N_("try to rebase merges instead of skipping them"),
1499 PARSE_OPT_OPTARG
, NULL
, (intptr_t)""},
1500 OPT_BOOL(0, "fork-point", &fork_point
,
1501 N_("use 'merge-base --fork-point' to refine upstream")),
1502 OPT_STRING('s', "strategy", &options
.strategy
,
1503 N_("strategy"), N_("use the given merge strategy")),
1504 OPT_STRING_LIST('X', "strategy-option", &strategy_options
,
1506 N_("pass the argument through to the merge "
1508 OPT_BOOL(0, "root", &options
.root
,
1509 N_("rebase all reachable commits up to the root(s)")),
1510 OPT_BOOL(0, "reschedule-failed-exec",
1511 &reschedule_failed_exec
,
1512 N_("automatically re-schedule any `exec` that fails")),
1517 if (argc
== 2 && !strcmp(argv
[1], "-h"))
1518 usage_with_options(builtin_rebase_usage
,
1519 builtin_rebase_options
);
1521 options
.allow_empty_message
= 1;
1522 git_config(rebase_config
, &options
);
1524 if (options
.use_legacy_rebase
||
1525 !git_env_bool("GIT_TEST_REBASE_USE_BUILTIN", -1))
1526 warning(_("the rebase.useBuiltin support has been removed!\n"
1527 "See its entry in 'git help config' for details."));
1530 strbuf_addf(&buf
, "%s/applying", apply_dir());
1531 if(file_exists(buf
.buf
))
1532 die(_("It looks like 'git am' is in progress. Cannot rebase."));
1534 if (is_directory(apply_dir())) {
1535 options
.type
= REBASE_AM
;
1536 options
.state_dir
= apply_dir();
1537 } else if (is_directory(merge_dir())) {
1539 strbuf_addf(&buf
, "%s/rewritten", merge_dir());
1540 if (is_directory(buf
.buf
)) {
1541 options
.type
= REBASE_PRESERVE_MERGES
;
1542 options
.flags
|= REBASE_INTERACTIVE_EXPLICIT
;
1545 strbuf_addf(&buf
, "%s/interactive", merge_dir());
1546 if(file_exists(buf
.buf
)) {
1547 options
.type
= REBASE_INTERACTIVE
;
1548 options
.flags
|= REBASE_INTERACTIVE_EXPLICIT
;
1550 options
.type
= REBASE_MERGE
;
1552 options
.state_dir
= merge_dir();
1555 if (options
.type
!= REBASE_UNSPECIFIED
)
1559 argc
= parse_options(argc
, argv
, prefix
,
1560 builtin_rebase_options
,
1561 builtin_rebase_usage
, 0);
1563 if (action
!= ACTION_NONE
&& total_argc
!= 2) {
1564 usage_with_options(builtin_rebase_usage
,
1565 builtin_rebase_options
);
1569 usage_with_options(builtin_rebase_usage
,
1570 builtin_rebase_options
);
1572 if (options
.type
== REBASE_PRESERVE_MERGES
)
1573 warning(_("git rebase --preserve-merges is deprecated. "
1574 "Use --rebase-merges instead."));
1577 if (options
.onto_name
)
1578 die(_("cannot combine '--keep-base' with '--onto'"));
1580 die(_("cannot combine '--keep-base' with '--root'"));
1583 if (action
!= ACTION_NONE
&& !in_progress
)
1584 die(_("No rebase in progress?"));
1585 setenv(GIT_REFLOG_ACTION_ENVIRONMENT
, "rebase", 0);
1587 if (action
== ACTION_EDIT_TODO
&& !is_interactive(&options
))
1588 die(_("The --edit-todo action can only be used during "
1589 "interactive rebase."));
1591 if (trace2_is_enabled()) {
1592 if (is_interactive(&options
))
1593 trace2_cmd_mode("interactive");
1595 trace2_cmd_mode("interactive-exec");
1597 trace2_cmd_mode(action_names
[action
]);
1601 case ACTION_CONTINUE
: {
1602 struct object_id head
;
1603 struct lock_file lock_file
= LOCK_INIT
;
1606 options
.action
= "continue";
1607 set_reflog_action(&options
);
1610 if (get_oid("HEAD", &head
))
1611 die(_("Cannot read HEAD"));
1613 fd
= hold_locked_index(&lock_file
, 0);
1614 if (repo_read_index(the_repository
) < 0)
1615 die(_("could not read index"));
1616 refresh_index(the_repository
->index
, REFRESH_QUIET
, NULL
, NULL
,
1619 repo_update_index_if_able(the_repository
, &lock_file
);
1620 rollback_lock_file(&lock_file
);
1622 if (has_unstaged_changes(the_repository
, 1)) {
1623 puts(_("You must edit all merge conflicts and then\n"
1624 "mark them as resolved using git add"));
1627 if (read_basic_state(&options
))
1632 struct string_list merge_rr
= STRING_LIST_INIT_DUP
;
1634 options
.action
= "skip";
1635 set_reflog_action(&options
);
1637 rerere_clear(the_repository
, &merge_rr
);
1638 string_list_clear(&merge_rr
, 1);
1640 if (reset_head(NULL
, "reset", NULL
, RESET_HEAD_HARD
,
1642 die(_("could not discard worktree changes"));
1643 remove_branch_state(the_repository
, 0);
1644 if (read_basic_state(&options
))
1648 case ACTION_ABORT
: {
1649 struct string_list merge_rr
= STRING_LIST_INIT_DUP
;
1650 options
.action
= "abort";
1651 set_reflog_action(&options
);
1653 rerere_clear(the_repository
, &merge_rr
);
1654 string_list_clear(&merge_rr
, 1);
1656 if (read_basic_state(&options
))
1658 if (reset_head(&options
.orig_head
, "reset",
1659 options
.head_name
, RESET_HEAD_HARD
,
1661 die(_("could not move back to %s"),
1662 oid_to_hex(&options
.orig_head
));
1663 remove_branch_state(the_repository
, 0);
1664 ret
= !!finish_rebase(&options
);
1668 if (options
.type
== REBASE_INTERACTIVE
) {
1669 struct replay_opts replay
= REPLAY_OPTS_INIT
;
1671 replay
.action
= REPLAY_INTERACTIVE_REBASE
;
1672 ret
= !!sequencer_remove_state(&replay
);
1675 strbuf_addstr(&buf
, options
.state_dir
);
1676 ret
= !!remove_dir_recursively(&buf
, 0);
1678 error(_("could not remove '%s'"),
1683 case ACTION_EDIT_TODO
:
1684 options
.action
= "edit-todo";
1685 options
.dont_finish_rebase
= 1;
1687 case ACTION_SHOW_CURRENT_PATCH
:
1688 options
.action
= "show-current-patch";
1689 options
.dont_finish_rebase
= 1;
1694 BUG("action: %d", action
);
1697 /* Make sure no rebase is in progress */
1699 const char *last_slash
= strrchr(options
.state_dir
, '/');
1700 const char *state_dir_base
=
1701 last_slash
? last_slash
+ 1 : options
.state_dir
;
1702 const char *cmd_live_rebase
=
1703 "git rebase (--continue | --abort | --skip)";
1705 strbuf_addf(&buf
, "rm -fr \"%s\"", options
.state_dir
);
1706 die(_("It seems that there is already a %s directory, and\n"
1707 "I wonder if you are in the middle of another rebase. "
1709 "case, please try\n\t%s\n"
1710 "If that is not the case, please\n\t%s\n"
1711 "and run me again. I am stopping in case you still "
1713 "valuable there.\n"),
1714 state_dir_base
, cmd_live_rebase
, buf
.buf
);
1717 for (i
= 0; i
< options
.git_am_opts
.argc
; i
++) {
1718 const char *option
= options
.git_am_opts
.argv
[i
], *p
;
1719 if (!strcmp(option
, "--committer-date-is-author-date") ||
1720 !strcmp(option
, "--ignore-date") ||
1721 !strcmp(option
, "--whitespace=fix") ||
1722 !strcmp(option
, "--whitespace=strip"))
1723 options
.flags
|= REBASE_FORCE
;
1724 else if (skip_prefix(option
, "-C", &p
)) {
1726 if (!isdigit(*(p
++)))
1727 die(_("switch `C' expects a "
1728 "numerical value"));
1729 } else if (skip_prefix(option
, "--whitespace=", &p
)) {
1730 if (*p
&& strcmp(p
, "warn") && strcmp(p
, "nowarn") &&
1731 strcmp(p
, "error") && strcmp(p
, "error-all"))
1732 die("Invalid whitespace option: '%s'", p
);
1736 for (i
= 0; i
< exec
.nr
; i
++)
1737 if (check_exec_cmd(exec
.items
[i
].string
))
1740 if (!(options
.flags
& REBASE_NO_QUIET
))
1741 argv_array_push(&options
.git_am_opts
, "-q");
1743 if (options
.keep_empty
)
1744 imply_interactive(&options
, "--keep-empty");
1747 free(options
.gpg_sign_opt
);
1748 options
.gpg_sign_opt
= xstrfmt("-S%s", gpg_sign
);
1754 imply_interactive(&options
, "--exec");
1757 for (i
= 0; i
< exec
.nr
; i
++)
1758 strbuf_addf(&buf
, "exec %s\n", exec
.items
[i
].string
);
1759 options
.cmd
= xstrdup(buf
.buf
);
1762 if (rebase_merges
) {
1763 if (!*rebase_merges
)
1764 ; /* default mode; do nothing */
1765 else if (!strcmp("rebase-cousins", rebase_merges
))
1766 options
.rebase_cousins
= 1;
1767 else if (strcmp("no-rebase-cousins", rebase_merges
))
1768 die(_("Unknown mode: %s"), rebase_merges
);
1769 options
.rebase_merges
= 1;
1770 imply_interactive(&options
, "--rebase-merges");
1773 if (strategy_options
.nr
) {
1776 if (!options
.strategy
)
1777 options
.strategy
= "recursive";
1780 for (i
= 0; i
< strategy_options
.nr
; i
++)
1781 strbuf_addf(&buf
, " --%s",
1782 strategy_options
.items
[i
].string
);
1783 options
.strategy_opts
= xstrdup(buf
.buf
);
1786 if (options
.strategy
) {
1787 options
.strategy
= xstrdup(options
.strategy
);
1788 switch (options
.type
) {
1790 die(_("--strategy requires --merge or --interactive"));
1792 case REBASE_INTERACTIVE
:
1793 case REBASE_PRESERVE_MERGES
:
1796 case REBASE_UNSPECIFIED
:
1797 options
.type
= REBASE_MERGE
;
1800 BUG("unhandled rebase type (%d)", options
.type
);
1804 if (options
.type
== REBASE_MERGE
)
1805 imply_interactive(&options
, "--merge");
1807 if (options
.root
&& !options
.onto_name
)
1808 imply_interactive(&options
, "--root without --onto");
1810 if (isatty(2) && options
.flags
& REBASE_NO_QUIET
)
1811 strbuf_addstr(&options
.git_format_patch_opt
, " --progress");
1813 switch (options
.type
) {
1815 case REBASE_INTERACTIVE
:
1816 case REBASE_PRESERVE_MERGES
:
1817 options
.state_dir
= merge_dir();
1820 options
.state_dir
= apply_dir();
1823 /* the default rebase backend is `--am` */
1824 options
.type
= REBASE_AM
;
1825 options
.state_dir
= apply_dir();
1829 if (reschedule_failed_exec
> 0 && !is_interactive(&options
))
1830 die(_("--reschedule-failed-exec requires "
1831 "--exec or --interactive"));
1832 if (reschedule_failed_exec
>= 0)
1833 options
.reschedule_failed_exec
= reschedule_failed_exec
;
1835 if (options
.git_am_opts
.argc
) {
1836 /* all am options except -q are compatible only with --am */
1837 for (i
= options
.git_am_opts
.argc
- 1; i
>= 0; i
--)
1838 if (strcmp(options
.git_am_opts
.argv
[i
], "-q"))
1841 if (is_interactive(&options
) && i
>= 0)
1842 die(_("cannot combine am options with either "
1843 "interactive or merge options"));
1846 if (options
.signoff
) {
1847 if (options
.type
== REBASE_PRESERVE_MERGES
)
1848 die("cannot combine '--signoff' with "
1849 "'--preserve-merges'");
1850 argv_array_push(&options
.git_am_opts
, "--signoff");
1851 options
.flags
|= REBASE_FORCE
;
1854 if (options
.type
== REBASE_PRESERVE_MERGES
) {
1856 * Note: incompatibility with --signoff handled in signoff block above
1857 * Note: incompatibility with --interactive is just a strong warning;
1858 * git-rebase.txt caveats with "unless you know what you are doing"
1860 if (options
.rebase_merges
)
1861 die(_("cannot combine '--preserve-merges' with "
1862 "'--rebase-merges'"));
1864 if (options
.reschedule_failed_exec
)
1865 die(_("error: cannot combine '--preserve-merges' with "
1866 "'--reschedule-failed-exec'"));
1869 if (!options
.root
) {
1871 struct branch
*branch
;
1873 branch
= branch_get(NULL
);
1874 options
.upstream_name
= branch_get_upstream(branch
,
1876 if (!options
.upstream_name
)
1877 error_on_missing_default_upstream();
1881 options
.upstream_name
= argv
[0];
1884 if (!strcmp(options
.upstream_name
, "-"))
1885 options
.upstream_name
= "@{-1}";
1887 options
.upstream
= peel_committish(options
.upstream_name
);
1888 if (!options
.upstream
)
1889 die(_("invalid upstream '%s'"), options
.upstream_name
);
1890 options
.upstream_arg
= options
.upstream_name
;
1892 if (!options
.onto_name
) {
1893 if (commit_tree("", 0, the_hash_algo
->empty_tree
, NULL
,
1894 &squash_onto
, NULL
, NULL
) < 0)
1895 die(_("Could not create new root commit"));
1896 options
.squash_onto
= &squash_onto
;
1897 options
.onto_name
= squash_onto_name
=
1898 xstrdup(oid_to_hex(&squash_onto
));
1900 options
.root_with_onto
= 1;
1902 options
.upstream_name
= NULL
;
1903 options
.upstream
= NULL
;
1905 usage_with_options(builtin_rebase_usage
,
1906 builtin_rebase_options
);
1907 options
.upstream_arg
= "--root";
1910 /* Make sure the branch to rebase onto is valid. */
1913 strbuf_addstr(&buf
, options
.upstream_name
);
1914 strbuf_addstr(&buf
, "...");
1915 options
.onto_name
= xstrdup(buf
.buf
);
1916 } else if (!options
.onto_name
)
1917 options
.onto_name
= options
.upstream_name
;
1918 if (strstr(options
.onto_name
, "...")) {
1919 if (get_oid_mb(options
.onto_name
, &merge_base
) < 0) {
1921 die(_("'%s': need exactly one merge base with branch"),
1922 options
.upstream_name
);
1924 die(_("'%s': need exactly one merge base"),
1927 options
.onto
= lookup_commit_or_die(&merge_base
,
1930 options
.onto
= peel_committish(options
.onto_name
);
1932 die(_("Does not point to a valid commit '%s'"),
1937 * If the branch to rebase is given, that is the branch we will rebase
1938 * branch_name -- branch/commit being rebased, or
1939 * HEAD (already detached)
1940 * orig_head -- commit object name of tip of the branch before rebasing
1941 * head_name -- refs/heads/<that-branch> or NULL (detached HEAD)
1944 /* Is it "rebase other branchname" or "rebase other commit"? */
1945 branch_name
= argv
[0];
1946 options
.switch_to
= argv
[0];
1948 /* Is it a local branch? */
1950 strbuf_addf(&buf
, "refs/heads/%s", branch_name
);
1951 if (!read_ref(buf
.buf
, &options
.orig_head
))
1952 options
.head_name
= xstrdup(buf
.buf
);
1953 /* If not is it a valid ref (branch or commit)? */
1954 else if (!get_oid(branch_name
, &options
.orig_head
))
1955 options
.head_name
= NULL
;
1957 die(_("fatal: no such branch/commit '%s'"),
1959 } else if (argc
== 0) {
1960 /* Do not need to switch branches, we are already on it. */
1962 xstrdup_or_null(resolve_ref_unsafe("HEAD", 0, NULL
,
1964 if (!options
.head_name
)
1965 die(_("No such ref: %s"), "HEAD");
1966 if (flags
& REF_ISSYMREF
) {
1967 if (!skip_prefix(options
.head_name
,
1968 "refs/heads/", &branch_name
))
1969 branch_name
= options
.head_name
;
1972 FREE_AND_NULL(options
.head_name
);
1973 branch_name
= "HEAD";
1975 if (get_oid("HEAD", &options
.orig_head
))
1976 die(_("Could not resolve HEAD to a revision"));
1978 BUG("unexpected number of arguments left to parse");
1980 if (fork_point
> 0) {
1981 struct commit
*head
=
1982 lookup_commit_reference(the_repository
,
1983 &options
.orig_head
);
1984 options
.restrict_revision
=
1985 get_fork_point(options
.upstream_name
, head
);
1988 if (repo_read_index(the_repository
) < 0)
1989 die(_("could not read index"));
1991 if (options
.autostash
) {
1992 struct lock_file lock_file
= LOCK_INIT
;
1995 fd
= hold_locked_index(&lock_file
, 0);
1996 refresh_cache(REFRESH_QUIET
);
1998 repo_update_index_if_able(the_repository
, &lock_file
);
1999 rollback_lock_file(&lock_file
);
2001 if (has_unstaged_changes(the_repository
, 1) ||
2002 has_uncommitted_changes(the_repository
, 1)) {
2003 const char *autostash
=
2004 state_dir_path("autostash", &options
);
2005 struct child_process stash
= CHILD_PROCESS_INIT
;
2006 struct object_id oid
;
2008 argv_array_pushl(&stash
.args
,
2009 "stash", "create", "autostash", NULL
);
2013 if (capture_command(&stash
, &buf
, GIT_MAX_HEXSZ
))
2014 die(_("Cannot autostash"));
2015 strbuf_trim_trailing_newline(&buf
);
2016 if (get_oid(buf
.buf
, &oid
))
2017 die(_("Unexpected stash response: '%s'"),
2020 strbuf_add_unique_abbrev(&buf
, &oid
, DEFAULT_ABBREV
);
2022 if (safe_create_leading_directories_const(autostash
))
2023 die(_("Could not create directory for '%s'"),
2025 write_file(autostash
, "%s", oid_to_hex(&oid
));
2026 printf(_("Created autostash: %s\n"), buf
.buf
);
2027 if (reset_head(NULL
, "reset --hard",
2028 NULL
, RESET_HEAD_HARD
, NULL
, NULL
) < 0)
2029 die(_("could not reset --hard"));
2031 if (discard_index(the_repository
->index
) < 0 ||
2032 repo_read_index(the_repository
) < 0)
2033 die(_("could not read index"));
2037 if (require_clean_work_tree(the_repository
, "rebase",
2038 _("Please commit or stash them."), 1, 1)) {
2044 * Now we are rebasing commits upstream..orig_head (or with --root,
2045 * everything leading up to orig_head) on top of onto.
2049 * Check if we are already based on onto with linear history,
2050 * in which case we could fast-forward without replacing the commits
2051 * with new commits recreated by replaying their changes. This
2052 * optimization must not be done if this is an interactive rebase.
2054 if (can_fast_forward(options
.onto
, options
.upstream
, options
.restrict_revision
,
2055 &options
.orig_head
, &merge_base
) &&
2056 !is_interactive(&options
)) {
2059 if (!(options
.flags
& REBASE_FORCE
)) {
2060 /* Lazily switch to the target branch if needed... */
2061 if (options
.switch_to
) {
2062 struct object_id oid
;
2064 if (get_oid(options
.switch_to
, &oid
) < 0) {
2065 ret
= !!error(_("could not parse '%s'"),
2071 strbuf_addf(&buf
, "%s: checkout %s",
2072 getenv(GIT_REFLOG_ACTION_ENVIRONMENT
),
2074 if (reset_head(&oid
, "checkout",
2076 RESET_HEAD_RUN_POST_CHECKOUT_HOOK
,
2077 NULL
, buf
.buf
) < 0) {
2078 ret
= !!error(_("could not switch to "
2085 if (!(options
.flags
& REBASE_NO_QUIET
))
2087 else if (!strcmp(branch_name
, "HEAD") &&
2088 resolve_ref_unsafe("HEAD", 0, NULL
, &flag
))
2089 puts(_("HEAD is up to date."));
2091 printf(_("Current branch %s is up to date.\n"),
2093 ret
= !!finish_rebase(&options
);
2095 } else if (!(options
.flags
& REBASE_NO_QUIET
))
2097 else if (!strcmp(branch_name
, "HEAD") &&
2098 resolve_ref_unsafe("HEAD", 0, NULL
, &flag
))
2099 puts(_("HEAD is up to date, rebase forced."));
2101 printf(_("Current branch %s is up to date, rebase "
2102 "forced.\n"), branch_name
);
2105 /* If a hook exists, give it a chance to interrupt*/
2106 if (!ok_to_skip_pre_rebase
&&
2107 run_hook_le(NULL
, "pre-rebase", options
.upstream_arg
,
2108 argc
? argv
[0] : NULL
, NULL
))
2109 die(_("The pre-rebase hook refused to rebase."));
2111 if (options
.flags
& REBASE_DIFFSTAT
) {
2112 struct diff_options opts
;
2114 if (options
.flags
& REBASE_VERBOSE
) {
2115 if (is_null_oid(&merge_base
))
2116 printf(_("Changes to %s:\n"),
2117 oid_to_hex(&options
.onto
->object
.oid
));
2119 printf(_("Changes from %s to %s:\n"),
2120 oid_to_hex(&merge_base
),
2121 oid_to_hex(&options
.onto
->object
.oid
));
2124 /* We want color (if set), but no pager */
2126 opts
.stat_width
= -1; /* use full terminal width */
2127 opts
.stat_graph_width
= -1; /* respect statGraphWidth config */
2128 opts
.output_format
|=
2129 DIFF_FORMAT_SUMMARY
| DIFF_FORMAT_DIFFSTAT
;
2130 opts
.detect_rename
= DIFF_DETECT_RENAME
;
2131 diff_setup_done(&opts
);
2132 diff_tree_oid(is_null_oid(&merge_base
) ?
2133 the_hash_algo
->empty_tree
: &merge_base
,
2134 &options
.onto
->object
.oid
, "", &opts
);
2135 diffcore_std(&opts
);
2139 if (is_interactive(&options
))
2142 /* Detach HEAD and reset the tree */
2143 if (options
.flags
& REBASE_NO_QUIET
)
2144 printf(_("First, rewinding head to replay your work on top of "
2147 strbuf_addf(&msg
, "%s: checkout %s",
2148 getenv(GIT_REFLOG_ACTION_ENVIRONMENT
), options
.onto_name
);
2149 if (reset_head(&options
.onto
->object
.oid
, "checkout", NULL
,
2150 RESET_HEAD_DETACH
| RESET_ORIG_HEAD
|
2151 RESET_HEAD_RUN_POST_CHECKOUT_HOOK
,
2153 die(_("Could not detach HEAD"));
2154 strbuf_release(&msg
);
2157 * If the onto is a proper descendant of the tip of the branch, then
2158 * we just fast-forwarded.
2161 if (oideq(&merge_base
, &options
.orig_head
)) {
2162 printf(_("Fast-forwarded %s to %s.\n"),
2163 branch_name
, options
.onto_name
);
2164 strbuf_addf(&msg
, "rebase finished: %s onto %s",
2165 options
.head_name
? options
.head_name
: "detached HEAD",
2166 oid_to_hex(&options
.onto
->object
.oid
));
2167 reset_head(NULL
, "Fast-forwarded", options
.head_name
,
2168 RESET_HEAD_REFS_ONLY
, "HEAD", msg
.buf
);
2169 strbuf_release(&msg
);
2170 ret
= !!finish_rebase(&options
);
2174 strbuf_addf(&revisions
, "%s..%s",
2175 options
.root
? oid_to_hex(&options
.onto
->object
.oid
) :
2176 (options
.restrict_revision
?
2177 oid_to_hex(&options
.restrict_revision
->object
.oid
) :
2178 oid_to_hex(&options
.upstream
->object
.oid
)),
2179 oid_to_hex(&options
.orig_head
));
2181 options
.revisions
= revisions
.buf
;
2184 ret
= !!run_specific_rebase(&options
, action
);
2187 strbuf_release(&buf
);
2188 strbuf_release(&revisions
);
2189 free(options
.head_name
);
2190 free(options
.gpg_sign_opt
);
2192 free(squash_onto_name
);