]>
Commit | Line | Data |
---|---|---|
55071ea2 PK |
1 | /* |
2 | * "git rebase" builtin command | |
3 | * | |
4 | * Copyright (c) 2018 Pratik Karki | |
5 | */ | |
6 | ||
f8adbec9 | 7 | #define USE_THE_INDEX_COMPATIBILITY_MACROS |
55071ea2 PK |
8 | #include "builtin.h" |
9 | #include "run-command.h" | |
10 | #include "exec-cmd.h" | |
11 | #include "argv-array.h" | |
12 | #include "dir.h" | |
ac7f467f PK |
13 | #include "packfile.h" |
14 | #include "refs.h" | |
15 | #include "quote.h" | |
16 | #include "config.h" | |
17 | #include "cache-tree.h" | |
18 | #include "unpack-trees.h" | |
19 | #include "lockfile.h" | |
f28d40d3 | 20 | #include "parse-options.h" |
075bc852 | 21 | #include "commit.h" |
bff014da | 22 | #include "diff.h" |
e0333e5c | 23 | #include "wt-status.h" |
9a48a615 | 24 | #include "revision.h" |
e0720a38 | 25 | #include "commit-reach.h" |
122420c2 | 26 | #include "rerere.h" |
5aec9271 | 27 | #include "branch.h" |
0609b741 PW |
28 | #include "sequencer.h" |
29 | #include "rebase-interactive.h" | |
f28d40d3 PK |
30 | |
31 | static char const * const builtin_rebase_usage[] = { | |
32 | N_("git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] " | |
33 | "[<upstream>] [<branch>]"), | |
34 | N_("git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] " | |
35 | "--root [<branch>]"), | |
36 | N_("git rebase --continue | --abort | --skip | --edit-todo"), | |
37 | NULL | |
38 | }; | |
ac7f467f | 39 | |
0609b741 PW |
40 | static GIT_PATH_FUNC(path_squash_onto, "rebase-merge/squash-onto") |
41 | static GIT_PATH_FUNC(path_interactive, "rebase-merge/interactive") | |
ac7f467f PK |
42 | static GIT_PATH_FUNC(apply_dir, "rebase-apply") |
43 | static GIT_PATH_FUNC(merge_dir, "rebase-merge") | |
44 | ||
45 | enum rebase_type { | |
46 | REBASE_UNSPECIFIED = -1, | |
47 | REBASE_AM, | |
48 | REBASE_MERGE, | |
49 | REBASE_INTERACTIVE, | |
50 | REBASE_PRESERVE_MERGES | |
51 | }; | |
55071ea2 | 52 | |
73fdc535 PW |
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; | |
59 | char *head_name; | |
60 | struct object_id orig_head; | |
61 | struct commit *onto; | |
62 | const char *onto_name; | |
63 | const char *revisions; | |
64 | const char *switch_to; | |
65 | int root; | |
66 | struct object_id *squash_onto; | |
67 | struct commit *restrict_revision; | |
68 | int dont_finish_rebase; | |
69 | enum { | |
70 | REBASE_NO_QUIET = 1<<0, | |
71 | REBASE_VERBOSE = 1<<1, | |
72 | REBASE_DIFFSTAT = 1<<2, | |
73 | REBASE_FORCE = 1<<3, | |
74 | REBASE_INTERACTIVE_EXPLICIT = 1<<4, | |
75 | } flags; | |
76 | struct argv_array git_am_opts; | |
77 | const char *action; | |
78 | int signoff; | |
79 | int allow_rerere_autoupdate; | |
80 | int keep_empty; | |
81 | int autosquash; | |
82 | char *gpg_sign_opt; | |
83 | int autostash; | |
84 | char *cmd; | |
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 | }; | |
91 | ||
92 | #define REBASE_OPTIONS_INIT { \ | |
93 | .type = REBASE_UNSPECIFIED, \ | |
94 | .flags = REBASE_NO_QUIET, \ | |
95 | .git_am_opts = ARGV_ARRAY_INIT, \ | |
96 | .git_format_patch_opt = STRBUF_INIT \ | |
97 | } | |
98 | ||
99 | static struct replay_opts get_replay_opts(const struct rebase_options *opts) | |
100 | { | |
101 | struct replay_opts replay = REPLAY_OPTS_INIT; | |
102 | ||
103 | replay.action = REPLAY_INTERACTIVE_REBASE; | |
104 | sequencer_init_config(&replay); | |
105 | ||
106 | replay.signoff = opts->signoff; | |
107 | replay.allow_ff = !(opts->flags & REBASE_FORCE); | |
108 | if (opts->allow_rerere_autoupdate) | |
109 | replay.allow_rerere_auto = opts->allow_rerere_autoupdate; | |
110 | replay.allow_empty = 1; | |
111 | replay.allow_empty_message = opts->allow_empty_message; | |
112 | replay.verbose = opts->flags & REBASE_VERBOSE; | |
113 | replay.reschedule_failed_exec = opts->reschedule_failed_exec; | |
114 | replay.gpg_sign = xstrdup_or_null(opts->gpg_sign_opt); | |
115 | replay.strategy = opts->strategy; | |
116 | ||
117 | return replay; | |
118 | } | |
119 | ||
0609b741 PW |
120 | static int add_exec_commands(struct string_list *commands) |
121 | { | |
122 | const char *todo_file = rebase_path_todo(); | |
123 | struct todo_list todo_list = TODO_LIST_INIT; | |
124 | int res; | |
125 | ||
126 | if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0) | |
127 | return error_errno(_("could not read '%s'."), todo_file); | |
128 | ||
129 | if (todo_list_parse_insn_buffer(the_repository, todo_list.buf.buf, | |
130 | &todo_list)) { | |
131 | todo_list_release(&todo_list); | |
132 | return error(_("unusable todo list: '%s'"), todo_file); | |
133 | } | |
134 | ||
135 | todo_list_add_exec_commands(&todo_list, commands); | |
136 | res = todo_list_write_to_file(the_repository, &todo_list, | |
137 | todo_file, NULL, NULL, -1, 0); | |
138 | todo_list_release(&todo_list); | |
139 | ||
140 | if (res) | |
141 | return error_errno(_("could not write '%s'."), todo_file); | |
142 | return 0; | |
143 | } | |
144 | ||
145 | static int rearrange_squash_in_todo_file(void) | |
146 | { | |
147 | const char *todo_file = rebase_path_todo(); | |
148 | struct todo_list todo_list = TODO_LIST_INIT; | |
149 | int res = 0; | |
150 | ||
151 | if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0) | |
152 | return error_errno(_("could not read '%s'."), todo_file); | |
153 | if (todo_list_parse_insn_buffer(the_repository, todo_list.buf.buf, | |
154 | &todo_list)) { | |
155 | todo_list_release(&todo_list); | |
156 | return error(_("unusable todo list: '%s'"), todo_file); | |
157 | } | |
158 | ||
159 | res = todo_list_rearrange_squash(&todo_list); | |
160 | if (!res) | |
161 | res = todo_list_write_to_file(the_repository, &todo_list, | |
162 | todo_file, NULL, NULL, -1, 0); | |
163 | ||
164 | todo_list_release(&todo_list); | |
165 | ||
166 | if (res) | |
167 | return error_errno(_("could not write '%s'."), todo_file); | |
168 | return 0; | |
169 | } | |
170 | ||
171 | static int transform_todo_file(unsigned flags) | |
172 | { | |
173 | const char *todo_file = rebase_path_todo(); | |
174 | struct todo_list todo_list = TODO_LIST_INIT; | |
175 | int res; | |
176 | ||
177 | if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0) | |
178 | return error_errno(_("could not read '%s'."), todo_file); | |
179 | ||
180 | if (todo_list_parse_insn_buffer(the_repository, todo_list.buf.buf, | |
181 | &todo_list)) { | |
182 | todo_list_release(&todo_list); | |
183 | return error(_("unusable todo list: '%s'"), todo_file); | |
184 | } | |
185 | ||
186 | res = todo_list_write_to_file(the_repository, &todo_list, todo_file, | |
187 | NULL, NULL, -1, flags); | |
188 | todo_list_release(&todo_list); | |
189 | ||
190 | if (res) | |
191 | return error_errno(_("could not write '%s'."), todo_file); | |
192 | return 0; | |
193 | } | |
194 | ||
195 | static int edit_todo_file(unsigned flags) | |
196 | { | |
197 | const char *todo_file = rebase_path_todo(); | |
198 | struct todo_list todo_list = TODO_LIST_INIT, | |
199 | new_todo = TODO_LIST_INIT; | |
200 | int res = 0; | |
201 | ||
202 | if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0) | |
203 | return error_errno(_("could not read '%s'."), todo_file); | |
204 | ||
205 | strbuf_stripspace(&todo_list.buf, 1); | |
206 | res = edit_todo_list(the_repository, &todo_list, &new_todo, NULL, NULL, flags); | |
207 | if (!res && todo_list_write_to_file(the_repository, &new_todo, todo_file, | |
208 | NULL, NULL, -1, flags & ~(TODO_LIST_SHORTEN_IDS))) | |
209 | res = error_errno(_("could not write '%s'"), todo_file); | |
210 | ||
211 | todo_list_release(&todo_list); | |
212 | todo_list_release(&new_todo); | |
213 | ||
214 | return res; | |
215 | } | |
216 | ||
7d3488eb | 217 | static int get_revision_ranges(struct commit *upstream, struct commit *onto, |
0609b741 PW |
218 | const char **head_hash, |
219 | char **revisions, char **shortrevisions) | |
220 | { | |
7d3488eb PW |
221 | struct commit *base_rev = upstream ? upstream : onto; |
222 | const char *shorthead; | |
0609b741 PW |
223 | struct object_id orig_head; |
224 | ||
225 | if (get_oid("HEAD", &orig_head)) | |
226 | return error(_("no HEAD?")); | |
227 | ||
228 | *head_hash = find_unique_abbrev(&orig_head, GIT_MAX_HEXSZ); | |
7d3488eb PW |
229 | *revisions = xstrfmt("%s...%s", oid_to_hex(&base_rev->object.oid), |
230 | *head_hash); | |
0609b741 PW |
231 | |
232 | shorthead = find_unique_abbrev(&orig_head, DEFAULT_ABBREV); | |
233 | ||
234 | if (upstream) { | |
235 | const char *shortrev; | |
0609b741 | 236 | |
7d3488eb PW |
237 | shortrev = find_unique_abbrev(&base_rev->object.oid, |
238 | DEFAULT_ABBREV); | |
0609b741 PW |
239 | |
240 | *shortrevisions = xstrfmt("%s..%s", shortrev, shorthead); | |
241 | } else | |
242 | *shortrevisions = xstrdup(shorthead); | |
243 | ||
244 | return 0; | |
245 | } | |
246 | ||
247 | static int init_basic_state(struct replay_opts *opts, const char *head_name, | |
7d3488eb | 248 | struct commit *onto, const char *orig_head) |
0609b741 PW |
249 | { |
250 | FILE *interactive; | |
251 | ||
c44c2462 PW |
252 | if (!is_directory(merge_dir()) && mkdir_in_gitdir(merge_dir())) |
253 | return error_errno(_("could not create temporary %s"), merge_dir()); | |
0609b741 PW |
254 | |
255 | delete_reflog("REBASE_HEAD"); | |
256 | ||
257 | interactive = fopen(path_interactive(), "w"); | |
258 | if (!interactive) | |
259 | return error_errno(_("could not mark as interactive")); | |
260 | fclose(interactive); | |
261 | ||
262 | return write_basic_state(opts, head_name, onto, orig_head); | |
263 | } | |
264 | ||
265 | static int do_interactive_rebase(struct replay_opts *opts, unsigned flags, | |
7d3488eb PW |
266 | const char *switch_to, struct commit *upstream, |
267 | struct commit *onto, const char *onto_name, | |
33898531 | 268 | struct object_id *squash_onto, const char *head_name, |
7d3488eb | 269 | struct commit *restrict_revision, char *raw_strategies, |
0609b741 PW |
270 | struct string_list *commands, unsigned autosquash) |
271 | { | |
272 | int ret; | |
273 | const char *head_hash = NULL; | |
274 | char *revisions = NULL, *shortrevisions = NULL; | |
275 | struct argv_array make_script_args = ARGV_ARRAY_INIT; | |
276 | struct todo_list todo_list = TODO_LIST_INIT; | |
277 | ||
278 | if (prepare_branch_to_be_rebased(the_repository, opts, switch_to)) | |
279 | return -1; | |
280 | ||
281 | if (get_revision_ranges(upstream, onto, &head_hash, | |
282 | &revisions, &shortrevisions)) | |
283 | return -1; | |
284 | ||
285 | if (raw_strategies) | |
286 | parse_strategy_opts(opts, raw_strategies); | |
287 | ||
288 | if (init_basic_state(opts, head_name, onto, head_hash)) { | |
289 | free(revisions); | |
290 | free(shortrevisions); | |
291 | ||
292 | return -1; | |
293 | } | |
294 | ||
295 | if (!upstream && squash_onto) | |
33898531 PW |
296 | write_file(path_squash_onto(), "%s\n", |
297 | oid_to_hex(squash_onto)); | |
0609b741 PW |
298 | |
299 | argv_array_pushl(&make_script_args, "", revisions, NULL); | |
300 | if (restrict_revision) | |
7d3488eb PW |
301 | argv_array_push(&make_script_args, |
302 | oid_to_hex(&restrict_revision->object.oid)); | |
0609b741 PW |
303 | |
304 | ret = sequencer_make_script(the_repository, &todo_list.buf, | |
305 | make_script_args.argc, make_script_args.argv, | |
306 | flags); | |
307 | ||
308 | if (ret) | |
309 | error(_("could not generate todo list")); | |
310 | else { | |
311 | discard_cache(); | |
312 | if (todo_list_parse_insn_buffer(the_repository, todo_list.buf.buf, | |
313 | &todo_list)) | |
314 | BUG("unusable todo list"); | |
315 | ||
316 | ret = complete_action(the_repository, opts, flags, shortrevisions, onto_name, | |
317 | onto, head_hash, commands, autosquash, &todo_list); | |
318 | } | |
319 | ||
320 | free(revisions); | |
321 | free(shortrevisions); | |
322 | todo_list_release(&todo_list); | |
323 | argv_array_clear(&make_script_args); | |
324 | ||
325 | return ret; | |
326 | } | |
327 | ||
328 | static const char * const builtin_rebase_interactive_usage[] = { | |
329 | N_("git rebase--interactive [<options>]"), | |
330 | NULL | |
331 | }; | |
332 | ||
333 | int cmd_rebase__interactive(int argc, const char **argv, const char *prefix) | |
334 | { | |
73fdc535 PW |
335 | struct rebase_options opts = REBASE_OPTIONS_INIT; |
336 | unsigned flags = 0; | |
337 | int abbreviate_commands = 0, ret = 0; | |
33898531 | 338 | struct object_id squash_onto = null_oid; |
0609b741 | 339 | struct string_list commands = STRING_LIST_INIT_DUP; |
0609b741 PW |
340 | enum { |
341 | NONE = 0, CONTINUE, SKIP, EDIT_TODO, SHOW_CURRENT_PATCH, | |
342 | SHORTEN_OIDS, EXPAND_OIDS, CHECK_TODO_LIST, REARRANGE_SQUASH, ADD_EXEC | |
343 | } command = 0; | |
344 | struct option options[] = { | |
73fdc535 PW |
345 | OPT_NEGBIT(0, "ff", &opts.flags, N_("allow fast-forward"), |
346 | REBASE_FORCE), | |
347 | OPT_BOOL(0, "keep-empty", &opts.keep_empty, N_("keep empty commits")), | |
0609b741 PW |
348 | OPT_BOOL(0, "allow-empty-message", &opts.allow_empty_message, |
349 | N_("allow commits with empty messages")), | |
73fdc535 PW |
350 | OPT_BOOL(0, "rebase-merges", &opts.rebase_merges, N_("rebase merge commits")), |
351 | OPT_BOOL(0, "rebase-cousins", &opts.rebase_cousins, | |
0609b741 | 352 | N_("keep original branch points of cousins")), |
73fdc535 | 353 | OPT_BOOL(0, "autosquash", &opts.autosquash, |
0609b741 PW |
354 | N_("move commits that begin with squash!/fixup!")), |
355 | OPT_BOOL(0, "signoff", &opts.signoff, N_("sign commits")), | |
73fdc535 PW |
356 | OPT_BIT('v', "verbose", &opts.flags, |
357 | N_("display a diffstat of what changed upstream"), | |
358 | REBASE_NO_QUIET | REBASE_VERBOSE | REBASE_DIFFSTAT), | |
0609b741 PW |
359 | OPT_CMDMODE(0, "continue", &command, N_("continue rebase"), |
360 | CONTINUE), | |
361 | OPT_CMDMODE(0, "skip", &command, N_("skip commit"), SKIP), | |
362 | OPT_CMDMODE(0, "edit-todo", &command, N_("edit the todo list"), | |
363 | EDIT_TODO), | |
364 | OPT_CMDMODE(0, "show-current-patch", &command, N_("show the current patch"), | |
365 | SHOW_CURRENT_PATCH), | |
366 | OPT_CMDMODE(0, "shorten-ids", &command, | |
367 | N_("shorten commit ids in the todo list"), SHORTEN_OIDS), | |
368 | OPT_CMDMODE(0, "expand-ids", &command, | |
369 | N_("expand commit ids in the todo list"), EXPAND_OIDS), | |
370 | OPT_CMDMODE(0, "check-todo-list", &command, | |
371 | N_("check the todo list"), CHECK_TODO_LIST), | |
372 | OPT_CMDMODE(0, "rearrange-squash", &command, | |
373 | N_("rearrange fixup/squash lines"), REARRANGE_SQUASH), | |
374 | OPT_CMDMODE(0, "add-exec-commands", &command, | |
375 | N_("insert exec commands in todo list"), ADD_EXEC), | |
73fdc535 | 376 | { OPTION_CALLBACK, 0, "onto", &opts.onto, N_("onto"), N_("onto"), |
7d3488eb | 377 | PARSE_OPT_NONEG, parse_opt_commit, 0 }, |
73fdc535 | 378 | { OPTION_CALLBACK, 0, "restrict-revision", &opts.restrict_revision, |
7d3488eb PW |
379 | N_("restrict-revision"), N_("restrict revision"), |
380 | PARSE_OPT_NONEG, parse_opt_commit, 0 }, | |
33898531 PW |
381 | { OPTION_CALLBACK, 0, "squash-onto", &squash_onto, N_("squash-onto"), |
382 | N_("squash onto"), PARSE_OPT_NONEG, parse_opt_object_id, 0 }, | |
73fdc535 | 383 | { OPTION_CALLBACK, 0, "upstream", &opts.upstream, N_("upstream"), |
7d3488eb PW |
384 | N_("the upstream commit"), PARSE_OPT_NONEG, parse_opt_commit, |
385 | 0 }, | |
73fdc535 PW |
386 | OPT_STRING(0, "head-name", &opts.head_name, N_("head-name"), N_("head name")), |
387 | { OPTION_STRING, 'S', "gpg-sign", &opts.gpg_sign_opt, N_("key-id"), | |
0609b741 PW |
388 | N_("GPG-sign commits"), |
389 | PARSE_OPT_OPTARG, NULL, (intptr_t) "" }, | |
390 | OPT_STRING(0, "strategy", &opts.strategy, N_("strategy"), | |
391 | N_("rebase strategy")), | |
73fdc535 | 392 | OPT_STRING(0, "strategy-opts", &opts.strategy_opts, N_("strategy-opts"), |
0609b741 | 393 | N_("strategy options")), |
73fdc535 | 394 | OPT_STRING(0, "switch-to", &opts.switch_to, N_("switch-to"), |
0609b741 | 395 | N_("the branch or commit to checkout")), |
73fdc535 PW |
396 | OPT_STRING(0, "onto-name", &opts.onto_name, N_("onto-name"), N_("onto name")), |
397 | OPT_STRING(0, "cmd", &opts.cmd, N_("cmd"), N_("the command to run")), | |
398 | OPT_RERERE_AUTOUPDATE(&opts.allow_rerere_autoupdate), | |
0609b741 PW |
399 | OPT_BOOL(0, "reschedule-failed-exec", &opts.reschedule_failed_exec, |
400 | N_("automatically re-schedule any `exec` that fails")), | |
401 | OPT_END() | |
402 | }; | |
403 | ||
73fdc535 | 404 | opts.rebase_cousins = -1; |
0609b741 | 405 | |
73fdc535 | 406 | git_config_get_bool("rebase.abbreviatecommands", &abbreviate_commands); |
0609b741 PW |
407 | |
408 | if (argc == 1) | |
409 | usage_with_options(builtin_rebase_interactive_usage, options); | |
410 | ||
411 | argc = parse_options(argc, argv, NULL, options, | |
412 | builtin_rebase_interactive_usage, PARSE_OPT_KEEP_ARGV0); | |
413 | ||
33898531 | 414 | if (!is_null_oid(&squash_onto)) |
73fdc535 | 415 | opts.squash_onto = &squash_onto; |
33898531 | 416 | |
73fdc535 | 417 | flags |= opts.keep_empty ? TODO_LIST_KEEP_EMPTY : 0; |
0609b741 | 418 | flags |= abbreviate_commands ? TODO_LIST_ABBREVIATE_CMDS : 0; |
73fdc535 PW |
419 | flags |= opts.rebase_merges ? TODO_LIST_REBASE_MERGES : 0; |
420 | flags |= opts.rebase_cousins > 0 ? TODO_LIST_REBASE_COUSINS : 0; | |
0609b741 PW |
421 | flags |= command == SHORTEN_OIDS ? TODO_LIST_SHORTEN_IDS : 0; |
422 | ||
73fdc535 | 423 | if (opts.rebase_cousins >= 0 && !opts.rebase_merges) |
0609b741 PW |
424 | warning(_("--[no-]rebase-cousins has no effect without " |
425 | "--rebase-merges")); | |
426 | ||
73fdc535 PW |
427 | if (opts.cmd && *opts.cmd) { |
428 | string_list_split(&commands, opts.cmd, '\n', -1); | |
0609b741 PW |
429 | |
430 | /* rebase.c adds a new line to cmd after every command, | |
431 | * so here the last command is always empty */ | |
432 | string_list_remove_empty_items(&commands, 0); | |
433 | } | |
434 | ||
435 | switch (command) { | |
73fdc535 PW |
436 | case NONE: { |
437 | struct replay_opts replay_opts = get_replay_opts(&opts); | |
438 | if (!opts.onto && !opts.upstream) | |
0609b741 PW |
439 | die(_("a base commit must be provided with --upstream or --onto")); |
440 | ||
73fdc535 PW |
441 | ret = do_interactive_rebase(&replay_opts, flags, opts.switch_to, opts.upstream, opts.onto, |
442 | opts.onto_name, opts.squash_onto, opts.head_name, opts.restrict_revision, | |
443 | opts.strategy_opts, &commands, opts.autosquash); | |
0609b741 | 444 | break; |
73fdc535 | 445 | } |
0609b741 PW |
446 | case SKIP: { |
447 | struct string_list merge_rr = STRING_LIST_INIT_DUP; | |
448 | ||
449 | rerere_clear(the_repository, &merge_rr); | |
73fdc535 | 450 | } |
0609b741 | 451 | /* fallthrough */ |
73fdc535 PW |
452 | case CONTINUE: { |
453 | struct replay_opts replay_opts = get_replay_opts(&opts); | |
454 | ||
455 | ret = sequencer_continue(the_repository, &replay_opts); | |
0609b741 PW |
456 | break; |
457 | } | |
458 | case EDIT_TODO: | |
459 | ret = edit_todo_file(flags); | |
460 | break; | |
461 | case SHOW_CURRENT_PATCH: { | |
462 | struct child_process cmd = CHILD_PROCESS_INIT; | |
463 | ||
464 | cmd.git_cmd = 1; | |
465 | argv_array_pushl(&cmd.args, "show", "REBASE_HEAD", "--", NULL); | |
466 | ret = run_command(&cmd); | |
467 | ||
468 | break; | |
469 | } | |
470 | case SHORTEN_OIDS: | |
471 | case EXPAND_OIDS: | |
472 | ret = transform_todo_file(flags); | |
473 | break; | |
474 | case CHECK_TODO_LIST: | |
475 | ret = check_todo_list_from_file(the_repository); | |
476 | break; | |
477 | case REARRANGE_SQUASH: | |
478 | ret = rearrange_squash_in_todo_file(); | |
479 | break; | |
480 | case ADD_EXEC: | |
481 | ret = add_exec_commands(&commands); | |
482 | break; | |
483 | default: | |
484 | BUG("invalid command '%d'", command); | |
485 | } | |
486 | ||
487 | string_list_clear(&commands, 0); | |
488 | return !!ret; | |
489 | } | |
490 | ||
55071ea2 PK |
491 | static int use_builtin_rebase(void) |
492 | { | |
493 | struct child_process cp = CHILD_PROCESS_INIT; | |
494 | struct strbuf out = STRBUF_INIT; | |
62c23938 ÆAB |
495 | int ret, env = git_env_bool("GIT_TEST_REBASE_USE_BUILTIN", -1); |
496 | ||
497 | if (env != -1) | |
498 | return env; | |
55071ea2 PK |
499 | |
500 | argv_array_pushl(&cp.args, | |
501 | "config", "--bool", "rebase.usebuiltin", NULL); | |
502 | cp.git_cmd = 1; | |
503 | if (capture_command(&cp, &out, 6)) { | |
504 | strbuf_release(&out); | |
5541bd5b | 505 | return 1; |
55071ea2 PK |
506 | } |
507 | ||
508 | strbuf_trim(&out); | |
509 | ret = !strcmp("true", out.buf); | |
510 | strbuf_release(&out); | |
511 | return ret; | |
512 | } | |
513 | ||
9a48a615 PK |
514 | static int is_interactive(struct rebase_options *opts) |
515 | { | |
516 | return opts->type == REBASE_INTERACTIVE || | |
517 | opts->type == REBASE_PRESERVE_MERGES; | |
518 | } | |
519 | ||
002ee2fe PK |
520 | static void imply_interactive(struct rebase_options *opts, const char *option) |
521 | { | |
522 | switch (opts->type) { | |
523 | case REBASE_AM: | |
524 | die(_("%s requires an interactive rebase"), option); | |
525 | break; | |
526 | case REBASE_INTERACTIVE: | |
527 | case REBASE_PRESERVE_MERGES: | |
528 | break; | |
529 | case REBASE_MERGE: | |
68aa495b | 530 | /* we now implement --merge via --interactive */ |
002ee2fe PK |
531 | default: |
532 | opts->type = REBASE_INTERACTIVE; /* implied */ | |
533 | break; | |
534 | } | |
535 | } | |
536 | ||
ac7f467f PK |
537 | /* Returns the filename prefixed by the state_dir */ |
538 | static const char *state_dir_path(const char *filename, struct rebase_options *opts) | |
539 | { | |
540 | static struct strbuf path = STRBUF_INIT; | |
541 | static size_t prefix_len; | |
542 | ||
543 | if (!prefix_len) { | |
544 | strbuf_addf(&path, "%s/", opts->state_dir); | |
545 | prefix_len = path.len; | |
546 | } | |
547 | ||
548 | strbuf_setlen(&path, prefix_len); | |
549 | strbuf_addstr(&path, filename); | |
550 | return path.buf; | |
551 | } | |
552 | ||
f9573628 PK |
553 | /* Read one file, then strip line endings */ |
554 | static int read_one(const char *path, struct strbuf *buf) | |
555 | { | |
556 | if (strbuf_read_file(buf, path, 0) < 0) | |
557 | return error_errno(_("could not read '%s'"), path); | |
558 | strbuf_trim_trailing_newline(buf); | |
559 | return 0; | |
560 | } | |
561 | ||
562 | /* Initialize the rebase options from the state directory. */ | |
563 | static int read_basic_state(struct rebase_options *opts) | |
564 | { | |
565 | struct strbuf head_name = STRBUF_INIT; | |
566 | struct strbuf buf = STRBUF_INIT; | |
567 | struct object_id oid; | |
568 | ||
569 | if (read_one(state_dir_path("head-name", opts), &head_name) || | |
570 | read_one(state_dir_path("onto", opts), &buf)) | |
571 | return -1; | |
572 | opts->head_name = starts_with(head_name.buf, "refs/") ? | |
573 | xstrdup(head_name.buf) : NULL; | |
574 | strbuf_release(&head_name); | |
575 | if (get_oid(buf.buf, &oid)) | |
576 | return error(_("could not get 'onto': '%s'"), buf.buf); | |
577 | opts->onto = lookup_commit_or_die(&oid, buf.buf); | |
578 | ||
579 | /* | |
580 | * We always write to orig-head, but interactive rebase used to write to | |
581 | * head. Fall back to reading from head to cover for the case that the | |
582 | * user upgraded git with an ongoing interactive rebase. | |
583 | */ | |
584 | strbuf_reset(&buf); | |
585 | if (file_exists(state_dir_path("orig-head", opts))) { | |
586 | if (read_one(state_dir_path("orig-head", opts), &buf)) | |
587 | return -1; | |
588 | } else if (read_one(state_dir_path("head", opts), &buf)) | |
589 | return -1; | |
590 | if (get_oid(buf.buf, &opts->orig_head)) | |
591 | return error(_("invalid orig-head: '%s'"), buf.buf); | |
592 | ||
899b49c4 | 593 | if (file_exists(state_dir_path("quiet", opts))) |
f9573628 PK |
594 | opts->flags &= ~REBASE_NO_QUIET; |
595 | else | |
596 | opts->flags |= REBASE_NO_QUIET; | |
597 | ||
598 | if (file_exists(state_dir_path("verbose", opts))) | |
599 | opts->flags |= REBASE_VERBOSE; | |
600 | ||
73d51ed0 PK |
601 | if (file_exists(state_dir_path("signoff", opts))) { |
602 | opts->signoff = 1; | |
603 | opts->flags |= REBASE_FORCE; | |
604 | } | |
605 | ||
ead98c11 PK |
606 | if (file_exists(state_dir_path("allow_rerere_autoupdate", opts))) { |
607 | strbuf_reset(&buf); | |
608 | if (read_one(state_dir_path("allow_rerere_autoupdate", opts), | |
609 | &buf)) | |
610 | return -1; | |
611 | if (!strcmp(buf.buf, "--rerere-autoupdate")) | |
6023c928 | 612 | opts->allow_rerere_autoupdate = RERERE_AUTOUPDATE; |
ead98c11 | 613 | else if (!strcmp(buf.buf, "--no-rerere-autoupdate")) |
6023c928 | 614 | opts->allow_rerere_autoupdate = RERERE_NOAUTOUPDATE; |
ead98c11 PK |
615 | else |
616 | warning(_("ignoring invalid allow_rerere_autoupdate: " | |
617 | "'%s'"), buf.buf); | |
6023c928 | 618 | } |
ead98c11 | 619 | |
12026a41 PK |
620 | if (file_exists(state_dir_path("gpg_sign_opt", opts))) { |
621 | strbuf_reset(&buf); | |
622 | if (read_one(state_dir_path("gpg_sign_opt", opts), | |
623 | &buf)) | |
624 | return -1; | |
625 | free(opts->gpg_sign_opt); | |
626 | opts->gpg_sign_opt = xstrdup(buf.buf); | |
627 | } | |
628 | ||
ba1905a5 PK |
629 | if (file_exists(state_dir_path("strategy", opts))) { |
630 | strbuf_reset(&buf); | |
631 | if (read_one(state_dir_path("strategy", opts), &buf)) | |
632 | return -1; | |
633 | free(opts->strategy); | |
634 | opts->strategy = xstrdup(buf.buf); | |
635 | } | |
636 | ||
637 | if (file_exists(state_dir_path("strategy_opts", opts))) { | |
638 | strbuf_reset(&buf); | |
639 | if (read_one(state_dir_path("strategy_opts", opts), &buf)) | |
640 | return -1; | |
641 | free(opts->strategy_opts); | |
642 | opts->strategy_opts = xstrdup(buf.buf); | |
643 | } | |
644 | ||
f9573628 PK |
645 | strbuf_release(&buf); |
646 | ||
647 | return 0; | |
648 | } | |
649 | ||
28dc09de | 650 | static int rebase_write_basic_state(struct rebase_options *opts) |
21853626 JS |
651 | { |
652 | write_file(state_dir_path("head-name", opts), "%s", | |
653 | opts->head_name ? opts->head_name : "detached HEAD"); | |
654 | write_file(state_dir_path("onto", opts), "%s", | |
655 | opts->onto ? oid_to_hex(&opts->onto->object.oid) : ""); | |
656 | write_file(state_dir_path("orig-head", opts), "%s", | |
657 | oid_to_hex(&opts->orig_head)); | |
658 | write_file(state_dir_path("quiet", opts), "%s", | |
659 | opts->flags & REBASE_NO_QUIET ? "" : "t"); | |
660 | if (opts->flags & REBASE_VERBOSE) | |
661 | write_file(state_dir_path("verbose", opts), "%s", ""); | |
662 | if (opts->strategy) | |
663 | write_file(state_dir_path("strategy", opts), "%s", | |
664 | opts->strategy); | |
665 | if (opts->strategy_opts) | |
666 | write_file(state_dir_path("strategy_opts", opts), "%s", | |
667 | opts->strategy_opts); | |
6023c928 | 668 | if (opts->allow_rerere_autoupdate > 0) |
21853626 JS |
669 | write_file(state_dir_path("allow_rerere_autoupdate", opts), |
670 | "-%s-rerere-autoupdate", | |
6023c928 PW |
671 | opts->allow_rerere_autoupdate == RERERE_AUTOUPDATE ? |
672 | "" : "-no"); | |
21853626 JS |
673 | if (opts->gpg_sign_opt) |
674 | write_file(state_dir_path("gpg_sign_opt", opts), "%s", | |
675 | opts->gpg_sign_opt); | |
676 | if (opts->signoff) | |
677 | write_file(state_dir_path("strategy", opts), "--signoff"); | |
678 | ||
679 | return 0; | |
680 | } | |
681 | ||
6defce2b PK |
682 | static int apply_autostash(struct rebase_options *opts) |
683 | { | |
684 | const char *path = state_dir_path("autostash", opts); | |
685 | struct strbuf autostash = STRBUF_INIT; | |
686 | struct child_process stash_apply = CHILD_PROCESS_INIT; | |
687 | ||
688 | if (!file_exists(path)) | |
689 | return 0; | |
690 | ||
71064e60 | 691 | if (read_one(path, &autostash)) |
6defce2b | 692 | return error(_("Could not read '%s'"), path); |
b98e914e JS |
693 | /* Ensure that the hash is not mistaken for a number */ |
694 | strbuf_addstr(&autostash, "^0"); | |
6defce2b PK |
695 | argv_array_pushl(&stash_apply.args, |
696 | "stash", "apply", autostash.buf, NULL); | |
697 | stash_apply.git_cmd = 1; | |
698 | stash_apply.no_stderr = stash_apply.no_stdout = | |
699 | stash_apply.no_stdin = 1; | |
700 | if (!run_command(&stash_apply)) | |
701 | printf(_("Applied autostash.\n")); | |
702 | else { | |
703 | struct argv_array args = ARGV_ARRAY_INIT; | |
704 | int res = 0; | |
705 | ||
706 | argv_array_pushl(&args, | |
707 | "stash", "store", "-m", "autostash", "-q", | |
708 | autostash.buf, NULL); | |
709 | if (run_command_v_opt(args.argv, RUN_GIT_CMD)) | |
710 | res = error(_("Cannot store %s"), autostash.buf); | |
711 | argv_array_clear(&args); | |
712 | strbuf_release(&autostash); | |
713 | if (res) | |
714 | return res; | |
715 | ||
716 | fprintf(stderr, | |
717 | _("Applying autostash resulted in conflicts.\n" | |
718 | "Your changes are safe in the stash.\n" | |
719 | "You can run \"git stash pop\" or \"git stash drop\" " | |
720 | "at any time.\n")); | |
721 | } | |
722 | ||
723 | strbuf_release(&autostash); | |
724 | return 0; | |
725 | } | |
726 | ||
ac7f467f PK |
727 | static int finish_rebase(struct rebase_options *opts) |
728 | { | |
729 | struct strbuf dir = STRBUF_INIT; | |
730 | const char *argv_gc_auto[] = { "gc", "--auto", NULL }; | |
731 | ||
732 | delete_ref(NULL, "REBASE_HEAD", NULL, REF_NO_DEREF); | |
6defce2b | 733 | apply_autostash(opts); |
ac7f467f PK |
734 | close_all_packs(the_repository->objects); |
735 | /* | |
736 | * We ignore errors in 'gc --auto', since the | |
737 | * user should see them. | |
738 | */ | |
739 | run_command_v_opt(argv_gc_auto, RUN_GIT_CMD); | |
740 | strbuf_addstr(&dir, opts->state_dir); | |
741 | remove_dir_recursively(&dir, 0); | |
742 | strbuf_release(&dir); | |
743 | ||
744 | return 0; | |
745 | } | |
746 | ||
747 | static struct commit *peel_committish(const char *name) | |
748 | { | |
749 | struct object *obj; | |
750 | struct object_id oid; | |
751 | ||
752 | if (get_oid(name, &oid)) | |
753 | return NULL; | |
754 | obj = parse_object(the_repository, &oid); | |
755 | return (struct commit *)peel_to_type(name, 0, obj, OBJ_COMMIT); | |
756 | } | |
757 | ||
758 | static void add_var(struct strbuf *buf, const char *name, const char *value) | |
759 | { | |
760 | if (!value) | |
761 | strbuf_addf(buf, "unset %s; ", name); | |
762 | else { | |
763 | strbuf_addf(buf, "%s=", name); | |
764 | sq_quote_buf(buf, value); | |
765 | strbuf_addstr(buf, "; "); | |
766 | } | |
767 | } | |
768 | ||
c5233708 JS |
769 | #define GIT_REFLOG_ACTION_ENVIRONMENT "GIT_REFLOG_ACTION" |
770 | ||
771 | #define RESET_HEAD_DETACH (1<<0) | |
772 | #define RESET_HEAD_HARD (1<<1) | |
e52c6bbd JH |
773 | #define RESET_HEAD_RUN_POST_CHECKOUT_HOOK (1<<2) |
774 | #define RESET_HEAD_REFS_ONLY (1<<3) | |
c5233708 JS |
775 | |
776 | static int reset_head(struct object_id *oid, const char *action, | |
777 | const char *switch_to_branch, unsigned flags, | |
778 | const char *reflog_orig_head, const char *reflog_head) | |
779 | { | |
780 | unsigned detach_head = flags & RESET_HEAD_DETACH; | |
781 | unsigned reset_hard = flags & RESET_HEAD_HARD; | |
e52c6bbd | 782 | unsigned run_hook = flags & RESET_HEAD_RUN_POST_CHECKOUT_HOOK; |
414f3360 | 783 | unsigned refs_only = flags & RESET_HEAD_REFS_ONLY; |
c5233708 JS |
784 | struct object_id head_oid; |
785 | struct tree_desc desc[2] = { { NULL }, { NULL } }; | |
786 | struct lock_file lock = LOCK_INIT; | |
787 | struct unpack_trees_options unpack_tree_opts; | |
788 | struct tree *tree; | |
789 | const char *reflog_action; | |
790 | struct strbuf msg = STRBUF_INIT; | |
791 | size_t prefix_len; | |
792 | struct object_id *orig = NULL, oid_orig, | |
793 | *old_orig = NULL, oid_old_orig; | |
794 | int ret = 0, nr = 0; | |
795 | ||
796 | if (switch_to_branch && !starts_with(switch_to_branch, "refs/")) | |
797 | BUG("Not a fully qualified branch: '%s'", switch_to_branch); | |
798 | ||
414f3360 | 799 | if (!refs_only && hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0) { |
c5233708 JS |
800 | ret = -1; |
801 | goto leave_reset_head; | |
802 | } | |
803 | ||
804 | if ((!oid || !reset_hard) && get_oid("HEAD", &head_oid)) { | |
805 | ret = error(_("could not determine HEAD revision")); | |
806 | goto leave_reset_head; | |
807 | } | |
808 | ||
809 | if (!oid) | |
810 | oid = &head_oid; | |
811 | ||
414f3360 JS |
812 | if (refs_only) |
813 | goto reset_head_refs; | |
814 | ||
c5233708 JS |
815 | memset(&unpack_tree_opts, 0, sizeof(unpack_tree_opts)); |
816 | setup_unpack_trees_porcelain(&unpack_tree_opts, action); | |
817 | unpack_tree_opts.head_idx = 1; | |
818 | unpack_tree_opts.src_index = the_repository->index; | |
819 | unpack_tree_opts.dst_index = the_repository->index; | |
820 | unpack_tree_opts.fn = reset_hard ? oneway_merge : twoway_merge; | |
821 | unpack_tree_opts.update = 1; | |
822 | unpack_tree_opts.merge = 1; | |
823 | if (!detach_head) | |
824 | unpack_tree_opts.reset = 1; | |
825 | ||
7589e636 | 826 | if (repo_read_index_unmerged(the_repository) < 0) { |
c5233708 JS |
827 | ret = error(_("could not read index")); |
828 | goto leave_reset_head; | |
829 | } | |
830 | ||
831 | if (!reset_hard && !fill_tree_descriptor(&desc[nr++], &head_oid)) { | |
832 | ret = error(_("failed to find tree of %s"), | |
833 | oid_to_hex(&head_oid)); | |
834 | goto leave_reset_head; | |
835 | } | |
836 | ||
837 | if (!fill_tree_descriptor(&desc[nr++], oid)) { | |
838 | ret = error(_("failed to find tree of %s"), oid_to_hex(oid)); | |
839 | goto leave_reset_head; | |
840 | } | |
841 | ||
842 | if (unpack_trees(nr, desc, &unpack_tree_opts)) { | |
843 | ret = -1; | |
844 | goto leave_reset_head; | |
845 | } | |
846 | ||
847 | tree = parse_tree_indirect(oid); | |
e52c6bbd | 848 | prime_cache_tree(the_repository, the_repository->index, tree); |
c5233708 JS |
849 | |
850 | if (write_locked_index(the_repository->index, &lock, COMMIT_LOCK) < 0) { | |
851 | ret = error(_("could not write index")); | |
852 | goto leave_reset_head; | |
853 | } | |
854 | ||
414f3360 | 855 | reset_head_refs: |
c5233708 JS |
856 | reflog_action = getenv(GIT_REFLOG_ACTION_ENVIRONMENT); |
857 | strbuf_addf(&msg, "%s: ", reflog_action ? reflog_action : "rebase"); | |
858 | prefix_len = msg.len; | |
859 | ||
860 | if (!get_oid("ORIG_HEAD", &oid_old_orig)) | |
861 | old_orig = &oid_old_orig; | |
862 | if (!get_oid("HEAD", &oid_orig)) { | |
863 | orig = &oid_orig; | |
864 | if (!reflog_orig_head) { | |
865 | strbuf_addstr(&msg, "updating ORIG_HEAD"); | |
866 | reflog_orig_head = msg.buf; | |
867 | } | |
868 | update_ref(reflog_orig_head, "ORIG_HEAD", orig, old_orig, 0, | |
869 | UPDATE_REFS_MSG_ON_ERR); | |
870 | } else if (old_orig) | |
871 | delete_ref(NULL, "ORIG_HEAD", old_orig, 0); | |
872 | if (!reflog_head) { | |
873 | strbuf_setlen(&msg, prefix_len); | |
874 | strbuf_addstr(&msg, "updating HEAD"); | |
875 | reflog_head = msg.buf; | |
876 | } | |
877 | if (!switch_to_branch) | |
878 | ret = update_ref(reflog_head, "HEAD", oid, orig, | |
879 | detach_head ? REF_NO_DEREF : 0, | |
880 | UPDATE_REFS_MSG_ON_ERR); | |
881 | else { | |
5b2237a8 JS |
882 | ret = update_ref(reflog_orig_head, switch_to_branch, oid, |
883 | NULL, 0, UPDATE_REFS_MSG_ON_ERR); | |
c5233708 | 884 | if (!ret) |
5b2237a8 JS |
885 | ret = create_symref("HEAD", switch_to_branch, |
886 | reflog_head); | |
c5233708 | 887 | } |
e52c6bbd JH |
888 | if (run_hook) |
889 | run_hook_le(NULL, "post-checkout", | |
890 | oid_to_hex(orig ? orig : &null_oid), | |
891 | oid_to_hex(oid), "1", NULL); | |
c5233708 JS |
892 | |
893 | leave_reset_head: | |
894 | strbuf_release(&msg); | |
895 | rollback_lock_file(&lock); | |
896 | while (nr) | |
897 | free((void *)desc[--nr].buffer); | |
898 | return ret; | |
899 | } | |
900 | ||
21853626 JS |
901 | static int move_to_original_branch(struct rebase_options *opts) |
902 | { | |
903 | struct strbuf orig_head_reflog = STRBUF_INIT, head_reflog = STRBUF_INIT; | |
904 | int ret; | |
905 | ||
906 | if (!opts->head_name) | |
907 | return 0; /* nothing to move back to */ | |
908 | ||
909 | if (!opts->onto) | |
910 | BUG("move_to_original_branch without onto"); | |
911 | ||
912 | strbuf_addf(&orig_head_reflog, "rebase finished: %s onto %s", | |
913 | opts->head_name, oid_to_hex(&opts->onto->object.oid)); | |
914 | strbuf_addf(&head_reflog, "rebase finished: returning to %s", | |
915 | opts->head_name); | |
916 | ret = reset_head(NULL, "", opts->head_name, RESET_HEAD_REFS_ONLY, | |
917 | orig_head_reflog.buf, head_reflog.buf); | |
918 | ||
919 | strbuf_release(&orig_head_reflog); | |
920 | strbuf_release(&head_reflog); | |
921 | return ret; | |
922 | } | |
923 | ||
bc24382c JS |
924 | static const char *resolvemsg = |
925 | N_("Resolve all conflicts manually, mark them as resolved with\n" | |
926 | "\"git add/rm <conflicted_files>\", then run \"git rebase --continue\".\n" | |
927 | "You can instead skip this commit: run \"git rebase --skip\".\n" | |
928 | "To abort and get back to the state before \"git rebase\", run " | |
929 | "\"git rebase --abort\"."); | |
930 | ||
21853626 JS |
931 | static int run_am(struct rebase_options *opts) |
932 | { | |
933 | struct child_process am = CHILD_PROCESS_INIT; | |
934 | struct child_process format_patch = CHILD_PROCESS_INIT; | |
935 | struct strbuf revisions = STRBUF_INIT; | |
936 | int status; | |
937 | char *rebased_patches; | |
938 | ||
939 | am.git_cmd = 1; | |
940 | argv_array_push(&am.args, "am"); | |
941 | ||
942 | if (opts->action && !strcmp("continue", opts->action)) { | |
943 | argv_array_push(&am.args, "--resolved"); | |
944 | argv_array_pushf(&am.args, "--resolvemsg=%s", resolvemsg); | |
945 | if (opts->gpg_sign_opt) | |
946 | argv_array_push(&am.args, opts->gpg_sign_opt); | |
947 | status = run_command(&am); | |
948 | if (status) | |
949 | return status; | |
950 | ||
951 | return move_to_original_branch(opts); | |
952 | } | |
953 | if (opts->action && !strcmp("skip", opts->action)) { | |
954 | argv_array_push(&am.args, "--skip"); | |
955 | argv_array_pushf(&am.args, "--resolvemsg=%s", resolvemsg); | |
956 | status = run_command(&am); | |
957 | if (status) | |
958 | return status; | |
959 | ||
960 | return move_to_original_branch(opts); | |
961 | } | |
962 | if (opts->action && !strcmp("show-current-patch", opts->action)) { | |
963 | argv_array_push(&am.args, "--show-current-patch"); | |
964 | return run_command(&am); | |
965 | } | |
966 | ||
967 | strbuf_addf(&revisions, "%s...%s", | |
968 | oid_to_hex(opts->root ? | |
969 | /* this is now equivalent to !opts->upstream */ | |
970 | &opts->onto->object.oid : | |
971 | &opts->upstream->object.oid), | |
972 | oid_to_hex(&opts->orig_head)); | |
973 | ||
974 | rebased_patches = xstrdup(git_path("rebased-patches")); | |
975 | format_patch.out = open(rebased_patches, | |
976 | O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
977 | if (format_patch.out < 0) { | |
978 | status = error_errno(_("could not open '%s' for writing"), | |
979 | rebased_patches); | |
980 | free(rebased_patches); | |
981 | argv_array_clear(&am.args); | |
982 | return status; | |
983 | } | |
984 | ||
985 | format_patch.git_cmd = 1; | |
986 | argv_array_pushl(&format_patch.args, "format-patch", "-k", "--stdout", | |
987 | "--full-index", "--cherry-pick", "--right-only", | |
988 | "--src-prefix=a/", "--dst-prefix=b/", "--no-renames", | |
e52c6bbd | 989 | "--no-cover-letter", "--pretty=mboxrd", "--topo-order", NULL); |
21853626 JS |
990 | if (opts->git_format_patch_opt.len) |
991 | argv_array_split(&format_patch.args, | |
992 | opts->git_format_patch_opt.buf); | |
993 | argv_array_push(&format_patch.args, revisions.buf); | |
994 | if (opts->restrict_revision) | |
995 | argv_array_pushf(&format_patch.args, "^%s", | |
996 | oid_to_hex(&opts->restrict_revision->object.oid)); | |
997 | ||
998 | status = run_command(&format_patch); | |
999 | if (status) { | |
1000 | unlink(rebased_patches); | |
1001 | free(rebased_patches); | |
1002 | argv_array_clear(&am.args); | |
1003 | ||
1004 | reset_head(&opts->orig_head, "checkout", opts->head_name, 0, | |
1005 | "HEAD", NULL); | |
1006 | error(_("\ngit encountered an error while preparing the " | |
1007 | "patches to replay\n" | |
1008 | "these revisions:\n" | |
1009 | "\n %s\n\n" | |
1010 | "As a result, git cannot rebase them."), | |
1011 | opts->revisions); | |
1012 | ||
1013 | strbuf_release(&revisions); | |
1014 | return status; | |
1015 | } | |
1016 | strbuf_release(&revisions); | |
1017 | ||
1018 | am.in = open(rebased_patches, O_RDONLY); | |
1019 | if (am.in < 0) { | |
1020 | status = error_errno(_("could not open '%s' for reading"), | |
1021 | rebased_patches); | |
1022 | free(rebased_patches); | |
1023 | argv_array_clear(&am.args); | |
1024 | return status; | |
1025 | } | |
1026 | ||
1027 | argv_array_pushv(&am.args, opts->git_am_opts.argv); | |
1028 | argv_array_push(&am.args, "--rebasing"); | |
1029 | argv_array_pushf(&am.args, "--resolvemsg=%s", resolvemsg); | |
1030 | argv_array_push(&am.args, "--patch-format=mboxrd"); | |
6023c928 | 1031 | if (opts->allow_rerere_autoupdate == RERERE_AUTOUPDATE) |
21853626 | 1032 | argv_array_push(&am.args, "--rerere-autoupdate"); |
6023c928 | 1033 | else if (opts->allow_rerere_autoupdate == RERERE_NOAUTOUPDATE) |
21853626 JS |
1034 | argv_array_push(&am.args, "--no-rerere-autoupdate"); |
1035 | if (opts->gpg_sign_opt) | |
1036 | argv_array_push(&am.args, opts->gpg_sign_opt); | |
1037 | status = run_command(&am); | |
1038 | unlink(rebased_patches); | |
1039 | free(rebased_patches); | |
1040 | ||
1041 | if (!status) { | |
1042 | return move_to_original_branch(opts); | |
1043 | } | |
1044 | ||
1045 | if (is_directory(opts->state_dir)) | |
28dc09de | 1046 | rebase_write_basic_state(opts); |
21853626 JS |
1047 | |
1048 | return status; | |
1049 | } | |
1050 | ||
ac7f467f PK |
1051 | static int run_specific_rebase(struct rebase_options *opts) |
1052 | { | |
1053 | const char *argv[] = { NULL, NULL }; | |
f5769680 | 1054 | struct strbuf script_snippet = STRBUF_INIT, buf = STRBUF_INIT; |
ac7f467f PK |
1055 | int status; |
1056 | const char *backend, *backend_func; | |
1057 | ||
bc24382c JS |
1058 | if (opts->type == REBASE_INTERACTIVE) { |
1059 | /* Run builtin interactive rebase */ | |
1060 | struct child_process child = CHILD_PROCESS_INIT; | |
1061 | ||
1062 | argv_array_pushf(&child.env_array, "GIT_CHERRY_PICK_HELP=%s", | |
1063 | resolvemsg); | |
1064 | if (!(opts->flags & REBASE_INTERACTIVE_EXPLICIT)) { | |
891d4a03 PW |
1065 | argv_array_push(&child.env_array, |
1066 | "GIT_SEQUENCE_EDITOR=:"); | |
bc24382c JS |
1067 | opts->autosquash = 0; |
1068 | } | |
1069 | ||
1070 | child.git_cmd = 1; | |
1071 | argv_array_push(&child.args, "rebase--interactive"); | |
1072 | ||
1073 | if (opts->action) | |
1074 | argv_array_pushf(&child.args, "--%s", opts->action); | |
1075 | if (opts->keep_empty) | |
1076 | argv_array_push(&child.args, "--keep-empty"); | |
1077 | if (opts->rebase_merges) | |
1078 | argv_array_push(&child.args, "--rebase-merges"); | |
1079 | if (opts->rebase_cousins) | |
1080 | argv_array_push(&child.args, "--rebase-cousins"); | |
1081 | if (opts->autosquash) | |
1082 | argv_array_push(&child.args, "--autosquash"); | |
1083 | if (opts->flags & REBASE_VERBOSE) | |
1084 | argv_array_push(&child.args, "--verbose"); | |
1085 | if (opts->flags & REBASE_FORCE) | |
1086 | argv_array_push(&child.args, "--no-ff"); | |
1087 | if (opts->restrict_revision) | |
1088 | argv_array_pushf(&child.args, | |
1089 | "--restrict-revision=^%s", | |
1090 | oid_to_hex(&opts->restrict_revision->object.oid)); | |
1091 | if (opts->upstream) | |
1092 | argv_array_pushf(&child.args, "--upstream=%s", | |
1093 | oid_to_hex(&opts->upstream->object.oid)); | |
1094 | if (opts->onto) | |
1095 | argv_array_pushf(&child.args, "--onto=%s", | |
1096 | oid_to_hex(&opts->onto->object.oid)); | |
1097 | if (opts->squash_onto) | |
1098 | argv_array_pushf(&child.args, "--squash-onto=%s", | |
1099 | oid_to_hex(opts->squash_onto)); | |
1100 | if (opts->onto_name) | |
1101 | argv_array_pushf(&child.args, "--onto-name=%s", | |
1102 | opts->onto_name); | |
1103 | argv_array_pushf(&child.args, "--head-name=%s", | |
1104 | opts->head_name ? | |
1105 | opts->head_name : "detached HEAD"); | |
1106 | if (opts->strategy) | |
1107 | argv_array_pushf(&child.args, "--strategy=%s", | |
1108 | opts->strategy); | |
1109 | if (opts->strategy_opts) | |
1110 | argv_array_pushf(&child.args, "--strategy-opts=%s", | |
1111 | opts->strategy_opts); | |
1112 | if (opts->switch_to) | |
1113 | argv_array_pushf(&child.args, "--switch-to=%s", | |
1114 | opts->switch_to); | |
1115 | if (opts->cmd) | |
1116 | argv_array_pushf(&child.args, "--cmd=%s", opts->cmd); | |
1117 | if (opts->allow_empty_message) | |
1118 | argv_array_push(&child.args, "--allow-empty-message"); | |
6023c928 | 1119 | if (opts->allow_rerere_autoupdate == RERERE_AUTOUPDATE) |
bc24382c | 1120 | argv_array_push(&child.args, "--rerere-autoupdate"); |
6023c928 | 1121 | else if (opts->allow_rerere_autoupdate == RERERE_NOAUTOUPDATE) |
bc24382c JS |
1122 | argv_array_push(&child.args, "--no-rerere-autoupdate"); |
1123 | if (opts->gpg_sign_opt) | |
1124 | argv_array_push(&child.args, opts->gpg_sign_opt); | |
1125 | if (opts->signoff) | |
1126 | argv_array_push(&child.args, "--signoff"); | |
d421afa0 JS |
1127 | if (opts->reschedule_failed_exec) |
1128 | argv_array_push(&child.args, "--reschedule-failed-exec"); | |
bc24382c JS |
1129 | |
1130 | status = run_command(&child); | |
1131 | goto finished_rebase; | |
1132 | } | |
1133 | ||
21853626 JS |
1134 | if (opts->type == REBASE_AM) { |
1135 | status = run_am(opts); | |
1136 | goto finished_rebase; | |
1137 | } | |
1138 | ||
ac7f467f PK |
1139 | add_var(&script_snippet, "GIT_DIR", absolute_path(get_git_dir())); |
1140 | add_var(&script_snippet, "state_dir", opts->state_dir); | |
1141 | ||
1142 | add_var(&script_snippet, "upstream_name", opts->upstream_name); | |
f9573628 PK |
1143 | add_var(&script_snippet, "upstream", opts->upstream ? |
1144 | oid_to_hex(&opts->upstream->object.oid) : NULL); | |
d4c569f8 PK |
1145 | add_var(&script_snippet, "head_name", |
1146 | opts->head_name ? opts->head_name : "detached HEAD"); | |
ac7f467f | 1147 | add_var(&script_snippet, "orig_head", oid_to_hex(&opts->orig_head)); |
f9573628 PK |
1148 | add_var(&script_snippet, "onto", opts->onto ? |
1149 | oid_to_hex(&opts->onto->object.oid) : NULL); | |
ac7f467f PK |
1150 | add_var(&script_snippet, "onto_name", opts->onto_name); |
1151 | add_var(&script_snippet, "revisions", opts->revisions); | |
1152 | add_var(&script_snippet, "restrict_revision", opts->restrict_revision ? | |
1153 | oid_to_hex(&opts->restrict_revision->object.oid) : NULL); | |
b4c8eb02 PK |
1154 | add_var(&script_snippet, "GIT_QUIET", |
1155 | opts->flags & REBASE_NO_QUIET ? "" : "t"); | |
f5769680 JS |
1156 | sq_quote_argv_pretty(&buf, opts->git_am_opts.argv); |
1157 | add_var(&script_snippet, "git_am_opt", buf.buf); | |
1158 | strbuf_release(&buf); | |
bff014da PK |
1159 | add_var(&script_snippet, "verbose", |
1160 | opts->flags & REBASE_VERBOSE ? "t" : ""); | |
1161 | add_var(&script_snippet, "diffstat", | |
1162 | opts->flags & REBASE_DIFFSTAT ? "t" : ""); | |
1ed9c14f PK |
1163 | add_var(&script_snippet, "force_rebase", |
1164 | opts->flags & REBASE_FORCE ? "t" : ""); | |
e65123a7 PK |
1165 | if (opts->switch_to) |
1166 | add_var(&script_snippet, "switch_to", opts->switch_to); | |
f9573628 | 1167 | add_var(&script_snippet, "action", opts->action ? opts->action : ""); |
73d51ed0 | 1168 | add_var(&script_snippet, "signoff", opts->signoff ? "--signoff" : ""); |
ead98c11 | 1169 | add_var(&script_snippet, "allow_rerere_autoupdate", |
ead98c11 | 1170 | opts->allow_rerere_autoupdate ? |
6023c928 PW |
1171 | opts->allow_rerere_autoupdate == RERERE_AUTOUPDATE ? |
1172 | "--rerere-autoupdate" : "--no-rerere-autoupdate" : ""); | |
002ee2fe | 1173 | add_var(&script_snippet, "keep_empty", opts->keep_empty ? "yes" : ""); |
051910a9 | 1174 | add_var(&script_snippet, "autosquash", opts->autosquash ? "t" : ""); |
12026a41 | 1175 | add_var(&script_snippet, "gpg_sign_opt", opts->gpg_sign_opt); |
68e46d78 | 1176 | add_var(&script_snippet, "cmd", opts->cmd); |
9b3a448b PK |
1177 | add_var(&script_snippet, "allow_empty_message", |
1178 | opts->allow_empty_message ? "--allow-empty-message" : ""); | |
3c3588c7 PK |
1179 | add_var(&script_snippet, "rebase_merges", |
1180 | opts->rebase_merges ? "t" : ""); | |
1181 | add_var(&script_snippet, "rebase_cousins", | |
1182 | opts->rebase_cousins ? "t" : ""); | |
ba1905a5 PK |
1183 | add_var(&script_snippet, "strategy", opts->strategy); |
1184 | add_var(&script_snippet, "strategy_opts", opts->strategy_opts); | |
9dba809a PK |
1185 | add_var(&script_snippet, "rebase_root", opts->root ? "t" : ""); |
1186 | add_var(&script_snippet, "squash_onto", | |
1187 | opts->squash_onto ? oid_to_hex(opts->squash_onto) : ""); | |
cda614e4 PK |
1188 | add_var(&script_snippet, "git_format_patch_opt", |
1189 | opts->git_format_patch_opt.buf); | |
ac7f467f | 1190 | |
3dba9d08 PK |
1191 | if (is_interactive(opts) && |
1192 | !(opts->flags & REBASE_INTERACTIVE_EXPLICIT)) { | |
1193 | strbuf_addstr(&script_snippet, | |
891d4a03 | 1194 | "GIT_SEQUENCE_EDITOR=:; export GIT_SEQUENCE_EDITOR; "); |
3dba9d08 PK |
1195 | opts->autosquash = 0; |
1196 | } | |
ac7f467f PK |
1197 | |
1198 | switch (opts->type) { | |
1199 | case REBASE_AM: | |
1200 | backend = "git-rebase--am"; | |
1201 | backend_func = "git_rebase__am"; | |
1202 | break; | |
ac7f467f PK |
1203 | case REBASE_PRESERVE_MERGES: |
1204 | backend = "git-rebase--preserve-merges"; | |
1205 | backend_func = "git_rebase__preserve_merges"; | |
1206 | break; | |
1207 | default: | |
1208 | BUG("Unhandled rebase type %d", opts->type); | |
1209 | break; | |
1210 | } | |
1211 | ||
1212 | strbuf_addf(&script_snippet, | |
1213 | ". git-sh-setup && . git-rebase--common &&" | |
1214 | " . %s && %s", backend, backend_func); | |
1215 | argv[0] = script_snippet.buf; | |
1216 | ||
1217 | status = run_command_v_opt(argv, RUN_USING_SHELL); | |
bc24382c | 1218 | finished_rebase: |
ac7f467f PK |
1219 | if (opts->dont_finish_rebase) |
1220 | ; /* do nothing */ | |
bc24382c JS |
1221 | else if (opts->type == REBASE_INTERACTIVE) |
1222 | ; /* interactive rebase cleans up after itself */ | |
ac7f467f PK |
1223 | else if (status == 0) { |
1224 | if (!file_exists(state_dir_path("stopped-sha", opts))) | |
1225 | finish_rebase(opts); | |
1226 | } else if (status == 2) { | |
1227 | struct strbuf dir = STRBUF_INIT; | |
1228 | ||
6defce2b | 1229 | apply_autostash(opts); |
ac7f467f PK |
1230 | strbuf_addstr(&dir, opts->state_dir); |
1231 | remove_dir_recursively(&dir, 0); | |
1232 | strbuf_release(&dir); | |
1233 | die("Nothing to do"); | |
1234 | } | |
1235 | ||
1236 | strbuf_release(&script_snippet); | |
1237 | ||
1238 | return status ? -1 : 0; | |
1239 | } | |
1240 | ||
bff014da PK |
1241 | static int rebase_config(const char *var, const char *value, void *data) |
1242 | { | |
1243 | struct rebase_options *opts = data; | |
1244 | ||
1245 | if (!strcmp(var, "rebase.stat")) { | |
1246 | if (git_config_bool(var, value)) | |
1247 | opts->flags |= REBASE_DIFFSTAT; | |
1248 | else | |
1249 | opts->flags &= !REBASE_DIFFSTAT; | |
1250 | return 0; | |
1251 | } | |
1252 | ||
051910a9 PK |
1253 | if (!strcmp(var, "rebase.autosquash")) { |
1254 | opts->autosquash = git_config_bool(var, value); | |
1255 | return 0; | |
1256 | } | |
1257 | ||
12026a41 PK |
1258 | if (!strcmp(var, "commit.gpgsign")) { |
1259 | free(opts->gpg_sign_opt); | |
1260 | opts->gpg_sign_opt = git_config_bool(var, value) ? | |
1261 | xstrdup("-S") : NULL; | |
1262 | return 0; | |
1263 | } | |
1264 | ||
6defce2b PK |
1265 | if (!strcmp(var, "rebase.autostash")) { |
1266 | opts->autostash = git_config_bool(var, value); | |
1267 | return 0; | |
1268 | } | |
1269 | ||
969de3ff JS |
1270 | if (!strcmp(var, "rebase.reschedulefailedexec")) { |
1271 | opts->reschedule_failed_exec = git_config_bool(var, value); | |
1272 | return 0; | |
1273 | } | |
1274 | ||
bff014da PK |
1275 | return git_default_config(var, value, data); |
1276 | } | |
1277 | ||
9a48a615 PK |
1278 | /* |
1279 | * Determines whether the commits in from..to are linear, i.e. contain | |
1280 | * no merge commits. This function *expects* `from` to be an ancestor of | |
1281 | * `to`. | |
1282 | */ | |
1283 | static int is_linear_history(struct commit *from, struct commit *to) | |
1284 | { | |
1285 | while (to && to != from) { | |
1286 | parse_commit(to); | |
1287 | if (!to->parents) | |
1288 | return 1; | |
1289 | if (to->parents->next) | |
1290 | return 0; | |
1291 | to = to->parents->item; | |
1292 | } | |
1293 | return 1; | |
1294 | } | |
1295 | ||
1296 | static int can_fast_forward(struct commit *onto, struct object_id *head_oid, | |
1297 | struct object_id *merge_base) | |
1298 | { | |
1299 | struct commit *head = lookup_commit(the_repository, head_oid); | |
1300 | struct commit_list *merge_bases; | |
1301 | int res; | |
1302 | ||
1303 | if (!head) | |
1304 | return 0; | |
1305 | ||
1306 | merge_bases = get_merge_bases(onto, head); | |
1307 | if (merge_bases && !merge_bases->next) { | |
1308 | oidcpy(merge_base, &merge_bases->item->object.oid); | |
b17ca8f9 | 1309 | res = oideq(merge_base, &onto->object.oid); |
9a48a615 PK |
1310 | } else { |
1311 | oidcpy(merge_base, &null_oid); | |
1312 | res = 0; | |
1313 | } | |
1314 | free_commit_list(merge_bases); | |
1315 | return res && is_linear_history(onto, head); | |
1316 | } | |
1317 | ||
361badd3 PK |
1318 | /* -i followed by -m is still -i */ |
1319 | static int parse_opt_merge(const struct option *opt, const char *arg, int unset) | |
1320 | { | |
1321 | struct rebase_options *opts = opt->value; | |
1322 | ||
517fe807 JK |
1323 | BUG_ON_OPT_NEG(unset); |
1324 | BUG_ON_OPT_ARG(arg); | |
1325 | ||
361badd3 PK |
1326 | if (!is_interactive(opts)) |
1327 | opts->type = REBASE_MERGE; | |
1328 | ||
1329 | return 0; | |
1330 | } | |
1331 | ||
1332 | /* -i followed by -p is still explicitly interactive, but -p alone is not */ | |
1333 | static int parse_opt_interactive(const struct option *opt, const char *arg, | |
1334 | int unset) | |
1335 | { | |
1336 | struct rebase_options *opts = opt->value; | |
1337 | ||
517fe807 JK |
1338 | BUG_ON_OPT_NEG(unset); |
1339 | BUG_ON_OPT_ARG(arg); | |
1340 | ||
361badd3 PK |
1341 | opts->type = REBASE_INTERACTIVE; |
1342 | opts->flags |= REBASE_INTERACTIVE_EXPLICIT; | |
1343 | ||
1344 | return 0; | |
1345 | } | |
1346 | ||
8f5986d9 PK |
1347 | static void NORETURN error_on_missing_default_upstream(void) |
1348 | { | |
1349 | struct branch *current_branch = branch_get(NULL); | |
1350 | ||
1351 | printf(_("%s\n" | |
1352 | "Please specify which branch you want to rebase against.\n" | |
1353 | "See git-rebase(1) for details.\n" | |
1354 | "\n" | |
1355 | " git rebase '<branch>'\n" | |
1356 | "\n"), | |
1357 | current_branch ? _("There is no tracking information for " | |
1358 | "the current branch.") : | |
1359 | _("You are not currently on a branch.")); | |
1360 | ||
1361 | if (current_branch) { | |
1362 | const char *remote = current_branch->remote_name; | |
1363 | ||
1364 | if (!remote) | |
1365 | remote = _("<remote>"); | |
1366 | ||
1367 | printf(_("If you wish to set tracking information for this " | |
1368 | "branch you can do so with:\n" | |
1369 | "\n" | |
1370 | " git branch --set-upstream-to=%s/<branch> %s\n" | |
1371 | "\n"), | |
1372 | remote, current_branch->name); | |
1373 | } | |
1374 | exit(1); | |
1375 | } | |
1376 | ||
13a5a9f0 JS |
1377 | static void set_reflog_action(struct rebase_options *options) |
1378 | { | |
1379 | const char *env; | |
1380 | struct strbuf buf = STRBUF_INIT; | |
1381 | ||
1382 | if (!is_interactive(options)) | |
1383 | return; | |
1384 | ||
1385 | env = getenv(GIT_REFLOG_ACTION_ENVIRONMENT); | |
1386 | if (env && strcmp("rebase", env)) | |
1387 | return; /* only override it if it is "rebase" */ | |
1388 | ||
1389 | strbuf_addf(&buf, "rebase -i (%s)", options->action); | |
1390 | setenv(GIT_REFLOG_ACTION_ENVIRONMENT, buf.buf, 1); | |
1391 | strbuf_release(&buf); | |
1392 | } | |
1393 | ||
c762aada PW |
1394 | static int check_exec_cmd(const char *cmd) |
1395 | { | |
1396 | if (strchr(cmd, '\n')) | |
1397 | return error(_("exec commands cannot contain newlines")); | |
1398 | ||
1399 | /* Does the command consist purely of whitespace? */ | |
1400 | if (!cmd[strspn(cmd, " \t\r\f\v")]) | |
1401 | return error(_("empty exec command")); | |
1402 | ||
1403 | return 0; | |
1404 | } | |
1405 | ||
1406 | ||
55071ea2 PK |
1407 | int cmd_rebase(int argc, const char **argv, const char *prefix) |
1408 | { | |
73fdc535 | 1409 | struct rebase_options options = REBASE_OPTIONS_INIT; |
ac7f467f | 1410 | const char *branch_name; |
f9573628 | 1411 | int ret, flags, total_argc, in_progress = 0; |
06e4775a | 1412 | int ok_to_skip_pre_rebase = 0; |
ac7f467f PK |
1413 | struct strbuf msg = STRBUF_INIT; |
1414 | struct strbuf revisions = STRBUF_INIT; | |
c54dacb5 | 1415 | struct strbuf buf = STRBUF_INIT; |
075bc852 | 1416 | struct object_id merge_base; |
f9573628 PK |
1417 | enum { |
1418 | NO_ACTION, | |
1419 | ACTION_CONTINUE, | |
122420c2 | 1420 | ACTION_SKIP, |
5e5d9619 | 1421 | ACTION_ABORT, |
5a614945 | 1422 | ACTION_QUIT, |
51e9ea6d PK |
1423 | ACTION_EDIT_TODO, |
1424 | ACTION_SHOW_CURRENT_PATCH, | |
f9573628 | 1425 | } action = NO_ACTION; |
146839c4 PW |
1426 | static const char *action_names[] = { "undefined", |
1427 | "continue", | |
1428 | "skip", | |
1429 | "abort", | |
1430 | "quit", | |
1431 | "edit_todo", | |
1432 | "show_current_patch" }; | |
12026a41 | 1433 | const char *gpg_sign = NULL; |
68e46d78 | 1434 | struct string_list exec = STRING_LIST_INIT_NODUP; |
3c3588c7 | 1435 | const char *rebase_merges = NULL; |
92d0d74e | 1436 | int fork_point = -1; |
ba1905a5 | 1437 | struct string_list strategy_options = STRING_LIST_INIT_NODUP; |
9dba809a PK |
1438 | struct object_id squash_onto; |
1439 | char *squash_onto_name = NULL; | |
f28d40d3 PK |
1440 | struct option builtin_rebase_options[] = { |
1441 | OPT_STRING(0, "onto", &options.onto_name, | |
1442 | N_("revision"), | |
1443 | N_("rebase onto given branch instead of upstream")), | |
06e4775a PK |
1444 | OPT_BOOL(0, "no-verify", &ok_to_skip_pre_rebase, |
1445 | N_("allow pre-rebase hook to run")), | |
b4c8eb02 PK |
1446 | OPT_NEGBIT('q', "quiet", &options.flags, |
1447 | N_("be quiet. implies --no-stat"), | |
bff014da PK |
1448 | REBASE_NO_QUIET| REBASE_VERBOSE | REBASE_DIFFSTAT), |
1449 | OPT_BIT('v', "verbose", &options.flags, | |
1450 | N_("display a diffstat of what changed upstream"), | |
1451 | REBASE_NO_QUIET | REBASE_VERBOSE | REBASE_DIFFSTAT), | |
1452 | {OPTION_NEGBIT, 'n', "no-stat", &options.flags, NULL, | |
1453 | N_("do not show diffstat of what changed upstream"), | |
1454 | PARSE_OPT_NOARG, NULL, REBASE_DIFFSTAT }, | |
73d51ed0 PK |
1455 | OPT_BOOL(0, "signoff", &options.signoff, |
1456 | N_("add a Signed-off-by: line to each commit")), | |
f5769680 JS |
1457 | OPT_PASSTHRU_ARGV(0, "ignore-whitespace", &options.git_am_opts, |
1458 | NULL, N_("passed to 'git am'"), | |
1459 | PARSE_OPT_NOARG), | |
1460 | OPT_PASSTHRU_ARGV(0, "committer-date-is-author-date", | |
1461 | &options.git_am_opts, NULL, | |
1462 | N_("passed to 'git am'"), PARSE_OPT_NOARG), | |
1463 | OPT_PASSTHRU_ARGV(0, "ignore-date", &options.git_am_opts, NULL, | |
1464 | N_("passed to 'git am'"), PARSE_OPT_NOARG), | |
1465 | OPT_PASSTHRU_ARGV('C', NULL, &options.git_am_opts, N_("n"), | |
1466 | N_("passed to 'git apply'"), 0), | |
1467 | OPT_PASSTHRU_ARGV(0, "whitespace", &options.git_am_opts, | |
1468 | N_("action"), N_("passed to 'git apply'"), 0), | |
1ed9c14f PK |
1469 | OPT_BIT('f', "force-rebase", &options.flags, |
1470 | N_("cherry-pick all commits, even if unchanged"), | |
1471 | REBASE_FORCE), | |
1472 | OPT_BIT(0, "no-ff", &options.flags, | |
1473 | N_("cherry-pick all commits, even if unchanged"), | |
1474 | REBASE_FORCE), | |
f9573628 PK |
1475 | OPT_CMDMODE(0, "continue", &action, N_("continue"), |
1476 | ACTION_CONTINUE), | |
122420c2 PK |
1477 | OPT_CMDMODE(0, "skip", &action, |
1478 | N_("skip current patch and continue"), ACTION_SKIP), | |
5e5d9619 PK |
1479 | OPT_CMDMODE(0, "abort", &action, |
1480 | N_("abort and check out the original branch"), | |
1481 | ACTION_ABORT), | |
5a614945 PK |
1482 | OPT_CMDMODE(0, "quit", &action, |
1483 | N_("abort but keep HEAD where it is"), ACTION_QUIT), | |
51e9ea6d PK |
1484 | OPT_CMDMODE(0, "edit-todo", &action, N_("edit the todo list " |
1485 | "during an interactive rebase"), ACTION_EDIT_TODO), | |
1486 | OPT_CMDMODE(0, "show-current-patch", &action, | |
1487 | N_("show the patch file being applied or merged"), | |
1488 | ACTION_SHOW_CURRENT_PATCH), | |
361badd3 PK |
1489 | { OPTION_CALLBACK, 'm', "merge", &options, NULL, |
1490 | N_("use merging strategies to rebase"), | |
1491 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, | |
1492 | parse_opt_merge }, | |
1493 | { OPTION_CALLBACK, 'i', "interactive", &options, NULL, | |
1494 | N_("let the user edit the list of commits to rebase"), | |
1495 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, | |
1496 | parse_opt_interactive }, | |
1497 | OPT_SET_INT('p', "preserve-merges", &options.type, | |
1498 | N_("try to recreate merges instead of ignoring " | |
1499 | "them"), REBASE_PRESERVE_MERGES), | |
6023c928 | 1500 | OPT_RERERE_AUTOUPDATE(&options.allow_rerere_autoupdate), |
002ee2fe PK |
1501 | OPT_BOOL('k', "keep-empty", &options.keep_empty, |
1502 | N_("preserve empty commits during rebase")), | |
051910a9 PK |
1503 | OPT_BOOL(0, "autosquash", &options.autosquash, |
1504 | N_("move commits that begin with " | |
1505 | "squash!/fixup! under -i")), | |
12026a41 PK |
1506 | { OPTION_STRING, 'S', "gpg-sign", &gpg_sign, N_("key-id"), |
1507 | N_("GPG-sign commits"), | |
1508 | PARSE_OPT_OPTARG, NULL, (intptr_t) "" }, | |
6defce2b PK |
1509 | OPT_BOOL(0, "autostash", &options.autostash, |
1510 | N_("automatically stash/stash pop before and after")), | |
68e46d78 PK |
1511 | OPT_STRING_LIST('x', "exec", &exec, N_("exec"), |
1512 | N_("add exec lines after each commit of the " | |
1513 | "editable list")), | |
9b3a448b PK |
1514 | OPT_BOOL(0, "allow-empty-message", |
1515 | &options.allow_empty_message, | |
1516 | N_("allow rebasing commits with empty messages")), | |
3c3588c7 PK |
1517 | {OPTION_STRING, 'r', "rebase-merges", &rebase_merges, |
1518 | N_("mode"), | |
1519 | N_("try to rebase merges instead of skipping them"), | |
1520 | PARSE_OPT_OPTARG, NULL, (intptr_t)""}, | |
92d0d74e PK |
1521 | OPT_BOOL(0, "fork-point", &fork_point, |
1522 | N_("use 'merge-base --fork-point' to refine upstream")), | |
ba1905a5 PK |
1523 | OPT_STRING('s', "strategy", &options.strategy, |
1524 | N_("strategy"), N_("use the given merge strategy")), | |
1525 | OPT_STRING_LIST('X', "strategy-option", &strategy_options, | |
1526 | N_("option"), | |
1527 | N_("pass the argument through to the merge " | |
1528 | "strategy")), | |
9dba809a PK |
1529 | OPT_BOOL(0, "root", &options.root, |
1530 | N_("rebase all reachable commits up to the root(s)")), | |
d421afa0 JS |
1531 | OPT_BOOL(0, "reschedule-failed-exec", |
1532 | &options.reschedule_failed_exec, | |
1533 | N_("automatically re-schedule any `exec` that fails")), | |
f28d40d3 PK |
1534 | OPT_END(), |
1535 | }; | |
f5769680 | 1536 | int i; |
ac7f467f | 1537 | |
55071ea2 PK |
1538 | /* |
1539 | * NEEDSWORK: Once the builtin rebase has been tested enough | |
1540 | * and git-legacy-rebase.sh is retired to contrib/, this preamble | |
1541 | * can be removed. | |
1542 | */ | |
1543 | ||
1544 | if (!use_builtin_rebase()) { | |
1545 | const char *path = mkpath("%s/git-legacy-rebase", | |
1546 | git_exec_path()); | |
1547 | ||
1548 | if (sane_execvp(path, (char **)argv) < 0) | |
1549 | die_errno(_("could not exec %s"), path); | |
1550 | else | |
1551 | BUG("sane_execvp() returned???"); | |
1552 | } | |
1553 | ||
f28d40d3 PK |
1554 | if (argc == 2 && !strcmp(argv[1], "-h")) |
1555 | usage_with_options(builtin_rebase_usage, | |
1556 | builtin_rebase_options); | |
1557 | ||
55071ea2 PK |
1558 | prefix = setup_git_directory(); |
1559 | trace_repo_setup(prefix); | |
1560 | setup_work_tree(); | |
1561 | ||
73fdc535 | 1562 | options.allow_empty_message = 1; |
bff014da PK |
1563 | git_config(rebase_config, &options); |
1564 | ||
0eabf4b9 PK |
1565 | strbuf_reset(&buf); |
1566 | strbuf_addf(&buf, "%s/applying", apply_dir()); | |
1567 | if(file_exists(buf.buf)) | |
1568 | die(_("It looks like 'git am' is in progress. Cannot rebase.")); | |
1569 | ||
c54dacb5 PK |
1570 | if (is_directory(apply_dir())) { |
1571 | options.type = REBASE_AM; | |
1572 | options.state_dir = apply_dir(); | |
1573 | } else if (is_directory(merge_dir())) { | |
1574 | strbuf_reset(&buf); | |
1575 | strbuf_addf(&buf, "%s/rewritten", merge_dir()); | |
1576 | if (is_directory(buf.buf)) { | |
1577 | options.type = REBASE_PRESERVE_MERGES; | |
1578 | options.flags |= REBASE_INTERACTIVE_EXPLICIT; | |
1579 | } else { | |
1580 | strbuf_reset(&buf); | |
1581 | strbuf_addf(&buf, "%s/interactive", merge_dir()); | |
1582 | if(file_exists(buf.buf)) { | |
1583 | options.type = REBASE_INTERACTIVE; | |
1584 | options.flags |= REBASE_INTERACTIVE_EXPLICIT; | |
1585 | } else | |
1586 | options.type = REBASE_MERGE; | |
1587 | } | |
1588 | options.state_dir = merge_dir(); | |
1589 | } | |
1590 | ||
1591 | if (options.type != REBASE_UNSPECIFIED) | |
1592 | in_progress = 1; | |
1593 | ||
f9573628 | 1594 | total_argc = argc; |
f28d40d3 PK |
1595 | argc = parse_options(argc, argv, prefix, |
1596 | builtin_rebase_options, | |
1597 | builtin_rebase_usage, 0); | |
1598 | ||
f9573628 PK |
1599 | if (action != NO_ACTION && total_argc != 2) { |
1600 | usage_with_options(builtin_rebase_usage, | |
1601 | builtin_rebase_options); | |
1602 | } | |
1603 | ||
f28d40d3 PK |
1604 | if (argc > 2) |
1605 | usage_with_options(builtin_rebase_usage, | |
1606 | builtin_rebase_options); | |
ac7f467f | 1607 | |
d732a570 PK |
1608 | if (action != NO_ACTION && !in_progress) |
1609 | die(_("No rebase in progress?")); | |
13a5a9f0 | 1610 | setenv(GIT_REFLOG_ACTION_ENVIRONMENT, "rebase", 0); |
d732a570 | 1611 | |
51e9ea6d PK |
1612 | if (action == ACTION_EDIT_TODO && !is_interactive(&options)) |
1613 | die(_("The --edit-todo action can only be used during " | |
1614 | "interactive rebase.")); | |
1615 | ||
b3a5d5a8 JH |
1616 | if (trace2_is_enabled()) { |
1617 | if (is_interactive(&options)) | |
1618 | trace2_cmd_mode("interactive"); | |
1619 | else if (exec.nr) | |
1620 | trace2_cmd_mode("interactive-exec"); | |
1621 | else | |
1622 | trace2_cmd_mode(action_names[action]); | |
1623 | } | |
1624 | ||
f9573628 PK |
1625 | switch (action) { |
1626 | case ACTION_CONTINUE: { | |
1627 | struct object_id head; | |
1628 | struct lock_file lock_file = LOCK_INIT; | |
1629 | int fd; | |
1630 | ||
1631 | options.action = "continue"; | |
13a5a9f0 | 1632 | set_reflog_action(&options); |
f9573628 PK |
1633 | |
1634 | /* Sanity check */ | |
1635 | if (get_oid("HEAD", &head)) | |
1636 | die(_("Cannot read HEAD")); | |
1637 | ||
1638 | fd = hold_locked_index(&lock_file, 0); | |
e1ff0a32 | 1639 | if (repo_read_index(the_repository) < 0) |
f9573628 PK |
1640 | die(_("could not read index")); |
1641 | refresh_index(the_repository->index, REFRESH_QUIET, NULL, NULL, | |
1642 | NULL); | |
1643 | if (0 <= fd) | |
1b0d968b | 1644 | repo_update_index_if_able(the_repository, &lock_file); |
f9573628 PK |
1645 | rollback_lock_file(&lock_file); |
1646 | ||
5b02ca38 | 1647 | if (has_unstaged_changes(the_repository, 1)) { |
f9573628 PK |
1648 | puts(_("You must edit all merge conflicts and then\n" |
1649 | "mark them as resolved using git add")); | |
1650 | exit(1); | |
1651 | } | |
1652 | if (read_basic_state(&options)) | |
1653 | exit(1); | |
1654 | goto run_rebase; | |
1655 | } | |
122420c2 PK |
1656 | case ACTION_SKIP: { |
1657 | struct string_list merge_rr = STRING_LIST_INIT_DUP; | |
1658 | ||
1659 | options.action = "skip"; | |
13a5a9f0 | 1660 | set_reflog_action(&options); |
122420c2 | 1661 | |
55e6b354 | 1662 | rerere_clear(the_repository, &merge_rr); |
122420c2 PK |
1663 | string_list_clear(&merge_rr, 1); |
1664 | ||
bac2a1e3 JS |
1665 | if (reset_head(NULL, "reset", NULL, RESET_HEAD_HARD, |
1666 | NULL, NULL) < 0) | |
122420c2 | 1667 | die(_("could not discard worktree changes")); |
cde55548 | 1668 | remove_branch_state(the_repository); |
122420c2 PK |
1669 | if (read_basic_state(&options)) |
1670 | exit(1); | |
1671 | goto run_rebase; | |
1672 | } | |
5e5d9619 PK |
1673 | case ACTION_ABORT: { |
1674 | struct string_list merge_rr = STRING_LIST_INIT_DUP; | |
1675 | options.action = "abort"; | |
13a5a9f0 | 1676 | set_reflog_action(&options); |
5e5d9619 | 1677 | |
55e6b354 | 1678 | rerere_clear(the_repository, &merge_rr); |
5e5d9619 PK |
1679 | string_list_clear(&merge_rr, 1); |
1680 | ||
1681 | if (read_basic_state(&options)) | |
1682 | exit(1); | |
1683 | if (reset_head(&options.orig_head, "reset", | |
bac2a1e3 JS |
1684 | options.head_name, RESET_HEAD_HARD, |
1685 | NULL, NULL) < 0) | |
5e5d9619 PK |
1686 | die(_("could not move back to %s"), |
1687 | oid_to_hex(&options.orig_head)); | |
cde55548 | 1688 | remove_branch_state(the_repository); |
5e5d9619 PK |
1689 | ret = finish_rebase(&options); |
1690 | goto cleanup; | |
1691 | } | |
5a614945 PK |
1692 | case ACTION_QUIT: { |
1693 | strbuf_reset(&buf); | |
1694 | strbuf_addstr(&buf, options.state_dir); | |
1695 | ret = !!remove_dir_recursively(&buf, 0); | |
1696 | if (ret) | |
1697 | die(_("could not remove '%s'"), options.state_dir); | |
1698 | goto cleanup; | |
1699 | } | |
51e9ea6d PK |
1700 | case ACTION_EDIT_TODO: |
1701 | options.action = "edit-todo"; | |
1702 | options.dont_finish_rebase = 1; | |
1703 | goto run_rebase; | |
1704 | case ACTION_SHOW_CURRENT_PATCH: | |
1705 | options.action = "show-current-patch"; | |
1706 | options.dont_finish_rebase = 1; | |
1707 | goto run_rebase; | |
1708 | case NO_ACTION: | |
1709 | break; | |
f9573628 | 1710 | default: |
51e9ea6d | 1711 | BUG("action: %d", action); |
f9573628 PK |
1712 | } |
1713 | ||
c54dacb5 PK |
1714 | /* Make sure no rebase is in progress */ |
1715 | if (in_progress) { | |
1716 | const char *last_slash = strrchr(options.state_dir, '/'); | |
1717 | const char *state_dir_base = | |
1718 | last_slash ? last_slash + 1 : options.state_dir; | |
1719 | const char *cmd_live_rebase = | |
1720 | "git rebase (--continue | --abort | --skip)"; | |
1721 | strbuf_reset(&buf); | |
1722 | strbuf_addf(&buf, "rm -fr \"%s\"", options.state_dir); | |
1723 | die(_("It seems that there is already a %s directory, and\n" | |
1724 | "I wonder if you are in the middle of another rebase. " | |
1725 | "If that is the\n" | |
1726 | "case, please try\n\t%s\n" | |
1727 | "If that is not the case, please\n\t%s\n" | |
1728 | "and run me again. I am stopping in case you still " | |
1729 | "have something\n" | |
1730 | "valuable there.\n"), | |
1731 | state_dir_base, cmd_live_rebase, buf.buf); | |
1732 | } | |
1733 | ||
f5769680 | 1734 | for (i = 0; i < options.git_am_opts.argc; i++) { |
04519d72 | 1735 | const char *option = options.git_am_opts.argv[i], *p; |
f5769680 JS |
1736 | if (!strcmp(option, "--committer-date-is-author-date") || |
1737 | !strcmp(option, "--ignore-date") || | |
1738 | !strcmp(option, "--whitespace=fix") || | |
1739 | !strcmp(option, "--whitespace=strip")) | |
1740 | options.flags |= REBASE_FORCE; | |
04519d72 JS |
1741 | else if (skip_prefix(option, "-C", &p)) { |
1742 | while (*p) | |
1743 | if (!isdigit(*(p++))) | |
1744 | die(_("switch `C' expects a " | |
1745 | "numerical value")); | |
1746 | } else if (skip_prefix(option, "--whitespace=", &p)) { | |
1747 | if (*p && strcmp(p, "warn") && strcmp(p, "nowarn") && | |
1748 | strcmp(p, "error") && strcmp(p, "error-all")) | |
1749 | die("Invalid whitespace option: '%s'", p); | |
1750 | } | |
38dbcef2 PK |
1751 | } |
1752 | ||
c762aada PW |
1753 | for (i = 0; i < exec.nr; i++) |
1754 | if (check_exec_cmd(exec.items[i].string)) | |
1755 | exit(1); | |
1756 | ||
f5769680 JS |
1757 | if (!(options.flags & REBASE_NO_QUIET)) |
1758 | argv_array_push(&options.git_am_opts, "-q"); | |
53f9e5be | 1759 | |
002ee2fe PK |
1760 | if (options.keep_empty) |
1761 | imply_interactive(&options, "--keep-empty"); | |
1762 | ||
12026a41 PK |
1763 | if (gpg_sign) { |
1764 | free(options.gpg_sign_opt); | |
1765 | options.gpg_sign_opt = xstrfmt("-S%s", gpg_sign); | |
1766 | } | |
1767 | ||
68e46d78 PK |
1768 | if (exec.nr) { |
1769 | int i; | |
1770 | ||
1771 | imply_interactive(&options, "--exec"); | |
1772 | ||
1773 | strbuf_reset(&buf); | |
1774 | for (i = 0; i < exec.nr; i++) | |
1775 | strbuf_addf(&buf, "exec %s\n", exec.items[i].string); | |
1776 | options.cmd = xstrdup(buf.buf); | |
1777 | } | |
1778 | ||
3c3588c7 PK |
1779 | if (rebase_merges) { |
1780 | if (!*rebase_merges) | |
1781 | ; /* default mode; do nothing */ | |
1782 | else if (!strcmp("rebase-cousins", rebase_merges)) | |
1783 | options.rebase_cousins = 1; | |
1784 | else if (strcmp("no-rebase-cousins", rebase_merges)) | |
1785 | die(_("Unknown mode: %s"), rebase_merges); | |
1786 | options.rebase_merges = 1; | |
1787 | imply_interactive(&options, "--rebase-merges"); | |
1788 | } | |
1789 | ||
ba1905a5 PK |
1790 | if (strategy_options.nr) { |
1791 | int i; | |
1792 | ||
1793 | if (!options.strategy) | |
1794 | options.strategy = "recursive"; | |
1795 | ||
1796 | strbuf_reset(&buf); | |
1797 | for (i = 0; i < strategy_options.nr; i++) | |
1798 | strbuf_addf(&buf, " --%s", | |
1799 | strategy_options.items[i].string); | |
1800 | options.strategy_opts = xstrdup(buf.buf); | |
1801 | } | |
1802 | ||
1803 | if (options.strategy) { | |
1804 | options.strategy = xstrdup(options.strategy); | |
1805 | switch (options.type) { | |
1806 | case REBASE_AM: | |
1807 | die(_("--strategy requires --merge or --interactive")); | |
1808 | case REBASE_MERGE: | |
1809 | case REBASE_INTERACTIVE: | |
1810 | case REBASE_PRESERVE_MERGES: | |
1811 | /* compatible */ | |
1812 | break; | |
1813 | case REBASE_UNSPECIFIED: | |
1814 | options.type = REBASE_MERGE; | |
1815 | break; | |
1816 | default: | |
1817 | BUG("unhandled rebase type (%d)", options.type); | |
1818 | } | |
1819 | } | |
1820 | ||
68aa495b EN |
1821 | if (options.type == REBASE_MERGE) |
1822 | imply_interactive(&options, "--merge"); | |
1823 | ||
9dba809a PK |
1824 | if (options.root && !options.onto_name) |
1825 | imply_interactive(&options, "--root without --onto"); | |
1826 | ||
cda614e4 PK |
1827 | if (isatty(2) && options.flags & REBASE_NO_QUIET) |
1828 | strbuf_addstr(&options.git_format_patch_opt, " --progress"); | |
1829 | ||
ac7f467f PK |
1830 | switch (options.type) { |
1831 | case REBASE_MERGE: | |
1832 | case REBASE_INTERACTIVE: | |
1833 | case REBASE_PRESERVE_MERGES: | |
1834 | options.state_dir = merge_dir(); | |
1835 | break; | |
1836 | case REBASE_AM: | |
1837 | options.state_dir = apply_dir(); | |
1838 | break; | |
1839 | default: | |
1840 | /* the default rebase backend is `--am` */ | |
1841 | options.type = REBASE_AM; | |
1842 | options.state_dir = apply_dir(); | |
1843 | break; | |
1844 | } | |
1845 | ||
d421afa0 | 1846 | if (options.reschedule_failed_exec && !is_interactive(&options)) |
32ceace3 | 1847 | die(_("%s requires an interactive rebase"), "--reschedule-failed-exec"); |
d421afa0 | 1848 | |
f5769680 | 1849 | if (options.git_am_opts.argc) { |
b361bd75 | 1850 | /* all am options except -q are compatible only with --am */ |
f5769680 JS |
1851 | for (i = options.git_am_opts.argc - 1; i >= 0; i--) |
1852 | if (strcmp(options.git_am_opts.argv[i], "-q")) | |
1853 | break; | |
b361bd75 | 1854 | |
f5769680 | 1855 | if (is_interactive(&options) && i >= 0) |
68aa495b EN |
1856 | die(_("cannot combine am options with either " |
1857 | "interactive or merge options")); | |
b361bd75 PK |
1858 | } |
1859 | ||
73d51ed0 PK |
1860 | if (options.signoff) { |
1861 | if (options.type == REBASE_PRESERVE_MERGES) | |
1862 | die("cannot combine '--signoff' with " | |
1863 | "'--preserve-merges'"); | |
f5769680 | 1864 | argv_array_push(&options.git_am_opts, "--signoff"); |
73d51ed0 PK |
1865 | options.flags |= REBASE_FORCE; |
1866 | } | |
1867 | ||
d421afa0 | 1868 | if (options.type == REBASE_PRESERVE_MERGES) { |
b361bd75 PK |
1869 | /* |
1870 | * Note: incompatibility with --signoff handled in signoff block above | |
1871 | * Note: incompatibility with --interactive is just a strong warning; | |
1872 | * git-rebase.txt caveats with "unless you know what you are doing" | |
1873 | */ | |
1874 | if (options.rebase_merges) | |
c913c596 | 1875 | die(_("cannot combine '--preserve-merges' with " |
b361bd75 PK |
1876 | "'--rebase-merges'")); |
1877 | ||
d421afa0 JS |
1878 | if (options.reschedule_failed_exec) |
1879 | die(_("error: cannot combine '--preserve-merges' with " | |
1880 | "'--reschedule-failed-exec'")); | |
1881 | } | |
1882 | ||
b361bd75 PK |
1883 | if (options.rebase_merges) { |
1884 | if (strategy_options.nr) | |
c913c596 | 1885 | die(_("cannot combine '--rebase-merges' with " |
b361bd75 PK |
1886 | "'--strategy-option'")); |
1887 | if (options.strategy) | |
c913c596 | 1888 | die(_("cannot combine '--rebase-merges' with " |
b361bd75 PK |
1889 | "'--strategy'")); |
1890 | } | |
1891 | ||
ac7f467f | 1892 | if (!options.root) { |
8f5986d9 PK |
1893 | if (argc < 1) { |
1894 | struct branch *branch; | |
1895 | ||
1896 | branch = branch_get(NULL); | |
1897 | options.upstream_name = branch_get_upstream(branch, | |
1898 | NULL); | |
1899 | if (!options.upstream_name) | |
1900 | error_on_missing_default_upstream(); | |
1901 | if (fork_point < 0) | |
1902 | fork_point = 1; | |
1903 | } else { | |
f28d40d3 | 1904 | options.upstream_name = argv[0]; |
ac7f467f PK |
1905 | argc--; |
1906 | argv++; | |
1907 | if (!strcmp(options.upstream_name, "-")) | |
1908 | options.upstream_name = "@{-1}"; | |
1909 | } | |
1910 | options.upstream = peel_committish(options.upstream_name); | |
1911 | if (!options.upstream) | |
1912 | die(_("invalid upstream '%s'"), options.upstream_name); | |
06e4775a | 1913 | options.upstream_arg = options.upstream_name; |
9dba809a PK |
1914 | } else { |
1915 | if (!options.onto_name) { | |
1916 | if (commit_tree("", 0, the_hash_algo->empty_tree, NULL, | |
1917 | &squash_onto, NULL, NULL) < 0) | |
1918 | die(_("Could not create new root commit")); | |
1919 | options.squash_onto = &squash_onto; | |
1920 | options.onto_name = squash_onto_name = | |
1921 | xstrdup(oid_to_hex(&squash_onto)); | |
1922 | } | |
1923 | options.upstream_name = NULL; | |
1924 | options.upstream = NULL; | |
1925 | if (argc > 1) | |
1926 | usage_with_options(builtin_rebase_usage, | |
1927 | builtin_rebase_options); | |
1928 | options.upstream_arg = "--root"; | |
1929 | } | |
ac7f467f PK |
1930 | |
1931 | /* Make sure the branch to rebase onto is valid. */ | |
1932 | if (!options.onto_name) | |
1933 | options.onto_name = options.upstream_name; | |
1934 | if (strstr(options.onto_name, "...")) { | |
075bc852 PK |
1935 | if (get_oid_mb(options.onto_name, &merge_base) < 0) |
1936 | die(_("'%s': need exactly one merge base"), | |
1937 | options.onto_name); | |
1938 | options.onto = lookup_commit_or_die(&merge_base, | |
1939 | options.onto_name); | |
ac7f467f PK |
1940 | } else { |
1941 | options.onto = peel_committish(options.onto_name); | |
1942 | if (!options.onto) | |
1943 | die(_("Does not point to a valid commit '%s'"), | |
1944 | options.onto_name); | |
1945 | } | |
1946 | ||
1947 | /* | |
1948 | * If the branch to rebase is given, that is the branch we will rebase | |
1949 | * branch_name -- branch/commit being rebased, or | |
1950 | * HEAD (already detached) | |
1951 | * orig_head -- commit object name of tip of the branch before rebasing | |
d4c569f8 | 1952 | * head_name -- refs/heads/<that-branch> or NULL (detached HEAD) |
ac7f467f | 1953 | */ |
e65123a7 PK |
1954 | if (argc == 1) { |
1955 | /* Is it "rebase other branchname" or "rebase other commit"? */ | |
1956 | branch_name = argv[0]; | |
1957 | options.switch_to = argv[0]; | |
1958 | ||
1959 | /* Is it a local branch? */ | |
1960 | strbuf_reset(&buf); | |
1961 | strbuf_addf(&buf, "refs/heads/%s", branch_name); | |
1962 | if (!read_ref(buf.buf, &options.orig_head)) | |
1963 | options.head_name = xstrdup(buf.buf); | |
1964 | /* If not is it a valid ref (branch or commit)? */ | |
1965 | else if (!get_oid(branch_name, &options.orig_head)) | |
1966 | options.head_name = NULL; | |
1967 | else | |
1968 | die(_("fatal: no such branch/commit '%s'"), | |
1969 | branch_name); | |
1970 | } else if (argc == 0) { | |
ac7f467f PK |
1971 | /* Do not need to switch branches, we are already on it. */ |
1972 | options.head_name = | |
1973 | xstrdup_or_null(resolve_ref_unsafe("HEAD", 0, NULL, | |
1974 | &flags)); | |
1975 | if (!options.head_name) | |
1976 | die(_("No such ref: %s"), "HEAD"); | |
1977 | if (flags & REF_ISSYMREF) { | |
1978 | if (!skip_prefix(options.head_name, | |
1979 | "refs/heads/", &branch_name)) | |
1980 | branch_name = options.head_name; | |
1981 | ||
1982 | } else { | |
d4c569f8 PK |
1983 | free(options.head_name); |
1984 | options.head_name = NULL; | |
ac7f467f PK |
1985 | branch_name = "HEAD"; |
1986 | } | |
1987 | if (get_oid("HEAD", &options.orig_head)) | |
1988 | die(_("Could not resolve HEAD to a revision")); | |
e65123a7 PK |
1989 | } else |
1990 | BUG("unexpected number of arguments left to parse"); | |
ac7f467f | 1991 | |
92d0d74e PK |
1992 | if (fork_point > 0) { |
1993 | struct commit *head = | |
1994 | lookup_commit_reference(the_repository, | |
1995 | &options.orig_head); | |
1996 | options.restrict_revision = | |
1997 | get_fork_point(options.upstream_name, head); | |
1998 | } | |
1999 | ||
e1ff0a32 | 2000 | if (repo_read_index(the_repository) < 0) |
e0333e5c PK |
2001 | die(_("could not read index")); |
2002 | ||
6defce2b PK |
2003 | if (options.autostash) { |
2004 | struct lock_file lock_file = LOCK_INIT; | |
2005 | int fd; | |
2006 | ||
2007 | fd = hold_locked_index(&lock_file, 0); | |
2008 | refresh_cache(REFRESH_QUIET); | |
2009 | if (0 <= fd) | |
1b0d968b | 2010 | repo_update_index_if_able(the_repository, &lock_file); |
6defce2b PK |
2011 | rollback_lock_file(&lock_file); |
2012 | ||
5b02ca38 NTND |
2013 | if (has_unstaged_changes(the_repository, 1) || |
2014 | has_uncommitted_changes(the_repository, 1)) { | |
6defce2b PK |
2015 | const char *autostash = |
2016 | state_dir_path("autostash", &options); | |
2017 | struct child_process stash = CHILD_PROCESS_INIT; | |
2018 | struct object_id oid; | |
2019 | struct commit *head = | |
2020 | lookup_commit_reference(the_repository, | |
2021 | &options.orig_head); | |
2022 | ||
2023 | argv_array_pushl(&stash.args, | |
2024 | "stash", "create", "autostash", NULL); | |
2025 | stash.git_cmd = 1; | |
2026 | stash.no_stdin = 1; | |
2027 | strbuf_reset(&buf); | |
2028 | if (capture_command(&stash, &buf, GIT_MAX_HEXSZ)) | |
2029 | die(_("Cannot autostash")); | |
2030 | strbuf_trim_trailing_newline(&buf); | |
2031 | if (get_oid(buf.buf, &oid)) | |
2032 | die(_("Unexpected stash response: '%s'"), | |
2033 | buf.buf); | |
2034 | strbuf_reset(&buf); | |
2035 | strbuf_add_unique_abbrev(&buf, &oid, DEFAULT_ABBREV); | |
2036 | ||
2037 | if (safe_create_leading_directories_const(autostash)) | |
2038 | die(_("Could not create directory for '%s'"), | |
2039 | options.state_dir); | |
12aeb00a | 2040 | write_file(autostash, "%s", oid_to_hex(&oid)); |
6defce2b PK |
2041 | printf(_("Created autostash: %s\n"), buf.buf); |
2042 | if (reset_head(&head->object.oid, "reset --hard", | |
bac2a1e3 | 2043 | NULL, RESET_HEAD_HARD, NULL, NULL) < 0) |
6defce2b PK |
2044 | die(_("could not reset --hard")); |
2045 | printf(_("HEAD is now at %s"), | |
2046 | find_unique_abbrev(&head->object.oid, | |
2047 | DEFAULT_ABBREV)); | |
2048 | strbuf_reset(&buf); | |
2049 | pp_commit_easy(CMIT_FMT_ONELINE, head, &buf); | |
2050 | if (buf.len > 0) | |
2051 | printf(" %s", buf.buf); | |
2052 | putchar('\n'); | |
2053 | ||
2054 | if (discard_index(the_repository->index) < 0 || | |
e1ff0a32 | 2055 | repo_read_index(the_repository) < 0) |
6defce2b PK |
2056 | die(_("could not read index")); |
2057 | } | |
2058 | } | |
2059 | ||
5b02ca38 | 2060 | if (require_clean_work_tree(the_repository, "rebase", |
e0333e5c PK |
2061 | _("Please commit or stash them."), 1, 1)) { |
2062 | ret = 1; | |
2063 | goto cleanup; | |
ac7f467f PK |
2064 | } |
2065 | ||
9a48a615 PK |
2066 | /* |
2067 | * Now we are rebasing commits upstream..orig_head (or with --root, | |
2068 | * everything leading up to orig_head) on top of onto. | |
2069 | */ | |
2070 | ||
2071 | /* | |
2072 | * Check if we are already based on onto with linear history, | |
2073 | * but this should be done only when upstream and onto are the same | |
2074 | * and if this is not an interactive rebase. | |
2075 | */ | |
2076 | if (can_fast_forward(options.onto, &options.orig_head, &merge_base) && | |
2077 | !is_interactive(&options) && !options.restrict_revision && | |
9dba809a | 2078 | options.upstream && |
9a48a615 PK |
2079 | !oidcmp(&options.upstream->object.oid, &options.onto->object.oid)) { |
2080 | int flag; | |
2081 | ||
1ed9c14f | 2082 | if (!(options.flags & REBASE_FORCE)) { |
e65123a7 PK |
2083 | /* Lazily switch to the target branch if needed... */ |
2084 | if (options.switch_to) { | |
2085 | struct object_id oid; | |
2086 | ||
2087 | if (get_oid(options.switch_to, &oid) < 0) { | |
2088 | ret = !!error(_("could not parse '%s'"), | |
2089 | options.switch_to); | |
2090 | goto cleanup; | |
2091 | } | |
2092 | ||
2093 | strbuf_reset(&buf); | |
13a5a9f0 JS |
2094 | strbuf_addf(&buf, "%s: checkout %s", |
2095 | getenv(GIT_REFLOG_ACTION_ENVIRONMENT), | |
e65123a7 PK |
2096 | options.switch_to); |
2097 | if (reset_head(&oid, "checkout", | |
8581df65 OS |
2098 | options.head_name, |
2099 | RESET_HEAD_RUN_POST_CHECKOUT_HOOK, | |
13a5a9f0 | 2100 | NULL, buf.buf) < 0) { |
e65123a7 PK |
2101 | ret = !!error(_("could not switch to " |
2102 | "%s"), | |
2103 | options.switch_to); | |
2104 | goto cleanup; | |
2105 | } | |
2106 | } | |
2107 | ||
1ed9c14f PK |
2108 | if (!(options.flags & REBASE_NO_QUIET)) |
2109 | ; /* be quiet */ | |
2110 | else if (!strcmp(branch_name, "HEAD") && | |
2111 | resolve_ref_unsafe("HEAD", 0, NULL, &flag)) | |
2112 | puts(_("HEAD is up to date.")); | |
2113 | else | |
2114 | printf(_("Current branch %s is up to date.\n"), | |
2115 | branch_name); | |
2116 | ret = !!finish_rebase(&options); | |
2117 | goto cleanup; | |
2118 | } else if (!(options.flags & REBASE_NO_QUIET)) | |
9a48a615 PK |
2119 | ; /* be quiet */ |
2120 | else if (!strcmp(branch_name, "HEAD") && | |
2121 | resolve_ref_unsafe("HEAD", 0, NULL, &flag)) | |
2122 | puts(_("HEAD is up to date, rebase forced.")); | |
2123 | else | |
2124 | printf(_("Current branch %s is up to date, rebase " | |
2125 | "forced.\n"), branch_name); | |
2126 | } | |
2127 | ||
06e4775a PK |
2128 | /* If a hook exists, give it a chance to interrupt*/ |
2129 | if (!ok_to_skip_pre_rebase && | |
2130 | run_hook_le(NULL, "pre-rebase", options.upstream_arg, | |
2131 | argc ? argv[0] : NULL, NULL)) | |
2132 | die(_("The pre-rebase hook refused to rebase.")); | |
2133 | ||
bff014da PK |
2134 | if (options.flags & REBASE_DIFFSTAT) { |
2135 | struct diff_options opts; | |
2136 | ||
8797f0f0 JS |
2137 | if (options.flags & REBASE_VERBOSE) { |
2138 | if (is_null_oid(&merge_base)) | |
2139 | printf(_("Changes to %s:\n"), | |
2140 | oid_to_hex(&options.onto->object.oid)); | |
2141 | else | |
2142 | printf(_("Changes from %s to %s:\n"), | |
2143 | oid_to_hex(&merge_base), | |
2144 | oid_to_hex(&options.onto->object.oid)); | |
2145 | } | |
bff014da PK |
2146 | |
2147 | /* We want color (if set), but no pager */ | |
2148 | diff_setup(&opts); | |
2149 | opts.stat_width = -1; /* use full terminal width */ | |
2150 | opts.stat_graph_width = -1; /* respect statGraphWidth config */ | |
2151 | opts.output_format |= | |
2152 | DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT; | |
2153 | opts.detect_rename = DIFF_DETECT_RENAME; | |
2154 | diff_setup_done(&opts); | |
8797f0f0 JS |
2155 | diff_tree_oid(is_null_oid(&merge_base) ? |
2156 | the_hash_algo->empty_tree : &merge_base, | |
2157 | &options.onto->object.oid, "", &opts); | |
bff014da PK |
2158 | diffcore_std(&opts); |
2159 | diff_flush(&opts); | |
2160 | } | |
2161 | ||
361badd3 PK |
2162 | if (is_interactive(&options)) |
2163 | goto run_rebase; | |
2164 | ||
bff014da PK |
2165 | /* Detach HEAD and reset the tree */ |
2166 | if (options.flags & REBASE_NO_QUIET) | |
2167 | printf(_("First, rewinding head to replay your work on top of " | |
2168 | "it...\n")); | |
2169 | ||
13a5a9f0 JS |
2170 | strbuf_addf(&msg, "%s: checkout %s", |
2171 | getenv(GIT_REFLOG_ACTION_ENVIRONMENT), options.onto_name); | |
73d6d7b2 | 2172 | if (reset_head(&options.onto->object.oid, "checkout", NULL, |
8581df65 OS |
2173 | RESET_HEAD_DETACH | RESET_HEAD_RUN_POST_CHECKOUT_HOOK, |
2174 | NULL, msg.buf)) | |
ac7f467f PK |
2175 | die(_("Could not detach HEAD")); |
2176 | strbuf_release(&msg); | |
2177 | ||
7eecfa56 PK |
2178 | /* |
2179 | * If the onto is a proper descendant of the tip of the branch, then | |
2180 | * we just fast-forwarded. | |
2181 | */ | |
2182 | strbuf_reset(&msg); | |
2183 | if (!oidcmp(&merge_base, &options.orig_head)) { | |
eff199a6 | 2184 | printf(_("Fast-forwarded %s to %s.\n"), |
7eecfa56 PK |
2185 | branch_name, options.onto_name); |
2186 | strbuf_addf(&msg, "rebase finished: %s onto %s", | |
2187 | options.head_name ? options.head_name : "detached HEAD", | |
2188 | oid_to_hex(&options.onto->object.oid)); | |
2189 | reset_head(NULL, "Fast-forwarded", options.head_name, 0, | |
2190 | "HEAD", msg.buf); | |
2191 | strbuf_release(&msg); | |
2192 | ret = !!finish_rebase(&options); | |
2193 | goto cleanup; | |
2194 | } | |
2195 | ||
ac7f467f PK |
2196 | strbuf_addf(&revisions, "%s..%s", |
2197 | options.root ? oid_to_hex(&options.onto->object.oid) : | |
2198 | (options.restrict_revision ? | |
2199 | oid_to_hex(&options.restrict_revision->object.oid) : | |
2200 | oid_to_hex(&options.upstream->object.oid)), | |
2201 | oid_to_hex(&options.orig_head)); | |
2202 | ||
2203 | options.revisions = revisions.buf; | |
2204 | ||
f9573628 | 2205 | run_rebase: |
ac7f467f PK |
2206 | ret = !!run_specific_rebase(&options); |
2207 | ||
e0333e5c | 2208 | cleanup: |
ac7f467f PK |
2209 | strbuf_release(&revisions); |
2210 | free(options.head_name); | |
12026a41 | 2211 | free(options.gpg_sign_opt); |
68e46d78 | 2212 | free(options.cmd); |
9dba809a | 2213 | free(squash_onto_name); |
ac7f467f | 2214 | return ret; |
55071ea2 | 2215 | } |