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Commit | Line | Data |
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55071ea2 PK |
1 | /* |
2 | * "git rebase" builtin command | |
3 | * | |
4 | * Copyright (c) 2018 Pratik Karki | |
5 | */ | |
6 | ||
7 | #include "builtin.h" | |
8 | #include "run-command.h" | |
9 | #include "exec-cmd.h" | |
10 | #include "argv-array.h" | |
11 | #include "dir.h" | |
ac7f467f PK |
12 | #include "packfile.h" |
13 | #include "refs.h" | |
14 | #include "quote.h" | |
15 | #include "config.h" | |
16 | #include "cache-tree.h" | |
17 | #include "unpack-trees.h" | |
18 | #include "lockfile.h" | |
f28d40d3 | 19 | #include "parse-options.h" |
075bc852 | 20 | #include "commit.h" |
bff014da | 21 | #include "diff.h" |
e0333e5c | 22 | #include "wt-status.h" |
9a48a615 | 23 | #include "revision.h" |
e0720a38 | 24 | #include "commit-reach.h" |
122420c2 | 25 | #include "rerere.h" |
f28d40d3 PK |
26 | |
27 | static char const * const builtin_rebase_usage[] = { | |
28 | N_("git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] " | |
29 | "[<upstream>] [<branch>]"), | |
30 | N_("git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] " | |
31 | "--root [<branch>]"), | |
32 | N_("git rebase --continue | --abort | --skip | --edit-todo"), | |
33 | NULL | |
34 | }; | |
ac7f467f PK |
35 | |
36 | static GIT_PATH_FUNC(apply_dir, "rebase-apply") | |
37 | static GIT_PATH_FUNC(merge_dir, "rebase-merge") | |
38 | ||
39 | enum rebase_type { | |
40 | REBASE_UNSPECIFIED = -1, | |
41 | REBASE_AM, | |
42 | REBASE_MERGE, | |
43 | REBASE_INTERACTIVE, | |
44 | REBASE_PRESERVE_MERGES | |
45 | }; | |
55071ea2 PK |
46 | |
47 | static int use_builtin_rebase(void) | |
48 | { | |
49 | struct child_process cp = CHILD_PROCESS_INIT; | |
50 | struct strbuf out = STRBUF_INIT; | |
51 | int ret; | |
52 | ||
53 | argv_array_pushl(&cp.args, | |
54 | "config", "--bool", "rebase.usebuiltin", NULL); | |
55 | cp.git_cmd = 1; | |
56 | if (capture_command(&cp, &out, 6)) { | |
57 | strbuf_release(&out); | |
5541bd5b | 58 | return 1; |
55071ea2 PK |
59 | } |
60 | ||
61 | strbuf_trim(&out); | |
62 | ret = !strcmp("true", out.buf); | |
63 | strbuf_release(&out); | |
64 | return ret; | |
65 | } | |
66 | ||
ac7f467f PK |
67 | struct rebase_options { |
68 | enum rebase_type type; | |
69 | const char *state_dir; | |
70 | struct commit *upstream; | |
71 | const char *upstream_name; | |
06e4775a | 72 | const char *upstream_arg; |
ac7f467f PK |
73 | char *head_name; |
74 | struct object_id orig_head; | |
75 | struct commit *onto; | |
76 | const char *onto_name; | |
77 | const char *revisions; | |
e65123a7 | 78 | const char *switch_to; |
ac7f467f | 79 | int root; |
9dba809a | 80 | struct object_id *squash_onto; |
ac7f467f PK |
81 | struct commit *restrict_revision; |
82 | int dont_finish_rebase; | |
b4c8eb02 PK |
83 | enum { |
84 | REBASE_NO_QUIET = 1<<0, | |
bff014da PK |
85 | REBASE_VERBOSE = 1<<1, |
86 | REBASE_DIFFSTAT = 1<<2, | |
1ed9c14f | 87 | REBASE_FORCE = 1<<3, |
c54dacb5 | 88 | REBASE_INTERACTIVE_EXPLICIT = 1<<4, |
b4c8eb02 PK |
89 | } flags; |
90 | struct strbuf git_am_opt; | |
f9573628 | 91 | const char *action; |
73d51ed0 | 92 | int signoff; |
ead98c11 | 93 | int allow_rerere_autoupdate; |
002ee2fe | 94 | int keep_empty; |
051910a9 | 95 | int autosquash; |
12026a41 | 96 | char *gpg_sign_opt; |
6defce2b | 97 | int autostash; |
68e46d78 | 98 | char *cmd; |
9b3a448b | 99 | int allow_empty_message; |
3c3588c7 | 100 | int rebase_merges, rebase_cousins; |
ba1905a5 | 101 | char *strategy, *strategy_opts; |
cda614e4 | 102 | struct strbuf git_format_patch_opt; |
ac7f467f PK |
103 | }; |
104 | ||
9a48a615 PK |
105 | static int is_interactive(struct rebase_options *opts) |
106 | { | |
107 | return opts->type == REBASE_INTERACTIVE || | |
108 | opts->type == REBASE_PRESERVE_MERGES; | |
109 | } | |
110 | ||
002ee2fe PK |
111 | static void imply_interactive(struct rebase_options *opts, const char *option) |
112 | { | |
113 | switch (opts->type) { | |
114 | case REBASE_AM: | |
115 | die(_("%s requires an interactive rebase"), option); | |
116 | break; | |
117 | case REBASE_INTERACTIVE: | |
118 | case REBASE_PRESERVE_MERGES: | |
119 | break; | |
120 | case REBASE_MERGE: | |
121 | /* we silently *upgrade* --merge to --interactive if needed */ | |
122 | default: | |
123 | opts->type = REBASE_INTERACTIVE; /* implied */ | |
124 | break; | |
125 | } | |
126 | } | |
127 | ||
ac7f467f PK |
128 | /* Returns the filename prefixed by the state_dir */ |
129 | static const char *state_dir_path(const char *filename, struct rebase_options *opts) | |
130 | { | |
131 | static struct strbuf path = STRBUF_INIT; | |
132 | static size_t prefix_len; | |
133 | ||
134 | if (!prefix_len) { | |
135 | strbuf_addf(&path, "%s/", opts->state_dir); | |
136 | prefix_len = path.len; | |
137 | } | |
138 | ||
139 | strbuf_setlen(&path, prefix_len); | |
140 | strbuf_addstr(&path, filename); | |
141 | return path.buf; | |
142 | } | |
143 | ||
f9573628 PK |
144 | /* Read one file, then strip line endings */ |
145 | static int read_one(const char *path, struct strbuf *buf) | |
146 | { | |
147 | if (strbuf_read_file(buf, path, 0) < 0) | |
148 | return error_errno(_("could not read '%s'"), path); | |
149 | strbuf_trim_trailing_newline(buf); | |
150 | return 0; | |
151 | } | |
152 | ||
153 | /* Initialize the rebase options from the state directory. */ | |
154 | static int read_basic_state(struct rebase_options *opts) | |
155 | { | |
156 | struct strbuf head_name = STRBUF_INIT; | |
157 | struct strbuf buf = STRBUF_INIT; | |
158 | struct object_id oid; | |
159 | ||
160 | if (read_one(state_dir_path("head-name", opts), &head_name) || | |
161 | read_one(state_dir_path("onto", opts), &buf)) | |
162 | return -1; | |
163 | opts->head_name = starts_with(head_name.buf, "refs/") ? | |
164 | xstrdup(head_name.buf) : NULL; | |
165 | strbuf_release(&head_name); | |
166 | if (get_oid(buf.buf, &oid)) | |
167 | return error(_("could not get 'onto': '%s'"), buf.buf); | |
168 | opts->onto = lookup_commit_or_die(&oid, buf.buf); | |
169 | ||
170 | /* | |
171 | * We always write to orig-head, but interactive rebase used to write to | |
172 | * head. Fall back to reading from head to cover for the case that the | |
173 | * user upgraded git with an ongoing interactive rebase. | |
174 | */ | |
175 | strbuf_reset(&buf); | |
176 | if (file_exists(state_dir_path("orig-head", opts))) { | |
177 | if (read_one(state_dir_path("orig-head", opts), &buf)) | |
178 | return -1; | |
179 | } else if (read_one(state_dir_path("head", opts), &buf)) | |
180 | return -1; | |
181 | if (get_oid(buf.buf, &opts->orig_head)) | |
182 | return error(_("invalid orig-head: '%s'"), buf.buf); | |
183 | ||
184 | strbuf_reset(&buf); | |
185 | if (read_one(state_dir_path("quiet", opts), &buf)) | |
186 | return -1; | |
187 | if (buf.len) | |
188 | opts->flags &= ~REBASE_NO_QUIET; | |
189 | else | |
190 | opts->flags |= REBASE_NO_QUIET; | |
191 | ||
192 | if (file_exists(state_dir_path("verbose", opts))) | |
193 | opts->flags |= REBASE_VERBOSE; | |
194 | ||
73d51ed0 PK |
195 | if (file_exists(state_dir_path("signoff", opts))) { |
196 | opts->signoff = 1; | |
197 | opts->flags |= REBASE_FORCE; | |
198 | } | |
199 | ||
ead98c11 PK |
200 | if (file_exists(state_dir_path("allow_rerere_autoupdate", opts))) { |
201 | strbuf_reset(&buf); | |
202 | if (read_one(state_dir_path("allow_rerere_autoupdate", opts), | |
203 | &buf)) | |
204 | return -1; | |
205 | if (!strcmp(buf.buf, "--rerere-autoupdate")) | |
206 | opts->allow_rerere_autoupdate = 1; | |
207 | else if (!strcmp(buf.buf, "--no-rerere-autoupdate")) | |
208 | opts->allow_rerere_autoupdate = 0; | |
209 | else | |
210 | warning(_("ignoring invalid allow_rerere_autoupdate: " | |
211 | "'%s'"), buf.buf); | |
212 | } else | |
213 | opts->allow_rerere_autoupdate = -1; | |
214 | ||
12026a41 PK |
215 | if (file_exists(state_dir_path("gpg_sign_opt", opts))) { |
216 | strbuf_reset(&buf); | |
217 | if (read_one(state_dir_path("gpg_sign_opt", opts), | |
218 | &buf)) | |
219 | return -1; | |
220 | free(opts->gpg_sign_opt); | |
221 | opts->gpg_sign_opt = xstrdup(buf.buf); | |
222 | } | |
223 | ||
ba1905a5 PK |
224 | if (file_exists(state_dir_path("strategy", opts))) { |
225 | strbuf_reset(&buf); | |
226 | if (read_one(state_dir_path("strategy", opts), &buf)) | |
227 | return -1; | |
228 | free(opts->strategy); | |
229 | opts->strategy = xstrdup(buf.buf); | |
230 | } | |
231 | ||
232 | if (file_exists(state_dir_path("strategy_opts", opts))) { | |
233 | strbuf_reset(&buf); | |
234 | if (read_one(state_dir_path("strategy_opts", opts), &buf)) | |
235 | return -1; | |
236 | free(opts->strategy_opts); | |
237 | opts->strategy_opts = xstrdup(buf.buf); | |
238 | } | |
239 | ||
f9573628 PK |
240 | strbuf_release(&buf); |
241 | ||
242 | return 0; | |
243 | } | |
244 | ||
6defce2b PK |
245 | static int apply_autostash(struct rebase_options *opts) |
246 | { | |
247 | const char *path = state_dir_path("autostash", opts); | |
248 | struct strbuf autostash = STRBUF_INIT; | |
249 | struct child_process stash_apply = CHILD_PROCESS_INIT; | |
250 | ||
251 | if (!file_exists(path)) | |
252 | return 0; | |
253 | ||
71064e60 | 254 | if (read_one(path, &autostash)) |
6defce2b | 255 | return error(_("Could not read '%s'"), path); |
b98e914e JS |
256 | /* Ensure that the hash is not mistaken for a number */ |
257 | strbuf_addstr(&autostash, "^0"); | |
6defce2b PK |
258 | argv_array_pushl(&stash_apply.args, |
259 | "stash", "apply", autostash.buf, NULL); | |
260 | stash_apply.git_cmd = 1; | |
261 | stash_apply.no_stderr = stash_apply.no_stdout = | |
262 | stash_apply.no_stdin = 1; | |
263 | if (!run_command(&stash_apply)) | |
264 | printf(_("Applied autostash.\n")); | |
265 | else { | |
266 | struct argv_array args = ARGV_ARRAY_INIT; | |
267 | int res = 0; | |
268 | ||
269 | argv_array_pushl(&args, | |
270 | "stash", "store", "-m", "autostash", "-q", | |
271 | autostash.buf, NULL); | |
272 | if (run_command_v_opt(args.argv, RUN_GIT_CMD)) | |
273 | res = error(_("Cannot store %s"), autostash.buf); | |
274 | argv_array_clear(&args); | |
275 | strbuf_release(&autostash); | |
276 | if (res) | |
277 | return res; | |
278 | ||
279 | fprintf(stderr, | |
280 | _("Applying autostash resulted in conflicts.\n" | |
281 | "Your changes are safe in the stash.\n" | |
282 | "You can run \"git stash pop\" or \"git stash drop\" " | |
283 | "at any time.\n")); | |
284 | } | |
285 | ||
286 | strbuf_release(&autostash); | |
287 | return 0; | |
288 | } | |
289 | ||
ac7f467f PK |
290 | static int finish_rebase(struct rebase_options *opts) |
291 | { | |
292 | struct strbuf dir = STRBUF_INIT; | |
293 | const char *argv_gc_auto[] = { "gc", "--auto", NULL }; | |
294 | ||
295 | delete_ref(NULL, "REBASE_HEAD", NULL, REF_NO_DEREF); | |
6defce2b | 296 | apply_autostash(opts); |
ac7f467f PK |
297 | close_all_packs(the_repository->objects); |
298 | /* | |
299 | * We ignore errors in 'gc --auto', since the | |
300 | * user should see them. | |
301 | */ | |
302 | run_command_v_opt(argv_gc_auto, RUN_GIT_CMD); | |
303 | strbuf_addstr(&dir, opts->state_dir); | |
304 | remove_dir_recursively(&dir, 0); | |
305 | strbuf_release(&dir); | |
306 | ||
307 | return 0; | |
308 | } | |
309 | ||
310 | static struct commit *peel_committish(const char *name) | |
311 | { | |
312 | struct object *obj; | |
313 | struct object_id oid; | |
314 | ||
315 | if (get_oid(name, &oid)) | |
316 | return NULL; | |
317 | obj = parse_object(the_repository, &oid); | |
318 | return (struct commit *)peel_to_type(name, 0, obj, OBJ_COMMIT); | |
319 | } | |
320 | ||
321 | static void add_var(struct strbuf *buf, const char *name, const char *value) | |
322 | { | |
323 | if (!value) | |
324 | strbuf_addf(buf, "unset %s; ", name); | |
325 | else { | |
326 | strbuf_addf(buf, "%s=", name); | |
327 | sq_quote_buf(buf, value); | |
328 | strbuf_addstr(buf, "; "); | |
329 | } | |
330 | } | |
331 | ||
bc24382c JS |
332 | static const char *resolvemsg = |
333 | N_("Resolve all conflicts manually, mark them as resolved with\n" | |
334 | "\"git add/rm <conflicted_files>\", then run \"git rebase --continue\".\n" | |
335 | "You can instead skip this commit: run \"git rebase --skip\".\n" | |
336 | "To abort and get back to the state before \"git rebase\", run " | |
337 | "\"git rebase --abort\"."); | |
338 | ||
ac7f467f PK |
339 | static int run_specific_rebase(struct rebase_options *opts) |
340 | { | |
341 | const char *argv[] = { NULL, NULL }; | |
342 | struct strbuf script_snippet = STRBUF_INIT; | |
343 | int status; | |
344 | const char *backend, *backend_func; | |
345 | ||
bc24382c JS |
346 | if (opts->type == REBASE_INTERACTIVE) { |
347 | /* Run builtin interactive rebase */ | |
348 | struct child_process child = CHILD_PROCESS_INIT; | |
349 | ||
350 | argv_array_pushf(&child.env_array, "GIT_CHERRY_PICK_HELP=%s", | |
351 | resolvemsg); | |
352 | if (!(opts->flags & REBASE_INTERACTIVE_EXPLICIT)) { | |
353 | argv_array_push(&child.env_array, "GIT_EDITOR=:"); | |
354 | opts->autosquash = 0; | |
355 | } | |
356 | ||
357 | child.git_cmd = 1; | |
358 | argv_array_push(&child.args, "rebase--interactive"); | |
359 | ||
360 | if (opts->action) | |
361 | argv_array_pushf(&child.args, "--%s", opts->action); | |
362 | if (opts->keep_empty) | |
363 | argv_array_push(&child.args, "--keep-empty"); | |
364 | if (opts->rebase_merges) | |
365 | argv_array_push(&child.args, "--rebase-merges"); | |
366 | if (opts->rebase_cousins) | |
367 | argv_array_push(&child.args, "--rebase-cousins"); | |
368 | if (opts->autosquash) | |
369 | argv_array_push(&child.args, "--autosquash"); | |
370 | if (opts->flags & REBASE_VERBOSE) | |
371 | argv_array_push(&child.args, "--verbose"); | |
372 | if (opts->flags & REBASE_FORCE) | |
373 | argv_array_push(&child.args, "--no-ff"); | |
374 | if (opts->restrict_revision) | |
375 | argv_array_pushf(&child.args, | |
376 | "--restrict-revision=^%s", | |
377 | oid_to_hex(&opts->restrict_revision->object.oid)); | |
378 | if (opts->upstream) | |
379 | argv_array_pushf(&child.args, "--upstream=%s", | |
380 | oid_to_hex(&opts->upstream->object.oid)); | |
381 | if (opts->onto) | |
382 | argv_array_pushf(&child.args, "--onto=%s", | |
383 | oid_to_hex(&opts->onto->object.oid)); | |
384 | if (opts->squash_onto) | |
385 | argv_array_pushf(&child.args, "--squash-onto=%s", | |
386 | oid_to_hex(opts->squash_onto)); | |
387 | if (opts->onto_name) | |
388 | argv_array_pushf(&child.args, "--onto-name=%s", | |
389 | opts->onto_name); | |
390 | argv_array_pushf(&child.args, "--head-name=%s", | |
391 | opts->head_name ? | |
392 | opts->head_name : "detached HEAD"); | |
393 | if (opts->strategy) | |
394 | argv_array_pushf(&child.args, "--strategy=%s", | |
395 | opts->strategy); | |
396 | if (opts->strategy_opts) | |
397 | argv_array_pushf(&child.args, "--strategy-opts=%s", | |
398 | opts->strategy_opts); | |
399 | if (opts->switch_to) | |
400 | argv_array_pushf(&child.args, "--switch-to=%s", | |
401 | opts->switch_to); | |
402 | if (opts->cmd) | |
403 | argv_array_pushf(&child.args, "--cmd=%s", opts->cmd); | |
404 | if (opts->allow_empty_message) | |
405 | argv_array_push(&child.args, "--allow-empty-message"); | |
406 | if (opts->allow_rerere_autoupdate > 0) | |
407 | argv_array_push(&child.args, "--rerere-autoupdate"); | |
408 | else if (opts->allow_rerere_autoupdate == 0) | |
409 | argv_array_push(&child.args, "--no-rerere-autoupdate"); | |
410 | if (opts->gpg_sign_opt) | |
411 | argv_array_push(&child.args, opts->gpg_sign_opt); | |
412 | if (opts->signoff) | |
413 | argv_array_push(&child.args, "--signoff"); | |
414 | ||
415 | status = run_command(&child); | |
416 | goto finished_rebase; | |
417 | } | |
418 | ||
ac7f467f PK |
419 | add_var(&script_snippet, "GIT_DIR", absolute_path(get_git_dir())); |
420 | add_var(&script_snippet, "state_dir", opts->state_dir); | |
421 | ||
422 | add_var(&script_snippet, "upstream_name", opts->upstream_name); | |
f9573628 PK |
423 | add_var(&script_snippet, "upstream", opts->upstream ? |
424 | oid_to_hex(&opts->upstream->object.oid) : NULL); | |
d4c569f8 PK |
425 | add_var(&script_snippet, "head_name", |
426 | opts->head_name ? opts->head_name : "detached HEAD"); | |
ac7f467f | 427 | add_var(&script_snippet, "orig_head", oid_to_hex(&opts->orig_head)); |
f9573628 PK |
428 | add_var(&script_snippet, "onto", opts->onto ? |
429 | oid_to_hex(&opts->onto->object.oid) : NULL); | |
ac7f467f PK |
430 | add_var(&script_snippet, "onto_name", opts->onto_name); |
431 | add_var(&script_snippet, "revisions", opts->revisions); | |
432 | add_var(&script_snippet, "restrict_revision", opts->restrict_revision ? | |
433 | oid_to_hex(&opts->restrict_revision->object.oid) : NULL); | |
b4c8eb02 PK |
434 | add_var(&script_snippet, "GIT_QUIET", |
435 | opts->flags & REBASE_NO_QUIET ? "" : "t"); | |
436 | add_var(&script_snippet, "git_am_opt", opts->git_am_opt.buf); | |
bff014da PK |
437 | add_var(&script_snippet, "verbose", |
438 | opts->flags & REBASE_VERBOSE ? "t" : ""); | |
439 | add_var(&script_snippet, "diffstat", | |
440 | opts->flags & REBASE_DIFFSTAT ? "t" : ""); | |
1ed9c14f PK |
441 | add_var(&script_snippet, "force_rebase", |
442 | opts->flags & REBASE_FORCE ? "t" : ""); | |
e65123a7 PK |
443 | if (opts->switch_to) |
444 | add_var(&script_snippet, "switch_to", opts->switch_to); | |
f9573628 | 445 | add_var(&script_snippet, "action", opts->action ? opts->action : ""); |
73d51ed0 | 446 | add_var(&script_snippet, "signoff", opts->signoff ? "--signoff" : ""); |
ead98c11 PK |
447 | add_var(&script_snippet, "allow_rerere_autoupdate", |
448 | opts->allow_rerere_autoupdate < 0 ? "" : | |
449 | opts->allow_rerere_autoupdate ? | |
450 | "--rerere-autoupdate" : "--no-rerere-autoupdate"); | |
002ee2fe | 451 | add_var(&script_snippet, "keep_empty", opts->keep_empty ? "yes" : ""); |
051910a9 | 452 | add_var(&script_snippet, "autosquash", opts->autosquash ? "t" : ""); |
12026a41 | 453 | add_var(&script_snippet, "gpg_sign_opt", opts->gpg_sign_opt); |
68e46d78 | 454 | add_var(&script_snippet, "cmd", opts->cmd); |
9b3a448b PK |
455 | add_var(&script_snippet, "allow_empty_message", |
456 | opts->allow_empty_message ? "--allow-empty-message" : ""); | |
3c3588c7 PK |
457 | add_var(&script_snippet, "rebase_merges", |
458 | opts->rebase_merges ? "t" : ""); | |
459 | add_var(&script_snippet, "rebase_cousins", | |
460 | opts->rebase_cousins ? "t" : ""); | |
ba1905a5 PK |
461 | add_var(&script_snippet, "strategy", opts->strategy); |
462 | add_var(&script_snippet, "strategy_opts", opts->strategy_opts); | |
9dba809a PK |
463 | add_var(&script_snippet, "rebase_root", opts->root ? "t" : ""); |
464 | add_var(&script_snippet, "squash_onto", | |
465 | opts->squash_onto ? oid_to_hex(opts->squash_onto) : ""); | |
cda614e4 PK |
466 | add_var(&script_snippet, "git_format_patch_opt", |
467 | opts->git_format_patch_opt.buf); | |
ac7f467f | 468 | |
3dba9d08 PK |
469 | if (is_interactive(opts) && |
470 | !(opts->flags & REBASE_INTERACTIVE_EXPLICIT)) { | |
471 | strbuf_addstr(&script_snippet, | |
472 | "GIT_EDITOR=:; export GIT_EDITOR; "); | |
473 | opts->autosquash = 0; | |
474 | } | |
ac7f467f PK |
475 | |
476 | switch (opts->type) { | |
477 | case REBASE_AM: | |
478 | backend = "git-rebase--am"; | |
479 | backend_func = "git_rebase__am"; | |
480 | break; | |
ac7f467f PK |
481 | case REBASE_MERGE: |
482 | backend = "git-rebase--merge"; | |
483 | backend_func = "git_rebase__merge"; | |
484 | break; | |
485 | case REBASE_PRESERVE_MERGES: | |
486 | backend = "git-rebase--preserve-merges"; | |
487 | backend_func = "git_rebase__preserve_merges"; | |
488 | break; | |
489 | default: | |
490 | BUG("Unhandled rebase type %d", opts->type); | |
491 | break; | |
492 | } | |
493 | ||
494 | strbuf_addf(&script_snippet, | |
495 | ". git-sh-setup && . git-rebase--common &&" | |
496 | " . %s && %s", backend, backend_func); | |
497 | argv[0] = script_snippet.buf; | |
498 | ||
499 | status = run_command_v_opt(argv, RUN_USING_SHELL); | |
bc24382c | 500 | finished_rebase: |
ac7f467f PK |
501 | if (opts->dont_finish_rebase) |
502 | ; /* do nothing */ | |
bc24382c JS |
503 | else if (opts->type == REBASE_INTERACTIVE) |
504 | ; /* interactive rebase cleans up after itself */ | |
ac7f467f PK |
505 | else if (status == 0) { |
506 | if (!file_exists(state_dir_path("stopped-sha", opts))) | |
507 | finish_rebase(opts); | |
508 | } else if (status == 2) { | |
509 | struct strbuf dir = STRBUF_INIT; | |
510 | ||
6defce2b | 511 | apply_autostash(opts); |
ac7f467f PK |
512 | strbuf_addstr(&dir, opts->state_dir); |
513 | remove_dir_recursively(&dir, 0); | |
514 | strbuf_release(&dir); | |
515 | die("Nothing to do"); | |
516 | } | |
517 | ||
518 | strbuf_release(&script_snippet); | |
519 | ||
520 | return status ? -1 : 0; | |
521 | } | |
522 | ||
523 | #define GIT_REFLOG_ACTION_ENVIRONMENT "GIT_REFLOG_ACTION" | |
524 | ||
525 | static int reset_head(struct object_id *oid, const char *action, | |
fa443d40 PK |
526 | const char *switch_to_branch, int detach_head, |
527 | const char *reflog_orig_head, const char *reflog_head) | |
ac7f467f PK |
528 | { |
529 | struct object_id head_oid; | |
530 | struct tree_desc desc; | |
531 | struct lock_file lock = LOCK_INIT; | |
532 | struct unpack_trees_options unpack_tree_opts; | |
533 | struct tree *tree; | |
534 | const char *reflog_action; | |
535 | struct strbuf msg = STRBUF_INIT; | |
536 | size_t prefix_len; | |
537 | struct object_id *orig = NULL, oid_orig, | |
538 | *old_orig = NULL, oid_old_orig; | |
539 | int ret = 0; | |
540 | ||
d4c569f8 PK |
541 | if (switch_to_branch && !starts_with(switch_to_branch, "refs/")) |
542 | BUG("Not a fully qualified branch: '%s'", switch_to_branch); | |
543 | ||
ac7f467f PK |
544 | if (hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0) |
545 | return -1; | |
546 | ||
547 | if (!oid) { | |
548 | if (get_oid("HEAD", &head_oid)) { | |
549 | rollback_lock_file(&lock); | |
550 | return error(_("could not determine HEAD revision")); | |
551 | } | |
552 | oid = &head_oid; | |
553 | } | |
554 | ||
555 | memset(&unpack_tree_opts, 0, sizeof(unpack_tree_opts)); | |
556 | setup_unpack_trees_porcelain(&unpack_tree_opts, action); | |
557 | unpack_tree_opts.head_idx = 1; | |
558 | unpack_tree_opts.src_index = the_repository->index; | |
559 | unpack_tree_opts.dst_index = the_repository->index; | |
560 | unpack_tree_opts.fn = oneway_merge; | |
561 | unpack_tree_opts.update = 1; | |
562 | unpack_tree_opts.merge = 1; | |
563 | if (!detach_head) | |
564 | unpack_tree_opts.reset = 1; | |
565 | ||
566 | if (read_index_unmerged(the_repository->index) < 0) { | |
567 | rollback_lock_file(&lock); | |
568 | return error(_("could not read index")); | |
569 | } | |
570 | ||
571 | if (!fill_tree_descriptor(&desc, oid)) { | |
572 | error(_("failed to find tree of %s"), oid_to_hex(oid)); | |
573 | rollback_lock_file(&lock); | |
574 | free((void *)desc.buffer); | |
575 | return -1; | |
576 | } | |
577 | ||
578 | if (unpack_trees(1, &desc, &unpack_tree_opts)) { | |
579 | rollback_lock_file(&lock); | |
580 | free((void *)desc.buffer); | |
581 | return -1; | |
582 | } | |
583 | ||
584 | tree = parse_tree_indirect(oid); | |
c207e9e1 | 585 | prime_cache_tree(the_repository, the_repository->index, tree); |
ac7f467f PK |
586 | |
587 | if (write_locked_index(the_repository->index, &lock, COMMIT_LOCK) < 0) | |
588 | ret = error(_("could not write index")); | |
589 | free((void *)desc.buffer); | |
590 | ||
591 | if (ret) | |
592 | return ret; | |
593 | ||
594 | reflog_action = getenv(GIT_REFLOG_ACTION_ENVIRONMENT); | |
595 | strbuf_addf(&msg, "%s: ", reflog_action ? reflog_action : "rebase"); | |
596 | prefix_len = msg.len; | |
597 | ||
598 | if (!get_oid("ORIG_HEAD", &oid_old_orig)) | |
599 | old_orig = &oid_old_orig; | |
600 | if (!get_oid("HEAD", &oid_orig)) { | |
601 | orig = &oid_orig; | |
fa443d40 PK |
602 | if (!reflog_orig_head) { |
603 | strbuf_addstr(&msg, "updating ORIG_HEAD"); | |
604 | reflog_orig_head = msg.buf; | |
605 | } | |
606 | update_ref(reflog_orig_head, "ORIG_HEAD", orig, old_orig, 0, | |
ac7f467f PK |
607 | UPDATE_REFS_MSG_ON_ERR); |
608 | } else if (old_orig) | |
609 | delete_ref(NULL, "ORIG_HEAD", old_orig, 0); | |
fa443d40 PK |
610 | if (!reflog_head) { |
611 | strbuf_setlen(&msg, prefix_len); | |
612 | strbuf_addstr(&msg, "updating HEAD"); | |
613 | reflog_head = msg.buf; | |
614 | } | |
ac7f467f | 615 | if (!switch_to_branch) |
fa443d40 | 616 | ret = update_ref(reflog_head, "HEAD", oid, orig, REF_NO_DEREF, |
ac7f467f PK |
617 | UPDATE_REFS_MSG_ON_ERR); |
618 | else { | |
619 | ret = create_symref("HEAD", switch_to_branch, msg.buf); | |
620 | if (!ret) | |
fa443d40 | 621 | ret = update_ref(reflog_head, "HEAD", oid, NULL, 0, |
ac7f467f PK |
622 | UPDATE_REFS_MSG_ON_ERR); |
623 | } | |
624 | ||
625 | strbuf_release(&msg); | |
626 | return ret; | |
627 | } | |
628 | ||
bff014da PK |
629 | static int rebase_config(const char *var, const char *value, void *data) |
630 | { | |
631 | struct rebase_options *opts = data; | |
632 | ||
633 | if (!strcmp(var, "rebase.stat")) { | |
634 | if (git_config_bool(var, value)) | |
635 | opts->flags |= REBASE_DIFFSTAT; | |
636 | else | |
637 | opts->flags &= !REBASE_DIFFSTAT; | |
638 | return 0; | |
639 | } | |
640 | ||
051910a9 PK |
641 | if (!strcmp(var, "rebase.autosquash")) { |
642 | opts->autosquash = git_config_bool(var, value); | |
643 | return 0; | |
644 | } | |
645 | ||
12026a41 PK |
646 | if (!strcmp(var, "commit.gpgsign")) { |
647 | free(opts->gpg_sign_opt); | |
648 | opts->gpg_sign_opt = git_config_bool(var, value) ? | |
649 | xstrdup("-S") : NULL; | |
650 | return 0; | |
651 | } | |
652 | ||
6defce2b PK |
653 | if (!strcmp(var, "rebase.autostash")) { |
654 | opts->autostash = git_config_bool(var, value); | |
655 | return 0; | |
656 | } | |
657 | ||
bff014da PK |
658 | return git_default_config(var, value, data); |
659 | } | |
660 | ||
9a48a615 PK |
661 | /* |
662 | * Determines whether the commits in from..to are linear, i.e. contain | |
663 | * no merge commits. This function *expects* `from` to be an ancestor of | |
664 | * `to`. | |
665 | */ | |
666 | static int is_linear_history(struct commit *from, struct commit *to) | |
667 | { | |
668 | while (to && to != from) { | |
669 | parse_commit(to); | |
670 | if (!to->parents) | |
671 | return 1; | |
672 | if (to->parents->next) | |
673 | return 0; | |
674 | to = to->parents->item; | |
675 | } | |
676 | return 1; | |
677 | } | |
678 | ||
679 | static int can_fast_forward(struct commit *onto, struct object_id *head_oid, | |
680 | struct object_id *merge_base) | |
681 | { | |
682 | struct commit *head = lookup_commit(the_repository, head_oid); | |
683 | struct commit_list *merge_bases; | |
684 | int res; | |
685 | ||
686 | if (!head) | |
687 | return 0; | |
688 | ||
689 | merge_bases = get_merge_bases(onto, head); | |
690 | if (merge_bases && !merge_bases->next) { | |
691 | oidcpy(merge_base, &merge_bases->item->object.oid); | |
b17ca8f9 | 692 | res = oideq(merge_base, &onto->object.oid); |
9a48a615 PK |
693 | } else { |
694 | oidcpy(merge_base, &null_oid); | |
695 | res = 0; | |
696 | } | |
697 | free_commit_list(merge_bases); | |
698 | return res && is_linear_history(onto, head); | |
699 | } | |
700 | ||
361badd3 PK |
701 | /* -i followed by -m is still -i */ |
702 | static int parse_opt_merge(const struct option *opt, const char *arg, int unset) | |
703 | { | |
704 | struct rebase_options *opts = opt->value; | |
705 | ||
706 | if (!is_interactive(opts)) | |
707 | opts->type = REBASE_MERGE; | |
708 | ||
709 | return 0; | |
710 | } | |
711 | ||
712 | /* -i followed by -p is still explicitly interactive, but -p alone is not */ | |
713 | static int parse_opt_interactive(const struct option *opt, const char *arg, | |
714 | int unset) | |
715 | { | |
716 | struct rebase_options *opts = opt->value; | |
717 | ||
718 | opts->type = REBASE_INTERACTIVE; | |
719 | opts->flags |= REBASE_INTERACTIVE_EXPLICIT; | |
720 | ||
721 | return 0; | |
722 | } | |
723 | ||
8f5986d9 PK |
724 | static void NORETURN error_on_missing_default_upstream(void) |
725 | { | |
726 | struct branch *current_branch = branch_get(NULL); | |
727 | ||
728 | printf(_("%s\n" | |
729 | "Please specify which branch you want to rebase against.\n" | |
730 | "See git-rebase(1) for details.\n" | |
731 | "\n" | |
732 | " git rebase '<branch>'\n" | |
733 | "\n"), | |
734 | current_branch ? _("There is no tracking information for " | |
735 | "the current branch.") : | |
736 | _("You are not currently on a branch.")); | |
737 | ||
738 | if (current_branch) { | |
739 | const char *remote = current_branch->remote_name; | |
740 | ||
741 | if (!remote) | |
742 | remote = _("<remote>"); | |
743 | ||
744 | printf(_("If you wish to set tracking information for this " | |
745 | "branch you can do so with:\n" | |
746 | "\n" | |
747 | " git branch --set-upstream-to=%s/<branch> %s\n" | |
748 | "\n"), | |
749 | remote, current_branch->name); | |
750 | } | |
751 | exit(1); | |
752 | } | |
753 | ||
55071ea2 PK |
754 | int cmd_rebase(int argc, const char **argv, const char *prefix) |
755 | { | |
ac7f467f PK |
756 | struct rebase_options options = { |
757 | .type = REBASE_UNSPECIFIED, | |
b4c8eb02 PK |
758 | .flags = REBASE_NO_QUIET, |
759 | .git_am_opt = STRBUF_INIT, | |
ead98c11 | 760 | .allow_rerere_autoupdate = -1, |
9b3a448b | 761 | .allow_empty_message = 1, |
cda614e4 | 762 | .git_format_patch_opt = STRBUF_INIT, |
ac7f467f PK |
763 | }; |
764 | const char *branch_name; | |
f9573628 | 765 | int ret, flags, total_argc, in_progress = 0; |
06e4775a | 766 | int ok_to_skip_pre_rebase = 0; |
ac7f467f PK |
767 | struct strbuf msg = STRBUF_INIT; |
768 | struct strbuf revisions = STRBUF_INIT; | |
c54dacb5 | 769 | struct strbuf buf = STRBUF_INIT; |
075bc852 | 770 | struct object_id merge_base; |
f9573628 PK |
771 | enum { |
772 | NO_ACTION, | |
773 | ACTION_CONTINUE, | |
122420c2 | 774 | ACTION_SKIP, |
5e5d9619 | 775 | ACTION_ABORT, |
5a614945 | 776 | ACTION_QUIT, |
51e9ea6d PK |
777 | ACTION_EDIT_TODO, |
778 | ACTION_SHOW_CURRENT_PATCH, | |
f9573628 | 779 | } action = NO_ACTION; |
38dbcef2 | 780 | int committer_date_is_author_date = 0; |
53f9e5be | 781 | int ignore_date = 0; |
99d8cc7c | 782 | int ignore_whitespace = 0; |
12026a41 | 783 | const char *gpg_sign = NULL; |
7998dbe1 PK |
784 | int opt_c = -1; |
785 | struct string_list whitespace = STRING_LIST_INIT_NODUP; | |
68e46d78 | 786 | struct string_list exec = STRING_LIST_INIT_NODUP; |
3c3588c7 | 787 | const char *rebase_merges = NULL; |
92d0d74e | 788 | int fork_point = -1; |
ba1905a5 | 789 | struct string_list strategy_options = STRING_LIST_INIT_NODUP; |
9dba809a PK |
790 | struct object_id squash_onto; |
791 | char *squash_onto_name = NULL; | |
f28d40d3 PK |
792 | struct option builtin_rebase_options[] = { |
793 | OPT_STRING(0, "onto", &options.onto_name, | |
794 | N_("revision"), | |
795 | N_("rebase onto given branch instead of upstream")), | |
06e4775a PK |
796 | OPT_BOOL(0, "no-verify", &ok_to_skip_pre_rebase, |
797 | N_("allow pre-rebase hook to run")), | |
b4c8eb02 PK |
798 | OPT_NEGBIT('q', "quiet", &options.flags, |
799 | N_("be quiet. implies --no-stat"), | |
bff014da PK |
800 | REBASE_NO_QUIET| REBASE_VERBOSE | REBASE_DIFFSTAT), |
801 | OPT_BIT('v', "verbose", &options.flags, | |
802 | N_("display a diffstat of what changed upstream"), | |
803 | REBASE_NO_QUIET | REBASE_VERBOSE | REBASE_DIFFSTAT), | |
804 | {OPTION_NEGBIT, 'n', "no-stat", &options.flags, NULL, | |
805 | N_("do not show diffstat of what changed upstream"), | |
806 | PARSE_OPT_NOARG, NULL, REBASE_DIFFSTAT }, | |
99d8cc7c PK |
807 | OPT_BOOL(0, "ignore-whitespace", &ignore_whitespace, |
808 | N_("passed to 'git apply'")), | |
73d51ed0 PK |
809 | OPT_BOOL(0, "signoff", &options.signoff, |
810 | N_("add a Signed-off-by: line to each commit")), | |
38dbcef2 PK |
811 | OPT_BOOL(0, "committer-date-is-author-date", |
812 | &committer_date_is_author_date, | |
813 | N_("passed to 'git am'")), | |
53f9e5be PK |
814 | OPT_BOOL(0, "ignore-date", &ignore_date, |
815 | N_("passed to 'git am'")), | |
1ed9c14f PK |
816 | OPT_BIT('f', "force-rebase", &options.flags, |
817 | N_("cherry-pick all commits, even if unchanged"), | |
818 | REBASE_FORCE), | |
819 | OPT_BIT(0, "no-ff", &options.flags, | |
820 | N_("cherry-pick all commits, even if unchanged"), | |
821 | REBASE_FORCE), | |
f9573628 PK |
822 | OPT_CMDMODE(0, "continue", &action, N_("continue"), |
823 | ACTION_CONTINUE), | |
122420c2 PK |
824 | OPT_CMDMODE(0, "skip", &action, |
825 | N_("skip current patch and continue"), ACTION_SKIP), | |
5e5d9619 PK |
826 | OPT_CMDMODE(0, "abort", &action, |
827 | N_("abort and check out the original branch"), | |
828 | ACTION_ABORT), | |
5a614945 PK |
829 | OPT_CMDMODE(0, "quit", &action, |
830 | N_("abort but keep HEAD where it is"), ACTION_QUIT), | |
51e9ea6d PK |
831 | OPT_CMDMODE(0, "edit-todo", &action, N_("edit the todo list " |
832 | "during an interactive rebase"), ACTION_EDIT_TODO), | |
833 | OPT_CMDMODE(0, "show-current-patch", &action, | |
834 | N_("show the patch file being applied or merged"), | |
835 | ACTION_SHOW_CURRENT_PATCH), | |
361badd3 PK |
836 | { OPTION_CALLBACK, 'm', "merge", &options, NULL, |
837 | N_("use merging strategies to rebase"), | |
838 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, | |
839 | parse_opt_merge }, | |
840 | { OPTION_CALLBACK, 'i', "interactive", &options, NULL, | |
841 | N_("let the user edit the list of commits to rebase"), | |
842 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, | |
843 | parse_opt_interactive }, | |
844 | OPT_SET_INT('p', "preserve-merges", &options.type, | |
845 | N_("try to recreate merges instead of ignoring " | |
846 | "them"), REBASE_PRESERVE_MERGES), | |
ead98c11 PK |
847 | OPT_BOOL(0, "rerere-autoupdate", |
848 | &options.allow_rerere_autoupdate, | |
849 | N_("allow rerere to update index with resolved " | |
850 | "conflict")), | |
002ee2fe PK |
851 | OPT_BOOL('k', "keep-empty", &options.keep_empty, |
852 | N_("preserve empty commits during rebase")), | |
051910a9 PK |
853 | OPT_BOOL(0, "autosquash", &options.autosquash, |
854 | N_("move commits that begin with " | |
855 | "squash!/fixup! under -i")), | |
12026a41 PK |
856 | { OPTION_STRING, 'S', "gpg-sign", &gpg_sign, N_("key-id"), |
857 | N_("GPG-sign commits"), | |
858 | PARSE_OPT_OPTARG, NULL, (intptr_t) "" }, | |
7998dbe1 PK |
859 | OPT_STRING_LIST(0, "whitespace", &whitespace, |
860 | N_("whitespace"), N_("passed to 'git apply'")), | |
861 | OPT_SET_INT('C', NULL, &opt_c, N_("passed to 'git apply'"), | |
862 | REBASE_AM), | |
6defce2b PK |
863 | OPT_BOOL(0, "autostash", &options.autostash, |
864 | N_("automatically stash/stash pop before and after")), | |
68e46d78 PK |
865 | OPT_STRING_LIST('x', "exec", &exec, N_("exec"), |
866 | N_("add exec lines after each commit of the " | |
867 | "editable list")), | |
9b3a448b PK |
868 | OPT_BOOL(0, "allow-empty-message", |
869 | &options.allow_empty_message, | |
870 | N_("allow rebasing commits with empty messages")), | |
3c3588c7 PK |
871 | {OPTION_STRING, 'r', "rebase-merges", &rebase_merges, |
872 | N_("mode"), | |
873 | N_("try to rebase merges instead of skipping them"), | |
874 | PARSE_OPT_OPTARG, NULL, (intptr_t)""}, | |
92d0d74e PK |
875 | OPT_BOOL(0, "fork-point", &fork_point, |
876 | N_("use 'merge-base --fork-point' to refine upstream")), | |
ba1905a5 PK |
877 | OPT_STRING('s', "strategy", &options.strategy, |
878 | N_("strategy"), N_("use the given merge strategy")), | |
879 | OPT_STRING_LIST('X', "strategy-option", &strategy_options, | |
880 | N_("option"), | |
881 | N_("pass the argument through to the merge " | |
882 | "strategy")), | |
9dba809a PK |
883 | OPT_BOOL(0, "root", &options.root, |
884 | N_("rebase all reachable commits up to the root(s)")), | |
f28d40d3 PK |
885 | OPT_END(), |
886 | }; | |
ac7f467f | 887 | |
55071ea2 PK |
888 | /* |
889 | * NEEDSWORK: Once the builtin rebase has been tested enough | |
890 | * and git-legacy-rebase.sh is retired to contrib/, this preamble | |
891 | * can be removed. | |
892 | */ | |
893 | ||
894 | if (!use_builtin_rebase()) { | |
895 | const char *path = mkpath("%s/git-legacy-rebase", | |
896 | git_exec_path()); | |
897 | ||
898 | if (sane_execvp(path, (char **)argv) < 0) | |
899 | die_errno(_("could not exec %s"), path); | |
900 | else | |
901 | BUG("sane_execvp() returned???"); | |
902 | } | |
903 | ||
f28d40d3 PK |
904 | if (argc == 2 && !strcmp(argv[1], "-h")) |
905 | usage_with_options(builtin_rebase_usage, | |
906 | builtin_rebase_options); | |
907 | ||
55071ea2 PK |
908 | prefix = setup_git_directory(); |
909 | trace_repo_setup(prefix); | |
910 | setup_work_tree(); | |
911 | ||
bff014da PK |
912 | git_config(rebase_config, &options); |
913 | ||
0eabf4b9 PK |
914 | strbuf_reset(&buf); |
915 | strbuf_addf(&buf, "%s/applying", apply_dir()); | |
916 | if(file_exists(buf.buf)) | |
917 | die(_("It looks like 'git am' is in progress. Cannot rebase.")); | |
918 | ||
c54dacb5 PK |
919 | if (is_directory(apply_dir())) { |
920 | options.type = REBASE_AM; | |
921 | options.state_dir = apply_dir(); | |
922 | } else if (is_directory(merge_dir())) { | |
923 | strbuf_reset(&buf); | |
924 | strbuf_addf(&buf, "%s/rewritten", merge_dir()); | |
925 | if (is_directory(buf.buf)) { | |
926 | options.type = REBASE_PRESERVE_MERGES; | |
927 | options.flags |= REBASE_INTERACTIVE_EXPLICIT; | |
928 | } else { | |
929 | strbuf_reset(&buf); | |
930 | strbuf_addf(&buf, "%s/interactive", merge_dir()); | |
931 | if(file_exists(buf.buf)) { | |
932 | options.type = REBASE_INTERACTIVE; | |
933 | options.flags |= REBASE_INTERACTIVE_EXPLICIT; | |
934 | } else | |
935 | options.type = REBASE_MERGE; | |
936 | } | |
937 | options.state_dir = merge_dir(); | |
938 | } | |
939 | ||
940 | if (options.type != REBASE_UNSPECIFIED) | |
941 | in_progress = 1; | |
942 | ||
f9573628 | 943 | total_argc = argc; |
f28d40d3 PK |
944 | argc = parse_options(argc, argv, prefix, |
945 | builtin_rebase_options, | |
946 | builtin_rebase_usage, 0); | |
947 | ||
f9573628 PK |
948 | if (action != NO_ACTION && total_argc != 2) { |
949 | usage_with_options(builtin_rebase_usage, | |
950 | builtin_rebase_options); | |
951 | } | |
952 | ||
f28d40d3 PK |
953 | if (argc > 2) |
954 | usage_with_options(builtin_rebase_usage, | |
955 | builtin_rebase_options); | |
ac7f467f | 956 | |
d732a570 PK |
957 | if (action != NO_ACTION && !in_progress) |
958 | die(_("No rebase in progress?")); | |
959 | ||
51e9ea6d PK |
960 | if (action == ACTION_EDIT_TODO && !is_interactive(&options)) |
961 | die(_("The --edit-todo action can only be used during " | |
962 | "interactive rebase.")); | |
963 | ||
f9573628 PK |
964 | switch (action) { |
965 | case ACTION_CONTINUE: { | |
966 | struct object_id head; | |
967 | struct lock_file lock_file = LOCK_INIT; | |
968 | int fd; | |
969 | ||
970 | options.action = "continue"; | |
971 | ||
972 | /* Sanity check */ | |
973 | if (get_oid("HEAD", &head)) | |
974 | die(_("Cannot read HEAD")); | |
975 | ||
976 | fd = hold_locked_index(&lock_file, 0); | |
977 | if (read_index(the_repository->index) < 0) | |
978 | die(_("could not read index")); | |
979 | refresh_index(the_repository->index, REFRESH_QUIET, NULL, NULL, | |
980 | NULL); | |
981 | if (0 <= fd) | |
982 | update_index_if_able(the_repository->index, | |
983 | &lock_file); | |
984 | rollback_lock_file(&lock_file); | |
985 | ||
5b02ca38 | 986 | if (has_unstaged_changes(the_repository, 1)) { |
f9573628 PK |
987 | puts(_("You must edit all merge conflicts and then\n" |
988 | "mark them as resolved using git add")); | |
989 | exit(1); | |
990 | } | |
991 | if (read_basic_state(&options)) | |
992 | exit(1); | |
993 | goto run_rebase; | |
994 | } | |
122420c2 PK |
995 | case ACTION_SKIP: { |
996 | struct string_list merge_rr = STRING_LIST_INIT_DUP; | |
997 | ||
998 | options.action = "skip"; | |
999 | ||
1000 | rerere_clear(&merge_rr); | |
1001 | string_list_clear(&merge_rr, 1); | |
1002 | ||
fa443d40 | 1003 | if (reset_head(NULL, "reset", NULL, 0, NULL, NULL) < 0) |
122420c2 PK |
1004 | die(_("could not discard worktree changes")); |
1005 | if (read_basic_state(&options)) | |
1006 | exit(1); | |
1007 | goto run_rebase; | |
1008 | } | |
5e5d9619 PK |
1009 | case ACTION_ABORT: { |
1010 | struct string_list merge_rr = STRING_LIST_INIT_DUP; | |
1011 | options.action = "abort"; | |
1012 | ||
1013 | rerere_clear(&merge_rr); | |
1014 | string_list_clear(&merge_rr, 1); | |
1015 | ||
1016 | if (read_basic_state(&options)) | |
1017 | exit(1); | |
1018 | if (reset_head(&options.orig_head, "reset", | |
fa443d40 | 1019 | options.head_name, 0, NULL, NULL) < 0) |
5e5d9619 PK |
1020 | die(_("could not move back to %s"), |
1021 | oid_to_hex(&options.orig_head)); | |
1022 | ret = finish_rebase(&options); | |
1023 | goto cleanup; | |
1024 | } | |
5a614945 PK |
1025 | case ACTION_QUIT: { |
1026 | strbuf_reset(&buf); | |
1027 | strbuf_addstr(&buf, options.state_dir); | |
1028 | ret = !!remove_dir_recursively(&buf, 0); | |
1029 | if (ret) | |
1030 | die(_("could not remove '%s'"), options.state_dir); | |
1031 | goto cleanup; | |
1032 | } | |
51e9ea6d PK |
1033 | case ACTION_EDIT_TODO: |
1034 | options.action = "edit-todo"; | |
1035 | options.dont_finish_rebase = 1; | |
1036 | goto run_rebase; | |
1037 | case ACTION_SHOW_CURRENT_PATCH: | |
1038 | options.action = "show-current-patch"; | |
1039 | options.dont_finish_rebase = 1; | |
1040 | goto run_rebase; | |
1041 | case NO_ACTION: | |
1042 | break; | |
f9573628 | 1043 | default: |
51e9ea6d | 1044 | BUG("action: %d", action); |
f9573628 PK |
1045 | } |
1046 | ||
c54dacb5 PK |
1047 | /* Make sure no rebase is in progress */ |
1048 | if (in_progress) { | |
1049 | const char *last_slash = strrchr(options.state_dir, '/'); | |
1050 | const char *state_dir_base = | |
1051 | last_slash ? last_slash + 1 : options.state_dir; | |
1052 | const char *cmd_live_rebase = | |
1053 | "git rebase (--continue | --abort | --skip)"; | |
1054 | strbuf_reset(&buf); | |
1055 | strbuf_addf(&buf, "rm -fr \"%s\"", options.state_dir); | |
1056 | die(_("It seems that there is already a %s directory, and\n" | |
1057 | "I wonder if you are in the middle of another rebase. " | |
1058 | "If that is the\n" | |
1059 | "case, please try\n\t%s\n" | |
1060 | "If that is not the case, please\n\t%s\n" | |
1061 | "and run me again. I am stopping in case you still " | |
1062 | "have something\n" | |
1063 | "valuable there.\n"), | |
1064 | state_dir_base, cmd_live_rebase, buf.buf); | |
1065 | } | |
1066 | ||
b4c8eb02 PK |
1067 | if (!(options.flags & REBASE_NO_QUIET)) |
1068 | strbuf_addstr(&options.git_am_opt, " -q"); | |
ac7f467f | 1069 | |
38dbcef2 PK |
1070 | if (committer_date_is_author_date) { |
1071 | strbuf_addstr(&options.git_am_opt, | |
1072 | " --committer-date-is-author-date"); | |
1073 | options.flags |= REBASE_FORCE; | |
1074 | } | |
1075 | ||
99d8cc7c PK |
1076 | if (ignore_whitespace) |
1077 | strbuf_addstr(&options.git_am_opt, " --ignore-whitespace"); | |
1078 | ||
53f9e5be PK |
1079 | if (ignore_date) { |
1080 | strbuf_addstr(&options.git_am_opt, " --ignore-date"); | |
1081 | options.flags |= REBASE_FORCE; | |
1082 | } | |
1083 | ||
002ee2fe PK |
1084 | if (options.keep_empty) |
1085 | imply_interactive(&options, "--keep-empty"); | |
1086 | ||
12026a41 PK |
1087 | if (gpg_sign) { |
1088 | free(options.gpg_sign_opt); | |
1089 | options.gpg_sign_opt = xstrfmt("-S%s", gpg_sign); | |
1090 | } | |
1091 | ||
7998dbe1 PK |
1092 | if (opt_c >= 0) |
1093 | strbuf_addf(&options.git_am_opt, " -C%d", opt_c); | |
1094 | ||
1095 | if (whitespace.nr) { | |
1096 | int i; | |
1097 | ||
1098 | for (i = 0; i < whitespace.nr; i++) { | |
1099 | const char *item = whitespace.items[i].string; | |
1100 | ||
1101 | strbuf_addf(&options.git_am_opt, " --whitespace=%s", | |
1102 | item); | |
1103 | ||
1104 | if ((!strcmp(item, "fix")) || (!strcmp(item, "strip"))) | |
1105 | options.flags |= REBASE_FORCE; | |
1106 | } | |
1107 | } | |
1108 | ||
68e46d78 PK |
1109 | if (exec.nr) { |
1110 | int i; | |
1111 | ||
1112 | imply_interactive(&options, "--exec"); | |
1113 | ||
1114 | strbuf_reset(&buf); | |
1115 | for (i = 0; i < exec.nr; i++) | |
1116 | strbuf_addf(&buf, "exec %s\n", exec.items[i].string); | |
1117 | options.cmd = xstrdup(buf.buf); | |
1118 | } | |
1119 | ||
3c3588c7 PK |
1120 | if (rebase_merges) { |
1121 | if (!*rebase_merges) | |
1122 | ; /* default mode; do nothing */ | |
1123 | else if (!strcmp("rebase-cousins", rebase_merges)) | |
1124 | options.rebase_cousins = 1; | |
1125 | else if (strcmp("no-rebase-cousins", rebase_merges)) | |
1126 | die(_("Unknown mode: %s"), rebase_merges); | |
1127 | options.rebase_merges = 1; | |
1128 | imply_interactive(&options, "--rebase-merges"); | |
1129 | } | |
1130 | ||
ba1905a5 PK |
1131 | if (strategy_options.nr) { |
1132 | int i; | |
1133 | ||
1134 | if (!options.strategy) | |
1135 | options.strategy = "recursive"; | |
1136 | ||
1137 | strbuf_reset(&buf); | |
1138 | for (i = 0; i < strategy_options.nr; i++) | |
1139 | strbuf_addf(&buf, " --%s", | |
1140 | strategy_options.items[i].string); | |
1141 | options.strategy_opts = xstrdup(buf.buf); | |
1142 | } | |
1143 | ||
1144 | if (options.strategy) { | |
1145 | options.strategy = xstrdup(options.strategy); | |
1146 | switch (options.type) { | |
1147 | case REBASE_AM: | |
1148 | die(_("--strategy requires --merge or --interactive")); | |
1149 | case REBASE_MERGE: | |
1150 | case REBASE_INTERACTIVE: | |
1151 | case REBASE_PRESERVE_MERGES: | |
1152 | /* compatible */ | |
1153 | break; | |
1154 | case REBASE_UNSPECIFIED: | |
1155 | options.type = REBASE_MERGE; | |
1156 | break; | |
1157 | default: | |
1158 | BUG("unhandled rebase type (%d)", options.type); | |
1159 | } | |
1160 | } | |
1161 | ||
9dba809a PK |
1162 | if (options.root && !options.onto_name) |
1163 | imply_interactive(&options, "--root without --onto"); | |
1164 | ||
cda614e4 PK |
1165 | if (isatty(2) && options.flags & REBASE_NO_QUIET) |
1166 | strbuf_addstr(&options.git_format_patch_opt, " --progress"); | |
1167 | ||
ac7f467f PK |
1168 | switch (options.type) { |
1169 | case REBASE_MERGE: | |
1170 | case REBASE_INTERACTIVE: | |
1171 | case REBASE_PRESERVE_MERGES: | |
1172 | options.state_dir = merge_dir(); | |
1173 | break; | |
1174 | case REBASE_AM: | |
1175 | options.state_dir = apply_dir(); | |
1176 | break; | |
1177 | default: | |
1178 | /* the default rebase backend is `--am` */ | |
1179 | options.type = REBASE_AM; | |
1180 | options.state_dir = apply_dir(); | |
1181 | break; | |
1182 | } | |
1183 | ||
b361bd75 PK |
1184 | if (options.git_am_opt.len) { |
1185 | const char *p; | |
1186 | ||
1187 | /* all am options except -q are compatible only with --am */ | |
1188 | strbuf_reset(&buf); | |
1189 | strbuf_addbuf(&buf, &options.git_am_opt); | |
1190 | strbuf_addch(&buf, ' '); | |
1191 | while ((p = strstr(buf.buf, " -q "))) | |
1192 | strbuf_splice(&buf, p - buf.buf, 4, " ", 1); | |
1193 | strbuf_trim(&buf); | |
1194 | ||
1195 | if (is_interactive(&options) && buf.len) | |
1196 | die(_("error: cannot combine interactive options " | |
1197 | "(--interactive, --exec, --rebase-merges, " | |
1198 | "--preserve-merges, --keep-empty, --root + " | |
1199 | "--onto) with am options (%s)"), buf.buf); | |
1200 | if (options.type == REBASE_MERGE && buf.len) | |
1201 | die(_("error: cannot combine merge options (--merge, " | |
1202 | "--strategy, --strategy-option) with am options " | |
1203 | "(%s)"), buf.buf); | |
1204 | } | |
1205 | ||
73d51ed0 PK |
1206 | if (options.signoff) { |
1207 | if (options.type == REBASE_PRESERVE_MERGES) | |
1208 | die("cannot combine '--signoff' with " | |
1209 | "'--preserve-merges'"); | |
1210 | strbuf_addstr(&options.git_am_opt, " --signoff"); | |
1211 | options.flags |= REBASE_FORCE; | |
1212 | } | |
1213 | ||
b361bd75 PK |
1214 | if (options.type == REBASE_PRESERVE_MERGES) |
1215 | /* | |
1216 | * Note: incompatibility with --signoff handled in signoff block above | |
1217 | * Note: incompatibility with --interactive is just a strong warning; | |
1218 | * git-rebase.txt caveats with "unless you know what you are doing" | |
1219 | */ | |
1220 | if (options.rebase_merges) | |
f240918d | 1221 | die(_("error: cannot combine '--preserve-merges' with " |
b361bd75 PK |
1222 | "'--rebase-merges'")); |
1223 | ||
1224 | if (options.rebase_merges) { | |
1225 | if (strategy_options.nr) | |
f240918d | 1226 | die(_("error: cannot combine '--rebase-merges' with " |
b361bd75 PK |
1227 | "'--strategy-option'")); |
1228 | if (options.strategy) | |
f240918d | 1229 | die(_("error: cannot combine '--rebase-merges' with " |
b361bd75 PK |
1230 | "'--strategy'")); |
1231 | } | |
1232 | ||
ac7f467f | 1233 | if (!options.root) { |
8f5986d9 PK |
1234 | if (argc < 1) { |
1235 | struct branch *branch; | |
1236 | ||
1237 | branch = branch_get(NULL); | |
1238 | options.upstream_name = branch_get_upstream(branch, | |
1239 | NULL); | |
1240 | if (!options.upstream_name) | |
1241 | error_on_missing_default_upstream(); | |
1242 | if (fork_point < 0) | |
1243 | fork_point = 1; | |
1244 | } else { | |
f28d40d3 | 1245 | options.upstream_name = argv[0]; |
ac7f467f PK |
1246 | argc--; |
1247 | argv++; | |
1248 | if (!strcmp(options.upstream_name, "-")) | |
1249 | options.upstream_name = "@{-1}"; | |
1250 | } | |
1251 | options.upstream = peel_committish(options.upstream_name); | |
1252 | if (!options.upstream) | |
1253 | die(_("invalid upstream '%s'"), options.upstream_name); | |
06e4775a | 1254 | options.upstream_arg = options.upstream_name; |
9dba809a PK |
1255 | } else { |
1256 | if (!options.onto_name) { | |
1257 | if (commit_tree("", 0, the_hash_algo->empty_tree, NULL, | |
1258 | &squash_onto, NULL, NULL) < 0) | |
1259 | die(_("Could not create new root commit")); | |
1260 | options.squash_onto = &squash_onto; | |
1261 | options.onto_name = squash_onto_name = | |
1262 | xstrdup(oid_to_hex(&squash_onto)); | |
1263 | } | |
1264 | options.upstream_name = NULL; | |
1265 | options.upstream = NULL; | |
1266 | if (argc > 1) | |
1267 | usage_with_options(builtin_rebase_usage, | |
1268 | builtin_rebase_options); | |
1269 | options.upstream_arg = "--root"; | |
1270 | } | |
ac7f467f PK |
1271 | |
1272 | /* Make sure the branch to rebase onto is valid. */ | |
1273 | if (!options.onto_name) | |
1274 | options.onto_name = options.upstream_name; | |
1275 | if (strstr(options.onto_name, "...")) { | |
075bc852 PK |
1276 | if (get_oid_mb(options.onto_name, &merge_base) < 0) |
1277 | die(_("'%s': need exactly one merge base"), | |
1278 | options.onto_name); | |
1279 | options.onto = lookup_commit_or_die(&merge_base, | |
1280 | options.onto_name); | |
ac7f467f PK |
1281 | } else { |
1282 | options.onto = peel_committish(options.onto_name); | |
1283 | if (!options.onto) | |
1284 | die(_("Does not point to a valid commit '%s'"), | |
1285 | options.onto_name); | |
1286 | } | |
1287 | ||
1288 | /* | |
1289 | * If the branch to rebase is given, that is the branch we will rebase | |
1290 | * branch_name -- branch/commit being rebased, or | |
1291 | * HEAD (already detached) | |
1292 | * orig_head -- commit object name of tip of the branch before rebasing | |
d4c569f8 | 1293 | * head_name -- refs/heads/<that-branch> or NULL (detached HEAD) |
ac7f467f | 1294 | */ |
e65123a7 PK |
1295 | if (argc == 1) { |
1296 | /* Is it "rebase other branchname" or "rebase other commit"? */ | |
1297 | branch_name = argv[0]; | |
1298 | options.switch_to = argv[0]; | |
1299 | ||
1300 | /* Is it a local branch? */ | |
1301 | strbuf_reset(&buf); | |
1302 | strbuf_addf(&buf, "refs/heads/%s", branch_name); | |
1303 | if (!read_ref(buf.buf, &options.orig_head)) | |
1304 | options.head_name = xstrdup(buf.buf); | |
1305 | /* If not is it a valid ref (branch or commit)? */ | |
1306 | else if (!get_oid(branch_name, &options.orig_head)) | |
1307 | options.head_name = NULL; | |
1308 | else | |
1309 | die(_("fatal: no such branch/commit '%s'"), | |
1310 | branch_name); | |
1311 | } else if (argc == 0) { | |
ac7f467f PK |
1312 | /* Do not need to switch branches, we are already on it. */ |
1313 | options.head_name = | |
1314 | xstrdup_or_null(resolve_ref_unsafe("HEAD", 0, NULL, | |
1315 | &flags)); | |
1316 | if (!options.head_name) | |
1317 | die(_("No such ref: %s"), "HEAD"); | |
1318 | if (flags & REF_ISSYMREF) { | |
1319 | if (!skip_prefix(options.head_name, | |
1320 | "refs/heads/", &branch_name)) | |
1321 | branch_name = options.head_name; | |
1322 | ||
1323 | } else { | |
d4c569f8 PK |
1324 | free(options.head_name); |
1325 | options.head_name = NULL; | |
ac7f467f PK |
1326 | branch_name = "HEAD"; |
1327 | } | |
1328 | if (get_oid("HEAD", &options.orig_head)) | |
1329 | die(_("Could not resolve HEAD to a revision")); | |
e65123a7 PK |
1330 | } else |
1331 | BUG("unexpected number of arguments left to parse"); | |
ac7f467f | 1332 | |
92d0d74e PK |
1333 | if (fork_point > 0) { |
1334 | struct commit *head = | |
1335 | lookup_commit_reference(the_repository, | |
1336 | &options.orig_head); | |
1337 | options.restrict_revision = | |
1338 | get_fork_point(options.upstream_name, head); | |
1339 | } | |
1340 | ||
e0333e5c PK |
1341 | if (read_index(the_repository->index) < 0) |
1342 | die(_("could not read index")); | |
1343 | ||
6defce2b PK |
1344 | if (options.autostash) { |
1345 | struct lock_file lock_file = LOCK_INIT; | |
1346 | int fd; | |
1347 | ||
1348 | fd = hold_locked_index(&lock_file, 0); | |
1349 | refresh_cache(REFRESH_QUIET); | |
1350 | if (0 <= fd) | |
1351 | update_index_if_able(&the_index, &lock_file); | |
1352 | rollback_lock_file(&lock_file); | |
1353 | ||
5b02ca38 NTND |
1354 | if (has_unstaged_changes(the_repository, 1) || |
1355 | has_uncommitted_changes(the_repository, 1)) { | |
6defce2b PK |
1356 | const char *autostash = |
1357 | state_dir_path("autostash", &options); | |
1358 | struct child_process stash = CHILD_PROCESS_INIT; | |
1359 | struct object_id oid; | |
1360 | struct commit *head = | |
1361 | lookup_commit_reference(the_repository, | |
1362 | &options.orig_head); | |
1363 | ||
1364 | argv_array_pushl(&stash.args, | |
1365 | "stash", "create", "autostash", NULL); | |
1366 | stash.git_cmd = 1; | |
1367 | stash.no_stdin = 1; | |
1368 | strbuf_reset(&buf); | |
1369 | if (capture_command(&stash, &buf, GIT_MAX_HEXSZ)) | |
1370 | die(_("Cannot autostash")); | |
1371 | strbuf_trim_trailing_newline(&buf); | |
1372 | if (get_oid(buf.buf, &oid)) | |
1373 | die(_("Unexpected stash response: '%s'"), | |
1374 | buf.buf); | |
1375 | strbuf_reset(&buf); | |
1376 | strbuf_add_unique_abbrev(&buf, &oid, DEFAULT_ABBREV); | |
1377 | ||
1378 | if (safe_create_leading_directories_const(autostash)) | |
1379 | die(_("Could not create directory for '%s'"), | |
1380 | options.state_dir); | |
12aeb00a | 1381 | write_file(autostash, "%s", oid_to_hex(&oid)); |
6defce2b PK |
1382 | printf(_("Created autostash: %s\n"), buf.buf); |
1383 | if (reset_head(&head->object.oid, "reset --hard", | |
fa443d40 | 1384 | NULL, 0, NULL, NULL) < 0) |
6defce2b PK |
1385 | die(_("could not reset --hard")); |
1386 | printf(_("HEAD is now at %s"), | |
1387 | find_unique_abbrev(&head->object.oid, | |
1388 | DEFAULT_ABBREV)); | |
1389 | strbuf_reset(&buf); | |
1390 | pp_commit_easy(CMIT_FMT_ONELINE, head, &buf); | |
1391 | if (buf.len > 0) | |
1392 | printf(" %s", buf.buf); | |
1393 | putchar('\n'); | |
1394 | ||
1395 | if (discard_index(the_repository->index) < 0 || | |
1396 | read_index(the_repository->index) < 0) | |
1397 | die(_("could not read index")); | |
1398 | } | |
1399 | } | |
1400 | ||
5b02ca38 | 1401 | if (require_clean_work_tree(the_repository, "rebase", |
e0333e5c PK |
1402 | _("Please commit or stash them."), 1, 1)) { |
1403 | ret = 1; | |
1404 | goto cleanup; | |
ac7f467f PK |
1405 | } |
1406 | ||
9a48a615 PK |
1407 | /* |
1408 | * Now we are rebasing commits upstream..orig_head (or with --root, | |
1409 | * everything leading up to orig_head) on top of onto. | |
1410 | */ | |
1411 | ||
1412 | /* | |
1413 | * Check if we are already based on onto with linear history, | |
1414 | * but this should be done only when upstream and onto are the same | |
1415 | * and if this is not an interactive rebase. | |
1416 | */ | |
1417 | if (can_fast_forward(options.onto, &options.orig_head, &merge_base) && | |
1418 | !is_interactive(&options) && !options.restrict_revision && | |
9dba809a | 1419 | options.upstream && |
9a48a615 PK |
1420 | !oidcmp(&options.upstream->object.oid, &options.onto->object.oid)) { |
1421 | int flag; | |
1422 | ||
1ed9c14f | 1423 | if (!(options.flags & REBASE_FORCE)) { |
e65123a7 PK |
1424 | /* Lazily switch to the target branch if needed... */ |
1425 | if (options.switch_to) { | |
1426 | struct object_id oid; | |
1427 | ||
1428 | if (get_oid(options.switch_to, &oid) < 0) { | |
1429 | ret = !!error(_("could not parse '%s'"), | |
1430 | options.switch_to); | |
1431 | goto cleanup; | |
1432 | } | |
1433 | ||
1434 | strbuf_reset(&buf); | |
1435 | strbuf_addf(&buf, "rebase: checkout %s", | |
1436 | options.switch_to); | |
1437 | if (reset_head(&oid, "checkout", | |
fa443d40 PK |
1438 | options.head_name, 0, |
1439 | NULL, NULL) < 0) { | |
e65123a7 PK |
1440 | ret = !!error(_("could not switch to " |
1441 | "%s"), | |
1442 | options.switch_to); | |
1443 | goto cleanup; | |
1444 | } | |
1445 | } | |
1446 | ||
1ed9c14f PK |
1447 | if (!(options.flags & REBASE_NO_QUIET)) |
1448 | ; /* be quiet */ | |
1449 | else if (!strcmp(branch_name, "HEAD") && | |
1450 | resolve_ref_unsafe("HEAD", 0, NULL, &flag)) | |
1451 | puts(_("HEAD is up to date.")); | |
1452 | else | |
1453 | printf(_("Current branch %s is up to date.\n"), | |
1454 | branch_name); | |
1455 | ret = !!finish_rebase(&options); | |
1456 | goto cleanup; | |
1457 | } else if (!(options.flags & REBASE_NO_QUIET)) | |
9a48a615 PK |
1458 | ; /* be quiet */ |
1459 | else if (!strcmp(branch_name, "HEAD") && | |
1460 | resolve_ref_unsafe("HEAD", 0, NULL, &flag)) | |
1461 | puts(_("HEAD is up to date, rebase forced.")); | |
1462 | else | |
1463 | printf(_("Current branch %s is up to date, rebase " | |
1464 | "forced.\n"), branch_name); | |
1465 | } | |
1466 | ||
06e4775a PK |
1467 | /* If a hook exists, give it a chance to interrupt*/ |
1468 | if (!ok_to_skip_pre_rebase && | |
1469 | run_hook_le(NULL, "pre-rebase", options.upstream_arg, | |
1470 | argc ? argv[0] : NULL, NULL)) | |
1471 | die(_("The pre-rebase hook refused to rebase.")); | |
1472 | ||
bff014da PK |
1473 | if (options.flags & REBASE_DIFFSTAT) { |
1474 | struct diff_options opts; | |
1475 | ||
1476 | if (options.flags & REBASE_VERBOSE) | |
1477 | printf(_("Changes from %s to %s:\n"), | |
1478 | oid_to_hex(&merge_base), | |
1479 | oid_to_hex(&options.onto->object.oid)); | |
1480 | ||
1481 | /* We want color (if set), but no pager */ | |
1482 | diff_setup(&opts); | |
1483 | opts.stat_width = -1; /* use full terminal width */ | |
1484 | opts.stat_graph_width = -1; /* respect statGraphWidth config */ | |
1485 | opts.output_format |= | |
1486 | DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT; | |
1487 | opts.detect_rename = DIFF_DETECT_RENAME; | |
1488 | diff_setup_done(&opts); | |
1489 | diff_tree_oid(&merge_base, &options.onto->object.oid, | |
1490 | "", &opts); | |
1491 | diffcore_std(&opts); | |
1492 | diff_flush(&opts); | |
1493 | } | |
1494 | ||
361badd3 PK |
1495 | if (is_interactive(&options)) |
1496 | goto run_rebase; | |
1497 | ||
bff014da PK |
1498 | /* Detach HEAD and reset the tree */ |
1499 | if (options.flags & REBASE_NO_QUIET) | |
1500 | printf(_("First, rewinding head to replay your work on top of " | |
1501 | "it...\n")); | |
1502 | ||
ac7f467f | 1503 | strbuf_addf(&msg, "rebase: checkout %s", options.onto_name); |
fa443d40 PK |
1504 | if (reset_head(&options.onto->object.oid, "checkout", NULL, 1, |
1505 | NULL, msg.buf)) | |
ac7f467f PK |
1506 | die(_("Could not detach HEAD")); |
1507 | strbuf_release(&msg); | |
1508 | ||
7eecfa56 PK |
1509 | /* |
1510 | * If the onto is a proper descendant of the tip of the branch, then | |
1511 | * we just fast-forwarded. | |
1512 | */ | |
1513 | strbuf_reset(&msg); | |
1514 | if (!oidcmp(&merge_base, &options.orig_head)) { | |
1515 | printf(_("Fast-forwarded %s to %s. \n"), | |
1516 | branch_name, options.onto_name); | |
1517 | strbuf_addf(&msg, "rebase finished: %s onto %s", | |
1518 | options.head_name ? options.head_name : "detached HEAD", | |
1519 | oid_to_hex(&options.onto->object.oid)); | |
1520 | reset_head(NULL, "Fast-forwarded", options.head_name, 0, | |
1521 | "HEAD", msg.buf); | |
1522 | strbuf_release(&msg); | |
1523 | ret = !!finish_rebase(&options); | |
1524 | goto cleanup; | |
1525 | } | |
1526 | ||
ac7f467f PK |
1527 | strbuf_addf(&revisions, "%s..%s", |
1528 | options.root ? oid_to_hex(&options.onto->object.oid) : | |
1529 | (options.restrict_revision ? | |
1530 | oid_to_hex(&options.restrict_revision->object.oid) : | |
1531 | oid_to_hex(&options.upstream->object.oid)), | |
1532 | oid_to_hex(&options.orig_head)); | |
1533 | ||
1534 | options.revisions = revisions.buf; | |
1535 | ||
f9573628 | 1536 | run_rebase: |
ac7f467f PK |
1537 | ret = !!run_specific_rebase(&options); |
1538 | ||
e0333e5c | 1539 | cleanup: |
ac7f467f PK |
1540 | strbuf_release(&revisions); |
1541 | free(options.head_name); | |
12026a41 | 1542 | free(options.gpg_sign_opt); |
68e46d78 | 1543 | free(options.cmd); |
9dba809a | 1544 | free(squash_onto_name); |
ac7f467f | 1545 | return ret; |
55071ea2 | 1546 | } |