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Commit | Line | Data |
---|---|---|
73c2779f PT |
1 | /* |
2 | * Builtin "git am" | |
3 | * | |
4 | * Based on git-am.sh by Junio C Hamano. | |
5 | */ | |
f8adbec9 | 6 | #define USE_THE_INDEX_COMPATIBILITY_MACROS |
73c2779f | 7 | #include "cache.h" |
b2141fc1 | 8 | #include "config.h" |
73c2779f | 9 | #include "builtin.h" |
d807c4a0 | 10 | #include "exec-cmd.h" |
8c3bd9e2 PT |
11 | #include "parse-options.h" |
12 | #include "dir.h" | |
11c2177f | 13 | #include "run-command.h" |
3e20dcf3 | 14 | #include "quote.h" |
db86e61c | 15 | #include "tempfile.h" |
38a824fe | 16 | #include "lockfile.h" |
c9e8d960 PT |
17 | #include "cache-tree.h" |
18 | #include "refs.h" | |
19 | #include "commit.h" | |
32a5fcbf PT |
20 | #include "diff.h" |
21 | #include "diffcore.h" | |
9990080c PT |
22 | #include "unpack-trees.h" |
23 | #include "branch.h" | |
eb898b83 | 24 | #include "sequencer.h" |
84f3de28 PT |
25 | #include "revision.h" |
26 | #include "merge-recursive.h" | |
df2760a5 PT |
27 | #include "revision.h" |
28 | #include "log-tree.h" | |
88b291fe | 29 | #include "notes-utils.h" |
f1cb96d6 | 30 | #include "rerere.h" |
7ff26832 | 31 | #include "prompt.h" |
4b98bae2 | 32 | #include "mailinfo.h" |
edfac5eb | 33 | #include "apply.h" |
a77598ef | 34 | #include "string-list.h" |
3836d88a | 35 | #include "packfile.h" |
f86bcc7b | 36 | #include "repository.h" |
3e20dcf3 | 37 | |
38a824fe PT |
38 | /** |
39 | * Returns the length of the first line of msg. | |
40 | */ | |
41 | static int linelen(const char *msg) | |
42 | { | |
43 | return strchrnul(msg, '\n') - msg; | |
44 | } | |
45 | ||
5ae41c79 PT |
46 | /** |
47 | * Returns true if `str` consists of only whitespace, false otherwise. | |
48 | */ | |
49 | static int str_isspace(const char *str) | |
50 | { | |
51 | for (; *str; str++) | |
52 | if (!isspace(*str)) | |
53 | return 0; | |
54 | ||
55 | return 1; | |
56 | } | |
57 | ||
11c2177f PT |
58 | enum patch_format { |
59 | PATCH_FORMAT_UNKNOWN = 0, | |
5ae41c79 | 60 | PATCH_FORMAT_MBOX, |
336108c1 | 61 | PATCH_FORMAT_STGIT, |
94cd175c | 62 | PATCH_FORMAT_STGIT_SERIES, |
d9925d1a EW |
63 | PATCH_FORMAT_HG, |
64 | PATCH_FORMAT_MBOXRD | |
11c2177f | 65 | }; |
8c3bd9e2 | 66 | |
4f1b6961 PT |
67 | enum keep_type { |
68 | KEEP_FALSE = 0, | |
69 | KEEP_TRUE, /* pass -k flag to git-mailinfo */ | |
70 | KEEP_NON_PATCH /* pass -b flag to git-mailinfo */ | |
71 | }; | |
72 | ||
9b646617 PT |
73 | enum scissors_type { |
74 | SCISSORS_UNSET = -1, | |
75 | SCISSORS_FALSE = 0, /* pass --no-scissors to git-mailinfo */ | |
76 | SCISSORS_TRUE /* pass --scissors to git-mailinfo */ | |
77 | }; | |
78 | ||
b5e82359 PT |
79 | enum signoff_type { |
80 | SIGNOFF_FALSE = 0, | |
81 | SIGNOFF_TRUE = 1, | |
82 | SIGNOFF_EXPLICIT /* --signoff was set on the command-line */ | |
83 | }; | |
84 | ||
8c3bd9e2 PT |
85 | struct am_state { |
86 | /* state directory path */ | |
87 | char *dir; | |
88 | ||
89 | /* current and last patch numbers, 1-indexed */ | |
90 | int cur; | |
91 | int last; | |
11c2177f | 92 | |
3e20dcf3 PT |
93 | /* commit metadata and message */ |
94 | char *author_name; | |
95 | char *author_email; | |
96 | char *author_date; | |
97 | char *msg; | |
98 | size_t msg_len; | |
99 | ||
13b97ea5 | 100 | /* when --rebasing, records the original commit the patch came from */ |
8c88769b | 101 | struct object_id orig_commit; |
13b97ea5 | 102 | |
11c2177f PT |
103 | /* number of digits in patch filename */ |
104 | int prec; | |
5d28cf78 PT |
105 | |
106 | /* various operating modes and command line options */ | |
7ff26832 | 107 | int interactive; |
84f3de28 | 108 | int threeway; |
5d28cf78 | 109 | int quiet; |
b5e82359 | 110 | int signoff; /* enum signoff_type */ |
ef7ee16d | 111 | int utf8; |
4f1b6961 | 112 | int keep; /* enum keep_type */ |
702cbaad | 113 | int message_id; |
9b646617 | 114 | int scissors; /* enum scissors_type */ |
257e8cec | 115 | struct argv_array git_apply_opts; |
2d83109a | 116 | const char *resolvemsg; |
0cd4bcba | 117 | int committer_date_is_author_date; |
f07adb62 | 118 | int ignore_date; |
f1cb96d6 | 119 | int allow_rerere_autoupdate; |
7e35dacb | 120 | const char *sign_commit; |
35bdcc59 | 121 | int rebasing; |
8c3bd9e2 PT |
122 | }; |
123 | ||
124 | /** | |
16d2676c | 125 | * Initializes am_state with the default values. |
8c3bd9e2 | 126 | */ |
16d2676c | 127 | static void am_state_init(struct am_state *state) |
8c3bd9e2 | 128 | { |
7e35dacb PT |
129 | int gpgsign; |
130 | ||
8c3bd9e2 PT |
131 | memset(state, 0, sizeof(*state)); |
132 | ||
16d2676c | 133 | state->dir = git_pathdup("rebase-apply"); |
11c2177f PT |
134 | |
135 | state->prec = 4; | |
ef7ee16d | 136 | |
e97a5e76 RL |
137 | git_config_get_bool("am.threeway", &state->threeway); |
138 | ||
ef7ee16d | 139 | state->utf8 = 1; |
702cbaad PT |
140 | |
141 | git_config_get_bool("am.messageid", &state->message_id); | |
9b646617 PT |
142 | |
143 | state->scissors = SCISSORS_UNSET; | |
257e8cec PT |
144 | |
145 | argv_array_init(&state->git_apply_opts); | |
7e35dacb PT |
146 | |
147 | if (!git_config_get_bool("commit.gpgsign", &gpgsign)) | |
148 | state->sign_commit = gpgsign ? "" : NULL; | |
8c3bd9e2 PT |
149 | } |
150 | ||
151 | /** | |
152 | * Releases memory allocated by an am_state. | |
153 | */ | |
154 | static void am_state_release(struct am_state *state) | |
155 | { | |
156 | free(state->dir); | |
3e20dcf3 PT |
157 | free(state->author_name); |
158 | free(state->author_email); | |
159 | free(state->author_date); | |
160 | free(state->msg); | |
257e8cec | 161 | argv_array_clear(&state->git_apply_opts); |
8c3bd9e2 PT |
162 | } |
163 | ||
164 | /** | |
165 | * Returns path relative to the am_state directory. | |
166 | */ | |
167 | static inline const char *am_path(const struct am_state *state, const char *path) | |
168 | { | |
169 | return mkpath("%s/%s", state->dir, path); | |
170 | } | |
171 | ||
25b763ba JH |
172 | /** |
173 | * For convenience to call write_file() | |
174 | */ | |
1dad879a RS |
175 | static void write_state_text(const struct am_state *state, |
176 | const char *name, const char *string) | |
25b763ba | 177 | { |
1dad879a | 178 | write_file(am_path(state, name), "%s", string); |
25b763ba JH |
179 | } |
180 | ||
1dad879a RS |
181 | static void write_state_count(const struct am_state *state, |
182 | const char *name, int value) | |
25b763ba | 183 | { |
1dad879a | 184 | write_file(am_path(state, name), "%d", value); |
25b763ba JH |
185 | } |
186 | ||
1dad879a RS |
187 | static void write_state_bool(const struct am_state *state, |
188 | const char *name, int value) | |
25b763ba | 189 | { |
1dad879a | 190 | write_state_text(state, name, value ? "t" : "f"); |
25b763ba JH |
191 | } |
192 | ||
5d28cf78 PT |
193 | /** |
194 | * If state->quiet is false, calls fprintf(fp, fmt, ...), and appends a newline | |
195 | * at the end. | |
196 | */ | |
197 | static void say(const struct am_state *state, FILE *fp, const char *fmt, ...) | |
198 | { | |
199 | va_list ap; | |
200 | ||
201 | va_start(ap, fmt); | |
202 | if (!state->quiet) { | |
203 | vfprintf(fp, fmt, ap); | |
204 | putc('\n', fp); | |
205 | } | |
206 | va_end(ap); | |
207 | } | |
208 | ||
8c3bd9e2 PT |
209 | /** |
210 | * Returns 1 if there is an am session in progress, 0 otherwise. | |
211 | */ | |
212 | static int am_in_progress(const struct am_state *state) | |
213 | { | |
214 | struct stat st; | |
215 | ||
216 | if (lstat(state->dir, &st) < 0 || !S_ISDIR(st.st_mode)) | |
217 | return 0; | |
218 | if (lstat(am_path(state, "last"), &st) || !S_ISREG(st.st_mode)) | |
219 | return 0; | |
220 | if (lstat(am_path(state, "next"), &st) || !S_ISREG(st.st_mode)) | |
221 | return 0; | |
222 | return 1; | |
223 | } | |
224 | ||
225 | /** | |
226 | * Reads the contents of `file` in the `state` directory into `sb`. Returns the | |
227 | * number of bytes read on success, -1 if the file does not exist. If `trim` is | |
228 | * set, trailing whitespace will be removed. | |
229 | */ | |
230 | static int read_state_file(struct strbuf *sb, const struct am_state *state, | |
231 | const char *file, int trim) | |
232 | { | |
233 | strbuf_reset(sb); | |
234 | ||
235 | if (strbuf_read_file(sb, am_path(state, file), 0) >= 0) { | |
236 | if (trim) | |
237 | strbuf_trim(sb); | |
238 | ||
239 | return sb->len; | |
240 | } | |
241 | ||
242 | if (errno == ENOENT) | |
243 | return -1; | |
244 | ||
245 | die_errno(_("could not read '%s'"), am_path(state, file)); | |
246 | } | |
247 | ||
3e20dcf3 PT |
248 | /** |
249 | * Reads and parses the state directory's "author-script" file, and sets | |
250 | * state->author_name, state->author_email and state->author_date accordingly. | |
251 | * Returns 0 on success, -1 if the file could not be parsed. | |
252 | * | |
253 | * The author script is of the format: | |
254 | * | |
255 | * GIT_AUTHOR_NAME='$author_name' | |
256 | * GIT_AUTHOR_EMAIL='$author_email' | |
257 | * GIT_AUTHOR_DATE='$author_date' | |
258 | * | |
259 | * where $author_name, $author_email and $author_date are quoted. We are strict | |
260 | * with our parsing, as the file was meant to be eval'd in the old git-am.sh | |
261 | * script, and thus if the file differs from what this function expects, it is | |
262 | * better to bail out than to do something that the user does not expect. | |
263 | */ | |
a75d3513 | 264 | static int read_am_author_script(struct am_state *state) |
3e20dcf3 PT |
265 | { |
266 | const char *filename = am_path(state, "author-script"); | |
3e20dcf3 PT |
267 | |
268 | assert(!state->author_name); | |
269 | assert(!state->author_email); | |
270 | assert(!state->author_date); | |
271 | ||
bcd33ec2 PW |
272 | return read_author_script(filename, &state->author_name, |
273 | &state->author_email, &state->author_date, 1); | |
3e20dcf3 PT |
274 | } |
275 | ||
276 | /** | |
277 | * Saves state->author_name, state->author_email and state->author_date in the | |
278 | * state directory's "author-script" file. | |
279 | */ | |
280 | static void write_author_script(const struct am_state *state) | |
281 | { | |
282 | struct strbuf sb = STRBUF_INIT; | |
283 | ||
284 | strbuf_addstr(&sb, "GIT_AUTHOR_NAME="); | |
285 | sq_quote_buf(&sb, state->author_name); | |
286 | strbuf_addch(&sb, '\n'); | |
287 | ||
288 | strbuf_addstr(&sb, "GIT_AUTHOR_EMAIL="); | |
289 | sq_quote_buf(&sb, state->author_email); | |
290 | strbuf_addch(&sb, '\n'); | |
291 | ||
292 | strbuf_addstr(&sb, "GIT_AUTHOR_DATE="); | |
293 | sq_quote_buf(&sb, state->author_date); | |
294 | strbuf_addch(&sb, '\n'); | |
295 | ||
25b763ba | 296 | write_state_text(state, "author-script", sb.buf); |
3e20dcf3 PT |
297 | |
298 | strbuf_release(&sb); | |
299 | } | |
300 | ||
301 | /** | |
302 | * Reads the commit message from the state directory's "final-commit" file, | |
303 | * setting state->msg to its contents and state->msg_len to the length of its | |
304 | * contents in bytes. | |
305 | * | |
306 | * Returns 0 on success, -1 if the file does not exist. | |
307 | */ | |
308 | static int read_commit_msg(struct am_state *state) | |
309 | { | |
310 | struct strbuf sb = STRBUF_INIT; | |
311 | ||
312 | assert(!state->msg); | |
313 | ||
314 | if (read_state_file(&sb, state, "final-commit", 0) < 0) { | |
315 | strbuf_release(&sb); | |
316 | return -1; | |
317 | } | |
318 | ||
319 | state->msg = strbuf_detach(&sb, &state->msg_len); | |
320 | return 0; | |
321 | } | |
322 | ||
323 | /** | |
324 | * Saves state->msg in the state directory's "final-commit" file. | |
325 | */ | |
326 | static void write_commit_msg(const struct am_state *state) | |
327 | { | |
3e20dcf3 | 328 | const char *filename = am_path(state, "final-commit"); |
e78d5d49 | 329 | write_file_buf(filename, state->msg, state->msg_len); |
3e20dcf3 PT |
330 | } |
331 | ||
8c3bd9e2 PT |
332 | /** |
333 | * Loads state from disk. | |
334 | */ | |
335 | static void am_load(struct am_state *state) | |
336 | { | |
337 | struct strbuf sb = STRBUF_INIT; | |
338 | ||
339 | if (read_state_file(&sb, state, "next", 1) < 0) | |
033abf97 | 340 | BUG("state file 'next' does not exist"); |
8c3bd9e2 PT |
341 | state->cur = strtol(sb.buf, NULL, 10); |
342 | ||
343 | if (read_state_file(&sb, state, "last", 1) < 0) | |
033abf97 | 344 | BUG("state file 'last' does not exist"); |
8c3bd9e2 PT |
345 | state->last = strtol(sb.buf, NULL, 10); |
346 | ||
a75d3513 | 347 | if (read_am_author_script(state) < 0) |
3e20dcf3 PT |
348 | die(_("could not parse author script")); |
349 | ||
350 | read_commit_msg(state); | |
351 | ||
13b97ea5 | 352 | if (read_state_file(&sb, state, "original-commit", 1) < 0) |
8c88769b | 353 | oidclr(&state->orig_commit); |
354 | else if (get_oid_hex(sb.buf, &state->orig_commit) < 0) | |
13b97ea5 PT |
355 | die(_("could not parse %s"), am_path(state, "original-commit")); |
356 | ||
84f3de28 PT |
357 | read_state_file(&sb, state, "threeway", 1); |
358 | state->threeway = !strcmp(sb.buf, "t"); | |
359 | ||
5d28cf78 PT |
360 | read_state_file(&sb, state, "quiet", 1); |
361 | state->quiet = !strcmp(sb.buf, "t"); | |
362 | ||
eb898b83 PT |
363 | read_state_file(&sb, state, "sign", 1); |
364 | state->signoff = !strcmp(sb.buf, "t"); | |
365 | ||
ef7ee16d PT |
366 | read_state_file(&sb, state, "utf8", 1); |
367 | state->utf8 = !strcmp(sb.buf, "t"); | |
368 | ||
fd4a3f48 PW |
369 | if (file_exists(am_path(state, "rerere-autoupdate"))) { |
370 | read_state_file(&sb, state, "rerere-autoupdate", 1); | |
371 | state->allow_rerere_autoupdate = strcmp(sb.buf, "t") ? | |
372 | RERERE_NOAUTOUPDATE : RERERE_AUTOUPDATE; | |
373 | } else { | |
374 | state->allow_rerere_autoupdate = 0; | |
375 | } | |
376 | ||
4f1b6961 PT |
377 | read_state_file(&sb, state, "keep", 1); |
378 | if (!strcmp(sb.buf, "t")) | |
379 | state->keep = KEEP_TRUE; | |
380 | else if (!strcmp(sb.buf, "b")) | |
381 | state->keep = KEEP_NON_PATCH; | |
382 | else | |
383 | state->keep = KEEP_FALSE; | |
384 | ||
702cbaad PT |
385 | read_state_file(&sb, state, "messageid", 1); |
386 | state->message_id = !strcmp(sb.buf, "t"); | |
387 | ||
9b646617 PT |
388 | read_state_file(&sb, state, "scissors", 1); |
389 | if (!strcmp(sb.buf, "t")) | |
390 | state->scissors = SCISSORS_TRUE; | |
391 | else if (!strcmp(sb.buf, "f")) | |
392 | state->scissors = SCISSORS_FALSE; | |
393 | else | |
394 | state->scissors = SCISSORS_UNSET; | |
395 | ||
257e8cec PT |
396 | read_state_file(&sb, state, "apply-opt", 1); |
397 | argv_array_clear(&state->git_apply_opts); | |
398 | if (sq_dequote_to_argv_array(sb.buf, &state->git_apply_opts) < 0) | |
399 | die(_("could not parse %s"), am_path(state, "apply-opt")); | |
400 | ||
35bdcc59 PT |
401 | state->rebasing = !!file_exists(am_path(state, "rebasing")); |
402 | ||
8c3bd9e2 PT |
403 | strbuf_release(&sb); |
404 | } | |
405 | ||
406 | /** | |
407 | * Removes the am_state directory, forcefully terminating the current am | |
408 | * session. | |
409 | */ | |
410 | static void am_destroy(const struct am_state *state) | |
411 | { | |
412 | struct strbuf sb = STRBUF_INIT; | |
413 | ||
414 | strbuf_addstr(&sb, state->dir); | |
415 | remove_dir_recursively(&sb, 0); | |
416 | strbuf_release(&sb); | |
417 | } | |
418 | ||
b8803d8f PT |
419 | /** |
420 | * Runs applypatch-msg hook. Returns its exit code. | |
421 | */ | |
422 | static int run_applypatch_msg_hook(struct am_state *state) | |
423 | { | |
424 | int ret; | |
425 | ||
426 | assert(state->msg); | |
427 | ret = run_hook_le(NULL, "applypatch-msg", am_path(state, "final-commit"), NULL); | |
428 | ||
429 | if (!ret) { | |
6a83d902 | 430 | FREE_AND_NULL(state->msg); |
b8803d8f PT |
431 | if (read_commit_msg(state) < 0) |
432 | die(_("'%s' was deleted by the applypatch-msg hook"), | |
433 | am_path(state, "final-commit")); | |
434 | } | |
435 | ||
436 | return ret; | |
437 | } | |
438 | ||
13b97ea5 PT |
439 | /** |
440 | * Runs post-rewrite hook. Returns it exit code. | |
441 | */ | |
442 | static int run_post_rewrite_hook(const struct am_state *state) | |
443 | { | |
444 | struct child_process cp = CHILD_PROCESS_INIT; | |
445 | const char *hook = find_hook("post-rewrite"); | |
446 | int ret; | |
447 | ||
448 | if (!hook) | |
449 | return 0; | |
450 | ||
451 | argv_array_push(&cp.args, hook); | |
452 | argv_array_push(&cp.args, "rebase"); | |
453 | ||
454 | cp.in = xopen(am_path(state, "rewritten"), O_RDONLY); | |
455 | cp.stdout_to_stderr = 1; | |
456 | ||
457 | ret = run_command(&cp); | |
458 | ||
459 | close(cp.in); | |
460 | return ret; | |
461 | } | |
462 | ||
88b291fe PT |
463 | /** |
464 | * Reads the state directory's "rewritten" file, and copies notes from the old | |
465 | * commits listed in the file to their rewritten commits. | |
466 | * | |
467 | * Returns 0 on success, -1 on failure. | |
468 | */ | |
469 | static int copy_notes_for_rebase(const struct am_state *state) | |
470 | { | |
471 | struct notes_rewrite_cfg *c; | |
472 | struct strbuf sb = STRBUF_INIT; | |
473 | const char *invalid_line = _("Malformed input line: '%s'."); | |
474 | const char *msg = "Notes added by 'git rebase'"; | |
475 | FILE *fp; | |
476 | int ret = 0; | |
477 | ||
478 | assert(state->rebasing); | |
479 | ||
480 | c = init_copy_notes_for_rewrite("rebase"); | |
481 | if (!c) | |
482 | return 0; | |
483 | ||
484 | fp = xfopen(am_path(state, "rewritten"), "r"); | |
485 | ||
8f309aeb | 486 | while (!strbuf_getline_lf(&sb, fp)) { |
8c88769b | 487 | struct object_id from_obj, to_obj; |
88b291fe PT |
488 | |
489 | if (sb.len != GIT_SHA1_HEXSZ * 2 + 1) { | |
490 | ret = error(invalid_line, sb.buf); | |
491 | goto finish; | |
492 | } | |
493 | ||
8c88769b | 494 | if (get_oid_hex(sb.buf, &from_obj)) { |
88b291fe PT |
495 | ret = error(invalid_line, sb.buf); |
496 | goto finish; | |
497 | } | |
498 | ||
499 | if (sb.buf[GIT_SHA1_HEXSZ] != ' ') { | |
500 | ret = error(invalid_line, sb.buf); | |
501 | goto finish; | |
502 | } | |
503 | ||
8c88769b | 504 | if (get_oid_hex(sb.buf + GIT_SHA1_HEXSZ + 1, &to_obj)) { |
88b291fe PT |
505 | ret = error(invalid_line, sb.buf); |
506 | goto finish; | |
507 | } | |
508 | ||
bb7e4739 | 509 | if (copy_note_for_rewrite(c, &from_obj, &to_obj)) |
88b291fe | 510 | ret = error(_("Failed to copy notes from '%s' to '%s'"), |
8c88769b | 511 | oid_to_hex(&from_obj), oid_to_hex(&to_obj)); |
88b291fe PT |
512 | } |
513 | ||
514 | finish: | |
1d18d758 | 515 | finish_copy_notes_for_rewrite(the_repository, c, msg); |
88b291fe PT |
516 | fclose(fp); |
517 | strbuf_release(&sb); | |
518 | return ret; | |
519 | } | |
520 | ||
c29807b2 PT |
521 | /** |
522 | * Determines if the file looks like a piece of RFC2822 mail by grabbing all | |
523 | * non-indented lines and checking if they look like they begin with valid | |
524 | * header field names. | |
525 | * | |
526 | * Returns 1 if the file looks like a piece of mail, 0 otherwise. | |
527 | */ | |
528 | static int is_mail(FILE *fp) | |
529 | { | |
530 | const char *header_regex = "^[!-9;-~]+:"; | |
531 | struct strbuf sb = STRBUF_INIT; | |
532 | regex_t regex; | |
533 | int ret = 1; | |
534 | ||
535 | if (fseek(fp, 0L, SEEK_SET)) | |
536 | die_errno(_("fseek failed")); | |
537 | ||
538 | if (regcomp(®ex, header_regex, REG_NOSUB | REG_EXTENDED)) | |
539 | die("invalid pattern: %s", header_regex); | |
540 | ||
1a0c8dfd | 541 | while (!strbuf_getline(&sb, fp)) { |
c29807b2 PT |
542 | if (!sb.len) |
543 | break; /* End of header */ | |
544 | ||
545 | /* Ignore indented folded lines */ | |
546 | if (*sb.buf == '\t' || *sb.buf == ' ') | |
547 | continue; | |
548 | ||
549 | /* It's a header if it matches header_regex */ | |
550 | if (regexec(®ex, sb.buf, 0, NULL, 0)) { | |
551 | ret = 0; | |
552 | goto done; | |
553 | } | |
554 | } | |
555 | ||
556 | done: | |
557 | regfree(®ex); | |
558 | strbuf_release(&sb); | |
559 | return ret; | |
560 | } | |
561 | ||
562 | /** | |
563 | * Attempts to detect the patch_format of the patches contained in `paths`, | |
564 | * returning the PATCH_FORMAT_* enum value. Returns PATCH_FORMAT_UNKNOWN if | |
565 | * detection fails. | |
566 | */ | |
567 | static int detect_patch_format(const char **paths) | |
568 | { | |
569 | enum patch_format ret = PATCH_FORMAT_UNKNOWN; | |
570 | struct strbuf l1 = STRBUF_INIT; | |
5ae41c79 PT |
571 | struct strbuf l2 = STRBUF_INIT; |
572 | struct strbuf l3 = STRBUF_INIT; | |
c29807b2 PT |
573 | FILE *fp; |
574 | ||
575 | /* | |
576 | * We default to mbox format if input is from stdin and for directories | |
577 | */ | |
578 | if (!*paths || !strcmp(*paths, "-") || is_directory(*paths)) | |
579 | return PATCH_FORMAT_MBOX; | |
580 | ||
581 | /* | |
582 | * Otherwise, check the first few lines of the first patch, starting | |
583 | * from the first non-blank line, to try to detect its format. | |
584 | */ | |
585 | ||
586 | fp = xfopen(*paths, "r"); | |
587 | ||
1a0c8dfd | 588 | while (!strbuf_getline(&l1, fp)) { |
c29807b2 PT |
589 | if (l1.len) |
590 | break; | |
591 | } | |
592 | ||
593 | if (starts_with(l1.buf, "From ") || starts_with(l1.buf, "From: ")) { | |
594 | ret = PATCH_FORMAT_MBOX; | |
595 | goto done; | |
596 | } | |
597 | ||
336108c1 PT |
598 | if (starts_with(l1.buf, "# This series applies on GIT commit")) { |
599 | ret = PATCH_FORMAT_STGIT_SERIES; | |
600 | goto done; | |
601 | } | |
602 | ||
94cd175c PT |
603 | if (!strcmp(l1.buf, "# HG changeset patch")) { |
604 | ret = PATCH_FORMAT_HG; | |
605 | goto done; | |
606 | } | |
607 | ||
1a0c8dfd | 608 | strbuf_getline(&l2, fp); |
1a0c8dfd | 609 | strbuf_getline(&l3, fp); |
5ae41c79 PT |
610 | |
611 | /* | |
612 | * If the second line is empty and the third is a From, Author or Date | |
613 | * entry, this is likely an StGit patch. | |
614 | */ | |
615 | if (l1.len && !l2.len && | |
616 | (starts_with(l3.buf, "From:") || | |
617 | starts_with(l3.buf, "Author:") || | |
618 | starts_with(l3.buf, "Date:"))) { | |
619 | ret = PATCH_FORMAT_STGIT; | |
620 | goto done; | |
621 | } | |
622 | ||
c29807b2 PT |
623 | if (l1.len && is_mail(fp)) { |
624 | ret = PATCH_FORMAT_MBOX; | |
625 | goto done; | |
626 | } | |
627 | ||
628 | done: | |
629 | fclose(fp); | |
630 | strbuf_release(&l1); | |
542627a4 RS |
631 | strbuf_release(&l2); |
632 | strbuf_release(&l3); | |
c29807b2 PT |
633 | return ret; |
634 | } | |
635 | ||
11c2177f PT |
636 | /** |
637 | * Splits out individual email patches from `paths`, where each path is either | |
638 | * a mbox file or a Maildir. Returns 0 on success, -1 on failure. | |
639 | */ | |
d9925d1a EW |
640 | static int split_mail_mbox(struct am_state *state, const char **paths, |
641 | int keep_cr, int mboxrd) | |
11c2177f PT |
642 | { |
643 | struct child_process cp = CHILD_PROCESS_INIT; | |
644 | struct strbuf last = STRBUF_INIT; | |
1b090735 | 645 | int ret; |
11c2177f PT |
646 | |
647 | cp.git_cmd = 1; | |
648 | argv_array_push(&cp.args, "mailsplit"); | |
649 | argv_array_pushf(&cp.args, "-d%d", state->prec); | |
650 | argv_array_pushf(&cp.args, "-o%s", state->dir); | |
651 | argv_array_push(&cp.args, "-b"); | |
5d123a40 PT |
652 | if (keep_cr) |
653 | argv_array_push(&cp.args, "--keep-cr"); | |
d9925d1a EW |
654 | if (mboxrd) |
655 | argv_array_push(&cp.args, "--mboxrd"); | |
11c2177f PT |
656 | argv_array_push(&cp.args, "--"); |
657 | argv_array_pushv(&cp.args, paths); | |
658 | ||
1b090735 RS |
659 | ret = capture_command(&cp, &last, 8); |
660 | if (ret) | |
661 | goto exit; | |
11c2177f PT |
662 | |
663 | state->cur = 1; | |
664 | state->last = strtol(last.buf, NULL, 10); | |
665 | ||
1b090735 RS |
666 | exit: |
667 | strbuf_release(&last); | |
668 | return ret ? -1 : 0; | |
11c2177f PT |
669 | } |
670 | ||
5ae41c79 PT |
671 | /** |
672 | * Callback signature for split_mail_conv(). The foreign patch should be | |
673 | * read from `in`, and the converted patch (in RFC2822 mail format) should be | |
674 | * written to `out`. Return 0 on success, or -1 on failure. | |
675 | */ | |
676 | typedef int (*mail_conv_fn)(FILE *out, FILE *in, int keep_cr); | |
677 | ||
678 | /** | |
679 | * Calls `fn` for each file in `paths` to convert the foreign patch to the | |
680 | * RFC2822 mail format suitable for parsing with git-mailinfo. | |
681 | * | |
682 | * Returns 0 on success, -1 on failure. | |
683 | */ | |
684 | static int split_mail_conv(mail_conv_fn fn, struct am_state *state, | |
685 | const char **paths, int keep_cr) | |
686 | { | |
687 | static const char *stdin_only[] = {"-", NULL}; | |
688 | int i; | |
689 | ||
690 | if (!*paths) | |
691 | paths = stdin_only; | |
692 | ||
693 | for (i = 0; *paths; paths++, i++) { | |
694 | FILE *in, *out; | |
695 | const char *mail; | |
696 | int ret; | |
697 | ||
698 | if (!strcmp(*paths, "-")) | |
699 | in = stdin; | |
700 | else | |
701 | in = fopen(*paths, "r"); | |
702 | ||
703 | if (!in) | |
6e59e9c0 NTND |
704 | return error_errno(_("could not open '%s' for reading"), |
705 | *paths); | |
5ae41c79 PT |
706 | |
707 | mail = mkpath("%s/%0*d", state->dir, state->prec, i + 1); | |
708 | ||
709 | out = fopen(mail, "w"); | |
ac8ce18d RS |
710 | if (!out) { |
711 | if (in != stdin) | |
712 | fclose(in); | |
6e59e9c0 NTND |
713 | return error_errno(_("could not open '%s' for writing"), |
714 | mail); | |
ac8ce18d | 715 | } |
5ae41c79 PT |
716 | |
717 | ret = fn(out, in, keep_cr); | |
718 | ||
719 | fclose(out); | |
ac8ce18d RS |
720 | if (in != stdin) |
721 | fclose(in); | |
5ae41c79 PT |
722 | |
723 | if (ret) | |
724 | return error(_("could not parse patch '%s'"), *paths); | |
725 | } | |
726 | ||
727 | state->cur = 1; | |
728 | state->last = i; | |
729 | return 0; | |
730 | } | |
731 | ||
732 | /** | |
733 | * A split_mail_conv() callback that converts an StGit patch to an RFC2822 | |
734 | * message suitable for parsing with git-mailinfo. | |
735 | */ | |
736 | static int stgit_patch_to_mail(FILE *out, FILE *in, int keep_cr) | |
737 | { | |
738 | struct strbuf sb = STRBUF_INIT; | |
739 | int subject_printed = 0; | |
740 | ||
8f309aeb | 741 | while (!strbuf_getline_lf(&sb, in)) { |
5ae41c79 PT |
742 | const char *str; |
743 | ||
744 | if (str_isspace(sb.buf)) | |
745 | continue; | |
746 | else if (skip_prefix(sb.buf, "Author:", &str)) | |
747 | fprintf(out, "From:%s\n", str); | |
748 | else if (starts_with(sb.buf, "From") || starts_with(sb.buf, "Date")) | |
749 | fprintf(out, "%s\n", sb.buf); | |
750 | else if (!subject_printed) { | |
751 | fprintf(out, "Subject: %s\n", sb.buf); | |
752 | subject_printed = 1; | |
753 | } else { | |
754 | fprintf(out, "\n%s\n", sb.buf); | |
755 | break; | |
756 | } | |
757 | } | |
758 | ||
759 | strbuf_reset(&sb); | |
760 | while (strbuf_fread(&sb, 8192, in) > 0) { | |
761 | fwrite(sb.buf, 1, sb.len, out); | |
762 | strbuf_reset(&sb); | |
763 | } | |
764 | ||
765 | strbuf_release(&sb); | |
766 | return 0; | |
767 | } | |
768 | ||
336108c1 PT |
769 | /** |
770 | * This function only supports a single StGit series file in `paths`. | |
771 | * | |
772 | * Given an StGit series file, converts the StGit patches in the series into | |
773 | * RFC2822 messages suitable for parsing with git-mailinfo, and queues them in | |
774 | * the state directory. | |
775 | * | |
776 | * Returns 0 on success, -1 on failure. | |
777 | */ | |
778 | static int split_mail_stgit_series(struct am_state *state, const char **paths, | |
779 | int keep_cr) | |
780 | { | |
781 | const char *series_dir; | |
782 | char *series_dir_buf; | |
783 | FILE *fp; | |
784 | struct argv_array patches = ARGV_ARRAY_INIT; | |
785 | struct strbuf sb = STRBUF_INIT; | |
786 | int ret; | |
787 | ||
788 | if (!paths[0] || paths[1]) | |
789 | return error(_("Only one StGIT patch series can be applied at once")); | |
790 | ||
791 | series_dir_buf = xstrdup(*paths); | |
792 | series_dir = dirname(series_dir_buf); | |
793 | ||
794 | fp = fopen(*paths, "r"); | |
795 | if (!fp) | |
6e59e9c0 | 796 | return error_errno(_("could not open '%s' for reading"), *paths); |
336108c1 | 797 | |
8f309aeb | 798 | while (!strbuf_getline_lf(&sb, fp)) { |
336108c1 PT |
799 | if (*sb.buf == '#') |
800 | continue; /* skip comment lines */ | |
801 | ||
802 | argv_array_push(&patches, mkpath("%s/%s", series_dir, sb.buf)); | |
803 | } | |
804 | ||
805 | fclose(fp); | |
806 | strbuf_release(&sb); | |
807 | free(series_dir_buf); | |
808 | ||
809 | ret = split_mail_conv(stgit_patch_to_mail, state, patches.argv, keep_cr); | |
810 | ||
811 | argv_array_clear(&patches); | |
812 | return ret; | |
813 | } | |
814 | ||
94cd175c PT |
815 | /** |
816 | * A split_patches_conv() callback that converts a mercurial patch to a RFC2822 | |
817 | * message suitable for parsing with git-mailinfo. | |
818 | */ | |
819 | static int hg_patch_to_mail(FILE *out, FILE *in, int keep_cr) | |
820 | { | |
821 | struct strbuf sb = STRBUF_INIT; | |
b36474ff | 822 | int rc = 0; |
94cd175c | 823 | |
8f309aeb | 824 | while (!strbuf_getline_lf(&sb, in)) { |
94cd175c PT |
825 | const char *str; |
826 | ||
827 | if (skip_prefix(sb.buf, "# User ", &str)) | |
828 | fprintf(out, "From: %s\n", str); | |
829 | else if (skip_prefix(sb.buf, "# Date ", &str)) { | |
dddbad72 | 830 | timestamp_t timestamp; |
94cd175c PT |
831 | long tz, tz2; |
832 | char *end; | |
833 | ||
834 | errno = 0; | |
1aeb7e75 | 835 | timestamp = parse_timestamp(str, &end, 10); |
b36474ff RS |
836 | if (errno) { |
837 | rc = error(_("invalid timestamp")); | |
838 | goto exit; | |
839 | } | |
94cd175c | 840 | |
b36474ff RS |
841 | if (!skip_prefix(end, " ", &str)) { |
842 | rc = error(_("invalid Date line")); | |
843 | goto exit; | |
844 | } | |
94cd175c PT |
845 | |
846 | errno = 0; | |
847 | tz = strtol(str, &end, 10); | |
b36474ff RS |
848 | if (errno) { |
849 | rc = error(_("invalid timezone offset")); | |
850 | goto exit; | |
851 | } | |
94cd175c | 852 | |
b36474ff RS |
853 | if (*end) { |
854 | rc = error(_("invalid Date line")); | |
855 | goto exit; | |
856 | } | |
94cd175c PT |
857 | |
858 | /* | |
859 | * mercurial's timezone is in seconds west of UTC, | |
860 | * however git's timezone is in hours + minutes east of | |
861 | * UTC. Convert it. | |
862 | */ | |
863 | tz2 = labs(tz) / 3600 * 100 + labs(tz) % 3600 / 60; | |
864 | if (tz > 0) | |
865 | tz2 = -tz2; | |
866 | ||
867 | fprintf(out, "Date: %s\n", show_date(timestamp, tz2, DATE_MODE(RFC2822))); | |
868 | } else if (starts_with(sb.buf, "# ")) { | |
869 | continue; | |
870 | } else { | |
871 | fprintf(out, "\n%s\n", sb.buf); | |
872 | break; | |
873 | } | |
874 | } | |
875 | ||
876 | strbuf_reset(&sb); | |
877 | while (strbuf_fread(&sb, 8192, in) > 0) { | |
878 | fwrite(sb.buf, 1, sb.len, out); | |
879 | strbuf_reset(&sb); | |
880 | } | |
b36474ff | 881 | exit: |
94cd175c | 882 | strbuf_release(&sb); |
b36474ff | 883 | return rc; |
94cd175c PT |
884 | } |
885 | ||
11c2177f PT |
886 | /** |
887 | * Splits a list of files/directories into individual email patches. Each path | |
888 | * in `paths` must be a file/directory that is formatted according to | |
889 | * `patch_format`. | |
890 | * | |
891 | * Once split out, the individual email patches will be stored in the state | |
892 | * directory, with each patch's filename being its index, padded to state->prec | |
893 | * digits. | |
894 | * | |
895 | * state->cur will be set to the index of the first mail, and state->last will | |
896 | * be set to the index of the last mail. | |
897 | * | |
5d123a40 PT |
898 | * Set keep_cr to 0 to convert all lines ending with \r\n to end with \n, 1 |
899 | * to disable this behavior, -1 to use the default configured setting. | |
900 | * | |
11c2177f PT |
901 | * Returns 0 on success, -1 on failure. |
902 | */ | |
903 | static int split_mail(struct am_state *state, enum patch_format patch_format, | |
5d123a40 | 904 | const char **paths, int keep_cr) |
11c2177f | 905 | { |
5d123a40 PT |
906 | if (keep_cr < 0) { |
907 | keep_cr = 0; | |
908 | git_config_get_bool("am.keepcr", &keep_cr); | |
909 | } | |
910 | ||
11c2177f PT |
911 | switch (patch_format) { |
912 | case PATCH_FORMAT_MBOX: | |
d9925d1a | 913 | return split_mail_mbox(state, paths, keep_cr, 0); |
5ae41c79 PT |
914 | case PATCH_FORMAT_STGIT: |
915 | return split_mail_conv(stgit_patch_to_mail, state, paths, keep_cr); | |
336108c1 PT |
916 | case PATCH_FORMAT_STGIT_SERIES: |
917 | return split_mail_stgit_series(state, paths, keep_cr); | |
94cd175c PT |
918 | case PATCH_FORMAT_HG: |
919 | return split_mail_conv(hg_patch_to_mail, state, paths, keep_cr); | |
d9925d1a EW |
920 | case PATCH_FORMAT_MBOXRD: |
921 | return split_mail_mbox(state, paths, keep_cr, 1); | |
11c2177f | 922 | default: |
033abf97 | 923 | BUG("invalid patch_format"); |
11c2177f PT |
924 | } |
925 | return -1; | |
926 | } | |
927 | ||
8c3bd9e2 PT |
928 | /** |
929 | * Setup a new am session for applying patches | |
930 | */ | |
11c2177f | 931 | static void am_setup(struct am_state *state, enum patch_format patch_format, |
5d123a40 | 932 | const char **paths, int keep_cr) |
8c3bd9e2 | 933 | { |
8c88769b | 934 | struct object_id curr_head; |
4f1b6961 | 935 | const char *str; |
257e8cec | 936 | struct strbuf sb = STRBUF_INIT; |
33388a71 | 937 | |
c29807b2 PT |
938 | if (!patch_format) |
939 | patch_format = detect_patch_format(paths); | |
940 | ||
941 | if (!patch_format) { | |
942 | fprintf_ln(stderr, _("Patch format detection failed.")); | |
943 | exit(128); | |
944 | } | |
945 | ||
8c3bd9e2 PT |
946 | if (mkdir(state->dir, 0777) < 0 && errno != EEXIST) |
947 | die_errno(_("failed to create directory '%s'"), state->dir); | |
fbd7a232 | 948 | delete_ref(NULL, "REBASE_HEAD", NULL, REF_NO_DEREF); |
8c3bd9e2 | 949 | |
5d123a40 | 950 | if (split_mail(state, patch_format, paths, keep_cr) < 0) { |
11c2177f PT |
951 | am_destroy(state); |
952 | die(_("Failed to split patches.")); | |
953 | } | |
954 | ||
35bdcc59 PT |
955 | if (state->rebasing) |
956 | state->threeway = 1; | |
957 | ||
25b763ba JH |
958 | write_state_bool(state, "threeway", state->threeway); |
959 | write_state_bool(state, "quiet", state->quiet); | |
960 | write_state_bool(state, "sign", state->signoff); | |
961 | write_state_bool(state, "utf8", state->utf8); | |
ef7ee16d | 962 | |
fd4a3f48 PW |
963 | if (state->allow_rerere_autoupdate) |
964 | write_state_bool(state, "rerere-autoupdate", | |
965 | state->allow_rerere_autoupdate == RERERE_AUTOUPDATE); | |
966 | ||
4f1b6961 PT |
967 | switch (state->keep) { |
968 | case KEEP_FALSE: | |
969 | str = "f"; | |
970 | break; | |
971 | case KEEP_TRUE: | |
972 | str = "t"; | |
973 | break; | |
974 | case KEEP_NON_PATCH: | |
975 | str = "b"; | |
976 | break; | |
977 | default: | |
033abf97 | 978 | BUG("invalid value for state->keep"); |
4f1b6961 PT |
979 | } |
980 | ||
25b763ba JH |
981 | write_state_text(state, "keep", str); |
982 | write_state_bool(state, "messageid", state->message_id); | |
702cbaad | 983 | |
9b646617 PT |
984 | switch (state->scissors) { |
985 | case SCISSORS_UNSET: | |
986 | str = ""; | |
987 | break; | |
988 | case SCISSORS_FALSE: | |
989 | str = "f"; | |
990 | break; | |
991 | case SCISSORS_TRUE: | |
992 | str = "t"; | |
993 | break; | |
994 | default: | |
033abf97 | 995 | BUG("invalid value for state->scissors"); |
9b646617 | 996 | } |
25b763ba | 997 | write_state_text(state, "scissors", str); |
9b646617 | 998 | |
e35f11c2 | 999 | sq_quote_argv(&sb, state->git_apply_opts.argv); |
25b763ba | 1000 | write_state_text(state, "apply-opt", sb.buf); |
257e8cec | 1001 | |
35bdcc59 | 1002 | if (state->rebasing) |
25b763ba | 1003 | write_state_text(state, "rebasing", ""); |
35bdcc59 | 1004 | else |
25b763ba | 1005 | write_state_text(state, "applying", ""); |
35bdcc59 | 1006 | |
8c88769b | 1007 | if (!get_oid("HEAD", &curr_head)) { |
1008 | write_state_text(state, "abort-safety", oid_to_hex(&curr_head)); | |
35bdcc59 | 1009 | if (!state->rebasing) |
ae077771 | 1010 | update_ref("am", "ORIG_HEAD", &curr_head, NULL, 0, |
1011 | UPDATE_REFS_DIE_ON_ERR); | |
33388a71 | 1012 | } else { |
25b763ba | 1013 | write_state_text(state, "abort-safety", ""); |
35bdcc59 | 1014 | if (!state->rebasing) |
755b49ae | 1015 | delete_ref(NULL, "ORIG_HEAD", NULL, 0); |
33388a71 PT |
1016 | } |
1017 | ||
8c3bd9e2 PT |
1018 | /* |
1019 | * NOTE: Since the "next" and "last" files determine if an am_state | |
1020 | * session is in progress, they should be written last. | |
1021 | */ | |
1022 | ||
25b763ba JH |
1023 | write_state_count(state, "next", state->cur); |
1024 | write_state_count(state, "last", state->last); | |
257e8cec PT |
1025 | |
1026 | strbuf_release(&sb); | |
8c3bd9e2 PT |
1027 | } |
1028 | ||
1029 | /** | |
1030 | * Increments the patch pointer, and cleans am_state for the application of the | |
1031 | * next patch. | |
1032 | */ | |
1033 | static void am_next(struct am_state *state) | |
1034 | { | |
8c88769b | 1035 | struct object_id head; |
33388a71 | 1036 | |
88ce3ef6 ÆAB |
1037 | FREE_AND_NULL(state->author_name); |
1038 | FREE_AND_NULL(state->author_email); | |
1039 | FREE_AND_NULL(state->author_date); | |
1040 | FREE_AND_NULL(state->msg); | |
3e20dcf3 PT |
1041 | state->msg_len = 0; |
1042 | ||
1043 | unlink(am_path(state, "author-script")); | |
1044 | unlink(am_path(state, "final-commit")); | |
1045 | ||
8c88769b | 1046 | oidclr(&state->orig_commit); |
13b97ea5 | 1047 | unlink(am_path(state, "original-commit")); |
fbd7a232 | 1048 | delete_ref(NULL, "REBASE_HEAD", NULL, REF_NO_DEREF); |
13b97ea5 | 1049 | |
8c88769b | 1050 | if (!get_oid("HEAD", &head)) |
1051 | write_state_text(state, "abort-safety", oid_to_hex(&head)); | |
33388a71 | 1052 | else |
25b763ba | 1053 | write_state_text(state, "abort-safety", ""); |
33388a71 | 1054 | |
8c3bd9e2 | 1055 | state->cur++; |
25b763ba | 1056 | write_state_count(state, "next", state->cur); |
8c3bd9e2 PT |
1057 | } |
1058 | ||
3e20dcf3 PT |
1059 | /** |
1060 | * Returns the filename of the current patch email. | |
1061 | */ | |
1062 | static const char *msgnum(const struct am_state *state) | |
1063 | { | |
1064 | static struct strbuf sb = STRBUF_INIT; | |
1065 | ||
1066 | strbuf_reset(&sb); | |
1067 | strbuf_addf(&sb, "%0*d", state->prec, state->cur); | |
1068 | ||
1069 | return sb.buf; | |
1070 | } | |
1071 | ||
38a824fe PT |
1072 | /** |
1073 | * Refresh and write index. | |
1074 | */ | |
1075 | static void refresh_and_write_cache(void) | |
1076 | { | |
837e34eb | 1077 | struct lock_file lock_file = LOCK_INIT; |
38a824fe | 1078 | |
837e34eb | 1079 | hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR); |
38a824fe | 1080 | refresh_cache(REFRESH_QUIET); |
837e34eb | 1081 | if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) |
38a824fe PT |
1082 | die(_("unable to write index file")); |
1083 | } | |
1084 | ||
2d83109a PT |
1085 | /** |
1086 | * Dies with a user-friendly message on how to proceed after resolving the | |
1087 | * problem. This message can be overridden with state->resolvemsg. | |
1088 | */ | |
1089 | static void NORETURN die_user_resolve(const struct am_state *state) | |
1090 | { | |
1091 | if (state->resolvemsg) { | |
1092 | printf_ln("%s", state->resolvemsg); | |
1093 | } else { | |
7ff26832 | 1094 | const char *cmdline = state->interactive ? "git am -i" : "git am"; |
2d83109a PT |
1095 | |
1096 | printf_ln(_("When you have resolved this problem, run \"%s --continue\"."), cmdline); | |
1097 | printf_ln(_("If you prefer to skip this patch, run \"%s --skip\" instead."), cmdline); | |
1098 | printf_ln(_("To restore the original branch and stop patching, run \"%s --abort\"."), cmdline); | |
1099 | } | |
1100 | ||
1101 | exit(128); | |
1102 | } | |
1103 | ||
0fb3c4fc GB |
1104 | /** |
1105 | * Appends signoff to the "msg" field of the am_state. | |
1106 | */ | |
1107 | static void am_append_signoff(struct am_state *state) | |
aab84542 | 1108 | { |
0fb3c4fc | 1109 | struct strbuf sb = STRBUF_INIT; |
aab84542 | 1110 | |
0fb3c4fc | 1111 | strbuf_attach(&sb, state->msg, state->msg_len, state->msg_len); |
735285b4 | 1112 | append_signoff(&sb, 0, 0); |
b5e82359 PT |
1113 | state->msg = strbuf_detach(&sb, &state->msg_len); |
1114 | } | |
1115 | ||
3e20dcf3 PT |
1116 | /** |
1117 | * Parses `mail` using git-mailinfo, extracting its patch and authorship info. | |
1118 | * state->msg will be set to the patch message. state->author_name, | |
1119 | * state->author_email and state->author_date will be set to the patch author's | |
1120 | * name, email and date respectively. The patch body will be written to the | |
1121 | * state directory's "patch" file. | |
1122 | * | |
1123 | * Returns 1 if the patch should be skipped, 0 otherwise. | |
1124 | */ | |
1125 | static int parse_mail(struct am_state *state, const char *mail) | |
1126 | { | |
1127 | FILE *fp; | |
3e20dcf3 PT |
1128 | struct strbuf sb = STRBUF_INIT; |
1129 | struct strbuf msg = STRBUF_INIT; | |
1130 | struct strbuf author_name = STRBUF_INIT; | |
1131 | struct strbuf author_date = STRBUF_INIT; | |
1132 | struct strbuf author_email = STRBUF_INIT; | |
1133 | int ret = 0; | |
4b98bae2 | 1134 | struct mailinfo mi; |
3e20dcf3 | 1135 | |
4b98bae2 | 1136 | setup_mailinfo(&mi); |
3e20dcf3 | 1137 | |
4b98bae2 JH |
1138 | if (state->utf8) |
1139 | mi.metainfo_charset = get_commit_output_encoding(); | |
1140 | else | |
1141 | mi.metainfo_charset = NULL; | |
4f1b6961 PT |
1142 | |
1143 | switch (state->keep) { | |
1144 | case KEEP_FALSE: | |
1145 | break; | |
1146 | case KEEP_TRUE: | |
4b98bae2 | 1147 | mi.keep_subject = 1; |
4f1b6961 PT |
1148 | break; |
1149 | case KEEP_NON_PATCH: | |
4b98bae2 | 1150 | mi.keep_non_patch_brackets_in_subject = 1; |
4f1b6961 PT |
1151 | break; |
1152 | default: | |
033abf97 | 1153 | BUG("invalid value for state->keep"); |
4f1b6961 PT |
1154 | } |
1155 | ||
702cbaad | 1156 | if (state->message_id) |
4b98bae2 | 1157 | mi.add_message_id = 1; |
702cbaad | 1158 | |
9b646617 PT |
1159 | switch (state->scissors) { |
1160 | case SCISSORS_UNSET: | |
1161 | break; | |
1162 | case SCISSORS_FALSE: | |
4b98bae2 | 1163 | mi.use_scissors = 0; |
9b646617 PT |
1164 | break; |
1165 | case SCISSORS_TRUE: | |
4b98bae2 | 1166 | mi.use_scissors = 1; |
9b646617 PT |
1167 | break; |
1168 | default: | |
033abf97 | 1169 | BUG("invalid value for state->scissors"); |
9b646617 PT |
1170 | } |
1171 | ||
23a9e071 NTND |
1172 | mi.input = xfopen(mail, "r"); |
1173 | mi.output = xfopen(am_path(state, "info"), "w"); | |
4b98bae2 | 1174 | if (mailinfo(&mi, am_path(state, "msg"), am_path(state, "patch"))) |
3e20dcf3 PT |
1175 | die("could not parse patch"); |
1176 | ||
4b98bae2 JH |
1177 | fclose(mi.input); |
1178 | fclose(mi.output); | |
3e20dcf3 | 1179 | |
3aa4d81f RS |
1180 | if (mi.format_flowed) |
1181 | warning(_("Patch sent with format=flowed; " | |
1182 | "space at the end of lines might be lost.")); | |
1183 | ||
3e20dcf3 PT |
1184 | /* Extract message and author information */ |
1185 | fp = xfopen(am_path(state, "info"), "r"); | |
8f309aeb | 1186 | while (!strbuf_getline_lf(&sb, fp)) { |
3e20dcf3 PT |
1187 | const char *x; |
1188 | ||
1189 | if (skip_prefix(sb.buf, "Subject: ", &x)) { | |
1190 | if (msg.len) | |
1191 | strbuf_addch(&msg, '\n'); | |
1192 | strbuf_addstr(&msg, x); | |
1193 | } else if (skip_prefix(sb.buf, "Author: ", &x)) | |
1194 | strbuf_addstr(&author_name, x); | |
1195 | else if (skip_prefix(sb.buf, "Email: ", &x)) | |
1196 | strbuf_addstr(&author_email, x); | |
1197 | else if (skip_prefix(sb.buf, "Date: ", &x)) | |
1198 | strbuf_addstr(&author_date, x); | |
1199 | } | |
1200 | fclose(fp); | |
1201 | ||
1202 | /* Skip pine's internal folder data */ | |
1203 | if (!strcmp(author_name.buf, "Mail System Internal Data")) { | |
1204 | ret = 1; | |
1205 | goto finish; | |
1206 | } | |
1207 | ||
e3b1e3bd | 1208 | if (is_empty_or_missing_file(am_path(state, "patch"))) { |
6c486862 | 1209 | printf_ln(_("Patch is empty.")); |
2d83109a | 1210 | die_user_resolve(state); |
3e20dcf3 PT |
1211 | } |
1212 | ||
1213 | strbuf_addstr(&msg, "\n\n"); | |
4b98bae2 | 1214 | strbuf_addbuf(&msg, &mi.log_message); |
63af4a84 | 1215 | strbuf_stripspace(&msg, 0); |
3e20dcf3 PT |
1216 | |
1217 | assert(!state->author_name); | |
1218 | state->author_name = strbuf_detach(&author_name, NULL); | |
1219 | ||
1220 | assert(!state->author_email); | |
1221 | state->author_email = strbuf_detach(&author_email, NULL); | |
1222 | ||
1223 | assert(!state->author_date); | |
1224 | state->author_date = strbuf_detach(&author_date, NULL); | |
1225 | ||
1226 | assert(!state->msg); | |
1227 | state->msg = strbuf_detach(&msg, &state->msg_len); | |
1228 | ||
1229 | finish: | |
1230 | strbuf_release(&msg); | |
1231 | strbuf_release(&author_date); | |
1232 | strbuf_release(&author_email); | |
1233 | strbuf_release(&author_name); | |
1234 | strbuf_release(&sb); | |
4b98bae2 | 1235 | clear_mailinfo(&mi); |
3e20dcf3 PT |
1236 | return ret; |
1237 | } | |
1238 | ||
df2760a5 PT |
1239 | /** |
1240 | * Sets commit_id to the commit hash where the mail was generated from. | |
1241 | * Returns 0 on success, -1 on failure. | |
1242 | */ | |
8c88769b | 1243 | static int get_mail_commit_oid(struct object_id *commit_id, const char *mail) |
df2760a5 PT |
1244 | { |
1245 | struct strbuf sb = STRBUF_INIT; | |
1246 | FILE *fp = xfopen(mail, "r"); | |
1247 | const char *x; | |
5b34ba41 | 1248 | int ret = 0; |
df2760a5 | 1249 | |
5b34ba41 JS |
1250 | if (strbuf_getline_lf(&sb, fp) || |
1251 | !skip_prefix(sb.buf, "From ", &x) || | |
1252 | get_oid_hex(x, commit_id) < 0) | |
1253 | ret = -1; | |
df2760a5 PT |
1254 | |
1255 | strbuf_release(&sb); | |
1256 | fclose(fp); | |
5b34ba41 | 1257 | return ret; |
df2760a5 PT |
1258 | } |
1259 | ||
1260 | /** | |
1261 | * Sets state->msg, state->author_name, state->author_email, state->author_date | |
1262 | * to the commit's respective info. | |
1263 | */ | |
1264 | static void get_commit_info(struct am_state *state, struct commit *commit) | |
1265 | { | |
2e2bbb96 | 1266 | const char *buffer, *ident_line, *msg; |
df2760a5 | 1267 | size_t ident_len; |
721f5f1e | 1268 | struct ident_split id; |
df2760a5 PT |
1269 | |
1270 | buffer = logmsg_reencode(commit, NULL, get_commit_output_encoding()); | |
1271 | ||
1272 | ident_line = find_commit_header(buffer, "author", &ident_len); | |
1273 | ||
721f5f1e | 1274 | if (split_ident_line(&id, ident_line, ident_len) < 0) |
2e2bbb96 | 1275 | die(_("invalid ident line: %.*s"), (int)ident_len, ident_line); |
df2760a5 PT |
1276 | |
1277 | assert(!state->author_name); | |
721f5f1e | 1278 | if (id.name_begin) |
2e2bbb96 | 1279 | state->author_name = |
721f5f1e JK |
1280 | xmemdupz(id.name_begin, id.name_end - id.name_begin); |
1281 | else | |
df2760a5 PT |
1282 | state->author_name = xstrdup(""); |
1283 | ||
1284 | assert(!state->author_email); | |
721f5f1e | 1285 | if (id.mail_begin) |
2e2bbb96 | 1286 | state->author_email = |
721f5f1e JK |
1287 | xmemdupz(id.mail_begin, id.mail_end - id.mail_begin); |
1288 | else | |
df2760a5 PT |
1289 | state->author_email = xstrdup(""); |
1290 | ||
df2760a5 | 1291 | assert(!state->author_date); |
721f5f1e | 1292 | state->author_date = xstrdup(show_ident_date(&id, DATE_MODE(NORMAL))); |
df2760a5 PT |
1293 | |
1294 | assert(!state->msg); | |
1295 | msg = strstr(buffer, "\n\n"); | |
1296 | if (!msg) | |
f2fd0760 | 1297 | die(_("unable to parse commit %s"), oid_to_hex(&commit->object.oid)); |
df2760a5 PT |
1298 | state->msg = xstrdup(msg + 2); |
1299 | state->msg_len = strlen(state->msg); | |
f131db9e | 1300 | unuse_commit_buffer(commit, buffer); |
df2760a5 PT |
1301 | } |
1302 | ||
1303 | /** | |
1304 | * Writes `commit` as a patch to the state directory's "patch" file. | |
1305 | */ | |
1306 | static void write_commit_patch(const struct am_state *state, struct commit *commit) | |
1307 | { | |
1308 | struct rev_info rev_info; | |
1309 | FILE *fp; | |
1310 | ||
1311 | fp = xfopen(am_path(state, "patch"), "w"); | |
2abf3503 | 1312 | repo_init_revisions(the_repository, &rev_info, NULL); |
df2760a5 PT |
1313 | rev_info.diff = 1; |
1314 | rev_info.abbrev = 0; | |
1315 | rev_info.disable_stdin = 1; | |
1316 | rev_info.show_root_diff = 1; | |
1317 | rev_info.diffopt.output_format = DIFF_FORMAT_PATCH; | |
1318 | rev_info.no_commit_id = 1; | |
0d1e0e78 BW |
1319 | rev_info.diffopt.flags.binary = 1; |
1320 | rev_info.diffopt.flags.full_index = 1; | |
df2760a5 PT |
1321 | rev_info.diffopt.use_color = 0; |
1322 | rev_info.diffopt.file = fp; | |
1323 | rev_info.diffopt.close_file = 1; | |
1324 | add_pending_object(&rev_info, &commit->object, ""); | |
1325 | diff_setup_done(&rev_info.diffopt); | |
1326 | log_tree_commit(&rev_info, commit); | |
1327 | } | |
1328 | ||
7ff26832 PT |
1329 | /** |
1330 | * Writes the diff of the index against HEAD as a patch to the state | |
1331 | * directory's "patch" file. | |
1332 | */ | |
1333 | static void write_index_patch(const struct am_state *state) | |
1334 | { | |
1335 | struct tree *tree; | |
8c88769b | 1336 | struct object_id head; |
7ff26832 PT |
1337 | struct rev_info rev_info; |
1338 | FILE *fp; | |
1339 | ||
e82caf38 | 1340 | if (!get_oid_tree("HEAD", &head)) |
f86bcc7b | 1341 | tree = lookup_tree(the_repository, &head); |
7ff26832 | 1342 | else |
f86bcc7b SB |
1343 | tree = lookup_tree(the_repository, |
1344 | the_repository->hash_algo->empty_tree); | |
7ff26832 PT |
1345 | |
1346 | fp = xfopen(am_path(state, "patch"), "w"); | |
2abf3503 | 1347 | repo_init_revisions(the_repository, &rev_info, NULL); |
7ff26832 PT |
1348 | rev_info.diff = 1; |
1349 | rev_info.disable_stdin = 1; | |
1350 | rev_info.no_commit_id = 1; | |
1351 | rev_info.diffopt.output_format = DIFF_FORMAT_PATCH; | |
1352 | rev_info.diffopt.use_color = 0; | |
1353 | rev_info.diffopt.file = fp; | |
1354 | rev_info.diffopt.close_file = 1; | |
1355 | add_pending_object(&rev_info, &tree->object, ""); | |
1356 | diff_setup_done(&rev_info.diffopt); | |
1357 | run_diff_index(&rev_info, 1); | |
1358 | } | |
1359 | ||
df2760a5 PT |
1360 | /** |
1361 | * Like parse_mail(), but parses the mail by looking up its commit ID | |
1362 | * directly. This is used in --rebasing mode to bypass git-mailinfo's munging | |
1363 | * of patches. | |
1364 | * | |
13b97ea5 PT |
1365 | * state->orig_commit will be set to the original commit ID. |
1366 | * | |
df2760a5 PT |
1367 | * Will always return 0 as the patch should never be skipped. |
1368 | */ | |
1369 | static int parse_mail_rebase(struct am_state *state, const char *mail) | |
1370 | { | |
1371 | struct commit *commit; | |
8c88769b | 1372 | struct object_id commit_oid; |
df2760a5 | 1373 | |
8c88769b | 1374 | if (get_mail_commit_oid(&commit_oid, mail) < 0) |
df2760a5 PT |
1375 | die(_("could not parse %s"), mail); |
1376 | ||
bc83266a | 1377 | commit = lookup_commit_or_die(&commit_oid, mail); |
df2760a5 PT |
1378 | |
1379 | get_commit_info(state, commit); | |
1380 | ||
1381 | write_commit_patch(state, commit); | |
1382 | ||
8c88769b | 1383 | oidcpy(&state->orig_commit, &commit_oid); |
1384 | write_state_text(state, "original-commit", oid_to_hex(&commit_oid)); | |
fbd7a232 NTND |
1385 | update_ref("am", "REBASE_HEAD", &commit_oid, |
1386 | NULL, REF_NO_DEREF, UPDATE_REFS_DIE_ON_ERR); | |
13b97ea5 | 1387 | |
df2760a5 PT |
1388 | return 0; |
1389 | } | |
1390 | ||
38a824fe | 1391 | /** |
84f3de28 PT |
1392 | * Applies current patch with git-apply. Returns 0 on success, -1 otherwise. If |
1393 | * `index_file` is not NULL, the patch will be applied to that index. | |
38a824fe | 1394 | */ |
84f3de28 | 1395 | static int run_apply(const struct am_state *state, const char *index_file) |
38a824fe | 1396 | { |
edfac5eb CC |
1397 | struct argv_array apply_paths = ARGV_ARRAY_INIT; |
1398 | struct argv_array apply_opts = ARGV_ARRAY_INIT; | |
1399 | struct apply_state apply_state; | |
1400 | int res, opts_left; | |
edfac5eb CC |
1401 | int force_apply = 0; |
1402 | int options = 0; | |
1403 | ||
82ea77ec | 1404 | if (init_apply_state(&apply_state, the_repository, NULL)) |
033abf97 | 1405 | BUG("init_apply_state() failed"); |
edfac5eb CC |
1406 | |
1407 | argv_array_push(&apply_opts, "apply"); | |
1408 | argv_array_pushv(&apply_opts, state->git_apply_opts.argv); | |
1409 | ||
1410 | opts_left = apply_parse_options(apply_opts.argc, apply_opts.argv, | |
1411 | &apply_state, &force_apply, &options, | |
1412 | NULL); | |
1413 | ||
1414 | if (opts_left != 0) | |
1415 | die("unknown option passed through to git apply"); | |
1416 | ||
1417 | if (index_file) { | |
1418 | apply_state.index_file = index_file; | |
1419 | apply_state.cached = 1; | |
1420 | } else | |
1421 | apply_state.check_index = 1; | |
84f3de28 PT |
1422 | |
1423 | /* | |
1424 | * If we are allowed to fall back on 3-way merge, don't give false | |
1425 | * errors during the initial attempt. | |
1426 | */ | |
edfac5eb CC |
1427 | if (state->threeway && !index_file) |
1428 | apply_state.apply_verbosity = verbosity_silent; | |
84f3de28 | 1429 | |
edfac5eb | 1430 | if (check_apply_state(&apply_state, force_apply)) |
033abf97 | 1431 | BUG("check_apply_state() failed"); |
84f3de28 | 1432 | |
edfac5eb | 1433 | argv_array_push(&apply_paths, am_path(state, "patch")); |
257e8cec | 1434 | |
edfac5eb | 1435 | res = apply_all_patches(&apply_state, apply_paths.argc, apply_paths.argv, options); |
84f3de28 | 1436 | |
edfac5eb CC |
1437 | argv_array_clear(&apply_paths); |
1438 | argv_array_clear(&apply_opts); | |
1439 | clear_apply_state(&apply_state); | |
38a824fe | 1440 | |
edfac5eb CC |
1441 | if (res) |
1442 | return res; | |
38a824fe | 1443 | |
edfac5eb CC |
1444 | if (index_file) { |
1445 | /* Reload index as apply_all_patches() will have modified it. */ | |
1446 | discard_cache(); | |
1447 | read_cache_from(index_file); | |
1448 | } | |
84f3de28 PT |
1449 | |
1450 | return 0; | |
1451 | } | |
1452 | ||
1453 | /** | |
1454 | * Builds an index that contains just the blobs needed for a 3way merge. | |
1455 | */ | |
1456 | static int build_fake_ancestor(const struct am_state *state, const char *index_file) | |
1457 | { | |
1458 | struct child_process cp = CHILD_PROCESS_INIT; | |
1459 | ||
1460 | cp.git_cmd = 1; | |
1461 | argv_array_push(&cp.args, "apply"); | |
257e8cec | 1462 | argv_array_pushv(&cp.args, state->git_apply_opts.argv); |
84f3de28 PT |
1463 | argv_array_pushf(&cp.args, "--build-fake-ancestor=%s", index_file); |
1464 | argv_array_push(&cp.args, am_path(state, "patch")); | |
1465 | ||
1466 | if (run_command(&cp)) | |
1467 | return -1; | |
1468 | ||
1469 | return 0; | |
1470 | } | |
1471 | ||
1472 | /** | |
1473 | * Attempt a threeway merge, using index_path as the temporary index. | |
1474 | */ | |
1475 | static int fall_back_threeway(const struct am_state *state, const char *index_path) | |
1476 | { | |
3f338f43 JS |
1477 | struct object_id orig_tree, their_tree, our_tree; |
1478 | const struct object_id *bases[1] = { &orig_tree }; | |
1479 | struct merge_options o; | |
1480 | struct commit *result; | |
1481 | char *their_tree_name; | |
84f3de28 | 1482 | |
3f338f43 | 1483 | if (get_oid("HEAD", &our_tree) < 0) |
d41836a0 | 1484 | oidcpy(&our_tree, the_hash_algo->empty_tree); |
84f3de28 PT |
1485 | |
1486 | if (build_fake_ancestor(state, index_path)) | |
1487 | return error("could not build fake ancestor"); | |
1488 | ||
1489 | discard_cache(); | |
1490 | read_cache_from(index_path); | |
1491 | ||
fc5cb99f | 1492 | if (write_index_as_tree(&orig_tree, &the_index, index_path, 0, NULL)) |
84f3de28 PT |
1493 | return error(_("Repository lacks necessary blobs to fall back on 3-way merge.")); |
1494 | ||
1495 | say(state, stdout, _("Using index info to reconstruct a base tree...")); | |
1496 | ||
1497 | if (!state->quiet) { | |
1498 | /* | |
1499 | * List paths that needed 3-way fallback, so that the user can | |
1500 | * review them with extra care to spot mismerges. | |
1501 | */ | |
1502 | struct rev_info rev_info; | |
1503 | const char *diff_filter_str = "--diff-filter=AM"; | |
1504 | ||
2abf3503 | 1505 | repo_init_revisions(the_repository, &rev_info, NULL); |
84f3de28 | 1506 | rev_info.diffopt.output_format = DIFF_FORMAT_NAME_STATUS; |
a97262c6 | 1507 | diff_opt_parse(&rev_info.diffopt, &diff_filter_str, 1, rev_info.prefix); |
a58a1b01 | 1508 | add_pending_oid(&rev_info, "HEAD", &our_tree, 0); |
84f3de28 PT |
1509 | diff_setup_done(&rev_info.diffopt); |
1510 | run_diff_index(&rev_info, 1); | |
1511 | } | |
1512 | ||
1513 | if (run_apply(state, index_path)) | |
1514 | return error(_("Did you hand edit your patch?\n" | |
1515 | "It does not apply to blobs recorded in its index.")); | |
1516 | ||
fc5cb99f | 1517 | if (write_index_as_tree(&their_tree, &the_index, index_path, 0, NULL)) |
84f3de28 PT |
1518 | return error("could not write tree"); |
1519 | ||
1520 | say(state, stdout, _("Falling back to patching base and 3-way merge...")); | |
1521 | ||
38a824fe PT |
1522 | discard_cache(); |
1523 | read_cache(); | |
1524 | ||
84f3de28 PT |
1525 | /* |
1526 | * This is not so wrong. Depending on which base we picked, orig_tree | |
715a51bc | 1527 | * may be wildly different from ours, but their_tree has the same set of |
84f3de28 PT |
1528 | * wildly different changes in parts the patch did not touch, so |
1529 | * recursive ends up canceling them, saying that we reverted all those | |
1530 | * changes. | |
1531 | */ | |
1532 | ||
0d6caa2d | 1533 | init_merge_options(&o, the_repository); |
3f338f43 JS |
1534 | |
1535 | o.branch1 = "HEAD"; | |
1536 | their_tree_name = xstrfmt("%.*s", linelen(state->msg), state->msg); | |
1537 | o.branch2 = their_tree_name; | |
6aba117d | 1538 | o.detect_directory_renames = 0; |
3f338f43 JS |
1539 | |
1540 | if (state->quiet) | |
1541 | o.verbosity = 0; | |
1542 | ||
1543 | if (merge_recursive_generic(&o, &our_tree, &their_tree, 1, bases, &result)) { | |
35843b11 | 1544 | repo_rerere(the_repository, state->allow_rerere_autoupdate); |
3f338f43 | 1545 | free(their_tree_name); |
84f3de28 PT |
1546 | return error(_("Failed to merge in the changes.")); |
1547 | } | |
1548 | ||
3f338f43 | 1549 | free(their_tree_name); |
38a824fe PT |
1550 | return 0; |
1551 | } | |
1552 | ||
c9e8d960 PT |
1553 | /** |
1554 | * Commits the current index with state->msg as the commit message and | |
1555 | * state->author_name, state->author_email and state->author_date as the author | |
1556 | * information. | |
1557 | */ | |
1558 | static void do_commit(const struct am_state *state) | |
1559 | { | |
8c88769b | 1560 | struct object_id tree, parent, commit; |
1561 | const struct object_id *old_oid; | |
c9e8d960 PT |
1562 | struct commit_list *parents = NULL; |
1563 | const char *reflog_msg, *author; | |
1564 | struct strbuf sb = STRBUF_INIT; | |
1565 | ||
6c24c5c0 PT |
1566 | if (run_hook_le(NULL, "pre-applypatch", NULL)) |
1567 | exit(1); | |
1568 | ||
fc5cb99f | 1569 | if (write_cache_as_tree(&tree, 0, NULL)) |
c9e8d960 PT |
1570 | die(_("git write-tree failed to write a tree")); |
1571 | ||
e82caf38 | 1572 | if (!get_oid_commit("HEAD", &parent)) { |
8c88769b | 1573 | old_oid = &parent; |
c1f5eb49 SB |
1574 | commit_list_insert(lookup_commit(the_repository, &parent), |
1575 | &parents); | |
c9e8d960 | 1576 | } else { |
8c88769b | 1577 | old_oid = NULL; |
5d28cf78 | 1578 | say(state, stderr, _("applying to an empty history")); |
c9e8d960 PT |
1579 | } |
1580 | ||
1581 | author = fmt_ident(state->author_name, state->author_email, | |
f07adb62 PT |
1582 | state->ignore_date ? NULL : state->author_date, |
1583 | IDENT_STRICT); | |
c9e8d960 | 1584 | |
0cd4bcba PT |
1585 | if (state->committer_date_is_author_date) |
1586 | setenv("GIT_COMMITTER_DATE", | |
1587 | state->ignore_date ? "" : state->author_date, 1); | |
1588 | ||
5078f344 PO |
1589 | if (commit_tree(state->msg, state->msg_len, &tree, parents, &commit, |
1590 | author, state->sign_commit)) | |
c9e8d960 PT |
1591 | die(_("failed to write commit object")); |
1592 | ||
1593 | reflog_msg = getenv("GIT_REFLOG_ACTION"); | |
1594 | if (!reflog_msg) | |
1595 | reflog_msg = "am"; | |
1596 | ||
1597 | strbuf_addf(&sb, "%s: %.*s", reflog_msg, linelen(state->msg), | |
1598 | state->msg); | |
1599 | ||
ae077771 | 1600 | update_ref(sb.buf, "HEAD", &commit, old_oid, 0, |
1601 | UPDATE_REFS_DIE_ON_ERR); | |
c9e8d960 | 1602 | |
13b97ea5 PT |
1603 | if (state->rebasing) { |
1604 | FILE *fp = xfopen(am_path(state, "rewritten"), "a"); | |
1605 | ||
8c88769b | 1606 | assert(!is_null_oid(&state->orig_commit)); |
1607 | fprintf(fp, "%s ", oid_to_hex(&state->orig_commit)); | |
1608 | fprintf(fp, "%s\n", oid_to_hex(&commit)); | |
13b97ea5 PT |
1609 | fclose(fp); |
1610 | } | |
1611 | ||
7088f807 PT |
1612 | run_hook_le(NULL, "post-applypatch", NULL); |
1613 | ||
c9e8d960 PT |
1614 | strbuf_release(&sb); |
1615 | } | |
1616 | ||
240bfd2d PT |
1617 | /** |
1618 | * Validates the am_state for resuming -- the "msg" and authorship fields must | |
1619 | * be filled up. | |
1620 | */ | |
1621 | static void validate_resume_state(const struct am_state *state) | |
1622 | { | |
1623 | if (!state->msg) | |
1624 | die(_("cannot resume: %s does not exist."), | |
1625 | am_path(state, "final-commit")); | |
1626 | ||
1627 | if (!state->author_name || !state->author_email || !state->author_date) | |
1628 | die(_("cannot resume: %s does not exist."), | |
1629 | am_path(state, "author-script")); | |
1630 | } | |
1631 | ||
7ff26832 PT |
1632 | /** |
1633 | * Interactively prompt the user on whether the current patch should be | |
1634 | * applied. | |
1635 | * | |
1636 | * Returns 0 if the user chooses to apply the patch, 1 if the user chooses to | |
1637 | * skip it. | |
1638 | */ | |
1639 | static int do_interactive(struct am_state *state) | |
1640 | { | |
1641 | assert(state->msg); | |
1642 | ||
1643 | if (!isatty(0)) | |
1644 | die(_("cannot be interactive without stdin connected to a terminal.")); | |
1645 | ||
1646 | for (;;) { | |
1647 | const char *reply; | |
1648 | ||
1649 | puts(_("Commit Body is:")); | |
1650 | puts("--------------------------"); | |
1651 | printf("%s", state->msg); | |
1652 | puts("--------------------------"); | |
1653 | ||
1654 | /* | |
1655 | * TRANSLATORS: Make sure to include [y], [n], [e], [v] and [a] | |
1656 | * in your translation. The program will only accept English | |
1657 | * input at this point. | |
1658 | */ | |
1659 | reply = git_prompt(_("Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all: "), PROMPT_ECHO); | |
1660 | ||
1661 | if (!reply) { | |
1662 | continue; | |
1663 | } else if (*reply == 'y' || *reply == 'Y') { | |
1664 | return 0; | |
1665 | } else if (*reply == 'a' || *reply == 'A') { | |
1666 | state->interactive = 0; | |
1667 | return 0; | |
1668 | } else if (*reply == 'n' || *reply == 'N') { | |
1669 | return 1; | |
1670 | } else if (*reply == 'e' || *reply == 'E') { | |
1671 | struct strbuf msg = STRBUF_INIT; | |
1672 | ||
1673 | if (!launch_editor(am_path(state, "final-commit"), &msg, NULL)) { | |
1674 | free(state->msg); | |
1675 | state->msg = strbuf_detach(&msg, &state->msg_len); | |
1676 | } | |
1677 | strbuf_release(&msg); | |
1678 | } else if (*reply == 'v' || *reply == 'V') { | |
1679 | const char *pager = git_pager(1); | |
1680 | struct child_process cp = CHILD_PROCESS_INIT; | |
1681 | ||
1682 | if (!pager) | |
1683 | pager = "cat"; | |
708b8cc9 | 1684 | prepare_pager_args(&cp, pager); |
7ff26832 PT |
1685 | argv_array_push(&cp.args, am_path(state, "patch")); |
1686 | run_command(&cp); | |
1687 | } | |
1688 | } | |
1689 | } | |
1690 | ||
8c3bd9e2 PT |
1691 | /** |
1692 | * Applies all queued mail. | |
8c7b1563 PT |
1693 | * |
1694 | * If `resume` is true, we are "resuming". The "msg" and authorship fields, as | |
1695 | * well as the state directory's "patch" file is used as-is for applying the | |
1696 | * patch and committing it. | |
8c3bd9e2 | 1697 | */ |
8c7b1563 | 1698 | static void am_run(struct am_state *state, int resume) |
8c3bd9e2 | 1699 | { |
c9e8d960 | 1700 | const char *argv_gc_auto[] = {"gc", "--auto", NULL}; |
32a5fcbf | 1701 | struct strbuf sb = STRBUF_INIT; |
c9e8d960 | 1702 | |
33388a71 PT |
1703 | unlink(am_path(state, "dirtyindex")); |
1704 | ||
38a824fe PT |
1705 | refresh_and_write_cache(); |
1706 | ||
150fe065 | 1707 | if (repo_index_has_changes(the_repository, NULL, &sb)) { |
25b763ba | 1708 | write_state_bool(state, "dirtyindex", 1); |
32a5fcbf | 1709 | die(_("Dirty index: cannot apply patches (dirty: %s)"), sb.buf); |
33388a71 | 1710 | } |
32a5fcbf PT |
1711 | |
1712 | strbuf_release(&sb); | |
1713 | ||
8c3bd9e2 | 1714 | while (state->cur <= state->last) { |
3e20dcf3 | 1715 | const char *mail = am_path(state, msgnum(state)); |
84f3de28 | 1716 | int apply_status; |
3e20dcf3 | 1717 | |
4d9c7e6f JK |
1718 | reset_ident_date(); |
1719 | ||
3e20dcf3 PT |
1720 | if (!file_exists(mail)) |
1721 | goto next; | |
1722 | ||
8c7b1563 PT |
1723 | if (resume) { |
1724 | validate_resume_state(state); | |
8c7b1563 | 1725 | } else { |
df2760a5 PT |
1726 | int skip; |
1727 | ||
1728 | if (state->rebasing) | |
1729 | skip = parse_mail_rebase(state, mail); | |
1730 | else | |
1731 | skip = parse_mail(state, mail); | |
1732 | ||
1733 | if (skip) | |
8c7b1563 | 1734 | goto next; /* mail should be skipped */ |
3e20dcf3 | 1735 | |
b7cc7051 GB |
1736 | if (state->signoff) |
1737 | am_append_signoff(state); | |
1738 | ||
8c7b1563 PT |
1739 | write_author_script(state); |
1740 | write_commit_msg(state); | |
1741 | } | |
8c3bd9e2 | 1742 | |
7ff26832 PT |
1743 | if (state->interactive && do_interactive(state)) |
1744 | goto next; | |
1745 | ||
b8803d8f PT |
1746 | if (run_applypatch_msg_hook(state)) |
1747 | exit(1); | |
1748 | ||
5d28cf78 | 1749 | say(state, stdout, _("Applying: %.*s"), linelen(state->msg), state->msg); |
38a824fe | 1750 | |
84f3de28 PT |
1751 | apply_status = run_apply(state, NULL); |
1752 | ||
1753 | if (apply_status && state->threeway) { | |
1754 | struct strbuf sb = STRBUF_INIT; | |
1755 | ||
1756 | strbuf_addstr(&sb, am_path(state, "patch-merge-index")); | |
1757 | apply_status = fall_back_threeway(state, sb.buf); | |
1758 | strbuf_release(&sb); | |
1759 | ||
1760 | /* | |
1761 | * Applying the patch to an earlier tree and merging | |
1762 | * the result may have produced the same tree as ours. | |
1763 | */ | |
e1f8694f | 1764 | if (!apply_status && |
150fe065 | 1765 | !repo_index_has_changes(the_repository, NULL, NULL)) { |
84f3de28 PT |
1766 | say(state, stdout, _("No changes -- Patch already applied.")); |
1767 | goto next; | |
1768 | } | |
1769 | } | |
1770 | ||
1771 | if (apply_status) { | |
38a824fe PT |
1772 | printf_ln(_("Patch failed at %s %.*s"), msgnum(state), |
1773 | linelen(state->msg), state->msg); | |
1774 | ||
38a824fe | 1775 | if (advice_amworkdir) |
431bb23a | 1776 | advise(_("Use 'git am --show-current-patch' to see the failed patch")); |
38a824fe | 1777 | |
2d83109a | 1778 | die_user_resolve(state); |
38a824fe PT |
1779 | } |
1780 | ||
c9e8d960 | 1781 | do_commit(state); |
8c3bd9e2 | 1782 | |
3e20dcf3 | 1783 | next: |
8c3bd9e2 | 1784 | am_next(state); |
852a1710 PT |
1785 | |
1786 | if (resume) | |
1787 | am_load(state); | |
1788 | resume = 0; | |
8c3bd9e2 PT |
1789 | } |
1790 | ||
e3b1e3bd | 1791 | if (!is_empty_or_missing_file(am_path(state, "rewritten"))) { |
13b97ea5 | 1792 | assert(state->rebasing); |
88b291fe | 1793 | copy_notes_for_rebase(state); |
13b97ea5 PT |
1794 | run_post_rewrite_hook(state); |
1795 | } | |
1796 | ||
35bdcc59 PT |
1797 | /* |
1798 | * In rebasing mode, it's up to the caller to take care of | |
1799 | * housekeeping. | |
1800 | */ | |
1801 | if (!state->rebasing) { | |
1802 | am_destroy(state); | |
d0b59866 | 1803 | close_all_packs(the_repository->objects); |
35bdcc59 PT |
1804 | run_command_v_opt(argv_gc_auto, RUN_GIT_CMD); |
1805 | } | |
8c3bd9e2 | 1806 | } |
73c2779f | 1807 | |
240bfd2d PT |
1808 | /** |
1809 | * Resume the current am session after patch application failure. The user did | |
1810 | * all the hard work, and we do not have to do any patch application. Just | |
1811 | * trust and commit what the user has in the index and working tree. | |
1812 | */ | |
1813 | static void am_resolve(struct am_state *state) | |
1814 | { | |
1815 | validate_resume_state(state); | |
1816 | ||
5d28cf78 | 1817 | say(state, stdout, _("Applying: %.*s"), linelen(state->msg), state->msg); |
240bfd2d | 1818 | |
150fe065 | 1819 | if (!repo_index_has_changes(the_repository, NULL, NULL)) { |
240bfd2d PT |
1820 | printf_ln(_("No changes - did you forget to use 'git add'?\n" |
1821 | "If there is nothing left to stage, chances are that something else\n" | |
1822 | "already introduced the same changes; you might want to skip this patch.")); | |
2d83109a | 1823 | die_user_resolve(state); |
240bfd2d PT |
1824 | } |
1825 | ||
1826 | if (unmerged_cache()) { | |
1827 | printf_ln(_("You still have unmerged paths in your index.\n" | |
6c486862 JNA |
1828 | "You should 'git add' each file with resolved conflicts to mark them as such.\n" |
1829 | "You might run `git rm` on a file to accept \"deleted by them\" for it.")); | |
2d83109a | 1830 | die_user_resolve(state); |
240bfd2d PT |
1831 | } |
1832 | ||
7ff26832 PT |
1833 | if (state->interactive) { |
1834 | write_index_patch(state); | |
1835 | if (do_interactive(state)) | |
1836 | goto next; | |
1837 | } | |
1838 | ||
35843b11 | 1839 | repo_rerere(the_repository, 0); |
f1cb96d6 | 1840 | |
240bfd2d PT |
1841 | do_commit(state); |
1842 | ||
7ff26832 | 1843 | next: |
240bfd2d | 1844 | am_next(state); |
852a1710 | 1845 | am_load(state); |
8c7b1563 | 1846 | am_run(state, 0); |
240bfd2d PT |
1847 | } |
1848 | ||
9990080c PT |
1849 | /** |
1850 | * Performs a checkout fast-forward from `head` to `remote`. If `reset` is | |
1851 | * true, any unmerged entries will be discarded. Returns 0 on success, -1 on | |
1852 | * failure. | |
1853 | */ | |
1854 | static int fast_forward_to(struct tree *head, struct tree *remote, int reset) | |
1855 | { | |
837e34eb | 1856 | struct lock_file lock_file = LOCK_INIT; |
9990080c PT |
1857 | struct unpack_trees_options opts; |
1858 | struct tree_desc t[2]; | |
1859 | ||
1860 | if (parse_tree(head) || parse_tree(remote)) | |
1861 | return -1; | |
1862 | ||
837e34eb | 1863 | hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR); |
9990080c PT |
1864 | |
1865 | refresh_cache(REFRESH_QUIET); | |
1866 | ||
1867 | memset(&opts, 0, sizeof(opts)); | |
1868 | opts.head_idx = 1; | |
1869 | opts.src_index = &the_index; | |
1870 | opts.dst_index = &the_index; | |
1871 | opts.update = 1; | |
1872 | opts.merge = 1; | |
1873 | opts.reset = reset; | |
1874 | opts.fn = twoway_merge; | |
1875 | init_tree_desc(&t[0], head->buffer, head->size); | |
1876 | init_tree_desc(&t[1], remote->buffer, remote->size); | |
1877 | ||
1878 | if (unpack_trees(2, t, &opts)) { | |
837e34eb | 1879 | rollback_lock_file(&lock_file); |
9990080c PT |
1880 | return -1; |
1881 | } | |
1882 | ||
837e34eb | 1883 | if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) |
9990080c PT |
1884 | die(_("unable to write new index file")); |
1885 | ||
1886 | return 0; | |
1887 | } | |
1888 | ||
3ecc7040 PT |
1889 | /** |
1890 | * Merges a tree into the index. The index's stat info will take precedence | |
1891 | * over the merged tree's. Returns 0 on success, -1 on failure. | |
1892 | */ | |
1893 | static int merge_tree(struct tree *tree) | |
1894 | { | |
837e34eb | 1895 | struct lock_file lock_file = LOCK_INIT; |
3ecc7040 PT |
1896 | struct unpack_trees_options opts; |
1897 | struct tree_desc t[1]; | |
1898 | ||
1899 | if (parse_tree(tree)) | |
1900 | return -1; | |
1901 | ||
837e34eb | 1902 | hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR); |
3ecc7040 PT |
1903 | |
1904 | memset(&opts, 0, sizeof(opts)); | |
1905 | opts.head_idx = 1; | |
1906 | opts.src_index = &the_index; | |
1907 | opts.dst_index = &the_index; | |
1908 | opts.merge = 1; | |
1909 | opts.fn = oneway_merge; | |
1910 | init_tree_desc(&t[0], tree->buffer, tree->size); | |
1911 | ||
1912 | if (unpack_trees(1, t, &opts)) { | |
837e34eb | 1913 | rollback_lock_file(&lock_file); |
3ecc7040 PT |
1914 | return -1; |
1915 | } | |
1916 | ||
837e34eb | 1917 | if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) |
3ecc7040 PT |
1918 | die(_("unable to write new index file")); |
1919 | ||
1920 | return 0; | |
1921 | } | |
1922 | ||
9990080c PT |
1923 | /** |
1924 | * Clean the index without touching entries that are not modified between | |
1925 | * `head` and `remote`. | |
1926 | */ | |
8c88769b | 1927 | static int clean_index(const struct object_id *head, const struct object_id *remote) |
9990080c | 1928 | { |
9990080c | 1929 | struct tree *head_tree, *remote_tree, *index_tree; |
8c88769b | 1930 | struct object_id index; |
9990080c | 1931 | |
a9dbc179 | 1932 | head_tree = parse_tree_indirect(head); |
9990080c | 1933 | if (!head_tree) |
8c88769b | 1934 | return error(_("Could not parse object '%s'."), oid_to_hex(head)); |
9990080c | 1935 | |
a9dbc179 | 1936 | remote_tree = parse_tree_indirect(remote); |
9990080c | 1937 | if (!remote_tree) |
8c88769b | 1938 | return error(_("Could not parse object '%s'."), oid_to_hex(remote)); |
9990080c PT |
1939 | |
1940 | read_cache_unmerged(); | |
1941 | ||
1942 | if (fast_forward_to(head_tree, head_tree, 1)) | |
1943 | return -1; | |
1944 | ||
fc5cb99f | 1945 | if (write_cache_as_tree(&index, 0, NULL)) |
9990080c PT |
1946 | return -1; |
1947 | ||
a9dbc179 | 1948 | index_tree = parse_tree_indirect(&index); |
9990080c | 1949 | if (!index_tree) |
8c88769b | 1950 | return error(_("Could not parse object '%s'."), oid_to_hex(&index)); |
9990080c PT |
1951 | |
1952 | if (fast_forward_to(index_tree, remote_tree, 0)) | |
1953 | return -1; | |
1954 | ||
3ecc7040 | 1955 | if (merge_tree(remote_tree)) |
9990080c | 1956 | return -1; |
9990080c | 1957 | |
4edce172 | 1958 | remove_branch_state(the_repository); |
9990080c PT |
1959 | |
1960 | return 0; | |
1961 | } | |
1962 | ||
f1cb96d6 PT |
1963 | /** |
1964 | * Resets rerere's merge resolution metadata. | |
1965 | */ | |
1966 | static void am_rerere_clear(void) | |
1967 | { | |
1968 | struct string_list merge_rr = STRING_LIST_INIT_DUP; | |
55e6b354 | 1969 | rerere_clear(the_repository, &merge_rr); |
f1cb96d6 PT |
1970 | string_list_clear(&merge_rr, 1); |
1971 | } | |
1972 | ||
9990080c PT |
1973 | /** |
1974 | * Resume the current am session by skipping the current patch. | |
1975 | */ | |
1976 | static void am_skip(struct am_state *state) | |
1977 | { | |
8c88769b | 1978 | struct object_id head; |
9990080c | 1979 | |
f1cb96d6 PT |
1980 | am_rerere_clear(); |
1981 | ||
8c88769b | 1982 | if (get_oid("HEAD", &head)) |
d41836a0 | 1983 | oidcpy(&head, the_hash_algo->empty_tree); |
9990080c | 1984 | |
8c88769b | 1985 | if (clean_index(&head, &head)) |
9990080c PT |
1986 | die(_("failed to clean index")); |
1987 | ||
45339f74 EN |
1988 | if (state->rebasing) { |
1989 | FILE *fp = xfopen(am_path(state, "rewritten"), "a"); | |
1990 | ||
1991 | assert(!is_null_oid(&state->orig_commit)); | |
1992 | fprintf(fp, "%s ", oid_to_hex(&state->orig_commit)); | |
1993 | fprintf(fp, "%s\n", oid_to_hex(&head)); | |
1994 | fclose(fp); | |
1995 | } | |
1996 | ||
9990080c | 1997 | am_next(state); |
852a1710 | 1998 | am_load(state); |
9990080c PT |
1999 | am_run(state, 0); |
2000 | } | |
2001 | ||
33388a71 PT |
2002 | /** |
2003 | * Returns true if it is safe to reset HEAD to the ORIG_HEAD, false otherwise. | |
2004 | * | |
2005 | * It is not safe to reset HEAD when: | |
2006 | * 1. git-am previously failed because the index was dirty. | |
2007 | * 2. HEAD has moved since git-am previously failed. | |
2008 | */ | |
2009 | static int safe_to_abort(const struct am_state *state) | |
2010 | { | |
2011 | struct strbuf sb = STRBUF_INIT; | |
8c88769b | 2012 | struct object_id abort_safety, head; |
33388a71 PT |
2013 | |
2014 | if (file_exists(am_path(state, "dirtyindex"))) | |
2015 | return 0; | |
2016 | ||
2017 | if (read_state_file(&sb, state, "abort-safety", 1) > 0) { | |
8c88769b | 2018 | if (get_oid_hex(sb.buf, &abort_safety)) |
ccd71b2f | 2019 | die(_("could not parse %s"), am_path(state, "abort-safety")); |
33388a71 | 2020 | } else |
8c88769b | 2021 | oidclr(&abort_safety); |
28ac7aa7 | 2022 | strbuf_release(&sb); |
33388a71 | 2023 | |
8c88769b | 2024 | if (get_oid("HEAD", &head)) |
2025 | oidclr(&head); | |
33388a71 | 2026 | |
4a7e27e9 | 2027 | if (oideq(&head, &abort_safety)) |
33388a71 PT |
2028 | return 1; |
2029 | ||
1868331f | 2030 | warning(_("You seem to have moved HEAD since the last 'am' failure.\n" |
33388a71 PT |
2031 | "Not rewinding to ORIG_HEAD")); |
2032 | ||
2033 | return 0; | |
2034 | } | |
2035 | ||
2036 | /** | |
2037 | * Aborts the current am session if it is safe to do so. | |
2038 | */ | |
2039 | static void am_abort(struct am_state *state) | |
2040 | { | |
8c88769b | 2041 | struct object_id curr_head, orig_head; |
33388a71 PT |
2042 | int has_curr_head, has_orig_head; |
2043 | char *curr_branch; | |
2044 | ||
2045 | if (!safe_to_abort(state)) { | |
2046 | am_destroy(state); | |
2047 | return; | |
2048 | } | |
2049 | ||
f1cb96d6 PT |
2050 | am_rerere_clear(); |
2051 | ||
0f2dc722 | 2052 | curr_branch = resolve_refdup("HEAD", 0, &curr_head, NULL); |
57e0ef0e | 2053 | has_curr_head = curr_branch && !is_null_oid(&curr_head); |
33388a71 | 2054 | if (!has_curr_head) |
d41836a0 | 2055 | oidcpy(&curr_head, the_hash_algo->empty_tree); |
33388a71 | 2056 | |
8c88769b | 2057 | has_orig_head = !get_oid("ORIG_HEAD", &orig_head); |
33388a71 | 2058 | if (!has_orig_head) |
d41836a0 | 2059 | oidcpy(&orig_head, the_hash_algo->empty_tree); |
33388a71 | 2060 | |
8c88769b | 2061 | clean_index(&curr_head, &orig_head); |
33388a71 PT |
2062 | |
2063 | if (has_orig_head) | |
ae077771 | 2064 | update_ref("am --abort", "HEAD", &orig_head, |
2065 | has_curr_head ? &curr_head : NULL, 0, | |
2066 | UPDATE_REFS_DIE_ON_ERR); | |
33388a71 | 2067 | else if (curr_branch) |
91774afc | 2068 | delete_ref(NULL, curr_branch, NULL, REF_NO_DEREF); |
33388a71 PT |
2069 | |
2070 | free(curr_branch); | |
2071 | am_destroy(state); | |
2072 | } | |
2073 | ||
984913a2 NTND |
2074 | static int show_patch(struct am_state *state) |
2075 | { | |
2076 | struct strbuf sb = STRBUF_INIT; | |
2077 | const char *patch_path; | |
2078 | int len; | |
2079 | ||
66335298 NTND |
2080 | if (!is_null_oid(&state->orig_commit)) { |
2081 | const char *av[4] = { "show", NULL, "--", NULL }; | |
2082 | char *new_oid_str; | |
2083 | int ret; | |
2084 | ||
2085 | av[1] = new_oid_str = xstrdup(oid_to_hex(&state->orig_commit)); | |
2086 | ret = run_command_v_opt(av, RUN_GIT_CMD); | |
2087 | free(new_oid_str); | |
2088 | return ret; | |
2089 | } | |
2090 | ||
984913a2 NTND |
2091 | patch_path = am_path(state, msgnum(state)); |
2092 | len = strbuf_read_file(&sb, patch_path, 0); | |
2093 | if (len < 0) | |
2094 | die_errno(_("failed to read '%s'"), patch_path); | |
2095 | ||
2096 | setup_pager(); | |
2097 | write_in_full(1, sb.buf, sb.len); | |
2098 | strbuf_release(&sb); | |
2099 | return 0; | |
2100 | } | |
2101 | ||
11c2177f PT |
2102 | /** |
2103 | * parse_options() callback that validates and sets opt->value to the | |
2104 | * PATCH_FORMAT_* enum value corresponding to `arg`. | |
2105 | */ | |
2106 | static int parse_opt_patchformat(const struct option *opt, const char *arg, int unset) | |
2107 | { | |
2108 | int *opt_value = opt->value; | |
2109 | ||
fce56648 JK |
2110 | if (unset) |
2111 | *opt_value = PATCH_FORMAT_UNKNOWN; | |
2112 | else if (!strcmp(arg, "mbox")) | |
11c2177f | 2113 | *opt_value = PATCH_FORMAT_MBOX; |
5ae41c79 PT |
2114 | else if (!strcmp(arg, "stgit")) |
2115 | *opt_value = PATCH_FORMAT_STGIT; | |
336108c1 PT |
2116 | else if (!strcmp(arg, "stgit-series")) |
2117 | *opt_value = PATCH_FORMAT_STGIT_SERIES; | |
94cd175c PT |
2118 | else if (!strcmp(arg, "hg")) |
2119 | *opt_value = PATCH_FORMAT_HG; | |
d9925d1a EW |
2120 | else if (!strcmp(arg, "mboxrd")) |
2121 | *opt_value = PATCH_FORMAT_MBOXRD; | |
5a59a230 NTND |
2122 | /* |
2123 | * Please update $__git_patchformat in git-completion.bash | |
2124 | * when you add new options | |
2125 | */ | |
11c2177f PT |
2126 | else |
2127 | return error(_("Invalid value for --patch-format: %s"), arg); | |
2128 | return 0; | |
2129 | } | |
2130 | ||
240bfd2d PT |
2131 | enum resume_mode { |
2132 | RESUME_FALSE = 0, | |
8c7b1563 | 2133 | RESUME_APPLY, |
9990080c | 2134 | RESUME_RESOLVED, |
33388a71 | 2135 | RESUME_SKIP, |
65ed8ff3 | 2136 | RESUME_ABORT, |
9ca488c0 | 2137 | RESUME_QUIT, |
984913a2 | 2138 | RESUME_SHOW_PATCH |
240bfd2d PT |
2139 | }; |
2140 | ||
434c64df RMM |
2141 | static int git_am_config(const char *k, const char *v, void *cb) |
2142 | { | |
2143 | int status; | |
2144 | ||
2145 | status = git_gpg_config(k, v, NULL); | |
2146 | if (status) | |
2147 | return status; | |
2148 | ||
2149 | return git_default_config(k, v, NULL); | |
2150 | } | |
2151 | ||
73c2779f PT |
2152 | int cmd_am(int argc, const char **argv, const char *prefix) |
2153 | { | |
8c3bd9e2 | 2154 | struct am_state state; |
c2676cde | 2155 | int binary = -1; |
5d123a40 | 2156 | int keep_cr = -1; |
11c2177f | 2157 | int patch_format = PATCH_FORMAT_UNKNOWN; |
240bfd2d | 2158 | enum resume_mode resume = RESUME_FALSE; |
852a1710 | 2159 | int in_progress; |
984913a2 | 2160 | int ret = 0; |
8c3bd9e2 PT |
2161 | |
2162 | const char * const usage[] = { | |
d65fdc9c | 2163 | N_("git am [<options>] [(<mbox> | <Maildir>)...]"), |
d96a0313 | 2164 | N_("git am [<options>] (--continue | --skip | --abort)"), |
8c3bd9e2 PT |
2165 | NULL |
2166 | }; | |
2167 | ||
2168 | struct option options[] = { | |
7ff26832 PT |
2169 | OPT_BOOL('i', "interactive", &state.interactive, |
2170 | N_("run interactively")), | |
c2676cde | 2171 | OPT_HIDDEN_BOOL('b', "binary", &binary, |
1fb5a0ea | 2172 | N_("historical option -- no-op")), |
84f3de28 PT |
2173 | OPT_BOOL('3', "3way", &state.threeway, |
2174 | N_("allow fall back on 3way merging if needed")), | |
5d28cf78 | 2175 | OPT__QUIET(&state.quiet, N_("be quiet")), |
b5e82359 PT |
2176 | OPT_SET_INT('s', "signoff", &state.signoff, |
2177 | N_("add a Signed-off-by line to the commit message"), | |
2178 | SIGNOFF_EXPLICIT), | |
ef7ee16d PT |
2179 | OPT_BOOL('u', "utf8", &state.utf8, |
2180 | N_("recode into utf8 (default)")), | |
4f1b6961 PT |
2181 | OPT_SET_INT('k', "keep", &state.keep, |
2182 | N_("pass -k flag to git-mailinfo"), KEEP_TRUE), | |
2183 | OPT_SET_INT(0, "keep-non-patch", &state.keep, | |
2184 | N_("pass -b flag to git-mailinfo"), KEEP_NON_PATCH), | |
702cbaad PT |
2185 | OPT_BOOL('m', "message-id", &state.message_id, |
2186 | N_("pass -m flag to git-mailinfo")), | |
3e4a67b4 NTND |
2187 | OPT_SET_INT_F(0, "keep-cr", &keep_cr, |
2188 | N_("pass --keep-cr flag to git-mailsplit for mbox format"), | |
2189 | 1, PARSE_OPT_NONEG), | |
2190 | OPT_SET_INT_F(0, "no-keep-cr", &keep_cr, | |
2191 | N_("do not pass --keep-cr flag to git-mailsplit independent of am.keepcr"), | |
2192 | 0, PARSE_OPT_NONEG), | |
9b646617 PT |
2193 | OPT_BOOL('c', "scissors", &state.scissors, |
2194 | N_("strip everything before a scissors line")), | |
257e8cec PT |
2195 | OPT_PASSTHRU_ARGV(0, "whitespace", &state.git_apply_opts, N_("action"), |
2196 | N_("pass it through git-apply"), | |
2197 | 0), | |
2198 | OPT_PASSTHRU_ARGV(0, "ignore-space-change", &state.git_apply_opts, NULL, | |
2199 | N_("pass it through git-apply"), | |
2200 | PARSE_OPT_NOARG), | |
2201 | OPT_PASSTHRU_ARGV(0, "ignore-whitespace", &state.git_apply_opts, NULL, | |
2202 | N_("pass it through git-apply"), | |
2203 | PARSE_OPT_NOARG), | |
2204 | OPT_PASSTHRU_ARGV(0, "directory", &state.git_apply_opts, N_("root"), | |
2205 | N_("pass it through git-apply"), | |
2206 | 0), | |
2207 | OPT_PASSTHRU_ARGV(0, "exclude", &state.git_apply_opts, N_("path"), | |
2208 | N_("pass it through git-apply"), | |
2209 | 0), | |
2210 | OPT_PASSTHRU_ARGV(0, "include", &state.git_apply_opts, N_("path"), | |
2211 | N_("pass it through git-apply"), | |
2212 | 0), | |
2213 | OPT_PASSTHRU_ARGV('C', NULL, &state.git_apply_opts, N_("n"), | |
2214 | N_("pass it through git-apply"), | |
2215 | 0), | |
2216 | OPT_PASSTHRU_ARGV('p', NULL, &state.git_apply_opts, N_("num"), | |
2217 | N_("pass it through git-apply"), | |
2218 | 0), | |
11c2177f PT |
2219 | OPT_CALLBACK(0, "patch-format", &patch_format, N_("format"), |
2220 | N_("format the patch(es) are in"), | |
2221 | parse_opt_patchformat), | |
257e8cec PT |
2222 | OPT_PASSTHRU_ARGV(0, "reject", &state.git_apply_opts, NULL, |
2223 | N_("pass it through git-apply"), | |
2224 | PARSE_OPT_NOARG), | |
2d83109a PT |
2225 | OPT_STRING(0, "resolvemsg", &state.resolvemsg, NULL, |
2226 | N_("override error message when patch failure occurs")), | |
240bfd2d PT |
2227 | OPT_CMDMODE(0, "continue", &resume, |
2228 | N_("continue applying patches after resolving a conflict"), | |
2229 | RESUME_RESOLVED), | |
2230 | OPT_CMDMODE('r', "resolved", &resume, | |
2231 | N_("synonyms for --continue"), | |
2232 | RESUME_RESOLVED), | |
9990080c PT |
2233 | OPT_CMDMODE(0, "skip", &resume, |
2234 | N_("skip the current patch"), | |
2235 | RESUME_SKIP), | |
33388a71 PT |
2236 | OPT_CMDMODE(0, "abort", &resume, |
2237 | N_("restore the original branch and abort the patching operation."), | |
2238 | RESUME_ABORT), | |
65ed8ff3 NTND |
2239 | OPT_CMDMODE(0, "quit", &resume, |
2240 | N_("abort the patching operation but keep HEAD where it is."), | |
2241 | RESUME_QUIT), | |
984913a2 NTND |
2242 | OPT_CMDMODE(0, "show-current-patch", &resume, |
2243 | N_("show the patch being applied."), | |
2244 | RESUME_SHOW_PATCH), | |
0cd4bcba PT |
2245 | OPT_BOOL(0, "committer-date-is-author-date", |
2246 | &state.committer_date_is_author_date, | |
2247 | N_("lie about committer date")), | |
f07adb62 PT |
2248 | OPT_BOOL(0, "ignore-date", &state.ignore_date, |
2249 | N_("use current timestamp for author date")), | |
f1cb96d6 | 2250 | OPT_RERERE_AUTOUPDATE(&state.allow_rerere_autoupdate), |
7e35dacb PT |
2251 | { OPTION_STRING, 'S', "gpg-sign", &state.sign_commit, N_("key-id"), |
2252 | N_("GPG-sign commits"), | |
2253 | PARSE_OPT_OPTARG, NULL, (intptr_t) "" }, | |
35bdcc59 PT |
2254 | OPT_HIDDEN_BOOL(0, "rebasing", &state.rebasing, |
2255 | N_("(internal use for git-rebase)")), | |
8c3bd9e2 PT |
2256 | OPT_END() |
2257 | }; | |
73c2779f | 2258 | |
f3a2fffe JK |
2259 | if (argc == 2 && !strcmp(argv[1], "-h")) |
2260 | usage_with_options(usage, options); | |
2261 | ||
434c64df | 2262 | git_config(git_am_config, NULL); |
8c3bd9e2 | 2263 | |
16d2676c | 2264 | am_state_init(&state); |
8c3bd9e2 | 2265 | |
852a1710 PT |
2266 | in_progress = am_in_progress(&state); |
2267 | if (in_progress) | |
2268 | am_load(&state); | |
2269 | ||
8c3bd9e2 PT |
2270 | argc = parse_options(argc, argv, prefix, options, usage, 0); |
2271 | ||
c2676cde PT |
2272 | if (binary >= 0) |
2273 | fprintf_ln(stderr, _("The -b/--binary option has been a no-op for long time, and\n" | |
2274 | "it will be removed. Please do not use it anymore.")); | |
2275 | ||
5e4f9cff PT |
2276 | /* Ensure a valid committer ident can be constructed */ |
2277 | git_committer_info(IDENT_STRICT); | |
2278 | ||
e1ff0a32 | 2279 | if (repo_read_index_preload(the_repository, NULL, 0) < 0) |
38a824fe PT |
2280 | die(_("failed to read the index")); |
2281 | ||
852a1710 | 2282 | if (in_progress) { |
8d185503 PT |
2283 | /* |
2284 | * Catch user error to feed us patches when there is a session | |
2285 | * in progress: | |
2286 | * | |
2287 | * 1. mbox path(s) are provided on the command-line. | |
2288 | * 2. stdin is not a tty: the user is trying to feed us a patch | |
2289 | * from standard input. This is somewhat unreliable -- stdin | |
2290 | * could be /dev/null for example and the caller did not | |
2291 | * intend to feed us a patch but wanted to continue | |
2292 | * unattended. | |
2293 | */ | |
2294 | if (argc || (resume == RESUME_FALSE && !isatty(0))) | |
2295 | die(_("previous rebase directory %s still exists but mbox given."), | |
2296 | state.dir); | |
2297 | ||
8c7b1563 PT |
2298 | if (resume == RESUME_FALSE) |
2299 | resume = RESUME_APPLY; | |
b5e82359 PT |
2300 | |
2301 | if (state.signoff == SIGNOFF_EXPLICIT) | |
2302 | am_append_signoff(&state); | |
8c7b1563 | 2303 | } else { |
11c2177f PT |
2304 | struct argv_array paths = ARGV_ARRAY_INIT; |
2305 | int i; | |
2306 | ||
6d42ac29 PT |
2307 | /* |
2308 | * Handle stray state directory in the independent-run case. In | |
2309 | * the --rebasing case, it is up to the caller to take care of | |
2310 | * stray directories. | |
2311 | */ | |
2312 | if (file_exists(state.dir) && !state.rebasing) { | |
65ed8ff3 | 2313 | if (resume == RESUME_ABORT || resume == RESUME_QUIT) { |
6d42ac29 PT |
2314 | am_destroy(&state); |
2315 | am_state_release(&state); | |
2316 | return 0; | |
2317 | } | |
2318 | ||
2319 | die(_("Stray %s directory found.\n" | |
2320 | "Use \"git am --abort\" to remove it."), | |
2321 | state.dir); | |
2322 | } | |
2323 | ||
240bfd2d PT |
2324 | if (resume) |
2325 | die(_("Resolve operation not in progress, we are not resuming.")); | |
2326 | ||
11c2177f PT |
2327 | for (i = 0; i < argc; i++) { |
2328 | if (is_absolute_path(argv[i]) || !prefix) | |
2329 | argv_array_push(&paths, argv[i]); | |
2330 | else | |
2331 | argv_array_push(&paths, mkpath("%s/%s", prefix, argv[i])); | |
2332 | } | |
2333 | ||
5d123a40 | 2334 | am_setup(&state, patch_format, paths.argv, keep_cr); |
11c2177f PT |
2335 | |
2336 | argv_array_clear(&paths); | |
2337 | } | |
8c3bd9e2 | 2338 | |
240bfd2d PT |
2339 | switch (resume) { |
2340 | case RESUME_FALSE: | |
8c7b1563 PT |
2341 | am_run(&state, 0); |
2342 | break; | |
2343 | case RESUME_APPLY: | |
2344 | am_run(&state, 1); | |
240bfd2d PT |
2345 | break; |
2346 | case RESUME_RESOLVED: | |
2347 | am_resolve(&state); | |
2348 | break; | |
9990080c PT |
2349 | case RESUME_SKIP: |
2350 | am_skip(&state); | |
2351 | break; | |
33388a71 PT |
2352 | case RESUME_ABORT: |
2353 | am_abort(&state); | |
2354 | break; | |
65ed8ff3 NTND |
2355 | case RESUME_QUIT: |
2356 | am_rerere_clear(); | |
2357 | am_destroy(&state); | |
2358 | break; | |
984913a2 NTND |
2359 | case RESUME_SHOW_PATCH: |
2360 | ret = show_patch(&state); | |
2361 | break; | |
240bfd2d | 2362 | default: |
033abf97 | 2363 | BUG("invalid resume value"); |
240bfd2d | 2364 | } |
8c3bd9e2 PT |
2365 | |
2366 | am_state_release(&state); | |
2367 | ||
984913a2 | 2368 | return ret; |
73c2779f | 2369 | } |