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Commit | Line | Data |
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26ae337b | 1 | #include "cache.h" |
b2141fc1 | 2 | #include "config.h" |
697cc8ef | 3 | #include "lockfile.h" |
26ae337b | 4 | #include "sequencer.h" |
26ae337b | 5 | #include "dir.h" |
043a4492 RR |
6 | #include "object.h" |
7 | #include "commit.h" | |
8 | #include "tag.h" | |
9 | #include "run-command.h" | |
10 | #include "exec_cmd.h" | |
11 | #include "utf8.h" | |
12 | #include "cache-tree.h" | |
13 | #include "diff.h" | |
14 | #include "revision.h" | |
15 | #include "rerere.h" | |
16 | #include "merge-recursive.h" | |
17 | #include "refs.h" | |
b27cfb0d | 18 | #include "argv-array.h" |
a1c75762 | 19 | #include "quote.h" |
967dfd4d | 20 | #include "trailer.h" |
56dc3ab0 | 21 | #include "log-tree.h" |
311af526 | 22 | #include "wt-status.h" |
043a4492 RR |
23 | |
24 | #define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION" | |
26ae337b | 25 | |
5ed75e2a | 26 | const char sign_off_header[] = "Signed-off-by: "; |
cd650a4e | 27 | static const char cherry_picked_prefix[] = "(cherry picked from commit "; |
5ed75e2a | 28 | |
8a2a0f53 JS |
29 | GIT_PATH_FUNC(git_path_seq_dir, "sequencer") |
30 | ||
31 | static GIT_PATH_FUNC(git_path_todo_file, "sequencer/todo") | |
32 | static GIT_PATH_FUNC(git_path_opts_file, "sequencer/opts") | |
33 | static GIT_PATH_FUNC(git_path_head_file, "sequencer/head") | |
1e41229d | 34 | static GIT_PATH_FUNC(git_path_abort_safety_file, "sequencer/abort-safety") |
f932729c | 35 | |
84583957 JS |
36 | static GIT_PATH_FUNC(rebase_path, "rebase-merge") |
37 | /* | |
38 | * The file containing rebase commands, comments, and empty lines. | |
39 | * This file is created by "git rebase -i" then edited by the user. As | |
40 | * the lines are processed, they are removed from the front of this | |
41 | * file and written to the tail of 'done'. | |
42 | */ | |
43 | static GIT_PATH_FUNC(rebase_path_todo, "rebase-merge/git-rebase-todo") | |
1df6df0c JS |
44 | /* |
45 | * The rebase command lines that have already been processed. A line | |
46 | * is moved here when it is first handled, before any associated user | |
47 | * actions. | |
48 | */ | |
49 | static GIT_PATH_FUNC(rebase_path_done, "rebase-merge/done") | |
ef80069a JS |
50 | /* |
51 | * The file to keep track of how many commands were already processed (e.g. | |
52 | * for the prompt). | |
53 | */ | |
54 | static GIT_PATH_FUNC(rebase_path_msgnum, "rebase-merge/msgnum"); | |
55 | /* | |
56 | * The file to keep track of how many commands are to be processed in total | |
57 | * (e.g. for the prompt). | |
58 | */ | |
59 | static GIT_PATH_FUNC(rebase_path_msgtotal, "rebase-merge/end"); | |
6e98de72 JS |
60 | /* |
61 | * The commit message that is planned to be used for any changes that | |
62 | * need to be committed following a user interaction. | |
63 | */ | |
64 | static GIT_PATH_FUNC(rebase_path_message, "rebase-merge/message") | |
65 | /* | |
66 | * The file into which is accumulated the suggested commit message for | |
67 | * squash/fixup commands. When the first of a series of squash/fixups | |
68 | * is seen, the file is created and the commit message from the | |
69 | * previous commit and from the first squash/fixup commit are written | |
70 | * to it. The commit message for each subsequent squash/fixup commit | |
71 | * is appended to the file as it is processed. | |
72 | * | |
73 | * The first line of the file is of the form | |
74 | * # This is a combination of $count commits. | |
75 | * where $count is the number of commits whose messages have been | |
76 | * written to the file so far (including the initial "pick" commit). | |
77 | * Each time that a commit message is processed, this line is read and | |
78 | * updated. It is deleted just before the combined commit is made. | |
79 | */ | |
80 | static GIT_PATH_FUNC(rebase_path_squash_msg, "rebase-merge/message-squash") | |
81 | /* | |
82 | * If the current series of squash/fixups has not yet included a squash | |
83 | * command, then this file exists and holds the commit message of the | |
84 | * original "pick" commit. (If the series ends without a "squash" | |
85 | * command, then this can be used as the commit message of the combined | |
86 | * commit without opening the editor.) | |
87 | */ | |
88 | static GIT_PATH_FUNC(rebase_path_fixup_msg, "rebase-merge/message-fixup") | |
b5a67045 JS |
89 | /* |
90 | * A script to set the GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and | |
91 | * GIT_AUTHOR_DATE that will be used for the commit that is currently | |
92 | * being rebased. | |
93 | */ | |
94 | static GIT_PATH_FUNC(rebase_path_author_script, "rebase-merge/author-script") | |
56dc3ab0 JS |
95 | /* |
96 | * When an "edit" rebase command is being processed, the SHA1 of the | |
97 | * commit to be edited is recorded in this file. When "git rebase | |
98 | * --continue" is executed, if there are any staged changes then they | |
99 | * will be amended to the HEAD commit, but only provided the HEAD | |
100 | * commit is still the commit to be edited. When any other rebase | |
101 | * command is processed, this file is deleted. | |
102 | */ | |
103 | static GIT_PATH_FUNC(rebase_path_amend, "rebase-merge/amend") | |
104 | /* | |
105 | * When we stop at a given patch via the "edit" command, this file contains | |
106 | * the abbreviated commit name of the corresponding patch. | |
107 | */ | |
108 | static GIT_PATH_FUNC(rebase_path_stopped_sha, "rebase-merge/stopped-sha") | |
25cb8df9 JS |
109 | /* |
110 | * For the post-rewrite hook, we make a list of rewritten commits and | |
111 | * their new sha1s. The rewritten-pending list keeps the sha1s of | |
112 | * commits that have been processed, but not committed yet, | |
113 | * e.g. because they are waiting for a 'squash' command. | |
114 | */ | |
115 | static GIT_PATH_FUNC(rebase_path_rewritten_list, "rebase-merge/rewritten-list") | |
116 | static GIT_PATH_FUNC(rebase_path_rewritten_pending, | |
117 | "rebase-merge/rewritten-pending") | |
a1c75762 JS |
118 | /* |
119 | * The following files are written by git-rebase just after parsing the | |
120 | * command-line (and are only consumed, not modified, by the sequencer). | |
121 | */ | |
122 | static GIT_PATH_FUNC(rebase_path_gpg_sign_opt, "rebase-merge/gpg_sign_opt") | |
556907f1 JS |
123 | static GIT_PATH_FUNC(rebase_path_orig_head, "rebase-merge/orig-head") |
124 | static GIT_PATH_FUNC(rebase_path_verbose, "rebase-merge/verbose") | |
4b83ce9f JS |
125 | static GIT_PATH_FUNC(rebase_path_head_name, "rebase-merge/head-name") |
126 | static GIT_PATH_FUNC(rebase_path_onto, "rebase-merge/onto") | |
796c7972 | 127 | static GIT_PATH_FUNC(rebase_path_autostash, "rebase-merge/autostash") |
ca6c6b45 JS |
128 | static GIT_PATH_FUNC(rebase_path_strategy, "rebase-merge/strategy") |
129 | static GIT_PATH_FUNC(rebase_path_strategy_opts, "rebase-merge/strategy_opts") | |
9b6d7a62 | 130 | static GIT_PATH_FUNC(rebase_path_allow_rerere_autoupdate, "rebase-merge/allow_rerere_autoupdate") |
b5a67045 | 131 | |
b5a67045 JS |
132 | static inline int is_rebase_i(const struct replay_opts *opts) |
133 | { | |
84583957 | 134 | return opts->action == REPLAY_INTERACTIVE_REBASE; |
b5a67045 JS |
135 | } |
136 | ||
285abf56 JS |
137 | static const char *get_dir(const struct replay_opts *opts) |
138 | { | |
84583957 JS |
139 | if (is_rebase_i(opts)) |
140 | return rebase_path(); | |
285abf56 JS |
141 | return git_path_seq_dir(); |
142 | } | |
143 | ||
c0246501 JS |
144 | static const char *get_todo_path(const struct replay_opts *opts) |
145 | { | |
84583957 JS |
146 | if (is_rebase_i(opts)) |
147 | return rebase_path_todo(); | |
c0246501 JS |
148 | return git_path_todo_file(); |
149 | } | |
150 | ||
bab4d109 BC |
151 | /* |
152 | * Returns 0 for non-conforming footer | |
153 | * Returns 1 for conforming footer | |
154 | * Returns 2 when sob exists within conforming footer | |
155 | * Returns 3 when sob exists within conforming footer as last entry | |
156 | */ | |
157 | static int has_conforming_footer(struct strbuf *sb, struct strbuf *sob, | |
158 | int ignore_footer) | |
b971e04f | 159 | { |
967dfd4d JT |
160 | struct trailer_info info; |
161 | int i; | |
162 | int found_sob = 0, found_sob_last = 0; | |
b971e04f | 163 | |
967dfd4d | 164 | trailer_info_get(&info, sb->buf); |
b971e04f | 165 | |
967dfd4d | 166 | if (info.trailer_start == info.trailer_end) |
b971e04f BC |
167 | return 0; |
168 | ||
967dfd4d JT |
169 | for (i = 0; i < info.trailer_nr; i++) |
170 | if (sob && !strncmp(info.trailers[i], sob->buf, sob->len)) { | |
171 | found_sob = 1; | |
172 | if (i == info.trailer_nr - 1) | |
173 | found_sob_last = 1; | |
174 | } | |
b971e04f | 175 | |
967dfd4d | 176 | trailer_info_release(&info); |
bab4d109 | 177 | |
967dfd4d | 178 | if (found_sob_last) |
bab4d109 BC |
179 | return 3; |
180 | if (found_sob) | |
181 | return 2; | |
b971e04f BC |
182 | return 1; |
183 | } | |
5ed75e2a | 184 | |
a1c75762 JS |
185 | static const char *gpg_sign_opt_quoted(struct replay_opts *opts) |
186 | { | |
187 | static struct strbuf buf = STRBUF_INIT; | |
188 | ||
189 | strbuf_reset(&buf); | |
190 | if (opts->gpg_sign) | |
191 | sq_quotef(&buf, "-S%s", opts->gpg_sign); | |
192 | return buf.buf; | |
193 | } | |
194 | ||
2863584f | 195 | int sequencer_remove_state(struct replay_opts *opts) |
26ae337b | 196 | { |
285abf56 | 197 | struct strbuf dir = STRBUF_INIT; |
03a4e260 JS |
198 | int i; |
199 | ||
200 | free(opts->gpg_sign); | |
201 | free(opts->strategy); | |
202 | for (i = 0; i < opts->xopts_nr; i++) | |
203 | free(opts->xopts[i]); | |
204 | free(opts->xopts); | |
26ae337b | 205 | |
72d4a9a7 | 206 | strbuf_addstr(&dir, get_dir(opts)); |
285abf56 JS |
207 | remove_dir_recursively(&dir, 0); |
208 | strbuf_release(&dir); | |
2863584f JS |
209 | |
210 | return 0; | |
26ae337b | 211 | } |
043a4492 RR |
212 | |
213 | static const char *action_name(const struct replay_opts *opts) | |
214 | { | |
84583957 JS |
215 | switch (opts->action) { |
216 | case REPLAY_REVERT: | |
217 | return N_("revert"); | |
218 | case REPLAY_PICK: | |
219 | return N_("cherry-pick"); | |
220 | case REPLAY_INTERACTIVE_REBASE: | |
221 | return N_("rebase -i"); | |
222 | } | |
223 | die(_("Unknown action: %d"), opts->action); | |
043a4492 RR |
224 | } |
225 | ||
043a4492 RR |
226 | struct commit_message { |
227 | char *parent_label; | |
7b35eaf8 JK |
228 | char *label; |
229 | char *subject; | |
043a4492 RR |
230 | const char *message; |
231 | }; | |
232 | ||
39755964 JS |
233 | static const char *short_commit_name(struct commit *commit) |
234 | { | |
235 | return find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV); | |
236 | } | |
237 | ||
043a4492 RR |
238 | static int get_message(struct commit *commit, struct commit_message *out) |
239 | { | |
043a4492 | 240 | const char *abbrev, *subject; |
7b35eaf8 | 241 | int subject_len; |
043a4492 | 242 | |
7b35eaf8 | 243 | out->message = logmsg_reencode(commit, NULL, get_commit_output_encoding()); |
39755964 | 244 | abbrev = short_commit_name(commit); |
043a4492 RR |
245 | |
246 | subject_len = find_commit_subject(out->message, &subject); | |
247 | ||
7b35eaf8 JK |
248 | out->subject = xmemdupz(subject, subject_len); |
249 | out->label = xstrfmt("%s... %s", abbrev, out->subject); | |
250 | out->parent_label = xstrfmt("parent of %s", out->label); | |
251 | ||
043a4492 RR |
252 | return 0; |
253 | } | |
254 | ||
d74a4e57 | 255 | static void free_message(struct commit *commit, struct commit_message *msg) |
043a4492 RR |
256 | { |
257 | free(msg->parent_label); | |
7b35eaf8 JK |
258 | free(msg->label); |
259 | free(msg->subject); | |
b66103c3 | 260 | unuse_commit_buffer(commit, msg->message); |
043a4492 RR |
261 | } |
262 | ||
ed727b19 | 263 | static void print_advice(int show_hint, struct replay_opts *opts) |
043a4492 RR |
264 | { |
265 | char *msg = getenv("GIT_CHERRY_PICK_HELP"); | |
266 | ||
267 | if (msg) { | |
268 | fprintf(stderr, "%s\n", msg); | |
269 | /* | |
41ccfdd9 | 270 | * A conflict has occurred but the porcelain |
043a4492 RR |
271 | * (typically rebase --interactive) wants to take care |
272 | * of the commit itself so remove CHERRY_PICK_HEAD | |
273 | */ | |
f932729c | 274 | unlink(git_path_cherry_pick_head()); |
043a4492 RR |
275 | return; |
276 | } | |
277 | ||
ed727b19 PH |
278 | if (show_hint) { |
279 | if (opts->no_commit) | |
280 | advise(_("after resolving the conflicts, mark the corrected paths\n" | |
281 | "with 'git add <paths>' or 'git rm <paths>'")); | |
282 | else | |
283 | advise(_("after resolving the conflicts, mark the corrected paths\n" | |
284 | "with 'git add <paths>' or 'git rm <paths>'\n" | |
285 | "and commit the result with 'git commit'")); | |
286 | } | |
043a4492 RR |
287 | } |
288 | ||
f56fffef JS |
289 | static int write_message(const void *buf, size_t len, const char *filename, |
290 | int append_eol) | |
043a4492 RR |
291 | { |
292 | static struct lock_file msg_file; | |
293 | ||
4ef3d8f0 JS |
294 | int msg_fd = hold_lock_file_for_update(&msg_file, filename, 0); |
295 | if (msg_fd < 0) | |
93b3df6f | 296 | return error_errno(_("could not lock '%s'"), filename); |
75871495 | 297 | if (write_in_full(msg_fd, buf, len) < 0) { |
4f66c837 | 298 | rollback_lock_file(&msg_file); |
93b3df6f | 299 | return error_errno(_("could not write to '%s'"), filename); |
4f66c837 | 300 | } |
f56fffef JS |
301 | if (append_eol && write(msg_fd, "\n", 1) < 0) { |
302 | rollback_lock_file(&msg_file); | |
35871806 | 303 | return error_errno(_("could not write eol to '%s'"), filename); |
f56fffef | 304 | } |
4f66c837 JS |
305 | if (commit_lock_file(&msg_file) < 0) { |
306 | rollback_lock_file(&msg_file); | |
93b3df6f | 307 | return error(_("failed to finalize '%s'."), filename); |
4f66c837 | 308 | } |
4ef3d8f0 JS |
309 | |
310 | return 0; | |
043a4492 RR |
311 | } |
312 | ||
1dfc84e9 JS |
313 | /* |
314 | * Reads a file that was presumably written by a shell script, i.e. with an | |
315 | * end-of-line marker that needs to be stripped. | |
316 | * | |
317 | * Note that only the last end-of-line marker is stripped, consistent with the | |
318 | * behavior of "$(cat path)" in a shell script. | |
319 | * | |
320 | * Returns 1 if the file was read, 0 if it could not be read or does not exist. | |
321 | */ | |
322 | static int read_oneliner(struct strbuf *buf, | |
323 | const char *path, int skip_if_empty) | |
324 | { | |
325 | int orig_len = buf->len; | |
326 | ||
327 | if (!file_exists(path)) | |
328 | return 0; | |
329 | ||
330 | if (strbuf_read_file(buf, path, 0) < 0) { | |
331 | warning_errno(_("could not read '%s'"), path); | |
332 | return 0; | |
333 | } | |
334 | ||
335 | if (buf->len > orig_len && buf->buf[buf->len - 1] == '\n') { | |
336 | if (--buf->len > orig_len && buf->buf[buf->len - 1] == '\r') | |
337 | --buf->len; | |
338 | buf->buf[buf->len] = '\0'; | |
339 | } | |
340 | ||
341 | if (skip_if_empty && buf->len == orig_len) | |
342 | return 0; | |
343 | ||
344 | return 1; | |
345 | } | |
346 | ||
043a4492 RR |
347 | static struct tree *empty_tree(void) |
348 | { | |
740ee055 | 349 | return lookup_tree(&empty_tree_oid); |
043a4492 RR |
350 | } |
351 | ||
352 | static int error_dirty_index(struct replay_opts *opts) | |
353 | { | |
354 | if (read_cache_unmerged()) | |
c28cbc5e | 355 | return error_resolve_conflict(_(action_name(opts))); |
043a4492 | 356 | |
93b3df6f | 357 | error(_("your local changes would be overwritten by %s."), |
c28cbc5e | 358 | _(action_name(opts))); |
043a4492 RR |
359 | |
360 | if (advice_commit_before_merge) | |
93b3df6f | 361 | advise(_("commit your changes or stash them to proceed.")); |
043a4492 RR |
362 | return -1; |
363 | } | |
364 | ||
1e41229d SB |
365 | static void update_abort_safety_file(void) |
366 | { | |
367 | struct object_id head; | |
368 | ||
369 | /* Do nothing on a single-pick */ | |
370 | if (!file_exists(git_path_seq_dir())) | |
371 | return; | |
372 | ||
373 | if (!get_oid("HEAD", &head)) | |
374 | write_file(git_path_abort_safety_file(), "%s", oid_to_hex(&head)); | |
375 | else | |
376 | write_file(git_path_abort_safety_file(), "%s", ""); | |
377 | } | |
378 | ||
ace976b2 | 379 | static int fast_forward_to(const struct object_id *to, const struct object_id *from, |
eb4be1cb | 380 | int unborn, struct replay_opts *opts) |
043a4492 | 381 | { |
d668d16c | 382 | struct ref_transaction *transaction; |
eb4be1cb | 383 | struct strbuf sb = STRBUF_INIT; |
d668d16c | 384 | struct strbuf err = STRBUF_INIT; |
043a4492 RR |
385 | |
386 | read_cache(); | |
db699a8a | 387 | if (checkout_fast_forward(from, to, 1)) |
0e408fc3 | 388 | return -1; /* the callee should have complained already */ |
651ab9f5 | 389 | |
c28cbc5e | 390 | strbuf_addf(&sb, _("%s: fast-forward"), _(action_name(opts))); |
d668d16c RS |
391 | |
392 | transaction = ref_transaction_begin(&err); | |
393 | if (!transaction || | |
394 | ref_transaction_update(transaction, "HEAD", | |
ace976b2 | 395 | to->hash, unborn ? null_sha1 : from->hash, |
1d147bdf | 396 | 0, sb.buf, &err) || |
db7516ab | 397 | ref_transaction_commit(transaction, &err)) { |
d668d16c RS |
398 | ref_transaction_free(transaction); |
399 | error("%s", err.buf); | |
400 | strbuf_release(&sb); | |
401 | strbuf_release(&err); | |
402 | return -1; | |
403 | } | |
651ab9f5 | 404 | |
eb4be1cb | 405 | strbuf_release(&sb); |
d668d16c RS |
406 | strbuf_release(&err); |
407 | ref_transaction_free(transaction); | |
1e41229d | 408 | update_abort_safety_file(); |
d668d16c | 409 | return 0; |
043a4492 RR |
410 | } |
411 | ||
75c961b7 JH |
412 | void append_conflicts_hint(struct strbuf *msgbuf) |
413 | { | |
414 | int i; | |
415 | ||
261f315b JH |
416 | strbuf_addch(msgbuf, '\n'); |
417 | strbuf_commented_addf(msgbuf, "Conflicts:\n"); | |
75c961b7 JH |
418 | for (i = 0; i < active_nr;) { |
419 | const struct cache_entry *ce = active_cache[i++]; | |
420 | if (ce_stage(ce)) { | |
261f315b | 421 | strbuf_commented_addf(msgbuf, "\t%s\n", ce->name); |
75c961b7 JH |
422 | while (i < active_nr && !strcmp(ce->name, |
423 | active_cache[i]->name)) | |
424 | i++; | |
425 | } | |
426 | } | |
427 | } | |
428 | ||
043a4492 RR |
429 | static int do_recursive_merge(struct commit *base, struct commit *next, |
430 | const char *base_label, const char *next_label, | |
48be4c62 | 431 | struct object_id *head, struct strbuf *msgbuf, |
043a4492 RR |
432 | struct replay_opts *opts) |
433 | { | |
434 | struct merge_options o; | |
435 | struct tree *result, *next_tree, *base_tree, *head_tree; | |
03b86647 | 436 | int clean; |
03a4e260 | 437 | char **xopt; |
043a4492 RR |
438 | static struct lock_file index_lock; |
439 | ||
b3e83cc7 | 440 | hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR); |
043a4492 RR |
441 | |
442 | read_cache(); | |
443 | ||
444 | init_merge_options(&o); | |
445 | o.ancestor = base ? base_label : "(empty tree)"; | |
446 | o.branch1 = "HEAD"; | |
447 | o.branch2 = next ? next_label : "(empty tree)"; | |
62fdb652 JS |
448 | if (is_rebase_i(opts)) |
449 | o.buffer_output = 2; | |
043a4492 RR |
450 | |
451 | head_tree = parse_tree_indirect(head); | |
452 | next_tree = next ? next->tree : empty_tree(); | |
453 | base_tree = base ? base->tree : empty_tree(); | |
454 | ||
455 | for (xopt = opts->xopts; xopt != opts->xopts + opts->xopts_nr; xopt++) | |
456 | parse_merge_opt(&o, *xopt); | |
457 | ||
458 | clean = merge_trees(&o, | |
459 | head_tree, | |
460 | next_tree, base_tree, &result); | |
62fdb652 JS |
461 | if (is_rebase_i(opts) && clean <= 0) |
462 | fputs(o.obuf.buf, stdout); | |
548009c0 | 463 | strbuf_release(&o.obuf); |
f241ff0d JS |
464 | if (clean < 0) |
465 | return clean; | |
043a4492 RR |
466 | |
467 | if (active_cache_changed && | |
03b86647 | 468 | write_locked_index(&the_index, &index_lock, COMMIT_LOCK)) |
66f5f6dc ÆAB |
469 | /* |
470 | * TRANSLATORS: %s will be "revert", "cherry-pick" or | |
84583957 JS |
471 | * "rebase -i". |
472 | */ | |
c527b55e | 473 | return error(_("%s: Unable to write new index file"), |
c28cbc5e | 474 | _(action_name(opts))); |
043a4492 RR |
475 | rollback_lock_file(&index_lock); |
476 | ||
5ed75e2a | 477 | if (opts->signoff) |
bab4d109 | 478 | append_signoff(msgbuf, 0, 0); |
5ed75e2a | 479 | |
75c961b7 JH |
480 | if (!clean) |
481 | append_conflicts_hint(msgbuf); | |
043a4492 RR |
482 | |
483 | return !clean; | |
484 | } | |
485 | ||
b27cfb0d NH |
486 | static int is_index_unchanged(void) |
487 | { | |
33d66df3 | 488 | struct object_id head_oid; |
b27cfb0d NH |
489 | struct commit *head_commit; |
490 | ||
33d66df3 | 491 | if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, head_oid.hash, NULL)) |
93b3df6f | 492 | return error(_("could not resolve HEAD commit\n")); |
b27cfb0d | 493 | |
bc83266a | 494 | head_commit = lookup_commit(&head_oid); |
4b580061 NH |
495 | |
496 | /* | |
497 | * If head_commit is NULL, check_commit, called from | |
498 | * lookup_commit, would have indicated that head_commit is not | |
499 | * a commit object already. parse_commit() will return failure | |
500 | * without further complaints in such a case. Otherwise, if | |
501 | * the commit is invalid, parse_commit() will complain. So | |
502 | * there is nothing for us to say here. Just return failure. | |
503 | */ | |
504 | if (parse_commit(head_commit)) | |
505 | return -1; | |
b27cfb0d NH |
506 | |
507 | if (!active_cache_tree) | |
508 | active_cache_tree = cache_tree(); | |
509 | ||
510 | if (!cache_tree_fully_valid(active_cache_tree)) | |
d0cfc3e8 | 511 | if (cache_tree_update(&the_index, 0)) |
93b3df6f | 512 | return error(_("unable to update cache tree\n")); |
b27cfb0d | 513 | |
e0a92804 | 514 | return !oidcmp(&active_cache_tree->oid, |
515 | &head_commit->tree->object.oid); | |
b27cfb0d NH |
516 | } |
517 | ||
0473f28a JS |
518 | static int write_author_script(const char *message) |
519 | { | |
520 | struct strbuf buf = STRBUF_INIT; | |
521 | const char *eol; | |
522 | int res; | |
523 | ||
524 | for (;;) | |
525 | if (!*message || starts_with(message, "\n")) { | |
526 | missing_author: | |
527 | /* Missing 'author' line? */ | |
528 | unlink(rebase_path_author_script()); | |
529 | return 0; | |
530 | } else if (skip_prefix(message, "author ", &message)) | |
531 | break; | |
532 | else if ((eol = strchr(message, '\n'))) | |
533 | message = eol + 1; | |
534 | else | |
535 | goto missing_author; | |
536 | ||
537 | strbuf_addstr(&buf, "GIT_AUTHOR_NAME='"); | |
538 | while (*message && *message != '\n' && *message != '\r') | |
539 | if (skip_prefix(message, " <", &message)) | |
540 | break; | |
541 | else if (*message != '\'') | |
542 | strbuf_addch(&buf, *(message++)); | |
543 | else | |
544 | strbuf_addf(&buf, "'\\\\%c'", *(message++)); | |
545 | strbuf_addstr(&buf, "'\nGIT_AUTHOR_EMAIL='"); | |
546 | while (*message && *message != '\n' && *message != '\r') | |
547 | if (skip_prefix(message, "> ", &message)) | |
548 | break; | |
549 | else if (*message != '\'') | |
550 | strbuf_addch(&buf, *(message++)); | |
551 | else | |
552 | strbuf_addf(&buf, "'\\\\%c'", *(message++)); | |
553 | strbuf_addstr(&buf, "'\nGIT_AUTHOR_DATE='@"); | |
554 | while (*message && *message != '\n' && *message != '\r') | |
555 | if (*message != '\'') | |
556 | strbuf_addch(&buf, *(message++)); | |
557 | else | |
558 | strbuf_addf(&buf, "'\\\\%c'", *(message++)); | |
559 | res = write_message(buf.buf, buf.len, rebase_path_author_script(), 1); | |
560 | strbuf_release(&buf); | |
561 | return res; | |
562 | } | |
563 | ||
b5a67045 | 564 | /* |
a2a20b0d JS |
565 | * Read a list of environment variable assignments (such as the author-script |
566 | * file) into an environment block. Returns -1 on error, 0 otherwise. | |
b5a67045 | 567 | */ |
a2a20b0d | 568 | static int read_env_script(struct argv_array *env) |
b5a67045 JS |
569 | { |
570 | struct strbuf script = STRBUF_INIT; | |
571 | int i, count = 0; | |
a2a20b0d | 572 | char *p, *p2; |
b5a67045 JS |
573 | |
574 | if (strbuf_read_file(&script, rebase_path_author_script(), 256) <= 0) | |
a2a20b0d | 575 | return -1; |
b5a67045 JS |
576 | |
577 | for (p = script.buf; *p; p++) | |
578 | if (skip_prefix(p, "'\\\\''", (const char **)&p2)) | |
579 | strbuf_splice(&script, p - script.buf, p2 - p, "'", 1); | |
580 | else if (*p == '\'') | |
581 | strbuf_splice(&script, p-- - script.buf, 1, "", 0); | |
582 | else if (*p == '\n') { | |
583 | *p = '\0'; | |
584 | count++; | |
585 | } | |
586 | ||
a2a20b0d JS |
587 | for (i = 0, p = script.buf; i < count; i++) { |
588 | argv_array_push(env, p); | |
b5a67045 JS |
589 | p += strlen(p) + 1; |
590 | } | |
b5a67045 | 591 | |
a2a20b0d | 592 | return 0; |
b5a67045 JS |
593 | } |
594 | ||
791eb870 JS |
595 | static const char staged_changes_advice[] = |
596 | N_("you have staged changes in your working tree\n" | |
597 | "If these changes are meant to be squashed into the previous commit, run:\n" | |
598 | "\n" | |
599 | " git commit --amend %s\n" | |
600 | "\n" | |
601 | "If they are meant to go into a new commit, run:\n" | |
602 | "\n" | |
603 | " git commit %s\n" | |
604 | "\n" | |
605 | "In both cases, once you're done, continue with:\n" | |
606 | "\n" | |
607 | " git rebase --continue\n"); | |
608 | ||
789b3eff JS |
609 | #define ALLOW_EMPTY (1<<0) |
610 | #define EDIT_MSG (1<<1) | |
611 | #define AMEND_MSG (1<<2) | |
612 | #define CLEANUP_MSG (1<<3) | |
b92ff6e8 | 613 | #define VERIFY_MSG (1<<4) |
789b3eff | 614 | |
043a4492 RR |
615 | /* |
616 | * If we are cherry-pick, and if the merge did not result in | |
617 | * hand-editing, we will hit this commit and inherit the original | |
618 | * author date and name. | |
b5a67045 | 619 | * |
043a4492 RR |
620 | * If we are revert, or if our cherry-pick results in a hand merge, |
621 | * we had better say that the current user is responsible for that. | |
b5a67045 JS |
622 | * |
623 | * An exception is when run_git_commit() is called during an | |
624 | * interactive rebase: in that case, we will want to retain the | |
625 | * author metadata. | |
043a4492 | 626 | */ |
ac2b0e8f | 627 | static int run_git_commit(const char *defmsg, struct replay_opts *opts, |
789b3eff | 628 | unsigned int flags) |
043a4492 | 629 | { |
07d968ef | 630 | struct child_process cmd = CHILD_PROCESS_INIT; |
17d65f03 | 631 | const char *value; |
b27cfb0d | 632 | |
07d968ef JS |
633 | cmd.git_cmd = 1; |
634 | ||
b5a67045 | 635 | if (is_rebase_i(opts)) { |
789b3eff | 636 | if (!(flags & EDIT_MSG)) { |
9a757c49 JS |
637 | cmd.stdout_to_stderr = 1; |
638 | cmd.err = -1; | |
639 | } | |
640 | ||
07d968ef | 641 | if (read_env_script(&cmd.env_array)) { |
a1c75762 JS |
642 | const char *gpg_opt = gpg_sign_opt_quoted(opts); |
643 | ||
791eb870 JS |
644 | return error(_(staged_changes_advice), |
645 | gpg_opt, gpg_opt); | |
a1c75762 | 646 | } |
b5a67045 JS |
647 | } |
648 | ||
07d968ef | 649 | argv_array_push(&cmd.args, "commit"); |
043a4492 | 650 | |
b92ff6e8 JS |
651 | if (!(flags & VERIFY_MSG)) |
652 | argv_array_push(&cmd.args, "-n"); | |
789b3eff | 653 | if ((flags & AMEND_MSG)) |
07d968ef | 654 | argv_array_push(&cmd.args, "--amend"); |
3bdd5522 | 655 | if (opts->gpg_sign) |
07d968ef | 656 | argv_array_pushf(&cmd.args, "-S%s", opts->gpg_sign); |
043a4492 | 657 | if (opts->signoff) |
07d968ef | 658 | argv_array_push(&cmd.args, "-s"); |
b5a67045 | 659 | if (defmsg) |
07d968ef | 660 | argv_array_pushl(&cmd.args, "-F", defmsg, NULL); |
789b3eff | 661 | if ((flags & CLEANUP_MSG)) |
07d968ef | 662 | argv_array_push(&cmd.args, "--cleanup=strip"); |
789b3eff | 663 | if ((flags & EDIT_MSG)) |
07d968ef | 664 | argv_array_push(&cmd.args, "-e"); |
789b3eff | 665 | else if (!(flags & CLEANUP_MSG) && |
0009426d | 666 | !opts->signoff && !opts->record_origin && |
b5a67045 | 667 | git_config_get_value("commit.cleanup", &value)) |
07d968ef | 668 | argv_array_push(&cmd.args, "--cleanup=verbatim"); |
b27cfb0d | 669 | |
789b3eff | 670 | if ((flags & ALLOW_EMPTY)) |
07d968ef | 671 | argv_array_push(&cmd.args, "--allow-empty"); |
df478b74 | 672 | |
4bee9584 | 673 | if (opts->allow_empty_message) |
07d968ef | 674 | argv_array_push(&cmd.args, "--allow-empty-message"); |
4bee9584 | 675 | |
9a757c49 JS |
676 | if (cmd.err == -1) { |
677 | /* hide stderr on success */ | |
678 | struct strbuf buf = STRBUF_INIT; | |
679 | int rc = pipe_command(&cmd, | |
680 | NULL, 0, | |
681 | /* stdout is already redirected */ | |
682 | NULL, 0, | |
683 | &buf, 0); | |
684 | if (rc) | |
685 | fputs(buf.buf, stderr); | |
686 | strbuf_release(&buf); | |
687 | return rc; | |
688 | } | |
b5a67045 | 689 | |
07d968ef | 690 | return run_command(&cmd); |
b27cfb0d NH |
691 | } |
692 | ||
693 | static int is_original_commit_empty(struct commit *commit) | |
694 | { | |
092bbcdf | 695 | const struct object_id *ptree_oid; |
b27cfb0d NH |
696 | |
697 | if (parse_commit(commit)) | |
93b3df6f | 698 | return error(_("could not parse commit %s\n"), |
f2fd0760 | 699 | oid_to_hex(&commit->object.oid)); |
b27cfb0d NH |
700 | if (commit->parents) { |
701 | struct commit *parent = commit->parents->item; | |
702 | if (parse_commit(parent)) | |
93b3df6f | 703 | return error(_("could not parse parent commit %s\n"), |
f2fd0760 | 704 | oid_to_hex(&parent->object.oid)); |
092bbcdf | 705 | ptree_oid = &parent->tree->object.oid; |
b27cfb0d | 706 | } else { |
092bbcdf | 707 | ptree_oid = &empty_tree_oid; /* commit is root */ |
043a4492 | 708 | } |
043a4492 | 709 | |
092bbcdf | 710 | return !oidcmp(ptree_oid, &commit->tree->object.oid); |
043a4492 RR |
711 | } |
712 | ||
ac2b0e8f JH |
713 | /* |
714 | * Do we run "git commit" with "--allow-empty"? | |
715 | */ | |
716 | static int allow_empty(struct replay_opts *opts, struct commit *commit) | |
717 | { | |
718 | int index_unchanged, empty_commit; | |
719 | ||
720 | /* | |
721 | * Three cases: | |
722 | * | |
723 | * (1) we do not allow empty at all and error out. | |
724 | * | |
725 | * (2) we allow ones that were initially empty, but | |
726 | * forbid the ones that become empty; | |
727 | * | |
728 | * (3) we allow both. | |
729 | */ | |
730 | if (!opts->allow_empty) | |
731 | return 0; /* let "git commit" barf as necessary */ | |
732 | ||
733 | index_unchanged = is_index_unchanged(); | |
734 | if (index_unchanged < 0) | |
735 | return index_unchanged; | |
736 | if (!index_unchanged) | |
737 | return 0; /* we do not have to say --allow-empty */ | |
738 | ||
739 | if (opts->keep_redundant_commits) | |
740 | return 1; | |
741 | ||
742 | empty_commit = is_original_commit_empty(commit); | |
743 | if (empty_commit < 0) | |
744 | return empty_commit; | |
745 | if (!empty_commit) | |
746 | return 0; | |
747 | else | |
748 | return 1; | |
749 | } | |
750 | ||
25c43667 JS |
751 | /* |
752 | * Note that ordering matters in this enum. Not only must it match the mapping | |
753 | * below, it is also divided into several sections that matter. When adding | |
754 | * new commands, make sure you add it in the right section. | |
755 | */ | |
004fefa7 | 756 | enum todo_command { |
25c43667 | 757 | /* commands that handle commits */ |
004fefa7 | 758 | TODO_PICK = 0, |
25c43667 | 759 | TODO_REVERT, |
56dc3ab0 | 760 | TODO_EDIT, |
04efc8b5 | 761 | TODO_REWORD, |
6e98de72 JS |
762 | TODO_FIXUP, |
763 | TODO_SQUASH, | |
311af526 JS |
764 | /* commands that do something else than handling a single commit */ |
765 | TODO_EXEC, | |
25c43667 | 766 | /* commands that do nothing but are counted for reporting progress */ |
b3fdd581 | 767 | TODO_NOOP, |
ac191470 JS |
768 | TODO_DROP, |
769 | /* comments (not counted for reporting progress) */ | |
770 | TODO_COMMENT | |
004fefa7 JS |
771 | }; |
772 | ||
414697a9 JS |
773 | static struct { |
774 | char c; | |
775 | const char *str; | |
776 | } todo_command_info[] = { | |
777 | { 'p', "pick" }, | |
778 | { 0, "revert" }, | |
779 | { 'e', "edit" }, | |
04efc8b5 | 780 | { 'r', "reword" }, |
414697a9 JS |
781 | { 'f', "fixup" }, |
782 | { 's', "squash" }, | |
783 | { 'x', "exec" }, | |
b3fdd581 | 784 | { 0, "noop" }, |
ac191470 JS |
785 | { 'd', "drop" }, |
786 | { 0, NULL } | |
004fefa7 JS |
787 | }; |
788 | ||
789 | static const char *command_to_string(const enum todo_command command) | |
790 | { | |
ac191470 | 791 | if (command < TODO_COMMENT) |
414697a9 | 792 | return todo_command_info[command].str; |
004fefa7 JS |
793 | die("Unknown command: %d", command); |
794 | } | |
795 | ||
25c43667 JS |
796 | static int is_noop(const enum todo_command command) |
797 | { | |
b3fdd581 | 798 | return TODO_NOOP <= command; |
25c43667 | 799 | } |
004fefa7 | 800 | |
6e98de72 JS |
801 | static int is_fixup(enum todo_command command) |
802 | { | |
803 | return command == TODO_FIXUP || command == TODO_SQUASH; | |
804 | } | |
805 | ||
806 | static int update_squash_messages(enum todo_command command, | |
807 | struct commit *commit, struct replay_opts *opts) | |
808 | { | |
809 | struct strbuf buf = STRBUF_INIT; | |
810 | int count, res; | |
811 | const char *message, *body; | |
812 | ||
813 | if (file_exists(rebase_path_squash_msg())) { | |
814 | struct strbuf header = STRBUF_INIT; | |
815 | char *eol, *p; | |
816 | ||
817 | if (strbuf_read_file(&buf, rebase_path_squash_msg(), 2048) <= 0) | |
818 | return error(_("could not read '%s'"), | |
819 | rebase_path_squash_msg()); | |
820 | ||
821 | p = buf.buf + 1; | |
822 | eol = strchrnul(buf.buf, '\n'); | |
823 | if (buf.buf[0] != comment_line_char || | |
824 | (p += strcspn(p, "0123456789\n")) == eol) | |
825 | return error(_("unexpected 1st line of squash message:" | |
826 | "\n\n\t%.*s"), | |
827 | (int)(eol - buf.buf), buf.buf); | |
828 | count = strtol(p, NULL, 10); | |
829 | ||
830 | if (count < 1) | |
831 | return error(_("invalid 1st line of squash message:\n" | |
832 | "\n\t%.*s"), | |
833 | (int)(eol - buf.buf), buf.buf); | |
834 | ||
835 | strbuf_addf(&header, "%c ", comment_line_char); | |
836 | strbuf_addf(&header, | |
837 | _("This is a combination of %d commits."), ++count); | |
838 | strbuf_splice(&buf, 0, eol - buf.buf, header.buf, header.len); | |
839 | strbuf_release(&header); | |
840 | } else { | |
33d66df3 | 841 | struct object_id head; |
6e98de72 JS |
842 | struct commit *head_commit; |
843 | const char *head_message, *body; | |
844 | ||
33d66df3 | 845 | if (get_oid("HEAD", &head)) |
6e98de72 | 846 | return error(_("need a HEAD to fixup")); |
bc83266a | 847 | if (!(head_commit = lookup_commit_reference(&head))) |
6e98de72 JS |
848 | return error(_("could not read HEAD")); |
849 | if (!(head_message = get_commit_buffer(head_commit, NULL))) | |
850 | return error(_("could not read HEAD's commit message")); | |
851 | ||
852 | find_commit_subject(head_message, &body); | |
853 | if (write_message(body, strlen(body), | |
854 | rebase_path_fixup_msg(), 0)) { | |
855 | unuse_commit_buffer(head_commit, head_message); | |
856 | return error(_("cannot write '%s'"), | |
857 | rebase_path_fixup_msg()); | |
858 | } | |
859 | ||
860 | count = 2; | |
861 | strbuf_addf(&buf, "%c ", comment_line_char); | |
862 | strbuf_addf(&buf, _("This is a combination of %d commits."), | |
863 | count); | |
864 | strbuf_addf(&buf, "\n%c ", comment_line_char); | |
865 | strbuf_addstr(&buf, _("This is the 1st commit message:")); | |
866 | strbuf_addstr(&buf, "\n\n"); | |
867 | strbuf_addstr(&buf, body); | |
868 | ||
869 | unuse_commit_buffer(head_commit, head_message); | |
870 | } | |
871 | ||
872 | if (!(message = get_commit_buffer(commit, NULL))) | |
873 | return error(_("could not read commit message of %s"), | |
874 | oid_to_hex(&commit->object.oid)); | |
875 | find_commit_subject(message, &body); | |
876 | ||
877 | if (command == TODO_SQUASH) { | |
878 | unlink(rebase_path_fixup_msg()); | |
879 | strbuf_addf(&buf, "\n%c ", comment_line_char); | |
880 | strbuf_addf(&buf, _("This is the commit message #%d:"), count); | |
881 | strbuf_addstr(&buf, "\n\n"); | |
882 | strbuf_addstr(&buf, body); | |
883 | } else if (command == TODO_FIXUP) { | |
884 | strbuf_addf(&buf, "\n%c ", comment_line_char); | |
885 | strbuf_addf(&buf, _("The commit message #%d will be skipped:"), | |
886 | count); | |
887 | strbuf_addstr(&buf, "\n\n"); | |
888 | strbuf_add_commented_lines(&buf, body, strlen(body)); | |
889 | } else | |
890 | return error(_("unknown command: %d"), command); | |
891 | unuse_commit_buffer(commit, message); | |
892 | ||
893 | res = write_message(buf.buf, buf.len, rebase_path_squash_msg(), 0); | |
894 | strbuf_release(&buf); | |
895 | return res; | |
896 | } | |
897 | ||
25cb8df9 JS |
898 | static void flush_rewritten_pending(void) { |
899 | struct strbuf buf = STRBUF_INIT; | |
092bbcdf | 900 | struct object_id newoid; |
25cb8df9 JS |
901 | FILE *out; |
902 | ||
092bbcdf | 903 | if (strbuf_read_file(&buf, rebase_path_rewritten_pending(), (GIT_MAX_HEXSZ + 1) * 2) > 0 && |
904 | !get_oid("HEAD", &newoid) && | |
e9d983f1 | 905 | (out = fopen_or_warn(rebase_path_rewritten_list(), "a"))) { |
25cb8df9 JS |
906 | char *bol = buf.buf, *eol; |
907 | ||
908 | while (*bol) { | |
909 | eol = strchrnul(bol, '\n'); | |
910 | fprintf(out, "%.*s %s\n", (int)(eol - bol), | |
092bbcdf | 911 | bol, oid_to_hex(&newoid)); |
25cb8df9 JS |
912 | if (!*eol) |
913 | break; | |
914 | bol = eol + 1; | |
915 | } | |
916 | fclose(out); | |
917 | unlink(rebase_path_rewritten_pending()); | |
918 | } | |
919 | strbuf_release(&buf); | |
920 | } | |
921 | ||
922 | static void record_in_rewritten(struct object_id *oid, | |
923 | enum todo_command next_command) { | |
e9d983f1 | 924 | FILE *out = fopen_or_warn(rebase_path_rewritten_pending(), "a"); |
25cb8df9 JS |
925 | |
926 | if (!out) | |
927 | return; | |
928 | ||
929 | fprintf(out, "%s\n", oid_to_hex(oid)); | |
930 | fclose(out); | |
931 | ||
932 | if (!is_fixup(next_command)) | |
933 | flush_rewritten_pending(); | |
934 | } | |
935 | ||
004fefa7 | 936 | static int do_pick_commit(enum todo_command command, struct commit *commit, |
6e98de72 | 937 | struct replay_opts *opts, int final_fixup) |
043a4492 | 938 | { |
789b3eff JS |
939 | unsigned int flags = opts->edit ? EDIT_MSG : 0; |
940 | const char *msg_file = opts->edit ? NULL : git_path_merge_msg(); | |
ace976b2 | 941 | struct object_id head; |
043a4492 RR |
942 | struct commit *base, *next, *parent; |
943 | const char *base_label, *next_label; | |
d74a4e57 | 944 | struct commit_message msg = { NULL, NULL, NULL, NULL }; |
043a4492 | 945 | struct strbuf msgbuf = STRBUF_INIT; |
789b3eff | 946 | int res, unborn = 0, allow; |
043a4492 RR |
947 | |
948 | if (opts->no_commit) { | |
949 | /* | |
950 | * We do not intend to commit immediately. We just want to | |
951 | * merge the differences in, so let's compute the tree | |
952 | * that represents the "current" state for merge-recursive | |
953 | * to work on. | |
954 | */ | |
ace976b2 | 955 | if (write_cache_as_tree(head.hash, 0, NULL)) |
93b3df6f | 956 | return error(_("your index file is unmerged.")); |
043a4492 | 957 | } else { |
ace976b2 | 958 | unborn = get_oid("HEAD", &head); |
334ae397 | 959 | if (unborn) |
ace976b2 | 960 | oidcpy(&head, &empty_tree_oid); |
018ec3c8 | 961 | if (index_differs_from(unborn ? EMPTY_TREE_SHA1_HEX : "HEAD", 0, 0)) |
043a4492 RR |
962 | return error_dirty_index(opts); |
963 | } | |
964 | discard_cache(); | |
965 | ||
637666c8 | 966 | if (!commit->parents) |
043a4492 | 967 | parent = NULL; |
043a4492 RR |
968 | else if (commit->parents->next) { |
969 | /* Reverting or cherry-picking a merge commit */ | |
970 | int cnt; | |
971 | struct commit_list *p; | |
972 | ||
973 | if (!opts->mainline) | |
93b3df6f | 974 | return error(_("commit %s is a merge but no -m option was given."), |
f2fd0760 | 975 | oid_to_hex(&commit->object.oid)); |
043a4492 RR |
976 | |
977 | for (cnt = 1, p = commit->parents; | |
978 | cnt != opts->mainline && p; | |
979 | cnt++) | |
980 | p = p->next; | |
981 | if (cnt != opts->mainline || !p) | |
93b3df6f | 982 | return error(_("commit %s does not have parent %d"), |
f2fd0760 | 983 | oid_to_hex(&commit->object.oid), opts->mainline); |
043a4492 RR |
984 | parent = p->item; |
985 | } else if (0 < opts->mainline) | |
93b3df6f | 986 | return error(_("mainline was specified but commit %s is not a merge."), |
f2fd0760 | 987 | oid_to_hex(&commit->object.oid)); |
043a4492 RR |
988 | else |
989 | parent = commit->parents->item; | |
990 | ||
bcbb68be JS |
991 | if (get_message(commit, &msg) != 0) |
992 | return error(_("cannot get commit message for %s"), | |
993 | oid_to_hex(&commit->object.oid)); | |
994 | ||
6e98de72 | 995 | if (opts->allow_ff && !is_fixup(command) && |
ace976b2 | 996 | ((parent && !oidcmp(&parent->object.oid, &head)) || |
bcbb68be JS |
997 | (!parent && unborn))) { |
998 | if (is_rebase_i(opts)) | |
999 | write_author_script(msg.message); | |
ace976b2 | 1000 | res = fast_forward_to(&commit->object.oid, &head, unborn, |
bcbb68be JS |
1001 | opts); |
1002 | if (res || command != TODO_REWORD) | |
1003 | goto leave; | |
789b3eff | 1004 | flags |= EDIT_MSG | AMEND_MSG; |
b92ff6e8 JS |
1005 | if (command == TODO_REWORD) |
1006 | flags |= VERIFY_MSG; | |
bcbb68be JS |
1007 | msg_file = NULL; |
1008 | goto fast_forward_edit; | |
1009 | } | |
043a4492 | 1010 | if (parent && parse_commit(parent) < 0) |
004fefa7 JS |
1011 | /* TRANSLATORS: The first %s will be a "todo" command like |
1012 | "revert" or "pick", the second %s a SHA1. */ | |
043a4492 | 1013 | return error(_("%s: cannot parse parent commit %s"), |
004fefa7 JS |
1014 | command_to_string(command), |
1015 | oid_to_hex(&parent->object.oid)); | |
043a4492 | 1016 | |
043a4492 RR |
1017 | /* |
1018 | * "commit" is an existing commit. We would want to apply | |
1019 | * the difference it introduces since its first parent "prev" | |
1020 | * on top of the current HEAD if we are cherry-pick. Or the | |
1021 | * reverse of it if we are revert. | |
1022 | */ | |
1023 | ||
004fefa7 | 1024 | if (command == TODO_REVERT) { |
043a4492 RR |
1025 | base = commit; |
1026 | base_label = msg.label; | |
1027 | next = parent; | |
1028 | next_label = msg.parent_label; | |
1029 | strbuf_addstr(&msgbuf, "Revert \""); | |
1030 | strbuf_addstr(&msgbuf, msg.subject); | |
1031 | strbuf_addstr(&msgbuf, "\"\n\nThis reverts commit "); | |
f2fd0760 | 1032 | strbuf_addstr(&msgbuf, oid_to_hex(&commit->object.oid)); |
043a4492 RR |
1033 | |
1034 | if (commit->parents && commit->parents->next) { | |
1035 | strbuf_addstr(&msgbuf, ", reversing\nchanges made to "); | |
f2fd0760 | 1036 | strbuf_addstr(&msgbuf, oid_to_hex(&parent->object.oid)); |
043a4492 RR |
1037 | } |
1038 | strbuf_addstr(&msgbuf, ".\n"); | |
1039 | } else { | |
1040 | const char *p; | |
1041 | ||
1042 | base = parent; | |
1043 | base_label = msg.parent_label; | |
1044 | next = commit; | |
1045 | next_label = msg.label; | |
1046 | ||
23aa5142 JS |
1047 | /* Append the commit log message to msgbuf. */ |
1048 | if (find_commit_subject(msg.message, &p)) | |
1049 | strbuf_addstr(&msgbuf, p); | |
043a4492 RR |
1050 | |
1051 | if (opts->record_origin) { | |
44dc738a | 1052 | strbuf_complete_line(&msgbuf); |
bab4d109 | 1053 | if (!has_conforming_footer(&msgbuf, NULL, 0)) |
b971e04f | 1054 | strbuf_addch(&msgbuf, '\n'); |
cd650a4e | 1055 | strbuf_addstr(&msgbuf, cherry_picked_prefix); |
f2fd0760 | 1056 | strbuf_addstr(&msgbuf, oid_to_hex(&commit->object.oid)); |
043a4492 RR |
1057 | strbuf_addstr(&msgbuf, ")\n"); |
1058 | } | |
1059 | } | |
1060 | ||
04efc8b5 | 1061 | if (command == TODO_REWORD) |
b92ff6e8 | 1062 | flags |= EDIT_MSG | VERIFY_MSG; |
04efc8b5 | 1063 | else if (is_fixup(command)) { |
6e98de72 JS |
1064 | if (update_squash_messages(command, commit, opts)) |
1065 | return -1; | |
789b3eff | 1066 | flags |= AMEND_MSG; |
6e98de72 JS |
1067 | if (!final_fixup) |
1068 | msg_file = rebase_path_squash_msg(); | |
1069 | else if (file_exists(rebase_path_fixup_msg())) { | |
789b3eff | 1070 | flags |= CLEANUP_MSG; |
6e98de72 JS |
1071 | msg_file = rebase_path_fixup_msg(); |
1072 | } else { | |
ca03e067 | 1073 | const char *dest = git_path_squash_msg(); |
6e98de72 JS |
1074 | unlink(dest); |
1075 | if (copy_file(dest, rebase_path_squash_msg(), 0666)) | |
1076 | return error(_("could not rename '%s' to '%s'"), | |
1077 | rebase_path_squash_msg(), dest); | |
ca03e067 | 1078 | unlink(git_path_merge_msg()); |
6e98de72 | 1079 | msg_file = dest; |
789b3eff | 1080 | flags |= EDIT_MSG; |
6e98de72 JS |
1081 | } |
1082 | } | |
1083 | ||
0473f28a JS |
1084 | if (is_rebase_i(opts) && write_author_script(msg.message) < 0) |
1085 | res = -1; | |
1086 | else if (!opts->strategy || !strcmp(opts->strategy, "recursive") || command == TODO_REVERT) { | |
043a4492 | 1087 | res = do_recursive_merge(base, next, base_label, next_label, |
48be4c62 | 1088 | &head, &msgbuf, opts); |
f241ff0d JS |
1089 | if (res < 0) |
1090 | return res; | |
75871495 | 1091 | res |= write_message(msgbuf.buf, msgbuf.len, |
f56fffef | 1092 | git_path_merge_msg(), 0); |
043a4492 RR |
1093 | } else { |
1094 | struct commit_list *common = NULL; | |
1095 | struct commit_list *remotes = NULL; | |
1096 | ||
75871495 | 1097 | res = write_message(msgbuf.buf, msgbuf.len, |
f56fffef | 1098 | git_path_merge_msg(), 0); |
043a4492 RR |
1099 | |
1100 | commit_list_insert(base, &common); | |
1101 | commit_list_insert(next, &remotes); | |
03a4e260 JS |
1102 | res |= try_merge_command(opts->strategy, |
1103 | opts->xopts_nr, (const char **)opts->xopts, | |
ace976b2 | 1104 | common, oid_to_hex(&head), remotes); |
043a4492 RR |
1105 | free_commit_list(common); |
1106 | free_commit_list(remotes); | |
1107 | } | |
452202c7 | 1108 | strbuf_release(&msgbuf); |
043a4492 RR |
1109 | |
1110 | /* | |
1111 | * If the merge was clean or if it failed due to conflict, we write | |
1112 | * CHERRY_PICK_HEAD for the subsequent invocation of commit to use. | |
1113 | * However, if the merge did not even start, then we don't want to | |
1114 | * write it at all. | |
1115 | */ | |
004fefa7 | 1116 | if (command == TODO_PICK && !opts->no_commit && (res == 0 || res == 1) && |
dbfad033 JS |
1117 | update_ref(NULL, "CHERRY_PICK_HEAD", commit->object.oid.hash, NULL, |
1118 | REF_NODEREF, UPDATE_REFS_MSG_ON_ERR)) | |
1119 | res = -1; | |
004fefa7 | 1120 | if (command == TODO_REVERT && ((opts->no_commit && res == 0) || res == 1) && |
dbfad033 JS |
1121 | update_ref(NULL, "REVERT_HEAD", commit->object.oid.hash, NULL, |
1122 | REF_NODEREF, UPDATE_REFS_MSG_ON_ERR)) | |
1123 | res = -1; | |
043a4492 RR |
1124 | |
1125 | if (res) { | |
004fefa7 | 1126 | error(command == TODO_REVERT |
043a4492 RR |
1127 | ? _("could not revert %s... %s") |
1128 | : _("could not apply %s... %s"), | |
39755964 | 1129 | short_commit_name(commit), msg.subject); |
ed727b19 | 1130 | print_advice(res == 1, opts); |
043a4492 | 1131 | rerere(opts->allow_rerere_auto); |
c8d1351d | 1132 | goto leave; |
043a4492 RR |
1133 | } |
1134 | ||
c8d1351d | 1135 | allow = allow_empty(opts, commit); |
706728a3 FC |
1136 | if (allow < 0) { |
1137 | res = allow; | |
1138 | goto leave; | |
789b3eff JS |
1139 | } else if (allow) |
1140 | flags |= ALLOW_EMPTY; | |
c8d1351d | 1141 | if (!opts->no_commit) |
bcbb68be | 1142 | fast_forward_edit: |
789b3eff | 1143 | res = run_git_commit(msg_file, opts, flags); |
6e98de72 JS |
1144 | |
1145 | if (!res && final_fixup) { | |
1146 | unlink(rebase_path_fixup_msg()); | |
1147 | unlink(rebase_path_squash_msg()); | |
1148 | } | |
c8d1351d FC |
1149 | |
1150 | leave: | |
d74a4e57 | 1151 | free_message(commit, &msg); |
1e41229d | 1152 | update_abort_safety_file(); |
043a4492 RR |
1153 | |
1154 | return res; | |
1155 | } | |
1156 | ||
c3e8618c | 1157 | static int prepare_revs(struct replay_opts *opts) |
043a4492 | 1158 | { |
a73e22e9 MZ |
1159 | /* |
1160 | * picking (but not reverting) ranges (but not individual revisions) | |
1161 | * should be done in reverse | |
1162 | */ | |
1163 | if (opts->action == REPLAY_PICK && !opts->revs->no_walk) | |
043a4492 RR |
1164 | opts->revs->reverse ^= 1; |
1165 | ||
1166 | if (prepare_revision_walk(opts->revs)) | |
c3e8618c | 1167 | return error(_("revision walk setup failed")); |
043a4492 RR |
1168 | |
1169 | if (!opts->revs->commits) | |
c3e8618c JS |
1170 | return error(_("empty commit set passed")); |
1171 | return 0; | |
043a4492 RR |
1172 | } |
1173 | ||
0d9c6dc9 | 1174 | static int read_and_refresh_cache(struct replay_opts *opts) |
043a4492 RR |
1175 | { |
1176 | static struct lock_file index_lock; | |
1177 | int index_fd = hold_locked_index(&index_lock, 0); | |
49fb937e JS |
1178 | if (read_index_preload(&the_index, NULL) < 0) { |
1179 | rollback_lock_file(&index_lock); | |
0d9c6dc9 | 1180 | return error(_("git %s: failed to read the index"), |
c28cbc5e | 1181 | _(action_name(opts))); |
49fb937e | 1182 | } |
043a4492 | 1183 | refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL); |
33c297aa | 1184 | if (the_index.cache_changed && index_fd >= 0) { |
49fb937e JS |
1185 | if (write_locked_index(&the_index, &index_lock, COMMIT_LOCK)) { |
1186 | rollback_lock_file(&index_lock); | |
0d9c6dc9 | 1187 | return error(_("git %s: failed to refresh the index"), |
c28cbc5e | 1188 | _(action_name(opts))); |
49fb937e | 1189 | } |
043a4492 RR |
1190 | } |
1191 | rollback_lock_file(&index_lock); | |
0d9c6dc9 | 1192 | return 0; |
043a4492 RR |
1193 | } |
1194 | ||
004fefa7 JS |
1195 | struct todo_item { |
1196 | enum todo_command command; | |
1197 | struct commit *commit; | |
c22f7dfb JS |
1198 | const char *arg; |
1199 | int arg_len; | |
004fefa7 JS |
1200 | size_t offset_in_buf; |
1201 | }; | |
1202 | ||
1203 | struct todo_list { | |
1204 | struct strbuf buf; | |
1205 | struct todo_item *items; | |
1206 | int nr, alloc, current; | |
968492e4 | 1207 | int done_nr, total_nr; |
54fd3243 | 1208 | struct stat_data stat; |
004fefa7 JS |
1209 | }; |
1210 | ||
1211 | #define TODO_LIST_INIT { STRBUF_INIT } | |
1212 | ||
1213 | static void todo_list_release(struct todo_list *todo_list) | |
043a4492 | 1214 | { |
004fefa7 | 1215 | strbuf_release(&todo_list->buf); |
6a83d902 | 1216 | FREE_AND_NULL(todo_list->items); |
004fefa7 JS |
1217 | todo_list->nr = todo_list->alloc = 0; |
1218 | } | |
043a4492 | 1219 | |
004fefa7 JS |
1220 | static struct todo_item *append_new_todo(struct todo_list *todo_list) |
1221 | { | |
1222 | ALLOC_GROW(todo_list->items, todo_list->nr + 1, todo_list->alloc); | |
1223 | return todo_list->items + todo_list->nr++; | |
043a4492 RR |
1224 | } |
1225 | ||
004fefa7 | 1226 | static int parse_insn_line(struct todo_item *item, const char *bol, char *eol) |
043a4492 | 1227 | { |
1e43ed98 | 1228 | struct object_id commit_oid; |
043a4492 | 1229 | char *end_of_object_name; |
004fefa7 JS |
1230 | int i, saved, status, padding; |
1231 | ||
8f8550b3 JS |
1232 | /* left-trim */ |
1233 | bol += strspn(bol, " \t"); | |
1234 | ||
25c43667 | 1235 | if (bol == eol || *bol == '\r' || *bol == comment_line_char) { |
ac191470 | 1236 | item->command = TODO_COMMENT; |
25c43667 JS |
1237 | item->commit = NULL; |
1238 | item->arg = bol; | |
1239 | item->arg_len = eol - bol; | |
1240 | return 0; | |
1241 | } | |
1242 | ||
ac191470 | 1243 | for (i = 0; i < TODO_COMMENT; i++) |
414697a9 JS |
1244 | if (skip_prefix(bol, todo_command_info[i].str, &bol)) { |
1245 | item->command = i; | |
1246 | break; | |
1247 | } else if (bol[1] == ' ' && *bol == todo_command_info[i].c) { | |
1248 | bol++; | |
004fefa7 JS |
1249 | item->command = i; |
1250 | break; | |
1251 | } | |
ac191470 | 1252 | if (i >= TODO_COMMENT) |
004fefa7 | 1253 | return -1; |
043a4492 | 1254 | |
25c43667 JS |
1255 | if (item->command == TODO_NOOP) { |
1256 | item->commit = NULL; | |
1257 | item->arg = bol; | |
1258 | item->arg_len = eol - bol; | |
1259 | return 0; | |
1260 | } | |
1261 | ||
043a4492 RR |
1262 | /* Eat up extra spaces/ tabs before object name */ |
1263 | padding = strspn(bol, " \t"); | |
1264 | if (!padding) | |
004fefa7 | 1265 | return -1; |
043a4492 RR |
1266 | bol += padding; |
1267 | ||
311af526 JS |
1268 | if (item->command == TODO_EXEC) { |
1269 | item->arg = bol; | |
1270 | item->arg_len = (int)(eol - bol); | |
1271 | return 0; | |
1272 | } | |
1273 | ||
004fefa7 | 1274 | end_of_object_name = (char *) bol + strcspn(bol, " \t\n"); |
043a4492 RR |
1275 | saved = *end_of_object_name; |
1276 | *end_of_object_name = '\0'; | |
1e43ed98 | 1277 | status = get_oid(bol, &commit_oid); |
043a4492 RR |
1278 | *end_of_object_name = saved; |
1279 | ||
c22f7dfb JS |
1280 | item->arg = end_of_object_name + strspn(end_of_object_name, " \t"); |
1281 | item->arg_len = (int)(eol - item->arg); | |
1282 | ||
043a4492 | 1283 | if (status < 0) |
004fefa7 | 1284 | return -1; |
043a4492 | 1285 | |
bc83266a | 1286 | item->commit = lookup_commit_reference(&commit_oid); |
004fefa7 | 1287 | return !item->commit; |
043a4492 RR |
1288 | } |
1289 | ||
004fefa7 | 1290 | static int parse_insn_buffer(char *buf, struct todo_list *todo_list) |
043a4492 | 1291 | { |
004fefa7 JS |
1292 | struct todo_item *item; |
1293 | char *p = buf, *next_p; | |
6e98de72 | 1294 | int i, res = 0, fixup_okay = file_exists(rebase_path_done()); |
043a4492 | 1295 | |
004fefa7 | 1296 | for (i = 1; *p; i++, p = next_p) { |
043a4492 | 1297 | char *eol = strchrnul(p, '\n'); |
004fefa7 JS |
1298 | |
1299 | next_p = *eol ? eol + 1 /* skip LF */ : eol; | |
1300 | ||
6307041d JS |
1301 | if (p != eol && eol[-1] == '\r') |
1302 | eol--; /* strip Carriage Return */ | |
1303 | ||
004fefa7 JS |
1304 | item = append_new_todo(todo_list); |
1305 | item->offset_in_buf = p - todo_list->buf.buf; | |
1306 | if (parse_insn_line(item, p, eol)) { | |
93b3df6f | 1307 | res = error(_("invalid line %d: %.*s"), |
004fefa7 | 1308 | i, (int)(eol - p), p); |
6e98de72 | 1309 | item->command = TODO_NOOP; |
004fefa7 | 1310 | } |
6e98de72 JS |
1311 | |
1312 | if (fixup_okay) | |
1313 | ; /* do nothing */ | |
1314 | else if (is_fixup(item->command)) | |
1315 | return error(_("cannot '%s' without a previous commit"), | |
1316 | command_to_string(item->command)); | |
1317 | else if (!is_noop(item->command)) | |
1318 | fixup_okay = 1; | |
043a4492 | 1319 | } |
52865279 | 1320 | |
004fefa7 | 1321 | return res; |
043a4492 RR |
1322 | } |
1323 | ||
968492e4 JS |
1324 | static int count_commands(struct todo_list *todo_list) |
1325 | { | |
1326 | int count = 0, i; | |
1327 | ||
1328 | for (i = 0; i < todo_list->nr; i++) | |
1329 | if (todo_list->items[i].command != TODO_COMMENT) | |
1330 | count++; | |
1331 | ||
1332 | return count; | |
1333 | } | |
1334 | ||
004fefa7 | 1335 | static int read_populate_todo(struct todo_list *todo_list, |
043a4492 RR |
1336 | struct replay_opts *opts) |
1337 | { | |
54fd3243 | 1338 | struct stat st; |
c0246501 | 1339 | const char *todo_file = get_todo_path(opts); |
043a4492 RR |
1340 | int fd, res; |
1341 | ||
004fefa7 | 1342 | strbuf_reset(&todo_list->buf); |
c0246501 | 1343 | fd = open(todo_file, O_RDONLY); |
043a4492 | 1344 | if (fd < 0) |
93b3df6f | 1345 | return error_errno(_("could not open '%s'"), todo_file); |
004fefa7 | 1346 | if (strbuf_read(&todo_list->buf, fd, 0) < 0) { |
043a4492 | 1347 | close(fd); |
93b3df6f | 1348 | return error(_("could not read '%s'."), todo_file); |
043a4492 RR |
1349 | } |
1350 | close(fd); | |
1351 | ||
54fd3243 SH |
1352 | res = stat(todo_file, &st); |
1353 | if (res) | |
1354 | return error(_("could not stat '%s'"), todo_file); | |
1355 | fill_stat_data(&todo_list->stat, &st); | |
1356 | ||
004fefa7 | 1357 | res = parse_insn_buffer(todo_list->buf.buf, todo_list); |
27fdbb96 JS |
1358 | if (res) { |
1359 | if (is_rebase_i(opts)) | |
1360 | return error(_("please fix this using " | |
1361 | "'git rebase --edit-todo'.")); | |
93b3df6f | 1362 | return error(_("unusable instruction sheet: '%s'"), todo_file); |
27fdbb96 | 1363 | } |
2eeaf1b3 | 1364 | |
52865279 JS |
1365 | if (!todo_list->nr && |
1366 | (!is_rebase_i(opts) || !file_exists(rebase_path_done()))) | |
1367 | return error(_("no commits parsed.")); | |
1368 | ||
2eeaf1b3 | 1369 | if (!is_rebase_i(opts)) { |
004fefa7 JS |
1370 | enum todo_command valid = |
1371 | opts->action == REPLAY_PICK ? TODO_PICK : TODO_REVERT; | |
1372 | int i; | |
1373 | ||
1374 | for (i = 0; i < todo_list->nr; i++) | |
1375 | if (valid == todo_list->items[i].command) | |
1376 | continue; | |
1377 | else if (valid == TODO_PICK) | |
93b3df6f | 1378 | return error(_("cannot cherry-pick during a revert.")); |
004fefa7 | 1379 | else |
93b3df6f | 1380 | return error(_("cannot revert during a cherry-pick.")); |
004fefa7 JS |
1381 | } |
1382 | ||
968492e4 JS |
1383 | if (is_rebase_i(opts)) { |
1384 | struct todo_list done = TODO_LIST_INIT; | |
e9d983f1 | 1385 | FILE *f = fopen_or_warn(rebase_path_msgtotal(), "w"); |
968492e4 JS |
1386 | |
1387 | if (strbuf_read_file(&done.buf, rebase_path_done(), 0) > 0 && | |
1388 | !parse_insn_buffer(done.buf.buf, &done)) | |
1389 | todo_list->done_nr = count_commands(&done); | |
1390 | else | |
1391 | todo_list->done_nr = 0; | |
1392 | ||
1393 | todo_list->total_nr = todo_list->done_nr | |
1394 | + count_commands(todo_list); | |
968492e4 | 1395 | todo_list_release(&done); |
ef80069a JS |
1396 | |
1397 | if (f) { | |
1398 | fprintf(f, "%d\n", todo_list->total_nr); | |
1399 | fclose(f); | |
1400 | } | |
968492e4 JS |
1401 | } |
1402 | ||
0ae42a03 | 1403 | return 0; |
043a4492 RR |
1404 | } |
1405 | ||
03a4e260 JS |
1406 | static int git_config_string_dup(char **dest, |
1407 | const char *var, const char *value) | |
1408 | { | |
1409 | if (!value) | |
1410 | return config_error_nonbool(var); | |
1411 | free(*dest); | |
1412 | *dest = xstrdup(value); | |
1413 | return 0; | |
1414 | } | |
1415 | ||
043a4492 RR |
1416 | static int populate_opts_cb(const char *key, const char *value, void *data) |
1417 | { | |
1418 | struct replay_opts *opts = data; | |
1419 | int error_flag = 1; | |
1420 | ||
1421 | if (!value) | |
1422 | error_flag = 0; | |
1423 | else if (!strcmp(key, "options.no-commit")) | |
1424 | opts->no_commit = git_config_bool_or_int(key, value, &error_flag); | |
1425 | else if (!strcmp(key, "options.edit")) | |
1426 | opts->edit = git_config_bool_or_int(key, value, &error_flag); | |
1427 | else if (!strcmp(key, "options.signoff")) | |
1428 | opts->signoff = git_config_bool_or_int(key, value, &error_flag); | |
1429 | else if (!strcmp(key, "options.record-origin")) | |
1430 | opts->record_origin = git_config_bool_or_int(key, value, &error_flag); | |
1431 | else if (!strcmp(key, "options.allow-ff")) | |
1432 | opts->allow_ff = git_config_bool_or_int(key, value, &error_flag); | |
1433 | else if (!strcmp(key, "options.mainline")) | |
1434 | opts->mainline = git_config_int(key, value); | |
1435 | else if (!strcmp(key, "options.strategy")) | |
03a4e260 | 1436 | git_config_string_dup(&opts->strategy, key, value); |
3253553e | 1437 | else if (!strcmp(key, "options.gpg-sign")) |
03a4e260 | 1438 | git_config_string_dup(&opts->gpg_sign, key, value); |
043a4492 RR |
1439 | else if (!strcmp(key, "options.strategy-option")) { |
1440 | ALLOC_GROW(opts->xopts, opts->xopts_nr + 1, opts->xopts_alloc); | |
1441 | opts->xopts[opts->xopts_nr++] = xstrdup(value); | |
8d8cb4b0 PW |
1442 | } else if (!strcmp(key, "options.allow-rerere-auto")) |
1443 | opts->allow_rerere_auto = | |
1444 | git_config_bool_or_int(key, value, &error_flag) ? | |
1445 | RERERE_AUTOUPDATE : RERERE_NOAUTOUPDATE; | |
1446 | else | |
93b3df6f | 1447 | return error(_("invalid key: %s"), key); |
043a4492 RR |
1448 | |
1449 | if (!error_flag) | |
93b3df6f | 1450 | return error(_("invalid value for %s: %s"), key, value); |
043a4492 RR |
1451 | |
1452 | return 0; | |
1453 | } | |
1454 | ||
ca6c6b45 JS |
1455 | static void read_strategy_opts(struct replay_opts *opts, struct strbuf *buf) |
1456 | { | |
1457 | int i; | |
1458 | ||
1459 | strbuf_reset(buf); | |
1460 | if (!read_oneliner(buf, rebase_path_strategy(), 0)) | |
1461 | return; | |
1462 | opts->strategy = strbuf_detach(buf, NULL); | |
1463 | if (!read_oneliner(buf, rebase_path_strategy_opts(), 0)) | |
1464 | return; | |
1465 | ||
1466 | opts->xopts_nr = split_cmdline(buf->buf, (const char ***)&opts->xopts); | |
1467 | for (i = 0; i < opts->xopts_nr; i++) { | |
1468 | const char *arg = opts->xopts[i]; | |
1469 | ||
1470 | skip_prefix(arg, "--", &arg); | |
1471 | opts->xopts[i] = xstrdup(arg); | |
1472 | } | |
1473 | } | |
1474 | ||
5adf9bdc | 1475 | static int read_populate_opts(struct replay_opts *opts) |
043a4492 | 1476 | { |
a1c75762 JS |
1477 | if (is_rebase_i(opts)) { |
1478 | struct strbuf buf = STRBUF_INIT; | |
1479 | ||
1480 | if (read_oneliner(&buf, rebase_path_gpg_sign_opt(), 1)) { | |
1481 | if (!starts_with(buf.buf, "-S")) | |
1482 | strbuf_reset(&buf); | |
1483 | else { | |
1484 | free(opts->gpg_sign); | |
1485 | opts->gpg_sign = xstrdup(buf.buf + 2); | |
1486 | } | |
9b6d7a62 PW |
1487 | strbuf_reset(&buf); |
1488 | } | |
1489 | ||
1490 | if (read_oneliner(&buf, rebase_path_allow_rerere_autoupdate(), 1)) { | |
1491 | if (!strcmp(buf.buf, "--rerere-autoupdate")) | |
1492 | opts->allow_rerere_auto = RERERE_AUTOUPDATE; | |
1493 | else if (!strcmp(buf.buf, "--no-rerere-autoupdate")) | |
1494 | opts->allow_rerere_auto = RERERE_NOAUTOUPDATE; | |
1495 | strbuf_reset(&buf); | |
a1c75762 | 1496 | } |
a1c75762 | 1497 | |
556907f1 JS |
1498 | if (file_exists(rebase_path_verbose())) |
1499 | opts->verbose = 1; | |
1500 | ||
ca6c6b45 JS |
1501 | read_strategy_opts(opts, &buf); |
1502 | strbuf_release(&buf); | |
1503 | ||
b5a67045 | 1504 | return 0; |
a1c75762 | 1505 | } |
b5a67045 | 1506 | |
f932729c | 1507 | if (!file_exists(git_path_opts_file())) |
0d00da7b JS |
1508 | return 0; |
1509 | /* | |
1510 | * The function git_parse_source(), called from git_config_from_file(), | |
1511 | * may die() in case of a syntactically incorrect file. We do not care | |
1512 | * about this case, though, because we wrote that file ourselves, so we | |
1513 | * are pretty certain that it is syntactically correct. | |
1514 | */ | |
5adf9bdc | 1515 | if (git_config_from_file(populate_opts_cb, git_path_opts_file(), opts) < 0) |
93b3df6f | 1516 | return error(_("malformed options sheet: '%s'"), |
0d00da7b JS |
1517 | git_path_opts_file()); |
1518 | return 0; | |
043a4492 RR |
1519 | } |
1520 | ||
004fefa7 | 1521 | static int walk_revs_populate_todo(struct todo_list *todo_list, |
043a4492 RR |
1522 | struct replay_opts *opts) |
1523 | { | |
004fefa7 JS |
1524 | enum todo_command command = opts->action == REPLAY_PICK ? |
1525 | TODO_PICK : TODO_REVERT; | |
414697a9 | 1526 | const char *command_string = todo_command_info[command].str; |
043a4492 | 1527 | struct commit *commit; |
043a4492 | 1528 | |
34b0528b JS |
1529 | if (prepare_revs(opts)) |
1530 | return -1; | |
043a4492 | 1531 | |
004fefa7 JS |
1532 | while ((commit = get_revision(opts->revs))) { |
1533 | struct todo_item *item = append_new_todo(todo_list); | |
1534 | const char *commit_buffer = get_commit_buffer(commit, NULL); | |
1535 | const char *subject; | |
1536 | int subject_len; | |
1537 | ||
1538 | item->command = command; | |
1539 | item->commit = commit; | |
c22f7dfb JS |
1540 | item->arg = NULL; |
1541 | item->arg_len = 0; | |
004fefa7 JS |
1542 | item->offset_in_buf = todo_list->buf.len; |
1543 | subject_len = find_commit_subject(commit_buffer, &subject); | |
1544 | strbuf_addf(&todo_list->buf, "%s %s %.*s\n", command_string, | |
1545 | short_commit_name(commit), subject_len, subject); | |
1546 | unuse_commit_buffer(commit, commit_buffer); | |
1547 | } | |
34b0528b | 1548 | return 0; |
043a4492 RR |
1549 | } |
1550 | ||
1551 | static int create_seq_dir(void) | |
1552 | { | |
f932729c | 1553 | if (file_exists(git_path_seq_dir())) { |
043a4492 RR |
1554 | error(_("a cherry-pick or revert is already in progress")); |
1555 | advise(_("try \"git cherry-pick (--continue | --quit | --abort)\"")); | |
1556 | return -1; | |
a70d8f80 | 1557 | } else if (mkdir(git_path_seq_dir(), 0777) < 0) |
93b3df6f | 1558 | return error_errno(_("could not create sequencer directory '%s'"), |
f6e82b0d | 1559 | git_path_seq_dir()); |
043a4492 RR |
1560 | return 0; |
1561 | } | |
1562 | ||
311fd397 | 1563 | static int save_head(const char *head) |
043a4492 | 1564 | { |
043a4492 RR |
1565 | static struct lock_file head_lock; |
1566 | struct strbuf buf = STRBUF_INIT; | |
1567 | int fd; | |
ed3f9a12 | 1568 | ssize_t written; |
043a4492 | 1569 | |
311fd397 JS |
1570 | fd = hold_lock_file_for_update(&head_lock, git_path_head_file(), 0); |
1571 | if (fd < 0) { | |
1572 | rollback_lock_file(&head_lock); | |
93b3df6f | 1573 | return error_errno(_("could not lock HEAD")); |
311fd397 | 1574 | } |
043a4492 | 1575 | strbuf_addf(&buf, "%s\n", head); |
ed3f9a12 RS |
1576 | written = write_in_full(fd, buf.buf, buf.len); |
1577 | strbuf_release(&buf); | |
1578 | if (written < 0) { | |
311fd397 | 1579 | rollback_lock_file(&head_lock); |
93b3df6f | 1580 | return error_errno(_("could not write to '%s'"), |
311fd397 JS |
1581 | git_path_head_file()); |
1582 | } | |
1583 | if (commit_lock_file(&head_lock) < 0) { | |
1584 | rollback_lock_file(&head_lock); | |
93b3df6f | 1585 | return error(_("failed to finalize '%s'."), git_path_head_file()); |
311fd397 JS |
1586 | } |
1587 | return 0; | |
043a4492 RR |
1588 | } |
1589 | ||
1e41229d SB |
1590 | static int rollback_is_safe(void) |
1591 | { | |
1592 | struct strbuf sb = STRBUF_INIT; | |
1593 | struct object_id expected_head, actual_head; | |
1594 | ||
1595 | if (strbuf_read_file(&sb, git_path_abort_safety_file(), 0) >= 0) { | |
1596 | strbuf_trim(&sb); | |
1597 | if (get_oid_hex(sb.buf, &expected_head)) { | |
1598 | strbuf_release(&sb); | |
1599 | die(_("could not parse %s"), git_path_abort_safety_file()); | |
1600 | } | |
1601 | strbuf_release(&sb); | |
1602 | } | |
1603 | else if (errno == ENOENT) | |
1604 | oidclr(&expected_head); | |
1605 | else | |
1606 | die_errno(_("could not read '%s'"), git_path_abort_safety_file()); | |
1607 | ||
1608 | if (get_oid("HEAD", &actual_head)) | |
1609 | oidclr(&actual_head); | |
1610 | ||
1611 | return !oidcmp(&actual_head, &expected_head); | |
1612 | } | |
1613 | ||
092bbcdf | 1614 | static int reset_for_rollback(const struct object_id *oid) |
043a4492 RR |
1615 | { |
1616 | const char *argv[4]; /* reset --merge <arg> + NULL */ | |
1e41229d | 1617 | |
043a4492 RR |
1618 | argv[0] = "reset"; |
1619 | argv[1] = "--merge"; | |
092bbcdf | 1620 | argv[2] = oid_to_hex(oid); |
043a4492 RR |
1621 | argv[3] = NULL; |
1622 | return run_command_v_opt(argv, RUN_GIT_CMD); | |
1623 | } | |
1624 | ||
1625 | static int rollback_single_pick(void) | |
1626 | { | |
092bbcdf | 1627 | struct object_id head_oid; |
043a4492 | 1628 | |
f932729c JK |
1629 | if (!file_exists(git_path_cherry_pick_head()) && |
1630 | !file_exists(git_path_revert_head())) | |
043a4492 | 1631 | return error(_("no cherry-pick or revert in progress")); |
092bbcdf | 1632 | if (read_ref_full("HEAD", 0, head_oid.hash, NULL)) |
043a4492 | 1633 | return error(_("cannot resolve HEAD")); |
092bbcdf | 1634 | if (is_null_oid(&head_oid)) |
043a4492 | 1635 | return error(_("cannot abort from a branch yet to be born")); |
092bbcdf | 1636 | return reset_for_rollback(&head_oid); |
043a4492 RR |
1637 | } |
1638 | ||
2863584f | 1639 | int sequencer_rollback(struct replay_opts *opts) |
043a4492 | 1640 | { |
043a4492 | 1641 | FILE *f; |
092bbcdf | 1642 | struct object_id oid; |
043a4492 | 1643 | struct strbuf buf = STRBUF_INIT; |
092bbcdf | 1644 | const char *p; |
043a4492 | 1645 | |
f932729c | 1646 | f = fopen(git_path_head_file(), "r"); |
043a4492 RR |
1647 | if (!f && errno == ENOENT) { |
1648 | /* | |
1649 | * There is no multiple-cherry-pick in progress. | |
1650 | * If CHERRY_PICK_HEAD or REVERT_HEAD indicates | |
1651 | * a single-cherry-pick in progress, abort that. | |
1652 | */ | |
1653 | return rollback_single_pick(); | |
1654 | } | |
1655 | if (!f) | |
f7ed1953 | 1656 | return error_errno(_("cannot open '%s'"), git_path_head_file()); |
8f309aeb | 1657 | if (strbuf_getline_lf(&buf, f)) { |
f7ed1953 | 1658 | error(_("cannot read '%s': %s"), git_path_head_file(), |
f932729c | 1659 | ferror(f) ? strerror(errno) : _("unexpected end of file")); |
043a4492 RR |
1660 | fclose(f); |
1661 | goto fail; | |
1662 | } | |
1663 | fclose(f); | |
092bbcdf | 1664 | if (parse_oid_hex(buf.buf, &oid, &p) || *p != '\0') { |
043a4492 | 1665 | error(_("stored pre-cherry-pick HEAD file '%s' is corrupt"), |
f932729c | 1666 | git_path_head_file()); |
043a4492 RR |
1667 | goto fail; |
1668 | } | |
092bbcdf | 1669 | if (is_null_oid(&oid)) { |
0f974e21 MG |
1670 | error(_("cannot abort from a branch yet to be born")); |
1671 | goto fail; | |
1672 | } | |
1e41229d SB |
1673 | |
1674 | if (!rollback_is_safe()) { | |
1675 | /* Do not error, just do not rollback */ | |
1676 | warning(_("You seem to have moved HEAD. " | |
1677 | "Not rewinding, check your HEAD!")); | |
1678 | } else | |
092bbcdf | 1679 | if (reset_for_rollback(&oid)) |
043a4492 | 1680 | goto fail; |
043a4492 | 1681 | strbuf_release(&buf); |
2863584f | 1682 | return sequencer_remove_state(opts); |
043a4492 RR |
1683 | fail: |
1684 | strbuf_release(&buf); | |
1685 | return -1; | |
1686 | } | |
1687 | ||
004fefa7 | 1688 | static int save_todo(struct todo_list *todo_list, struct replay_opts *opts) |
043a4492 | 1689 | { |
043a4492 | 1690 | static struct lock_file todo_lock; |
004fefa7 JS |
1691 | const char *todo_path = get_todo_path(opts); |
1692 | int next = todo_list->current, offset, fd; | |
043a4492 | 1693 | |
84583957 JS |
1694 | /* |
1695 | * rebase -i writes "git-rebase-todo" without the currently executing | |
1696 | * command, appending it to "done" instead. | |
1697 | */ | |
1698 | if (is_rebase_i(opts)) | |
1699 | next++; | |
1700 | ||
004fefa7 | 1701 | fd = hold_lock_file_for_update(&todo_lock, todo_path, 0); |
221675de | 1702 | if (fd < 0) |
93b3df6f | 1703 | return error_errno(_("could not lock '%s'"), todo_path); |
004fefa7 JS |
1704 | offset = next < todo_list->nr ? |
1705 | todo_list->items[next].offset_in_buf : todo_list->buf.len; | |
1706 | if (write_in_full(fd, todo_list->buf.buf + offset, | |
1707 | todo_list->buf.len - offset) < 0) | |
93b3df6f | 1708 | return error_errno(_("could not write to '%s'"), todo_path); |
004fefa7 | 1709 | if (commit_lock_file(&todo_lock) < 0) |
93b3df6f | 1710 | return error(_("failed to finalize '%s'."), todo_path); |
1df6df0c JS |
1711 | |
1712 | if (is_rebase_i(opts)) { | |
1713 | const char *done_path = rebase_path_done(); | |
1714 | int fd = open(done_path, O_CREAT | O_WRONLY | O_APPEND, 0666); | |
1715 | int prev_offset = !next ? 0 : | |
1716 | todo_list->items[next - 1].offset_in_buf; | |
1717 | ||
1718 | if (fd >= 0 && offset > prev_offset && | |
1719 | write_in_full(fd, todo_list->buf.buf + prev_offset, | |
1720 | offset - prev_offset) < 0) { | |
1721 | close(fd); | |
1722 | return error_errno(_("could not write to '%s'"), | |
1723 | done_path); | |
1724 | } | |
1725 | if (fd >= 0) | |
1726 | close(fd); | |
1727 | } | |
221675de | 1728 | return 0; |
043a4492 RR |
1729 | } |
1730 | ||
88d5a271 | 1731 | static int save_opts(struct replay_opts *opts) |
043a4492 | 1732 | { |
f932729c | 1733 | const char *opts_file = git_path_opts_file(); |
88d5a271 | 1734 | int res = 0; |
043a4492 RR |
1735 | |
1736 | if (opts->no_commit) | |
88d5a271 | 1737 | res |= git_config_set_in_file_gently(opts_file, "options.no-commit", "true"); |
043a4492 | 1738 | if (opts->edit) |
88d5a271 | 1739 | res |= git_config_set_in_file_gently(opts_file, "options.edit", "true"); |
043a4492 | 1740 | if (opts->signoff) |
88d5a271 | 1741 | res |= git_config_set_in_file_gently(opts_file, "options.signoff", "true"); |
043a4492 | 1742 | if (opts->record_origin) |
88d5a271 | 1743 | res |= git_config_set_in_file_gently(opts_file, "options.record-origin", "true"); |
043a4492 | 1744 | if (opts->allow_ff) |
88d5a271 | 1745 | res |= git_config_set_in_file_gently(opts_file, "options.allow-ff", "true"); |
043a4492 RR |
1746 | if (opts->mainline) { |
1747 | struct strbuf buf = STRBUF_INIT; | |
1748 | strbuf_addf(&buf, "%d", opts->mainline); | |
88d5a271 | 1749 | res |= git_config_set_in_file_gently(opts_file, "options.mainline", buf.buf); |
043a4492 RR |
1750 | strbuf_release(&buf); |
1751 | } | |
1752 | if (opts->strategy) | |
88d5a271 | 1753 | res |= git_config_set_in_file_gently(opts_file, "options.strategy", opts->strategy); |
3253553e | 1754 | if (opts->gpg_sign) |
88d5a271 | 1755 | res |= git_config_set_in_file_gently(opts_file, "options.gpg-sign", opts->gpg_sign); |
043a4492 RR |
1756 | if (opts->xopts) { |
1757 | int i; | |
1758 | for (i = 0; i < opts->xopts_nr; i++) | |
88d5a271 | 1759 | res |= git_config_set_multivar_in_file_gently(opts_file, |
043a4492 RR |
1760 | "options.strategy-option", |
1761 | opts->xopts[i], "^$", 0); | |
1762 | } | |
8d8cb4b0 PW |
1763 | if (opts->allow_rerere_auto) |
1764 | res |= git_config_set_in_file_gently(opts_file, "options.allow-rerere-auto", | |
1765 | opts->allow_rerere_auto == RERERE_AUTOUPDATE ? | |
1766 | "true" : "false"); | |
88d5a271 | 1767 | return res; |
043a4492 RR |
1768 | } |
1769 | ||
56dc3ab0 JS |
1770 | static int make_patch(struct commit *commit, struct replay_opts *opts) |
1771 | { | |
1772 | struct strbuf buf = STRBUF_INIT; | |
1773 | struct rev_info log_tree_opt; | |
1774 | const char *subject, *p; | |
1775 | int res = 0; | |
1776 | ||
1777 | p = short_commit_name(commit); | |
1778 | if (write_message(p, strlen(p), rebase_path_stopped_sha(), 1) < 0) | |
1779 | return -1; | |
1780 | ||
1781 | strbuf_addf(&buf, "%s/patch", get_dir(opts)); | |
1782 | memset(&log_tree_opt, 0, sizeof(log_tree_opt)); | |
1783 | init_revisions(&log_tree_opt, NULL); | |
1784 | log_tree_opt.abbrev = 0; | |
1785 | log_tree_opt.diff = 1; | |
1786 | log_tree_opt.diffopt.output_format = DIFF_FORMAT_PATCH; | |
1787 | log_tree_opt.disable_stdin = 1; | |
1788 | log_tree_opt.no_commit_id = 1; | |
1789 | log_tree_opt.diffopt.file = fopen(buf.buf, "w"); | |
1790 | log_tree_opt.diffopt.use_color = GIT_COLOR_NEVER; | |
1791 | if (!log_tree_opt.diffopt.file) | |
1792 | res |= error_errno(_("could not open '%s'"), buf.buf); | |
1793 | else { | |
1794 | res |= log_tree_commit(&log_tree_opt, commit); | |
1795 | fclose(log_tree_opt.diffopt.file); | |
1796 | } | |
1797 | strbuf_reset(&buf); | |
1798 | ||
1799 | strbuf_addf(&buf, "%s/message", get_dir(opts)); | |
1800 | if (!file_exists(buf.buf)) { | |
1801 | const char *commit_buffer = get_commit_buffer(commit, NULL); | |
1802 | find_commit_subject(commit_buffer, &subject); | |
1803 | res |= write_message(subject, strlen(subject), buf.buf, 1); | |
1804 | unuse_commit_buffer(commit, commit_buffer); | |
1805 | } | |
1806 | strbuf_release(&buf); | |
1807 | ||
1808 | return res; | |
1809 | } | |
1810 | ||
1811 | static int intend_to_amend(void) | |
1812 | { | |
092bbcdf | 1813 | struct object_id head; |
56dc3ab0 JS |
1814 | char *p; |
1815 | ||
092bbcdf | 1816 | if (get_oid("HEAD", &head)) |
56dc3ab0 JS |
1817 | return error(_("cannot read HEAD")); |
1818 | ||
092bbcdf | 1819 | p = oid_to_hex(&head); |
56dc3ab0 JS |
1820 | return write_message(p, strlen(p), rebase_path_amend(), 1); |
1821 | } | |
1822 | ||
1823 | static int error_with_patch(struct commit *commit, | |
1824 | const char *subject, int subject_len, | |
1825 | struct replay_opts *opts, int exit_code, int to_amend) | |
1826 | { | |
1827 | if (make_patch(commit, opts)) | |
1828 | return -1; | |
1829 | ||
1830 | if (to_amend) { | |
1831 | if (intend_to_amend()) | |
1832 | return -1; | |
1833 | ||
1834 | fprintf(stderr, "You can amend the commit now, with\n" | |
1835 | "\n" | |
1836 | " git commit --amend %s\n" | |
1837 | "\n" | |
1838 | "Once you are satisfied with your changes, run\n" | |
1839 | "\n" | |
1840 | " git rebase --continue\n", gpg_sign_opt_quoted(opts)); | |
1841 | } else if (exit_code) | |
1842 | fprintf(stderr, "Could not apply %s... %.*s\n", | |
1843 | short_commit_name(commit), subject_len, subject); | |
1844 | ||
1845 | return exit_code; | |
1846 | } | |
1847 | ||
6e98de72 JS |
1848 | static int error_failed_squash(struct commit *commit, |
1849 | struct replay_opts *opts, int subject_len, const char *subject) | |
1850 | { | |
1851 | if (rename(rebase_path_squash_msg(), rebase_path_message())) | |
1852 | return error(_("could not rename '%s' to '%s'"), | |
1853 | rebase_path_squash_msg(), rebase_path_message()); | |
1854 | unlink(rebase_path_fixup_msg()); | |
ca03e067 JK |
1855 | unlink(git_path_merge_msg()); |
1856 | if (copy_file(git_path_merge_msg(), rebase_path_message(), 0666)) | |
6e98de72 | 1857 | return error(_("could not copy '%s' to '%s'"), |
ca03e067 | 1858 | rebase_path_message(), git_path_merge_msg()); |
6e98de72 JS |
1859 | return error_with_patch(commit, subject, subject_len, opts, 1, 0); |
1860 | } | |
1861 | ||
311af526 JS |
1862 | static int do_exec(const char *command_line) |
1863 | { | |
1864 | const char *child_argv[] = { NULL, NULL }; | |
1865 | int dirty, status; | |
1866 | ||
1867 | fprintf(stderr, "Executing: %s\n", command_line); | |
1868 | child_argv[0] = command_line; | |
1869 | status = run_command_v_opt(child_argv, RUN_USING_SHELL); | |
1870 | ||
1871 | /* force re-reading of the cache */ | |
1872 | if (discard_cache() < 0 || read_cache() < 0) | |
1873 | return error(_("could not read index")); | |
1874 | ||
1875 | dirty = require_clean_work_tree("rebase", NULL, 1, 1); | |
1876 | ||
1877 | if (status) { | |
1878 | warning(_("execution failed: %s\n%s" | |
1879 | "You can fix the problem, and then run\n" | |
1880 | "\n" | |
1881 | " git rebase --continue\n" | |
1882 | "\n"), | |
1883 | command_line, | |
1884 | dirty ? N_("and made changes to the index and/or the " | |
1885 | "working tree\n") : ""); | |
1886 | if (status == 127) | |
1887 | /* command not found */ | |
1888 | status = 1; | |
1889 | } else if (dirty) { | |
1890 | warning(_("execution succeeded: %s\nbut " | |
1891 | "left changes to the index and/or the working tree\n" | |
1892 | "Commit or stash your changes, and then run\n" | |
1893 | "\n" | |
1894 | " git rebase --continue\n" | |
1895 | "\n"), command_line); | |
1896 | status = 1; | |
1897 | } | |
1898 | ||
1899 | return status; | |
1900 | } | |
1901 | ||
6e98de72 JS |
1902 | static int is_final_fixup(struct todo_list *todo_list) |
1903 | { | |
1904 | int i = todo_list->current; | |
1905 | ||
1906 | if (!is_fixup(todo_list->items[i].command)) | |
1907 | return 0; | |
1908 | ||
1909 | while (++i < todo_list->nr) | |
1910 | if (is_fixup(todo_list->items[i].command)) | |
1911 | return 0; | |
1912 | else if (!is_noop(todo_list->items[i].command)) | |
1913 | break; | |
1914 | return 1; | |
1915 | } | |
1916 | ||
25cb8df9 JS |
1917 | static enum todo_command peek_command(struct todo_list *todo_list, int offset) |
1918 | { | |
1919 | int i; | |
1920 | ||
1921 | for (i = todo_list->current + offset; i < todo_list->nr; i++) | |
1922 | if (!is_noop(todo_list->items[i].command)) | |
1923 | return todo_list->items[i].command; | |
1924 | ||
1925 | return -1; | |
1926 | } | |
1927 | ||
796c7972 JS |
1928 | static int apply_autostash(struct replay_opts *opts) |
1929 | { | |
1930 | struct strbuf stash_sha1 = STRBUF_INIT; | |
1931 | struct child_process child = CHILD_PROCESS_INIT; | |
1932 | int ret = 0; | |
1933 | ||
1934 | if (!read_oneliner(&stash_sha1, rebase_path_autostash(), 1)) { | |
1935 | strbuf_release(&stash_sha1); | |
1936 | return 0; | |
1937 | } | |
1938 | strbuf_trim(&stash_sha1); | |
1939 | ||
1940 | child.git_cmd = 1; | |
79a62269 PW |
1941 | child.no_stdout = 1; |
1942 | child.no_stderr = 1; | |
796c7972 JS |
1943 | argv_array_push(&child.args, "stash"); |
1944 | argv_array_push(&child.args, "apply"); | |
1945 | argv_array_push(&child.args, stash_sha1.buf); | |
1946 | if (!run_command(&child)) | |
cdb866b3 | 1947 | fprintf(stderr, _("Applied autostash.\n")); |
796c7972 JS |
1948 | else { |
1949 | struct child_process store = CHILD_PROCESS_INIT; | |
1950 | ||
1951 | store.git_cmd = 1; | |
1952 | argv_array_push(&store.args, "stash"); | |
1953 | argv_array_push(&store.args, "store"); | |
1954 | argv_array_push(&store.args, "-m"); | |
1955 | argv_array_push(&store.args, "autostash"); | |
1956 | argv_array_push(&store.args, "-q"); | |
1957 | argv_array_push(&store.args, stash_sha1.buf); | |
1958 | if (run_command(&store)) | |
1959 | ret = error(_("cannot store %s"), stash_sha1.buf); | |
1960 | else | |
cdb866b3 JS |
1961 | fprintf(stderr, |
1962 | _("Applying autostash resulted in conflicts.\n" | |
1963 | "Your changes are safe in the stash.\n" | |
1964 | "You can run \"git stash pop\" or" | |
1965 | " \"git stash drop\" at any time.\n")); | |
796c7972 JS |
1966 | } |
1967 | ||
1968 | strbuf_release(&stash_sha1); | |
1969 | return ret; | |
1970 | } | |
1971 | ||
96e832a5 JS |
1972 | static const char *reflog_message(struct replay_opts *opts, |
1973 | const char *sub_action, const char *fmt, ...) | |
1974 | { | |
1975 | va_list ap; | |
1976 | static struct strbuf buf = STRBUF_INIT; | |
1977 | ||
1978 | va_start(ap, fmt); | |
1979 | strbuf_reset(&buf); | |
1980 | strbuf_addstr(&buf, action_name(opts)); | |
1981 | if (sub_action) | |
1982 | strbuf_addf(&buf, " (%s)", sub_action); | |
1983 | if (fmt) { | |
1984 | strbuf_addstr(&buf, ": "); | |
1985 | strbuf_vaddf(&buf, fmt, ap); | |
1986 | } | |
1987 | va_end(ap); | |
1988 | ||
1989 | return buf.buf; | |
1990 | } | |
1991 | ||
004fefa7 | 1992 | static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts) |
043a4492 | 1993 | { |
56dc3ab0 | 1994 | int res = 0; |
043a4492 RR |
1995 | |
1996 | setenv(GIT_REFLOG_ACTION, action_name(opts), 0); | |
1997 | if (opts->allow_ff) | |
1998 | assert(!(opts->signoff || opts->no_commit || | |
1999 | opts->record_origin || opts->edit)); | |
0d9c6dc9 JS |
2000 | if (read_and_refresh_cache(opts)) |
2001 | return -1; | |
043a4492 | 2002 | |
004fefa7 JS |
2003 | while (todo_list->current < todo_list->nr) { |
2004 | struct todo_item *item = todo_list->items + todo_list->current; | |
2005 | if (save_todo(todo_list, opts)) | |
221675de | 2006 | return -1; |
6e98de72 | 2007 | if (is_rebase_i(opts)) { |
ef80069a JS |
2008 | if (item->command != TODO_COMMENT) { |
2009 | FILE *f = fopen(rebase_path_msgnum(), "w"); | |
2010 | ||
2011 | todo_list->done_nr++; | |
2012 | ||
2013 | if (f) { | |
2014 | fprintf(f, "%d\n", todo_list->done_nr); | |
2015 | fclose(f); | |
2016 | } | |
968492e4 | 2017 | fprintf(stderr, "Rebasing (%d/%d)%s", |
ef80069a | 2018 | todo_list->done_nr, |
968492e4 JS |
2019 | todo_list->total_nr, |
2020 | opts->verbose ? "\n" : "\r"); | |
ef80069a | 2021 | } |
6e98de72 JS |
2022 | unlink(rebase_path_message()); |
2023 | unlink(rebase_path_author_script()); | |
2024 | unlink(rebase_path_stopped_sha()); | |
2025 | unlink(rebase_path_amend()); | |
2026 | } | |
2027 | if (item->command <= TODO_SQUASH) { | |
8ab37ef2 JS |
2028 | if (is_rebase_i(opts)) |
2029 | setenv("GIT_REFLOG_ACTION", reflog_message(opts, | |
2030 | command_to_string(item->command), NULL), | |
2031 | 1); | |
25c43667 | 2032 | res = do_pick_commit(item->command, item->commit, |
6e98de72 | 2033 | opts, is_final_fixup(todo_list)); |
9d7bf3cf JS |
2034 | if (is_rebase_i(opts) && res < 0) { |
2035 | /* Reschedule */ | |
2036 | todo_list->current--; | |
2037 | if (save_todo(todo_list, opts)) | |
2038 | return -1; | |
2039 | } | |
56dc3ab0 JS |
2040 | if (item->command == TODO_EDIT) { |
2041 | struct commit *commit = item->commit; | |
2042 | if (!res) | |
99429213 | 2043 | fprintf(stderr, |
a42e1b41 | 2044 | _("Stopped at %s... %.*s\n"), |
56dc3ab0 JS |
2045 | short_commit_name(commit), |
2046 | item->arg_len, item->arg); | |
2047 | return error_with_patch(commit, | |
2048 | item->arg, item->arg_len, opts, res, | |
2049 | !res); | |
2050 | } | |
25cb8df9 JS |
2051 | if (is_rebase_i(opts) && !res) |
2052 | record_in_rewritten(&item->commit->object.oid, | |
2053 | peek_command(todo_list, 1)); | |
6e98de72 JS |
2054 | if (res && is_fixup(item->command)) { |
2055 | if (res == 1) | |
2056 | intend_to_amend(); | |
2057 | return error_failed_squash(item->commit, opts, | |
2058 | item->arg_len, item->arg); | |
4a5146f9 JS |
2059 | } else if (res && is_rebase_i(opts)) |
2060 | return res | error_with_patch(item->commit, | |
04efc8b5 JS |
2061 | item->arg, item->arg_len, opts, res, |
2062 | item->command == TODO_REWORD); | |
311af526 JS |
2063 | } else if (item->command == TODO_EXEC) { |
2064 | char *end_of_arg = (char *)(item->arg + item->arg_len); | |
2065 | int saved = *end_of_arg; | |
54fd3243 | 2066 | struct stat st; |
311af526 JS |
2067 | |
2068 | *end_of_arg = '\0'; | |
2069 | res = do_exec(item->arg); | |
2070 | *end_of_arg = saved; | |
54fd3243 SH |
2071 | |
2072 | /* Reread the todo file if it has changed. */ | |
2073 | if (res) | |
2074 | ; /* fall through */ | |
2075 | else if (stat(get_todo_path(opts), &st)) | |
2076 | res = error_errno(_("could not stat '%s'"), | |
2077 | get_todo_path(opts)); | |
2078 | else if (match_stat_data(&todo_list->stat, &st)) { | |
2079 | todo_list_release(todo_list); | |
2080 | if (read_populate_todo(todo_list, opts)) | |
2081 | res = -1; /* message was printed */ | |
2082 | /* `current` will be incremented below */ | |
2083 | todo_list->current = -1; | |
2084 | } | |
56dc3ab0 | 2085 | } else if (!is_noop(item->command)) |
25c43667 JS |
2086 | return error(_("unknown command %d"), item->command); |
2087 | ||
004fefa7 | 2088 | todo_list->current++; |
043a4492 RR |
2089 | if (res) |
2090 | return res; | |
2091 | } | |
2092 | ||
56dc3ab0 | 2093 | if (is_rebase_i(opts)) { |
4b83ce9f | 2094 | struct strbuf head_ref = STRBUF_INIT, buf = STRBUF_INIT; |
25cb8df9 | 2095 | struct stat st; |
556907f1 | 2096 | |
56dc3ab0 JS |
2097 | /* Stopped in the middle, as planned? */ |
2098 | if (todo_list->current < todo_list->nr) | |
2099 | return 0; | |
556907f1 | 2100 | |
4b83ce9f JS |
2101 | if (read_oneliner(&head_ref, rebase_path_head_name(), 0) && |
2102 | starts_with(head_ref.buf, "refs/")) { | |
96e832a5 | 2103 | const char *msg; |
092bbcdf | 2104 | struct object_id head, orig; |
4b83ce9f JS |
2105 | int res; |
2106 | ||
092bbcdf | 2107 | if (get_oid("HEAD", &head)) { |
4b83ce9f JS |
2108 | res = error(_("cannot read HEAD")); |
2109 | cleanup_head_ref: | |
2110 | strbuf_release(&head_ref); | |
2111 | strbuf_release(&buf); | |
2112 | return res; | |
2113 | } | |
2114 | if (!read_oneliner(&buf, rebase_path_orig_head(), 0) || | |
092bbcdf | 2115 | get_oid_hex(buf.buf, &orig)) { |
4b83ce9f JS |
2116 | res = error(_("could not read orig-head")); |
2117 | goto cleanup_head_ref; | |
2118 | } | |
4ab867b8 | 2119 | strbuf_reset(&buf); |
4b83ce9f JS |
2120 | if (!read_oneliner(&buf, rebase_path_onto(), 0)) { |
2121 | res = error(_("could not read 'onto'")); | |
2122 | goto cleanup_head_ref; | |
2123 | } | |
96e832a5 JS |
2124 | msg = reflog_message(opts, "finish", "%s onto %s", |
2125 | head_ref.buf, buf.buf); | |
092bbcdf | 2126 | if (update_ref(msg, head_ref.buf, head.hash, orig.hash, |
4b83ce9f JS |
2127 | REF_NODEREF, UPDATE_REFS_MSG_ON_ERR)) { |
2128 | res = error(_("could not update %s"), | |
2129 | head_ref.buf); | |
2130 | goto cleanup_head_ref; | |
2131 | } | |
96e832a5 | 2132 | msg = reflog_message(opts, "finish", "returning to %s", |
4b83ce9f | 2133 | head_ref.buf); |
96e832a5 | 2134 | if (create_symref("HEAD", head_ref.buf, msg)) { |
4b83ce9f JS |
2135 | res = error(_("could not update HEAD to %s"), |
2136 | head_ref.buf); | |
2137 | goto cleanup_head_ref; | |
2138 | } | |
2139 | strbuf_reset(&buf); | |
2140 | } | |
2141 | ||
556907f1 JS |
2142 | if (opts->verbose) { |
2143 | struct rev_info log_tree_opt; | |
2144 | struct object_id orig, head; | |
2145 | ||
2146 | memset(&log_tree_opt, 0, sizeof(log_tree_opt)); | |
2147 | init_revisions(&log_tree_opt, NULL); | |
2148 | log_tree_opt.diff = 1; | |
2149 | log_tree_opt.diffopt.output_format = | |
2150 | DIFF_FORMAT_DIFFSTAT; | |
2151 | log_tree_opt.disable_stdin = 1; | |
2152 | ||
2153 | if (read_oneliner(&buf, rebase_path_orig_head(), 0) && | |
e82caf38 | 2154 | !get_oid(buf.buf, &orig) && |
2155 | !get_oid("HEAD", &head)) { | |
66f414f8 BW |
2156 | diff_tree_oid(&orig, &head, "", |
2157 | &log_tree_opt.diffopt); | |
556907f1 JS |
2158 | log_tree_diff_flush(&log_tree_opt); |
2159 | } | |
2160 | } | |
25cb8df9 JS |
2161 | flush_rewritten_pending(); |
2162 | if (!stat(rebase_path_rewritten_list(), &st) && | |
2163 | st.st_size > 0) { | |
2164 | struct child_process child = CHILD_PROCESS_INIT; | |
79516045 JS |
2165 | const char *post_rewrite_hook = |
2166 | find_hook("post-rewrite"); | |
25cb8df9 JS |
2167 | |
2168 | child.in = open(rebase_path_rewritten_list(), O_RDONLY); | |
2169 | child.git_cmd = 1; | |
2170 | argv_array_push(&child.args, "notes"); | |
2171 | argv_array_push(&child.args, "copy"); | |
2172 | argv_array_push(&child.args, "--for-rewrite=rebase"); | |
2173 | /* we don't care if this copying failed */ | |
2174 | run_command(&child); | |
79516045 JS |
2175 | |
2176 | if (post_rewrite_hook) { | |
2177 | struct child_process hook = CHILD_PROCESS_INIT; | |
2178 | ||
2179 | hook.in = open(rebase_path_rewritten_list(), | |
2180 | O_RDONLY); | |
2181 | hook.stdout_to_stderr = 1; | |
2182 | argv_array_push(&hook.args, post_rewrite_hook); | |
2183 | argv_array_push(&hook.args, "rebase"); | |
2184 | /* we don't care if this hook failed */ | |
2185 | run_command(&hook); | |
2186 | } | |
25cb8df9 | 2187 | } |
796c7972 | 2188 | apply_autostash(opts); |
25cb8df9 | 2189 | |
5da4966f JS |
2190 | fprintf(stderr, "Successfully rebased and updated %s.\n", |
2191 | head_ref.buf); | |
2192 | ||
556907f1 | 2193 | strbuf_release(&buf); |
4b83ce9f | 2194 | strbuf_release(&head_ref); |
56dc3ab0 JS |
2195 | } |
2196 | ||
043a4492 RR |
2197 | /* |
2198 | * Sequence of picks finished successfully; cleanup by | |
2199 | * removing the .git/sequencer directory | |
2200 | */ | |
2863584f | 2201 | return sequencer_remove_state(opts); |
043a4492 RR |
2202 | } |
2203 | ||
2204 | static int continue_single_pick(void) | |
2205 | { | |
2206 | const char *argv[] = { "commit", NULL }; | |
2207 | ||
f932729c JK |
2208 | if (!file_exists(git_path_cherry_pick_head()) && |
2209 | !file_exists(git_path_revert_head())) | |
043a4492 RR |
2210 | return error(_("no cherry-pick or revert in progress")); |
2211 | return run_command_v_opt(argv, RUN_GIT_CMD); | |
2212 | } | |
2213 | ||
9d93ccd1 JS |
2214 | static int commit_staged_changes(struct replay_opts *opts) |
2215 | { | |
789b3eff | 2216 | unsigned int flags = ALLOW_EMPTY | EDIT_MSG; |
9d93ccd1 JS |
2217 | |
2218 | if (has_unstaged_changes(1)) | |
2219 | return error(_("cannot rebase: You have unstaged changes.")); | |
52632209 | 2220 | if (!has_uncommitted_changes(0)) { |
ca03e067 | 2221 | const char *cherry_pick_head = git_path_cherry_pick_head(); |
52632209 JS |
2222 | |
2223 | if (file_exists(cherry_pick_head) && unlink(cherry_pick_head)) | |
2224 | return error(_("could not remove CHERRY_PICK_HEAD")); | |
9d93ccd1 | 2225 | return 0; |
52632209 | 2226 | } |
9d93ccd1 JS |
2227 | |
2228 | if (file_exists(rebase_path_amend())) { | |
2229 | struct strbuf rev = STRBUF_INIT; | |
092bbcdf | 2230 | struct object_id head, to_amend; |
9d93ccd1 | 2231 | |
092bbcdf | 2232 | if (get_oid("HEAD", &head)) |
9d93ccd1 JS |
2233 | return error(_("cannot amend non-existing commit")); |
2234 | if (!read_oneliner(&rev, rebase_path_amend(), 0)) | |
2235 | return error(_("invalid file: '%s'"), rebase_path_amend()); | |
092bbcdf | 2236 | if (get_oid_hex(rev.buf, &to_amend)) |
9d93ccd1 JS |
2237 | return error(_("invalid contents: '%s'"), |
2238 | rebase_path_amend()); | |
092bbcdf | 2239 | if (oidcmp(&head, &to_amend)) |
9d93ccd1 JS |
2240 | return error(_("\nYou have uncommitted changes in your " |
2241 | "working tree. Please, commit them\n" | |
2242 | "first and then run 'git rebase " | |
2243 | "--continue' again.")); | |
2244 | ||
2245 | strbuf_release(&rev); | |
789b3eff | 2246 | flags |= AMEND_MSG; |
9d93ccd1 JS |
2247 | } |
2248 | ||
789b3eff | 2249 | if (run_git_commit(rebase_path_message(), opts, flags)) |
9d93ccd1 JS |
2250 | return error(_("could not commit staged changes.")); |
2251 | unlink(rebase_path_amend()); | |
2252 | return 0; | |
2253 | } | |
2254 | ||
2863584f | 2255 | int sequencer_continue(struct replay_opts *opts) |
043a4492 | 2256 | { |
004fefa7 JS |
2257 | struct todo_list todo_list = TODO_LIST_INIT; |
2258 | int res; | |
043a4492 | 2259 | |
2863584f JS |
2260 | if (read_and_refresh_cache(opts)) |
2261 | return -1; | |
2262 | ||
9d93ccd1 JS |
2263 | if (is_rebase_i(opts)) { |
2264 | if (commit_staged_changes(opts)) | |
2265 | return -1; | |
4258a6da | 2266 | } else if (!file_exists(get_todo_path(opts))) |
043a4492 | 2267 | return continue_single_pick(); |
004fefa7 | 2268 | if (read_populate_opts(opts)) |
0ae42a03 | 2269 | return -1; |
004fefa7 JS |
2270 | if ((res = read_populate_todo(&todo_list, opts))) |
2271 | goto release_todo_list; | |
043a4492 | 2272 | |
4258a6da JS |
2273 | if (!is_rebase_i(opts)) { |
2274 | /* Verify that the conflict has been resolved */ | |
2275 | if (file_exists(git_path_cherry_pick_head()) || | |
2276 | file_exists(git_path_revert_head())) { | |
2277 | res = continue_single_pick(); | |
2278 | if (res) | |
2279 | goto release_todo_list; | |
2280 | } | |
2281 | if (index_differs_from("HEAD", 0, 0)) { | |
2282 | res = error_dirty_index(opts); | |
004fefa7 | 2283 | goto release_todo_list; |
4258a6da JS |
2284 | } |
2285 | todo_list.current++; | |
ca98c6d4 JS |
2286 | } else if (file_exists(rebase_path_stopped_sha())) { |
2287 | struct strbuf buf = STRBUF_INIT; | |
2288 | struct object_id oid; | |
2289 | ||
2290 | if (read_oneliner(&buf, rebase_path_stopped_sha(), 1) && | |
e82caf38 | 2291 | !get_oid_committish(buf.buf, &oid)) |
ca98c6d4 JS |
2292 | record_in_rewritten(&oid, peek_command(&todo_list, 0)); |
2293 | strbuf_release(&buf); | |
043a4492 | 2294 | } |
4258a6da | 2295 | |
004fefa7 JS |
2296 | res = pick_commits(&todo_list, opts); |
2297 | release_todo_list: | |
2298 | todo_list_release(&todo_list); | |
2299 | return res; | |
043a4492 RR |
2300 | } |
2301 | ||
2302 | static int single_pick(struct commit *cmit, struct replay_opts *opts) | |
2303 | { | |
2304 | setenv(GIT_REFLOG_ACTION, action_name(opts), 0); | |
004fefa7 | 2305 | return do_pick_commit(opts->action == REPLAY_PICK ? |
6e98de72 | 2306 | TODO_PICK : TODO_REVERT, cmit, opts, 0); |
043a4492 RR |
2307 | } |
2308 | ||
2309 | int sequencer_pick_revisions(struct replay_opts *opts) | |
2310 | { | |
004fefa7 | 2311 | struct todo_list todo_list = TODO_LIST_INIT; |
1e43ed98 | 2312 | struct object_id oid; |
004fefa7 | 2313 | int i, res; |
043a4492 | 2314 | |
2863584f | 2315 | assert(opts->revs); |
0d9c6dc9 JS |
2316 | if (read_and_refresh_cache(opts)) |
2317 | return -1; | |
043a4492 | 2318 | |
21246dbb | 2319 | for (i = 0; i < opts->revs->pending.nr; i++) { |
1e43ed98 | 2320 | struct object_id oid; |
21246dbb MV |
2321 | const char *name = opts->revs->pending.objects[i].name; |
2322 | ||
2323 | /* This happens when using --stdin. */ | |
2324 | if (!strlen(name)) | |
2325 | continue; | |
2326 | ||
1e43ed98 | 2327 | if (!get_oid(name, &oid)) { |
bc83266a | 2328 | if (!lookup_commit_reference_gently(&oid, 1)) { |
1e43ed98 | 2329 | enum object_type type = sha1_object_info(oid.hash, NULL); |
b9b946d4 JS |
2330 | return error(_("%s: can't cherry-pick a %s"), |
2331 | name, typename(type)); | |
7c0b0d8d | 2332 | } |
21246dbb | 2333 | } else |
b9b946d4 | 2334 | return error(_("%s: bad revision"), name); |
21246dbb MV |
2335 | } |
2336 | ||
043a4492 RR |
2337 | /* |
2338 | * If we were called as "git cherry-pick <commit>", just | |
2339 | * cherry-pick/revert it, set CHERRY_PICK_HEAD / | |
2340 | * REVERT_HEAD, and don't touch the sequencer state. | |
2341 | * This means it is possible to cherry-pick in the middle | |
2342 | * of a cherry-pick sequence. | |
2343 | */ | |
2344 | if (opts->revs->cmdline.nr == 1 && | |
2345 | opts->revs->cmdline.rev->whence == REV_CMD_REV && | |
2346 | opts->revs->no_walk && | |
2347 | !opts->revs->cmdline.rev->flags) { | |
2348 | struct commit *cmit; | |
2349 | if (prepare_revision_walk(opts->revs)) | |
b9b946d4 | 2350 | return error(_("revision walk setup failed")); |
043a4492 RR |
2351 | cmit = get_revision(opts->revs); |
2352 | if (!cmit || get_revision(opts->revs)) | |
b9b946d4 | 2353 | return error("BUG: expected exactly one commit from walk"); |
043a4492 RR |
2354 | return single_pick(cmit, opts); |
2355 | } | |
2356 | ||
2357 | /* | |
2358 | * Start a new cherry-pick/ revert sequence; but | |
2359 | * first, make sure that an existing one isn't in | |
2360 | * progress | |
2361 | */ | |
2362 | ||
34b0528b JS |
2363 | if (walk_revs_populate_todo(&todo_list, opts) || |
2364 | create_seq_dir() < 0) | |
043a4492 | 2365 | return -1; |
1e43ed98 | 2366 | if (get_oid("HEAD", &oid) && (opts->action == REPLAY_REVERT)) |
93b3df6f | 2367 | return error(_("can't revert as initial commit")); |
1e43ed98 | 2368 | if (save_head(oid_to_hex(&oid))) |
311fd397 | 2369 | return -1; |
88d5a271 JS |
2370 | if (save_opts(opts)) |
2371 | return -1; | |
1e41229d | 2372 | update_abort_safety_file(); |
004fefa7 JS |
2373 | res = pick_commits(&todo_list, opts); |
2374 | todo_list_release(&todo_list); | |
2375 | return res; | |
043a4492 | 2376 | } |
5ed75e2a | 2377 | |
bab4d109 | 2378 | void append_signoff(struct strbuf *msgbuf, int ignore_footer, unsigned flag) |
5ed75e2a | 2379 | { |
bab4d109 | 2380 | unsigned no_dup_sob = flag & APPEND_SIGNOFF_DEDUP; |
5ed75e2a | 2381 | struct strbuf sob = STRBUF_INIT; |
bab4d109 | 2382 | int has_footer; |
5ed75e2a MV |
2383 | |
2384 | strbuf_addstr(&sob, sign_off_header); | |
2385 | strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"), | |
2386 | getenv("GIT_COMMITTER_EMAIL"))); | |
2387 | strbuf_addch(&sob, '\n'); | |
bab4d109 | 2388 | |
44dc738a JT |
2389 | if (!ignore_footer) |
2390 | strbuf_complete_line(msgbuf); | |
2391 | ||
bab4d109 BC |
2392 | /* |
2393 | * If the whole message buffer is equal to the sob, pretend that we | |
2394 | * found a conforming footer with a matching sob | |
2395 | */ | |
2396 | if (msgbuf->len - ignore_footer == sob.len && | |
2397 | !strncmp(msgbuf->buf, sob.buf, sob.len)) | |
2398 | has_footer = 3; | |
2399 | else | |
2400 | has_footer = has_conforming_footer(msgbuf, &sob, ignore_footer); | |
2401 | ||
33f2f9ab BC |
2402 | if (!has_footer) { |
2403 | const char *append_newlines = NULL; | |
2404 | size_t len = msgbuf->len - ignore_footer; | |
2405 | ||
8c613fd5 BC |
2406 | if (!len) { |
2407 | /* | |
2408 | * The buffer is completely empty. Leave foom for | |
2409 | * the title and body to be filled in by the user. | |
2410 | */ | |
33f2f9ab | 2411 | append_newlines = "\n\n"; |
8c613fd5 BC |
2412 | } else if (len == 1) { |
2413 | /* | |
2414 | * Buffer contains a single newline. Add another | |
2415 | * so that we leave room for the title and body. | |
2416 | */ | |
2417 | append_newlines = "\n"; | |
2418 | } else if (msgbuf->buf[len - 2] != '\n') { | |
2419 | /* | |
2420 | * Buffer ends with a single newline. Add another | |
2421 | * so that there is an empty line between the message | |
2422 | * body and the sob. | |
2423 | */ | |
33f2f9ab | 2424 | append_newlines = "\n"; |
8c613fd5 | 2425 | } /* else, the buffer already ends with two newlines. */ |
33f2f9ab BC |
2426 | |
2427 | if (append_newlines) | |
2428 | strbuf_splice(msgbuf, msgbuf->len - ignore_footer, 0, | |
2429 | append_newlines, strlen(append_newlines)); | |
5ed75e2a | 2430 | } |
bab4d109 BC |
2431 | |
2432 | if (has_footer != 3 && (!no_dup_sob || has_footer != 2)) | |
2433 | strbuf_splice(msgbuf, msgbuf->len - ignore_footer, 0, | |
2434 | sob.buf, sob.len); | |
2435 | ||
5ed75e2a MV |
2436 | strbuf_release(&sob); |
2437 | } |