]>
Commit | Line | Data |
---|---|---|
26ae337b | 1 | #include "cache.h" |
b2141fc1 | 2 | #include "config.h" |
697cc8ef | 3 | #include "lockfile.h" |
26ae337b | 4 | #include "dir.h" |
043a4492 RR |
5 | #include "object.h" |
6 | #include "commit.h" | |
0505d604 | 7 | #include "sequencer.h" |
043a4492 RR |
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" |
c44a4c65 | 23 | #include "hashmap.h" |
a87a6f3c PW |
24 | #include "notes-utils.h" |
25 | #include "sigchain.h" | |
043a4492 RR |
26 | |
27 | #define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION" | |
26ae337b | 28 | |
5ed75e2a | 29 | const char sign_off_header[] = "Signed-off-by: "; |
cd650a4e | 30 | static const char cherry_picked_prefix[] = "(cherry picked from commit "; |
5ed75e2a | 31 | |
8a2a0f53 JS |
32 | GIT_PATH_FUNC(git_path_seq_dir, "sequencer") |
33 | ||
34 | static GIT_PATH_FUNC(git_path_todo_file, "sequencer/todo") | |
35 | static GIT_PATH_FUNC(git_path_opts_file, "sequencer/opts") | |
36 | static GIT_PATH_FUNC(git_path_head_file, "sequencer/head") | |
1e41229d | 37 | static GIT_PATH_FUNC(git_path_abort_safety_file, "sequencer/abort-safety") |
f932729c | 38 | |
84583957 JS |
39 | static GIT_PATH_FUNC(rebase_path, "rebase-merge") |
40 | /* | |
41 | * The file containing rebase commands, comments, and empty lines. | |
42 | * This file is created by "git rebase -i" then edited by the user. As | |
43 | * the lines are processed, they are removed from the front of this | |
44 | * file and written to the tail of 'done'. | |
45 | */ | |
46 | static GIT_PATH_FUNC(rebase_path_todo, "rebase-merge/git-rebase-todo") | |
1df6df0c JS |
47 | /* |
48 | * The rebase command lines that have already been processed. A line | |
49 | * is moved here when it is first handled, before any associated user | |
50 | * actions. | |
51 | */ | |
52 | static GIT_PATH_FUNC(rebase_path_done, "rebase-merge/done") | |
ef80069a JS |
53 | /* |
54 | * The file to keep track of how many commands were already processed (e.g. | |
55 | * for the prompt). | |
56 | */ | |
57 | static GIT_PATH_FUNC(rebase_path_msgnum, "rebase-merge/msgnum"); | |
58 | /* | |
59 | * The file to keep track of how many commands are to be processed in total | |
60 | * (e.g. for the prompt). | |
61 | */ | |
62 | static GIT_PATH_FUNC(rebase_path_msgtotal, "rebase-merge/end"); | |
6e98de72 JS |
63 | /* |
64 | * The commit message that is planned to be used for any changes that | |
65 | * need to be committed following a user interaction. | |
66 | */ | |
67 | static GIT_PATH_FUNC(rebase_path_message, "rebase-merge/message") | |
68 | /* | |
69 | * The file into which is accumulated the suggested commit message for | |
70 | * squash/fixup commands. When the first of a series of squash/fixups | |
71 | * is seen, the file is created and the commit message from the | |
72 | * previous commit and from the first squash/fixup commit are written | |
73 | * to it. The commit message for each subsequent squash/fixup commit | |
74 | * is appended to the file as it is processed. | |
75 | * | |
76 | * The first line of the file is of the form | |
77 | * # This is a combination of $count commits. | |
78 | * where $count is the number of commits whose messages have been | |
79 | * written to the file so far (including the initial "pick" commit). | |
80 | * Each time that a commit message is processed, this line is read and | |
81 | * updated. It is deleted just before the combined commit is made. | |
82 | */ | |
83 | static GIT_PATH_FUNC(rebase_path_squash_msg, "rebase-merge/message-squash") | |
84 | /* | |
85 | * If the current series of squash/fixups has not yet included a squash | |
86 | * command, then this file exists and holds the commit message of the | |
87 | * original "pick" commit. (If the series ends without a "squash" | |
88 | * command, then this can be used as the commit message of the combined | |
89 | * commit without opening the editor.) | |
90 | */ | |
91 | static GIT_PATH_FUNC(rebase_path_fixup_msg, "rebase-merge/message-fixup") | |
b5a67045 JS |
92 | /* |
93 | * A script to set the GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and | |
94 | * GIT_AUTHOR_DATE that will be used for the commit that is currently | |
95 | * being rebased. | |
96 | */ | |
97 | static GIT_PATH_FUNC(rebase_path_author_script, "rebase-merge/author-script") | |
56dc3ab0 JS |
98 | /* |
99 | * When an "edit" rebase command is being processed, the SHA1 of the | |
100 | * commit to be edited is recorded in this file. When "git rebase | |
101 | * --continue" is executed, if there are any staged changes then they | |
102 | * will be amended to the HEAD commit, but only provided the HEAD | |
103 | * commit is still the commit to be edited. When any other rebase | |
104 | * command is processed, this file is deleted. | |
105 | */ | |
106 | static GIT_PATH_FUNC(rebase_path_amend, "rebase-merge/amend") | |
107 | /* | |
108 | * When we stop at a given patch via the "edit" command, this file contains | |
109 | * the abbreviated commit name of the corresponding patch. | |
110 | */ | |
111 | static GIT_PATH_FUNC(rebase_path_stopped_sha, "rebase-merge/stopped-sha") | |
25cb8df9 JS |
112 | /* |
113 | * For the post-rewrite hook, we make a list of rewritten commits and | |
114 | * their new sha1s. The rewritten-pending list keeps the sha1s of | |
115 | * commits that have been processed, but not committed yet, | |
116 | * e.g. because they are waiting for a 'squash' command. | |
117 | */ | |
118 | static GIT_PATH_FUNC(rebase_path_rewritten_list, "rebase-merge/rewritten-list") | |
119 | static GIT_PATH_FUNC(rebase_path_rewritten_pending, | |
120 | "rebase-merge/rewritten-pending") | |
a1c75762 JS |
121 | /* |
122 | * The following files are written by git-rebase just after parsing the | |
123 | * command-line (and are only consumed, not modified, by the sequencer). | |
124 | */ | |
125 | static GIT_PATH_FUNC(rebase_path_gpg_sign_opt, "rebase-merge/gpg_sign_opt") | |
556907f1 JS |
126 | static GIT_PATH_FUNC(rebase_path_orig_head, "rebase-merge/orig-head") |
127 | static GIT_PATH_FUNC(rebase_path_verbose, "rebase-merge/verbose") | |
4b83ce9f JS |
128 | static GIT_PATH_FUNC(rebase_path_head_name, "rebase-merge/head-name") |
129 | static GIT_PATH_FUNC(rebase_path_onto, "rebase-merge/onto") | |
796c7972 | 130 | static GIT_PATH_FUNC(rebase_path_autostash, "rebase-merge/autostash") |
ca6c6b45 JS |
131 | static GIT_PATH_FUNC(rebase_path_strategy, "rebase-merge/strategy") |
132 | static GIT_PATH_FUNC(rebase_path_strategy_opts, "rebase-merge/strategy_opts") | |
9b6d7a62 | 133 | static GIT_PATH_FUNC(rebase_path_allow_rerere_autoupdate, "rebase-merge/allow_rerere_autoupdate") |
b5a67045 | 134 | |
b5a67045 JS |
135 | static inline int is_rebase_i(const struct replay_opts *opts) |
136 | { | |
84583957 | 137 | return opts->action == REPLAY_INTERACTIVE_REBASE; |
b5a67045 JS |
138 | } |
139 | ||
285abf56 JS |
140 | static const char *get_dir(const struct replay_opts *opts) |
141 | { | |
84583957 JS |
142 | if (is_rebase_i(opts)) |
143 | return rebase_path(); | |
285abf56 JS |
144 | return git_path_seq_dir(); |
145 | } | |
146 | ||
c0246501 JS |
147 | static const char *get_todo_path(const struct replay_opts *opts) |
148 | { | |
84583957 JS |
149 | if (is_rebase_i(opts)) |
150 | return rebase_path_todo(); | |
c0246501 JS |
151 | return git_path_todo_file(); |
152 | } | |
153 | ||
bab4d109 BC |
154 | /* |
155 | * Returns 0 for non-conforming footer | |
156 | * Returns 1 for conforming footer | |
157 | * Returns 2 when sob exists within conforming footer | |
158 | * Returns 3 when sob exists within conforming footer as last entry | |
159 | */ | |
160 | static int has_conforming_footer(struct strbuf *sb, struct strbuf *sob, | |
161 | int ignore_footer) | |
b971e04f | 162 | { |
967dfd4d JT |
163 | struct trailer_info info; |
164 | int i; | |
165 | int found_sob = 0, found_sob_last = 0; | |
b971e04f | 166 | |
967dfd4d | 167 | trailer_info_get(&info, sb->buf); |
b971e04f | 168 | |
967dfd4d | 169 | if (info.trailer_start == info.trailer_end) |
b971e04f BC |
170 | return 0; |
171 | ||
967dfd4d JT |
172 | for (i = 0; i < info.trailer_nr; i++) |
173 | if (sob && !strncmp(info.trailers[i], sob->buf, sob->len)) { | |
174 | found_sob = 1; | |
175 | if (i == info.trailer_nr - 1) | |
176 | found_sob_last = 1; | |
177 | } | |
b971e04f | 178 | |
967dfd4d | 179 | trailer_info_release(&info); |
bab4d109 | 180 | |
967dfd4d | 181 | if (found_sob_last) |
bab4d109 BC |
182 | return 3; |
183 | if (found_sob) | |
184 | return 2; | |
b971e04f BC |
185 | return 1; |
186 | } | |
5ed75e2a | 187 | |
a1c75762 JS |
188 | static const char *gpg_sign_opt_quoted(struct replay_opts *opts) |
189 | { | |
190 | static struct strbuf buf = STRBUF_INIT; | |
191 | ||
192 | strbuf_reset(&buf); | |
193 | if (opts->gpg_sign) | |
194 | sq_quotef(&buf, "-S%s", opts->gpg_sign); | |
195 | return buf.buf; | |
196 | } | |
197 | ||
2863584f | 198 | int sequencer_remove_state(struct replay_opts *opts) |
26ae337b | 199 | { |
285abf56 | 200 | struct strbuf dir = STRBUF_INIT; |
03a4e260 JS |
201 | int i; |
202 | ||
203 | free(opts->gpg_sign); | |
204 | free(opts->strategy); | |
205 | for (i = 0; i < opts->xopts_nr; i++) | |
206 | free(opts->xopts[i]); | |
207 | free(opts->xopts); | |
26ae337b | 208 | |
72d4a9a7 | 209 | strbuf_addstr(&dir, get_dir(opts)); |
285abf56 JS |
210 | remove_dir_recursively(&dir, 0); |
211 | strbuf_release(&dir); | |
2863584f JS |
212 | |
213 | return 0; | |
26ae337b | 214 | } |
043a4492 RR |
215 | |
216 | static const char *action_name(const struct replay_opts *opts) | |
217 | { | |
84583957 JS |
218 | switch (opts->action) { |
219 | case REPLAY_REVERT: | |
220 | return N_("revert"); | |
221 | case REPLAY_PICK: | |
222 | return N_("cherry-pick"); | |
223 | case REPLAY_INTERACTIVE_REBASE: | |
224 | return N_("rebase -i"); | |
225 | } | |
226 | die(_("Unknown action: %d"), opts->action); | |
043a4492 RR |
227 | } |
228 | ||
043a4492 RR |
229 | struct commit_message { |
230 | char *parent_label; | |
7b35eaf8 JK |
231 | char *label; |
232 | char *subject; | |
043a4492 RR |
233 | const char *message; |
234 | }; | |
235 | ||
39755964 JS |
236 | static const char *short_commit_name(struct commit *commit) |
237 | { | |
238 | return find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV); | |
239 | } | |
240 | ||
043a4492 RR |
241 | static int get_message(struct commit *commit, struct commit_message *out) |
242 | { | |
043a4492 | 243 | const char *abbrev, *subject; |
7b35eaf8 | 244 | int subject_len; |
043a4492 | 245 | |
7b35eaf8 | 246 | out->message = logmsg_reencode(commit, NULL, get_commit_output_encoding()); |
39755964 | 247 | abbrev = short_commit_name(commit); |
043a4492 RR |
248 | |
249 | subject_len = find_commit_subject(out->message, &subject); | |
250 | ||
7b35eaf8 JK |
251 | out->subject = xmemdupz(subject, subject_len); |
252 | out->label = xstrfmt("%s... %s", abbrev, out->subject); | |
253 | out->parent_label = xstrfmt("parent of %s", out->label); | |
254 | ||
043a4492 RR |
255 | return 0; |
256 | } | |
257 | ||
d74a4e57 | 258 | static void free_message(struct commit *commit, struct commit_message *msg) |
043a4492 RR |
259 | { |
260 | free(msg->parent_label); | |
7b35eaf8 JK |
261 | free(msg->label); |
262 | free(msg->subject); | |
b66103c3 | 263 | unuse_commit_buffer(commit, msg->message); |
043a4492 RR |
264 | } |
265 | ||
ed727b19 | 266 | static void print_advice(int show_hint, struct replay_opts *opts) |
043a4492 RR |
267 | { |
268 | char *msg = getenv("GIT_CHERRY_PICK_HELP"); | |
269 | ||
270 | if (msg) { | |
271 | fprintf(stderr, "%s\n", msg); | |
272 | /* | |
41ccfdd9 | 273 | * A conflict has occurred but the porcelain |
043a4492 RR |
274 | * (typically rebase --interactive) wants to take care |
275 | * of the commit itself so remove CHERRY_PICK_HEAD | |
276 | */ | |
f932729c | 277 | unlink(git_path_cherry_pick_head()); |
043a4492 RR |
278 | return; |
279 | } | |
280 | ||
ed727b19 PH |
281 | if (show_hint) { |
282 | if (opts->no_commit) | |
283 | advise(_("after resolving the conflicts, mark the corrected paths\n" | |
284 | "with 'git add <paths>' or 'git rm <paths>'")); | |
285 | else | |
286 | advise(_("after resolving the conflicts, mark the corrected paths\n" | |
287 | "with 'git add <paths>' or 'git rm <paths>'\n" | |
288 | "and commit the result with 'git commit'")); | |
289 | } | |
043a4492 RR |
290 | } |
291 | ||
f56fffef JS |
292 | static int write_message(const void *buf, size_t len, const char *filename, |
293 | int append_eol) | |
043a4492 RR |
294 | { |
295 | static struct lock_file msg_file; | |
296 | ||
4ef3d8f0 JS |
297 | int msg_fd = hold_lock_file_for_update(&msg_file, filename, 0); |
298 | if (msg_fd < 0) | |
93b3df6f | 299 | return error_errno(_("could not lock '%s'"), filename); |
75871495 | 300 | if (write_in_full(msg_fd, buf, len) < 0) { |
4f66c837 | 301 | rollback_lock_file(&msg_file); |
93b3df6f | 302 | return error_errno(_("could not write to '%s'"), filename); |
4f66c837 | 303 | } |
f56fffef JS |
304 | if (append_eol && write(msg_fd, "\n", 1) < 0) { |
305 | rollback_lock_file(&msg_file); | |
35871806 | 306 | return error_errno(_("could not write eol to '%s'"), filename); |
f56fffef | 307 | } |
4f66c837 JS |
308 | if (commit_lock_file(&msg_file) < 0) { |
309 | rollback_lock_file(&msg_file); | |
93b3df6f | 310 | return error(_("failed to finalize '%s'."), filename); |
4f66c837 | 311 | } |
4ef3d8f0 JS |
312 | |
313 | return 0; | |
043a4492 RR |
314 | } |
315 | ||
1dfc84e9 JS |
316 | /* |
317 | * Reads a file that was presumably written by a shell script, i.e. with an | |
318 | * end-of-line marker that needs to be stripped. | |
319 | * | |
320 | * Note that only the last end-of-line marker is stripped, consistent with the | |
321 | * behavior of "$(cat path)" in a shell script. | |
322 | * | |
323 | * Returns 1 if the file was read, 0 if it could not be read or does not exist. | |
324 | */ | |
325 | static int read_oneliner(struct strbuf *buf, | |
326 | const char *path, int skip_if_empty) | |
327 | { | |
328 | int orig_len = buf->len; | |
329 | ||
330 | if (!file_exists(path)) | |
331 | return 0; | |
332 | ||
333 | if (strbuf_read_file(buf, path, 0) < 0) { | |
334 | warning_errno(_("could not read '%s'"), path); | |
335 | return 0; | |
336 | } | |
337 | ||
338 | if (buf->len > orig_len && buf->buf[buf->len - 1] == '\n') { | |
339 | if (--buf->len > orig_len && buf->buf[buf->len - 1] == '\r') | |
340 | --buf->len; | |
341 | buf->buf[buf->len] = '\0'; | |
342 | } | |
343 | ||
344 | if (skip_if_empty && buf->len == orig_len) | |
345 | return 0; | |
346 | ||
347 | return 1; | |
348 | } | |
349 | ||
043a4492 RR |
350 | static struct tree *empty_tree(void) |
351 | { | |
740ee055 | 352 | return lookup_tree(&empty_tree_oid); |
043a4492 RR |
353 | } |
354 | ||
355 | static int error_dirty_index(struct replay_opts *opts) | |
356 | { | |
357 | if (read_cache_unmerged()) | |
c28cbc5e | 358 | return error_resolve_conflict(_(action_name(opts))); |
043a4492 | 359 | |
93b3df6f | 360 | error(_("your local changes would be overwritten by %s."), |
c28cbc5e | 361 | _(action_name(opts))); |
043a4492 RR |
362 | |
363 | if (advice_commit_before_merge) | |
93b3df6f | 364 | advise(_("commit your changes or stash them to proceed.")); |
043a4492 RR |
365 | return -1; |
366 | } | |
367 | ||
1e41229d SB |
368 | static void update_abort_safety_file(void) |
369 | { | |
370 | struct object_id head; | |
371 | ||
372 | /* Do nothing on a single-pick */ | |
373 | if (!file_exists(git_path_seq_dir())) | |
374 | return; | |
375 | ||
376 | if (!get_oid("HEAD", &head)) | |
377 | write_file(git_path_abort_safety_file(), "%s", oid_to_hex(&head)); | |
378 | else | |
379 | write_file(git_path_abort_safety_file(), "%s", ""); | |
380 | } | |
381 | ||
ace976b2 | 382 | static int fast_forward_to(const struct object_id *to, const struct object_id *from, |
eb4be1cb | 383 | int unborn, struct replay_opts *opts) |
043a4492 | 384 | { |
d668d16c | 385 | struct ref_transaction *transaction; |
eb4be1cb | 386 | struct strbuf sb = STRBUF_INIT; |
d668d16c | 387 | struct strbuf err = STRBUF_INIT; |
043a4492 RR |
388 | |
389 | read_cache(); | |
db699a8a | 390 | if (checkout_fast_forward(from, to, 1)) |
0e408fc3 | 391 | return -1; /* the callee should have complained already */ |
651ab9f5 | 392 | |
c28cbc5e | 393 | strbuf_addf(&sb, _("%s: fast-forward"), _(action_name(opts))); |
d668d16c RS |
394 | |
395 | transaction = ref_transaction_begin(&err); | |
396 | if (!transaction || | |
397 | ref_transaction_update(transaction, "HEAD", | |
89f3bbdd | 398 | to, unborn ? &null_oid : from, |
1d147bdf | 399 | 0, sb.buf, &err) || |
db7516ab | 400 | ref_transaction_commit(transaction, &err)) { |
d668d16c RS |
401 | ref_transaction_free(transaction); |
402 | error("%s", err.buf); | |
403 | strbuf_release(&sb); | |
404 | strbuf_release(&err); | |
405 | return -1; | |
406 | } | |
651ab9f5 | 407 | |
eb4be1cb | 408 | strbuf_release(&sb); |
d668d16c RS |
409 | strbuf_release(&err); |
410 | ref_transaction_free(transaction); | |
1e41229d | 411 | update_abort_safety_file(); |
d668d16c | 412 | return 0; |
043a4492 RR |
413 | } |
414 | ||
75c961b7 JH |
415 | void append_conflicts_hint(struct strbuf *msgbuf) |
416 | { | |
417 | int i; | |
418 | ||
261f315b JH |
419 | strbuf_addch(msgbuf, '\n'); |
420 | strbuf_commented_addf(msgbuf, "Conflicts:\n"); | |
75c961b7 JH |
421 | for (i = 0; i < active_nr;) { |
422 | const struct cache_entry *ce = active_cache[i++]; | |
423 | if (ce_stage(ce)) { | |
261f315b | 424 | strbuf_commented_addf(msgbuf, "\t%s\n", ce->name); |
75c961b7 JH |
425 | while (i < active_nr && !strcmp(ce->name, |
426 | active_cache[i]->name)) | |
427 | i++; | |
428 | } | |
429 | } | |
430 | } | |
431 | ||
043a4492 RR |
432 | static int do_recursive_merge(struct commit *base, struct commit *next, |
433 | const char *base_label, const char *next_label, | |
48be4c62 | 434 | struct object_id *head, struct strbuf *msgbuf, |
043a4492 RR |
435 | struct replay_opts *opts) |
436 | { | |
437 | struct merge_options o; | |
438 | struct tree *result, *next_tree, *base_tree, *head_tree; | |
03b86647 | 439 | int clean; |
03a4e260 | 440 | char **xopt; |
043a4492 RR |
441 | static struct lock_file index_lock; |
442 | ||
b3e83cc7 | 443 | hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR); |
043a4492 RR |
444 | |
445 | read_cache(); | |
446 | ||
447 | init_merge_options(&o); | |
448 | o.ancestor = base ? base_label : "(empty tree)"; | |
449 | o.branch1 = "HEAD"; | |
450 | o.branch2 = next ? next_label : "(empty tree)"; | |
62fdb652 JS |
451 | if (is_rebase_i(opts)) |
452 | o.buffer_output = 2; | |
043a4492 RR |
453 | |
454 | head_tree = parse_tree_indirect(head); | |
455 | next_tree = next ? next->tree : empty_tree(); | |
456 | base_tree = base ? base->tree : empty_tree(); | |
457 | ||
458 | for (xopt = opts->xopts; xopt != opts->xopts + opts->xopts_nr; xopt++) | |
459 | parse_merge_opt(&o, *xopt); | |
460 | ||
461 | clean = merge_trees(&o, | |
462 | head_tree, | |
463 | next_tree, base_tree, &result); | |
62fdb652 JS |
464 | if (is_rebase_i(opts) && clean <= 0) |
465 | fputs(o.obuf.buf, stdout); | |
548009c0 | 466 | strbuf_release(&o.obuf); |
f241ff0d JS |
467 | if (clean < 0) |
468 | return clean; | |
043a4492 RR |
469 | |
470 | if (active_cache_changed && | |
03b86647 | 471 | write_locked_index(&the_index, &index_lock, COMMIT_LOCK)) |
66f5f6dc ÆAB |
472 | /* |
473 | * TRANSLATORS: %s will be "revert", "cherry-pick" or | |
84583957 JS |
474 | * "rebase -i". |
475 | */ | |
c527b55e | 476 | return error(_("%s: Unable to write new index file"), |
c28cbc5e | 477 | _(action_name(opts))); |
043a4492 RR |
478 | rollback_lock_file(&index_lock); |
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 | ||
49e61479 | 491 | if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, &head_oid, 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); |
b5a67045 | 657 | if (defmsg) |
07d968ef | 658 | argv_array_pushl(&cmd.args, "-F", defmsg, NULL); |
789b3eff | 659 | if ((flags & CLEANUP_MSG)) |
07d968ef | 660 | argv_array_push(&cmd.args, "--cleanup=strip"); |
789b3eff | 661 | if ((flags & EDIT_MSG)) |
07d968ef | 662 | argv_array_push(&cmd.args, "-e"); |
789b3eff | 663 | else if (!(flags & CLEANUP_MSG) && |
0009426d | 664 | !opts->signoff && !opts->record_origin && |
b5a67045 | 665 | git_config_get_value("commit.cleanup", &value)) |
07d968ef | 666 | argv_array_push(&cmd.args, "--cleanup=verbatim"); |
b27cfb0d | 667 | |
789b3eff | 668 | if ((flags & ALLOW_EMPTY)) |
07d968ef | 669 | argv_array_push(&cmd.args, "--allow-empty"); |
df478b74 | 670 | |
4bee9584 | 671 | if (opts->allow_empty_message) |
07d968ef | 672 | argv_array_push(&cmd.args, "--allow-empty-message"); |
4bee9584 | 673 | |
9a757c49 JS |
674 | if (cmd.err == -1) { |
675 | /* hide stderr on success */ | |
676 | struct strbuf buf = STRBUF_INIT; | |
677 | int rc = pipe_command(&cmd, | |
678 | NULL, 0, | |
679 | /* stdout is already redirected */ | |
680 | NULL, 0, | |
681 | &buf, 0); | |
682 | if (rc) | |
683 | fputs(buf.buf, stderr); | |
684 | strbuf_release(&buf); | |
685 | return rc; | |
686 | } | |
b5a67045 | 687 | |
07d968ef | 688 | return run_command(&cmd); |
b27cfb0d NH |
689 | } |
690 | ||
b36c5908 PW |
691 | static enum commit_msg_cleanup_mode default_msg_cleanup = |
692 | COMMIT_MSG_CLEANUP_NONE; | |
693 | static char *default_gpg_sign; | |
694 | ||
695 | int git_sequencer_config(const char *k, const char *v, void *cb) | |
696 | { | |
697 | if (!strcmp(k, "commit.cleanup")) { | |
698 | int status; | |
699 | const char *s; | |
700 | ||
701 | status = git_config_string(&s, k, v); | |
702 | if (status) | |
703 | return status; | |
704 | ||
705 | if (!strcmp(s, "verbatim")) | |
706 | default_msg_cleanup = COMMIT_MSG_CLEANUP_NONE; | |
707 | else if (!strcmp(s, "whitespace")) | |
708 | default_msg_cleanup = COMMIT_MSG_CLEANUP_SPACE; | |
709 | else if (!strcmp(s, "strip")) | |
710 | default_msg_cleanup = COMMIT_MSG_CLEANUP_ALL; | |
711 | else if (!strcmp(s, "scissors")) | |
712 | default_msg_cleanup = COMMIT_MSG_CLEANUP_SPACE; | |
713 | ||
714 | return status; | |
715 | } | |
716 | ||
717 | if (!strcmp(k, "commit.gpgsign")) { | |
718 | default_gpg_sign = git_config_bool(k, v) ? "" : NULL; | |
719 | return 0; | |
720 | } | |
721 | ||
722 | return git_gpg_config(k, v, NULL); | |
723 | } | |
724 | ||
d0aaa46f PW |
725 | static int rest_is_empty(const struct strbuf *sb, int start) |
726 | { | |
727 | int i, eol; | |
728 | const char *nl; | |
729 | ||
730 | /* Check if the rest is just whitespace and Signed-off-by's. */ | |
731 | for (i = start; i < sb->len; i++) { | |
732 | nl = memchr(sb->buf + i, '\n', sb->len - i); | |
733 | if (nl) | |
734 | eol = nl - sb->buf; | |
735 | else | |
736 | eol = sb->len; | |
737 | ||
738 | if (strlen(sign_off_header) <= eol - i && | |
739 | starts_with(sb->buf + i, sign_off_header)) { | |
740 | i = eol; | |
741 | continue; | |
742 | } | |
743 | while (i < eol) | |
744 | if (!isspace(sb->buf[i++])) | |
745 | return 0; | |
746 | } | |
747 | ||
748 | return 1; | |
749 | } | |
750 | ||
751 | /* | |
752 | * Find out if the message in the strbuf contains only whitespace and | |
753 | * Signed-off-by lines. | |
754 | */ | |
755 | int message_is_empty(const struct strbuf *sb, | |
756 | enum commit_msg_cleanup_mode cleanup_mode) | |
757 | { | |
758 | if (cleanup_mode == COMMIT_MSG_CLEANUP_NONE && sb->len) | |
759 | return 0; | |
760 | return rest_is_empty(sb, 0); | |
761 | } | |
762 | ||
763 | /* | |
764 | * See if the user edited the message in the editor or left what | |
765 | * was in the template intact | |
766 | */ | |
767 | int template_untouched(const struct strbuf *sb, const char *template_file, | |
768 | enum commit_msg_cleanup_mode cleanup_mode) | |
769 | { | |
770 | struct strbuf tmpl = STRBUF_INIT; | |
771 | const char *start; | |
772 | ||
773 | if (cleanup_mode == COMMIT_MSG_CLEANUP_NONE && sb->len) | |
774 | return 0; | |
775 | ||
776 | if (!template_file || strbuf_read_file(&tmpl, template_file, 0) <= 0) | |
777 | return 0; | |
778 | ||
779 | strbuf_stripspace(&tmpl, cleanup_mode == COMMIT_MSG_CLEANUP_ALL); | |
780 | if (!skip_prefix(sb->buf, tmpl.buf, &start)) | |
781 | start = sb->buf; | |
782 | strbuf_release(&tmpl); | |
783 | return rest_is_empty(sb, start - sb->buf); | |
784 | } | |
785 | ||
0505d604 PW |
786 | int update_head_with_reflog(const struct commit *old_head, |
787 | const struct object_id *new_head, | |
788 | const char *action, const struct strbuf *msg, | |
789 | struct strbuf *err) | |
790 | { | |
791 | struct ref_transaction *transaction; | |
792 | struct strbuf sb = STRBUF_INIT; | |
793 | const char *nl; | |
794 | int ret = 0; | |
795 | ||
796 | if (action) { | |
797 | strbuf_addstr(&sb, action); | |
798 | strbuf_addstr(&sb, ": "); | |
799 | } | |
800 | ||
801 | nl = strchr(msg->buf, '\n'); | |
802 | if (nl) { | |
803 | strbuf_add(&sb, msg->buf, nl + 1 - msg->buf); | |
804 | } else { | |
805 | strbuf_addbuf(&sb, msg); | |
806 | strbuf_addch(&sb, '\n'); | |
807 | } | |
808 | ||
809 | transaction = ref_transaction_begin(err); | |
810 | if (!transaction || | |
811 | ref_transaction_update(transaction, "HEAD", new_head, | |
812 | old_head ? &old_head->object.oid : &null_oid, | |
813 | 0, sb.buf, err) || | |
814 | ref_transaction_commit(transaction, err)) { | |
815 | ret = -1; | |
816 | } | |
817 | ref_transaction_free(transaction); | |
818 | strbuf_release(&sb); | |
819 | ||
820 | return ret; | |
821 | } | |
822 | ||
a87a6f3c PW |
823 | static int run_rewrite_hook(const struct object_id *oldoid, |
824 | const struct object_id *newoid) | |
825 | { | |
826 | struct child_process proc = CHILD_PROCESS_INIT; | |
827 | const char *argv[3]; | |
828 | int code; | |
829 | struct strbuf sb = STRBUF_INIT; | |
830 | ||
831 | argv[0] = find_hook("post-rewrite"); | |
832 | if (!argv[0]) | |
833 | return 0; | |
834 | ||
835 | argv[1] = "amend"; | |
836 | argv[2] = NULL; | |
837 | ||
838 | proc.argv = argv; | |
839 | proc.in = -1; | |
840 | proc.stdout_to_stderr = 1; | |
841 | ||
842 | code = start_command(&proc); | |
843 | if (code) | |
844 | return code; | |
845 | strbuf_addf(&sb, "%s %s\n", oid_to_hex(oldoid), oid_to_hex(newoid)); | |
846 | sigchain_push(SIGPIPE, SIG_IGN); | |
847 | write_in_full(proc.in, sb.buf, sb.len); | |
848 | close(proc.in); | |
849 | strbuf_release(&sb); | |
850 | sigchain_pop(SIGPIPE); | |
851 | return finish_command(&proc); | |
852 | } | |
853 | ||
854 | void commit_post_rewrite(const struct commit *old_head, | |
855 | const struct object_id *new_head) | |
856 | { | |
857 | struct notes_rewrite_cfg *cfg; | |
858 | ||
859 | cfg = init_copy_notes_for_rewrite("amend"); | |
860 | if (cfg) { | |
861 | /* we are amending, so old_head is not NULL */ | |
862 | copy_note_for_rewrite(cfg, &old_head->object.oid, new_head); | |
863 | finish_copy_notes_for_rewrite(cfg, "Notes added by 'git commit --amend'"); | |
864 | } | |
865 | run_rewrite_hook(&old_head->object.oid, new_head); | |
866 | } | |
867 | ||
e47c6caf PW |
868 | static const char implicit_ident_advice_noconfig[] = |
869 | N_("Your name and email address were configured automatically based\n" | |
870 | "on your username and hostname. Please check that they are accurate.\n" | |
871 | "You can suppress this message by setting them explicitly. Run the\n" | |
872 | "following command and follow the instructions in your editor to edit\n" | |
873 | "your configuration file:\n" | |
874 | "\n" | |
875 | " git config --global --edit\n" | |
876 | "\n" | |
877 | "After doing this, you may fix the identity used for this commit with:\n" | |
878 | "\n" | |
879 | " git commit --amend --reset-author\n"); | |
880 | ||
881 | static const char implicit_ident_advice_config[] = | |
882 | N_("Your name and email address were configured automatically based\n" | |
883 | "on your username and hostname. Please check that they are accurate.\n" | |
884 | "You can suppress this message by setting them explicitly:\n" | |
885 | "\n" | |
886 | " git config --global user.name \"Your Name\"\n" | |
887 | " git config --global user.email you@example.com\n" | |
888 | "\n" | |
889 | "After doing this, you may fix the identity used for this commit with:\n" | |
890 | "\n" | |
891 | " git commit --amend --reset-author\n"); | |
892 | ||
893 | static const char *implicit_ident_advice(void) | |
894 | { | |
895 | char *user_config = expand_user_path("~/.gitconfig", 0); | |
896 | char *xdg_config = xdg_config_home("config"); | |
897 | int config_exists = file_exists(user_config) || file_exists(xdg_config); | |
898 | ||
899 | free(user_config); | |
900 | free(xdg_config); | |
901 | ||
902 | if (config_exists) | |
903 | return _(implicit_ident_advice_config); | |
904 | else | |
905 | return _(implicit_ident_advice_noconfig); | |
906 | ||
907 | } | |
908 | ||
909 | void print_commit_summary(const char *prefix, const struct object_id *oid, | |
910 | unsigned int flags) | |
911 | { | |
912 | struct rev_info rev; | |
913 | struct commit *commit; | |
914 | struct strbuf format = STRBUF_INIT; | |
915 | const char *head; | |
916 | struct pretty_print_context pctx = {0}; | |
917 | struct strbuf author_ident = STRBUF_INIT; | |
918 | struct strbuf committer_ident = STRBUF_INIT; | |
919 | ||
920 | commit = lookup_commit(oid); | |
921 | if (!commit) | |
922 | die(_("couldn't look up newly created commit")); | |
923 | if (parse_commit(commit)) | |
924 | die(_("could not parse newly created commit")); | |
925 | ||
926 | strbuf_addstr(&format, "format:%h] %s"); | |
927 | ||
928 | format_commit_message(commit, "%an <%ae>", &author_ident, &pctx); | |
929 | format_commit_message(commit, "%cn <%ce>", &committer_ident, &pctx); | |
930 | if (strbuf_cmp(&author_ident, &committer_ident)) { | |
931 | strbuf_addstr(&format, "\n Author: "); | |
932 | strbuf_addbuf_percentquote(&format, &author_ident); | |
933 | } | |
934 | if (flags & SUMMARY_SHOW_AUTHOR_DATE) { | |
935 | struct strbuf date = STRBUF_INIT; | |
936 | ||
937 | format_commit_message(commit, "%ad", &date, &pctx); | |
938 | strbuf_addstr(&format, "\n Date: "); | |
939 | strbuf_addbuf_percentquote(&format, &date); | |
940 | strbuf_release(&date); | |
941 | } | |
942 | if (!committer_ident_sufficiently_given()) { | |
943 | strbuf_addstr(&format, "\n Committer: "); | |
944 | strbuf_addbuf_percentquote(&format, &committer_ident); | |
945 | if (advice_implicit_identity) { | |
946 | strbuf_addch(&format, '\n'); | |
947 | strbuf_addstr(&format, implicit_ident_advice()); | |
948 | } | |
949 | } | |
950 | strbuf_release(&author_ident); | |
951 | strbuf_release(&committer_ident); | |
952 | ||
953 | init_revisions(&rev, prefix); | |
954 | setup_revisions(0, NULL, &rev, NULL); | |
955 | ||
956 | rev.diff = 1; | |
957 | rev.diffopt.output_format = | |
958 | DIFF_FORMAT_SHORTSTAT | DIFF_FORMAT_SUMMARY; | |
959 | ||
960 | rev.verbose_header = 1; | |
961 | rev.show_root_diff = 1; | |
962 | get_commit_format(format.buf, &rev); | |
963 | rev.always_show_header = 0; | |
964 | rev.diffopt.detect_rename = 1; | |
965 | rev.diffopt.break_opt = 0; | |
966 | diff_setup_done(&rev.diffopt); | |
967 | ||
968 | head = resolve_ref_unsafe("HEAD", 0, NULL, NULL); | |
969 | if (!head) | |
970 | die_errno(_("unable to resolve HEAD after creating commit")); | |
971 | if (!strcmp(head, "HEAD")) | |
972 | head = _("detached HEAD"); | |
973 | else | |
974 | skip_prefix(head, "refs/heads/", &head); | |
975 | printf("[%s%s ", head, (flags & SUMMARY_INITIAL_COMMIT) ? | |
976 | _(" (root-commit)") : ""); | |
977 | ||
978 | if (!log_tree_commit(&rev, commit)) { | |
979 | rev.always_show_header = 1; | |
980 | rev.use_terminator = 1; | |
981 | log_tree_commit(&rev, commit); | |
982 | } | |
983 | ||
984 | strbuf_release(&format); | |
985 | } | |
986 | ||
b27cfb0d NH |
987 | static int is_original_commit_empty(struct commit *commit) |
988 | { | |
092bbcdf | 989 | const struct object_id *ptree_oid; |
b27cfb0d NH |
990 | |
991 | if (parse_commit(commit)) | |
93b3df6f | 992 | return error(_("could not parse commit %s\n"), |
f2fd0760 | 993 | oid_to_hex(&commit->object.oid)); |
b27cfb0d NH |
994 | if (commit->parents) { |
995 | struct commit *parent = commit->parents->item; | |
996 | if (parse_commit(parent)) | |
93b3df6f | 997 | return error(_("could not parse parent commit %s\n"), |
f2fd0760 | 998 | oid_to_hex(&parent->object.oid)); |
092bbcdf | 999 | ptree_oid = &parent->tree->object.oid; |
b27cfb0d | 1000 | } else { |
092bbcdf | 1001 | ptree_oid = &empty_tree_oid; /* commit is root */ |
043a4492 | 1002 | } |
043a4492 | 1003 | |
092bbcdf | 1004 | return !oidcmp(ptree_oid, &commit->tree->object.oid); |
043a4492 RR |
1005 | } |
1006 | ||
ac2b0e8f JH |
1007 | /* |
1008 | * Do we run "git commit" with "--allow-empty"? | |
1009 | */ | |
1010 | static int allow_empty(struct replay_opts *opts, struct commit *commit) | |
1011 | { | |
1012 | int index_unchanged, empty_commit; | |
1013 | ||
1014 | /* | |
1015 | * Three cases: | |
1016 | * | |
1017 | * (1) we do not allow empty at all and error out. | |
1018 | * | |
1019 | * (2) we allow ones that were initially empty, but | |
1020 | * forbid the ones that become empty; | |
1021 | * | |
1022 | * (3) we allow both. | |
1023 | */ | |
1024 | if (!opts->allow_empty) | |
1025 | return 0; /* let "git commit" barf as necessary */ | |
1026 | ||
1027 | index_unchanged = is_index_unchanged(); | |
1028 | if (index_unchanged < 0) | |
1029 | return index_unchanged; | |
1030 | if (!index_unchanged) | |
1031 | return 0; /* we do not have to say --allow-empty */ | |
1032 | ||
1033 | if (opts->keep_redundant_commits) | |
1034 | return 1; | |
1035 | ||
1036 | empty_commit = is_original_commit_empty(commit); | |
1037 | if (empty_commit < 0) | |
1038 | return empty_commit; | |
1039 | if (!empty_commit) | |
1040 | return 0; | |
1041 | else | |
1042 | return 1; | |
1043 | } | |
1044 | ||
25c43667 JS |
1045 | /* |
1046 | * Note that ordering matters in this enum. Not only must it match the mapping | |
1047 | * below, it is also divided into several sections that matter. When adding | |
1048 | * new commands, make sure you add it in the right section. | |
1049 | */ | |
004fefa7 | 1050 | enum todo_command { |
25c43667 | 1051 | /* commands that handle commits */ |
004fefa7 | 1052 | TODO_PICK = 0, |
25c43667 | 1053 | TODO_REVERT, |
56dc3ab0 | 1054 | TODO_EDIT, |
04efc8b5 | 1055 | TODO_REWORD, |
6e98de72 JS |
1056 | TODO_FIXUP, |
1057 | TODO_SQUASH, | |
311af526 JS |
1058 | /* commands that do something else than handling a single commit */ |
1059 | TODO_EXEC, | |
25c43667 | 1060 | /* commands that do nothing but are counted for reporting progress */ |
b3fdd581 | 1061 | TODO_NOOP, |
ac191470 JS |
1062 | TODO_DROP, |
1063 | /* comments (not counted for reporting progress) */ | |
1064 | TODO_COMMENT | |
004fefa7 JS |
1065 | }; |
1066 | ||
414697a9 JS |
1067 | static struct { |
1068 | char c; | |
1069 | const char *str; | |
1070 | } todo_command_info[] = { | |
1071 | { 'p', "pick" }, | |
1072 | { 0, "revert" }, | |
1073 | { 'e', "edit" }, | |
04efc8b5 | 1074 | { 'r', "reword" }, |
414697a9 JS |
1075 | { 'f', "fixup" }, |
1076 | { 's', "squash" }, | |
1077 | { 'x', "exec" }, | |
b3fdd581 | 1078 | { 0, "noop" }, |
ac191470 JS |
1079 | { 'd', "drop" }, |
1080 | { 0, NULL } | |
004fefa7 JS |
1081 | }; |
1082 | ||
1083 | static const char *command_to_string(const enum todo_command command) | |
1084 | { | |
ac191470 | 1085 | if (command < TODO_COMMENT) |
414697a9 | 1086 | return todo_command_info[command].str; |
004fefa7 JS |
1087 | die("Unknown command: %d", command); |
1088 | } | |
1089 | ||
25c43667 JS |
1090 | static int is_noop(const enum todo_command command) |
1091 | { | |
b3fdd581 | 1092 | return TODO_NOOP <= command; |
25c43667 | 1093 | } |
004fefa7 | 1094 | |
6e98de72 JS |
1095 | static int is_fixup(enum todo_command command) |
1096 | { | |
1097 | return command == TODO_FIXUP || command == TODO_SQUASH; | |
1098 | } | |
1099 | ||
1100 | static int update_squash_messages(enum todo_command command, | |
1101 | struct commit *commit, struct replay_opts *opts) | |
1102 | { | |
1103 | struct strbuf buf = STRBUF_INIT; | |
1104 | int count, res; | |
1105 | const char *message, *body; | |
1106 | ||
1107 | if (file_exists(rebase_path_squash_msg())) { | |
1108 | struct strbuf header = STRBUF_INIT; | |
1109 | char *eol, *p; | |
1110 | ||
1111 | if (strbuf_read_file(&buf, rebase_path_squash_msg(), 2048) <= 0) | |
1112 | return error(_("could not read '%s'"), | |
1113 | rebase_path_squash_msg()); | |
1114 | ||
1115 | p = buf.buf + 1; | |
1116 | eol = strchrnul(buf.buf, '\n'); | |
1117 | if (buf.buf[0] != comment_line_char || | |
1118 | (p += strcspn(p, "0123456789\n")) == eol) | |
1119 | return error(_("unexpected 1st line of squash message:" | |
1120 | "\n\n\t%.*s"), | |
1121 | (int)(eol - buf.buf), buf.buf); | |
1122 | count = strtol(p, NULL, 10); | |
1123 | ||
1124 | if (count < 1) | |
1125 | return error(_("invalid 1st line of squash message:\n" | |
1126 | "\n\t%.*s"), | |
1127 | (int)(eol - buf.buf), buf.buf); | |
1128 | ||
1129 | strbuf_addf(&header, "%c ", comment_line_char); | |
1130 | strbuf_addf(&header, | |
1131 | _("This is a combination of %d commits."), ++count); | |
1132 | strbuf_splice(&buf, 0, eol - buf.buf, header.buf, header.len); | |
1133 | strbuf_release(&header); | |
1134 | } else { | |
33d66df3 | 1135 | struct object_id head; |
6e98de72 JS |
1136 | struct commit *head_commit; |
1137 | const char *head_message, *body; | |
1138 | ||
33d66df3 | 1139 | if (get_oid("HEAD", &head)) |
6e98de72 | 1140 | return error(_("need a HEAD to fixup")); |
bc83266a | 1141 | if (!(head_commit = lookup_commit_reference(&head))) |
6e98de72 JS |
1142 | return error(_("could not read HEAD")); |
1143 | if (!(head_message = get_commit_buffer(head_commit, NULL))) | |
1144 | return error(_("could not read HEAD's commit message")); | |
1145 | ||
1146 | find_commit_subject(head_message, &body); | |
1147 | if (write_message(body, strlen(body), | |
1148 | rebase_path_fixup_msg(), 0)) { | |
1149 | unuse_commit_buffer(head_commit, head_message); | |
1150 | return error(_("cannot write '%s'"), | |
1151 | rebase_path_fixup_msg()); | |
1152 | } | |
1153 | ||
1154 | count = 2; | |
1155 | strbuf_addf(&buf, "%c ", comment_line_char); | |
1156 | strbuf_addf(&buf, _("This is a combination of %d commits."), | |
1157 | count); | |
1158 | strbuf_addf(&buf, "\n%c ", comment_line_char); | |
1159 | strbuf_addstr(&buf, _("This is the 1st commit message:")); | |
1160 | strbuf_addstr(&buf, "\n\n"); | |
1161 | strbuf_addstr(&buf, body); | |
1162 | ||
1163 | unuse_commit_buffer(head_commit, head_message); | |
1164 | } | |
1165 | ||
1166 | if (!(message = get_commit_buffer(commit, NULL))) | |
1167 | return error(_("could not read commit message of %s"), | |
1168 | oid_to_hex(&commit->object.oid)); | |
1169 | find_commit_subject(message, &body); | |
1170 | ||
1171 | if (command == TODO_SQUASH) { | |
1172 | unlink(rebase_path_fixup_msg()); | |
1173 | strbuf_addf(&buf, "\n%c ", comment_line_char); | |
1174 | strbuf_addf(&buf, _("This is the commit message #%d:"), count); | |
1175 | strbuf_addstr(&buf, "\n\n"); | |
1176 | strbuf_addstr(&buf, body); | |
1177 | } else if (command == TODO_FIXUP) { | |
1178 | strbuf_addf(&buf, "\n%c ", comment_line_char); | |
1179 | strbuf_addf(&buf, _("The commit message #%d will be skipped:"), | |
1180 | count); | |
1181 | strbuf_addstr(&buf, "\n\n"); | |
1182 | strbuf_add_commented_lines(&buf, body, strlen(body)); | |
1183 | } else | |
1184 | return error(_("unknown command: %d"), command); | |
1185 | unuse_commit_buffer(commit, message); | |
1186 | ||
1187 | res = write_message(buf.buf, buf.len, rebase_path_squash_msg(), 0); | |
1188 | strbuf_release(&buf); | |
1189 | return res; | |
1190 | } | |
1191 | ||
25cb8df9 JS |
1192 | static void flush_rewritten_pending(void) { |
1193 | struct strbuf buf = STRBUF_INIT; | |
092bbcdf | 1194 | struct object_id newoid; |
25cb8df9 JS |
1195 | FILE *out; |
1196 | ||
092bbcdf | 1197 | if (strbuf_read_file(&buf, rebase_path_rewritten_pending(), (GIT_MAX_HEXSZ + 1) * 2) > 0 && |
1198 | !get_oid("HEAD", &newoid) && | |
e9d983f1 | 1199 | (out = fopen_or_warn(rebase_path_rewritten_list(), "a"))) { |
25cb8df9 JS |
1200 | char *bol = buf.buf, *eol; |
1201 | ||
1202 | while (*bol) { | |
1203 | eol = strchrnul(bol, '\n'); | |
1204 | fprintf(out, "%.*s %s\n", (int)(eol - bol), | |
092bbcdf | 1205 | bol, oid_to_hex(&newoid)); |
25cb8df9 JS |
1206 | if (!*eol) |
1207 | break; | |
1208 | bol = eol + 1; | |
1209 | } | |
1210 | fclose(out); | |
1211 | unlink(rebase_path_rewritten_pending()); | |
1212 | } | |
1213 | strbuf_release(&buf); | |
1214 | } | |
1215 | ||
1216 | static void record_in_rewritten(struct object_id *oid, | |
1217 | enum todo_command next_command) { | |
e9d983f1 | 1218 | FILE *out = fopen_or_warn(rebase_path_rewritten_pending(), "a"); |
25cb8df9 JS |
1219 | |
1220 | if (!out) | |
1221 | return; | |
1222 | ||
1223 | fprintf(out, "%s\n", oid_to_hex(oid)); | |
1224 | fclose(out); | |
1225 | ||
1226 | if (!is_fixup(next_command)) | |
1227 | flush_rewritten_pending(); | |
1228 | } | |
1229 | ||
004fefa7 | 1230 | static int do_pick_commit(enum todo_command command, struct commit *commit, |
6e98de72 | 1231 | struct replay_opts *opts, int final_fixup) |
043a4492 | 1232 | { |
789b3eff JS |
1233 | unsigned int flags = opts->edit ? EDIT_MSG : 0; |
1234 | const char *msg_file = opts->edit ? NULL : git_path_merge_msg(); | |
ace976b2 | 1235 | struct object_id head; |
043a4492 RR |
1236 | struct commit *base, *next, *parent; |
1237 | const char *base_label, *next_label; | |
d74a4e57 | 1238 | struct commit_message msg = { NULL, NULL, NULL, NULL }; |
043a4492 | 1239 | struct strbuf msgbuf = STRBUF_INIT; |
789b3eff | 1240 | int res, unborn = 0, allow; |
043a4492 RR |
1241 | |
1242 | if (opts->no_commit) { | |
1243 | /* | |
1244 | * We do not intend to commit immediately. We just want to | |
1245 | * merge the differences in, so let's compute the tree | |
1246 | * that represents the "current" state for merge-recursive | |
1247 | * to work on. | |
1248 | */ | |
ace976b2 | 1249 | if (write_cache_as_tree(head.hash, 0, NULL)) |
93b3df6f | 1250 | return error(_("your index file is unmerged.")); |
043a4492 | 1251 | } else { |
ace976b2 | 1252 | unborn = get_oid("HEAD", &head); |
334ae397 | 1253 | if (unborn) |
ace976b2 | 1254 | oidcpy(&head, &empty_tree_oid); |
02f2f56b BW |
1255 | if (index_differs_from(unborn ? EMPTY_TREE_SHA1_HEX : "HEAD", |
1256 | NULL, 0)) | |
043a4492 RR |
1257 | return error_dirty_index(opts); |
1258 | } | |
1259 | discard_cache(); | |
1260 | ||
637666c8 | 1261 | if (!commit->parents) |
043a4492 | 1262 | parent = NULL; |
043a4492 RR |
1263 | else if (commit->parents->next) { |
1264 | /* Reverting or cherry-picking a merge commit */ | |
1265 | int cnt; | |
1266 | struct commit_list *p; | |
1267 | ||
1268 | if (!opts->mainline) | |
93b3df6f | 1269 | return error(_("commit %s is a merge but no -m option was given."), |
f2fd0760 | 1270 | oid_to_hex(&commit->object.oid)); |
043a4492 RR |
1271 | |
1272 | for (cnt = 1, p = commit->parents; | |
1273 | cnt != opts->mainline && p; | |
1274 | cnt++) | |
1275 | p = p->next; | |
1276 | if (cnt != opts->mainline || !p) | |
93b3df6f | 1277 | return error(_("commit %s does not have parent %d"), |
f2fd0760 | 1278 | oid_to_hex(&commit->object.oid), opts->mainline); |
043a4492 RR |
1279 | parent = p->item; |
1280 | } else if (0 < opts->mainline) | |
93b3df6f | 1281 | return error(_("mainline was specified but commit %s is not a merge."), |
f2fd0760 | 1282 | oid_to_hex(&commit->object.oid)); |
043a4492 RR |
1283 | else |
1284 | parent = commit->parents->item; | |
1285 | ||
bcbb68be JS |
1286 | if (get_message(commit, &msg) != 0) |
1287 | return error(_("cannot get commit message for %s"), | |
1288 | oid_to_hex(&commit->object.oid)); | |
1289 | ||
6e98de72 | 1290 | if (opts->allow_ff && !is_fixup(command) && |
ace976b2 | 1291 | ((parent && !oidcmp(&parent->object.oid, &head)) || |
bcbb68be JS |
1292 | (!parent && unborn))) { |
1293 | if (is_rebase_i(opts)) | |
1294 | write_author_script(msg.message); | |
ace976b2 | 1295 | res = fast_forward_to(&commit->object.oid, &head, unborn, |
bcbb68be JS |
1296 | opts); |
1297 | if (res || command != TODO_REWORD) | |
1298 | goto leave; | |
789b3eff | 1299 | flags |= EDIT_MSG | AMEND_MSG; |
b92ff6e8 JS |
1300 | if (command == TODO_REWORD) |
1301 | flags |= VERIFY_MSG; | |
bcbb68be JS |
1302 | msg_file = NULL; |
1303 | goto fast_forward_edit; | |
1304 | } | |
043a4492 | 1305 | if (parent && parse_commit(parent) < 0) |
004fefa7 JS |
1306 | /* TRANSLATORS: The first %s will be a "todo" command like |
1307 | "revert" or "pick", the second %s a SHA1. */ | |
043a4492 | 1308 | return error(_("%s: cannot parse parent commit %s"), |
004fefa7 JS |
1309 | command_to_string(command), |
1310 | oid_to_hex(&parent->object.oid)); | |
043a4492 | 1311 | |
043a4492 RR |
1312 | /* |
1313 | * "commit" is an existing commit. We would want to apply | |
1314 | * the difference it introduces since its first parent "prev" | |
1315 | * on top of the current HEAD if we are cherry-pick. Or the | |
1316 | * reverse of it if we are revert. | |
1317 | */ | |
1318 | ||
004fefa7 | 1319 | if (command == TODO_REVERT) { |
043a4492 RR |
1320 | base = commit; |
1321 | base_label = msg.label; | |
1322 | next = parent; | |
1323 | next_label = msg.parent_label; | |
1324 | strbuf_addstr(&msgbuf, "Revert \""); | |
1325 | strbuf_addstr(&msgbuf, msg.subject); | |
1326 | strbuf_addstr(&msgbuf, "\"\n\nThis reverts commit "); | |
f2fd0760 | 1327 | strbuf_addstr(&msgbuf, oid_to_hex(&commit->object.oid)); |
043a4492 RR |
1328 | |
1329 | if (commit->parents && commit->parents->next) { | |
1330 | strbuf_addstr(&msgbuf, ", reversing\nchanges made to "); | |
f2fd0760 | 1331 | strbuf_addstr(&msgbuf, oid_to_hex(&parent->object.oid)); |
043a4492 RR |
1332 | } |
1333 | strbuf_addstr(&msgbuf, ".\n"); | |
1334 | } else { | |
1335 | const char *p; | |
1336 | ||
1337 | base = parent; | |
1338 | base_label = msg.parent_label; | |
1339 | next = commit; | |
1340 | next_label = msg.label; | |
1341 | ||
23aa5142 JS |
1342 | /* Append the commit log message to msgbuf. */ |
1343 | if (find_commit_subject(msg.message, &p)) | |
1344 | strbuf_addstr(&msgbuf, p); | |
043a4492 RR |
1345 | |
1346 | if (opts->record_origin) { | |
44dc738a | 1347 | strbuf_complete_line(&msgbuf); |
bab4d109 | 1348 | if (!has_conforming_footer(&msgbuf, NULL, 0)) |
b971e04f | 1349 | strbuf_addch(&msgbuf, '\n'); |
cd650a4e | 1350 | strbuf_addstr(&msgbuf, cherry_picked_prefix); |
f2fd0760 | 1351 | strbuf_addstr(&msgbuf, oid_to_hex(&commit->object.oid)); |
043a4492 RR |
1352 | strbuf_addstr(&msgbuf, ")\n"); |
1353 | } | |
1354 | } | |
1355 | ||
04efc8b5 | 1356 | if (command == TODO_REWORD) |
b92ff6e8 | 1357 | flags |= EDIT_MSG | VERIFY_MSG; |
04efc8b5 | 1358 | else if (is_fixup(command)) { |
6e98de72 JS |
1359 | if (update_squash_messages(command, commit, opts)) |
1360 | return -1; | |
789b3eff | 1361 | flags |= AMEND_MSG; |
6e98de72 JS |
1362 | if (!final_fixup) |
1363 | msg_file = rebase_path_squash_msg(); | |
1364 | else if (file_exists(rebase_path_fixup_msg())) { | |
789b3eff | 1365 | flags |= CLEANUP_MSG; |
6e98de72 JS |
1366 | msg_file = rebase_path_fixup_msg(); |
1367 | } else { | |
ca03e067 | 1368 | const char *dest = git_path_squash_msg(); |
6e98de72 JS |
1369 | unlink(dest); |
1370 | if (copy_file(dest, rebase_path_squash_msg(), 0666)) | |
1371 | return error(_("could not rename '%s' to '%s'"), | |
1372 | rebase_path_squash_msg(), dest); | |
ca03e067 | 1373 | unlink(git_path_merge_msg()); |
6e98de72 | 1374 | msg_file = dest; |
789b3eff | 1375 | flags |= EDIT_MSG; |
6e98de72 JS |
1376 | } |
1377 | } | |
1378 | ||
b34eeea3 PW |
1379 | if (opts->signoff) |
1380 | append_signoff(&msgbuf, 0, 0); | |
1381 | ||
0473f28a JS |
1382 | if (is_rebase_i(opts) && write_author_script(msg.message) < 0) |
1383 | res = -1; | |
1384 | else if (!opts->strategy || !strcmp(opts->strategy, "recursive") || command == TODO_REVERT) { | |
043a4492 | 1385 | res = do_recursive_merge(base, next, base_label, next_label, |
48be4c62 | 1386 | &head, &msgbuf, opts); |
f241ff0d JS |
1387 | if (res < 0) |
1388 | return res; | |
75871495 | 1389 | res |= write_message(msgbuf.buf, msgbuf.len, |
f56fffef | 1390 | git_path_merge_msg(), 0); |
043a4492 RR |
1391 | } else { |
1392 | struct commit_list *common = NULL; | |
1393 | struct commit_list *remotes = NULL; | |
1394 | ||
75871495 | 1395 | res = write_message(msgbuf.buf, msgbuf.len, |
f56fffef | 1396 | git_path_merge_msg(), 0); |
043a4492 RR |
1397 | |
1398 | commit_list_insert(base, &common); | |
1399 | commit_list_insert(next, &remotes); | |
03a4e260 JS |
1400 | res |= try_merge_command(opts->strategy, |
1401 | opts->xopts_nr, (const char **)opts->xopts, | |
ace976b2 | 1402 | common, oid_to_hex(&head), remotes); |
043a4492 RR |
1403 | free_commit_list(common); |
1404 | free_commit_list(remotes); | |
1405 | } | |
452202c7 | 1406 | strbuf_release(&msgbuf); |
043a4492 RR |
1407 | |
1408 | /* | |
1409 | * If the merge was clean or if it failed due to conflict, we write | |
1410 | * CHERRY_PICK_HEAD for the subsequent invocation of commit to use. | |
1411 | * However, if the merge did not even start, then we don't want to | |
1412 | * write it at all. | |
1413 | */ | |
004fefa7 | 1414 | if (command == TODO_PICK && !opts->no_commit && (res == 0 || res == 1) && |
ae077771 | 1415 | update_ref(NULL, "CHERRY_PICK_HEAD", &commit->object.oid, NULL, |
dbfad033 JS |
1416 | REF_NODEREF, UPDATE_REFS_MSG_ON_ERR)) |
1417 | res = -1; | |
004fefa7 | 1418 | if (command == TODO_REVERT && ((opts->no_commit && res == 0) || res == 1) && |
ae077771 | 1419 | update_ref(NULL, "REVERT_HEAD", &commit->object.oid, NULL, |
dbfad033 JS |
1420 | REF_NODEREF, UPDATE_REFS_MSG_ON_ERR)) |
1421 | res = -1; | |
043a4492 RR |
1422 | |
1423 | if (res) { | |
004fefa7 | 1424 | error(command == TODO_REVERT |
043a4492 RR |
1425 | ? _("could not revert %s... %s") |
1426 | : _("could not apply %s... %s"), | |
39755964 | 1427 | short_commit_name(commit), msg.subject); |
ed727b19 | 1428 | print_advice(res == 1, opts); |
043a4492 | 1429 | rerere(opts->allow_rerere_auto); |
c8d1351d | 1430 | goto leave; |
043a4492 RR |
1431 | } |
1432 | ||
c8d1351d | 1433 | allow = allow_empty(opts, commit); |
706728a3 FC |
1434 | if (allow < 0) { |
1435 | res = allow; | |
1436 | goto leave; | |
789b3eff JS |
1437 | } else if (allow) |
1438 | flags |= ALLOW_EMPTY; | |
c8d1351d | 1439 | if (!opts->no_commit) |
bcbb68be | 1440 | fast_forward_edit: |
789b3eff | 1441 | res = run_git_commit(msg_file, opts, flags); |
6e98de72 JS |
1442 | |
1443 | if (!res && final_fixup) { | |
1444 | unlink(rebase_path_fixup_msg()); | |
1445 | unlink(rebase_path_squash_msg()); | |
1446 | } | |
c8d1351d FC |
1447 | |
1448 | leave: | |
d74a4e57 | 1449 | free_message(commit, &msg); |
1e41229d | 1450 | update_abort_safety_file(); |
043a4492 RR |
1451 | |
1452 | return res; | |
1453 | } | |
1454 | ||
c3e8618c | 1455 | static int prepare_revs(struct replay_opts *opts) |
043a4492 | 1456 | { |
a73e22e9 MZ |
1457 | /* |
1458 | * picking (but not reverting) ranges (but not individual revisions) | |
1459 | * should be done in reverse | |
1460 | */ | |
1461 | if (opts->action == REPLAY_PICK && !opts->revs->no_walk) | |
043a4492 RR |
1462 | opts->revs->reverse ^= 1; |
1463 | ||
1464 | if (prepare_revision_walk(opts->revs)) | |
c3e8618c | 1465 | return error(_("revision walk setup failed")); |
043a4492 RR |
1466 | |
1467 | if (!opts->revs->commits) | |
c3e8618c JS |
1468 | return error(_("empty commit set passed")); |
1469 | return 0; | |
043a4492 RR |
1470 | } |
1471 | ||
0d9c6dc9 | 1472 | static int read_and_refresh_cache(struct replay_opts *opts) |
043a4492 RR |
1473 | { |
1474 | static struct lock_file index_lock; | |
1475 | int index_fd = hold_locked_index(&index_lock, 0); | |
49fb937e JS |
1476 | if (read_index_preload(&the_index, NULL) < 0) { |
1477 | rollback_lock_file(&index_lock); | |
0d9c6dc9 | 1478 | return error(_("git %s: failed to read the index"), |
c28cbc5e | 1479 | _(action_name(opts))); |
49fb937e | 1480 | } |
043a4492 | 1481 | refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL); |
33c297aa | 1482 | if (the_index.cache_changed && index_fd >= 0) { |
49fb937e | 1483 | if (write_locked_index(&the_index, &index_lock, COMMIT_LOCK)) { |
0d9c6dc9 | 1484 | return error(_("git %s: failed to refresh the index"), |
c28cbc5e | 1485 | _(action_name(opts))); |
49fb937e | 1486 | } |
043a4492 RR |
1487 | } |
1488 | rollback_lock_file(&index_lock); | |
0d9c6dc9 | 1489 | return 0; |
043a4492 RR |
1490 | } |
1491 | ||
004fefa7 JS |
1492 | struct todo_item { |
1493 | enum todo_command command; | |
1494 | struct commit *commit; | |
c22f7dfb JS |
1495 | const char *arg; |
1496 | int arg_len; | |
004fefa7 JS |
1497 | size_t offset_in_buf; |
1498 | }; | |
1499 | ||
1500 | struct todo_list { | |
1501 | struct strbuf buf; | |
1502 | struct todo_item *items; | |
1503 | int nr, alloc, current; | |
968492e4 | 1504 | int done_nr, total_nr; |
54fd3243 | 1505 | struct stat_data stat; |
004fefa7 JS |
1506 | }; |
1507 | ||
1508 | #define TODO_LIST_INIT { STRBUF_INIT } | |
1509 | ||
1510 | static void todo_list_release(struct todo_list *todo_list) | |
043a4492 | 1511 | { |
004fefa7 | 1512 | strbuf_release(&todo_list->buf); |
6a83d902 | 1513 | FREE_AND_NULL(todo_list->items); |
004fefa7 JS |
1514 | todo_list->nr = todo_list->alloc = 0; |
1515 | } | |
043a4492 | 1516 | |
004fefa7 JS |
1517 | static struct todo_item *append_new_todo(struct todo_list *todo_list) |
1518 | { | |
1519 | ALLOC_GROW(todo_list->items, todo_list->nr + 1, todo_list->alloc); | |
1520 | return todo_list->items + todo_list->nr++; | |
043a4492 RR |
1521 | } |
1522 | ||
004fefa7 | 1523 | static int parse_insn_line(struct todo_item *item, const char *bol, char *eol) |
043a4492 | 1524 | { |
1e43ed98 | 1525 | struct object_id commit_oid; |
043a4492 | 1526 | char *end_of_object_name; |
004fefa7 JS |
1527 | int i, saved, status, padding; |
1528 | ||
8f8550b3 JS |
1529 | /* left-trim */ |
1530 | bol += strspn(bol, " \t"); | |
1531 | ||
25c43667 | 1532 | if (bol == eol || *bol == '\r' || *bol == comment_line_char) { |
ac191470 | 1533 | item->command = TODO_COMMENT; |
25c43667 JS |
1534 | item->commit = NULL; |
1535 | item->arg = bol; | |
1536 | item->arg_len = eol - bol; | |
1537 | return 0; | |
1538 | } | |
1539 | ||
ac191470 | 1540 | for (i = 0; i < TODO_COMMENT; i++) |
414697a9 JS |
1541 | if (skip_prefix(bol, todo_command_info[i].str, &bol)) { |
1542 | item->command = i; | |
1543 | break; | |
1544 | } else if (bol[1] == ' ' && *bol == todo_command_info[i].c) { | |
1545 | bol++; | |
004fefa7 JS |
1546 | item->command = i; |
1547 | break; | |
1548 | } | |
ac191470 | 1549 | if (i >= TODO_COMMENT) |
004fefa7 | 1550 | return -1; |
043a4492 | 1551 | |
25c43667 JS |
1552 | if (item->command == TODO_NOOP) { |
1553 | item->commit = NULL; | |
1554 | item->arg = bol; | |
1555 | item->arg_len = eol - bol; | |
1556 | return 0; | |
1557 | } | |
1558 | ||
043a4492 RR |
1559 | /* Eat up extra spaces/ tabs before object name */ |
1560 | padding = strspn(bol, " \t"); | |
1561 | if (!padding) | |
004fefa7 | 1562 | return -1; |
043a4492 RR |
1563 | bol += padding; |
1564 | ||
311af526 JS |
1565 | if (item->command == TODO_EXEC) { |
1566 | item->arg = bol; | |
1567 | item->arg_len = (int)(eol - bol); | |
1568 | return 0; | |
1569 | } | |
1570 | ||
004fefa7 | 1571 | end_of_object_name = (char *) bol + strcspn(bol, " \t\n"); |
043a4492 RR |
1572 | saved = *end_of_object_name; |
1573 | *end_of_object_name = '\0'; | |
1e43ed98 | 1574 | status = get_oid(bol, &commit_oid); |
043a4492 RR |
1575 | *end_of_object_name = saved; |
1576 | ||
c22f7dfb JS |
1577 | item->arg = end_of_object_name + strspn(end_of_object_name, " \t"); |
1578 | item->arg_len = (int)(eol - item->arg); | |
1579 | ||
043a4492 | 1580 | if (status < 0) |
004fefa7 | 1581 | return -1; |
043a4492 | 1582 | |
bc83266a | 1583 | item->commit = lookup_commit_reference(&commit_oid); |
004fefa7 | 1584 | return !item->commit; |
043a4492 RR |
1585 | } |
1586 | ||
004fefa7 | 1587 | static int parse_insn_buffer(char *buf, struct todo_list *todo_list) |
043a4492 | 1588 | { |
004fefa7 JS |
1589 | struct todo_item *item; |
1590 | char *p = buf, *next_p; | |
6e98de72 | 1591 | int i, res = 0, fixup_okay = file_exists(rebase_path_done()); |
043a4492 | 1592 | |
004fefa7 | 1593 | for (i = 1; *p; i++, p = next_p) { |
043a4492 | 1594 | char *eol = strchrnul(p, '\n'); |
004fefa7 JS |
1595 | |
1596 | next_p = *eol ? eol + 1 /* skip LF */ : eol; | |
1597 | ||
6307041d JS |
1598 | if (p != eol && eol[-1] == '\r') |
1599 | eol--; /* strip Carriage Return */ | |
1600 | ||
004fefa7 JS |
1601 | item = append_new_todo(todo_list); |
1602 | item->offset_in_buf = p - todo_list->buf.buf; | |
1603 | if (parse_insn_line(item, p, eol)) { | |
93b3df6f | 1604 | res = error(_("invalid line %d: %.*s"), |
004fefa7 | 1605 | i, (int)(eol - p), p); |
6e98de72 | 1606 | item->command = TODO_NOOP; |
004fefa7 | 1607 | } |
6e98de72 JS |
1608 | |
1609 | if (fixup_okay) | |
1610 | ; /* do nothing */ | |
1611 | else if (is_fixup(item->command)) | |
1612 | return error(_("cannot '%s' without a previous commit"), | |
1613 | command_to_string(item->command)); | |
1614 | else if (!is_noop(item->command)) | |
1615 | fixup_okay = 1; | |
043a4492 | 1616 | } |
52865279 | 1617 | |
004fefa7 | 1618 | return res; |
043a4492 RR |
1619 | } |
1620 | ||
968492e4 JS |
1621 | static int count_commands(struct todo_list *todo_list) |
1622 | { | |
1623 | int count = 0, i; | |
1624 | ||
1625 | for (i = 0; i < todo_list->nr; i++) | |
1626 | if (todo_list->items[i].command != TODO_COMMENT) | |
1627 | count++; | |
1628 | ||
1629 | return count; | |
1630 | } | |
1631 | ||
004fefa7 | 1632 | static int read_populate_todo(struct todo_list *todo_list, |
043a4492 RR |
1633 | struct replay_opts *opts) |
1634 | { | |
54fd3243 | 1635 | struct stat st; |
c0246501 | 1636 | const char *todo_file = get_todo_path(opts); |
043a4492 RR |
1637 | int fd, res; |
1638 | ||
004fefa7 | 1639 | strbuf_reset(&todo_list->buf); |
c0246501 | 1640 | fd = open(todo_file, O_RDONLY); |
043a4492 | 1641 | if (fd < 0) |
93b3df6f | 1642 | return error_errno(_("could not open '%s'"), todo_file); |
004fefa7 | 1643 | if (strbuf_read(&todo_list->buf, fd, 0) < 0) { |
043a4492 | 1644 | close(fd); |
93b3df6f | 1645 | return error(_("could not read '%s'."), todo_file); |
043a4492 RR |
1646 | } |
1647 | close(fd); | |
1648 | ||
54fd3243 SH |
1649 | res = stat(todo_file, &st); |
1650 | if (res) | |
1651 | return error(_("could not stat '%s'"), todo_file); | |
1652 | fill_stat_data(&todo_list->stat, &st); | |
1653 | ||
004fefa7 | 1654 | res = parse_insn_buffer(todo_list->buf.buf, todo_list); |
27fdbb96 JS |
1655 | if (res) { |
1656 | if (is_rebase_i(opts)) | |
1657 | return error(_("please fix this using " | |
1658 | "'git rebase --edit-todo'.")); | |
93b3df6f | 1659 | return error(_("unusable instruction sheet: '%s'"), todo_file); |
27fdbb96 | 1660 | } |
2eeaf1b3 | 1661 | |
52865279 JS |
1662 | if (!todo_list->nr && |
1663 | (!is_rebase_i(opts) || !file_exists(rebase_path_done()))) | |
1664 | return error(_("no commits parsed.")); | |
1665 | ||
2eeaf1b3 | 1666 | if (!is_rebase_i(opts)) { |
004fefa7 JS |
1667 | enum todo_command valid = |
1668 | opts->action == REPLAY_PICK ? TODO_PICK : TODO_REVERT; | |
1669 | int i; | |
1670 | ||
1671 | for (i = 0; i < todo_list->nr; i++) | |
1672 | if (valid == todo_list->items[i].command) | |
1673 | continue; | |
1674 | else if (valid == TODO_PICK) | |
93b3df6f | 1675 | return error(_("cannot cherry-pick during a revert.")); |
004fefa7 | 1676 | else |
93b3df6f | 1677 | return error(_("cannot revert during a cherry-pick.")); |
004fefa7 JS |
1678 | } |
1679 | ||
968492e4 JS |
1680 | if (is_rebase_i(opts)) { |
1681 | struct todo_list done = TODO_LIST_INIT; | |
e9d983f1 | 1682 | FILE *f = fopen_or_warn(rebase_path_msgtotal(), "w"); |
968492e4 JS |
1683 | |
1684 | if (strbuf_read_file(&done.buf, rebase_path_done(), 0) > 0 && | |
1685 | !parse_insn_buffer(done.buf.buf, &done)) | |
1686 | todo_list->done_nr = count_commands(&done); | |
1687 | else | |
1688 | todo_list->done_nr = 0; | |
1689 | ||
1690 | todo_list->total_nr = todo_list->done_nr | |
1691 | + count_commands(todo_list); | |
968492e4 | 1692 | todo_list_release(&done); |
ef80069a JS |
1693 | |
1694 | if (f) { | |
1695 | fprintf(f, "%d\n", todo_list->total_nr); | |
1696 | fclose(f); | |
1697 | } | |
968492e4 JS |
1698 | } |
1699 | ||
0ae42a03 | 1700 | return 0; |
043a4492 RR |
1701 | } |
1702 | ||
03a4e260 JS |
1703 | static int git_config_string_dup(char **dest, |
1704 | const char *var, const char *value) | |
1705 | { | |
1706 | if (!value) | |
1707 | return config_error_nonbool(var); | |
1708 | free(*dest); | |
1709 | *dest = xstrdup(value); | |
1710 | return 0; | |
1711 | } | |
1712 | ||
043a4492 RR |
1713 | static int populate_opts_cb(const char *key, const char *value, void *data) |
1714 | { | |
1715 | struct replay_opts *opts = data; | |
1716 | int error_flag = 1; | |
1717 | ||
1718 | if (!value) | |
1719 | error_flag = 0; | |
1720 | else if (!strcmp(key, "options.no-commit")) | |
1721 | opts->no_commit = git_config_bool_or_int(key, value, &error_flag); | |
1722 | else if (!strcmp(key, "options.edit")) | |
1723 | opts->edit = git_config_bool_or_int(key, value, &error_flag); | |
1724 | else if (!strcmp(key, "options.signoff")) | |
1725 | opts->signoff = git_config_bool_or_int(key, value, &error_flag); | |
1726 | else if (!strcmp(key, "options.record-origin")) | |
1727 | opts->record_origin = git_config_bool_or_int(key, value, &error_flag); | |
1728 | else if (!strcmp(key, "options.allow-ff")) | |
1729 | opts->allow_ff = git_config_bool_or_int(key, value, &error_flag); | |
1730 | else if (!strcmp(key, "options.mainline")) | |
1731 | opts->mainline = git_config_int(key, value); | |
1732 | else if (!strcmp(key, "options.strategy")) | |
03a4e260 | 1733 | git_config_string_dup(&opts->strategy, key, value); |
3253553e | 1734 | else if (!strcmp(key, "options.gpg-sign")) |
03a4e260 | 1735 | git_config_string_dup(&opts->gpg_sign, key, value); |
043a4492 RR |
1736 | else if (!strcmp(key, "options.strategy-option")) { |
1737 | ALLOC_GROW(opts->xopts, opts->xopts_nr + 1, opts->xopts_alloc); | |
1738 | opts->xopts[opts->xopts_nr++] = xstrdup(value); | |
8d8cb4b0 PW |
1739 | } else if (!strcmp(key, "options.allow-rerere-auto")) |
1740 | opts->allow_rerere_auto = | |
1741 | git_config_bool_or_int(key, value, &error_flag) ? | |
1742 | RERERE_AUTOUPDATE : RERERE_NOAUTOUPDATE; | |
1743 | else | |
93b3df6f | 1744 | return error(_("invalid key: %s"), key); |
043a4492 RR |
1745 | |
1746 | if (!error_flag) | |
93b3df6f | 1747 | return error(_("invalid value for %s: %s"), key, value); |
043a4492 RR |
1748 | |
1749 | return 0; | |
1750 | } | |
1751 | ||
ca6c6b45 JS |
1752 | static void read_strategy_opts(struct replay_opts *opts, struct strbuf *buf) |
1753 | { | |
1754 | int i; | |
1755 | ||
1756 | strbuf_reset(buf); | |
1757 | if (!read_oneliner(buf, rebase_path_strategy(), 0)) | |
1758 | return; | |
1759 | opts->strategy = strbuf_detach(buf, NULL); | |
1760 | if (!read_oneliner(buf, rebase_path_strategy_opts(), 0)) | |
1761 | return; | |
1762 | ||
1763 | opts->xopts_nr = split_cmdline(buf->buf, (const char ***)&opts->xopts); | |
1764 | for (i = 0; i < opts->xopts_nr; i++) { | |
1765 | const char *arg = opts->xopts[i]; | |
1766 | ||
1767 | skip_prefix(arg, "--", &arg); | |
1768 | opts->xopts[i] = xstrdup(arg); | |
1769 | } | |
1770 | } | |
1771 | ||
5adf9bdc | 1772 | static int read_populate_opts(struct replay_opts *opts) |
043a4492 | 1773 | { |
a1c75762 JS |
1774 | if (is_rebase_i(opts)) { |
1775 | struct strbuf buf = STRBUF_INIT; | |
1776 | ||
1777 | if (read_oneliner(&buf, rebase_path_gpg_sign_opt(), 1)) { | |
1778 | if (!starts_with(buf.buf, "-S")) | |
1779 | strbuf_reset(&buf); | |
1780 | else { | |
1781 | free(opts->gpg_sign); | |
1782 | opts->gpg_sign = xstrdup(buf.buf + 2); | |
1783 | } | |
9b6d7a62 PW |
1784 | strbuf_reset(&buf); |
1785 | } | |
1786 | ||
1787 | if (read_oneliner(&buf, rebase_path_allow_rerere_autoupdate(), 1)) { | |
1788 | if (!strcmp(buf.buf, "--rerere-autoupdate")) | |
1789 | opts->allow_rerere_auto = RERERE_AUTOUPDATE; | |
1790 | else if (!strcmp(buf.buf, "--no-rerere-autoupdate")) | |
1791 | opts->allow_rerere_auto = RERERE_NOAUTOUPDATE; | |
1792 | strbuf_reset(&buf); | |
a1c75762 | 1793 | } |
a1c75762 | 1794 | |
556907f1 JS |
1795 | if (file_exists(rebase_path_verbose())) |
1796 | opts->verbose = 1; | |
1797 | ||
ca6c6b45 JS |
1798 | read_strategy_opts(opts, &buf); |
1799 | strbuf_release(&buf); | |
1800 | ||
b5a67045 | 1801 | return 0; |
a1c75762 | 1802 | } |
b5a67045 | 1803 | |
f932729c | 1804 | if (!file_exists(git_path_opts_file())) |
0d00da7b JS |
1805 | return 0; |
1806 | /* | |
1807 | * The function git_parse_source(), called from git_config_from_file(), | |
1808 | * may die() in case of a syntactically incorrect file. We do not care | |
1809 | * about this case, though, because we wrote that file ourselves, so we | |
1810 | * are pretty certain that it is syntactically correct. | |
1811 | */ | |
5adf9bdc | 1812 | if (git_config_from_file(populate_opts_cb, git_path_opts_file(), opts) < 0) |
93b3df6f | 1813 | return error(_("malformed options sheet: '%s'"), |
0d00da7b JS |
1814 | git_path_opts_file()); |
1815 | return 0; | |
043a4492 RR |
1816 | } |
1817 | ||
004fefa7 | 1818 | static int walk_revs_populate_todo(struct todo_list *todo_list, |
043a4492 RR |
1819 | struct replay_opts *opts) |
1820 | { | |
004fefa7 JS |
1821 | enum todo_command command = opts->action == REPLAY_PICK ? |
1822 | TODO_PICK : TODO_REVERT; | |
414697a9 | 1823 | const char *command_string = todo_command_info[command].str; |
043a4492 | 1824 | struct commit *commit; |
043a4492 | 1825 | |
34b0528b JS |
1826 | if (prepare_revs(opts)) |
1827 | return -1; | |
043a4492 | 1828 | |
004fefa7 JS |
1829 | while ((commit = get_revision(opts->revs))) { |
1830 | struct todo_item *item = append_new_todo(todo_list); | |
1831 | const char *commit_buffer = get_commit_buffer(commit, NULL); | |
1832 | const char *subject; | |
1833 | int subject_len; | |
1834 | ||
1835 | item->command = command; | |
1836 | item->commit = commit; | |
c22f7dfb JS |
1837 | item->arg = NULL; |
1838 | item->arg_len = 0; | |
004fefa7 JS |
1839 | item->offset_in_buf = todo_list->buf.len; |
1840 | subject_len = find_commit_subject(commit_buffer, &subject); | |
1841 | strbuf_addf(&todo_list->buf, "%s %s %.*s\n", command_string, | |
1842 | short_commit_name(commit), subject_len, subject); | |
1843 | unuse_commit_buffer(commit, commit_buffer); | |
1844 | } | |
34b0528b | 1845 | return 0; |
043a4492 RR |
1846 | } |
1847 | ||
1848 | static int create_seq_dir(void) | |
1849 | { | |
f932729c | 1850 | if (file_exists(git_path_seq_dir())) { |
043a4492 RR |
1851 | error(_("a cherry-pick or revert is already in progress")); |
1852 | advise(_("try \"git cherry-pick (--continue | --quit | --abort)\"")); | |
1853 | return -1; | |
a70d8f80 | 1854 | } else if (mkdir(git_path_seq_dir(), 0777) < 0) |
93b3df6f | 1855 | return error_errno(_("could not create sequencer directory '%s'"), |
f6e82b0d | 1856 | git_path_seq_dir()); |
043a4492 RR |
1857 | return 0; |
1858 | } | |
1859 | ||
311fd397 | 1860 | static int save_head(const char *head) |
043a4492 | 1861 | { |
043a4492 RR |
1862 | static struct lock_file head_lock; |
1863 | struct strbuf buf = STRBUF_INIT; | |
1864 | int fd; | |
ed3f9a12 | 1865 | ssize_t written; |
043a4492 | 1866 | |
311fd397 JS |
1867 | fd = hold_lock_file_for_update(&head_lock, git_path_head_file(), 0); |
1868 | if (fd < 0) { | |
1869 | rollback_lock_file(&head_lock); | |
93b3df6f | 1870 | return error_errno(_("could not lock HEAD")); |
311fd397 | 1871 | } |
043a4492 | 1872 | strbuf_addf(&buf, "%s\n", head); |
ed3f9a12 RS |
1873 | written = write_in_full(fd, buf.buf, buf.len); |
1874 | strbuf_release(&buf); | |
1875 | if (written < 0) { | |
311fd397 | 1876 | rollback_lock_file(&head_lock); |
93b3df6f | 1877 | return error_errno(_("could not write to '%s'"), |
311fd397 JS |
1878 | git_path_head_file()); |
1879 | } | |
1880 | if (commit_lock_file(&head_lock) < 0) { | |
1881 | rollback_lock_file(&head_lock); | |
93b3df6f | 1882 | return error(_("failed to finalize '%s'."), git_path_head_file()); |
311fd397 JS |
1883 | } |
1884 | return 0; | |
043a4492 RR |
1885 | } |
1886 | ||
1e41229d SB |
1887 | static int rollback_is_safe(void) |
1888 | { | |
1889 | struct strbuf sb = STRBUF_INIT; | |
1890 | struct object_id expected_head, actual_head; | |
1891 | ||
1892 | if (strbuf_read_file(&sb, git_path_abort_safety_file(), 0) >= 0) { | |
1893 | strbuf_trim(&sb); | |
1894 | if (get_oid_hex(sb.buf, &expected_head)) { | |
1895 | strbuf_release(&sb); | |
1896 | die(_("could not parse %s"), git_path_abort_safety_file()); | |
1897 | } | |
1898 | strbuf_release(&sb); | |
1899 | } | |
1900 | else if (errno == ENOENT) | |
1901 | oidclr(&expected_head); | |
1902 | else | |
1903 | die_errno(_("could not read '%s'"), git_path_abort_safety_file()); | |
1904 | ||
1905 | if (get_oid("HEAD", &actual_head)) | |
1906 | oidclr(&actual_head); | |
1907 | ||
1908 | return !oidcmp(&actual_head, &expected_head); | |
1909 | } | |
1910 | ||
092bbcdf | 1911 | static int reset_for_rollback(const struct object_id *oid) |
043a4492 RR |
1912 | { |
1913 | const char *argv[4]; /* reset --merge <arg> + NULL */ | |
1e41229d | 1914 | |
043a4492 RR |
1915 | argv[0] = "reset"; |
1916 | argv[1] = "--merge"; | |
092bbcdf | 1917 | argv[2] = oid_to_hex(oid); |
043a4492 RR |
1918 | argv[3] = NULL; |
1919 | return run_command_v_opt(argv, RUN_GIT_CMD); | |
1920 | } | |
1921 | ||
1922 | static int rollback_single_pick(void) | |
1923 | { | |
092bbcdf | 1924 | struct object_id head_oid; |
043a4492 | 1925 | |
f932729c JK |
1926 | if (!file_exists(git_path_cherry_pick_head()) && |
1927 | !file_exists(git_path_revert_head())) | |
043a4492 | 1928 | return error(_("no cherry-pick or revert in progress")); |
34c290a6 | 1929 | if (read_ref_full("HEAD", 0, &head_oid, NULL)) |
043a4492 | 1930 | return error(_("cannot resolve HEAD")); |
092bbcdf | 1931 | if (is_null_oid(&head_oid)) |
043a4492 | 1932 | return error(_("cannot abort from a branch yet to be born")); |
092bbcdf | 1933 | return reset_for_rollback(&head_oid); |
043a4492 RR |
1934 | } |
1935 | ||
2863584f | 1936 | int sequencer_rollback(struct replay_opts *opts) |
043a4492 | 1937 | { |
043a4492 | 1938 | FILE *f; |
092bbcdf | 1939 | struct object_id oid; |
043a4492 | 1940 | struct strbuf buf = STRBUF_INIT; |
092bbcdf | 1941 | const char *p; |
043a4492 | 1942 | |
f932729c | 1943 | f = fopen(git_path_head_file(), "r"); |
043a4492 RR |
1944 | if (!f && errno == ENOENT) { |
1945 | /* | |
1946 | * There is no multiple-cherry-pick in progress. | |
1947 | * If CHERRY_PICK_HEAD or REVERT_HEAD indicates | |
1948 | * a single-cherry-pick in progress, abort that. | |
1949 | */ | |
1950 | return rollback_single_pick(); | |
1951 | } | |
1952 | if (!f) | |
f7ed1953 | 1953 | return error_errno(_("cannot open '%s'"), git_path_head_file()); |
8f309aeb | 1954 | if (strbuf_getline_lf(&buf, f)) { |
f7ed1953 | 1955 | error(_("cannot read '%s': %s"), git_path_head_file(), |
f932729c | 1956 | ferror(f) ? strerror(errno) : _("unexpected end of file")); |
043a4492 RR |
1957 | fclose(f); |
1958 | goto fail; | |
1959 | } | |
1960 | fclose(f); | |
092bbcdf | 1961 | if (parse_oid_hex(buf.buf, &oid, &p) || *p != '\0') { |
043a4492 | 1962 | error(_("stored pre-cherry-pick HEAD file '%s' is corrupt"), |
f932729c | 1963 | git_path_head_file()); |
043a4492 RR |
1964 | goto fail; |
1965 | } | |
092bbcdf | 1966 | if (is_null_oid(&oid)) { |
0f974e21 MG |
1967 | error(_("cannot abort from a branch yet to be born")); |
1968 | goto fail; | |
1969 | } | |
1e41229d SB |
1970 | |
1971 | if (!rollback_is_safe()) { | |
1972 | /* Do not error, just do not rollback */ | |
1973 | warning(_("You seem to have moved HEAD. " | |
1974 | "Not rewinding, check your HEAD!")); | |
1975 | } else | |
092bbcdf | 1976 | if (reset_for_rollback(&oid)) |
043a4492 | 1977 | goto fail; |
043a4492 | 1978 | strbuf_release(&buf); |
2863584f | 1979 | return sequencer_remove_state(opts); |
043a4492 RR |
1980 | fail: |
1981 | strbuf_release(&buf); | |
1982 | return -1; | |
1983 | } | |
1984 | ||
004fefa7 | 1985 | static int save_todo(struct todo_list *todo_list, struct replay_opts *opts) |
043a4492 | 1986 | { |
043a4492 | 1987 | static struct lock_file todo_lock; |
004fefa7 JS |
1988 | const char *todo_path = get_todo_path(opts); |
1989 | int next = todo_list->current, offset, fd; | |
043a4492 | 1990 | |
84583957 JS |
1991 | /* |
1992 | * rebase -i writes "git-rebase-todo" without the currently executing | |
1993 | * command, appending it to "done" instead. | |
1994 | */ | |
1995 | if (is_rebase_i(opts)) | |
1996 | next++; | |
1997 | ||
004fefa7 | 1998 | fd = hold_lock_file_for_update(&todo_lock, todo_path, 0); |
221675de | 1999 | if (fd < 0) |
93b3df6f | 2000 | return error_errno(_("could not lock '%s'"), todo_path); |
004fefa7 JS |
2001 | offset = next < todo_list->nr ? |
2002 | todo_list->items[next].offset_in_buf : todo_list->buf.len; | |
2003 | if (write_in_full(fd, todo_list->buf.buf + offset, | |
2004 | todo_list->buf.len - offset) < 0) | |
93b3df6f | 2005 | return error_errno(_("could not write to '%s'"), todo_path); |
004fefa7 | 2006 | if (commit_lock_file(&todo_lock) < 0) |
93b3df6f | 2007 | return error(_("failed to finalize '%s'."), todo_path); |
1df6df0c JS |
2008 | |
2009 | if (is_rebase_i(opts)) { | |
2010 | const char *done_path = rebase_path_done(); | |
2011 | int fd = open(done_path, O_CREAT | O_WRONLY | O_APPEND, 0666); | |
2012 | int prev_offset = !next ? 0 : | |
2013 | todo_list->items[next - 1].offset_in_buf; | |
2014 | ||
2015 | if (fd >= 0 && offset > prev_offset && | |
2016 | write_in_full(fd, todo_list->buf.buf + prev_offset, | |
2017 | offset - prev_offset) < 0) { | |
2018 | close(fd); | |
2019 | return error_errno(_("could not write to '%s'"), | |
2020 | done_path); | |
2021 | } | |
2022 | if (fd >= 0) | |
2023 | close(fd); | |
2024 | } | |
221675de | 2025 | return 0; |
043a4492 RR |
2026 | } |
2027 | ||
88d5a271 | 2028 | static int save_opts(struct replay_opts *opts) |
043a4492 | 2029 | { |
f932729c | 2030 | const char *opts_file = git_path_opts_file(); |
88d5a271 | 2031 | int res = 0; |
043a4492 RR |
2032 | |
2033 | if (opts->no_commit) | |
88d5a271 | 2034 | res |= git_config_set_in_file_gently(opts_file, "options.no-commit", "true"); |
043a4492 | 2035 | if (opts->edit) |
88d5a271 | 2036 | res |= git_config_set_in_file_gently(opts_file, "options.edit", "true"); |
043a4492 | 2037 | if (opts->signoff) |
88d5a271 | 2038 | res |= git_config_set_in_file_gently(opts_file, "options.signoff", "true"); |
043a4492 | 2039 | if (opts->record_origin) |
88d5a271 | 2040 | res |= git_config_set_in_file_gently(opts_file, "options.record-origin", "true"); |
043a4492 | 2041 | if (opts->allow_ff) |
88d5a271 | 2042 | res |= git_config_set_in_file_gently(opts_file, "options.allow-ff", "true"); |
043a4492 RR |
2043 | if (opts->mainline) { |
2044 | struct strbuf buf = STRBUF_INIT; | |
2045 | strbuf_addf(&buf, "%d", opts->mainline); | |
88d5a271 | 2046 | res |= git_config_set_in_file_gently(opts_file, "options.mainline", buf.buf); |
043a4492 RR |
2047 | strbuf_release(&buf); |
2048 | } | |
2049 | if (opts->strategy) | |
88d5a271 | 2050 | res |= git_config_set_in_file_gently(opts_file, "options.strategy", opts->strategy); |
3253553e | 2051 | if (opts->gpg_sign) |
88d5a271 | 2052 | res |= git_config_set_in_file_gently(opts_file, "options.gpg-sign", opts->gpg_sign); |
043a4492 RR |
2053 | if (opts->xopts) { |
2054 | int i; | |
2055 | for (i = 0; i < opts->xopts_nr; i++) | |
88d5a271 | 2056 | res |= git_config_set_multivar_in_file_gently(opts_file, |
043a4492 RR |
2057 | "options.strategy-option", |
2058 | opts->xopts[i], "^$", 0); | |
2059 | } | |
8d8cb4b0 PW |
2060 | if (opts->allow_rerere_auto) |
2061 | res |= git_config_set_in_file_gently(opts_file, "options.allow-rerere-auto", | |
2062 | opts->allow_rerere_auto == RERERE_AUTOUPDATE ? | |
2063 | "true" : "false"); | |
88d5a271 | 2064 | return res; |
043a4492 RR |
2065 | } |
2066 | ||
56dc3ab0 JS |
2067 | static int make_patch(struct commit *commit, struct replay_opts *opts) |
2068 | { | |
2069 | struct strbuf buf = STRBUF_INIT; | |
2070 | struct rev_info log_tree_opt; | |
2071 | const char *subject, *p; | |
2072 | int res = 0; | |
2073 | ||
2074 | p = short_commit_name(commit); | |
2075 | if (write_message(p, strlen(p), rebase_path_stopped_sha(), 1) < 0) | |
2076 | return -1; | |
2077 | ||
2078 | strbuf_addf(&buf, "%s/patch", get_dir(opts)); | |
2079 | memset(&log_tree_opt, 0, sizeof(log_tree_opt)); | |
2080 | init_revisions(&log_tree_opt, NULL); | |
2081 | log_tree_opt.abbrev = 0; | |
2082 | log_tree_opt.diff = 1; | |
2083 | log_tree_opt.diffopt.output_format = DIFF_FORMAT_PATCH; | |
2084 | log_tree_opt.disable_stdin = 1; | |
2085 | log_tree_opt.no_commit_id = 1; | |
2086 | log_tree_opt.diffopt.file = fopen(buf.buf, "w"); | |
2087 | log_tree_opt.diffopt.use_color = GIT_COLOR_NEVER; | |
2088 | if (!log_tree_opt.diffopt.file) | |
2089 | res |= error_errno(_("could not open '%s'"), buf.buf); | |
2090 | else { | |
2091 | res |= log_tree_commit(&log_tree_opt, commit); | |
2092 | fclose(log_tree_opt.diffopt.file); | |
2093 | } | |
2094 | strbuf_reset(&buf); | |
2095 | ||
2096 | strbuf_addf(&buf, "%s/message", get_dir(opts)); | |
2097 | if (!file_exists(buf.buf)) { | |
2098 | const char *commit_buffer = get_commit_buffer(commit, NULL); | |
2099 | find_commit_subject(commit_buffer, &subject); | |
2100 | res |= write_message(subject, strlen(subject), buf.buf, 1); | |
2101 | unuse_commit_buffer(commit, commit_buffer); | |
2102 | } | |
2103 | strbuf_release(&buf); | |
2104 | ||
2105 | return res; | |
2106 | } | |
2107 | ||
2108 | static int intend_to_amend(void) | |
2109 | { | |
092bbcdf | 2110 | struct object_id head; |
56dc3ab0 JS |
2111 | char *p; |
2112 | ||
092bbcdf | 2113 | if (get_oid("HEAD", &head)) |
56dc3ab0 JS |
2114 | return error(_("cannot read HEAD")); |
2115 | ||
092bbcdf | 2116 | p = oid_to_hex(&head); |
56dc3ab0 JS |
2117 | return write_message(p, strlen(p), rebase_path_amend(), 1); |
2118 | } | |
2119 | ||
2120 | static int error_with_patch(struct commit *commit, | |
2121 | const char *subject, int subject_len, | |
2122 | struct replay_opts *opts, int exit_code, int to_amend) | |
2123 | { | |
2124 | if (make_patch(commit, opts)) | |
2125 | return -1; | |
2126 | ||
2127 | if (to_amend) { | |
2128 | if (intend_to_amend()) | |
2129 | return -1; | |
2130 | ||
2131 | fprintf(stderr, "You can amend the commit now, with\n" | |
2132 | "\n" | |
2133 | " git commit --amend %s\n" | |
2134 | "\n" | |
2135 | "Once you are satisfied with your changes, run\n" | |
2136 | "\n" | |
2137 | " git rebase --continue\n", gpg_sign_opt_quoted(opts)); | |
2138 | } else if (exit_code) | |
2139 | fprintf(stderr, "Could not apply %s... %.*s\n", | |
2140 | short_commit_name(commit), subject_len, subject); | |
2141 | ||
2142 | return exit_code; | |
2143 | } | |
2144 | ||
6e98de72 JS |
2145 | static int error_failed_squash(struct commit *commit, |
2146 | struct replay_opts *opts, int subject_len, const char *subject) | |
2147 | { | |
2148 | if (rename(rebase_path_squash_msg(), rebase_path_message())) | |
2149 | return error(_("could not rename '%s' to '%s'"), | |
2150 | rebase_path_squash_msg(), rebase_path_message()); | |
2151 | unlink(rebase_path_fixup_msg()); | |
ca03e067 JK |
2152 | unlink(git_path_merge_msg()); |
2153 | if (copy_file(git_path_merge_msg(), rebase_path_message(), 0666)) | |
6e98de72 | 2154 | return error(_("could not copy '%s' to '%s'"), |
ca03e067 | 2155 | rebase_path_message(), git_path_merge_msg()); |
6e98de72 JS |
2156 | return error_with_patch(commit, subject, subject_len, opts, 1, 0); |
2157 | } | |
2158 | ||
311af526 JS |
2159 | static int do_exec(const char *command_line) |
2160 | { | |
09d7b6c6 | 2161 | struct argv_array child_env = ARGV_ARRAY_INIT; |
311af526 JS |
2162 | const char *child_argv[] = { NULL, NULL }; |
2163 | int dirty, status; | |
2164 | ||
2165 | fprintf(stderr, "Executing: %s\n", command_line); | |
2166 | child_argv[0] = command_line; | |
09d7b6c6 JK |
2167 | argv_array_pushf(&child_env, "GIT_DIR=%s", absolute_path(get_git_dir())); |
2168 | status = run_command_v_opt_cd_env(child_argv, RUN_USING_SHELL, NULL, | |
2169 | child_env.argv); | |
311af526 JS |
2170 | |
2171 | /* force re-reading of the cache */ | |
2172 | if (discard_cache() < 0 || read_cache() < 0) | |
2173 | return error(_("could not read index")); | |
2174 | ||
2175 | dirty = require_clean_work_tree("rebase", NULL, 1, 1); | |
2176 | ||
2177 | if (status) { | |
2178 | warning(_("execution failed: %s\n%s" | |
2179 | "You can fix the problem, and then run\n" | |
2180 | "\n" | |
2181 | " git rebase --continue\n" | |
2182 | "\n"), | |
2183 | command_line, | |
2184 | dirty ? N_("and made changes to the index and/or the " | |
2185 | "working tree\n") : ""); | |
2186 | if (status == 127) | |
2187 | /* command not found */ | |
2188 | status = 1; | |
2189 | } else if (dirty) { | |
2190 | warning(_("execution succeeded: %s\nbut " | |
2191 | "left changes to the index and/or the working tree\n" | |
2192 | "Commit or stash your changes, and then run\n" | |
2193 | "\n" | |
2194 | " git rebase --continue\n" | |
2195 | "\n"), command_line); | |
2196 | status = 1; | |
2197 | } | |
2198 | ||
09d7b6c6 JK |
2199 | argv_array_clear(&child_env); |
2200 | ||
311af526 JS |
2201 | return status; |
2202 | } | |
2203 | ||
6e98de72 JS |
2204 | static int is_final_fixup(struct todo_list *todo_list) |
2205 | { | |
2206 | int i = todo_list->current; | |
2207 | ||
2208 | if (!is_fixup(todo_list->items[i].command)) | |
2209 | return 0; | |
2210 | ||
2211 | while (++i < todo_list->nr) | |
2212 | if (is_fixup(todo_list->items[i].command)) | |
2213 | return 0; | |
2214 | else if (!is_noop(todo_list->items[i].command)) | |
2215 | break; | |
2216 | return 1; | |
2217 | } | |
2218 | ||
25cb8df9 JS |
2219 | static enum todo_command peek_command(struct todo_list *todo_list, int offset) |
2220 | { | |
2221 | int i; | |
2222 | ||
2223 | for (i = todo_list->current + offset; i < todo_list->nr; i++) | |
2224 | if (!is_noop(todo_list->items[i].command)) | |
2225 | return todo_list->items[i].command; | |
2226 | ||
2227 | return -1; | |
2228 | } | |
2229 | ||
796c7972 JS |
2230 | static int apply_autostash(struct replay_opts *opts) |
2231 | { | |
2232 | struct strbuf stash_sha1 = STRBUF_INIT; | |
2233 | struct child_process child = CHILD_PROCESS_INIT; | |
2234 | int ret = 0; | |
2235 | ||
2236 | if (!read_oneliner(&stash_sha1, rebase_path_autostash(), 1)) { | |
2237 | strbuf_release(&stash_sha1); | |
2238 | return 0; | |
2239 | } | |
2240 | strbuf_trim(&stash_sha1); | |
2241 | ||
2242 | child.git_cmd = 1; | |
79a62269 PW |
2243 | child.no_stdout = 1; |
2244 | child.no_stderr = 1; | |
796c7972 JS |
2245 | argv_array_push(&child.args, "stash"); |
2246 | argv_array_push(&child.args, "apply"); | |
2247 | argv_array_push(&child.args, stash_sha1.buf); | |
2248 | if (!run_command(&child)) | |
cdb866b3 | 2249 | fprintf(stderr, _("Applied autostash.\n")); |
796c7972 JS |
2250 | else { |
2251 | struct child_process store = CHILD_PROCESS_INIT; | |
2252 | ||
2253 | store.git_cmd = 1; | |
2254 | argv_array_push(&store.args, "stash"); | |
2255 | argv_array_push(&store.args, "store"); | |
2256 | argv_array_push(&store.args, "-m"); | |
2257 | argv_array_push(&store.args, "autostash"); | |
2258 | argv_array_push(&store.args, "-q"); | |
2259 | argv_array_push(&store.args, stash_sha1.buf); | |
2260 | if (run_command(&store)) | |
2261 | ret = error(_("cannot store %s"), stash_sha1.buf); | |
2262 | else | |
cdb866b3 JS |
2263 | fprintf(stderr, |
2264 | _("Applying autostash resulted in conflicts.\n" | |
2265 | "Your changes are safe in the stash.\n" | |
2266 | "You can run \"git stash pop\" or" | |
2267 | " \"git stash drop\" at any time.\n")); | |
796c7972 JS |
2268 | } |
2269 | ||
2270 | strbuf_release(&stash_sha1); | |
2271 | return ret; | |
2272 | } | |
2273 | ||
96e832a5 JS |
2274 | static const char *reflog_message(struct replay_opts *opts, |
2275 | const char *sub_action, const char *fmt, ...) | |
2276 | { | |
2277 | va_list ap; | |
2278 | static struct strbuf buf = STRBUF_INIT; | |
2279 | ||
2280 | va_start(ap, fmt); | |
2281 | strbuf_reset(&buf); | |
2282 | strbuf_addstr(&buf, action_name(opts)); | |
2283 | if (sub_action) | |
2284 | strbuf_addf(&buf, " (%s)", sub_action); | |
2285 | if (fmt) { | |
2286 | strbuf_addstr(&buf, ": "); | |
2287 | strbuf_vaddf(&buf, fmt, ap); | |
2288 | } | |
2289 | va_end(ap); | |
2290 | ||
2291 | return buf.buf; | |
2292 | } | |
2293 | ||
004fefa7 | 2294 | static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts) |
043a4492 | 2295 | { |
56dc3ab0 | 2296 | int res = 0; |
043a4492 RR |
2297 | |
2298 | setenv(GIT_REFLOG_ACTION, action_name(opts), 0); | |
2299 | if (opts->allow_ff) | |
2300 | assert(!(opts->signoff || opts->no_commit || | |
2301 | opts->record_origin || opts->edit)); | |
0d9c6dc9 JS |
2302 | if (read_and_refresh_cache(opts)) |
2303 | return -1; | |
043a4492 | 2304 | |
004fefa7 JS |
2305 | while (todo_list->current < todo_list->nr) { |
2306 | struct todo_item *item = todo_list->items + todo_list->current; | |
2307 | if (save_todo(todo_list, opts)) | |
221675de | 2308 | return -1; |
6e98de72 | 2309 | if (is_rebase_i(opts)) { |
ef80069a JS |
2310 | if (item->command != TODO_COMMENT) { |
2311 | FILE *f = fopen(rebase_path_msgnum(), "w"); | |
2312 | ||
2313 | todo_list->done_nr++; | |
2314 | ||
2315 | if (f) { | |
2316 | fprintf(f, "%d\n", todo_list->done_nr); | |
2317 | fclose(f); | |
2318 | } | |
968492e4 | 2319 | fprintf(stderr, "Rebasing (%d/%d)%s", |
ef80069a | 2320 | todo_list->done_nr, |
968492e4 JS |
2321 | todo_list->total_nr, |
2322 | opts->verbose ? "\n" : "\r"); | |
ef80069a | 2323 | } |
6e98de72 JS |
2324 | unlink(rebase_path_message()); |
2325 | unlink(rebase_path_author_script()); | |
2326 | unlink(rebase_path_stopped_sha()); | |
2327 | unlink(rebase_path_amend()); | |
2328 | } | |
2329 | if (item->command <= TODO_SQUASH) { | |
8ab37ef2 JS |
2330 | if (is_rebase_i(opts)) |
2331 | setenv("GIT_REFLOG_ACTION", reflog_message(opts, | |
2332 | command_to_string(item->command), NULL), | |
2333 | 1); | |
25c43667 | 2334 | res = do_pick_commit(item->command, item->commit, |
6e98de72 | 2335 | opts, is_final_fixup(todo_list)); |
9d7bf3cf JS |
2336 | if (is_rebase_i(opts) && res < 0) { |
2337 | /* Reschedule */ | |
2338 | todo_list->current--; | |
2339 | if (save_todo(todo_list, opts)) | |
2340 | return -1; | |
2341 | } | |
56dc3ab0 JS |
2342 | if (item->command == TODO_EDIT) { |
2343 | struct commit *commit = item->commit; | |
2344 | if (!res) | |
99429213 | 2345 | fprintf(stderr, |
a42e1b41 | 2346 | _("Stopped at %s... %.*s\n"), |
56dc3ab0 JS |
2347 | short_commit_name(commit), |
2348 | item->arg_len, item->arg); | |
2349 | return error_with_patch(commit, | |
2350 | item->arg, item->arg_len, opts, res, | |
2351 | !res); | |
2352 | } | |
25cb8df9 JS |
2353 | if (is_rebase_i(opts) && !res) |
2354 | record_in_rewritten(&item->commit->object.oid, | |
2355 | peek_command(todo_list, 1)); | |
6e98de72 JS |
2356 | if (res && is_fixup(item->command)) { |
2357 | if (res == 1) | |
2358 | intend_to_amend(); | |
2359 | return error_failed_squash(item->commit, opts, | |
2360 | item->arg_len, item->arg); | |
4a5146f9 JS |
2361 | } else if (res && is_rebase_i(opts)) |
2362 | return res | error_with_patch(item->commit, | |
04efc8b5 JS |
2363 | item->arg, item->arg_len, opts, res, |
2364 | item->command == TODO_REWORD); | |
311af526 JS |
2365 | } else if (item->command == TODO_EXEC) { |
2366 | char *end_of_arg = (char *)(item->arg + item->arg_len); | |
2367 | int saved = *end_of_arg; | |
54fd3243 | 2368 | struct stat st; |
311af526 JS |
2369 | |
2370 | *end_of_arg = '\0'; | |
2371 | res = do_exec(item->arg); | |
2372 | *end_of_arg = saved; | |
54fd3243 SH |
2373 | |
2374 | /* Reread the todo file if it has changed. */ | |
2375 | if (res) | |
2376 | ; /* fall through */ | |
2377 | else if (stat(get_todo_path(opts), &st)) | |
2378 | res = error_errno(_("could not stat '%s'"), | |
2379 | get_todo_path(opts)); | |
2380 | else if (match_stat_data(&todo_list->stat, &st)) { | |
2381 | todo_list_release(todo_list); | |
2382 | if (read_populate_todo(todo_list, opts)) | |
2383 | res = -1; /* message was printed */ | |
2384 | /* `current` will be incremented below */ | |
2385 | todo_list->current = -1; | |
2386 | } | |
56dc3ab0 | 2387 | } else if (!is_noop(item->command)) |
25c43667 JS |
2388 | return error(_("unknown command %d"), item->command); |
2389 | ||
004fefa7 | 2390 | todo_list->current++; |
043a4492 RR |
2391 | if (res) |
2392 | return res; | |
2393 | } | |
2394 | ||
56dc3ab0 | 2395 | if (is_rebase_i(opts)) { |
4b83ce9f | 2396 | struct strbuf head_ref = STRBUF_INIT, buf = STRBUF_INIT; |
25cb8df9 | 2397 | struct stat st; |
556907f1 | 2398 | |
56dc3ab0 JS |
2399 | /* Stopped in the middle, as planned? */ |
2400 | if (todo_list->current < todo_list->nr) | |
2401 | return 0; | |
556907f1 | 2402 | |
4b83ce9f JS |
2403 | if (read_oneliner(&head_ref, rebase_path_head_name(), 0) && |
2404 | starts_with(head_ref.buf, "refs/")) { | |
96e832a5 | 2405 | const char *msg; |
092bbcdf | 2406 | struct object_id head, orig; |
4b83ce9f JS |
2407 | int res; |
2408 | ||
092bbcdf | 2409 | if (get_oid("HEAD", &head)) { |
4b83ce9f JS |
2410 | res = error(_("cannot read HEAD")); |
2411 | cleanup_head_ref: | |
2412 | strbuf_release(&head_ref); | |
2413 | strbuf_release(&buf); | |
2414 | return res; | |
2415 | } | |
2416 | if (!read_oneliner(&buf, rebase_path_orig_head(), 0) || | |
092bbcdf | 2417 | get_oid_hex(buf.buf, &orig)) { |
4b83ce9f JS |
2418 | res = error(_("could not read orig-head")); |
2419 | goto cleanup_head_ref; | |
2420 | } | |
4ab867b8 | 2421 | strbuf_reset(&buf); |
4b83ce9f JS |
2422 | if (!read_oneliner(&buf, rebase_path_onto(), 0)) { |
2423 | res = error(_("could not read 'onto'")); | |
2424 | goto cleanup_head_ref; | |
2425 | } | |
96e832a5 JS |
2426 | msg = reflog_message(opts, "finish", "%s onto %s", |
2427 | head_ref.buf, buf.buf); | |
ae077771 | 2428 | if (update_ref(msg, head_ref.buf, &head, &orig, |
2429 | REF_NODEREF, UPDATE_REFS_MSG_ON_ERR)) { | |
4b83ce9f JS |
2430 | res = error(_("could not update %s"), |
2431 | head_ref.buf); | |
2432 | goto cleanup_head_ref; | |
2433 | } | |
96e832a5 | 2434 | msg = reflog_message(opts, "finish", "returning to %s", |
4b83ce9f | 2435 | head_ref.buf); |
96e832a5 | 2436 | if (create_symref("HEAD", head_ref.buf, msg)) { |
4b83ce9f JS |
2437 | res = error(_("could not update HEAD to %s"), |
2438 | head_ref.buf); | |
2439 | goto cleanup_head_ref; | |
2440 | } | |
2441 | strbuf_reset(&buf); | |
2442 | } | |
2443 | ||
556907f1 JS |
2444 | if (opts->verbose) { |
2445 | struct rev_info log_tree_opt; | |
2446 | struct object_id orig, head; | |
2447 | ||
2448 | memset(&log_tree_opt, 0, sizeof(log_tree_opt)); | |
2449 | init_revisions(&log_tree_opt, NULL); | |
2450 | log_tree_opt.diff = 1; | |
2451 | log_tree_opt.diffopt.output_format = | |
2452 | DIFF_FORMAT_DIFFSTAT; | |
2453 | log_tree_opt.disable_stdin = 1; | |
2454 | ||
2455 | if (read_oneliner(&buf, rebase_path_orig_head(), 0) && | |
e82caf38 | 2456 | !get_oid(buf.buf, &orig) && |
2457 | !get_oid("HEAD", &head)) { | |
66f414f8 BW |
2458 | diff_tree_oid(&orig, &head, "", |
2459 | &log_tree_opt.diffopt); | |
556907f1 JS |
2460 | log_tree_diff_flush(&log_tree_opt); |
2461 | } | |
2462 | } | |
25cb8df9 JS |
2463 | flush_rewritten_pending(); |
2464 | if (!stat(rebase_path_rewritten_list(), &st) && | |
2465 | st.st_size > 0) { | |
2466 | struct child_process child = CHILD_PROCESS_INIT; | |
79516045 JS |
2467 | const char *post_rewrite_hook = |
2468 | find_hook("post-rewrite"); | |
25cb8df9 JS |
2469 | |
2470 | child.in = open(rebase_path_rewritten_list(), O_RDONLY); | |
2471 | child.git_cmd = 1; | |
2472 | argv_array_push(&child.args, "notes"); | |
2473 | argv_array_push(&child.args, "copy"); | |
2474 | argv_array_push(&child.args, "--for-rewrite=rebase"); | |
2475 | /* we don't care if this copying failed */ | |
2476 | run_command(&child); | |
79516045 JS |
2477 | |
2478 | if (post_rewrite_hook) { | |
2479 | struct child_process hook = CHILD_PROCESS_INIT; | |
2480 | ||
2481 | hook.in = open(rebase_path_rewritten_list(), | |
2482 | O_RDONLY); | |
2483 | hook.stdout_to_stderr = 1; | |
2484 | argv_array_push(&hook.args, post_rewrite_hook); | |
2485 | argv_array_push(&hook.args, "rebase"); | |
2486 | /* we don't care if this hook failed */ | |
2487 | run_command(&hook); | |
2488 | } | |
25cb8df9 | 2489 | } |
796c7972 | 2490 | apply_autostash(opts); |
25cb8df9 | 2491 | |
5da4966f JS |
2492 | fprintf(stderr, "Successfully rebased and updated %s.\n", |
2493 | head_ref.buf); | |
2494 | ||
556907f1 | 2495 | strbuf_release(&buf); |
4b83ce9f | 2496 | strbuf_release(&head_ref); |
56dc3ab0 JS |
2497 | } |
2498 | ||
043a4492 RR |
2499 | /* |
2500 | * Sequence of picks finished successfully; cleanup by | |
2501 | * removing the .git/sequencer directory | |
2502 | */ | |
2863584f | 2503 | return sequencer_remove_state(opts); |
043a4492 RR |
2504 | } |
2505 | ||
2506 | static int continue_single_pick(void) | |
2507 | { | |
2508 | const char *argv[] = { "commit", NULL }; | |
2509 | ||
f932729c JK |
2510 | if (!file_exists(git_path_cherry_pick_head()) && |
2511 | !file_exists(git_path_revert_head())) | |
043a4492 RR |
2512 | return error(_("no cherry-pick or revert in progress")); |
2513 | return run_command_v_opt(argv, RUN_GIT_CMD); | |
2514 | } | |
2515 | ||
9d93ccd1 JS |
2516 | static int commit_staged_changes(struct replay_opts *opts) |
2517 | { | |
789b3eff | 2518 | unsigned int flags = ALLOW_EMPTY | EDIT_MSG; |
9d93ccd1 JS |
2519 | |
2520 | if (has_unstaged_changes(1)) | |
2521 | return error(_("cannot rebase: You have unstaged changes.")); | |
52632209 | 2522 | if (!has_uncommitted_changes(0)) { |
ca03e067 | 2523 | const char *cherry_pick_head = git_path_cherry_pick_head(); |
52632209 JS |
2524 | |
2525 | if (file_exists(cherry_pick_head) && unlink(cherry_pick_head)) | |
2526 | return error(_("could not remove CHERRY_PICK_HEAD")); | |
9d93ccd1 | 2527 | return 0; |
52632209 | 2528 | } |
9d93ccd1 JS |
2529 | |
2530 | if (file_exists(rebase_path_amend())) { | |
2531 | struct strbuf rev = STRBUF_INIT; | |
092bbcdf | 2532 | struct object_id head, to_amend; |
9d93ccd1 | 2533 | |
092bbcdf | 2534 | if (get_oid("HEAD", &head)) |
9d93ccd1 JS |
2535 | return error(_("cannot amend non-existing commit")); |
2536 | if (!read_oneliner(&rev, rebase_path_amend(), 0)) | |
2537 | return error(_("invalid file: '%s'"), rebase_path_amend()); | |
092bbcdf | 2538 | if (get_oid_hex(rev.buf, &to_amend)) |
9d93ccd1 JS |
2539 | return error(_("invalid contents: '%s'"), |
2540 | rebase_path_amend()); | |
092bbcdf | 2541 | if (oidcmp(&head, &to_amend)) |
9d93ccd1 JS |
2542 | return error(_("\nYou have uncommitted changes in your " |
2543 | "working tree. Please, commit them\n" | |
2544 | "first and then run 'git rebase " | |
2545 | "--continue' again.")); | |
2546 | ||
2547 | strbuf_release(&rev); | |
789b3eff | 2548 | flags |= AMEND_MSG; |
9d93ccd1 JS |
2549 | } |
2550 | ||
789b3eff | 2551 | if (run_git_commit(rebase_path_message(), opts, flags)) |
9d93ccd1 JS |
2552 | return error(_("could not commit staged changes.")); |
2553 | unlink(rebase_path_amend()); | |
2554 | return 0; | |
2555 | } | |
2556 | ||
2863584f | 2557 | int sequencer_continue(struct replay_opts *opts) |
043a4492 | 2558 | { |
004fefa7 JS |
2559 | struct todo_list todo_list = TODO_LIST_INIT; |
2560 | int res; | |
043a4492 | 2561 | |
2863584f JS |
2562 | if (read_and_refresh_cache(opts)) |
2563 | return -1; | |
2564 | ||
9d93ccd1 JS |
2565 | if (is_rebase_i(opts)) { |
2566 | if (commit_staged_changes(opts)) | |
2567 | return -1; | |
4258a6da | 2568 | } else if (!file_exists(get_todo_path(opts))) |
043a4492 | 2569 | return continue_single_pick(); |
004fefa7 | 2570 | if (read_populate_opts(opts)) |
0ae42a03 | 2571 | return -1; |
004fefa7 JS |
2572 | if ((res = read_populate_todo(&todo_list, opts))) |
2573 | goto release_todo_list; | |
043a4492 | 2574 | |
4258a6da JS |
2575 | if (!is_rebase_i(opts)) { |
2576 | /* Verify that the conflict has been resolved */ | |
2577 | if (file_exists(git_path_cherry_pick_head()) || | |
2578 | file_exists(git_path_revert_head())) { | |
2579 | res = continue_single_pick(); | |
2580 | if (res) | |
2581 | goto release_todo_list; | |
2582 | } | |
02f2f56b | 2583 | if (index_differs_from("HEAD", NULL, 0)) { |
4258a6da | 2584 | res = error_dirty_index(opts); |
004fefa7 | 2585 | goto release_todo_list; |
4258a6da JS |
2586 | } |
2587 | todo_list.current++; | |
ca98c6d4 JS |
2588 | } else if (file_exists(rebase_path_stopped_sha())) { |
2589 | struct strbuf buf = STRBUF_INIT; | |
2590 | struct object_id oid; | |
2591 | ||
2592 | if (read_oneliner(&buf, rebase_path_stopped_sha(), 1) && | |
e82caf38 | 2593 | !get_oid_committish(buf.buf, &oid)) |
ca98c6d4 JS |
2594 | record_in_rewritten(&oid, peek_command(&todo_list, 0)); |
2595 | strbuf_release(&buf); | |
043a4492 | 2596 | } |
4258a6da | 2597 | |
004fefa7 JS |
2598 | res = pick_commits(&todo_list, opts); |
2599 | release_todo_list: | |
2600 | todo_list_release(&todo_list); | |
2601 | return res; | |
043a4492 RR |
2602 | } |
2603 | ||
2604 | static int single_pick(struct commit *cmit, struct replay_opts *opts) | |
2605 | { | |
2606 | setenv(GIT_REFLOG_ACTION, action_name(opts), 0); | |
004fefa7 | 2607 | return do_pick_commit(opts->action == REPLAY_PICK ? |
6e98de72 | 2608 | TODO_PICK : TODO_REVERT, cmit, opts, 0); |
043a4492 RR |
2609 | } |
2610 | ||
2611 | int sequencer_pick_revisions(struct replay_opts *opts) | |
2612 | { | |
004fefa7 | 2613 | struct todo_list todo_list = TODO_LIST_INIT; |
1e43ed98 | 2614 | struct object_id oid; |
004fefa7 | 2615 | int i, res; |
043a4492 | 2616 | |
2863584f | 2617 | assert(opts->revs); |
0d9c6dc9 JS |
2618 | if (read_and_refresh_cache(opts)) |
2619 | return -1; | |
043a4492 | 2620 | |
21246dbb | 2621 | for (i = 0; i < opts->revs->pending.nr; i++) { |
1e43ed98 | 2622 | struct object_id oid; |
21246dbb MV |
2623 | const char *name = opts->revs->pending.objects[i].name; |
2624 | ||
2625 | /* This happens when using --stdin. */ | |
2626 | if (!strlen(name)) | |
2627 | continue; | |
2628 | ||
1e43ed98 | 2629 | if (!get_oid(name, &oid)) { |
bc83266a | 2630 | if (!lookup_commit_reference_gently(&oid, 1)) { |
1e43ed98 | 2631 | enum object_type type = sha1_object_info(oid.hash, NULL); |
b9b946d4 JS |
2632 | return error(_("%s: can't cherry-pick a %s"), |
2633 | name, typename(type)); | |
7c0b0d8d | 2634 | } |
21246dbb | 2635 | } else |
b9b946d4 | 2636 | return error(_("%s: bad revision"), name); |
21246dbb MV |
2637 | } |
2638 | ||
043a4492 RR |
2639 | /* |
2640 | * If we were called as "git cherry-pick <commit>", just | |
2641 | * cherry-pick/revert it, set CHERRY_PICK_HEAD / | |
2642 | * REVERT_HEAD, and don't touch the sequencer state. | |
2643 | * This means it is possible to cherry-pick in the middle | |
2644 | * of a cherry-pick sequence. | |
2645 | */ | |
2646 | if (opts->revs->cmdline.nr == 1 && | |
2647 | opts->revs->cmdline.rev->whence == REV_CMD_REV && | |
2648 | opts->revs->no_walk && | |
2649 | !opts->revs->cmdline.rev->flags) { | |
2650 | struct commit *cmit; | |
2651 | if (prepare_revision_walk(opts->revs)) | |
b9b946d4 | 2652 | return error(_("revision walk setup failed")); |
043a4492 RR |
2653 | cmit = get_revision(opts->revs); |
2654 | if (!cmit || get_revision(opts->revs)) | |
b9b946d4 | 2655 | return error("BUG: expected exactly one commit from walk"); |
043a4492 RR |
2656 | return single_pick(cmit, opts); |
2657 | } | |
2658 | ||
2659 | /* | |
2660 | * Start a new cherry-pick/ revert sequence; but | |
2661 | * first, make sure that an existing one isn't in | |
2662 | * progress | |
2663 | */ | |
2664 | ||
34b0528b JS |
2665 | if (walk_revs_populate_todo(&todo_list, opts) || |
2666 | create_seq_dir() < 0) | |
043a4492 | 2667 | return -1; |
1e43ed98 | 2668 | if (get_oid("HEAD", &oid) && (opts->action == REPLAY_REVERT)) |
93b3df6f | 2669 | return error(_("can't revert as initial commit")); |
1e43ed98 | 2670 | if (save_head(oid_to_hex(&oid))) |
311fd397 | 2671 | return -1; |
88d5a271 JS |
2672 | if (save_opts(opts)) |
2673 | return -1; | |
1e41229d | 2674 | update_abort_safety_file(); |
004fefa7 JS |
2675 | res = pick_commits(&todo_list, opts); |
2676 | todo_list_release(&todo_list); | |
2677 | return res; | |
043a4492 | 2678 | } |
5ed75e2a | 2679 | |
bab4d109 | 2680 | void append_signoff(struct strbuf *msgbuf, int ignore_footer, unsigned flag) |
5ed75e2a | 2681 | { |
bab4d109 | 2682 | unsigned no_dup_sob = flag & APPEND_SIGNOFF_DEDUP; |
5ed75e2a | 2683 | struct strbuf sob = STRBUF_INIT; |
bab4d109 | 2684 | int has_footer; |
5ed75e2a MV |
2685 | |
2686 | strbuf_addstr(&sob, sign_off_header); | |
2687 | strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"), | |
2688 | getenv("GIT_COMMITTER_EMAIL"))); | |
2689 | strbuf_addch(&sob, '\n'); | |
bab4d109 | 2690 | |
44dc738a JT |
2691 | if (!ignore_footer) |
2692 | strbuf_complete_line(msgbuf); | |
2693 | ||
bab4d109 BC |
2694 | /* |
2695 | * If the whole message buffer is equal to the sob, pretend that we | |
2696 | * found a conforming footer with a matching sob | |
2697 | */ | |
2698 | if (msgbuf->len - ignore_footer == sob.len && | |
2699 | !strncmp(msgbuf->buf, sob.buf, sob.len)) | |
2700 | has_footer = 3; | |
2701 | else | |
2702 | has_footer = has_conforming_footer(msgbuf, &sob, ignore_footer); | |
2703 | ||
33f2f9ab BC |
2704 | if (!has_footer) { |
2705 | const char *append_newlines = NULL; | |
2706 | size_t len = msgbuf->len - ignore_footer; | |
2707 | ||
8c613fd5 BC |
2708 | if (!len) { |
2709 | /* | |
2710 | * The buffer is completely empty. Leave foom for | |
2711 | * the title and body to be filled in by the user. | |
2712 | */ | |
33f2f9ab | 2713 | append_newlines = "\n\n"; |
8c613fd5 BC |
2714 | } else if (len == 1) { |
2715 | /* | |
2716 | * Buffer contains a single newline. Add another | |
2717 | * so that we leave room for the title and body. | |
2718 | */ | |
2719 | append_newlines = "\n"; | |
2720 | } else if (msgbuf->buf[len - 2] != '\n') { | |
2721 | /* | |
2722 | * Buffer ends with a single newline. Add another | |
2723 | * so that there is an empty line between the message | |
2724 | * body and the sob. | |
2725 | */ | |
33f2f9ab | 2726 | append_newlines = "\n"; |
8c613fd5 | 2727 | } /* else, the buffer already ends with two newlines. */ |
33f2f9ab BC |
2728 | |
2729 | if (append_newlines) | |
2730 | strbuf_splice(msgbuf, msgbuf->len - ignore_footer, 0, | |
2731 | append_newlines, strlen(append_newlines)); | |
5ed75e2a | 2732 | } |
bab4d109 BC |
2733 | |
2734 | if (has_footer != 3 && (!no_dup_sob || has_footer != 2)) | |
2735 | strbuf_splice(msgbuf, msgbuf->len - ignore_footer, 0, | |
2736 | sob.buf, sob.len); | |
2737 | ||
5ed75e2a MV |
2738 | strbuf_release(&sob); |
2739 | } | |
62db5247 JS |
2740 | |
2741 | int sequencer_make_script(int keep_empty, FILE *out, | |
2742 | int argc, const char **argv) | |
2743 | { | |
2744 | char *format = NULL; | |
2745 | struct pretty_print_context pp = {0}; | |
2746 | struct strbuf buf = STRBUF_INIT; | |
2747 | struct rev_info revs; | |
2748 | struct commit *commit; | |
2749 | ||
2750 | init_revisions(&revs, NULL); | |
2751 | revs.verbose_header = 1; | |
2752 | revs.max_parents = 1; | |
2753 | revs.cherry_pick = 1; | |
2754 | revs.limited = 1; | |
2755 | revs.reverse = 1; | |
2756 | revs.right_only = 1; | |
2757 | revs.sort_order = REV_SORT_IN_GRAPH_ORDER; | |
2758 | revs.topo_order = 1; | |
2759 | ||
2760 | revs.pretty_given = 1; | |
2761 | git_config_get_string("rebase.instructionFormat", &format); | |
2762 | if (!format || !*format) { | |
2763 | free(format); | |
2764 | format = xstrdup("%s"); | |
2765 | } | |
2766 | get_commit_format(format, &revs); | |
2767 | free(format); | |
2768 | pp.fmt = revs.commit_format; | |
2769 | pp.output_encoding = get_log_output_encoding(); | |
2770 | ||
2771 | if (setup_revisions(argc, argv, &revs, NULL) > 1) | |
2772 | return error(_("make_script: unhandled options")); | |
2773 | ||
2774 | if (prepare_revision_walk(&revs) < 0) | |
2775 | return error(_("make_script: error preparing revisions")); | |
2776 | ||
2777 | while ((commit = get_revision(&revs))) { | |
2778 | strbuf_reset(&buf); | |
2779 | if (!keep_empty && is_original_commit_empty(commit)) | |
2780 | strbuf_addf(&buf, "%c ", comment_line_char); | |
2781 | strbuf_addf(&buf, "pick %s ", oid_to_hex(&commit->object.oid)); | |
2782 | pretty_print_commit(&pp, commit, &buf); | |
2783 | strbuf_addch(&buf, '\n'); | |
2784 | fputs(buf.buf, out); | |
2785 | } | |
2786 | strbuf_release(&buf); | |
2787 | return 0; | |
2788 | } | |
3546c8d9 JS |
2789 | |
2790 | ||
2791 | int transform_todo_ids(int shorten_ids) | |
2792 | { | |
2793 | const char *todo_file = rebase_path_todo(); | |
2794 | struct todo_list todo_list = TODO_LIST_INIT; | |
2795 | int fd, res, i; | |
2796 | FILE *out; | |
2797 | ||
2798 | strbuf_reset(&todo_list.buf); | |
2799 | fd = open(todo_file, O_RDONLY); | |
2800 | if (fd < 0) | |
2801 | return error_errno(_("could not open '%s'"), todo_file); | |
2802 | if (strbuf_read(&todo_list.buf, fd, 0) < 0) { | |
2803 | close(fd); | |
2804 | return error(_("could not read '%s'."), todo_file); | |
2805 | } | |
2806 | close(fd); | |
2807 | ||
2808 | res = parse_insn_buffer(todo_list.buf.buf, &todo_list); | |
2809 | if (res) { | |
2810 | todo_list_release(&todo_list); | |
2811 | return error(_("unusable todo list: '%s'"), todo_file); | |
2812 | } | |
2813 | ||
2814 | out = fopen(todo_file, "w"); | |
2815 | if (!out) { | |
2816 | todo_list_release(&todo_list); | |
2817 | return error(_("unable to open '%s' for writing"), todo_file); | |
2818 | } | |
2819 | for (i = 0; i < todo_list.nr; i++) { | |
2820 | struct todo_item *item = todo_list.items + i; | |
2821 | int bol = item->offset_in_buf; | |
2822 | const char *p = todo_list.buf.buf + bol; | |
2823 | int eol = i + 1 < todo_list.nr ? | |
2824 | todo_list.items[i + 1].offset_in_buf : | |
2825 | todo_list.buf.len; | |
2826 | ||
2827 | if (item->command >= TODO_EXEC && item->command != TODO_DROP) | |
2828 | fwrite(p, eol - bol, 1, out); | |
2829 | else { | |
2830 | const char *id = shorten_ids ? | |
2831 | short_commit_name(item->commit) : | |
2832 | oid_to_hex(&item->commit->object.oid); | |
2833 | int len; | |
2834 | ||
2835 | p += strspn(p, " \t"); /* left-trim command */ | |
2836 | len = strcspn(p, " \t"); /* length of command */ | |
2837 | ||
2838 | fprintf(out, "%.*s %s %.*s\n", | |
2839 | len, p, id, item->arg_len, item->arg); | |
2840 | } | |
2841 | } | |
2842 | fclose(out); | |
2843 | todo_list_release(&todo_list); | |
2844 | return 0; | |
2845 | } | |
94399949 JS |
2846 | |
2847 | enum check_level { | |
2848 | CHECK_IGNORE = 0, CHECK_WARN, CHECK_ERROR | |
2849 | }; | |
2850 | ||
2851 | static enum check_level get_missing_commit_check_level(void) | |
2852 | { | |
2853 | const char *value; | |
2854 | ||
2855 | if (git_config_get_value("rebase.missingcommitscheck", &value) || | |
2856 | !strcasecmp("ignore", value)) | |
2857 | return CHECK_IGNORE; | |
2858 | if (!strcasecmp("warn", value)) | |
2859 | return CHECK_WARN; | |
2860 | if (!strcasecmp("error", value)) | |
2861 | return CHECK_ERROR; | |
dfab1eac | 2862 | warning(_("unrecognized setting %s for option " |
94399949 JS |
2863 | "rebase.missingCommitsCheck. Ignoring."), value); |
2864 | return CHECK_IGNORE; | |
2865 | } | |
2866 | ||
2867 | /* | |
2868 | * Check if the user dropped some commits by mistake | |
2869 | * Behaviour determined by rebase.missingCommitsCheck. | |
2870 | * Check if there is an unrecognized command or a | |
2871 | * bad SHA-1 in a command. | |
2872 | */ | |
2873 | int check_todo_list(void) | |
2874 | { | |
2875 | enum check_level check_level = get_missing_commit_check_level(); | |
2876 | struct strbuf todo_file = STRBUF_INIT; | |
2877 | struct todo_list todo_list = TODO_LIST_INIT; | |
2878 | struct strbuf missing = STRBUF_INIT; | |
2879 | int advise_to_edit_todo = 0, res = 0, fd, i; | |
2880 | ||
2881 | strbuf_addstr(&todo_file, rebase_path_todo()); | |
2882 | fd = open(todo_file.buf, O_RDONLY); | |
2883 | if (fd < 0) { | |
2884 | res = error_errno(_("could not open '%s'"), todo_file.buf); | |
2885 | goto leave_check; | |
2886 | } | |
2887 | if (strbuf_read(&todo_list.buf, fd, 0) < 0) { | |
2888 | close(fd); | |
2889 | res = error(_("could not read '%s'."), todo_file.buf); | |
2890 | goto leave_check; | |
2891 | } | |
2892 | close(fd); | |
2893 | advise_to_edit_todo = res = | |
2894 | parse_insn_buffer(todo_list.buf.buf, &todo_list); | |
2895 | ||
2896 | if (res || check_level == CHECK_IGNORE) | |
2897 | goto leave_check; | |
2898 | ||
2899 | /* Mark the commits in git-rebase-todo as seen */ | |
2900 | for (i = 0; i < todo_list.nr; i++) { | |
2901 | struct commit *commit = todo_list.items[i].commit; | |
2902 | if (commit) | |
2903 | commit->util = (void *)1; | |
2904 | } | |
2905 | ||
2906 | todo_list_release(&todo_list); | |
2907 | strbuf_addstr(&todo_file, ".backup"); | |
2908 | fd = open(todo_file.buf, O_RDONLY); | |
2909 | if (fd < 0) { | |
2910 | res = error_errno(_("could not open '%s'"), todo_file.buf); | |
2911 | goto leave_check; | |
2912 | } | |
2913 | if (strbuf_read(&todo_list.buf, fd, 0) < 0) { | |
2914 | close(fd); | |
2915 | res = error(_("could not read '%s'."), todo_file.buf); | |
2916 | goto leave_check; | |
2917 | } | |
2918 | close(fd); | |
2919 | strbuf_release(&todo_file); | |
2920 | res = !!parse_insn_buffer(todo_list.buf.buf, &todo_list); | |
2921 | ||
2922 | /* Find commits in git-rebase-todo.backup yet unseen */ | |
2923 | for (i = todo_list.nr - 1; i >= 0; i--) { | |
2924 | struct todo_item *item = todo_list.items + i; | |
2925 | struct commit *commit = item->commit; | |
2926 | if (commit && !commit->util) { | |
2927 | strbuf_addf(&missing, " - %s %.*s\n", | |
2928 | short_commit_name(commit), | |
2929 | item->arg_len, item->arg); | |
2930 | commit->util = (void *)1; | |
2931 | } | |
2932 | } | |
2933 | ||
2934 | /* Warn about missing commits */ | |
2935 | if (!missing.len) | |
2936 | goto leave_check; | |
2937 | ||
2938 | if (check_level == CHECK_ERROR) | |
2939 | advise_to_edit_todo = res = 1; | |
2940 | ||
2941 | fprintf(stderr, | |
2942 | _("Warning: some commits may have been dropped accidentally.\n" | |
2943 | "Dropped commits (newer to older):\n")); | |
2944 | ||
2945 | /* Make the list user-friendly and display */ | |
2946 | fputs(missing.buf, stderr); | |
2947 | strbuf_release(&missing); | |
2948 | ||
2949 | fprintf(stderr, _("To avoid this message, use \"drop\" to " | |
2950 | "explicitly remove a commit.\n\n" | |
2951 | "Use 'git config rebase.missingCommitsCheck' to change " | |
2952 | "the level of warnings.\n" | |
2953 | "The possible behaviours are: ignore, warn, error.\n\n")); | |
2954 | ||
2955 | leave_check: | |
2956 | strbuf_release(&todo_file); | |
2957 | todo_list_release(&todo_list); | |
2958 | ||
2959 | if (advise_to_edit_todo) | |
2960 | fprintf(stderr, | |
2961 | _("You can fix this with 'git rebase --edit-todo' " | |
2962 | "and then run 'git rebase --continue'.\n" | |
2963 | "Or you can abort the rebase with 'git rebase" | |
2964 | " --abort'.\n")); | |
2965 | ||
2966 | return res; | |
2967 | } | |
cdac2b01 JS |
2968 | |
2969 | /* skip picking commits whose parents are unchanged */ | |
2970 | int skip_unnecessary_picks(void) | |
2971 | { | |
2972 | const char *todo_file = rebase_path_todo(); | |
2973 | struct strbuf buf = STRBUF_INIT; | |
2974 | struct todo_list todo_list = TODO_LIST_INIT; | |
2975 | struct object_id onto_oid, *oid = &onto_oid, *parent_oid; | |
2976 | int fd, i; | |
2977 | ||
2978 | if (!read_oneliner(&buf, rebase_path_onto(), 0)) | |
2979 | return error(_("could not read 'onto'")); | |
2980 | if (get_oid(buf.buf, &onto_oid)) { | |
2981 | strbuf_release(&buf); | |
2982 | return error(_("need a HEAD to fixup")); | |
2983 | } | |
2984 | strbuf_release(&buf); | |
2985 | ||
2986 | fd = open(todo_file, O_RDONLY); | |
2987 | if (fd < 0) { | |
2988 | return error_errno(_("could not open '%s'"), todo_file); | |
2989 | } | |
2990 | if (strbuf_read(&todo_list.buf, fd, 0) < 0) { | |
2991 | close(fd); | |
2992 | return error(_("could not read '%s'."), todo_file); | |
2993 | } | |
2994 | close(fd); | |
2995 | if (parse_insn_buffer(todo_list.buf.buf, &todo_list) < 0) { | |
2996 | todo_list_release(&todo_list); | |
2997 | return -1; | |
2998 | } | |
2999 | ||
3000 | for (i = 0; i < todo_list.nr; i++) { | |
3001 | struct todo_item *item = todo_list.items + i; | |
3002 | ||
3003 | if (item->command >= TODO_NOOP) | |
3004 | continue; | |
3005 | if (item->command != TODO_PICK) | |
3006 | break; | |
3007 | if (parse_commit(item->commit)) { | |
3008 | todo_list_release(&todo_list); | |
3009 | return error(_("could not parse commit '%s'"), | |
3010 | oid_to_hex(&item->commit->object.oid)); | |
3011 | } | |
3012 | if (!item->commit->parents) | |
3013 | break; /* root commit */ | |
3014 | if (item->commit->parents->next) | |
3015 | break; /* merge commit */ | |
3016 | parent_oid = &item->commit->parents->item->object.oid; | |
3017 | if (hashcmp(parent_oid->hash, oid->hash)) | |
3018 | break; | |
3019 | oid = &item->commit->object.oid; | |
3020 | } | |
3021 | if (i > 0) { | |
3022 | int offset = i < todo_list.nr ? | |
3023 | todo_list.items[i].offset_in_buf : todo_list.buf.len; | |
3024 | const char *done_path = rebase_path_done(); | |
3025 | ||
3026 | fd = open(done_path, O_CREAT | O_WRONLY | O_APPEND, 0666); | |
3027 | if (fd < 0) { | |
3028 | error_errno(_("could not open '%s' for writing"), | |
3029 | done_path); | |
3030 | todo_list_release(&todo_list); | |
3031 | return -1; | |
3032 | } | |
3033 | if (write_in_full(fd, todo_list.buf.buf, offset) < 0) { | |
3034 | error_errno(_("could not write to '%s'"), done_path); | |
3035 | todo_list_release(&todo_list); | |
3036 | close(fd); | |
3037 | return -1; | |
3038 | } | |
3039 | close(fd); | |
3040 | ||
3041 | fd = open(rebase_path_todo(), O_WRONLY, 0666); | |
3042 | if (fd < 0) { | |
3043 | error_errno(_("could not open '%s' for writing"), | |
3044 | rebase_path_todo()); | |
3045 | todo_list_release(&todo_list); | |
3046 | return -1; | |
3047 | } | |
3048 | if (write_in_full(fd, todo_list.buf.buf + offset, | |
3049 | todo_list.buf.len - offset) < 0) { | |
3050 | error_errno(_("could not write to '%s'"), | |
3051 | rebase_path_todo()); | |
3052 | close(fd); | |
3053 | todo_list_release(&todo_list); | |
3054 | return -1; | |
3055 | } | |
3056 | if (ftruncate(fd, todo_list.buf.len - offset) < 0) { | |
3057 | error_errno(_("could not truncate '%s'"), | |
3058 | rebase_path_todo()); | |
3059 | todo_list_release(&todo_list); | |
3060 | close(fd); | |
3061 | return -1; | |
3062 | } | |
3063 | close(fd); | |
3064 | ||
3065 | todo_list.current = i; | |
3066 | if (is_fixup(peek_command(&todo_list, 0))) | |
3067 | record_in_rewritten(oid, peek_command(&todo_list, 0)); | |
3068 | } | |
3069 | ||
3070 | todo_list_release(&todo_list); | |
3071 | printf("%s\n", oid_to_hex(oid)); | |
3072 | ||
3073 | return 0; | |
3074 | } | |
c44a4c65 JS |
3075 | |
3076 | struct subject2item_entry { | |
3077 | struct hashmap_entry entry; | |
3078 | int i; | |
3079 | char subject[FLEX_ARRAY]; | |
3080 | }; | |
3081 | ||
3082 | static int subject2item_cmp(const void *fndata, | |
3083 | const struct subject2item_entry *a, | |
3084 | const struct subject2item_entry *b, const void *key) | |
3085 | { | |
3086 | return key ? strcmp(a->subject, key) : strcmp(a->subject, b->subject); | |
3087 | } | |
3088 | ||
3089 | /* | |
3090 | * Rearrange the todo list that has both "pick commit-id msg" and "pick | |
3091 | * commit-id fixup!/squash! msg" in it so that the latter is put immediately | |
3092 | * after the former, and change "pick" to "fixup"/"squash". | |
3093 | * | |
3094 | * Note that if the config has specified a custom instruction format, each log | |
3095 | * message will have to be retrieved from the commit (as the oneline in the | |
3096 | * script cannot be trusted) in order to normalize the autosquash arrangement. | |
3097 | */ | |
3098 | int rearrange_squash(void) | |
3099 | { | |
3100 | const char *todo_file = rebase_path_todo(); | |
3101 | struct todo_list todo_list = TODO_LIST_INIT; | |
3102 | struct hashmap subject2item; | |
3103 | int res = 0, rearranged = 0, *next, *tail, fd, i; | |
3104 | char **subjects; | |
3105 | ||
3106 | fd = open(todo_file, O_RDONLY); | |
3107 | if (fd < 0) | |
3108 | return error_errno(_("could not open '%s'"), todo_file); | |
3109 | if (strbuf_read(&todo_list.buf, fd, 0) < 0) { | |
3110 | close(fd); | |
3111 | return error(_("could not read '%s'."), todo_file); | |
3112 | } | |
3113 | close(fd); | |
3114 | if (parse_insn_buffer(todo_list.buf.buf, &todo_list) < 0) { | |
3115 | todo_list_release(&todo_list); | |
3116 | return -1; | |
3117 | } | |
3118 | ||
3119 | /* | |
3120 | * The hashmap maps onelines to the respective todo list index. | |
3121 | * | |
3122 | * If any items need to be rearranged, the next[i] value will indicate | |
3123 | * which item was moved directly after the i'th. | |
3124 | * | |
3125 | * In that case, last[i] will indicate the index of the latest item to | |
3126 | * be moved to appear after the i'th. | |
3127 | */ | |
3128 | hashmap_init(&subject2item, (hashmap_cmp_fn) subject2item_cmp, | |
3129 | NULL, todo_list.nr); | |
3130 | ALLOC_ARRAY(next, todo_list.nr); | |
3131 | ALLOC_ARRAY(tail, todo_list.nr); | |
3132 | ALLOC_ARRAY(subjects, todo_list.nr); | |
3133 | for (i = 0; i < todo_list.nr; i++) { | |
3134 | struct strbuf buf = STRBUF_INIT; | |
3135 | struct todo_item *item = todo_list.items + i; | |
3136 | const char *commit_buffer, *subject, *p; | |
3137 | size_t subject_len; | |
3138 | int i2 = -1; | |
3139 | struct subject2item_entry *entry; | |
3140 | ||
3141 | next[i] = tail[i] = -1; | |
3142 | if (item->command >= TODO_EXEC) { | |
3143 | subjects[i] = NULL; | |
3144 | continue; | |
3145 | } | |
3146 | ||
3147 | if (is_fixup(item->command)) { | |
3148 | todo_list_release(&todo_list); | |
3149 | return error(_("the script was already rearranged.")); | |
3150 | } | |
3151 | ||
3152 | item->commit->util = item; | |
3153 | ||
3154 | parse_commit(item->commit); | |
3155 | commit_buffer = get_commit_buffer(item->commit, NULL); | |
3156 | find_commit_subject(commit_buffer, &subject); | |
3157 | format_subject(&buf, subject, " "); | |
3158 | subject = subjects[i] = strbuf_detach(&buf, &subject_len); | |
3159 | unuse_commit_buffer(item->commit, commit_buffer); | |
3160 | if ((skip_prefix(subject, "fixup! ", &p) || | |
3161 | skip_prefix(subject, "squash! ", &p))) { | |
3162 | struct commit *commit2; | |
3163 | ||
3164 | for (;;) { | |
3165 | while (isspace(*p)) | |
3166 | p++; | |
3167 | if (!skip_prefix(p, "fixup! ", &p) && | |
3168 | !skip_prefix(p, "squash! ", &p)) | |
3169 | break; | |
3170 | } | |
3171 | ||
3172 | if ((entry = hashmap_get_from_hash(&subject2item, | |
3173 | strhash(p), p))) | |
3174 | /* found by title */ | |
3175 | i2 = entry->i; | |
3176 | else if (!strchr(p, ' ') && | |
3177 | (commit2 = | |
3178 | lookup_commit_reference_by_name(p)) && | |
3179 | commit2->util) | |
3180 | /* found by commit name */ | |
3181 | i2 = (struct todo_item *)commit2->util | |
3182 | - todo_list.items; | |
3183 | else { | |
3184 | /* copy can be a prefix of the commit subject */ | |
3185 | for (i2 = 0; i2 < i; i2++) | |
3186 | if (subjects[i2] && | |
3187 | starts_with(subjects[i2], p)) | |
3188 | break; | |
3189 | if (i2 == i) | |
3190 | i2 = -1; | |
3191 | } | |
3192 | } | |
3193 | if (i2 >= 0) { | |
3194 | rearranged = 1; | |
3195 | todo_list.items[i].command = | |
3196 | starts_with(subject, "fixup!") ? | |
3197 | TODO_FIXUP : TODO_SQUASH; | |
3198 | if (next[i2] < 0) | |
3199 | next[i2] = i; | |
3200 | else | |
3201 | next[tail[i2]] = i; | |
3202 | tail[i2] = i; | |
3203 | } else if (!hashmap_get_from_hash(&subject2item, | |
3204 | strhash(subject), subject)) { | |
3205 | FLEX_ALLOC_MEM(entry, subject, subject, subject_len); | |
3206 | entry->i = i; | |
3207 | hashmap_entry_init(entry, strhash(entry->subject)); | |
3208 | hashmap_put(&subject2item, entry); | |
3209 | } | |
3210 | } | |
3211 | ||
3212 | if (rearranged) { | |
3213 | struct strbuf buf = STRBUF_INIT; | |
3214 | ||
3215 | for (i = 0; i < todo_list.nr; i++) { | |
3216 | enum todo_command command = todo_list.items[i].command; | |
3217 | int cur = i; | |
3218 | ||
3219 | /* | |
3220 | * Initially, all commands are 'pick's. If it is a | |
3221 | * fixup or a squash now, we have rearranged it. | |
3222 | */ | |
3223 | if (is_fixup(command)) | |
3224 | continue; | |
3225 | ||
3226 | while (cur >= 0) { | |
3227 | int offset = todo_list.items[cur].offset_in_buf; | |
3228 | int end_offset = cur + 1 < todo_list.nr ? | |
3229 | todo_list.items[cur + 1].offset_in_buf : | |
3230 | todo_list.buf.len; | |
3231 | char *bol = todo_list.buf.buf + offset; | |
3232 | char *eol = todo_list.buf.buf + end_offset; | |
3233 | ||
3234 | /* replace 'pick', by 'fixup' or 'squash' */ | |
3235 | command = todo_list.items[cur].command; | |
3236 | if (is_fixup(command)) { | |
3237 | strbuf_addstr(&buf, | |
3238 | todo_command_info[command].str); | |
3239 | bol += strcspn(bol, " \t"); | |
3240 | } | |
3241 | ||
3242 | strbuf_add(&buf, bol, eol - bol); | |
3243 | ||
3244 | cur = next[cur]; | |
3245 | } | |
3246 | } | |
3247 | ||
3248 | fd = open(todo_file, O_WRONLY); | |
3249 | if (fd < 0) | |
3250 | res = error_errno(_("could not open '%s'"), todo_file); | |
3251 | else if (write(fd, buf.buf, buf.len) < 0) | |
27f90c25 | 3252 | res = error_errno(_("could not write to '%s'"), todo_file); |
c44a4c65 | 3253 | else if (ftruncate(fd, buf.len) < 0) |
3247edbb | 3254 | res = error_errno(_("could not truncate '%s'"), |
c44a4c65 JS |
3255 | todo_file); |
3256 | close(fd); | |
3257 | strbuf_release(&buf); | |
3258 | } | |
3259 | ||
3260 | free(next); | |
3261 | free(tail); | |
3262 | for (i = 0; i < todo_list.nr; i++) | |
3263 | free(subjects[i]); | |
3264 | free(subjects); | |
3265 | hashmap_free(&subject2item, 1); | |
3266 | todo_list_release(&todo_list); | |
3267 | ||
3268 | return res; | |
3269 | } |