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Commit | Line | Data |
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5f1c3f07 JH |
1 | #include "cache.h" |
2 | #include "diff.h" | |
3 | #include "commit.h" | |
7fefda5c | 4 | #include "graph.h" |
5f1c3f07 | 5 | #include "log-tree.h" |
8860fd42 | 6 | #include "reflog-walk.h" |
5f1c3f07 | 7 | |
ca135e7a LT |
8 | struct decoration name_decoration = { "object names" }; |
9 | ||
c8c893c6 LT |
10 | static void show_parents(struct commit *commit, int abbrev) |
11 | { | |
12 | struct commit_list *p; | |
13 | for (p = commit->parents; p ; p = p->next) { | |
14 | struct commit *parent = p->item; | |
15 | printf(" %s", diff_unique_abbrev(parent->object.sha1, abbrev)); | |
16 | } | |
17 | } | |
18 | ||
50e62a8e | 19 | void show_decorations(struct commit *commit) |
ca135e7a LT |
20 | { |
21 | const char *prefix; | |
22 | struct name_decoration *decoration; | |
23 | ||
24 | decoration = lookup_decoration(&name_decoration, &commit->object); | |
25 | if (!decoration) | |
26 | return; | |
27 | prefix = " ("; | |
28 | while (decoration) { | |
29 | printf("%s%s", prefix, decoration->name); | |
30 | prefix = ", "; | |
31 | decoration = decoration->next; | |
32 | } | |
33 | putchar(')'); | |
34 | } | |
35 | ||
fc1c75ec FBH |
36 | /* |
37 | * Search for "^[-A-Za-z]+: [^@]+@" pattern. It usually matches | |
38 | * Signed-off-by: and Acked-by: lines. | |
39 | */ | |
40 | static int detect_any_signoff(char *letter, int size) | |
41 | { | |
42 | char ch, *cp; | |
43 | int seen_colon = 0; | |
44 | int seen_at = 0; | |
45 | int seen_name = 0; | |
46 | int seen_head = 0; | |
47 | ||
48 | cp = letter + size; | |
49 | while (letter <= --cp && (ch = *cp) == '\n') | |
50 | continue; | |
51 | ||
52 | while (letter <= cp) { | |
53 | ch = *cp--; | |
54 | if (ch == '\n') | |
55 | break; | |
56 | ||
57 | if (!seen_at) { | |
58 | if (ch == '@') | |
59 | seen_at = 1; | |
60 | continue; | |
61 | } | |
62 | if (!seen_colon) { | |
63 | if (ch == '@') | |
64 | return 0; | |
65 | else if (ch == ':') | |
66 | seen_colon = 1; | |
67 | else | |
68 | seen_name = 1; | |
69 | continue; | |
70 | } | |
71 | if (('A' <= ch && ch <= 'Z') || | |
72 | ('a' <= ch && ch <= 'z') || | |
73 | ch == '-') { | |
74 | seen_head = 1; | |
75 | continue; | |
76 | } | |
77 | /* no empty last line doesn't match */ | |
78 | return 0; | |
79 | } | |
80 | return seen_head && seen_name; | |
81 | } | |
82 | ||
674d1727 | 83 | static void append_signoff(struct strbuf *sb, const char *signoff) |
cf2251b6 | 84 | { |
cf2251b6 | 85 | static const char signed_off_by[] = "Signed-off-by: "; |
80583c0e | 86 | size_t signoff_len = strlen(signoff); |
fc1c75ec | 87 | int has_signoff = 0; |
80583c0e | 88 | char *cp; |
cf2251b6 | 89 | |
674d1727 | 90 | cp = sb->buf; |
cf2251b6 JH |
91 | |
92 | /* First see if we already have the sign-off by the signer */ | |
fc1c75ec FBH |
93 | while ((cp = strstr(cp, signed_off_by))) { |
94 | ||
95 | has_signoff = 1; | |
96 | ||
cf2251b6 | 97 | cp += strlen(signed_off_by); |
674d1727 | 98 | if (cp + signoff_len >= sb->buf + sb->len) |
fc1c75ec FBH |
99 | break; |
100 | if (strncmp(cp, signoff, signoff_len)) | |
101 | continue; | |
102 | if (!isspace(cp[signoff_len])) | |
103 | continue; | |
104 | /* we already have him */ | |
674d1727 | 105 | return; |
cf2251b6 JH |
106 | } |
107 | ||
fc1c75ec | 108 | if (!has_signoff) |
674d1727 | 109 | has_signoff = detect_any_signoff(sb->buf, sb->len); |
fc1c75ec FBH |
110 | |
111 | if (!has_signoff) | |
674d1727 | 112 | strbuf_addch(sb, '\n'); |
c35f4c37 | 113 | |
674d1727 PH |
114 | strbuf_addstr(sb, signed_off_by); |
115 | strbuf_add(sb, signoff, signoff_len); | |
116 | strbuf_addch(sb, '\n'); | |
cf2251b6 JH |
117 | } |
118 | ||
e00de24b JS |
119 | static unsigned int digits_in_number(unsigned int number) |
120 | { | |
121 | unsigned int i = 10, result = 1; | |
122 | while (i <= number) { | |
123 | i *= 10; | |
124 | result++; | |
125 | } | |
126 | return result; | |
127 | } | |
128 | ||
4593fb84 JH |
129 | static int has_non_ascii(const char *s) |
130 | { | |
131 | int ch; | |
132 | if (!s) | |
133 | return 0; | |
134 | while ((ch = *s++) != '\0') { | |
135 | if (non_ascii(ch)) | |
136 | return 1; | |
137 | } | |
138 | return 0; | |
139 | } | |
140 | ||
b02bd65f | 141 | void log_write_email_headers(struct rev_info *opt, const char *name, |
267123b4 JH |
142 | const char **subject_p, |
143 | const char **extra_headers_p, | |
144 | int *need_8bit_cte_p) | |
b02bd65f DB |
145 | { |
146 | const char *subject = NULL; | |
147 | const char *extra_headers = opt->extra_headers; | |
267123b4 JH |
148 | |
149 | *need_8bit_cte_p = 0; /* unknown */ | |
b02bd65f DB |
150 | if (opt->total > 0) { |
151 | static char buffer[64]; | |
152 | snprintf(buffer, sizeof(buffer), | |
153 | "Subject: [%s %0*d/%d] ", | |
154 | opt->subject_prefix, | |
155 | digits_in_number(opt->total), | |
156 | opt->nr, opt->total); | |
157 | subject = buffer; | |
158 | } else if (opt->total == 0 && opt->subject_prefix && *opt->subject_prefix) { | |
159 | static char buffer[256]; | |
160 | snprintf(buffer, sizeof(buffer), | |
161 | "Subject: [%s] ", | |
162 | opt->subject_prefix); | |
163 | subject = buffer; | |
164 | } else { | |
165 | subject = "Subject: "; | |
166 | } | |
167 | ||
168 | printf("From %s Mon Sep 17 00:00:00 2001\n", name); | |
7fefda5c AS |
169 | graph_show_oneline(opt->graph); |
170 | if (opt->message_id) { | |
b02bd65f | 171 | printf("Message-Id: <%s>\n", opt->message_id); |
7fefda5c AS |
172 | graph_show_oneline(opt->graph); |
173 | } | |
174 | if (opt->ref_message_id) { | |
b02bd65f DB |
175 | printf("In-Reply-To: <%s>\nReferences: <%s>\n", |
176 | opt->ref_message_id, opt->ref_message_id); | |
7fefda5c AS |
177 | graph_show_oneline(opt->graph); |
178 | } | |
b02bd65f DB |
179 | if (opt->mime_boundary) { |
180 | static char subject_buffer[1024]; | |
181 | static char buffer[1024]; | |
267123b4 | 182 | *need_8bit_cte_p = -1; /* NEVER */ |
b02bd65f DB |
183 | snprintf(subject_buffer, sizeof(subject_buffer) - 1, |
184 | "%s" | |
185 | "MIME-Version: 1.0\n" | |
186 | "Content-Type: multipart/mixed;" | |
187 | " boundary=\"%s%s\"\n" | |
188 | "\n" | |
189 | "This is a multi-part message in MIME " | |
190 | "format.\n" | |
191 | "--%s%s\n" | |
192 | "Content-Type: text/plain; " | |
193 | "charset=UTF-8; format=fixed\n" | |
194 | "Content-Transfer-Encoding: 8bit\n\n", | |
195 | extra_headers ? extra_headers : "", | |
196 | mime_boundary_leader, opt->mime_boundary, | |
197 | mime_boundary_leader, opt->mime_boundary); | |
198 | extra_headers = subject_buffer; | |
199 | ||
200 | snprintf(buffer, sizeof(buffer) - 1, | |
201 | "--%s%s\n" | |
202 | "Content-Type: text/x-patch;" | |
203 | " name=\"%s.diff\"\n" | |
204 | "Content-Transfer-Encoding: 8bit\n" | |
205 | "Content-Disposition: %s;" | |
206 | " filename=\"%s.diff\"\n\n", | |
207 | mime_boundary_leader, opt->mime_boundary, | |
208 | name, | |
209 | opt->no_inline ? "attachment" : "inline", | |
210 | name); | |
211 | opt->diffopt.stat_sep = buffer; | |
212 | } | |
213 | *subject_p = subject; | |
214 | *extra_headers_p = extra_headers; | |
215 | } | |
216 | ||
02865655 | 217 | void show_log(struct rev_info *opt) |
91539833 | 218 | { |
674d1727 | 219 | struct strbuf msgbuf; |
39bc9a6c | 220 | struct log_info *log = opt->loginfo; |
91539833 LT |
221 | struct commit *commit = log->commit, *parent = log->parent; |
222 | int abbrev = opt->diffopt.abbrev; | |
223 | int abbrev_commit = opt->abbrev_commit ? opt->abbrev : 40; | |
20ff0680 | 224 | const char *subject = NULL, *extra_headers = opt->extra_headers; |
6bf4f1b4 | 225 | int need_8bit_cte = 0; |
91539833 LT |
226 | |
227 | opt->loginfo = NULL; | |
228 | if (!opt->verbose_header) { | |
7fefda5c AS |
229 | graph_show_commit(opt->graph); |
230 | ||
3131b713 LT |
231 | if (commit->object.flags & BOUNDARY) |
232 | putchar('-'); | |
233 | else if (commit->object.flags & UNINTERESTING) | |
234 | putchar('^'); | |
235 | else if (opt->left_right) { | |
236 | if (commit->object.flags & SYMMETRIC_LEFT) | |
74bd9029 JH |
237 | putchar('<'); |
238 | else | |
239 | putchar('>'); | |
240 | } | |
c8c893c6 | 241 | fputs(diff_unique_abbrev(commit->object.sha1, abbrev_commit), stdout); |
885cf808 | 242 | if (opt->print_parents) |
c8c893c6 | 243 | show_parents(commit, abbrev_commit); |
ca135e7a | 244 | show_decorations(commit); |
7fefda5c AS |
245 | if (opt->graph && !graph_is_commit_finished(opt->graph)) { |
246 | putchar('\n'); | |
247 | graph_show_remainder(opt->graph); | |
248 | } | |
1dcb6922 | 249 | putchar(opt->diffopt.line_termination); |
91539833 LT |
250 | return; |
251 | } | |
252 | ||
253 | /* | |
02865655 AS |
254 | * If use_terminator is set, add a newline at the end of the entry. |
255 | * Otherwise, add a diffopt.line_termination character before all | |
256 | * entries but the first. (IOW, as a separator between entries) | |
91539833 | 257 | */ |
7fefda5c AS |
258 | if (opt->shown_one && !opt->use_terminator) { |
259 | /* | |
260 | * If entries are separated by a newline, the output | |
261 | * should look human-readable. If the last entry ended | |
262 | * with a newline, print the graph output before this | |
263 | * newline. Otherwise it will end up as a completely blank | |
264 | * line and will look like a gap in the graph. | |
265 | * | |
266 | * If the entry separator is not a newline, the output is | |
267 | * primarily intended for programmatic consumption, and we | |
268 | * never want the extra graph output before the entry | |
269 | * separator. | |
270 | */ | |
271 | if (opt->diffopt.line_termination == '\n' && | |
272 | !opt->missing_newline) | |
273 | graph_show_padding(opt->graph); | |
abd4e222 | 274 | putchar(opt->diffopt.line_termination); |
7fefda5c | 275 | } |
91539833 LT |
276 | opt->shown_one = 1; |
277 | ||
7fefda5c AS |
278 | /* |
279 | * If the history graph was requested, | |
280 | * print the graph, up to this commit's line | |
281 | */ | |
282 | graph_show_commit(opt->graph); | |
283 | ||
91539833 LT |
284 | /* |
285 | * Print header line of header.. | |
286 | */ | |
3eefc189 | 287 | |
596524b3 | 288 | if (opt->commit_format == CMIT_FMT_EMAIL) { |
b02bd65f | 289 | log_write_email_headers(opt, sha1_to_hex(commit->object.sha1), |
267123b4 JH |
290 | &subject, &extra_headers, |
291 | &need_8bit_cte); | |
e52a5de4 | 292 | } else if (opt->commit_format != CMIT_FMT_USERFORMAT) { |
8f67f8ae | 293 | fputs(diff_get_color_opt(&opt->diffopt, DIFF_COMMIT), stdout); |
74bd9029 JH |
294 | if (opt->commit_format != CMIT_FMT_ONELINE) |
295 | fputs("commit ", stdout); | |
e330a406 LT |
296 | if (commit->object.flags & BOUNDARY) |
297 | putchar('-'); | |
3131b713 LT |
298 | else if (commit->object.flags & UNINTERESTING) |
299 | putchar('^'); | |
e330a406 LT |
300 | else if (opt->left_right) { |
301 | if (commit->object.flags & SYMMETRIC_LEFT) | |
74bd9029 JH |
302 | putchar('<'); |
303 | else | |
304 | putchar('>'); | |
305 | } | |
306 | fputs(diff_unique_abbrev(commit->object.sha1, abbrev_commit), | |
307 | stdout); | |
885cf808 | 308 | if (opt->print_parents) |
c66b6c06 | 309 | show_parents(commit, abbrev_commit); |
73f0a157 | 310 | if (parent) |
3eefc189 JH |
311 | printf(" (from %s)", |
312 | diff_unique_abbrev(parent->object.sha1, | |
313 | abbrev_commit)); | |
ca135e7a | 314 | show_decorations(commit); |
8f67f8ae | 315 | printf("%s", diff_get_color_opt(&opt->diffopt, DIFF_RESET)); |
7fefda5c AS |
316 | if (opt->commit_format == CMIT_FMT_ONELINE) { |
317 | putchar(' '); | |
318 | } else { | |
319 | putchar('\n'); | |
320 | graph_show_oneline(opt->graph); | |
321 | } | |
903b45fe | 322 | if (opt->reflog_info) { |
7fefda5c AS |
323 | /* |
324 | * setup_revisions() ensures that opt->reflog_info | |
325 | * and opt->graph cannot both be set, | |
326 | * so we don't need to worry about printing the | |
327 | * graph info here. | |
328 | */ | |
4d12a471 | 329 | show_reflog_message(opt->reflog_info, |
4e244cbc | 330 | opt->commit_format == CMIT_FMT_ONELINE, |
a7b02ccf | 331 | opt->date_mode); |
02865655 | 332 | if (opt->commit_format == CMIT_FMT_ONELINE) |
903b45fe | 333 | return; |
903b45fe | 334 | } |
3eefc189 | 335 | } |
91539833 | 336 | |
3131b713 LT |
337 | if (!commit->buffer) |
338 | return; | |
339 | ||
91539833 LT |
340 | /* |
341 | * And then the pretty-printed message itself | |
342 | */ | |
674d1727 | 343 | strbuf_init(&msgbuf, 0); |
6bf4f1b4 JH |
344 | if (need_8bit_cte >= 0) |
345 | need_8bit_cte = has_non_ascii(opt->add_signoff); | |
674d1727 | 346 | pretty_print_commit(opt->commit_format, commit, &msgbuf, |
4593fb84 | 347 | abbrev, subject, extra_headers, opt->date_mode, |
6bf4f1b4 | 348 | need_8bit_cte); |
cf2251b6 JH |
349 | |
350 | if (opt->add_signoff) | |
674d1727 | 351 | append_signoff(&msgbuf, opt->add_signoff); |
7fefda5c | 352 | if (opt->show_log_size) { |
674d1727 | 353 | printf("log size %i\n", (int)msgbuf.len); |
7fefda5c AS |
354 | graph_show_oneline(opt->graph); |
355 | } | |
9fa3465d | 356 | |
7fefda5c AS |
357 | /* |
358 | * Set opt->missing_newline if msgbuf doesn't | |
359 | * end in a newline (including if it is empty) | |
360 | */ | |
361 | if (!msgbuf.len || msgbuf.buf[msgbuf.len - 1] != '\n') | |
362 | opt->missing_newline = 1; | |
363 | else | |
364 | opt->missing_newline = 0; | |
365 | ||
366 | if (opt->graph) | |
367 | graph_show_commit_msg(opt->graph, &msgbuf); | |
368 | else | |
42c8c74c | 369 | fwrite(msgbuf.buf, sizeof(char), msgbuf.len, stdout); |
7fefda5c AS |
370 | if (opt->use_terminator) { |
371 | if (!opt->missing_newline) | |
372 | graph_show_padding(opt->graph); | |
9b58bfe8 | 373 | putchar('\n'); |
7fefda5c AS |
374 | } |
375 | ||
674d1727 | 376 | strbuf_release(&msgbuf); |
91539833 LT |
377 | } |
378 | ||
cd2bdc53 | 379 | int log_tree_diff_flush(struct rev_info *opt) |
5f1c3f07 JH |
380 | { |
381 | diffcore_std(&opt->diffopt); | |
91539833 | 382 | |
5f1c3f07 JH |
383 | if (diff_queue_is_empty()) { |
384 | int saved_fmt = opt->diffopt.output_format; | |
385 | opt->diffopt.output_format = DIFF_FORMAT_NO_OUTPUT; | |
386 | diff_flush(&opt->diffopt); | |
387 | opt->diffopt.output_format = saved_fmt; | |
388 | return 0; | |
389 | } | |
91539833 | 390 | |
3969cf7d JH |
391 | if (opt->loginfo && !opt->no_commit_id) { |
392 | /* When showing a verbose header (i.e. log message), | |
393 | * and not in --pretty=oneline format, we would want | |
394 | * an extra newline between the end of log and the | |
395 | * output for readability. | |
396 | */ | |
02865655 | 397 | show_log(opt); |
304b5af6 LT |
398 | if ((opt->diffopt.output_format & ~DIFF_FORMAT_NO_OUTPUT) && |
399 | opt->verbose_header && | |
3969cf7d JH |
400 | opt->commit_format != CMIT_FMT_ONELINE) { |
401 | int pch = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_PATCH; | |
402 | if ((pch & opt->diffopt.output_format) == pch) | |
abd4e222 LT |
403 | printf("---"); |
404 | putchar('\n'); | |
3969cf7d JH |
405 | } |
406 | } | |
5f1c3f07 JH |
407 | diff_flush(&opt->diffopt); |
408 | return 1; | |
409 | } | |
410 | ||
cd2bdc53 | 411 | static int do_diff_combined(struct rev_info *opt, struct commit *commit) |
5f1c3f07 JH |
412 | { |
413 | unsigned const char *sha1 = commit->object.sha1; | |
414 | ||
91539833 LT |
415 | diff_tree_combined_merge(sha1, opt->dense_combined_merges, opt); |
416 | return !opt->loginfo; | |
5f1c3f07 JH |
417 | } |
418 | ||
91539833 LT |
419 | /* |
420 | * Show the diff of a commit. | |
421 | * | |
422 | * Return true if we printed any log info messages | |
423 | */ | |
424 | static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log_info *log) | |
5f1c3f07 | 425 | { |
91539833 | 426 | int showed_log; |
5f1c3f07 JH |
427 | struct commit_list *parents; |
428 | unsigned const char *sha1 = commit->object.sha1; | |
429 | ||
91539833 LT |
430 | if (!opt->diff) |
431 | return 0; | |
432 | ||
5f1c3f07 | 433 | /* Root commit? */ |
91539833 LT |
434 | parents = commit->parents; |
435 | if (!parents) { | |
2b60356d RS |
436 | if (opt->show_root_diff) { |
437 | diff_root_tree_sha1(sha1, "", &opt->diffopt); | |
438 | log_tree_diff_flush(opt); | |
439 | } | |
91539833 | 440 | return !opt->loginfo; |
5f1c3f07 JH |
441 | } |
442 | ||
443 | /* More than one parent? */ | |
91539833 | 444 | if (parents && parents->next) { |
5f1c3f07 JH |
445 | if (opt->ignore_merges) |
446 | return 0; | |
447 | else if (opt->combine_merges) | |
448 | return do_diff_combined(opt, commit); | |
91539833 LT |
449 | |
450 | /* If we show individual diffs, show the parent info */ | |
451 | log->parent = parents->item; | |
5f1c3f07 JH |
452 | } |
453 | ||
91539833 LT |
454 | showed_log = 0; |
455 | for (;;) { | |
5f1c3f07 | 456 | struct commit *parent = parents->item; |
5f1c3f07 | 457 | |
91539833 LT |
458 | diff_tree_sha1(parent->object.sha1, sha1, "", &opt->diffopt); |
459 | log_tree_diff_flush(opt); | |
460 | ||
461 | showed_log |= !opt->loginfo; | |
462 | ||
463 | /* Set up the log info for the next parent, if any.. */ | |
464 | parents = parents->next; | |
465 | if (!parents) | |
466 | break; | |
467 | log->parent = parents->item; | |
468 | opt->loginfo = log; | |
469 | } | |
470 | return showed_log; | |
471 | } | |
472 | ||
473 | int log_tree_commit(struct rev_info *opt, struct commit *commit) | |
474 | { | |
475 | struct log_info log; | |
3eefc189 | 476 | int shown; |
91539833 LT |
477 | |
478 | log.commit = commit; | |
479 | log.parent = NULL; | |
480 | opt->loginfo = &log; | |
481 | ||
3eefc189 JH |
482 | shown = log_tree_diff(opt, commit, &log); |
483 | if (!shown && opt->loginfo && opt->always_show_header) { | |
91539833 | 484 | log.parent = NULL; |
02865655 | 485 | show_log(opt); |
3eefc189 | 486 | shown = 1; |
5f1c3f07 | 487 | } |
91539833 | 488 | opt->loginfo = NULL; |
06f59e9f | 489 | maybe_flush_or_die(stdout, "stdout"); |
3eefc189 | 490 | return shown; |
5f1c3f07 | 491 | } |