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1 | #include "cache.h" | |
2 | #include "diff.h" | |
3 | #include "commit.h" | |
4 | #include "tag.h" | |
5 | #include "graph.h" | |
6 | #include "log-tree.h" | |
7 | #include "reflog-walk.h" | |
8 | #include "refs.h" | |
9 | #include "string-list.h" | |
10 | #include "color.h" | |
11 | #include "gpg-interface.h" | |
12 | #include "sequencer.h" | |
13 | #include "line-log.h" | |
14 | ||
15 | static struct decoration name_decoration = { "object names" }; | |
16 | static int decoration_loaded; | |
17 | static int decoration_flags; | |
18 | ||
19 | static char decoration_colors[][COLOR_MAXLEN] = { | |
20 | GIT_COLOR_RESET, | |
21 | GIT_COLOR_BOLD_GREEN, /* REF_LOCAL */ | |
22 | GIT_COLOR_BOLD_RED, /* REF_REMOTE */ | |
23 | GIT_COLOR_BOLD_YELLOW, /* REF_TAG */ | |
24 | GIT_COLOR_BOLD_MAGENTA, /* REF_STASH */ | |
25 | GIT_COLOR_BOLD_CYAN, /* REF_HEAD */ | |
26 | GIT_COLOR_BOLD_BLUE, /* GRAFTED */ | |
27 | }; | |
28 | ||
29 | static const char *decorate_get_color(int decorate_use_color, enum decoration_type ix) | |
30 | { | |
31 | if (want_color(decorate_use_color)) | |
32 | return decoration_colors[ix]; | |
33 | return ""; | |
34 | } | |
35 | ||
36 | static int parse_decorate_color_slot(const char *slot) | |
37 | { | |
38 | /* | |
39 | * We're comparing with 'ignore-case' on | |
40 | * (because config.c sets them all tolower), | |
41 | * but let's match the letters in the literal | |
42 | * string values here with how they are | |
43 | * documented in Documentation/config.txt, for | |
44 | * consistency. | |
45 | * | |
46 | * We love being consistent, don't we? | |
47 | */ | |
48 | if (!strcasecmp(slot, "branch")) | |
49 | return DECORATION_REF_LOCAL; | |
50 | if (!strcasecmp(slot, "remoteBranch")) | |
51 | return DECORATION_REF_REMOTE; | |
52 | if (!strcasecmp(slot, "tag")) | |
53 | return DECORATION_REF_TAG; | |
54 | if (!strcasecmp(slot, "stash")) | |
55 | return DECORATION_REF_STASH; | |
56 | if (!strcasecmp(slot, "HEAD")) | |
57 | return DECORATION_REF_HEAD; | |
58 | return -1; | |
59 | } | |
60 | ||
61 | int parse_decorate_color_config(const char *var, const char *slot_name, const char *value) | |
62 | { | |
63 | int slot = parse_decorate_color_slot(slot_name); | |
64 | if (slot < 0) | |
65 | return 0; | |
66 | if (!value) | |
67 | return config_error_nonbool(var); | |
68 | return color_parse(value, decoration_colors[slot]); | |
69 | } | |
70 | ||
71 | /* | |
72 | * log-tree.c uses DIFF_OPT_TST for determining whether to use color | |
73 | * for showing the commit sha1, use the same check for --decorate | |
74 | */ | |
75 | #define decorate_get_color_opt(o, ix) \ | |
76 | decorate_get_color((o)->use_color, ix) | |
77 | ||
78 | void add_name_decoration(enum decoration_type type, const char *name, struct object *obj) | |
79 | { | |
80 | int nlen = strlen(name); | |
81 | struct name_decoration *res = xmalloc(sizeof(*res) + nlen + 1); | |
82 | memcpy(res->name, name, nlen + 1); | |
83 | res->type = type; | |
84 | res->next = add_decoration(&name_decoration, obj, res); | |
85 | } | |
86 | ||
87 | const struct name_decoration *get_name_decoration(const struct object *obj) | |
88 | { | |
89 | return lookup_decoration(&name_decoration, obj); | |
90 | } | |
91 | ||
92 | static int add_ref_decoration(const char *refname, const struct object_id *oid, | |
93 | int flags, void *cb_data) | |
94 | { | |
95 | struct object *obj; | |
96 | enum decoration_type type = DECORATION_NONE; | |
97 | ||
98 | assert(cb_data == NULL); | |
99 | ||
100 | if (starts_with(refname, "refs/replace/")) { | |
101 | struct object_id original_oid; | |
102 | if (!check_replace_refs) | |
103 | return 0; | |
104 | if (get_oid_hex(refname + 13, &original_oid)) { | |
105 | warning("invalid replace ref %s", refname); | |
106 | return 0; | |
107 | } | |
108 | obj = parse_object(original_oid.hash); | |
109 | if (obj) | |
110 | add_name_decoration(DECORATION_GRAFTED, "replaced", obj); | |
111 | return 0; | |
112 | } | |
113 | ||
114 | obj = parse_object(oid->hash); | |
115 | if (!obj) | |
116 | return 0; | |
117 | ||
118 | if (starts_with(refname, "refs/heads/")) | |
119 | type = DECORATION_REF_LOCAL; | |
120 | else if (starts_with(refname, "refs/remotes/")) | |
121 | type = DECORATION_REF_REMOTE; | |
122 | else if (starts_with(refname, "refs/tags/")) | |
123 | type = DECORATION_REF_TAG; | |
124 | else if (!strcmp(refname, "refs/stash")) | |
125 | type = DECORATION_REF_STASH; | |
126 | else if (!strcmp(refname, "HEAD")) | |
127 | type = DECORATION_REF_HEAD; | |
128 | ||
129 | add_name_decoration(type, refname, obj); | |
130 | while (obj->type == OBJ_TAG) { | |
131 | obj = ((struct tag *)obj)->tagged; | |
132 | if (!obj) | |
133 | break; | |
134 | if (!obj->parsed) | |
135 | parse_object(obj->sha1); | |
136 | add_name_decoration(DECORATION_REF_TAG, refname, obj); | |
137 | } | |
138 | return 0; | |
139 | } | |
140 | ||
141 | static int add_graft_decoration(const struct commit_graft *graft, void *cb_data) | |
142 | { | |
143 | struct commit *commit = lookup_commit(graft->oid.hash); | |
144 | if (!commit) | |
145 | return 0; | |
146 | add_name_decoration(DECORATION_GRAFTED, "grafted", &commit->object); | |
147 | return 0; | |
148 | } | |
149 | ||
150 | void load_ref_decorations(int flags) | |
151 | { | |
152 | if (!decoration_loaded) { | |
153 | ||
154 | decoration_loaded = 1; | |
155 | decoration_flags = flags; | |
156 | for_each_ref(add_ref_decoration, NULL); | |
157 | head_ref(add_ref_decoration, NULL); | |
158 | for_each_commit_graft(add_graft_decoration, NULL); | |
159 | } | |
160 | } | |
161 | ||
162 | static void show_parents(struct commit *commit, int abbrev) | |
163 | { | |
164 | struct commit_list *p; | |
165 | for (p = commit->parents; p ; p = p->next) { | |
166 | struct commit *parent = p->item; | |
167 | printf(" %s", find_unique_abbrev(parent->object.sha1, abbrev)); | |
168 | } | |
169 | } | |
170 | ||
171 | static void show_children(struct rev_info *opt, struct commit *commit, int abbrev) | |
172 | { | |
173 | struct commit_list *p = lookup_decoration(&opt->children, &commit->object); | |
174 | for ( ; p; p = p->next) { | |
175 | printf(" %s", find_unique_abbrev(p->item->object.sha1, abbrev)); | |
176 | } | |
177 | } | |
178 | ||
179 | /* | |
180 | * Do we have HEAD in the output, and also the branch it points at? | |
181 | * If so, find that decoration entry for that current branch. | |
182 | */ | |
183 | static const struct name_decoration *current_pointed_by_HEAD(const struct name_decoration *decoration) | |
184 | { | |
185 | const struct name_decoration *list, *head = NULL; | |
186 | const char *branch_name = NULL; | |
187 | unsigned char unused[20]; | |
188 | int rru_flags; | |
189 | ||
190 | /* First find HEAD */ | |
191 | for (list = decoration; list; list = list->next) | |
192 | if (list->type == DECORATION_REF_HEAD) { | |
193 | head = list; | |
194 | break; | |
195 | } | |
196 | if (!head) | |
197 | return NULL; | |
198 | ||
199 | /* Now resolve and find the matching current branch */ | |
200 | branch_name = resolve_ref_unsafe("HEAD", 0, unused, &rru_flags); | |
201 | if (!(rru_flags & REF_ISSYMREF)) | |
202 | return NULL; | |
203 | ||
204 | if (!starts_with(branch_name, "refs/")) | |
205 | return NULL; | |
206 | ||
207 | /* OK, do we have that ref in the list? */ | |
208 | for (list = decoration; list; list = list->next) | |
209 | if ((list->type == DECORATION_REF_LOCAL) && | |
210 | !strcmp(branch_name, list->name)) { | |
211 | return list; | |
212 | } | |
213 | ||
214 | return NULL; | |
215 | } | |
216 | ||
217 | static void show_name(struct strbuf *sb, const struct name_decoration *decoration) | |
218 | { | |
219 | if (decoration_flags == DECORATE_SHORT_REFS) | |
220 | strbuf_addstr(sb, prettify_refname(decoration->name)); | |
221 | else | |
222 | strbuf_addstr(sb, decoration->name); | |
223 | } | |
224 | ||
225 | /* | |
226 | * The caller makes sure there is no funny color before calling. | |
227 | * format_decorations_extended makes sure the same after return. | |
228 | */ | |
229 | void format_decorations_extended(struct strbuf *sb, | |
230 | const struct commit *commit, | |
231 | int use_color, | |
232 | const char *prefix, | |
233 | const char *separator, | |
234 | const char *suffix) | |
235 | { | |
236 | const struct name_decoration *decoration; | |
237 | const struct name_decoration *current_and_HEAD; | |
238 | const char *color_commit = | |
239 | diff_get_color(use_color, DIFF_COMMIT); | |
240 | const char *color_reset = | |
241 | decorate_get_color(use_color, DECORATION_NONE); | |
242 | ||
243 | decoration = get_name_decoration(&commit->object); | |
244 | if (!decoration) | |
245 | return; | |
246 | ||
247 | current_and_HEAD = current_pointed_by_HEAD(decoration); | |
248 | while (decoration) { | |
249 | /* | |
250 | * When both current and HEAD are there, only | |
251 | * show HEAD->current where HEAD would have | |
252 | * appeared, skipping the entry for current. | |
253 | */ | |
254 | if (decoration != current_and_HEAD) { | |
255 | strbuf_addstr(sb, color_commit); | |
256 | strbuf_addstr(sb, prefix); | |
257 | strbuf_addstr(sb, color_reset); | |
258 | strbuf_addstr(sb, decorate_get_color(use_color, decoration->type)); | |
259 | if (decoration->type == DECORATION_REF_TAG) | |
260 | strbuf_addstr(sb, "tag: "); | |
261 | ||
262 | show_name(sb, decoration); | |
263 | ||
264 | if (current_and_HEAD && | |
265 | decoration->type == DECORATION_REF_HEAD) { | |
266 | strbuf_addstr(sb, color_reset); | |
267 | strbuf_addstr(sb, color_commit); | |
268 | strbuf_addstr(sb, " -> "); | |
269 | strbuf_addstr(sb, color_reset); | |
270 | strbuf_addstr(sb, decorate_get_color(use_color, current_and_HEAD->type)); | |
271 | show_name(sb, current_and_HEAD); | |
272 | } | |
273 | strbuf_addstr(sb, color_reset); | |
274 | ||
275 | prefix = separator; | |
276 | } | |
277 | decoration = decoration->next; | |
278 | } | |
279 | strbuf_addstr(sb, color_commit); | |
280 | strbuf_addstr(sb, suffix); | |
281 | strbuf_addstr(sb, color_reset); | |
282 | } | |
283 | ||
284 | void show_decorations(struct rev_info *opt, struct commit *commit) | |
285 | { | |
286 | struct strbuf sb = STRBUF_INIT; | |
287 | ||
288 | if (opt->show_source && commit->util) | |
289 | printf("\t%s", (char *) commit->util); | |
290 | if (!opt->show_decorations) | |
291 | return; | |
292 | format_decorations(&sb, commit, opt->diffopt.use_color); | |
293 | fputs(sb.buf, stdout); | |
294 | strbuf_release(&sb); | |
295 | } | |
296 | ||
297 | static unsigned int digits_in_number(unsigned int number) | |
298 | { | |
299 | unsigned int i = 10, result = 1; | |
300 | while (i <= number) { | |
301 | i *= 10; | |
302 | result++; | |
303 | } | |
304 | return result; | |
305 | } | |
306 | ||
307 | void fmt_output_subject(struct strbuf *filename, | |
308 | const char *subject, | |
309 | struct rev_info *info) | |
310 | { | |
311 | const char *suffix = info->patch_suffix; | |
312 | int nr = info->nr; | |
313 | int start_len = filename->len; | |
314 | int max_len = start_len + FORMAT_PATCH_NAME_MAX - (strlen(suffix) + 1); | |
315 | ||
316 | if (0 < info->reroll_count) | |
317 | strbuf_addf(filename, "v%d-", info->reroll_count); | |
318 | strbuf_addf(filename, "%04d-%s", nr, subject); | |
319 | ||
320 | if (max_len < filename->len) | |
321 | strbuf_setlen(filename, max_len); | |
322 | strbuf_addstr(filename, suffix); | |
323 | } | |
324 | ||
325 | void fmt_output_commit(struct strbuf *filename, | |
326 | struct commit *commit, | |
327 | struct rev_info *info) | |
328 | { | |
329 | struct pretty_print_context ctx = {0}; | |
330 | struct strbuf subject = STRBUF_INIT; | |
331 | ||
332 | format_commit_message(commit, "%f", &subject, &ctx); | |
333 | fmt_output_subject(filename, subject.buf, info); | |
334 | strbuf_release(&subject); | |
335 | } | |
336 | ||
337 | void log_write_email_headers(struct rev_info *opt, struct commit *commit, | |
338 | const char **subject_p, | |
339 | const char **extra_headers_p, | |
340 | int *need_8bit_cte_p) | |
341 | { | |
342 | const char *subject = NULL; | |
343 | const char *extra_headers = opt->extra_headers; | |
344 | const char *name = sha1_to_hex(commit->object.sha1); | |
345 | ||
346 | *need_8bit_cte_p = 0; /* unknown */ | |
347 | if (opt->total > 0) { | |
348 | static char buffer[64]; | |
349 | snprintf(buffer, sizeof(buffer), | |
350 | "Subject: [%s%s%0*d/%d] ", | |
351 | opt->subject_prefix, | |
352 | *opt->subject_prefix ? " " : "", | |
353 | digits_in_number(opt->total), | |
354 | opt->nr, opt->total); | |
355 | subject = buffer; | |
356 | } else if (opt->total == 0 && opt->subject_prefix && *opt->subject_prefix) { | |
357 | static char buffer[256]; | |
358 | snprintf(buffer, sizeof(buffer), | |
359 | "Subject: [%s] ", | |
360 | opt->subject_prefix); | |
361 | subject = buffer; | |
362 | } else { | |
363 | subject = "Subject: "; | |
364 | } | |
365 | ||
366 | printf("From %s Mon Sep 17 00:00:00 2001\n", name); | |
367 | graph_show_oneline(opt->graph); | |
368 | if (opt->message_id) { | |
369 | printf("Message-Id: <%s>\n", opt->message_id); | |
370 | graph_show_oneline(opt->graph); | |
371 | } | |
372 | if (opt->ref_message_ids && opt->ref_message_ids->nr > 0) { | |
373 | int i, n; | |
374 | n = opt->ref_message_ids->nr; | |
375 | printf("In-Reply-To: <%s>\n", opt->ref_message_ids->items[n-1].string); | |
376 | for (i = 0; i < n; i++) | |
377 | printf("%s<%s>\n", (i > 0 ? "\t" : "References: "), | |
378 | opt->ref_message_ids->items[i].string); | |
379 | graph_show_oneline(opt->graph); | |
380 | } | |
381 | if (opt->mime_boundary) { | |
382 | static char subject_buffer[1024]; | |
383 | static char buffer[1024]; | |
384 | struct strbuf filename = STRBUF_INIT; | |
385 | *need_8bit_cte_p = -1; /* NEVER */ | |
386 | snprintf(subject_buffer, sizeof(subject_buffer) - 1, | |
387 | "%s" | |
388 | "MIME-Version: 1.0\n" | |
389 | "Content-Type: multipart/mixed;" | |
390 | " boundary=\"%s%s\"\n" | |
391 | "\n" | |
392 | "This is a multi-part message in MIME " | |
393 | "format.\n" | |
394 | "--%s%s\n" | |
395 | "Content-Type: text/plain; " | |
396 | "charset=UTF-8; format=fixed\n" | |
397 | "Content-Transfer-Encoding: 8bit\n\n", | |
398 | extra_headers ? extra_headers : "", | |
399 | mime_boundary_leader, opt->mime_boundary, | |
400 | mime_boundary_leader, opt->mime_boundary); | |
401 | extra_headers = subject_buffer; | |
402 | ||
403 | if (opt->numbered_files) | |
404 | strbuf_addf(&filename, "%d", opt->nr); | |
405 | else | |
406 | fmt_output_commit(&filename, commit, opt); | |
407 | snprintf(buffer, sizeof(buffer) - 1, | |
408 | "\n--%s%s\n" | |
409 | "Content-Type: text/x-patch;" | |
410 | " name=\"%s\"\n" | |
411 | "Content-Transfer-Encoding: 8bit\n" | |
412 | "Content-Disposition: %s;" | |
413 | " filename=\"%s\"\n\n", | |
414 | mime_boundary_leader, opt->mime_boundary, | |
415 | filename.buf, | |
416 | opt->no_inline ? "attachment" : "inline", | |
417 | filename.buf); | |
418 | opt->diffopt.stat_sep = buffer; | |
419 | strbuf_release(&filename); | |
420 | } | |
421 | *subject_p = subject; | |
422 | *extra_headers_p = extra_headers; | |
423 | } | |
424 | ||
425 | static void show_sig_lines(struct rev_info *opt, int status, const char *bol) | |
426 | { | |
427 | const char *color, *reset, *eol; | |
428 | ||
429 | color = diff_get_color_opt(&opt->diffopt, | |
430 | status ? DIFF_WHITESPACE : DIFF_FRAGINFO); | |
431 | reset = diff_get_color_opt(&opt->diffopt, DIFF_RESET); | |
432 | while (*bol) { | |
433 | eol = strchrnul(bol, '\n'); | |
434 | printf("%s%.*s%s%s", color, (int)(eol - bol), bol, reset, | |
435 | *eol ? "\n" : ""); | |
436 | graph_show_oneline(opt->graph); | |
437 | bol = (*eol) ? (eol + 1) : eol; | |
438 | } | |
439 | } | |
440 | ||
441 | static void show_signature(struct rev_info *opt, struct commit *commit) | |
442 | { | |
443 | struct strbuf payload = STRBUF_INIT; | |
444 | struct strbuf signature = STRBUF_INIT; | |
445 | struct strbuf gpg_output = STRBUF_INIT; | |
446 | int status; | |
447 | ||
448 | if (parse_signed_commit(commit, &payload, &signature) <= 0) | |
449 | goto out; | |
450 | ||
451 | status = verify_signed_buffer(payload.buf, payload.len, | |
452 | signature.buf, signature.len, | |
453 | &gpg_output, NULL); | |
454 | if (status && !gpg_output.len) | |
455 | strbuf_addstr(&gpg_output, "No signature\n"); | |
456 | ||
457 | show_sig_lines(opt, status, gpg_output.buf); | |
458 | ||
459 | out: | |
460 | strbuf_release(&gpg_output); | |
461 | strbuf_release(&payload); | |
462 | strbuf_release(&signature); | |
463 | } | |
464 | ||
465 | static int which_parent(const unsigned char *sha1, const struct commit *commit) | |
466 | { | |
467 | int nth; | |
468 | const struct commit_list *parent; | |
469 | ||
470 | for (nth = 0, parent = commit->parents; parent; parent = parent->next) { | |
471 | if (!hashcmp(parent->item->object.sha1, sha1)) | |
472 | return nth; | |
473 | nth++; | |
474 | } | |
475 | return -1; | |
476 | } | |
477 | ||
478 | static int is_common_merge(const struct commit *commit) | |
479 | { | |
480 | return (commit->parents | |
481 | && commit->parents->next | |
482 | && !commit->parents->next->next); | |
483 | } | |
484 | ||
485 | static void show_one_mergetag(struct commit *commit, | |
486 | struct commit_extra_header *extra, | |
487 | void *data) | |
488 | { | |
489 | struct rev_info *opt = (struct rev_info *)data; | |
490 | unsigned char sha1[20]; | |
491 | struct tag *tag; | |
492 | struct strbuf verify_message; | |
493 | int status, nth; | |
494 | size_t payload_size, gpg_message_offset; | |
495 | ||
496 | hash_sha1_file(extra->value, extra->len, typename(OBJ_TAG), sha1); | |
497 | tag = lookup_tag(sha1); | |
498 | if (!tag) | |
499 | return; /* error message already given */ | |
500 | ||
501 | strbuf_init(&verify_message, 256); | |
502 | if (parse_tag_buffer(tag, extra->value, extra->len)) | |
503 | strbuf_addstr(&verify_message, "malformed mergetag\n"); | |
504 | else if (is_common_merge(commit) && | |
505 | !hashcmp(tag->tagged->sha1, | |
506 | commit->parents->next->item->object.sha1)) | |
507 | strbuf_addf(&verify_message, | |
508 | "merged tag '%s'\n", tag->tag); | |
509 | else if ((nth = which_parent(tag->tagged->sha1, commit)) < 0) | |
510 | strbuf_addf(&verify_message, "tag %s names a non-parent %s\n", | |
511 | tag->tag, tag->tagged->sha1); | |
512 | else | |
513 | strbuf_addf(&verify_message, | |
514 | "parent #%d, tagged '%s'\n", nth + 1, tag->tag); | |
515 | gpg_message_offset = verify_message.len; | |
516 | ||
517 | payload_size = parse_signature(extra->value, extra->len); | |
518 | status = -1; | |
519 | if (extra->len > payload_size) { | |
520 | /* could have a good signature */ | |
521 | if (!verify_signed_buffer(extra->value, payload_size, | |
522 | extra->value + payload_size, | |
523 | extra->len - payload_size, | |
524 | &verify_message, NULL)) | |
525 | status = 0; /* good */ | |
526 | else if (verify_message.len <= gpg_message_offset) | |
527 | strbuf_addstr(&verify_message, "No signature\n"); | |
528 | /* otherwise we couldn't verify, which is shown as bad */ | |
529 | } | |
530 | ||
531 | show_sig_lines(opt, status, verify_message.buf); | |
532 | strbuf_release(&verify_message); | |
533 | } | |
534 | ||
535 | static void show_mergetag(struct rev_info *opt, struct commit *commit) | |
536 | { | |
537 | for_each_mergetag(show_one_mergetag, commit, opt); | |
538 | } | |
539 | ||
540 | void show_log(struct rev_info *opt) | |
541 | { | |
542 | struct strbuf msgbuf = STRBUF_INIT; | |
543 | struct log_info *log = opt->loginfo; | |
544 | struct commit *commit = log->commit, *parent = log->parent; | |
545 | int abbrev_commit = opt->abbrev_commit ? opt->abbrev : 40; | |
546 | const char *extra_headers = opt->extra_headers; | |
547 | struct pretty_print_context ctx = {0}; | |
548 | ||
549 | opt->loginfo = NULL; | |
550 | if (!opt->verbose_header) { | |
551 | graph_show_commit(opt->graph); | |
552 | ||
553 | if (!opt->graph) | |
554 | put_revision_mark(opt, commit); | |
555 | fputs(find_unique_abbrev(commit->object.sha1, abbrev_commit), stdout); | |
556 | if (opt->print_parents) | |
557 | show_parents(commit, abbrev_commit); | |
558 | if (opt->children.name) | |
559 | show_children(opt, commit, abbrev_commit); | |
560 | show_decorations(opt, commit); | |
561 | if (opt->graph && !graph_is_commit_finished(opt->graph)) { | |
562 | putchar('\n'); | |
563 | graph_show_remainder(opt->graph); | |
564 | } | |
565 | putchar(opt->diffopt.line_termination); | |
566 | return; | |
567 | } | |
568 | ||
569 | /* | |
570 | * If use_terminator is set, we already handled any record termination | |
571 | * at the end of the last record. | |
572 | * Otherwise, add a diffopt.line_termination character before all | |
573 | * entries but the first. (IOW, as a separator between entries) | |
574 | */ | |
575 | if (opt->shown_one && !opt->use_terminator) { | |
576 | /* | |
577 | * If entries are separated by a newline, the output | |
578 | * should look human-readable. If the last entry ended | |
579 | * with a newline, print the graph output before this | |
580 | * newline. Otherwise it will end up as a completely blank | |
581 | * line and will look like a gap in the graph. | |
582 | * | |
583 | * If the entry separator is not a newline, the output is | |
584 | * primarily intended for programmatic consumption, and we | |
585 | * never want the extra graph output before the entry | |
586 | * separator. | |
587 | */ | |
588 | if (opt->diffopt.line_termination == '\n' && | |
589 | !opt->missing_newline) | |
590 | graph_show_padding(opt->graph); | |
591 | putchar(opt->diffopt.line_termination); | |
592 | } | |
593 | opt->shown_one = 1; | |
594 | ||
595 | /* | |
596 | * If the history graph was requested, | |
597 | * print the graph, up to this commit's line | |
598 | */ | |
599 | graph_show_commit(opt->graph); | |
600 | ||
601 | /* | |
602 | * Print header line of header.. | |
603 | */ | |
604 | ||
605 | if (opt->commit_format == CMIT_FMT_EMAIL) { | |
606 | log_write_email_headers(opt, commit, &ctx.subject, &extra_headers, | |
607 | &ctx.need_8bit_cte); | |
608 | } else if (opt->commit_format != CMIT_FMT_USERFORMAT) { | |
609 | fputs(diff_get_color_opt(&opt->diffopt, DIFF_COMMIT), stdout); | |
610 | if (opt->commit_format != CMIT_FMT_ONELINE) | |
611 | fputs("commit ", stdout); | |
612 | ||
613 | if (!opt->graph) | |
614 | put_revision_mark(opt, commit); | |
615 | fputs(find_unique_abbrev(commit->object.sha1, abbrev_commit), | |
616 | stdout); | |
617 | if (opt->print_parents) | |
618 | show_parents(commit, abbrev_commit); | |
619 | if (opt->children.name) | |
620 | show_children(opt, commit, abbrev_commit); | |
621 | if (parent) | |
622 | printf(" (from %s)", | |
623 | find_unique_abbrev(parent->object.sha1, | |
624 | abbrev_commit)); | |
625 | fputs(diff_get_color_opt(&opt->diffopt, DIFF_RESET), stdout); | |
626 | show_decorations(opt, commit); | |
627 | if (opt->commit_format == CMIT_FMT_ONELINE) { | |
628 | putchar(' '); | |
629 | } else { | |
630 | putchar('\n'); | |
631 | graph_show_oneline(opt->graph); | |
632 | } | |
633 | if (opt->reflog_info) { | |
634 | /* | |
635 | * setup_revisions() ensures that opt->reflog_info | |
636 | * and opt->graph cannot both be set, | |
637 | * so we don't need to worry about printing the | |
638 | * graph info here. | |
639 | */ | |
640 | show_reflog_message(opt->reflog_info, | |
641 | opt->commit_format == CMIT_FMT_ONELINE, | |
642 | opt->date_mode, | |
643 | opt->date_mode_explicit); | |
644 | if (opt->commit_format == CMIT_FMT_ONELINE) | |
645 | return; | |
646 | } | |
647 | } | |
648 | ||
649 | if (opt->show_signature) { | |
650 | show_signature(opt, commit); | |
651 | show_mergetag(opt, commit); | |
652 | } | |
653 | ||
654 | if (!get_cached_commit_buffer(commit, NULL)) | |
655 | return; | |
656 | ||
657 | if (opt->show_notes) { | |
658 | int raw; | |
659 | struct strbuf notebuf = STRBUF_INIT; | |
660 | ||
661 | raw = (opt->commit_format == CMIT_FMT_USERFORMAT); | |
662 | format_display_notes(commit->object.sha1, ¬ebuf, | |
663 | get_log_output_encoding(), raw); | |
664 | ctx.notes_message = notebuf.len | |
665 | ? strbuf_detach(¬ebuf, NULL) | |
666 | : xcalloc(1, 1); | |
667 | } | |
668 | ||
669 | /* | |
670 | * And then the pretty-printed message itself | |
671 | */ | |
672 | if (ctx.need_8bit_cte >= 0 && opt->add_signoff) | |
673 | ctx.need_8bit_cte = | |
674 | has_non_ascii(fmt_name(getenv("GIT_COMMITTER_NAME"), | |
675 | getenv("GIT_COMMITTER_EMAIL"))); | |
676 | ctx.date_mode = opt->date_mode; | |
677 | ctx.date_mode_explicit = opt->date_mode_explicit; | |
678 | ctx.abbrev = opt->diffopt.abbrev; | |
679 | ctx.after_subject = extra_headers; | |
680 | ctx.preserve_subject = opt->preserve_subject; | |
681 | ctx.reflog_info = opt->reflog_info; | |
682 | ctx.fmt = opt->commit_format; | |
683 | ctx.mailmap = opt->mailmap; | |
684 | ctx.color = opt->diffopt.use_color; | |
685 | ctx.output_encoding = get_log_output_encoding(); | |
686 | if (opt->from_ident.mail_begin && opt->from_ident.name_begin) | |
687 | ctx.from_ident = &opt->from_ident; | |
688 | pretty_print_commit(&ctx, commit, &msgbuf); | |
689 | ||
690 | if (opt->add_signoff) | |
691 | append_signoff(&msgbuf, 0, APPEND_SIGNOFF_DEDUP); | |
692 | ||
693 | if ((ctx.fmt != CMIT_FMT_USERFORMAT) && | |
694 | ctx.notes_message && *ctx.notes_message) { | |
695 | if (ctx.fmt == CMIT_FMT_EMAIL) { | |
696 | strbuf_addstr(&msgbuf, "---\n"); | |
697 | opt->shown_dashes = 1; | |
698 | } | |
699 | strbuf_addstr(&msgbuf, ctx.notes_message); | |
700 | } | |
701 | ||
702 | if (opt->show_log_size) { | |
703 | printf("log size %i\n", (int)msgbuf.len); | |
704 | graph_show_oneline(opt->graph); | |
705 | } | |
706 | ||
707 | /* | |
708 | * Set opt->missing_newline if msgbuf doesn't | |
709 | * end in a newline (including if it is empty) | |
710 | */ | |
711 | if (!msgbuf.len || msgbuf.buf[msgbuf.len - 1] != '\n') | |
712 | opt->missing_newline = 1; | |
713 | else | |
714 | opt->missing_newline = 0; | |
715 | ||
716 | if (opt->graph) | |
717 | graph_show_commit_msg(opt->graph, &msgbuf); | |
718 | else | |
719 | fwrite(msgbuf.buf, sizeof(char), msgbuf.len, stdout); | |
720 | if (opt->use_terminator && !commit_format_is_empty(opt->commit_format)) { | |
721 | if (!opt->missing_newline) | |
722 | graph_show_padding(opt->graph); | |
723 | putchar(opt->diffopt.line_termination); | |
724 | } | |
725 | ||
726 | strbuf_release(&msgbuf); | |
727 | free(ctx.notes_message); | |
728 | } | |
729 | ||
730 | int log_tree_diff_flush(struct rev_info *opt) | |
731 | { | |
732 | opt->shown_dashes = 0; | |
733 | diffcore_std(&opt->diffopt); | |
734 | ||
735 | if (diff_queue_is_empty()) { | |
736 | int saved_fmt = opt->diffopt.output_format; | |
737 | opt->diffopt.output_format = DIFF_FORMAT_NO_OUTPUT; | |
738 | diff_flush(&opt->diffopt); | |
739 | opt->diffopt.output_format = saved_fmt; | |
740 | return 0; | |
741 | } | |
742 | ||
743 | if (opt->loginfo && !opt->no_commit_id) { | |
744 | show_log(opt); | |
745 | if ((opt->diffopt.output_format & ~DIFF_FORMAT_NO_OUTPUT) && | |
746 | opt->verbose_header && | |
747 | opt->commit_format != CMIT_FMT_ONELINE && | |
748 | !commit_format_is_empty(opt->commit_format)) { | |
749 | /* | |
750 | * When showing a verbose header (i.e. log message), | |
751 | * and not in --pretty=oneline format, we would want | |
752 | * an extra newline between the end of log and the | |
753 | * diff/diffstat output for readability. | |
754 | */ | |
755 | int pch = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_PATCH; | |
756 | if (opt->diffopt.output_prefix) { | |
757 | struct strbuf *msg = NULL; | |
758 | msg = opt->diffopt.output_prefix(&opt->diffopt, | |
759 | opt->diffopt.output_prefix_data); | |
760 | fwrite(msg->buf, msg->len, 1, stdout); | |
761 | } | |
762 | ||
763 | /* | |
764 | * We may have shown three-dashes line early | |
765 | * between notes and the log message, in which | |
766 | * case we only want a blank line after the | |
767 | * notes without (an extra) three-dashes line. | |
768 | * Otherwise, we show the three-dashes line if | |
769 | * we are showing the patch with diffstat, but | |
770 | * in that case, there is no extra blank line | |
771 | * after the three-dashes line. | |
772 | */ | |
773 | if (!opt->shown_dashes && | |
774 | (pch & opt->diffopt.output_format) == pch) | |
775 | printf("---"); | |
776 | putchar('\n'); | |
777 | } | |
778 | } | |
779 | diff_flush(&opt->diffopt); | |
780 | return 1; | |
781 | } | |
782 | ||
783 | static int do_diff_combined(struct rev_info *opt, struct commit *commit) | |
784 | { | |
785 | diff_tree_combined_merge(commit, opt->dense_combined_merges, opt); | |
786 | return !opt->loginfo; | |
787 | } | |
788 | ||
789 | /* | |
790 | * Show the diff of a commit. | |
791 | * | |
792 | * Return true if we printed any log info messages | |
793 | */ | |
794 | static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log_info *log) | |
795 | { | |
796 | int showed_log; | |
797 | struct commit_list *parents; | |
798 | unsigned const char *sha1; | |
799 | ||
800 | if (!opt->diff && !DIFF_OPT_TST(&opt->diffopt, EXIT_WITH_STATUS)) | |
801 | return 0; | |
802 | ||
803 | parse_commit_or_die(commit); | |
804 | sha1 = commit->tree->object.sha1; | |
805 | ||
806 | /* Root commit? */ | |
807 | parents = get_saved_parents(opt, commit); | |
808 | if (!parents) { | |
809 | if (opt->show_root_diff) { | |
810 | diff_root_tree_sha1(sha1, "", &opt->diffopt); | |
811 | log_tree_diff_flush(opt); | |
812 | } | |
813 | return !opt->loginfo; | |
814 | } | |
815 | ||
816 | /* More than one parent? */ | |
817 | if (parents && parents->next) { | |
818 | if (opt->ignore_merges) | |
819 | return 0; | |
820 | else if (opt->combine_merges) | |
821 | return do_diff_combined(opt, commit); | |
822 | else if (opt->first_parent_only) { | |
823 | /* | |
824 | * Generate merge log entry only for the first | |
825 | * parent, showing summary diff of the others | |
826 | * we merged _in_. | |
827 | */ | |
828 | parse_commit_or_die(parents->item); | |
829 | diff_tree_sha1(parents->item->tree->object.sha1, | |
830 | sha1, "", &opt->diffopt); | |
831 | log_tree_diff_flush(opt); | |
832 | return !opt->loginfo; | |
833 | } | |
834 | ||
835 | /* If we show individual diffs, show the parent info */ | |
836 | log->parent = parents->item; | |
837 | } | |
838 | ||
839 | showed_log = 0; | |
840 | for (;;) { | |
841 | struct commit *parent = parents->item; | |
842 | ||
843 | parse_commit_or_die(parent); | |
844 | diff_tree_sha1(parent->tree->object.sha1, | |
845 | sha1, "", &opt->diffopt); | |
846 | log_tree_diff_flush(opt); | |
847 | ||
848 | showed_log |= !opt->loginfo; | |
849 | ||
850 | /* Set up the log info for the next parent, if any.. */ | |
851 | parents = parents->next; | |
852 | if (!parents) | |
853 | break; | |
854 | log->parent = parents->item; | |
855 | opt->loginfo = log; | |
856 | } | |
857 | return showed_log; | |
858 | } | |
859 | ||
860 | int log_tree_commit(struct rev_info *opt, struct commit *commit) | |
861 | { | |
862 | struct log_info log; | |
863 | int shown; | |
864 | ||
865 | log.commit = commit; | |
866 | log.parent = NULL; | |
867 | opt->loginfo = &log; | |
868 | ||
869 | if (opt->line_level_traverse) | |
870 | return line_log_print(opt, commit); | |
871 | ||
872 | if (opt->track_linear && !opt->linear && !opt->reverse_output_stage) | |
873 | printf("\n%s\n", opt->break_bar); | |
874 | shown = log_tree_diff(opt, commit, &log); | |
875 | if (!shown && opt->loginfo && opt->always_show_header) { | |
876 | log.parent = NULL; | |
877 | show_log(opt); | |
878 | shown = 1; | |
879 | } | |
880 | if (opt->track_linear && !opt->linear && opt->reverse_output_stage) | |
881 | printf("\n%s\n", opt->break_bar); | |
882 | opt->loginfo = NULL; | |
883 | maybe_flush_or_die(stdout, "stdout"); | |
884 | return shown; | |
885 | } |