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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" | |
4 | #include "log-tree.h" | |
8860fd42 | 5 | #include "reflog-walk.h" |
5f1c3f07 | 6 | |
ca135e7a LT |
7 | struct decoration name_decoration = { "object names" }; |
8 | ||
c8c893c6 LT |
9 | static void show_parents(struct commit *commit, int abbrev) |
10 | { | |
11 | struct commit_list *p; | |
12 | for (p = commit->parents; p ; p = p->next) { | |
13 | struct commit *parent = p->item; | |
14 | printf(" %s", diff_unique_abbrev(parent->object.sha1, abbrev)); | |
15 | } | |
16 | } | |
17 | ||
50e62a8e | 18 | void show_decorations(struct commit *commit) |
ca135e7a LT |
19 | { |
20 | const char *prefix; | |
21 | struct name_decoration *decoration; | |
22 | ||
23 | decoration = lookup_decoration(&name_decoration, &commit->object); | |
24 | if (!decoration) | |
25 | return; | |
26 | prefix = " ("; | |
27 | while (decoration) { | |
28 | printf("%s%s", prefix, decoration->name); | |
29 | prefix = ", "; | |
30 | decoration = decoration->next; | |
31 | } | |
32 | putchar(')'); | |
33 | } | |
34 | ||
fc1c75ec FBH |
35 | /* |
36 | * Search for "^[-A-Za-z]+: [^@]+@" pattern. It usually matches | |
37 | * Signed-off-by: and Acked-by: lines. | |
38 | */ | |
39 | static int detect_any_signoff(char *letter, int size) | |
40 | { | |
41 | char ch, *cp; | |
42 | int seen_colon = 0; | |
43 | int seen_at = 0; | |
44 | int seen_name = 0; | |
45 | int seen_head = 0; | |
46 | ||
47 | cp = letter + size; | |
48 | while (letter <= --cp && (ch = *cp) == '\n') | |
49 | continue; | |
50 | ||
51 | while (letter <= cp) { | |
52 | ch = *cp--; | |
53 | if (ch == '\n') | |
54 | break; | |
55 | ||
56 | if (!seen_at) { | |
57 | if (ch == '@') | |
58 | seen_at = 1; | |
59 | continue; | |
60 | } | |
61 | if (!seen_colon) { | |
62 | if (ch == '@') | |
63 | return 0; | |
64 | else if (ch == ':') | |
65 | seen_colon = 1; | |
66 | else | |
67 | seen_name = 1; | |
68 | continue; | |
69 | } | |
70 | if (('A' <= ch && ch <= 'Z') || | |
71 | ('a' <= ch && ch <= 'z') || | |
72 | ch == '-') { | |
73 | seen_head = 1; | |
74 | continue; | |
75 | } | |
76 | /* no empty last line doesn't match */ | |
77 | return 0; | |
78 | } | |
79 | return seen_head && seen_name; | |
80 | } | |
81 | ||
674d1727 | 82 | static void append_signoff(struct strbuf *sb, const char *signoff) |
cf2251b6 | 83 | { |
cf2251b6 | 84 | static const char signed_off_by[] = "Signed-off-by: "; |
80583c0e | 85 | size_t signoff_len = strlen(signoff); |
fc1c75ec | 86 | int has_signoff = 0; |
80583c0e | 87 | char *cp; |
cf2251b6 | 88 | |
674d1727 | 89 | cp = sb->buf; |
cf2251b6 JH |
90 | |
91 | /* First see if we already have the sign-off by the signer */ | |
fc1c75ec FBH |
92 | while ((cp = strstr(cp, signed_off_by))) { |
93 | ||
94 | has_signoff = 1; | |
95 | ||
cf2251b6 | 96 | cp += strlen(signed_off_by); |
674d1727 | 97 | if (cp + signoff_len >= sb->buf + sb->len) |
fc1c75ec FBH |
98 | break; |
99 | if (strncmp(cp, signoff, signoff_len)) | |
100 | continue; | |
101 | if (!isspace(cp[signoff_len])) | |
102 | continue; | |
103 | /* we already have him */ | |
674d1727 | 104 | return; |
cf2251b6 JH |
105 | } |
106 | ||
fc1c75ec | 107 | if (!has_signoff) |
674d1727 | 108 | has_signoff = detect_any_signoff(sb->buf, sb->len); |
fc1c75ec FBH |
109 | |
110 | if (!has_signoff) | |
674d1727 | 111 | strbuf_addch(sb, '\n'); |
c35f4c37 | 112 | |
674d1727 PH |
113 | strbuf_addstr(sb, signed_off_by); |
114 | strbuf_add(sb, signoff, signoff_len); | |
115 | strbuf_addch(sb, '\n'); | |
cf2251b6 JH |
116 | } |
117 | ||
e00de24b JS |
118 | static unsigned int digits_in_number(unsigned int number) |
119 | { | |
120 | unsigned int i = 10, result = 1; | |
121 | while (i <= number) { | |
122 | i *= 10; | |
123 | result++; | |
124 | } | |
125 | return result; | |
126 | } | |
127 | ||
4593fb84 JH |
128 | static int has_non_ascii(const char *s) |
129 | { | |
130 | int ch; | |
131 | if (!s) | |
132 | return 0; | |
133 | while ((ch = *s++) != '\0') { | |
134 | if (non_ascii(ch)) | |
135 | return 1; | |
136 | } | |
137 | return 0; | |
138 | } | |
139 | ||
b02bd65f DB |
140 | void log_write_email_headers(struct rev_info *opt, const char *name, |
141 | const char **subject_p, const char **extra_headers_p) | |
142 | { | |
143 | const char *subject = NULL; | |
144 | const char *extra_headers = opt->extra_headers; | |
145 | if (opt->total > 0) { | |
146 | static char buffer[64]; | |
147 | snprintf(buffer, sizeof(buffer), | |
148 | "Subject: [%s %0*d/%d] ", | |
149 | opt->subject_prefix, | |
150 | digits_in_number(opt->total), | |
151 | opt->nr, opt->total); | |
152 | subject = buffer; | |
153 | } else if (opt->total == 0 && opt->subject_prefix && *opt->subject_prefix) { | |
154 | static char buffer[256]; | |
155 | snprintf(buffer, sizeof(buffer), | |
156 | "Subject: [%s] ", | |
157 | opt->subject_prefix); | |
158 | subject = buffer; | |
159 | } else { | |
160 | subject = "Subject: "; | |
161 | } | |
162 | ||
163 | printf("From %s Mon Sep 17 00:00:00 2001\n", name); | |
164 | if (opt->message_id) | |
165 | printf("Message-Id: <%s>\n", opt->message_id); | |
166 | if (opt->ref_message_id) | |
167 | printf("In-Reply-To: <%s>\nReferences: <%s>\n", | |
168 | opt->ref_message_id, opt->ref_message_id); | |
169 | if (opt->mime_boundary) { | |
170 | static char subject_buffer[1024]; | |
171 | static char buffer[1024]; | |
172 | snprintf(subject_buffer, sizeof(subject_buffer) - 1, | |
173 | "%s" | |
174 | "MIME-Version: 1.0\n" | |
175 | "Content-Type: multipart/mixed;" | |
176 | " boundary=\"%s%s\"\n" | |
177 | "\n" | |
178 | "This is a multi-part message in MIME " | |
179 | "format.\n" | |
180 | "--%s%s\n" | |
181 | "Content-Type: text/plain; " | |
182 | "charset=UTF-8; format=fixed\n" | |
183 | "Content-Transfer-Encoding: 8bit\n\n", | |
184 | extra_headers ? extra_headers : "", | |
185 | mime_boundary_leader, opt->mime_boundary, | |
186 | mime_boundary_leader, opt->mime_boundary); | |
187 | extra_headers = subject_buffer; | |
188 | ||
189 | snprintf(buffer, sizeof(buffer) - 1, | |
190 | "--%s%s\n" | |
191 | "Content-Type: text/x-patch;" | |
192 | " name=\"%s.diff\"\n" | |
193 | "Content-Transfer-Encoding: 8bit\n" | |
194 | "Content-Disposition: %s;" | |
195 | " filename=\"%s.diff\"\n\n", | |
196 | mime_boundary_leader, opt->mime_boundary, | |
197 | name, | |
198 | opt->no_inline ? "attachment" : "inline", | |
199 | name); | |
200 | opt->diffopt.stat_sep = buffer; | |
201 | } | |
202 | *subject_p = subject; | |
203 | *extra_headers_p = extra_headers; | |
204 | } | |
205 | ||
39bc9a6c | 206 | void show_log(struct rev_info *opt, const char *sep) |
91539833 | 207 | { |
674d1727 | 208 | struct strbuf msgbuf; |
39bc9a6c | 209 | struct log_info *log = opt->loginfo; |
91539833 LT |
210 | struct commit *commit = log->commit, *parent = log->parent; |
211 | int abbrev = opt->diffopt.abbrev; | |
212 | int abbrev_commit = opt->abbrev_commit ? opt->abbrev : 40; | |
a4d34e2d | 213 | const char *extra; |
20ff0680 | 214 | const char *subject = NULL, *extra_headers = opt->extra_headers; |
91539833 LT |
215 | |
216 | opt->loginfo = NULL; | |
217 | if (!opt->verbose_header) { | |
3131b713 LT |
218 | if (commit->object.flags & BOUNDARY) |
219 | putchar('-'); | |
220 | else if (commit->object.flags & UNINTERESTING) | |
221 | putchar('^'); | |
222 | else if (opt->left_right) { | |
223 | if (commit->object.flags & SYMMETRIC_LEFT) | |
74bd9029 JH |
224 | putchar('<'); |
225 | else | |
226 | putchar('>'); | |
227 | } | |
c8c893c6 LT |
228 | fputs(diff_unique_abbrev(commit->object.sha1, abbrev_commit), stdout); |
229 | if (opt->parents) | |
230 | show_parents(commit, abbrev_commit); | |
ca135e7a | 231 | show_decorations(commit); |
1dcb6922 | 232 | putchar(opt->diffopt.line_termination); |
91539833 LT |
233 | return; |
234 | } | |
235 | ||
236 | /* | |
a4d34e2d LT |
237 | * The "oneline" format has several special cases: |
238 | * - The pretty-printed commit lacks a newline at the end | |
239 | * of the buffer, but we do want to make sure that we | |
240 | * have a newline there. If the separator isn't already | |
241 | * a newline, add an extra one. | |
242 | * - unlike other log messages, the one-line format does | |
243 | * not have an empty line between entries. | |
91539833 | 244 | */ |
a4d34e2d LT |
245 | extra = ""; |
246 | if (*sep != '\n' && opt->commit_format == CMIT_FMT_ONELINE) | |
247 | extra = "\n"; | |
91539833 | 248 | if (opt->shown_one && opt->commit_format != CMIT_FMT_ONELINE) |
abd4e222 | 249 | putchar(opt->diffopt.line_termination); |
91539833 LT |
250 | opt->shown_one = 1; |
251 | ||
252 | /* | |
253 | * Print header line of header.. | |
254 | */ | |
3eefc189 | 255 | |
596524b3 | 256 | if (opt->commit_format == CMIT_FMT_EMAIL) { |
b02bd65f DB |
257 | log_write_email_headers(opt, sha1_to_hex(commit->object.sha1), |
258 | &subject, &extra_headers); | |
e52a5de4 | 259 | } else if (opt->commit_format != CMIT_FMT_USERFORMAT) { |
8f67f8ae | 260 | fputs(diff_get_color_opt(&opt->diffopt, DIFF_COMMIT), stdout); |
74bd9029 JH |
261 | if (opt->commit_format != CMIT_FMT_ONELINE) |
262 | fputs("commit ", stdout); | |
e330a406 LT |
263 | if (commit->object.flags & BOUNDARY) |
264 | putchar('-'); | |
3131b713 LT |
265 | else if (commit->object.flags & UNINTERESTING) |
266 | putchar('^'); | |
e330a406 LT |
267 | else if (opt->left_right) { |
268 | if (commit->object.flags & SYMMETRIC_LEFT) | |
74bd9029 JH |
269 | putchar('<'); |
270 | else | |
271 | putchar('>'); | |
272 | } | |
273 | fputs(diff_unique_abbrev(commit->object.sha1, abbrev_commit), | |
274 | stdout); | |
c66b6c06 JH |
275 | if (opt->parents) |
276 | show_parents(commit, abbrev_commit); | |
73f0a157 | 277 | if (parent) |
3eefc189 JH |
278 | printf(" (from %s)", |
279 | diff_unique_abbrev(parent->object.sha1, | |
280 | abbrev_commit)); | |
ca135e7a | 281 | show_decorations(commit); |
8f67f8ae | 282 | printf("%s", diff_get_color_opt(&opt->diffopt, DIFF_RESET)); |
e557667e | 283 | putchar(opt->commit_format == CMIT_FMT_ONELINE ? ' ' : '\n'); |
903b45fe | 284 | if (opt->reflog_info) { |
4d12a471 | 285 | show_reflog_message(opt->reflog_info, |
4e244cbc | 286 | opt->commit_format == CMIT_FMT_ONELINE, |
a7b02ccf | 287 | opt->date_mode); |
903b45fe NP |
288 | if (opt->commit_format == CMIT_FMT_ONELINE) { |
289 | printf("%s", sep); | |
290 | return; | |
291 | } | |
292 | } | |
3eefc189 | 293 | } |
91539833 | 294 | |
3131b713 LT |
295 | if (!commit->buffer) |
296 | return; | |
297 | ||
91539833 LT |
298 | /* |
299 | * And then the pretty-printed message itself | |
300 | */ | |
674d1727 PH |
301 | strbuf_init(&msgbuf, 0); |
302 | pretty_print_commit(opt->commit_format, commit, &msgbuf, | |
4593fb84 JH |
303 | abbrev, subject, extra_headers, opt->date_mode, |
304 | has_non_ascii(opt->add_signoff)); | |
cf2251b6 JH |
305 | |
306 | if (opt->add_signoff) | |
674d1727 | 307 | append_signoff(&msgbuf, opt->add_signoff); |
9fa3465d | 308 | if (opt->show_log_size) |
674d1727 | 309 | printf("log size %i\n", (int)msgbuf.len); |
9fa3465d | 310 | |
cc61ae82 JH |
311 | if (msgbuf.len) |
312 | printf("%s%s%s", msgbuf.buf, extra, sep); | |
674d1727 | 313 | strbuf_release(&msgbuf); |
91539833 LT |
314 | } |
315 | ||
cd2bdc53 | 316 | int log_tree_diff_flush(struct rev_info *opt) |
5f1c3f07 JH |
317 | { |
318 | diffcore_std(&opt->diffopt); | |
91539833 | 319 | |
5f1c3f07 JH |
320 | if (diff_queue_is_empty()) { |
321 | int saved_fmt = opt->diffopt.output_format; | |
322 | opt->diffopt.output_format = DIFF_FORMAT_NO_OUTPUT; | |
323 | diff_flush(&opt->diffopt); | |
324 | opt->diffopt.output_format = saved_fmt; | |
325 | return 0; | |
326 | } | |
91539833 | 327 | |
3969cf7d JH |
328 | if (opt->loginfo && !opt->no_commit_id) { |
329 | /* When showing a verbose header (i.e. log message), | |
330 | * and not in --pretty=oneline format, we would want | |
331 | * an extra newline between the end of log and the | |
332 | * output for readability. | |
333 | */ | |
39bc9a6c | 334 | show_log(opt, opt->diffopt.msg_sep); |
304b5af6 LT |
335 | if ((opt->diffopt.output_format & ~DIFF_FORMAT_NO_OUTPUT) && |
336 | opt->verbose_header && | |
3969cf7d JH |
337 | opt->commit_format != CMIT_FMT_ONELINE) { |
338 | int pch = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_PATCH; | |
339 | if ((pch & opt->diffopt.output_format) == pch) | |
abd4e222 LT |
340 | printf("---"); |
341 | putchar('\n'); | |
3969cf7d JH |
342 | } |
343 | } | |
5f1c3f07 JH |
344 | diff_flush(&opt->diffopt); |
345 | return 1; | |
346 | } | |
347 | ||
cd2bdc53 | 348 | static int do_diff_combined(struct rev_info *opt, struct commit *commit) |
5f1c3f07 JH |
349 | { |
350 | unsigned const char *sha1 = commit->object.sha1; | |
351 | ||
91539833 LT |
352 | diff_tree_combined_merge(sha1, opt->dense_combined_merges, opt); |
353 | return !opt->loginfo; | |
5f1c3f07 JH |
354 | } |
355 | ||
91539833 LT |
356 | /* |
357 | * Show the diff of a commit. | |
358 | * | |
359 | * Return true if we printed any log info messages | |
360 | */ | |
361 | static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log_info *log) | |
5f1c3f07 | 362 | { |
91539833 | 363 | int showed_log; |
5f1c3f07 JH |
364 | struct commit_list *parents; |
365 | unsigned const char *sha1 = commit->object.sha1; | |
366 | ||
91539833 LT |
367 | if (!opt->diff) |
368 | return 0; | |
369 | ||
5f1c3f07 | 370 | /* Root commit? */ |
91539833 LT |
371 | parents = commit->parents; |
372 | if (!parents) { | |
2b60356d RS |
373 | if (opt->show_root_diff) { |
374 | diff_root_tree_sha1(sha1, "", &opt->diffopt); | |
375 | log_tree_diff_flush(opt); | |
376 | } | |
91539833 | 377 | return !opt->loginfo; |
5f1c3f07 JH |
378 | } |
379 | ||
380 | /* More than one parent? */ | |
91539833 | 381 | if (parents && parents->next) { |
5f1c3f07 JH |
382 | if (opt->ignore_merges) |
383 | return 0; | |
384 | else if (opt->combine_merges) | |
385 | return do_diff_combined(opt, commit); | |
91539833 LT |
386 | |
387 | /* If we show individual diffs, show the parent info */ | |
388 | log->parent = parents->item; | |
5f1c3f07 JH |
389 | } |
390 | ||
91539833 LT |
391 | showed_log = 0; |
392 | for (;;) { | |
5f1c3f07 | 393 | struct commit *parent = parents->item; |
5f1c3f07 | 394 | |
91539833 LT |
395 | diff_tree_sha1(parent->object.sha1, sha1, "", &opt->diffopt); |
396 | log_tree_diff_flush(opt); | |
397 | ||
398 | showed_log |= !opt->loginfo; | |
399 | ||
400 | /* Set up the log info for the next parent, if any.. */ | |
401 | parents = parents->next; | |
402 | if (!parents) | |
403 | break; | |
404 | log->parent = parents->item; | |
405 | opt->loginfo = log; | |
406 | } | |
407 | return showed_log; | |
408 | } | |
409 | ||
410 | int log_tree_commit(struct rev_info *opt, struct commit *commit) | |
411 | { | |
412 | struct log_info log; | |
3eefc189 | 413 | int shown; |
91539833 LT |
414 | |
415 | log.commit = commit; | |
416 | log.parent = NULL; | |
417 | opt->loginfo = &log; | |
418 | ||
3eefc189 JH |
419 | shown = log_tree_diff(opt, commit, &log); |
420 | if (!shown && opt->loginfo && opt->always_show_header) { | |
91539833 | 421 | log.parent = NULL; |
39bc9a6c | 422 | show_log(opt, ""); |
3eefc189 | 423 | shown = 1; |
5f1c3f07 | 424 | } |
91539833 | 425 | opt->loginfo = NULL; |
06f59e9f | 426 | maybe_flush_or_die(stdout, "stdout"); |
3eefc189 | 427 | return shown; |
5f1c3f07 | 428 | } |