stagit.c - stagit - static git page generator
(HTM) git clone git://git.codemadness.org/stagit
(DIR) Log
(DIR) Files
(DIR) Refs
(DIR) README
(DIR) LICENSE
---
stagit.c (36246B)
---
1 #include <sys/stat.h>
2 #include <sys/types.h>
3
4 #include <err.h>
5 #include <errno.h>
6 #include <libgen.h>
7 #include <limits.h>
8 #include <stdint.h>
9 #include <stdio.h>
10 #include <stdlib.h>
11 #include <string.h>
12 #include <time.h>
13 #include <unistd.h>
14
15 #include <git2.h>
16
17 #include "compat.h"
18
19 #define LEN(s) (sizeof(s)/sizeof(*s))
20
21 struct deltainfo {
22 git_patch *patch;
23
24 size_t addcount;
25 size_t delcount;
26 };
27
28 struct commitinfo {
29 const git_oid *id;
30
31 char oid[GIT_OID_HEXSZ + 1];
32 char parentoid[GIT_OID_HEXSZ + 1];
33
34 const git_signature *author;
35 const git_signature *committer;
36 const char *summary;
37 const char *msg;
38
39 git_diff *diff;
40 git_commit *commit;
41 git_commit *parent;
42 git_tree *commit_tree;
43 git_tree *parent_tree;
44
45 size_t addcount;
46 size_t delcount;
47 size_t filecount;
48
49 struct deltainfo **deltas;
50 size_t ndeltas;
51 };
52
53 /* reference and associated data for sorting */
54 struct referenceinfo {
55 struct git_reference *ref;
56 struct commitinfo *ci;
57 };
58
59 static git_repository *repo;
60
61 static const char *baseurl = ""; /* base URL to make absolute RSS/Atom URI */
62 static const char *relpath = "";
63 static const char *repodir;
64
65 static char *name = "";
66 static char *strippedname = "";
67 static char description[255];
68 static char cloneurl[1024];
69 static char *submodules;
70 static char *licensefiles[] = { "HEAD:LICENSE", "HEAD:LICENSE.md", "HEAD:COPYING" };
71 static char *license;
72 static char *readmefiles[] = { "HEAD:README", "HEAD:README.md" };
73 static char *readme;
74 static long long nlogcommits = -1; /* -1 indicates not used */
75
76 /* cache */
77 static git_oid lastoid;
78 static char lastoidstr[GIT_OID_HEXSZ + 2]; /* id + newline + NUL byte */
79 static FILE *rcachefp, *wcachefp;
80 static const char *cachefile;
81
82 /* Handle read or write errors for a FILE * stream */
83 void
84 checkfileerror(FILE *fp, const char *name, int mode)
85 {
86 if (mode == 'r' && ferror(fp))
87 errx(1, "read error: %s", name);
88 else if (mode == 'w' && (fflush(fp) || ferror(fp)))
89 errx(1, "write error: %s", name);
90 }
91
92 void
93 joinpath(char *buf, size_t bufsiz, const char *path, const char *path2)
94 {
95 int r;
96
97 r = snprintf(buf, bufsiz, "%s%s%s",
98 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
99 if (r < 0 || (size_t)r >= bufsiz)
100 errx(1, "path truncated: '%s%s%s'",
101 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
102 }
103
104 void
105 deltainfo_free(struct deltainfo *di)
106 {
107 if (!di)
108 return;
109 git_patch_free(di->patch);
110 memset(di, 0, sizeof(*di));
111 free(di);
112 }
113
114 int
115 commitinfo_getstats(struct commitinfo *ci)
116 {
117 struct deltainfo *di;
118 git_diff_options opts;
119 git_diff_find_options fopts;
120 const git_diff_delta *delta;
121 const git_diff_hunk *hunk;
122 const git_diff_line *line;
123 git_patch *patch = NULL;
124 size_t ndeltas, nhunks, nhunklines;
125 size_t i, j, k;
126
127 if (git_tree_lookup(&(ci->commit_tree), repo, git_commit_tree_id(ci->commit)))
128 goto err;
129 if (!git_commit_parent(&(ci->parent), ci->commit, 0)) {
130 if (git_tree_lookup(&(ci->parent_tree), repo, git_commit_tree_id(ci->parent))) {
131 ci->parent = NULL;
132 ci->parent_tree = NULL;
133 }
134 }
135
136 git_diff_init_options(&opts, GIT_DIFF_OPTIONS_VERSION);
137 opts.flags |= GIT_DIFF_DISABLE_PATHSPEC_MATCH |
138 GIT_DIFF_IGNORE_SUBMODULES |
139 GIT_DIFF_INCLUDE_TYPECHANGE;
140 if (git_diff_tree_to_tree(&(ci->diff), repo, ci->parent_tree, ci->commit_tree, &opts))
141 goto err;
142
143 if (git_diff_find_init_options(&fopts, GIT_DIFF_FIND_OPTIONS_VERSION))
144 goto err;
145 /* find renames and copies, exact matches (no heuristic) for renames. */
146 fopts.flags |= GIT_DIFF_FIND_RENAMES | GIT_DIFF_FIND_COPIES |
147 GIT_DIFF_FIND_EXACT_MATCH_ONLY;
148 if (git_diff_find_similar(ci->diff, &fopts))
149 goto err;
150
151 ndeltas = git_diff_num_deltas(ci->diff);
152 if (ndeltas && !(ci->deltas = calloc(ndeltas, sizeof(struct deltainfo *))))
153 err(1, "calloc");
154
155 for (i = 0; i < ndeltas; i++) {
156 if (git_patch_from_diff(&patch, ci->diff, i))
157 goto err;
158
159 if (!(di = calloc(1, sizeof(struct deltainfo))))
160 err(1, "calloc");
161 di->patch = patch;
162 ci->deltas[i] = di;
163
164 delta = git_patch_get_delta(patch);
165
166 /* skip stats for binary data */
167 if (delta->flags & GIT_DIFF_FLAG_BINARY)
168 continue;
169
170 nhunks = git_patch_num_hunks(patch);
171 for (j = 0; j < nhunks; j++) {
172 if (git_patch_get_hunk(&hunk, &nhunklines, patch, j))
173 break;
174 for (k = 0; ; k++) {
175 if (git_patch_get_line_in_hunk(&line, patch, j, k))
176 break;
177 if (line->old_lineno == -1) {
178 di->addcount++;
179 ci->addcount++;
180 } else if (line->new_lineno == -1) {
181 di->delcount++;
182 ci->delcount++;
183 }
184 }
185 }
186 }
187 ci->ndeltas = i;
188 ci->filecount = i;
189
190 return 0;
191
192 err:
193 git_diff_free(ci->diff);
194 ci->diff = NULL;
195 git_tree_free(ci->commit_tree);
196 ci->commit_tree = NULL;
197 git_tree_free(ci->parent_tree);
198 ci->parent_tree = NULL;
199 git_commit_free(ci->parent);
200 ci->parent = NULL;
201
202 if (ci->deltas)
203 for (i = 0; i < ci->ndeltas; i++)
204 deltainfo_free(ci->deltas[i]);
205 free(ci->deltas);
206 ci->deltas = NULL;
207 ci->ndeltas = 0;
208 ci->addcount = 0;
209 ci->delcount = 0;
210 ci->filecount = 0;
211
212 return -1;
213 }
214
215 void
216 commitinfo_free(struct commitinfo *ci)
217 {
218 size_t i;
219
220 if (!ci)
221 return;
222 if (ci->deltas)
223 for (i = 0; i < ci->ndeltas; i++)
224 deltainfo_free(ci->deltas[i]);
225
226 free(ci->deltas);
227 git_diff_free(ci->diff);
228 git_tree_free(ci->commit_tree);
229 git_tree_free(ci->parent_tree);
230 git_commit_free(ci->commit);
231 git_commit_free(ci->parent);
232 memset(ci, 0, sizeof(*ci));
233 free(ci);
234 }
235
236 struct commitinfo *
237 commitinfo_getbyoid(const git_oid *id)
238 {
239 struct commitinfo *ci;
240
241 if (!(ci = calloc(1, sizeof(struct commitinfo))))
242 err(1, "calloc");
243
244 if (git_commit_lookup(&(ci->commit), repo, id))
245 goto err;
246 ci->id = id;
247
248 git_oid_tostr(ci->oid, sizeof(ci->oid), git_commit_id(ci->commit));
249 git_oid_tostr(ci->parentoid, sizeof(ci->parentoid), git_commit_parent_id(ci->commit, 0));
250
251 ci->author = git_commit_author(ci->commit);
252 ci->committer = git_commit_committer(ci->commit);
253 ci->summary = git_commit_summary(ci->commit);
254 ci->msg = git_commit_message(ci->commit);
255
256 return ci;
257
258 err:
259 commitinfo_free(ci);
260
261 return NULL;
262 }
263
264 int
265 refs_cmp(const void *v1, const void *v2)
266 {
267 const struct referenceinfo *r1 = v1, *r2 = v2;
268 time_t t1, t2;
269 int r;
270
271 if ((r = git_reference_is_tag(r1->ref) - git_reference_is_tag(r2->ref)))
272 return r;
273
274 t1 = r1->ci->author ? r1->ci->author->when.time : 0;
275 t2 = r2->ci->author ? r2->ci->author->when.time : 0;
276 if ((r = t1 > t2 ? -1 : (t1 == t2 ? 0 : 1)))
277 return r;
278
279 return strcmp(git_reference_shorthand(r1->ref),
280 git_reference_shorthand(r2->ref));
281 }
282
283 int
284 getrefs(struct referenceinfo **pris, size_t *prefcount)
285 {
286 struct referenceinfo *ris = NULL;
287 struct commitinfo *ci = NULL;
288 git_reference_iterator *it = NULL;
289 const git_oid *id = NULL;
290 git_object *obj = NULL;
291 git_reference *dref = NULL, *r, *ref = NULL;
292 size_t i, refcount;
293
294 *pris = NULL;
295 *prefcount = 0;
296
297 if (git_reference_iterator_new(&it, repo))
298 return -1;
299
300 for (refcount = 0; !git_reference_next(&ref, it); ) {
301 if (!git_reference_is_branch(ref) && !git_reference_is_tag(ref)) {
302 git_reference_free(ref);
303 ref = NULL;
304 continue;
305 }
306
307 switch (git_reference_type(ref)) {
308 case GIT_REF_SYMBOLIC:
309 if (git_reference_resolve(&dref, ref))
310 goto err;
311 r = dref;
312 break;
313 case GIT_REF_OID:
314 r = ref;
315 break;
316 default:
317 continue;
318 }
319 if (!git_reference_target(r) ||
320 git_reference_peel(&obj, r, GIT_OBJ_ANY))
321 goto err;
322 if (!(id = git_object_id(obj)))
323 goto err;
324 if (!(ci = commitinfo_getbyoid(id)))
325 break;
326
327 if (!(ris = reallocarray(ris, refcount + 1, sizeof(*ris))))
328 err(1, "realloc");
329 ris[refcount].ci = ci;
330 ris[refcount].ref = r;
331 refcount++;
332
333 git_object_free(obj);
334 obj = NULL;
335 git_reference_free(dref);
336 dref = NULL;
337 }
338 git_reference_iterator_free(it);
339
340 /* sort by type, date then shorthand name */
341 qsort(ris, refcount, sizeof(*ris), refs_cmp);
342
343 *pris = ris;
344 *prefcount = refcount;
345
346 return 0;
347
348 err:
349 git_object_free(obj);
350 git_reference_free(dref);
351 commitinfo_free(ci);
352 for (i = 0; i < refcount; i++) {
353 commitinfo_free(ris[i].ci);
354 git_reference_free(ris[i].ref);
355 }
356 free(ris);
357
358 return -1;
359 }
360
361 FILE *
362 efopen(const char *filename, const char *flags)
363 {
364 FILE *fp;
365
366 if (!(fp = fopen(filename, flags)))
367 err(1, "fopen: '%s'", filename);
368
369 return fp;
370 }
371
372 /* Percent-encode, see RFC3986 section 2.1. */
373 void
374 percentencode(FILE *fp, const char *s, size_t len)
375 {
376 static char tab[] = "0123456789ABCDEF";
377 unsigned char uc;
378 size_t i;
379
380 for (i = 0; *s && i < len; s++, i++) {
381 uc = *s;
382 /* NOTE: do not encode '/' for paths or ",-." */
383 if (uc < ',' || uc >= 127 || (uc >= ':' && uc <= '@') ||
384 uc == '[' || uc == ']') {
385 putc('%', fp);
386 putc(tab[(uc >> 4) & 0x0f], fp);
387 putc(tab[uc & 0x0f], fp);
388 } else {
389 putc(uc, fp);
390 }
391 }
392 }
393
394 /* Escape characters below as HTML 2.0 / XML 1.0. */
395 void
396 xmlencode(FILE *fp, const char *s, size_t len)
397 {
398 size_t i;
399
400 for (i = 0; *s && i < len; s++, i++) {
401 switch(*s) {
402 case '<': fputs("<", fp); break;
403 case '>': fputs(">", fp); break;
404 case '\'': fputs("'", fp); break;
405 case '&': fputs("&", fp); break;
406 case '"': fputs(""", fp); break;
407 default: putc(*s, fp);
408 }
409 }
410 }
411
412 /* Escape characters below as HTML 2.0 / XML 1.0, ignore printing '\r', '\n' */
413 void
414 xmlencodeline(FILE *fp, const char *s, size_t len)
415 {
416 size_t i;
417
418 for (i = 0; *s && i < len; s++, i++) {
419 switch(*s) {
420 case '<': fputs("<", fp); break;
421 case '>': fputs(">", fp); break;
422 case '\'': fputs("'", fp); break;
423 case '&': fputs("&", fp); break;
424 case '"': fputs(""", fp); break;
425 case '\r': break; /* ignore CR */
426 case '\n': break; /* ignore LF */
427 default: putc(*s, fp);
428 }
429 }
430 }
431
432 int
433 mkdirp(const char *path)
434 {
435 char tmp[PATH_MAX], *p;
436
437 if (strlcpy(tmp, path, sizeof(tmp)) >= sizeof(tmp))
438 errx(1, "path truncated: '%s'", path);
439 for (p = tmp + (tmp[0] == '/'); *p; p++) {
440 if (*p != '/')
441 continue;
442 *p = '\0';
443 if (mkdir(tmp, S_IRWXU | S_IRWXG | S_IRWXO) < 0 && errno != EEXIST)
444 return -1;
445 *p = '/';
446 }
447 if (mkdir(tmp, S_IRWXU | S_IRWXG | S_IRWXO) < 0 && errno != EEXIST)
448 return -1;
449 return 0;
450 }
451
452 void
453 printtimez(FILE *fp, const git_time *intime)
454 {
455 struct tm *intm;
456 time_t t;
457 char out[32];
458
459 t = (time_t)intime->time;
460 if (!(intm = gmtime(&t)))
461 return;
462 strftime(out, sizeof(out), "%Y-%m-%dT%H:%M:%SZ", intm);
463 fputs(out, fp);
464 }
465
466 void
467 printtime(FILE *fp, const git_time *intime)
468 {
469 struct tm *intm;
470 time_t t;
471 char out[32];
472
473 t = (time_t)intime->time + (intime->offset * 60);
474 if (!(intm = gmtime(&t)))
475 return;
476 strftime(out, sizeof(out), "%a, %e %b %Y %H:%M:%S", intm);
477 if (intime->offset < 0)
478 fprintf(fp, "%s -%02d%02d", out,
479 -(intime->offset) / 60, -(intime->offset) % 60);
480 else
481 fprintf(fp, "%s +%02d%02d", out,
482 intime->offset / 60, intime->offset % 60);
483 }
484
485 void
486 printtimeshort(FILE *fp, const git_time *intime)
487 {
488 struct tm *intm;
489 time_t t;
490 char out[32];
491
492 t = (time_t)intime->time;
493 if (!(intm = gmtime(&t)))
494 return;
495 strftime(out, sizeof(out), "%Y-%m-%d %H:%M", intm);
496 fputs(out, fp);
497 }
498
499 void
500 writeheader(FILE *fp, const char *title)
501 {
502 fputs("<!DOCTYPE html>\n"
503 "<html>\n<head>\n"
504 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
505 "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\" />\n"
506 "<title>", fp);
507 xmlencode(fp, title, strlen(title));
508 if (title[0] && strippedname[0])
509 fputs(" - ", fp);
510 xmlencode(fp, strippedname, strlen(strippedname));
511 if (description[0])
512 fputs(" - ", fp);
513 xmlencode(fp, description, strlen(description));
514 fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath);
515 fputs("<link rel=\"alternate\" type=\"application/atom+xml\" title=\"", fp);
516 xmlencode(fp, name, strlen(name));
517 fprintf(fp, " Atom Feed\" href=\"%satom.xml\" />\n", relpath);
518 fputs("<link rel=\"alternate\" type=\"application/atom+xml\" title=\"", fp);
519 xmlencode(fp, name, strlen(name));
520 fprintf(fp, " Atom Feed (tags)\" href=\"%stags.xml\" />\n", relpath);
521 fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath);
522 fputs("</head>\n<body>\n<table><tr><td>", fp);
523 fprintf(fp, "<a href=\"../%s\"><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></a>",
524 relpath, relpath);
525 fputs("</td><td><h1>", fp);
526 xmlencode(fp, strippedname, strlen(strippedname));
527 fputs("</h1><span class=\"desc\">", fp);
528 xmlencode(fp, description, strlen(description));
529 fputs("</span></td></tr>", fp);
530 if (cloneurl[0]) {
531 fputs("<tr class=\"url\"><td></td><td>git clone <a href=\"", fp);
532 xmlencode(fp, cloneurl, strlen(cloneurl)); /* not percent-encoded */
533 fputs("\">", fp);
534 xmlencode(fp, cloneurl, strlen(cloneurl));
535 fputs("</a></td></tr>", fp);
536 }
537 fputs("<tr><td></td><td>\n", fp);
538 fprintf(fp, "<a href=\"%slog.html\">Log</a> | ", relpath);
539 fprintf(fp, "<a href=\"%sfiles.html\">Files</a> | ", relpath);
540 fprintf(fp, "<a href=\"%srefs.html\">Refs</a>", relpath);
541 if (submodules)
542 fprintf(fp, " | <a href=\"%sfile/%s.html\">Submodules</a>",
543 relpath, submodules);
544 if (readme)
545 fprintf(fp, " | <a href=\"%sfile/%s.html\">README</a>",
546 relpath, readme);
547 if (license)
548 fprintf(fp, " | <a href=\"%sfile/%s.html\">LICENSE</a>",
549 relpath, license);
550 fputs("</td></tr></table>\n<hr/>\n<div id=\"content\">\n", fp);
551 }
552
553 void
554 writefooter(FILE *fp)
555 {
556 fputs("</div>\n</body>\n</html>\n", fp);
557 }
558
559 size_t
560 writeblobhtml(FILE *fp, const git_blob *blob)
561 {
562 size_t n = 0, i, len, prev;
563 const char *nfmt = "<a href=\"#l%zu\" class=\"line\" id=\"l%zu\">%7zu</a> ";
564 const char *s = git_blob_rawcontent(blob);
565
566 len = git_blob_rawsize(blob);
567 fputs("<pre id=\"blob\">\n", fp);
568
569 if (len > 0) {
570 for (i = 0, prev = 0; i < len; i++) {
571 if (s[i] != '\n')
572 continue;
573 n++;
574 fprintf(fp, nfmt, n, n, n);
575 xmlencodeline(fp, &s[prev], i - prev + 1);
576 putc('\n', fp);
577 prev = i + 1;
578 }
579 /* trailing data */
580 if ((len - prev) > 0) {
581 n++;
582 fprintf(fp, nfmt, n, n, n);
583 xmlencodeline(fp, &s[prev], len - prev);
584 }
585 }
586
587 fputs("</pre>\n", fp);
588
589 return n;
590 }
591
592 void
593 printcommit(FILE *fp, struct commitinfo *ci)
594 {
595 fprintf(fp, "<b>commit</b> <a href=\"%scommit/%s.html\">%s</a>\n",
596 relpath, ci->oid, ci->oid);
597
598 if (ci->parentoid[0])
599 fprintf(fp, "<b>parent</b> <a href=\"%scommit/%s.html\">%s</a>\n",
600 relpath, ci->parentoid, ci->parentoid);
601
602 if (ci->author) {
603 fputs("<b>Author:</b> ", fp);
604 xmlencode(fp, ci->author->name, strlen(ci->author->name));
605 fputs(" <<a href=\"mailto:", fp);
606 xmlencode(fp, ci->author->email, strlen(ci->author->email)); /* not percent-encoded */
607 fputs("\">", fp);
608 xmlencode(fp, ci->author->email, strlen(ci->author->email));
609 fputs("</a>>\n<b>Date:</b> ", fp);
610 printtime(fp, &(ci->author->when));
611 putc('\n', fp);
612 }
613 if (ci->msg) {
614 putc('\n', fp);
615 xmlencode(fp, ci->msg, strlen(ci->msg));
616 putc('\n', fp);
617 }
618 }
619
620 void
621 printshowfile(FILE *fp, struct commitinfo *ci)
622 {
623 const git_diff_delta *delta;
624 const git_diff_hunk *hunk;
625 const git_diff_line *line;
626 git_patch *patch;
627 size_t nhunks, nhunklines, changed, add, del, total, i, j, k;
628 char linestr[80];
629 int c;
630
631 printcommit(fp, ci);
632
633 if (!ci->deltas)
634 return;
635
636 if (ci->filecount > 1000 ||
637 ci->ndeltas > 1000 ||
638 ci->addcount > 100000 ||
639 ci->delcount > 100000) {
640 fputs("Diff is too large, output suppressed.\n", fp);
641 return;
642 }
643
644 /* diff stat */
645 fputs("<b>Diffstat:</b>\n<table>", fp);
646 for (i = 0; i < ci->ndeltas; i++) {
647 delta = git_patch_get_delta(ci->deltas[i]->patch);
648
649 switch (delta->status) {
650 case GIT_DELTA_ADDED: c = 'A'; break;
651 case GIT_DELTA_COPIED: c = 'C'; break;
652 case GIT_DELTA_DELETED: c = 'D'; break;
653 case GIT_DELTA_MODIFIED: c = 'M'; break;
654 case GIT_DELTA_RENAMED: c = 'R'; break;
655 case GIT_DELTA_TYPECHANGE: c = 'T'; break;
656 default: c = ' '; break;
657 }
658 if (c == ' ')
659 fprintf(fp, "<tr><td>%c", c);
660 else
661 fprintf(fp, "<tr><td class=\"%c\">%c", c, c);
662
663 fprintf(fp, "</td><td><a href=\"#h%zu\">", i);
664 xmlencode(fp, delta->old_file.path, strlen(delta->old_file.path));
665 if (strcmp(delta->old_file.path, delta->new_file.path)) {
666 fputs(" -> ", fp);
667 xmlencode(fp, delta->new_file.path, strlen(delta->new_file.path));
668 }
669
670 add = ci->deltas[i]->addcount;
671 del = ci->deltas[i]->delcount;
672 changed = add + del;
673 total = sizeof(linestr) - 2;
674 if (changed > total) {
675 if (add)
676 add = ((float)total / changed * add) + 1;
677 if (del)
678 del = ((float)total / changed * del) + 1;
679 }
680 memset(&linestr, '+', add);
681 memset(&linestr[add], '-', del);
682
683 fprintf(fp, "</a></td><td> | </td><td class=\"num\">%zu</td><td><span class=\"i\">",
684 ci->deltas[i]->addcount + ci->deltas[i]->delcount);
685 fwrite(&linestr, 1, add, fp);
686 fputs("</span><span class=\"d\">", fp);
687 fwrite(&linestr[add], 1, del, fp);
688 fputs("</span></td></tr>\n", fp);
689 }
690 fprintf(fp, "</table></pre><pre>%zu file%s changed, %zu insertion%s(+), %zu deletion%s(-)\n",
691 ci->filecount, ci->filecount == 1 ? "" : "s",
692 ci->addcount, ci->addcount == 1 ? "" : "s",
693 ci->delcount, ci->delcount == 1 ? "" : "s");
694
695 fputs("<hr/>", fp);
696
697 for (i = 0; i < ci->ndeltas; i++) {
698 patch = ci->deltas[i]->patch;
699 delta = git_patch_get_delta(patch);
700 fprintf(fp, "<b>diff --git a/<a id=\"h%zu\" href=\"%sfile/", i, relpath);
701 percentencode(fp, delta->old_file.path, strlen(delta->old_file.path));
702 fputs(".html\">", fp);
703 xmlencode(fp, delta->old_file.path, strlen(delta->old_file.path));
704 fprintf(fp, "</a> b/<a href=\"%sfile/", relpath);
705 percentencode(fp, delta->new_file.path, strlen(delta->new_file.path));
706 fprintf(fp, ".html\">");
707 xmlencode(fp, delta->new_file.path, strlen(delta->new_file.path));
708 fprintf(fp, "</a></b>\n");
709
710 /* check binary data */
711 if (delta->flags & GIT_DIFF_FLAG_BINARY) {
712 fputs("Binary files differ.\n", fp);
713 continue;
714 }
715
716 nhunks = git_patch_num_hunks(patch);
717 for (j = 0; j < nhunks; j++) {
718 if (git_patch_get_hunk(&hunk, &nhunklines, patch, j))
719 break;
720
721 fprintf(fp, "<a href=\"#h%zu-%zu\" id=\"h%zu-%zu\" class=\"h\">", i, j, i, j);
722 xmlencode(fp, hunk->header, hunk->header_len);
723 fputs("</a>", fp);
724
725 for (k = 0; ; k++) {
726 if (git_patch_get_line_in_hunk(&line, patch, j, k))
727 break;
728 if (line->old_lineno == -1)
729 fprintf(fp, "<a href=\"#h%zu-%zu-%zu\" id=\"h%zu-%zu-%zu\" class=\"i\">+",
730 i, j, k, i, j, k);
731 else if (line->new_lineno == -1)
732 fprintf(fp, "<a href=\"#h%zu-%zu-%zu\" id=\"h%zu-%zu-%zu\" class=\"d\">-",
733 i, j, k, i, j, k);
734 else
735 putc(' ', fp);
736 xmlencodeline(fp, line->content, line->content_len);
737 putc('\n', fp);
738 if (line->old_lineno == -1 || line->new_lineno == -1)
739 fputs("</a>", fp);
740 }
741 }
742 }
743 }
744
745 void
746 writelogline(FILE *fp, struct commitinfo *ci)
747 {
748 fputs("<tr><td>", fp);
749 if (ci->author)
750 printtimeshort(fp, &(ci->author->when));
751 fputs("</td><td>", fp);
752 if (ci->summary) {
753 fprintf(fp, "<a href=\"%scommit/%s.html\">", relpath, ci->oid);
754 xmlencode(fp, ci->summary, strlen(ci->summary));
755 fputs("</a>", fp);
756 }
757 fputs("</td><td>", fp);
758 if (ci->author)
759 xmlencode(fp, ci->author->name, strlen(ci->author->name));
760 fputs("</td><td class=\"num\" align=\"right\">", fp);
761 fprintf(fp, "%zu", ci->filecount);
762 fputs("</td><td class=\"num\" align=\"right\">", fp);
763 fprintf(fp, "+%zu", ci->addcount);
764 fputs("</td><td class=\"num\" align=\"right\">", fp);
765 fprintf(fp, "-%zu", ci->delcount);
766 fputs("</td></tr>\n", fp);
767 }
768
769 int
770 writelog(FILE *fp, const git_oid *oid)
771 {
772 struct commitinfo *ci;
773 git_revwalk *w = NULL;
774 git_oid id;
775 char path[PATH_MAX], oidstr[GIT_OID_HEXSZ + 1];
776 FILE *fpfile;
777 size_t remcommits = 0;
778 int r;
779
780 git_revwalk_new(&w, repo);
781 git_revwalk_push(w, oid);
782
783 while (!git_revwalk_next(&id, w)) {
784 relpath = "";
785
786 if (cachefile && !memcmp(&id, &lastoid, sizeof(id)))
787 break;
788
789 git_oid_tostr(oidstr, sizeof(oidstr), &id);
790 r = snprintf(path, sizeof(path), "commit/%s.html", oidstr);
791 if (r < 0 || (size_t)r >= sizeof(path))
792 errx(1, "path truncated: 'commit/%s.html'", oidstr);
793 r = access(path, F_OK);
794
795 /* optimization: if there are no log lines to write and
796 the commit file already exists: skip the diffstat */
797 if (!nlogcommits) {
798 remcommits++;
799 if (!r)
800 continue;
801 }
802
803 if (!(ci = commitinfo_getbyoid(&id)))
804 break;
805 /* diffstat: for stagit HTML required for the log.html line */
806 if (commitinfo_getstats(ci) == -1)
807 goto err;
808
809 if (nlogcommits != 0) {
810 writelogline(fp, ci);
811 if (nlogcommits > 0)
812 nlogcommits--;
813 }
814
815 if (cachefile)
816 writelogline(wcachefp, ci);
817
818 /* check if file exists if so skip it */
819 if (r) {
820 relpath = "../";
821 fpfile = efopen(path, "w");
822 writeheader(fpfile, ci->summary);
823 fputs("<pre>", fpfile);
824 printshowfile(fpfile, ci);
825 fputs("</pre>\n", fpfile);
826 writefooter(fpfile);
827 checkfileerror(fpfile, path, 'w');
828 fclose(fpfile);
829 }
830 err:
831 commitinfo_free(ci);
832 }
833 git_revwalk_free(w);
834
835 if (nlogcommits == 0 && remcommits != 0) {
836 fprintf(fp, "<tr><td></td><td colspan=\"5\">"
837 "%zu more commits remaining, fetch the repository"
838 "</td></tr>\n", remcommits);
839 }
840
841 relpath = "";
842
843 return 0;
844 }
845
846 void
847 printcommitatom(FILE *fp, struct commitinfo *ci, const char *tag)
848 {
849 fputs("<entry>\n", fp);
850
851 fprintf(fp, "<id>%s</id>\n", ci->oid);
852 if (ci->author) {
853 fputs("<published>", fp);
854 printtimez(fp, &(ci->author->when));
855 fputs("</published>\n", fp);
856 }
857 if (ci->committer) {
858 fputs("<updated>", fp);
859 printtimez(fp, &(ci->committer->when));
860 fputs("</updated>\n", fp);
861 }
862 if (ci->summary) {
863 fputs("<title>", fp);
864 if (tag && tag[0]) {
865 fputs("[", fp);
866 xmlencode(fp, tag, strlen(tag));
867 fputs("] ", fp);
868 }
869 xmlencode(fp, ci->summary, strlen(ci->summary));
870 fputs("</title>\n", fp);
871 }
872 fprintf(fp, "<link rel=\"alternate\" type=\"text/html\" href=\"%scommit/%s.html\" />\n",
873 baseurl, ci->oid);
874
875 if (ci->author) {
876 fputs("<author>\n<name>", fp);
877 xmlencode(fp, ci->author->name, strlen(ci->author->name));
878 fputs("</name>\n<email>", fp);
879 xmlencode(fp, ci->author->email, strlen(ci->author->email));
880 fputs("</email>\n</author>\n", fp);
881 }
882
883 fputs("<content>", fp);
884 fprintf(fp, "commit %s\n", ci->oid);
885 if (ci->parentoid[0])
886 fprintf(fp, "parent %s\n", ci->parentoid);
887 if (ci->author) {
888 fputs("Author: ", fp);
889 xmlencode(fp, ci->author->name, strlen(ci->author->name));
890 fputs(" <", fp);
891 xmlencode(fp, ci->author->email, strlen(ci->author->email));
892 fputs(">\nDate: ", fp);
893 printtime(fp, &(ci->author->when));
894 putc('\n', fp);
895 }
896 if (ci->msg) {
897 putc('\n', fp);
898 xmlencode(fp, ci->msg, strlen(ci->msg));
899 }
900 fputs("\n</content>\n</entry>\n", fp);
901 }
902
903 int
904 writeatom(FILE *fp, int all)
905 {
906 struct referenceinfo *ris = NULL;
907 size_t refcount = 0;
908 struct commitinfo *ci;
909 git_revwalk *w = NULL;
910 git_oid id;
911 size_t i, m = 100; /* last 'm' commits */
912
913 fputs("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
914 "<feed xmlns=\"http://www.w3.org/2005/Atom\">\n<title>", fp);
915 xmlencode(fp, strippedname, strlen(strippedname));
916 fputs(", branch HEAD</title>\n<subtitle>", fp);
917 xmlencode(fp, description, strlen(description));
918 fputs("</subtitle>\n", fp);
919
920 /* all commits or only tags? */
921 if (all) {
922 git_revwalk_new(&w, repo);
923 git_revwalk_push_head(w);
924 for (i = 0; i < m && !git_revwalk_next(&id, w); i++) {
925 if (!(ci = commitinfo_getbyoid(&id)))
926 break;
927 printcommitatom(fp, ci, "");
928 commitinfo_free(ci);
929 }
930 git_revwalk_free(w);
931 } else if (getrefs(&ris, &refcount) != -1) {
932 /* references: tags */
933 for (i = 0; i < refcount; i++) {
934 if (git_reference_is_tag(ris[i].ref))
935 printcommitatom(fp, ris[i].ci,
936 git_reference_shorthand(ris[i].ref));
937
938 commitinfo_free(ris[i].ci);
939 git_reference_free(ris[i].ref);
940 }
941 free(ris);
942 }
943
944 fputs("</feed>\n", fp);
945
946 return 0;
947 }
948
949 size_t
950 writeblob(git_object *obj, const char *fpath, const char *filename, size_t filesize)
951 {
952 char tmp[PATH_MAX] = "", *d;
953 const char *p;
954 size_t lc = 0;
955 FILE *fp;
956
957 if (strlcpy(tmp, fpath, sizeof(tmp)) >= sizeof(tmp))
958 errx(1, "path truncated: '%s'", fpath);
959 if (!(d = dirname(tmp)))
960 err(1, "dirname");
961 if (mkdirp(d))
962 return -1;
963
964 for (p = fpath, tmp[0] = '\0'; *p; p++) {
965 if (*p == '/' && strlcat(tmp, "../", sizeof(tmp)) >= sizeof(tmp))
966 errx(1, "path truncated: '../%s'", tmp);
967 }
968 relpath = tmp;
969
970 fp = efopen(fpath, "w");
971 writeheader(fp, filename);
972 fputs("<p> ", fp);
973 xmlencode(fp, filename, strlen(filename));
974 fprintf(fp, " (%zuB)", filesize);
975 fputs("</p><hr/>", fp);
976
977 if (git_blob_is_binary((git_blob *)obj))
978 fputs("<p>Binary file.</p>\n", fp);
979 else
980 lc = writeblobhtml(fp, (git_blob *)obj);
981
982 writefooter(fp);
983 checkfileerror(fp, fpath, 'w');
984 fclose(fp);
985
986 relpath = "";
987
988 return lc;
989 }
990
991 const char *
992 filemode(git_filemode_t m)
993 {
994 static char mode[11];
995
996 memset(mode, '-', sizeof(mode) - 1);
997 mode[10] = '\0';
998
999 if (S_ISREG(m))
1000 mode[0] = '-';
1001 else if (S_ISBLK(m))
1002 mode[0] = 'b';
1003 else if (S_ISCHR(m))
1004 mode[0] = 'c';
1005 else if (S_ISDIR(m))
1006 mode[0] = 'd';
1007 else if (S_ISFIFO(m))
1008 mode[0] = 'p';
1009 else if (S_ISLNK(m))
1010 mode[0] = 'l';
1011 else if (S_ISSOCK(m))
1012 mode[0] = 's';
1013 else
1014 mode[0] = '?';
1015
1016 if (m & S_IRUSR) mode[1] = 'r';
1017 if (m & S_IWUSR) mode[2] = 'w';
1018 if (m & S_IXUSR) mode[3] = 'x';
1019 if (m & S_IRGRP) mode[4] = 'r';
1020 if (m & S_IWGRP) mode[5] = 'w';
1021 if (m & S_IXGRP) mode[6] = 'x';
1022 if (m & S_IROTH) mode[7] = 'r';
1023 if (m & S_IWOTH) mode[8] = 'w';
1024 if (m & S_IXOTH) mode[9] = 'x';
1025
1026 if (m & S_ISUID) mode[3] = (mode[3] == 'x') ? 's' : 'S';
1027 if (m & S_ISGID) mode[6] = (mode[6] == 'x') ? 's' : 'S';
1028 if (m & S_ISVTX) mode[9] = (mode[9] == 'x') ? 't' : 'T';
1029
1030 return mode;
1031 }
1032
1033 int
1034 writefilestree(FILE *fp, git_tree *tree, const char *path)
1035 {
1036 const git_tree_entry *entry = NULL;
1037 git_object *obj = NULL;
1038 const char *entryname;
1039 char filepath[PATH_MAX], entrypath[PATH_MAX], oid[8];
1040 size_t count, i, lc, filesize;
1041 int r, ret;
1042
1043 count = git_tree_entrycount(tree);
1044 for (i = 0; i < count; i++) {
1045 if (!(entry = git_tree_entry_byindex(tree, i)) ||
1046 !(entryname = git_tree_entry_name(entry)))
1047 return -1;
1048 joinpath(entrypath, sizeof(entrypath), path, entryname);
1049
1050 r = snprintf(filepath, sizeof(filepath), "file/%s.html",
1051 entrypath);
1052 if (r < 0 || (size_t)r >= sizeof(filepath))
1053 errx(1, "path truncated: 'file/%s.html'", entrypath);
1054
1055 if (!git_tree_entry_to_object(&obj, repo, entry)) {
1056 switch (git_object_type(obj)) {
1057 case GIT_OBJ_BLOB:
1058 break;
1059 case GIT_OBJ_TREE:
1060 /* NOTE: recurses */
1061 ret = writefilestree(fp, (git_tree *)obj,
1062 entrypath);
1063 git_object_free(obj);
1064 if (ret)
1065 return ret;
1066 continue;
1067 default:
1068 git_object_free(obj);
1069 continue;
1070 }
1071
1072 filesize = git_blob_rawsize((git_blob *)obj);
1073 lc = writeblob(obj, filepath, entryname, filesize);
1074
1075 fputs("<tr><td>", fp);
1076 fputs(filemode(git_tree_entry_filemode(entry)), fp);
1077 fprintf(fp, "</td><td><a href=\"%s", relpath);
1078 percentencode(fp, filepath, strlen(filepath));
1079 fputs("\">", fp);
1080 xmlencode(fp, entrypath, strlen(entrypath));
1081 fputs("</a></td><td class=\"num\" align=\"right\">", fp);
1082 if (lc > 0)
1083 fprintf(fp, "%zuL", lc);
1084 else
1085 fprintf(fp, "%zuB", filesize);
1086 fputs("</td></tr>\n", fp);
1087 git_object_free(obj);
1088 } else if (git_tree_entry_type(entry) == GIT_OBJ_COMMIT) {
1089 /* commit object in tree is a submodule */
1090 fprintf(fp, "<tr><td>m---------</td><td><a href=\"%sfile/.gitmodules.html\">",
1091 relpath);
1092 xmlencode(fp, entrypath, strlen(entrypath));
1093 fputs("</a> @ ", fp);
1094 git_oid_tostr(oid, sizeof(oid), git_tree_entry_id(entry));
1095 xmlencode(fp, oid, strlen(oid));
1096 fputs("</td><td class=\"num\" align=\"right\"></td></tr>\n", fp);
1097 }
1098 }
1099
1100 return 0;
1101 }
1102
1103 int
1104 writefiles(FILE *fp, const git_oid *id)
1105 {
1106 git_tree *tree = NULL;
1107 git_commit *commit = NULL;
1108 int ret = -1;
1109
1110 fputs("<table id=\"files\"><thead>\n<tr>"
1111 "<td><b>Mode</b></td><td><b>Name</b></td>"
1112 "<td class=\"num\" align=\"right\"><b>Size</b></td>"
1113 "</tr>\n</thead><tbody>\n", fp);
1114
1115 if (!git_commit_lookup(&commit, repo, id) &&
1116 !git_commit_tree(&tree, commit))
1117 ret = writefilestree(fp, tree, "");
1118
1119 fputs("</tbody></table>", fp);
1120
1121 git_commit_free(commit);
1122 git_tree_free(tree);
1123
1124 return ret;
1125 }
1126
1127 int
1128 writerefs(FILE *fp)
1129 {
1130 struct referenceinfo *ris = NULL;
1131 struct commitinfo *ci;
1132 size_t count, i, j, refcount;
1133 const char *titles[] = { "Branches", "Tags" };
1134 const char *ids[] = { "branches", "tags" };
1135 const char *s;
1136
1137 if (getrefs(&ris, &refcount) == -1)
1138 return -1;
1139
1140 for (i = 0, j = 0, count = 0; i < refcount; i++) {
1141 if (j == 0 && git_reference_is_tag(ris[i].ref)) {
1142 if (count)
1143 fputs("</tbody></table><br/>\n", fp);
1144 count = 0;
1145 j = 1;
1146 }
1147
1148 /* print header if it has an entry (first). */
1149 if (++count == 1) {
1150 fprintf(fp, "<h2>%s</h2><table id=\"%s\">"
1151 "<thead>\n<tr><td><b>Name</b></td>"
1152 "<td><b>Last commit date</b></td>"
1153 "<td><b>Author</b></td>\n</tr>\n"
1154 "</thead><tbody>\n",
1155 titles[j], ids[j]);
1156 }
1157
1158 ci = ris[i].ci;
1159 s = git_reference_shorthand(ris[i].ref);
1160
1161 fputs("<tr><td>", fp);
1162 xmlencode(fp, s, strlen(s));
1163 fputs("</td><td>", fp);
1164 if (ci->author)
1165 printtimeshort(fp, &(ci->author->when));
1166 fputs("</td><td>", fp);
1167 if (ci->author)
1168 xmlencode(fp, ci->author->name, strlen(ci->author->name));
1169 fputs("</td></tr>\n", fp);
1170 }
1171 /* table footer */
1172 if (count)
1173 fputs("</tbody></table><br/>\n", fp);
1174
1175 for (i = 0; i < refcount; i++) {
1176 commitinfo_free(ris[i].ci);
1177 git_reference_free(ris[i].ref);
1178 }
1179 free(ris);
1180
1181 return 0;
1182 }
1183
1184 void
1185 usage(char *argv0)
1186 {
1187 fprintf(stderr, "usage: %s [-c cachefile | -l commits] "
1188 "[-u baseurl] repodir\n", argv0);
1189 exit(1);
1190 }
1191
1192 int
1193 main(int argc, char *argv[])
1194 {
1195 git_object *obj = NULL;
1196 const git_oid *head = NULL;
1197 mode_t mask;
1198 FILE *fp, *fpread;
1199 char path[PATH_MAX], repodirabs[PATH_MAX + 1], *p;
1200 char tmppath[64] = "cache.XXXXXXXXXXXX", buf[BUFSIZ];
1201 size_t n;
1202 int i, fd;
1203
1204 for (i = 1; i < argc; i++) {
1205 if (argv[i][0] != '-') {
1206 if (repodir)
1207 usage(argv[0]);
1208 repodir = argv[i];
1209 } else if (argv[i][1] == 'c') {
1210 if (nlogcommits > 0 || i + 1 >= argc)
1211 usage(argv[0]);
1212 cachefile = argv[++i];
1213 } else if (argv[i][1] == 'l') {
1214 if (cachefile || i + 1 >= argc)
1215 usage(argv[0]);
1216 errno = 0;
1217 nlogcommits = strtoll(argv[++i], &p, 10);
1218 if (argv[i][0] == '\0' || *p != '\0' ||
1219 nlogcommits <= 0 || errno)
1220 usage(argv[0]);
1221 } else if (argv[i][1] == 'u') {
1222 if (i + 1 >= argc)
1223 usage(argv[0]);
1224 baseurl = argv[++i];
1225 }
1226 }
1227 if (!repodir)
1228 usage(argv[0]);
1229
1230 if (!realpath(repodir, repodirabs))
1231 err(1, "realpath");
1232
1233 /* do not search outside the git repository:
1234 GIT_CONFIG_LEVEL_APP is the highest level currently */
1235 git_libgit2_init();
1236 for (i = 1; i <= GIT_CONFIG_LEVEL_APP; i++)
1237 git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, i, "");
1238 /* do not require the git repository to be owned by the current user */
1239 git_libgit2_opts(GIT_OPT_SET_OWNER_VALIDATION, 0);
1240
1241 #ifdef __OpenBSD__
1242 if (unveil(repodir, "r") == -1)
1243 err(1, "unveil: %s", repodir);
1244 if (unveil(".", "rwc") == -1)
1245 err(1, "unveil: .");
1246 if (cachefile && unveil(cachefile, "rwc") == -1)
1247 err(1, "unveil: %s", cachefile);
1248
1249 if (cachefile) {
1250 if (pledge("stdio rpath wpath cpath fattr", NULL) == -1)
1251 err(1, "pledge");
1252 } else {
1253 if (pledge("stdio rpath wpath cpath", NULL) == -1)
1254 err(1, "pledge");
1255 }
1256 #endif
1257
1258 if (git_repository_open_ext(&repo, repodir,
1259 GIT_REPOSITORY_OPEN_NO_SEARCH, NULL) < 0) {
1260 fprintf(stderr, "%s: cannot open repository\n", argv[0]);
1261 return 1;
1262 }
1263
1264 /* find HEAD */
1265 if (!git_revparse_single(&obj, repo, "HEAD"))
1266 head = git_object_id(obj);
1267 git_object_free(obj);
1268
1269 /* use directory name as name */
1270 if ((name = strrchr(repodirabs, '/')))
1271 name++;
1272 else
1273 name = "";
1274
1275 /* strip .git suffix */
1276 if (!(strippedname = strdup(name)))
1277 err(1, "strdup");
1278 if ((p = strrchr(strippedname, '.')))
1279 if (!strcmp(p, ".git"))
1280 *p = '\0';
1281
1282 /* read description or .git/description */
1283 joinpath(path, sizeof(path), repodir, "description");
1284 if (!(fpread = fopen(path, "r"))) {
1285 joinpath(path, sizeof(path), repodir, ".git/description");
1286 fpread = fopen(path, "r");
1287 }
1288 if (fpread) {
1289 if (!fgets(description, sizeof(description), fpread))
1290 description[0] = '\0';
1291 checkfileerror(fpread, path, 'r');
1292 fclose(fpread);
1293 }
1294
1295 /* read url or .git/url */
1296 joinpath(path, sizeof(path), repodir, "url");
1297 if (!(fpread = fopen(path, "r"))) {
1298 joinpath(path, sizeof(path), repodir, ".git/url");
1299 fpread = fopen(path, "r");
1300 }
1301 if (fpread) {
1302 if (!fgets(cloneurl, sizeof(cloneurl), fpread))
1303 cloneurl[0] = '\0';
1304 checkfileerror(fpread, path, 'r');
1305 fclose(fpread);
1306 cloneurl[strcspn(cloneurl, "\n")] = '\0';
1307 }
1308
1309 /* check LICENSE */
1310 for (i = 0; i < LEN(licensefiles) && !license; i++) {
1311 if (!git_revparse_single(&obj, repo, licensefiles[i]) &&
1312 git_object_type(obj) == GIT_OBJ_BLOB)
1313 license = licensefiles[i] + strlen("HEAD:");
1314 git_object_free(obj);
1315 }
1316
1317 /* check README */
1318 for (i = 0; i < LEN(readmefiles) && !readme; i++) {
1319 if (!git_revparse_single(&obj, repo, readmefiles[i]) &&
1320 git_object_type(obj) == GIT_OBJ_BLOB)
1321 readme = readmefiles[i] + strlen("HEAD:");
1322 git_object_free(obj);
1323 }
1324
1325 if (!git_revparse_single(&obj, repo, "HEAD:.gitmodules") &&
1326 git_object_type(obj) == GIT_OBJ_BLOB)
1327 submodules = ".gitmodules";
1328 git_object_free(obj);
1329
1330 /* log for HEAD */
1331 fp = efopen("log.html", "w");
1332 relpath = "";
1333 mkdir("commit", S_IRWXU | S_IRWXG | S_IRWXO);
1334 writeheader(fp, "Log");
1335 fputs("<table id=\"log\"><thead>\n<tr><td><b>Date</b></td>"
1336 "<td><b>Commit message</b></td>"
1337 "<td><b>Author</b></td><td class=\"num\" align=\"right\"><b>Files</b></td>"
1338 "<td class=\"num\" align=\"right\"><b>+</b></td>"
1339 "<td class=\"num\" align=\"right\"><b>-</b></td></tr>\n</thead><tbody>\n", fp);
1340
1341 if (cachefile && head) {
1342 /* read from cache file (does not need to exist) */
1343 if ((rcachefp = fopen(cachefile, "r"))) {
1344 if (!fgets(lastoidstr, sizeof(lastoidstr), rcachefp))
1345 errx(1, "%s: no object id", cachefile);
1346 if (git_oid_fromstr(&lastoid, lastoidstr))
1347 errx(1, "%s: invalid object id", cachefile);
1348 }
1349
1350 /* write log to (temporary) cache */
1351 if ((fd = mkstemp(tmppath)) == -1)
1352 err(1, "mkstemp");
1353 if (!(wcachefp = fdopen(fd, "w")))
1354 err(1, "fdopen: '%s'", tmppath);
1355 /* write last commit id (HEAD) */
1356 git_oid_tostr(buf, sizeof(buf), head);
1357 fprintf(wcachefp, "%s\n", buf);
1358
1359 writelog(fp, head);
1360
1361 if (rcachefp) {
1362 /* append previous log to log.html and the new cache */
1363 while (!feof(rcachefp)) {
1364 n = fread(buf, 1, sizeof(buf), rcachefp);
1365 if (ferror(rcachefp))
1366 break;
1367 if (fwrite(buf, 1, n, fp) != n ||
1368 fwrite(buf, 1, n, wcachefp) != n)
1369 break;
1370 }
1371 checkfileerror(rcachefp, cachefile, 'r');
1372 fclose(rcachefp);
1373 }
1374 checkfileerror(wcachefp, tmppath, 'w');
1375 fclose(wcachefp);
1376 } else {
1377 if (head)
1378 writelog(fp, head);
1379 }
1380
1381 fputs("</tbody></table>", fp);
1382 writefooter(fp);
1383 checkfileerror(fp, "log.html", 'w');
1384 fclose(fp);
1385
1386 /* files for HEAD */
1387 fp = efopen("files.html", "w");
1388 writeheader(fp, "Files");
1389 if (head)
1390 writefiles(fp, head);
1391 writefooter(fp);
1392 checkfileerror(fp, "files.html", 'w');
1393 fclose(fp);
1394
1395 /* summary page with branches and tags */
1396 fp = efopen("refs.html", "w");
1397 writeheader(fp, "Refs");
1398 writerefs(fp);
1399 writefooter(fp);
1400 checkfileerror(fp, "refs.html", 'w');
1401 fclose(fp);
1402
1403 /* Atom feed */
1404 fp = efopen("atom.xml", "w");
1405 writeatom(fp, 1);
1406 checkfileerror(fp, "atom.xml", 'w');
1407 fclose(fp);
1408
1409 /* Atom feed for tags / releases */
1410 fp = efopen("tags.xml", "w");
1411 writeatom(fp, 0);
1412 checkfileerror(fp, "tags.xml", 'w');
1413 fclose(fp);
1414
1415 /* rename new cache file on success */
1416 if (cachefile && head) {
1417 if (rename(tmppath, cachefile))
1418 err(1, "rename: '%s' to '%s'", tmppath, cachefile);
1419 umask((mask = umask(0)));
1420 if (chmod(cachefile,
1421 (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) & ~mask))
1422 err(1, "chmod: '%s'", cachefile);
1423 }
1424
1425 /* cleanup */
1426 git_repository_free(repo);
1427 git_libgit2_shutdown();
1428
1429 return 0;
1430 }