urmoms.c

   1 #include <sys/stat.h>
   2
   3 #include <err.h>
   4 #include <errno.h>
   5 #include <inttypes.h>
   6 #include <libgen.h>
   7 #include <limits.h>
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <unistd.h>
  12
  13 #include <git2.h>
  14
  15 #include "compat.h"
  16 #include "config.h"
  17
  18 struct commitinfo {
  19         const git_oid *id;
  20
  21         char oid[GIT_OID_HEXSZ + 1];
  22         char parentoid[GIT_OID_HEXSZ + 1];
  23
  24         const git_signature *author;
  25         const char *summary;
  26         const char *msg;
  27
  28         git_diff_stats *stats;
  29         git_diff       *diff;
  30         git_commit     *commit;
  31         git_commit     *parent;
  32         git_tree       *commit_tree;
  33         git_tree       *parent_tree;
  34
  35         size_t addcount;
  36         size_t delcount;
  37         size_t filecount;
  38 };
  39
  40 static git_repository *repo;
  41
  42 static const char *relpath = "";
  43 static const char *repodir;
  44
  45 static char name[255];
  46 static char description[255];
  47 static char cloneurl[1024];
  48 static int hasreadme, haslicense;
  49
  50 void
  51 commitinfo_free(struct commitinfo *ci)
  52 {
  53         if (!ci)
  54                 return;
  55
  56         git_diff_stats_free(ci->stats);
  57         git_diff_free(ci->diff);
  58         git_tree_free(ci->commit_tree);
  59         git_tree_free(ci->parent_tree);
  60         git_commit_free(ci->commit);
  61 }
  62
  63 struct commitinfo *
  64 commitinfo_getbyoid(const git_oid *id)
  65 {
  66         struct commitinfo *ci;
  67         git_diff_options opts;
  68         int error;
  69
  70         if (!(ci = calloc(1, sizeof(struct commitinfo))))
  71                 err(1, "calloc");
  72
  73         ci->id = id;
  74         if (git_commit_lookup(&(ci->commit), repo, id))
  75                 goto err;
  76
  77         git_oid_tostr(ci->oid, sizeof(ci->oid), git_commit_id(ci->commit));
  78         git_oid_tostr(ci->parentoid, sizeof(ci->parentoid), git_commit_parent_id(ci->commit, 0));
  79
  80         ci->author = git_commit_author(ci->commit);
  81         ci->summary = git_commit_summary(ci->commit);
  82         ci->msg = git_commit_message(ci->commit);
  83
  84         if ((error = git_commit_tree(&(ci->commit_tree), ci->commit)))
  85                 goto err;
  86         if (!(error = git_commit_parent(&(ci->parent), ci->commit, 0))) {
  87                 if ((error = git_commit_tree(&(ci->parent_tree), ci->parent)))
  88                         goto err;
  89         } else {
  90                 ci->parent = NULL;
  91                 ci->parent_tree = NULL;
  92         }
  93
  94         git_diff_init_options(&opts, GIT_DIFF_OPTIONS_VERSION);
  95         opts.flags |= GIT_DIFF_DISABLE_PATHSPEC_MATCH;
  96         if ((error = git_diff_tree_to_tree(&(ci->diff), repo, ci->parent_tree, ci->commit_tree, &opts)))
  97                 goto err;
  98         if (git_diff_get_stats(&(ci->stats), ci->diff))
  99                 goto err;
 100
 101         ci->addcount = git_diff_stats_insertions(ci->stats);
 102         ci->delcount = git_diff_stats_deletions(ci->stats);
 103         ci->filecount = git_diff_stats_files_changed(ci->stats);
 104
 105         return ci;
 106
 107 err:
 108         commitinfo_free(ci);
 109         free(ci);
 110
 111         return NULL;
 112 }
 113
 114 FILE *
 115 efopen(const char *name, const char *flags)
 116 {
 117         FILE *fp;
 118
 119         if (!(fp = fopen(name, flags)))
 120                 err(1, "fopen");
 121
 122         return fp;
 123 }
 124
 125 /* Escape characters below as HTML 2.0 / XML 1.0. */
 126 void
 127 xmlencode(FILE *fp, const char *s, size_t len)
 128 {
 129         size_t i;
 130
 131         for (i = 0; *s && i < len; s++, i++) {
 132                 switch(*s) {
 133                 case '<':  fputs("&lt;",   fp); break;
 134                 case '>':  fputs("&gt;",   fp); break;
 135                 case '\'': fputs("&apos;", fp); break;
 136                 case '&':  fputs("&amp;",  fp); break;
 137                 case '"':  fputs("&quot;", fp); break;
 138                 default:   fputc(*s, fp);
 139                 }
 140         }
 141 }
 142
 143 /* Some implementations of dirname(3) return a pointer to a static
 144  * internal buffer (OpenBSD). Others modify the contents of `path` (POSIX).
 145  * This is a wrapper function that is compatible with both versions.
 146  * The program will error out if dirname(3) failed, this can only happen
 147  * with the OpenBSD version. */
 148 char *
 149 xdirname(const char *path)
 150 {
 151         char *p, *b;
 152
 153         if (!(p = strdup(path)))
 154                 err(1, "strdup");
 155         if (!(b = dirname(p)))
 156                 err(1, "basename");
 157         if (!(b = strdup(b)))
 158                 err(1, "strdup");
 159         free(p);
 160
 161         return b;
 162 }
 163
 164 /* Some implementations of basename(3) return a pointer to a static
 165  * internal buffer (OpenBSD). Others modify the contents of `path` (POSIX).
 166  * This is a wrapper function that is compatible with both versions.
 167  * The program will error out if basename(3) failed, this can only happen
 168  * with the OpenBSD version. */
 169 char *
 170 xbasename(const char *path)
 171 {
 172         char *p, *b;
 173
 174         if (!(p = strdup(path)))
 175                 err(1, "strdup");
 176         if (!(b = basename(p)))
 177                 err(1, "basename");
 178         if (!(b = strdup(b)))
 179                 err(1, "strdup");
 180         free(p);
 181
 182         return b;
 183 }
 184
 185 int
 186 mkdirp(const char *path)
 187 {
 188         char tmp[PATH_MAX], *p;
 189
 190         strlcpy(tmp, path, sizeof(tmp));
 191         for (p = tmp + (tmp[0] == '/'); *p; p++) {
 192                 if (*p != '/')
 193                         continue;
 194                 *p = '\0';
 195                 if (mkdir(tmp, S_IRWXU | S_IRWXG | S_IRWXO) < 0 && errno != EEXIST)
 196                         return -1;
 197                 *p = '/';
 198         }
 199         if (mkdir(tmp, S_IRWXU | S_IRWXG | S_IRWXO) < 0 && errno != EEXIST)
 200                 return -1;
 201         return 0;
 202 }
 203
 204 void
 205 printtimeformat(FILE *fp, const git_time *intime, const char *fmt)
 206 {
 207         struct tm *intm;
 208         time_t t;
 209         char out[32];
 210
 211         t = (time_t) intime->time + (intime->offset * 60);
 212         intm = gmtime(&t);
 213         strftime(out, sizeof(out), fmt, intm);
 214         fputs(out, fp);
 215 }
 216
 217 void
 218 printtimez(FILE *fp, const git_time *intime)
 219 {
 220         printtimeformat(fp, intime, "%Y-%m-%dT%H:%M:%SZ");
 221 }
 222
 223 void
 224 printtime(FILE *fp, const git_time *intime)
 225 {
 226         printtimeformat(fp, intime, "%a %b %e %T %Y");
 227 }
 228
 229 void
 230 printtimeshort(FILE *fp, const git_time *intime)
 231 {
 232         printtimeformat(fp, intime, "%Y-%m-%d %H:%M");
 233 }
 234
 235 int
 236 writeheader(FILE *fp)
 237 {
 238         fputs("<!DOCTYPE HTML>"
 239                 "<html dir=\"ltr\" lang=\"en\">\n<head>\n"
 240                 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
 241                 "<meta http-equiv=\"Content-Language\" content=\"en\" />\n<title>", fp);
 242         xmlencode(fp, name, strlen(name));
 243         if (description[0])
 244                 fputs(" - ", fp);
 245         xmlencode(fp, description, strlen(description));
 246         fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath);
 247         fprintf(fp, "<link rel=\"alternate\" type=\"application/atom+xml\" title=\"%s Atom Feed\" href=\"%satom.xml\" />\n",
 248                 name, relpath);
 249         fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath);
 250         fputs("</head>\n<body>\n<table><tr><td>", fp);
 251         fprintf(fp, "<a href=\"../%s\"><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></a>",
 252                 relpath, relpath);
 253         fputs("</td><td><h1>", fp);
 254         xmlencode(fp, name, strlen(name));
 255         fputs("</h1><span class=\"desc\">", fp);
 256         xmlencode(fp, description, strlen(description));
 257         fputs("</span></td></tr>", fp);
 258         if (cloneurl[0]) {
 259                 fputs("<tr class=\"url\"><td></td><td>git clone <a href=\"", fp);
 260                 xmlencode(fp, cloneurl, strlen(cloneurl));
 261                 fputs("\">", fp);
 262                 xmlencode(fp, cloneurl, strlen(cloneurl));
 263                 fputs("</a></td></tr>", fp);
 264         }
 265         fputs("<tr><td></td><td>\n", fp);
 266         fprintf(fp, "<a href=\"%slog.html\">Log</a> | ", relpath);
 267         fprintf(fp, "<a href=\"%sfiles.html\">Files</a>", relpath);
 268         if (hasreadme)
 269                 fprintf(fp, " | <a href=\"%sfile/README.html\">README</a>", relpath);
 270         if (haslicense)
 271                 fprintf(fp, " | <a href=\"%sfile/LICENSE.html\">LICENSE</a>", relpath);
 272         fputs("</td></tr></table>\n<hr/><div id=\"content\">\n", fp);
 273
 274         return 0;
 275 }
 276
 277 int
 278 writefooter(FILE *fp)
 279 {
 280         return !fputs("</div></body>\n</html>", fp);
 281 }
 282
 283 void
 284 writeblobhtml(FILE *fp, const git_blob *blob)
 285 {
 286         off_t i = 0;
 287         size_t n = 1;
 288         char *nfmt = "<a href=\"#l%d\" id=\"l%d\">%d</a>\n";
 289         const char *s = git_blob_rawcontent(blob);
 290         git_off_t len = git_blob_rawsize(blob);
 291
 292         fputs("<table id=\"blob\"><tr><td class=\"num\"><pre>\n", fp);
 293
 294         if (len) {
 295                 fprintf(fp, nfmt, n, n, n);
 296                 while (i < len - 1) {
 297                         if (s[i] == '\n') {
 298                                 n++;
 299                                 fprintf(fp, nfmt, n, n, n);
 300                         }
 301                         i++;
 302                 }
 303         }
 304
 305         fputs("</pre></td><td><pre>\n", fp);
 306         xmlencode(fp, s, (size_t)len);
 307         fputs("</pre></td></tr></table>\n", fp);
 308 }
 309
 310 void
 311 printcommit(FILE *fp, struct commitinfo *ci)
 312 {
 313         fprintf(fp, "<b>commit</b> <a href=\"%scommit/%s.html\">%s</a>\n",
 314                 relpath, ci->oid, ci->oid);
 315
 316         if (ci->parentoid[0])
 317                 fprintf(fp, "<b>parent</b> <a href=\"%scommit/%s.html\">%s</a>\n",
 318                         relpath, ci->parentoid, ci->parentoid);
 319
 320 #if 0
 321         if ((count = (int)git_commit_parentcount(commit)) > 1) {
 322                 fprintf(fp, "<b>Merge:</b>");
 323                 for (i = 0; i < count; i++) {
 324                         git_oid_tostr(buf, 8, git_commit_parent_id(commit, i));
 325                         fprintf(fp, " <a href=\"%scommit/%s.html\">%s</a>",
 326                                 relpath, buf, buf);
 327                 }
 328                 fputc('\n', fp);
 329         }
 330 #endif
 331         if (ci->author) {
 332                 fprintf(fp, "<b>Author:</b> ");
 333                 xmlencode(fp, ci->author->name, strlen(ci->author->name));
 334                 fprintf(fp, " &lt;<a href=\"mailto:");
 335                 xmlencode(fp, ci->author->email, strlen(ci->author->email));
 336                 fputs("\">", fp);
 337                 xmlencode(fp, ci->author->email, strlen(ci->author->email));
 338                 fputs("</a>&gt;\n<b>Date:</b>   ", fp);
 339                 printtime(fp, &(ci->author->when));
 340                 fputc('\n', fp);
 341         }
 342         fputc('\n', fp);
 343
 344         if (ci->msg)
 345                 xmlencode(fp, ci->msg, strlen(ci->msg));
 346
 347         fputc('\n', fp);
 348 }
 349
 350 void
 351 printshowfile(struct commitinfo *ci)
 352 {
 353         const git_diff_delta *delta;
 354         const git_diff_hunk *hunk;
 355         const git_diff_line *line;
 356         git_patch *patch;
 357         git_buf statsbuf;
 358         size_t ndeltas, nhunks, nhunklines;
 359         FILE *fp;
 360         size_t i, j, k;
 361         char path[PATH_MAX];
 362
 363         snprintf(path, sizeof(path), "commit/%s.html", ci->oid);
 364         /* check if file exists if so skip it */
 365         if (!access(path, F_OK))
 366                 return;
 367
 368         fp = efopen(path, "w");
 369         writeheader(fp);
 370         fputs("<pre>\n", fp);
 371         printcommit(fp, ci);
 372
 373         memset(&statsbuf, 0, sizeof(statsbuf));
 374
 375         /* diff stat */
 376         if (ci->stats) {
 377                 if (!git_diff_stats_to_buf(&statsbuf, ci->stats,
 378                     GIT_DIFF_STATS_FULL | GIT_DIFF_STATS_SHORT, 80)) {
 379                         if (statsbuf.ptr && statsbuf.ptr[0]) {
 380                                 fprintf(fp, "<b>Diffstat:</b>\n");
 381                                 fputs(statsbuf.ptr, fp);
 382                         }
 383                 }
 384         }
 385
 386         fputs("<hr/>", fp);
 387
 388         ndeltas = git_diff_num_deltas(ci->diff);
 389         for (i = 0; i < ndeltas; i++) {
 390                 if (git_patch_from_diff(&patch, ci->diff, i)) {
 391                         git_patch_free(patch);
 392                         break;
 393                 }
 394
 395                 delta = git_patch_get_delta(patch);
 396                 fprintf(fp, "<b>diff --git a/<a href=\"%sfile/%s.html\">%s</a> b/<a href=\"%sfile/%s.html\">%s</a></b>\n",
 397                         relpath, delta->old_file.path, delta->old_file.path,
 398                         relpath, delta->new_file.path, delta->new_file.path);
 399
 400                 /* check binary data */
 401                 if (delta->flags & GIT_DIFF_FLAG_BINARY) {
 402                         fputs("Binary files differ\n", fp);
 403                         git_patch_free(patch);
 404                         continue;
 405                 }
 406
 407                 nhunks = git_patch_num_hunks(patch);
 408                 for (j = 0; j < nhunks; j++) {
 409                         if (git_patch_get_hunk(&hunk, &nhunklines, patch, j))
 410                                 break;
 411
 412                         fprintf(fp, "<span class=\"h\">%s</span>\n", hunk->header);
 413
 414                         for (k = 0; ; k++) {
 415                                 if (git_patch_get_line_in_hunk(&line, patch, j, k))
 416                                         break;
 417                                 if (line->old_lineno == -1)
 418                                         fprintf(fp, "<a href=\"#h%zu-%zu\" id=\"h%zu-%zu\" class=\"i\">+",
 419                                                 j, k, j, k);
 420                                 else if (line->new_lineno == -1)
 421                                         fprintf(fp, "<a href=\"#h%zu-%zu\" id=\"h%zu-%zu\" class=\"d\">-",
 422                                                 j, k, j, k);
 423                                 else
 424                                         fputc(' ', fp);
 425                                 xmlencode(fp, line->content, line->content_len);
 426                                 if (line->old_lineno == -1 || line->new_lineno == -1)
 427                                         fputs("</a>", fp);
 428                         }
 429                 }
 430                 git_patch_free(patch);
 431         }
 432         git_buf_free(&statsbuf);
 433
 434         fputs( "</pre>\n", fp);
 435         writefooter(fp);
 436         fclose(fp);
 437         return;
 438 }
 439
 440 void
 441 writelog(FILE *fp)
 442 {
 443         struct commitinfo *ci;
 444         git_revwalk *w = NULL;
 445         git_oid id;
 446         size_t len;
 447
 448         mkdir("commit", 0755);
 449
 450         git_revwalk_new(&w, repo);
 451         git_revwalk_push_head(w);
 452         git_revwalk_sorting(w, GIT_SORT_TIME);
 453         git_revwalk_simplify_first_parent(w);
 454
 455         fputs("<table id=\"log\"><thead>\n<tr><td>Age</td><td>Commit message</td>"
 456                   "<td>Author</td><td>Files</td><td class=\"num\">+</td>"
 457                   "<td class=\"num\">-</td></tr>\n</thead><tbody>\n", fp);
 458         while (!git_revwalk_next(&id, w)) {
 459                 relpath = "";
 460
 461                 if (!(ci = commitinfo_getbyoid(&id)))
 462                         break;
 463
 464                 fputs("<tr><td>", fp);
 465                 if (ci->author)
 466                         printtimeshort(fp, &(ci->author->when));
 467                 fputs("</td><td>", fp);
 468                 if (ci->summary) {
 469                         fprintf(fp, "<a href=\"%scommit/%s.html\">", relpath, ci->oid);
 470                         if ((len = strlen(ci->summary)) > summarylen) {
 471                                 xmlencode(fp, ci->summary, summarylen - 1);
 472                                 fputs("…", fp);
 473                         } else {
 474                                 xmlencode(fp, ci->summary, len);
 475                         }
 476                         fputs("</a>", fp);
 477                 }
 478                 fputs("</td><td>", fp);
 479                 if (ci->author)
 480                         xmlencode(fp, ci->author->name, strlen(ci->author->name));
 481                 fputs("</td><td class=\"num\">", fp);
 482                 fprintf(fp, "%zu", ci->filecount);
 483                 fputs("</td><td class=\"num\">", fp);
 484                 fprintf(fp, "+%zu", ci->addcount);
 485                 fputs("</td><td class=\"num\">", fp);
 486                 fprintf(fp, "-%zu", ci->delcount);
 487                 fputs("</td></tr>\n", fp);
 488
 489                 relpath = "../";
 490                 printshowfile(ci);
 491
 492                 commitinfo_free(ci);
 493         }
 494         fprintf(fp, "</tbody></table>");
 495
 496         git_revwalk_free(w);
 497         relpath = "";
 498 }
 499
 500 void
 501 printcommitatom(FILE *fp, struct commitinfo *ci)
 502 {
 503         fputs("<entry>\n", fp);
 504
 505         fprintf(fp, "<id>%s</id>\n", ci->oid);
 506         if (ci->author) {
 507                 fputs("<updated>", fp);
 508                 printtimez(fp, &(ci->author->when));
 509                 fputs("</updated>\n", fp);
 510         }
 511         if (ci->summary) {
 512                 fputs("<title type=\"text\">", fp);
 513                 xmlencode(fp, ci->summary, strlen(ci->summary));
 514                 fputs("</title>\n", fp);
 515         }
 516
 517         fputs("<content type=\"text\">", fp);
 518         fprintf(fp, "commit %s\n", ci->oid);
 519         if (ci->parentoid[0])
 520                 fprintf(fp, "parent %s\n", ci->parentoid);
 521
 522 #if 0
 523         if ((count = (int)git_commit_parentcount(commit)) > 1) {
 524                 fprintf(fp, "Merge:");
 525                 for (i = 0; i < count; i++) {
 526                         git_oid_tostr(buf, 8, git_commit_parent_id(commit, i));
 527                         fprintf(fp, " %s", buf);
 528                 }
 529                 fputc('\n', fp);
 530         }
 531 #endif
 532
 533         if (ci->author) {
 534                 fprintf(fp, "Author: ");
 535                 xmlencode(fp, ci->author->name, strlen(ci->author->name));
 536                 fprintf(fp, " &lt;");
 537                 xmlencode(fp, ci->author->email, strlen(ci->author->email));
 538                 fprintf(fp, "&gt;\nDate:   ");
 539                 printtime(fp, &(ci->author->when));
 540         }
 541         fputc('\n', fp);
 542
 543         if (ci->msg)
 544                 xmlencode(fp, ci->msg, strlen(ci->msg));
 545         fputs("\n</content>\n", fp);
 546         if (ci->author) {
 547                 fputs("<author><name>", fp);
 548                 xmlencode(fp, ci->author->name, strlen(ci->author->name));
 549                 fputs("</name>\n<email>", fp);
 550                 xmlencode(fp, ci->author->email, strlen(ci->author->email));
 551                 fputs("</email>\n</author>\n", fp);
 552         }
 553         fputs("</entry>\n", fp);
 554 }
 555
 556 int
 557 writeatom(FILE *fp)
 558 {
 559         struct commitinfo *ci;
 560         git_revwalk *w = NULL;
 561         git_oid id;
 562         size_t i, m = 100; /* max */
 563
 564         fputs("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
 565               "<feed xmlns=\"http://www.w3.org/2005/Atom\">\n<title>", fp);
 566         xmlencode(fp, name, strlen(name));
 567         fputs(", branch master</title>\n<subtitle>", fp);
 568
 569         xmlencode(fp, description, strlen(description));
 570         fputs("</subtitle>\n", fp);
 571
 572         git_revwalk_new(&w, repo);
 573         git_revwalk_push_head(w);
 574         git_revwalk_sorting(w, GIT_SORT_TIME);
 575         git_revwalk_simplify_first_parent(w);
 576
 577         for (i = 0; i < m && !git_revwalk_next(&id, w); i++) {
 578                 if (!(ci = commitinfo_getbyoid(&id)))
 579                         break;
 580                 printcommitatom(fp, ci);
 581                 commitinfo_free(ci);
 582         }
 583         git_revwalk_free(w);
 584
 585         fputs("</feed>", fp);
 586
 587         return 0;
 588 }
 589
 590 int
 591 writeblob(git_object *obj, const char *filename, git_off_t filesize)
 592 {
 593         char fpath[PATH_MAX];
 594         char tmp[PATH_MAX] = "";
 595         char *d, *p;
 596         FILE *fp;
 597
 598         snprintf(fpath, sizeof(fpath), "file/%s.html", filename);
 599         d = xdirname(fpath);
 600         if (mkdirp(d)) {
 601                 free(d);
 602                 return 1;
 603         }
 604         free(d);
 605
 606         p = fpath;
 607         while (*p) {
 608                 if (*p == '/')
 609                         strlcat(tmp, "../", sizeof(tmp));
 610                 p++;
 611         }
 612         relpath = tmp;
 613
 614         fp = efopen(fpath, "w");
 615         writeheader(fp);
 616         fputs("<p> ", fp);
 617         xmlencode(fp, filename, strlen(filename));
 618         fprintf(fp, " (%" PRIu32 "b)", filesize);
 619         fputs("</p><hr/>", fp);
 620
 621         if (git_blob_is_binary((git_blob *)obj)) {
 622                 fprintf(fp, "<p>Binary file</p>\n");
 623         } else {
 624                 writeblobhtml(fp, (git_blob *)obj);
 625                 if (ferror(fp))
 626                         err(1, "fwrite");
 627         }
 628         writefooter(fp);
 629         fclose(fp);
 630
 631         relpath = "";
 632
 633         return 0;
 634 }
 635
 636 const char *
 637 filemode(git_filemode_t m)
 638 {
 639         static char mode[11];
 640
 641         memset(mode, '-', sizeof(mode) - 1);
 642         mode[10] = '\0';
 643
 644         if (S_ISREG(m))
 645                 mode[0] = '-';
 646         else if (S_ISBLK(m))
 647                 mode[0] = 'b';
 648         else if (S_ISCHR(m))
 649                 mode[0] = 'c';
 650         else if (S_ISDIR(m))
 651                 mode[0] = 'd';
 652         else if (S_ISFIFO(m))
 653                 mode[0] = 'p';
 654         else if (S_ISLNK(m))
 655                 mode[0] = 'l';
 656         else if (S_ISSOCK(m))
 657                 mode[0] = 's';
 658         else
 659                 mode[0] = '?';
 660
 661         if (m & S_IRUSR) mode[1] = 'r';
 662         if (m & S_IWUSR) mode[2] = 'w';
 663         if (m & S_IXUSR) mode[3] = 'x';
 664         if (m & S_IRGRP) mode[4] = 'r';
 665         if (m & S_IWGRP) mode[5] = 'w';
 666         if (m & S_IXGRP) mode[6] = 'x';
 667         if (m & S_IROTH) mode[7] = 'r';
 668         if (m & S_IWOTH) mode[8] = 'w';
 669         if (m & S_IXOTH) mode[9] = 'x';
 670
 671         if (m & S_ISUID) mode[3] = (mode[3] == 'x') ? 's' : 'S';
 672         if (m & S_ISGID) mode[6] = (mode[6] == 'x') ? 's' : 'S';
 673         if (m & S_ISVTX) mode[9] = (mode[9] == 'x') ? 't' : 'T';
 674
 675         return mode;
 676 }
 677
 678 int
 679 writefilestree(FILE *fp, git_tree *tree, const char *path)
 680 {
 681         const git_tree_entry *entry = NULL;
 682         const char *filename;
 683         char filepath[PATH_MAX];
 684         git_object *obj = NULL;
 685         git_off_t filesize;
 686         size_t count, i;
 687         int ret;
 688
 689         count = git_tree_entrycount(tree);
 690         for (i = 0; i < count; i++) {
 691                 if (!(entry = git_tree_entry_byindex(tree, i)))
 692                         return -1;
 693
 694                 filename = git_tree_entry_name(entry);
 695                 if (git_tree_entry_to_object(&obj, repo, entry))
 696                         return -1;
 697                 switch (git_object_type(obj)) {
 698                 case GIT_OBJ_BLOB:
 699                         break;
 700                 case GIT_OBJ_TREE:
 701                         ret = writefilestree(fp, (git_tree *)obj, filename);
 702                         git_object_free(obj);
 703                         if (ret)
 704                                 return ret;
 705                         continue;
 706                 default:
 707                         git_object_free(obj);
 708                         continue;
 709                 }
 710                 if (path[0]) {
 711                         snprintf(filepath, sizeof(filepath), "%s/%s", path, filename);
 712                         filename = filepath;
 713                 }
 714
 715                 filesize = git_blob_rawsize((git_blob *)obj);
 716
 717                 fputs("<tr><td>", fp);
 718                 fprintf(fp, "%s", filemode(git_tree_entry_filemode(entry)));
 719                 fprintf(fp, "</td><td><a href=\"%sfile/", relpath);
 720                 xmlencode(fp, filename, strlen(filename));
 721                 fputs(".html\">", fp);
 722                 xmlencode(fp, filename, strlen(filename));
 723                 fputs("</a></td><td class=\"num\">", fp);
 724                 fprintf(fp, "%" PRIu32, filesize);
 725                 fputs("</td></tr>\n", fp);
 726
 727                 writeblob(obj, filename, filesize);
 728         }
 729
 730         return 0;
 731 }
 732
 733 int
 734 writefiles(FILE *fp)
 735 {
 736         const git_oid *id;
 737         git_tree *tree = NULL;
 738         git_object *obj = NULL;
 739         git_commit *commit = NULL;
 740
 741         fputs("<table id=\"files\"><thead>\n<tr>"
 742               "<td>Mode</td><td>Name</td><td class=\"num\">Size</td>"
 743               "</tr>\n</thead><tbody>\n", fp);
 744
 745         if (git_revparse_single(&obj, repo, "HEAD"))
 746                 return -1;
 747         id = git_object_id(obj);
 748         if (git_commit_lookup(&commit, repo, id))
 749                 return -1;
 750         if (git_commit_tree(&tree, commit)) {
 751                 git_commit_free(commit);
 752                 return -1;
 753         }
 754         git_commit_free(commit);
 755
 756         writefilestree(fp, tree, "");
 757
 758         git_commit_free(commit);
 759         git_tree_free(tree);
 760
 761         fputs("</tbody></table>", fp);
 762
 763         return 0;
 764 }
 765
 766 int
 767 main(int argc, char *argv[])
 768 {
 769         git_object *obj = NULL;
 770         const git_error *e = NULL;
 771         FILE *fp, *fpread;
 772         char path[PATH_MAX], *p;
 773         int status;
 774
 775         if (argc != 2) {
 776                 fprintf(stderr, "%s <repodir>\n", argv[0]);
 777                 return 1;
 778         }
 779         repodir = argv[1];
 780
 781         git_libgit2_init();
 782
 783         if ((status = git_repository_open_ext(&repo, repodir,
 784                 GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) < 0) {
 785                 e = giterr_last();
 786                 fprintf(stderr, "error %d/%d: %s\n", status, e->klass, e->message);
 787                 return status;
 788         }
 789
 790         /* use directory name as name */
 791         p = xbasename(repodir);
 792         snprintf(name, sizeof(name), "%s", p);
 793         free(p);
 794
 795         /* read description or .git/description */
 796         snprintf(path, sizeof(path), "%s%s%s",
 797                 repodir, repodir[strlen(repodir)] == '/' ? "" : "/", "description");
 798         if (!(fpread = fopen(path, "r"))) {
 799                 snprintf(path, sizeof(path), "%s%s%s",
 800                         repodir, repodir[strlen(repodir)] == '/' ? "" : "/", ".git/description");
 801                 fpread = fopen(path, "r");
 802         }
 803         if (fpread) {
 804                 if (!fgets(description, sizeof(description), fpread))
 805                         description[0] = '\0';
 806                 fclose(fpread);
 807         }
 808
 809         /* read url or .git/url */
 810         snprintf(path, sizeof(path), "%s%s%s",
 811                 repodir, repodir[strlen(repodir)] == '/' ? "" : "/", "url");
 812         if (!(fpread = fopen(path, "r"))) {
 813                 snprintf(path, sizeof(path), "%s%s%s",
 814                         repodir, repodir[strlen(repodir)] == '/' ? "" : "/", ".git/url");
 815                 fpread = fopen(path, "r");
 816         }
 817         if (fpread) {
 818                 if (!fgets(cloneurl, sizeof(cloneurl), fpread))
 819                         cloneurl[0] = '\0';
 820                 fclose(fpread);
 821         }
 822
 823         /* check LICENSE */
 824         haslicense = !git_revparse_single(&obj, repo, "HEAD:LICENSE");
 825         git_object_free(obj);
 826         /* check README */
 827         hasreadme = !git_revparse_single(&obj, repo, "HEAD:README");
 828         git_object_free(obj);
 829
 830         fp = efopen("log.html", "w");
 831         writeheader(fp);
 832         writelog(fp);
 833         writefooter(fp);
 834         fclose(fp);
 835
 836         fp = efopen("files.html", "w");
 837         writeheader(fp);
 838         writefiles(fp);
 839         writefooter(fp);
 840         fclose(fp);
 841
 842         /* Atom feed */
 843         fp = efopen("atom.xml", "w");
 844         writeatom(fp);
 845         fclose(fp);
 846
 847         /* cleanup */
 848         git_repository_free(repo);
 849         git_libgit2_shutdown();
 850
 851         return 0;
 852 }