stagit-index.c

   1 #include <sys/stat.h>
   2
   3 #include <err.h>
   4 #include <errno.h>
   5 #include <inttypes.h>
   6 #include <limits.h>
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <string.h>
  10 #include <unistd.h>
  11
  12 #include <git2.h>
  13
  14 #include "compat.h"
  15 #include "config.h"
  16
  17 static git_repository *repo;
  18
  19 static const char *relpath = "";
  20 static const char *repodir;
  21
  22 static char description[255] = "Repositories";
  23 static char *name = "";
  24 static char owner[255];
  25
  26 /* Escape characters below as HTML 2.0 / XML 1.0. */
  27 void
  28 xmlencode(FILE *fp, const char *s, size_t len)
  29 {
  30         size_t i;
  31
  32         for (i = 0; *s && i < len; s++, i++) {
  33                 switch(*s) {
  34                 case '<':  fputs("&lt;",   fp); break;
  35                 case '>':  fputs("&gt;",   fp); break;
  36                 case '\'': fputs("&apos;", fp); break;
  37                 case '&':  fputs("&amp;",  fp); break;
  38                 case '"':  fputs("&quot;", fp); break;
  39                 default:   fputc(*s, fp);
  40                 }
  41         }
  42 }
  43
  44 void
  45 printtimeformat(FILE *fp, const git_time *intime, const char *fmt)
  46 {
  47         struct tm *intm;
  48         time_t t;
  49         char out[32];
  50
  51         t = (time_t) intime->time + (intime->offset * 60);
  52         if (!(intm = gmtime(&t)))
  53                 return;
  54         strftime(out, sizeof(out), fmt, intm);
  55         fputs(out, fp);
  56 }
  57
  58 void
  59 printtimeshort(FILE *fp, const git_time *intime)
  60 {
  61         printtimeformat(fp, intime, "%Y-%m-%d %H:%M");
  62 }
  63
  64 int
  65 writeheader(FILE *fp)
  66 {
  67         fputs("<!DOCTYPE html>\n"
  68                 "<html dir=\"ltr\" lang=\"en\">\n<head>\n"
  69                 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
  70                 "<meta http-equiv=\"Content-Language\" content=\"en\" />\n<title>", fp);
  71         xmlencode(fp, description, strlen(description));
  72         fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath);
  73         fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath);
  74         fputs("</head>\n<body>\n", fp);
  75         fprintf(fp, "<table>\n<tr><td><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></td>\n"
  76                 "<td><h1>%s</h1><span class=\"desc\">%s</span></td></tr><tr><td></td><td>\n",
  77                 relpath, name, description);
  78         fputs("</td></tr>\n</table>\n<hr/>\n<div id=\"content\">\n"
  79               "<table id=\"index\"><thead>\n"
  80               "<tr><td>Name</td><td>Description</td><td>Owner</td><td>Last commit</td></tr>"
  81               "</thead><tbody>\n", fp);
  82
  83         return 0;
  84 }
  85
  86 int
  87 writefooter(FILE *fp)
  88 {
  89         return !fputs("</tbody>\n</table>\n</div>\n</body>\n</html>\n", fp);
  90 }
  91
  92 int
  93 writelog(FILE *fp)
  94 {
  95         char *stripped_name = NULL, *p;
  96         git_commit *commit = NULL;
  97         const git_signature *author;
  98         git_revwalk *w = NULL;
  99         git_oid id;
 100         int ret = 0;
 101
 102         git_revwalk_new(&w, repo);
 103         git_revwalk_push_head(w);
 104         git_revwalk_sorting(w, GIT_SORT_TIME);
 105         git_revwalk_simplify_first_parent(w);
 106
 107         if (git_revwalk_next(&id, w) ||
 108             git_commit_lookup(&commit, repo, &id)) {
 109                 ret = -1;
 110                 goto err;
 111         }
 112
 113         author = git_commit_author(commit);
 114
 115         /* strip .git suffix */
 116         if (!(stripped_name = strdup(name)))
 117                 err(1, "strdup");
 118         if ((p = strrchr(stripped_name, '.')))
 119                 if (!strcmp(p, ".git"))
 120                         *p = '\0';
 121
 122         fputs("<tr><td><a href=\"", fp);
 123         xmlencode(fp, stripped_name, strlen(stripped_name));
 124         fputs("/log.html\">", fp);
 125         xmlencode(fp, stripped_name, strlen(stripped_name));
 126         fputs("</a></td><td>", fp);
 127         xmlencode(fp, description, strlen(description));
 128         fputs("</td><td>", fp);
 129         xmlencode(fp, owner, strlen(owner));
 130         fputs("</td><td>", fp);
 131         if (author)
 132                 printtimeshort(fp, &(author->when));
 133         fputs("</td></tr>", fp);
 134
 135         git_commit_free(commit);
 136 err:
 137         git_revwalk_free(w);
 138         free(stripped_name);
 139
 140         return ret;
 141 }
 142
 143 int
 144 main(int argc, char *argv[])
 145 {
 146         const git_error *e = NULL;
 147         FILE *fp;
 148         char path[PATH_MAX], repodirabs[PATH_MAX + 1];
 149         int i, r, ret = 0;
 150
 151         if (argc < 2) {
 152                 fprintf(stderr, "%s [repodir...]\n", argv[0]);
 153                 return 1;
 154         }
 155         git_libgit2_init();
 156
 157         writeheader(stdout);
 158
 159         for (i = 1; i < argc; i++) {
 160                 repodir = argv[i];
 161                 if (!realpath(repodir, repodirabs))
 162                         err(1, "realpath");
 163
 164                 if (git_repository_open_ext(&repo, repodir,
 165                     GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) {
 166                         e = giterr_last();
 167                         fprintf(stderr, "%s: %s\n", argv[0], e->message);
 168                         ret = 1;
 169                         continue;
 170                 }
 171
 172                 /* use directory name as name */
 173                 if ((name = strrchr(repodirabs, '/')))
 174                         name++;
 175                 else
 176                         name = "";
 177
 178                 /* read description or .git/description */
 179                 description[0] = '\0';
 180                 r = snprintf(path, sizeof(path), "%s%s%s",
 181                         repodir, repodir[strlen(repodir)] == '/' ? "" : "/", "description");
 182                 if (r == -1 || (size_t)r >= sizeof(path))
 183                         errx(1, "path truncated: '%s%s%s'",
 184                                 repodir, repodir[strlen(repodir)] == '/' ? "" : "/", "description");
 185                 if (!(fp = fopen(path, "r"))) {
 186                         r = snprintf(path, sizeof(path), "%s%s%s",
 187                                 repodir, repodir[strlen(repodir)] == '/' ? "" : "/", ".git/description");
 188                         if (r == -1 || (size_t)r >= sizeof(path))
 189                                 errx(1, "path truncated: '%s%s%s'",
 190                                         repodir, repodir[strlen(repodir)] == '/' ? "" : "/", ".git/description");
 191                         fp = fopen(path, "r");
 192                 }
 193                 if (fp) {
 194                         if (!fgets(description, sizeof(description), fp))
 195                                 description[0] = '\0';
 196                         fclose(fp);
 197                 }
 198
 199                 /* read owner or .git/owner */
 200                 owner[0] = '\0';
 201                 r = snprintf(path, sizeof(path), "%s%s%s",
 202                         repodir, repodir[strlen(repodir)] == '/' ? "" : "/", "owner");
 203                 if (r == -1 || (size_t)r >= sizeof(path))
 204                         errx(1, "path truncated: '%s%s%s'",
 205                                 repodir, repodir[strlen(repodir)] == '/' ? "" : "/", "owner");
 206                 if (!(fp = fopen(path, "r"))) {
 207                         r = snprintf(path, sizeof(path), "%s%s%s",
 208                                 repodir, repodir[strlen(repodir)] == '/' ? "" : "/", ".git/owner");
 209                         if (r == -1 || (size_t)r >= sizeof(path))
 210                                 errx(1, "path truncated: '%s%s%s'",
 211                                         repodir, repodir[strlen(repodir)] == '/' ? "" : "/", ".git/owner");
 212                         fp = fopen(path, "r");
 213                 }
 214                 if (fp) {
 215                         if (!fgets(owner, sizeof(owner), fp))
 216                                 owner[0] = '\0';
 217                         owner[strcspn(owner, "\n")] = '\0';
 218                         fclose(fp);
 219                 }
 220                 writelog(stdout);
 221         }
 222         writefooter(stdout);
 223
 224         /* cleanup */
 225         git_repository_free(repo);
 226         git_libgit2_shutdown();
 227
 228         return ret;
 229 }