stagit-index.c

   1 #include <err.h>
   2 #include <limits.h>
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <string.h>
   6 #include <time.h>
   7 #include <unistd.h>
   8
   9 #include <git2.h>
  10
  11 static git_repository *repo;
  12
  13 static const char *relpath = "";
  14
  15 static char description[255] = "Repositories";
  16 static char *name = "";
  17 static char owner[255];
  18
  19 void
  20 joinpath(char *buf, size_t bufsiz, const char *path, const char *path2)
  21 {
  22         int r;
  23
  24         r = snprintf(buf, bufsiz, "%s%s%s",
  25                 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
  26         if (r < 0 || (size_t)r >= bufsiz)
  27                 errx(1, "path truncated: '%s%s%s'",
  28                         path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
  29 }
  30
  31 /* Escape characters below as HTML 2.0 / XML 1.0. */
  32 void
  33 xmlencode(FILE *fp, const char *s, size_t len)
  34 {
  35         size_t i;
  36
  37         for (i = 0; *s && i < len; s++, i++) {
  38                 switch(*s) {
  39                 case '<':  fputs("&lt;",   fp); break;
  40                 case '>':  fputs("&gt;",   fp); break;
  41                 case '\'': fputs("&#39;" , fp); break;
  42                 case '&':  fputs("&amp;",  fp); break;
  43                 case '"':  fputs("&quot;", fp); break;
  44                 default:   fputc(*s, fp);
  45                 }
  46         }
  47 }
  48
  49 void
  50 printtimeshort(FILE *fp, const git_time *intime)
  51 {
  52         struct tm *intm;
  53         time_t t;
  54         char out[32];
  55
  56         t = (time_t)intime->time;
  57         if (!(intm = gmtime(&t)))
  58                 return;
  59         strftime(out, sizeof(out), "%Y-%m-%d %H:%M", intm);
  60         fputs(out, fp);
  61 }
  62
  63 void
  64 writeheader(FILE *fp)
  65 {
  66         fputs("<!DOCTYPE html>\n"
  67                 "<html>\n<head>\n"
  68                 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
  69                 "<title>", fp);
  70         xmlencode(fp, description, strlen(description));
  71         fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath);
  72         fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath);
  73         fputs("</head>\n<body>\n", fp);
  74         fprintf(fp, "<table>\n<tr><td><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></td>\n"
  75                 "<td><span class=\"desc\">", relpath);
  76         xmlencode(fp, description, strlen(description));
  77         fputs("</span></td></tr><tr><td></td><td>\n"
  78                 "</td></tr>\n</table>\n<hr/>\n<div id=\"content\">\n"
  79                 "<table id=\"index\"><thead>\n"
  80                 "<tr><td><b>Name</b></td><td><b>Description</b></td><td><b>Owner</b></td>"
  81                 "<td><b>Last commit</b></td></tr>"
  82                 "</thead><tbody>\n", fp);
  83 }
  84
  85 void
  86 writefooter(FILE *fp)
  87 {
  88         fputs("</tbody>\n</table>\n</div>\n</body>\n</html>\n", fp);
  89 }
  90
  91 int
  92 writelog(FILE *fp)
  93 {
  94         git_commit *commit = NULL;
  95         const git_signature *author;
  96         git_revwalk *w = NULL;
  97         git_oid id;
  98         char *stripped_name = NULL, *p;
  99         int ret = 0;
 100
 101         git_revwalk_new(&w, repo);
 102         git_revwalk_push_head(w);
 103         git_revwalk_simplify_first_parent(w);
 104
 105         if (git_revwalk_next(&id, w) ||
 106             git_commit_lookup(&commit, repo, &id)) {
 107                 ret = -1;
 108                 goto err;
 109         }
 110
 111         author = git_commit_author(commit);
 112
 113         /* strip .git suffix */
 114         if (!(stripped_name = strdup(name)))
 115                 err(1, "strdup");
 116         if ((p = strrchr(stripped_name, '.')))
 117                 if (!strcmp(p, ".git"))
 118                         *p = '\0';
 119
 120         fputs("<tr><td><a href=\"", fp);
 121         xmlencode(fp, stripped_name, strlen(stripped_name));
 122         fputs("/log.html\">", fp);
 123         xmlencode(fp, stripped_name, strlen(stripped_name));
 124         fputs("</a></td><td>", fp);
 125         xmlencode(fp, description, strlen(description));
 126         fputs("</td><td>", fp);
 127         xmlencode(fp, owner, strlen(owner));
 128         fputs("</td><td>", fp);
 129         if (author)
 130                 printtimeshort(fp, &(author->when));
 131         fputs("</td></tr>", fp);
 132
 133         git_commit_free(commit);
 134 err:
 135         git_revwalk_free(w);
 136         free(stripped_name);
 137
 138         return ret;
 139 }
 140
 141 int
 142 main(int argc, char *argv[])
 143 {
 144         FILE *fp;
 145         char path[PATH_MAX], repodirabs[PATH_MAX + 1];
 146         const char *repodir;
 147         int i, ret = 0;
 148
 149         if (argc < 2) {
 150                 fprintf(stderr, "%s [repodir...]\n", argv[0]);
 151                 return 1;
 152         }
 153
 154         git_libgit2_init();
 155
 156 #ifdef __OpenBSD__
 157         for (i = 1; i < argc; i++)
 158                 if (unveil(argv[i], "r") == -1)
 159                         err(1, "unveil: %s", argv[i]);
 160
 161         if (pledge("stdio rpath", NULL) == -1)
 162                 err(1, "pledge");
 163 #endif
 164
 165         writeheader(stdout);
 166
 167         for (i = 1; i < argc; i++) {
 168                 repodir = argv[i];
 169                 if (!realpath(repodir, repodirabs))
 170                         err(1, "realpath");
 171
 172                 if (git_repository_open_ext(&repo, repodir,
 173                     GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) {
 174                         fprintf(stderr, "%s: cannot open repository\n", argv[0]);
 175                         ret = 1;
 176                         continue;
 177                 }
 178
 179                 /* use directory name as name */
 180                 if ((name = strrchr(repodirabs, '/')))
 181                         name++;
 182                 else
 183                         name = "";
 184
 185                 /* read description or .git/description */
 186                 joinpath(path, sizeof(path), repodir, "description");
 187                 if (!(fp = fopen(path, "r"))) {
 188                         joinpath(path, sizeof(path), repodir, ".git/description");
 189                         fp = fopen(path, "r");
 190                 }
 191                 description[0] = '\0';
 192                 if (fp) {
 193                         if (!fgets(description, sizeof(description), fp))
 194                                 description[0] = '\0';
 195                         fclose(fp);
 196                 }
 197
 198                 /* read owner or .git/owner */
 199                 joinpath(path, sizeof(path), repodir, "owner");
 200                 if (!(fp = fopen(path, "r"))) {
 201                         joinpath(path, sizeof(path), repodir, ".git/owner");
 202                         fp = fopen(path, "r");
 203                 }
 204                 owner[0] = '\0';
 205                 if (fp) {
 206                         if (!fgets(owner, sizeof(owner), fp))
 207                                 owner[0] = '\0';
 208                         owner[strcspn(owner, "\n")] = '\0';
 209                         fclose(fp);
 210                 }
 211                 writelog(stdout);
 212         }
 213         writefooter(stdout);
 214
 215         /* cleanup */
 216         git_repository_free(repo);
 217         git_libgit2_shutdown();
 218
 219         return ret;
 220 }