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
  16 static git_repository *repo;
  17
  18 static const char *relpath = "";
  19
  20 static char description[255] = "Repositories";
  21 static char *name = "";
  22 static char owner[255];
  23
  24 void
  25 joinpath(char *buf, size_t bufsiz, const char *path, const char *path2)
  26 {
  27         int r;
  28
  29         r = snprintf(buf, bufsiz, "%s%s%s",
  30                 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
  31         if (r < 0 || (size_t)r >= bufsiz)
  32                 errx(1, "path truncated: '%s%s%s'",
  33                         path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
  34 }
  35
  36 /* Escape characters below as HTML 2.0 / XML 1.0. */
  37 void
  38 xmlencode(FILE *fp, const char *s, size_t len)
  39 {
  40         size_t i;
  41
  42         for (i = 0; *s && i < len; s++, i++) {
  43                 switch(*s) {
  44                 case '<':  fputs("&lt;",   fp); break;
  45                 case '>':  fputs("&gt;",   fp); break;
  46                 case '\'': fputs("&#39;" , fp); break;
  47                 case '&':  fputs("&amp;",  fp); break;
  48                 case '"':  fputs("&quot;", fp); break;
  49                 default:   fputc(*s, fp);
  50                 }
  51         }
  52 }
  53
  54 void
  55 printtimeshort(FILE *fp, const git_time *intime)
  56 {
  57         struct tm *intm;
  58         time_t t;
  59         char out[32];
  60
  61         t = (time_t)intime->time;
  62         if (!(intm = gmtime(&t)))
  63                 return;
  64         strftime(out, sizeof(out), "%Y-%m-%d %H:%M", intm);
  65         fputs(out, fp);
  66 }
  67
  68 void
  69 writeheader(FILE *fp)
  70 {
  71         fputs("<!DOCTYPE html>\n"
  72                 "<html>\n<head>\n"
  73                 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
  74                 "<title>", fp);
  75         xmlencode(fp, description, strlen(description));
  76         fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath);
  77         fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath);
  78         fputs("</head>\n<body>\n", fp);
  79         fprintf(fp, "<table>\n<tr><td><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></td>\n"
  80                 "<td><span class=\"desc\">", relpath);
  81         xmlencode(fp, description, strlen(description));
  82         fputs("</span></td></tr><tr><td></td><td>\n"
  83                 "</td></tr>\n</table>\n<hr/>\n<div id=\"content\">\n"
  84                 "<table id=\"index\"><thead>\n"
  85                 "<tr><td><b>Name</b></td><td><b>Description</b></td><td><b>Owner</b></td>"
  86                 "<td><b>Last commit</b></td></tr>"
  87                 "</thead><tbody>\n", fp);
  88 }
  89
  90 void
  91 writefooter(FILE *fp)
  92 {
  93         fputs("</tbody>\n</table>\n</div>\n</body>\n</html>\n", fp);
  94 }
  95
  96 int
  97 writelog(FILE *fp)
  98 {
  99         git_commit *commit = NULL;
 100         const git_signature *author;
 101         git_revwalk *w = NULL;
 102         git_oid id;
 103         char *stripped_name = NULL, *p;
 104         int ret = 0;
 105
 106         git_revwalk_new(&w, repo);
 107         git_revwalk_push_head(w);
 108         git_revwalk_simplify_first_parent(w);
 109
 110         if (git_revwalk_next(&id, w) ||
 111             git_commit_lookup(&commit, repo, &id)) {
 112                 ret = -1;
 113                 goto err;
 114         }
 115
 116         author = git_commit_author(commit);
 117
 118         /* strip .git suffix */
 119         if (!(stripped_name = strdup(name)))
 120                 err(1, "strdup");
 121         if ((p = strrchr(stripped_name, '.')))
 122                 if (!strcmp(p, ".git"))
 123                         *p = '\0';
 124
 125         fputs("<tr><td><a href=\"", fp);
 126         xmlencode(fp, stripped_name, strlen(stripped_name));
 127         fputs("/log.html\">", fp);
 128         xmlencode(fp, stripped_name, strlen(stripped_name));
 129         fputs("</a></td><td>", fp);
 130         xmlencode(fp, description, strlen(description));
 131         fputs("</td><td>", fp);
 132         xmlencode(fp, owner, strlen(owner));
 133         fputs("</td><td>", fp);
 134         if (author)
 135                 printtimeshort(fp, &(author->when));
 136         fputs("</td></tr>", fp);
 137
 138         git_commit_free(commit);
 139 err:
 140         git_revwalk_free(w);
 141         free(stripped_name);
 142
 143         return ret;
 144 }
 145
 146 int
 147 main(int argc, char *argv[])
 148 {
 149         FILE *fp;
 150         char path[PATH_MAX], repodirabs[PATH_MAX + 1];
 151         const char *repodir;
 152         int i, ret = 0;
 153
 154         if (argc < 2) {
 155                 fprintf(stderr, "%s [repodir...]\n", argv[0]);
 156                 return 1;
 157         }
 158
 159         git_libgit2_init();
 160
 161 #ifdef __OpenBSD__
 162         if (pledge("stdio rpath", NULL) == -1)
 163                 err(1, "pledge");
 164 #endif
 165
 166         writeheader(stdout);
 167
 168         for (i = 1; i < argc; i++) {
 169                 repodir = argv[i];
 170                 if (!realpath(repodir, repodirabs))
 171                         err(1, "realpath");
 172
 173                 if (git_repository_open_ext(&repo, repodir,
 174                     GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) {
 175                         fprintf(stderr, "%s: cannot open repository\n", argv[0]);
 176                         ret = 1;
 177                         continue;
 178                 }
 179
 180                 /* use directory name as name */
 181                 if ((name = strrchr(repodirabs, '/')))
 182                         name++;
 183                 else
 184                         name = "";
 185
 186                 /* read description or .git/description */
 187                 joinpath(path, sizeof(path), repodir, "description");
 188                 if (!(fp = fopen(path, "r"))) {
 189                         joinpath(path, sizeof(path), repodir, ".git/description");
 190                         fp = fopen(path, "r");
 191                 }
 192                 description[0] = '\0';
 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                 joinpath(path, sizeof(path), repodir, "owner");
 201                 if (!(fp = fopen(path, "r"))) {
 202                         joinpath(path, sizeof(path), repodir, ".git/owner");
 203                         fp = fopen(path, "r");
 204                 }
 205                 owner[0] = '\0';
 206                 if (fp) {
 207                         if (!fgets(owner, sizeof(owner), fp))
 208                                 owner[0] = '\0';
 209                         owner[strcspn(owner, "\n")] = '\0';
 210                         fclose(fp);
 211                 }
 212                 writelog(stdout);
 213         }
 214         writefooter(stdout);
 215
 216         /* cleanup */
 217         git_repository_free(repo);
 218         git_libgit2_shutdown();
 219
 220         return ret;
 221 }