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         intm = gmtime(&t);
  53         strftime(out, sizeof(out), fmt, intm);
  54         fputs(out, fp);
  55 }
  56
  57 void
  58 printtimeshort(FILE *fp, const git_time *intime)
  59 {
  60         printtimeformat(fp, intime, "%Y-%m-%d %H:%M");
  61 }
  62
  63 int
  64 writeheader(FILE *fp)
  65 {
  66         fputs("<!DOCTYPE html>\n"
  67                 "<html dir=\"ltr\" lang=\"en\">\n<head>\n"
  68                 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
  69                 "<meta http-equiv=\"Content-Language\" content=\"en\" />\n<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><h1>%s</h1><span class=\"desc\">%s</span></td></tr><tr><td></td><td>\n",
  76                 relpath, name, description);
  77         fputs("</td></tr>\n</table>\n<hr/>\n<div id=\"content\">\n"
  78               "<table id=\"index\"><thead>\n"
  79               "<tr><td>Name</td><td>Description</td><td>Owner</td><td>Last commit</td></tr>"
  80               "</thead><tbody>\n", fp);
  81
  82         return 0;
  83 }
  84
  85 int
  86 writefooter(FILE *fp)
  87 {
  88         return !fputs("</tbody>\n</table>\n</div>\n</body>\n</html>\n", fp);
  89 }
  90
  91 int
  92 writelog(FILE *fp)
  93 {
  94         char *stripped_name = NULL, *p;
  95         git_commit *commit = NULL;
  96         const git_signature *author;
  97         git_revwalk *w = NULL;
  98         git_oid id;
  99         int ret = 0;
 100
 101         git_revwalk_new(&w, repo);
 102         git_revwalk_push_head(w);
 103         git_revwalk_sorting(w, GIT_SORT_TIME);
 104         git_revwalk_simplify_first_parent(w);
 105
 106         if (git_revwalk_next(&id, w) ||
 107             git_commit_lookup(&commit, repo, &id)) {
 108                 ret = -1;
 109                 goto err;
 110         }
 111
 112         author = git_commit_author(commit);
 113
 114         /* strip .git suffix */
 115         if (!(stripped_name = strdup(name)))
 116                 err(1, "strdup");
 117         if ((p = strrchr(stripped_name, '.')))
 118                 if (!strcmp(p, ".git"))
 119                         *p = '\0';
 120
 121         fputs("<tr><td><a href=\"", fp);
 122         xmlencode(fp, stripped_name, strlen(stripped_name));
 123         fputs("/log.html\">", fp);
 124         xmlencode(fp, stripped_name, strlen(stripped_name));
 125         fputs("</a></td><td>", fp);
 126         xmlencode(fp, description, strlen(description));
 127         fputs("</td><td>", fp);
 128         xmlencode(fp, owner, strlen(owner));
 129         fputs("</td><td>", fp);
 130         if (author)
 131                 printtimeshort(fp, &(author->when));
 132         fputs("</td></tr>", fp);
 133
 134         git_commit_free(commit);
 135 err:
 136         git_revwalk_free(w);
 137         free(stripped_name);
 138
 139         return ret;
 140 }
 141
 142 int
 143 main(int argc, char *argv[])
 144 {
 145         const git_error *e = NULL;
 146         FILE *fp;
 147         char path[PATH_MAX], repodirabs[PATH_MAX + 1];
 148         int i, r, ret = 0;
 149
 150         if (argc < 2) {
 151                 fprintf(stderr, "%s [repodir...]\n", argv[0]);
 152                 return 1;
 153         }
 154         git_libgit2_init();
 155
 156         writeheader(stdout);
 157
 158         for (i = 1; i < argc; i++) {
 159                 repodir = argv[i];
 160                 if (!realpath(repodir, repodirabs))
 161                         err(1, "realpath");
 162
 163                 if (git_repository_open_ext(&repo, repodir,
 164                     GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) {
 165                         e = giterr_last();
 166                         fprintf(stderr, "%s: %s\n", argv[0], e->message);
 167                         ret = 1;
 168                         continue;
 169                 }
 170
 171                 /* use directory name as name */
 172                 if ((name = strrchr(repodirabs, '/')))
 173                         name++;
 174                 else
 175                         name = "";
 176
 177                 /* read description or .git/description */
 178                 description[0] = '\0';
 179                 r = snprintf(path, sizeof(path), "%s%s%s",
 180                         repodir, repodir[strlen(repodir)] == '/' ? "" : "/", "description");
 181                 if (r == -1 || (size_t)r >= sizeof(path))
 182                         errx(1, "path truncated: '%s%s%s'",
 183                                 repodir, repodir[strlen(repodir)] == '/' ? "" : "/", "description");
 184                 if (!(fp = fopen(path, "r"))) {
 185                         r = snprintf(path, sizeof(path), "%s%s%s",
 186                                 repodir, repodir[strlen(repodir)] == '/' ? "" : "/", ".git/description");
 187                         if (r == -1 || (size_t)r >= sizeof(path))
 188                                 errx(1, "path truncated: '%s%s%s'",
 189                                         repodir, repodir[strlen(repodir)] == '/' ? "" : "/", ".git/description");
 190                         fp = fopen(path, "r");
 191                 }
 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                 owner[0] = '\0';
 200                 r = snprintf(path, sizeof(path), "%s%s%s",
 201                         repodir, repodir[strlen(repodir)] == '/' ? "" : "/", "owner");
 202                 if (r == -1 || (size_t)r >= sizeof(path))
 203                         errx(1, "path truncated: '%s%s%s'",
 204                                 repodir, repodir[strlen(repodir)] == '/' ? "" : "/", "owner");
 205                 if (!(fp = fopen(path, "r"))) {
 206                         r = snprintf(path, sizeof(path), "%s%s%s",
 207                                 repodir, repodir[strlen(repodir)] == '/' ? "" : "/", ".git/owner");
 208                         if (r == -1 || (size_t)r >= sizeof(path))
 209                                 errx(1, "path truncated: '%s%s%s'",
 210                                         repodir, repodir[strlen(repodir)] == '/' ? "" : "/", ".git/owner");
 211                         fp = fopen(path, "r");
 212                 }
 213                 if (fp) {
 214                         if (!fgets(owner, sizeof(owner), fp))
 215                                 owner[0] = '\0';
 216                         owner[strcspn(owner, "\n")] = '\0';
 217                         fclose(fp);
 218                 }
 219                 writelog(stdout);
 220         }
 221         writefooter(stdout);
 222
 223         /* cleanup */
 224         git_repository_free(repo);
 225         git_libgit2_shutdown();
 226
 227         return ret;
 228 }