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 static const char *repodir;
  20
  21 static char description[255] = "Repositories";
  22 static char *name = "";
  23 static char owner[255];
  24
  25 #ifndef USE_PLEDGE
  26 int
  27 pledge(const char *promises, const char *paths[])
  28 {
  29         return 0;
  30 }
  31 #endif
  32
  33 /* Escape characters below as HTML 2.0 / XML 1.0. */
  34 void
  35 xmlencode(FILE *fp, const char *s, size_t len)
  36 {
  37         size_t i;
  38
  39         for (i = 0; *s && i < len; s++, i++) {
  40                 switch(*s) {
  41                 case '<':  fputs("&lt;",   fp); break;
  42                 case '>':  fputs("&gt;",   fp); break;
  43                 case '\'': fputs("&apos;", fp); break;
  44                 case '&':  fputs("&amp;",  fp); break;
  45                 case '"':  fputs("&quot;", fp); break;
  46                 default:   fputc(*s, fp);
  47                 }
  48         }
  49 }
  50
  51 void
  52 printtimeshort(FILE *fp, const git_time *intime)
  53 {
  54         struct tm *intm;
  55         time_t t;
  56         char out[32];
  57
  58         t = (time_t)intime->time;
  59         if (!(intm = gmtime(&t)))
  60                 return;
  61         strftime(out, sizeof(out), "%Y-%m-%d %H:%M", intm);
  62         fputs(out, fp);
  63 }
  64
  65 int
  66 writeheader(FILE *fp)
  67 {
  68         fputs("<!DOCTYPE html>\n"
  69                 "<html dir=\"ltr\" lang=\"en\">\n<head>\n"
  70                 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
  71                 "<meta http-equiv=\"Content-Language\" content=\"en\" />\n<title>", fp);
  72         xmlencode(fp, description, strlen(description));
  73         fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath);
  74         fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath);
  75         fputs("</head>\n<body>\n", fp);
  76         fprintf(fp, "<table>\n<tr><td><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></td>\n"
  77                 "<td><h1>%s</h1><span class=\"desc\">%s</span></td></tr><tr><td></td><td>\n",
  78                 relpath, name, description);
  79         fputs("</td></tr>\n</table>\n<hr/>\n<div id=\"content\">\n"
  80               "<table id=\"index\"><thead>\n"
  81               "<tr><td>Name</td><td>Description</td><td>Owner</td><td>Last commit</td></tr>"
  82               "</thead><tbody>\n", fp);
  83
  84         return 0;
  85 }
  86
  87 int
  88 writefooter(FILE *fp)
  89 {
  90         return !fputs("</tbody>\n</table>\n</div>\n</body>\n</html>\n", fp);
  91 }
  92
  93 int
  94 writelog(FILE *fp)
  95 {
  96         git_commit *commit = NULL;
  97         const git_signature *author;
  98         git_revwalk *w = NULL;
  99         git_oid id;
 100         char *stripped_name = NULL, *p;
 101         int ret = 0;
 102
 103         git_revwalk_new(&w, repo);
 104         git_revwalk_push_head(w);
 105         git_revwalk_sorting(w, GIT_SORT_TIME);
 106         git_revwalk_simplify_first_parent(w);
 107
 108         if (git_revwalk_next(&id, w) ||
 109             git_commit_lookup(&commit, repo, &id)) {
 110                 ret = -1;
 111                 goto err;
 112         }
 113
 114         author = git_commit_author(commit);
 115
 116         /* strip .git suffix */
 117         if (!(stripped_name = strdup(name)))
 118                 err(1, "strdup");
 119         if ((p = strrchr(stripped_name, '.')))
 120                 if (!strcmp(p, ".git"))
 121                         *p = '\0';
 122
 123         fputs("<tr><td><a href=\"", fp);
 124         xmlencode(fp, stripped_name, strlen(stripped_name));
 125         fputs("/log.html\">", fp);
 126         xmlencode(fp, stripped_name, strlen(stripped_name));
 127         fputs("</a></td><td>", fp);
 128         xmlencode(fp, description, strlen(description));
 129         fputs("</td><td>", fp);
 130         xmlencode(fp, owner, strlen(owner));
 131         fputs("</td><td>", fp);
 132         if (author)
 133                 printtimeshort(fp, &(author->when));
 134         fputs("</td></tr>", fp);
 135
 136         git_commit_free(commit);
 137 err:
 138         git_revwalk_free(w);
 139         free(stripped_name);
 140
 141         return ret;
 142 }
 143
 144 void
 145 joinpath(char *buf, size_t bufsiz, const char *path, const char *path2)
 146 {
 147         int r;
 148
 149         r = snprintf(buf, bufsiz, "%s%s%s",
 150                 repodir, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
 151         if (r == -1 || (size_t)r >= bufsiz)
 152                 errx(1, "path truncated: '%s%s%s'",
 153                         path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
 154 }
 155
 156 int
 157 main(int argc, char *argv[])
 158 {
 159         const git_error *e = NULL;
 160         FILE *fp;
 161         char path[PATH_MAX], repodirabs[PATH_MAX + 1];
 162         int i, ret = 0;
 163
 164         if (pledge("stdio rpath", NULL) == -1)
 165                 err(1, "pledge");
 166
 167         if (argc < 2) {
 168                 fprintf(stderr, "%s [repodir...]\n", argv[0]);
 169                 return 1;
 170         }
 171         git_libgit2_init();
 172
 173         writeheader(stdout);
 174
 175         for (i = 1; i < argc; i++) {
 176                 repodir = argv[i];
 177                 if (!realpath(repodir, repodirabs))
 178                         err(1, "realpath");
 179
 180                 if (git_repository_open_ext(&repo, repodir,
 181                     GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) {
 182                         e = giterr_last();
 183                         fprintf(stderr, "%s: %s\n", argv[0], e->message);
 184                         ret = 1;
 185                         continue;
 186                 }
 187
 188                 /* use directory name as name */
 189                 if ((name = strrchr(repodirabs, '/')))
 190                         name++;
 191                 else
 192                         name = "";
 193
 194                 /* read description or .git/description */
 195                 joinpath(path, sizeof(path), repodir, "description");
 196                 if (!(fp = fopen(path, "r"))) {
 197                         joinpath(path, sizeof(path), repodir, ".git/description");
 198                         fp = fopen(path, "r");
 199                 }
 200                 description[0] = '\0';
 201                 if (fp) {
 202                         if (!fgets(description, sizeof(description), fp))
 203                                 description[0] = '\0';
 204                         fclose(fp);
 205                 }
 206
 207                 /* read owner or .git/owner */
 208                 joinpath(path, sizeof(path), repodir, "owner");
 209                 if (!(fp = fopen(path, "r"))) {
 210                         joinpath(path, sizeof(path), repodir, ".git/owner");
 211                         fp = fopen(path, "r");
 212                 }
 213                 owner[0] = '\0';
 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 }