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 #ifndef USE_PLEDGE
  27 int
  28 pledge(const char *promises, const char *paths[])
  29 {
  30         return 0;
  31 }
  32 #endif
  33
  34 /* Escape characters below as HTML 2.0 / XML 1.0. */
  35 void
  36 xmlencode(FILE *fp, const char *s, size_t len)
  37 {
  38         size_t i;
  39
  40         for (i = 0; *s && i < len; s++, i++) {
  41                 switch(*s) {
  42                 case '<':  fputs("&lt;",   fp); break;
  43                 case '>':  fputs("&gt;",   fp); break;
  44                 case '\'': fputs("&apos;", fp); break;
  45                 case '&':  fputs("&amp;",  fp); break;
  46                 case '"':  fputs("&quot;", fp); break;
  47                 default:   fputc(*s, fp);
  48                 }
  49         }
  50 }
  51
  52 void
  53 printtimeshort(FILE *fp, const git_time *intime)
  54 {
  55         struct tm *intm;
  56         time_t t;
  57         char out[32];
  58
  59         t = (time_t)intime->time;
  60         if (!(intm = gmtime(&t)))
  61                 return;
  62         strftime(out, sizeof(out), "%Y-%m-%d %H:%M", intm);
  63         fputs(out, fp);
  64 }
  65
  66 int
  67 writeheader(FILE *fp)
  68 {
  69         fputs("<!DOCTYPE html>\n"
  70                 "<html dir=\"ltr\" lang=\"en\">\n<head>\n"
  71                 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
  72                 "<meta http-equiv=\"Content-Language\" content=\"en\" />\n<title>", fp);
  73         xmlencode(fp, description, strlen(description));
  74         fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath);
  75         fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath);
  76         fputs("</head>\n<body>\n", fp);
  77         fprintf(fp, "<table>\n<tr><td><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></td>\n"
  78                 "<td><h1>%s</h1><span class=\"desc\">%s</span></td></tr><tr><td></td><td>\n",
  79                 relpath, name, description);
  80         fputs("</td></tr>\n</table>\n<hr/>\n<div id=\"content\">\n"
  81               "<table id=\"index\"><thead>\n"
  82               "<tr><td>Name</td><td>Description</td><td>Owner</td><td>Last commit</td></tr>"
  83               "</thead><tbody>\n", fp);
  84
  85         return 0;
  86 }
  87
  88 int
  89 writefooter(FILE *fp)
  90 {
  91         return !fputs("</tbody>\n</table>\n</div>\n</body>\n</html>\n", fp);
  92 }
  93
  94 int
  95 writelog(FILE *fp)
  96 {
  97         git_commit *commit = NULL;
  98         const git_signature *author;
  99         git_revwalk *w = NULL;
 100         git_oid id;
 101         char *stripped_name = NULL, *p;
 102         int ret = 0;
 103
 104         git_revwalk_new(&w, repo);
 105         git_revwalk_push_head(w);
 106         git_revwalk_sorting(w, GIT_SORT_TIME);
 107         git_revwalk_simplify_first_parent(w);
 108
 109         if (git_revwalk_next(&id, w) ||
 110             git_commit_lookup(&commit, repo, &id)) {
 111                 ret = -1;
 112                 goto err;
 113         }
 114
 115         author = git_commit_author(commit);
 116
 117         /* strip .git suffix */
 118         if (!(stripped_name = strdup(name)))
 119                 err(1, "strdup");
 120         if ((p = strrchr(stripped_name, '.')))
 121                 if (!strcmp(p, ".git"))
 122                         *p = '\0';
 123
 124         fputs("<tr><td><a href=\"", fp);
 125         xmlencode(fp, stripped_name, strlen(stripped_name));
 126         fputs("/log.html\">", fp);
 127         xmlencode(fp, stripped_name, strlen(stripped_name));
 128         fputs("</a></td><td>", fp);
 129         xmlencode(fp, description, strlen(description));
 130         fputs("</td><td>", fp);
 131         xmlencode(fp, owner, strlen(owner));
 132         fputs("</td><td>", fp);
 133         if (author)
 134                 printtimeshort(fp, &(author->when));
 135         fputs("</td></tr>", fp);
 136
 137         git_commit_free(commit);
 138 err:
 139         git_revwalk_free(w);
 140         free(stripped_name);
 141
 142         return ret;
 143 }
 144
 145 void
 146 joinpath(char *buf, size_t bufsiz, const char *path, const char *path2)
 147 {
 148         int r;
 149
 150         r = snprintf(buf, bufsiz, "%s%s%s",
 151                 repodir, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
 152         if (r == -1 || (size_t)r >= bufsiz)
 153                 errx(1, "path truncated: '%s%s%s'",
 154                         path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
 155 }
 156
 157 int
 158 main(int argc, char *argv[])
 159 {
 160         const git_error *e = NULL;
 161         FILE *fp;
 162         char path[PATH_MAX], repodirabs[PATH_MAX + 1];
 163         int i, ret = 0;
 164
 165         if (pledge("stdio rpath", NULL) == -1)
 166                 err(1, "pledge");
 167
 168         if (argc < 2) {
 169                 fprintf(stderr, "%s [repodir...]\n", argv[0]);
 170                 return 1;
 171         }
 172         git_libgit2_init();
 173
 174         writeheader(stdout);
 175
 176         for (i = 1; i < argc; i++) {
 177                 repodir = argv[i];
 178                 if (!realpath(repodir, repodirabs))
 179                         err(1, "realpath");
 180
 181                 if (git_repository_open_ext(&repo, repodir,
 182                     GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) {
 183                         e = giterr_last();
 184                         fprintf(stderr, "%s: %s\n", argv[0], e->message);
 185                         ret = 1;
 186                         continue;
 187                 }
 188
 189                 /* use directory name as name */
 190                 if ((name = strrchr(repodirabs, '/')))
 191                         name++;
 192                 else
 193                         name = "";
 194
 195                 /* read description or .git/description */
 196                 joinpath(path, sizeof(path), repodir, "description");
 197                 if (!(fp = fopen(path, "r"))) {
 198                         joinpath(path, sizeof(path), repodir, ".git/description");
 199                         fp = fopen(path, "r");
 200                 }
 201                 description[0] = '\0';
 202                 if (fp) {
 203                         if (!fgets(description, sizeof(description), fp))
 204                                 description[0] = '\0';
 205                         fclose(fp);
 206                 }
 207
 208                 /* read owner or .git/owner */
 209                 joinpath(path, sizeof(path), repodir, "owner");
 210                 if (!(fp = fopen(path, "r"))) {
 211                         joinpath(path, sizeof(path), repodir, ".git/owner");
 212                         fp = fopen(path, "r");
 213                 }
 214                 owner[0] = '\0';
 215                 if (fp) {
 216                         if (!fgets(owner, sizeof(owner), fp))
 217                                 owner[0] = '\0';
 218                         owner[strcspn(owner, "\n")] = '\0';
 219                         fclose(fp);
 220                 }
 221                 writelog(stdout);
 222         }
 223         writefooter(stdout);
 224
 225         /* cleanup */
 226         git_repository_free(repo);
 227         git_libgit2_shutdown();
 228
 229         return ret;
 230 }