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 #ifndef USE_PLEDGE
  25 #define pledge(p1,p2) 0
  26 #endif
  27
  28 void
  29 joinpath(char *buf, size_t bufsiz, const char *path, const char *path2)
  30 {
  31         int r;
  32
  33         r = snprintf(buf, bufsiz, "%s%s%s",
  34                 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
  35         if (r == -1 || (size_t)r >= bufsiz)
  36                 errx(1, "path truncated: '%s%s%s'",
  37                         path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
  38 }
  39
  40 /* Escape characters below as HTML 2.0 / XML 1.0. */
  41 void
  42 xmlencode(FILE *fp, const char *s, size_t len)
  43 {
  44         size_t i;
  45
  46         for (i = 0; *s && i < len; s++, i++) {
  47                 switch(*s) {
  48                 case '<':  fputs("&lt;",   fp); break;
  49                 case '>':  fputs("&gt;",   fp); break;
  50                 case '\'': fputs("&apos;", fp); break;
  51                 case '&':  fputs("&amp;",  fp); break;
  52                 case '"':  fputs("&quot;", fp); break;
  53                 default:   fputc(*s, fp);
  54                 }
  55         }
  56 }
  57
  58 void
  59 printtimeshort(FILE *fp, const git_time *intime)
  60 {
  61         struct tm *intm;
  62         time_t t;
  63         char out[32];
  64
  65         t = (time_t)intime->time;
  66         if (!(intm = gmtime(&t)))
  67                 return;
  68         strftime(out, sizeof(out), "%Y-%m-%d %H:%M", intm);
  69         fputs(out, fp);
  70 }
  71
  72 void
  73 writeheader(FILE *fp)
  74 {
  75         fputs("<!DOCTYPE html>\n"
  76                 "<html dir=\"ltr\" lang=\"en\">\n<head>\n"
  77                 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
  78                 "<meta http-equiv=\"Content-Language\" content=\"en\" />\n<title>", fp);
  79         xmlencode(fp, description, strlen(description));
  80         fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath);
  81         fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath);
  82         fputs("</head>\n<body>\n", fp);
  83         fprintf(fp, "<table>\n<tr><td><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></td>\n"
  84                 "<td><h1>%s</h1><span class=\"desc\">%s</span></td></tr><tr><td></td><td>\n",
  85                 relpath, name, description);
  86         fputs("</td></tr>\n</table>\n<hr/>\n<div id=\"content\">\n"
  87               "<table id=\"index\"><thead>\n"
  88               "<tr><td>Name</td><td>Description</td><td>Owner</td><td>Last commit</td></tr>"
  89               "</thead><tbody>\n", fp);
  90 }
  91
  92 void
  93 writefooter(FILE *fp)
  94 {
  95         fputs("</tbody>\n</table>\n</div>\n</body>\n</html>\n", fp);
  96 }
  97
  98 int
  99 writelog(FILE *fp)
 100 {
 101         git_commit *commit = NULL;
 102         const git_signature *author;
 103         git_revwalk *w = NULL;
 104         git_oid id;
 105         char *stripped_name = NULL, *p;
 106         int ret = 0;
 107
 108         git_revwalk_new(&w, repo);
 109         git_revwalk_push_head(w);
 110         git_revwalk_sorting(w, GIT_SORT_TIME);
 111         git_revwalk_simplify_first_parent(w);
 112
 113         if (git_revwalk_next(&id, w) ||
 114             git_commit_lookup(&commit, repo, &id)) {
 115                 ret = -1;
 116                 goto err;
 117         }
 118
 119         author = git_commit_author(commit);
 120
 121         /* strip .git suffix */
 122         if (!(stripped_name = strdup(name)))
 123                 err(1, "strdup");
 124         if ((p = strrchr(stripped_name, '.')))
 125                 if (!strcmp(p, ".git"))
 126                         *p = '\0';
 127
 128         fputs("<tr><td><a href=\"", fp);
 129         xmlencode(fp, stripped_name, strlen(stripped_name));
 130         fputs("/log.html\">", fp);
 131         xmlencode(fp, stripped_name, strlen(stripped_name));
 132         fputs("</a></td><td>", fp);
 133         xmlencode(fp, description, strlen(description));
 134         fputs("</td><td>", fp);
 135         xmlencode(fp, owner, strlen(owner));
 136         fputs("</td><td>", fp);
 137         if (author)
 138                 printtimeshort(fp, &(author->when));
 139         fputs("</td></tr>", fp);
 140
 141         git_commit_free(commit);
 142 err:
 143         git_revwalk_free(w);
 144         free(stripped_name);
 145
 146         return ret;
 147 }
 148
 149 int
 150 main(int argc, char *argv[])
 151 {
 152         const git_error *e = NULL;
 153         FILE *fp;
 154         char path[PATH_MAX], repodirabs[PATH_MAX + 1];
 155         const char *repodir;
 156         int i, ret = 0;
 157
 158         if (pledge("stdio rpath", NULL) == -1)
 159                 err(1, "pledge");
 160
 161         if (argc < 2) {
 162                 fprintf(stderr, "%s [repodir...]\n", argv[0]);
 163                 return 1;
 164         }
 165         git_libgit2_init();
 166
 167         writeheader(stdout);
 168
 169         for (i = 1; i < argc; i++) {
 170                 repodir = argv[i];
 171                 if (!realpath(repodir, repodirabs))
 172                         err(1, "realpath");
 173
 174                 if (git_repository_open_ext(&repo, repodir,
 175                     GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) {
 176                         e = giterr_last();
 177                         fprintf(stderr, "%s: %s\n", argv[0], e->message);
 178                         ret = 1;
 179                         continue;
 180                 }
 181
 182                 /* use directory name as name */
 183                 if ((name = strrchr(repodirabs, '/')))
 184                         name++;
 185                 else
 186                         name = "";
 187
 188                 /* read description or .git/description */
 189                 joinpath(path, sizeof(path), repodir, "description");
 190                 if (!(fp = fopen(path, "r"))) {
 191                         joinpath(path, sizeof(path), repodir, ".git/description");
 192                         fp = fopen(path, "r");
 193                 }
 194                 description[0] = '\0';
 195                 if (fp) {
 196                         if (!fgets(description, sizeof(description), fp))
 197                                 description[0] = '\0';
 198                         fclose(fp);
 199                 }
 200
 201                 /* read owner or .git/owner */
 202                 joinpath(path, sizeof(path), repodir, "owner");
 203                 if (!(fp = fopen(path, "r"))) {
 204                         joinpath(path, sizeof(path), repodir, ".git/owner");
 205                         fp = fopen(path, "r");
 206                 }
 207                 owner[0] = '\0';
 208                 if (fp) {
 209                         if (!fgets(owner, sizeof(owner), fp))
 210                                 owner[0] = '\0';
 211                         owner[strcspn(owner, "\n")] = '\0';
 212                         fclose(fp);
 213                 }
 214                 writelog(stdout);
 215         }
 216         writefooter(stdout);
 217
 218         /* cleanup */
 219         git_repository_free(repo);
 220         git_libgit2_shutdown();
 221
 222         return ret;
 223 }