src/stagit-index.c

   1 #include <err.h>
   2 #include <limits.h>
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <string.h>
   6 #include <time.h>
   7 #include <unistd.h>
   8
   9 #include <git2.h>
  10
  11 #include "cp.h"
  12
  13 static git_repository *repo;
  14
  15 static const char *relpath = "";
  16
  17 static char description[255] = "Repositories";
  18 static char *name = "";
  19 static char owner[255];
  20
  21 void
  22 joinpath(char *buf, size_t bufsiz, const char *path, const char *path2)
  23 {
  24         int r;
  25
  26         r = snprintf(buf, bufsiz, "%s%s%s",
  27                 path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
  28         if (r < 0 || (size_t)r >= bufsiz)
  29                 errx(1, "path truncated: '%s%s%s'",
  30                         path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
  31 }
  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("&#39;" , 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 void
  66 writeheader(FILE *fp)
  67 {
  68         fputs("<!DOCTYPE html>\n"
  69                 "<html>\n<head>\n"
  70                 "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
  71                 "<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.min.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><span class=\"desc\">", relpath);
  78         xmlencode(fp, description, strlen(description));
  79         fputs("</span></td></tr><tr><td></td><td>\n"
  80                 "</td></tr>\n</table>\n<hr/>\n<div id=\"content\">\n"
  81                 "<table id=\"index\"><thead>\n"
  82                 "<tr><td><b>Name</b></td><td><b>Description</b></td><td><b>Owner</b></td>"
  83                 "<td><b>Last commit</b></td></tr>"
  84                 "</thead><tbody>\n", fp);
  85 }
  86
  87 void
  88 writefooter(FILE *fp)
  89 {
  90         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_simplify_first_parent(w);
 106
 107         if (git_revwalk_next(&id, w) ||
 108             git_commit_lookup(&commit, repo, &id)) {
 109                 ret = -1;
 110                 goto err;
 111         }
 112
 113         author = git_commit_author(commit);
 114
 115         /* strip .git suffix */
 116         if (!(stripped_name = strdup(name)))
 117                 err(1, "strdup");
 118         if ((p = strrchr(stripped_name, '.')))
 119                 if (!strcmp(p, ".git"))
 120                         *p = '\0';
 121
 122         fputs("<tr><td><a href=\"", fp);
 123         xmlencode(fp, stripped_name, strlen(stripped_name));
 124         fputs("/log.html\">", fp);
 125         xmlencode(fp, stripped_name, strlen(stripped_name));
 126         fputs("</a></td><td>", fp);
 127         xmlencode(fp, description, strlen(description));
 128         fputs("</td><td>", fp);
 129         xmlencode(fp, owner, strlen(owner));
 130         fputs("</td><td>", fp);
 131         if (author)
 132                 printtimeshort(fp, &(author->when));
 133         fputs("</td></tr>", fp);
 134
 135         git_commit_free(commit);
 136 err:
 137         git_revwalk_free(w);
 138         free(stripped_name);
 139
 140         return ret;
 141 }
 142
 143 int
 144 main(int argc, char *argv[])
 145 {
 146         FILE *fp;
 147         char path[PATH_MAX], repodirabs[PATH_MAX + 1];
 148         const char *repodir;
 149         int i, ret = 0;
 150
 151         if (argc < 2) {
 152                 fprintf(stderr, "%s [repodir...]\n", argv[0]);
 153                 return 1;
 154         }
 155
 156         git_libgit2_init();
 157
 158 #ifdef __OpenBSD__
 159         for (i = 1; i < argc; i++)
 160                 if (unveil(argv[i], "r") == -1)
 161                         err(1, "unveil: %s", argv[i]);
 162
 163         if (pledge("stdio rpath", NULL) == -1)
 164                 err(1, "pledge");
 165 #endif
 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                         fprintf(stderr, "%s: cannot open repository\n", argv[0]);
 177                         ret = 1;
 178                         continue;
 179                 }
 180
 181                 /* use directory name as name */
 182                 if ((name = strrchr(repodirabs, '/')))
 183                         name++;
 184                 else
 185                         name = "";
 186
 187                 /* read description or .git/description */
 188                 joinpath(path, sizeof(path), repodir, "description");
 189                 if (!(fp = fopen(path, "r"))) {
 190                         joinpath(path, sizeof(path), repodir, ".git/description");
 191                         fp = fopen(path, "r");
 192                 }
 193                 description[0] = '\0';
 194                 if (fp) {
 195                         if (!fgets(description, sizeof(description), fp))
 196                                 description[0] = '\0';
 197                         fclose(fp);
 198                 }
 199
 200                 /* read owner or .git/owner */
 201                 joinpath(path, sizeof(path), repodir, "owner");
 202                 if (!(fp = fopen(path, "r"))) {
 203                         joinpath(path, sizeof(path), repodir, ".git/owner");
 204                         fp = fopen(path, "r");
 205                 }
 206                 owner[0] = '\0';
 207                 if (fp) {
 208                         if (!fgets(owner, sizeof(owner), fp))
 209                                 owner[0] = '\0';
 210                         owner[strcspn(owner, "\n")] = '\0';
 211                         fclose(fp);
 212                 }
 213                 writelog(stdout);
 214         }
 215         writefooter(stdout);
 216
 217         /* copy css */
 218         char cwd[PATH_MAX];
 219         strcpy(cwd, getcwd(cwd, sizeof(cwd)));
 220         cp("/usr/local/share/stagit/style.min.css", strcat(cwd, "/style.min.css"));
 221
 222         /* cleanup */
 223         git_repository_free(repo);
 224         git_libgit2_shutdown();
 225
 226         return ret;
 227 }