+static int cmp_repos(const void *a, const void *b)
+{
+ const struct cgit_repo *ra = a, *rb = b;
+ return strcmp(ra->url, rb->url);
+}
+
+static char *build_snapshot_setting(int bitmap)
+{
+ const struct cgit_snapshot_format *f;
+ char *result = xstrdup("");
+ char *tmp;
+ int len;
+
+ for (f = cgit_snapshot_formats; f->suffix; f++) {
+ if (f->bit & bitmap) {
+ tmp = result;
+ result = xstrdup(fmt("%s%s ", tmp, f->suffix));
+ free(tmp);
+ }
+ }
+ len = strlen(result);
+ if (len)
+ result[len - 1] = '\0';
+ return result;
+}
+
+static char *get_first_line(char *txt)
+{
+ char *t = xstrdup(txt);
+ char *p = strchr(t, '\n');
+ if (p)
+ *p = '\0';
+ return t;
+}
+
+static void print_repo(FILE *f, struct cgit_repo *repo)
+{
+ fprintf(f, "repo.url=%s\n", repo->url);
+ fprintf(f, "repo.name=%s\n", repo->name);
+ fprintf(f, "repo.path=%s\n", repo->path);
+ if (repo->owner)
+ fprintf(f, "repo.owner=%s\n", repo->owner);
+ if (repo->desc) {
+ char *tmp = get_first_line(repo->desc);
+ fprintf(f, "repo.desc=%s\n", tmp);
+ free(tmp);
+ }
+ if (repo->readme)
+ fprintf(f, "repo.readme=%s\n", repo->readme);
+ if (repo->defbranch)
+ fprintf(f, "repo.defbranch=%s\n", repo->defbranch);
+ if (repo->module_link)
+ fprintf(f, "repo.module-link=%s\n", repo->module_link);
+ if (repo->section)
+ fprintf(f, "repo.section=%s\n", repo->section);
+ if (repo->clone_url)
+ fprintf(f, "repo.clone-url=%s\n", repo->clone_url);
+ fprintf(f, "repo.enable-commit-graph=%d\n",
+ repo->enable_commit_graph);
+ fprintf(f, "repo.enable-log-filecount=%d\n",
+ repo->enable_log_filecount);
+ fprintf(f, "repo.enable-log-linecount=%d\n",
+ repo->enable_log_linecount);
+ if (repo->about_filter && repo->about_filter != ctx.cfg.about_filter)
+ fprintf(f, "repo.about-filter=%s\n", repo->about_filter->cmd);
+ if (repo->commit_filter && repo->commit_filter != ctx.cfg.commit_filter)
+ fprintf(f, "repo.commit-filter=%s\n", repo->commit_filter->cmd);
+ if (repo->source_filter && repo->source_filter != ctx.cfg.source_filter)
+ fprintf(f, "repo.source-filter=%s\n", repo->source_filter->cmd);
+ if (repo->snapshots != ctx.cfg.snapshots) {
+ char *tmp = build_snapshot_setting(repo->snapshots);
+ fprintf(f, "repo.snapshots=%s\n", tmp);
+ free(tmp);
+ }
+ if (repo->max_stats != ctx.cfg.max_stats)
+ fprintf(f, "repo.max-stats=%s\n",
+ cgit_find_stats_periodname(repo->max_stats));
+ fprintf(f, "\n");
+}
+
+static void print_repolist(FILE *f, struct cgit_repolist *list, int start)
+{
+ int i;
+
+ for (i = start; i < list->count; i++)
+ print_repo(f, &list->repos[i]);
+}
+
+/* Scan 'path' for git repositories, save the resulting repolist in 'cached_rc'
+ * and return 0 on success.
+ */
+static int generate_cached_repolist(const char *path, const char *cached_rc)
+{
+ char *locked_rc;
+ int idx;
+ FILE *f;
+
+ locked_rc = xstrdup(fmt("%s.lock", cached_rc));
+ f = fopen(locked_rc, "wx");
+ if (!f) {
+ /* Inform about the error unless the lockfile already existed,
+ * since that only means we've got concurrent requests.
+ */
+ if (errno != EEXIST)
+ fprintf(stderr, "[cgit] Error opening %s: %s (%d)\n",
+ locked_rc, strerror(errno), errno);
+ return errno;
+ }
+ idx = cgit_repolist.count;
+ if (ctx.cfg.project_list)
+ scan_projects(path, ctx.cfg.project_list, repo_config);
+ else
+ scan_tree(path, repo_config);
+ print_repolist(f, &cgit_repolist, idx);
+ if (rename(locked_rc, cached_rc))
+ fprintf(stderr, "[cgit] Error renaming %s to %s: %s (%d)\n",
+ locked_rc, cached_rc, strerror(errno), errno);
+ fclose(f);
+ return 0;
+}
+
+static void process_cached_repolist(const char *path)
+{
+ struct stat st;
+ char *cached_rc;
+ time_t age;
+ unsigned long hash;
+
+ hash = hash_str(path);
+ if (ctx.cfg.project_list)
+ hash += hash_str(ctx.cfg.project_list);
+ cached_rc = xstrdup(fmt("%s/rc-%8lx", ctx.cfg.cache_root, hash));
+
+ if (stat(cached_rc, &st)) {
+ /* Nothing is cached, we need to scan without forking. And
+ * if we fail to generate a cached repolist, we need to
+ * invoke scan_tree manually.
+ */
+ if (generate_cached_repolist(path, cached_rc)) {
+ if (ctx.cfg.project_list)
+ scan_projects(path, ctx.cfg.project_list,
+ repo_config);
+ else
+ scan_tree(path, repo_config);
+ }
+ return;
+ }
+
+ parse_configfile(cached_rc, config_cb);
+
+ /* If the cached configfile hasn't expired, lets exit now */
+ age = time(NULL) - st.st_mtime;
+ if (age <= (ctx.cfg.cache_scanrc_ttl * 60))
+ return;
+
+ /* The cached repolist has been parsed, but it was old. So lets
+ * rescan the specified path and generate a new cached repolist
+ * in a child-process to avoid latency for the current request.
+ */
+ if (fork())
+ return;
+
+ exit(generate_cached_repolist(path, cached_rc));
+}
+
git.ckatri.com / cgit.git / blobdiff