Merge branch 'lh/repo-scan'

11 files changed, 330 insertions, 81 deletions

diff --git a/cache.h b/cache.h
index 66cc41f..ac9276b 100644
--- a/cache.h
+++ b/cache.h
@@ -23,13 +23,15 @@ typedef void (*cache_fill_fn)(void *cbdata);
  *   0 indicates success, everyting else is an error
  */
 extern int cache_process(int size, const char *path, const char *key, int ttl,
 			 cache_fill_fn fn, void *cbdata);
 
 
 /* List info about all cache entries on stdout */
 extern int cache_ls(const char *path);
 
 /* Print a message to stdout */
 extern void cache_log(const char *format, ...);
 
+extern unsigned long hash_str(const char *str);
+
 #endif /* CGIT_CACHE_H */
diff --git a/cgit.c b/cgit.c
index ec40e1f..bd37788 100644
--- a/cgit.c
+++ b/cgit.c
@@ -31,27 +31,76 @@ struct cgit_filter *new_filter(const char *cmd, int extra_args)
 
 	if (!cmd || !cmd[0])
 		return NULL;
 
 	f = xmalloc(sizeof(struct cgit_filter));
 	f->cmd = xstrdup(cmd);
 	f->argv = xmalloc((2 + extra_args) * sizeof(char *));
 	f->argv[0] = f->cmd;
 	f->argv[1] = NULL;
 	return f;
 }
 
+static void process_cached_repolist(const char *path);
+
+void repo_config(struct cgit_repo *repo, const char *name, const char *value)
+{
+	if (!strcmp(name, "name"))
+		repo->name = xstrdup(value);
+	else if (!strcmp(name, "clone-url"))
+		repo->clone_url = xstrdup(value);
+	else if (!strcmp(name, "desc"))
+		repo->desc = xstrdup(value);
+	else if (!strcmp(name, "owner"))
+		repo->owner = xstrdup(value);
+	else if (!strcmp(name, "defbranch"))
+		repo->defbranch = xstrdup(value);
+	else if (!strcmp(name, "snapshots"))
+		repo->snapshots = ctx.cfg.snapshots & cgit_parse_snapshots_mask(value);
+	else if (!strcmp(name, "enable-log-filecount"))
+		repo->enable_log_filecount = ctx.cfg.enable_log_filecount * atoi(value);
+	else if (!strcmp(name, "enable-log-linecount"))
+		repo->enable_log_linecount = ctx.cfg.enable_log_linecount * atoi(value);
+	else if (!strcmp(name, "max-stats"))
+		repo->max_stats = cgit_find_stats_period(value, NULL);
+	else if (!strcmp(name, "module-link"))
+		repo->module_link= xstrdup(value);
+	else if (!strcmp(name, "section"))
+		repo->section = xstrdup(value);
+	else if (!strcmp(name, "readme") && value != NULL) {
+		if (*value == '/')
+			ctx.repo->readme = xstrdup(value);
+		else
+			ctx.repo->readme = xstrdup(fmt("%s/%s", ctx.repo->path, value));
+	} else if (ctx.cfg.enable_filter_overrides) {
+		if (!strcmp(name, "about-filter"))
+			repo->about_filter = new_filter(value, 0);
+		else if (!strcmp(name, "commit-filter"))
+			repo->commit_filter = new_filter(value, 0);
+		else if (!strcmp(name, "source-filter"))
+			repo->source_filter = new_filter(value, 1);
+	}
+}
+
 void config_cb(const char *name, const char *value)
 {
-	if (!strcmp(name, "root-title"))
+	if (!strcmp(name, "section") || !strcmp(name, "repo.group"))
+		ctx.cfg.section = xstrdup(value);
+	else if (!strcmp(name, "repo.url"))
+		ctx.repo = cgit_add_repo(value);
+	else if (ctx.repo && !strcmp(name, "repo.path"))
+		ctx.repo->path = trim_end(value, '/');
+	else if (ctx.repo && !prefixcmp(name, "repo."))
+		repo_config(ctx.repo, name + 5, value);
+	else if (!strcmp(name, "root-title"))
 		ctx.cfg.root_title = xstrdup(value);
 	else if (!strcmp(name, "root-desc"))
 		ctx.cfg.root_desc = xstrdup(value);
 	else if (!strcmp(name, "root-readme"))
 		ctx.cfg.root_readme = xstrdup(value);
 	else if (!strcmp(name, "css"))
 		ctx.cfg.css = xstrdup(value);
 	else if (!strcmp(name, "favicon"))
 		ctx.cfg.favicon = xstrdup(value);
 	else if (!strcmp(name, "footer"))
 		ctx.cfg.footer = xstrdup(value);
 	else if (!strcmp(name, "head-include"))
@@ -71,118 +120,90 @@ void config_cb(const char *name, const char *value)
 	else if (!strcmp(name, "virtual-root")) {
 		ctx.cfg.virtual_root = trim_end(value, '/');
 		if (!ctx.cfg.virtual_root && (!strcmp(value, "/")))
 			ctx.cfg.virtual_root = "";
 	} else if (!strcmp(name, "nocache"))
 		ctx.cfg.nocache = atoi(value);
 	else if (!strcmp(name, "noplainemail"))
 		ctx.cfg.noplainemail = atoi(value);
 	else if (!strcmp(name, "noheader"))
 		ctx.cfg.noheader = atoi(value);
 	else if (!strcmp(name, "snapshots"))
 		ctx.cfg.snapshots = cgit_parse_snapshots_mask(value);
+	else if (!strcmp(name, "enable-filter-overrides"))
+		ctx.cfg.enable_filter_overrides = atoi(value);
 	else if (!strcmp(name, "enable-index-links"))
 		ctx.cfg.enable_index_links = atoi(value);
 	else if (!strcmp(name, "enable-log-filecount"))
 		ctx.cfg.enable_log_filecount = atoi(value);
 	else if (!strcmp(name, "enable-log-linecount"))
 		ctx.cfg.enable_log_linecount = atoi(value);
 	else if (!strcmp(name, "enable-tree-linenumbers"))
 		ctx.cfg.enable_tree_linenumbers = atoi(value);
 	else if (!strcmp(name, "max-stats"))
 		ctx.cfg.max_stats = cgit_find_stats_period(value, NULL);
 	else if (!strcmp(name, "cache-size"))
 		ctx.cfg.cache_size = atoi(value);
 	else if (!strcmp(name, "cache-root"))
 		ctx.cfg.cache_root = xstrdup(value);
 	else if (!strcmp(name, "cache-root-ttl"))
 		ctx.cfg.cache_root_ttl = atoi(value);
 	else if (!strcmp(name, "cache-repo-ttl"))
 		ctx.cfg.cache_repo_ttl = atoi(value);
+	else if (!strcmp(name, "cache-scanrc-ttl"))
+		ctx.cfg.cache_scanrc_ttl = atoi(value);
 	else if (!strcmp(name, "cache-static-ttl"))
 		ctx.cfg.cache_static_ttl = atoi(value);
 	else if (!strcmp(name, "cache-dynamic-ttl"))
 		ctx.cfg.cache_dynamic_ttl = atoi(value);
 	else if (!strcmp(name, "about-filter"))
 		ctx.cfg.about_filter = new_filter(value, 0);
 	else if (!strcmp(name, "commit-filter"))
 		ctx.cfg.commit_filter = new_filter(value, 0);
 	else if (!strcmp(name, "embedded"))
 		ctx.cfg.embedded = atoi(value);
 	else if (!strcmp(name, "max-message-length"))
 		ctx.cfg.max_msg_len = atoi(value);
 	else if (!strcmp(name, "max-repodesc-length"))
 		ctx.cfg.max_repodesc_len = atoi(value);
 	else if (!strcmp(name, "max-repo-count"))
 		ctx.cfg.max_repo_count = atoi(value);
 	else if (!strcmp(name, "max-commit-count"))
 		ctx.cfg.max_commit_count = atoi(value);
+	else if (!strcmp(name, "scan-path"))
+		if (!ctx.cfg.nocache && ctx.cfg.cache_size)
+			process_cached_repolist(value);
+		else
+			scan_tree(value, repo_config);
 	else if (!strcmp(name, "source-filter"))
 		ctx.cfg.source_filter = new_filter(value, 1);
 	else if (!strcmp(name, "summary-log"))
 		ctx.cfg.summary_log = atoi(value);
 	else if (!strcmp(name, "summary-branches"))
 		ctx.cfg.summary_branches = atoi(value);
 	else if (!strcmp(name, "summary-tags"))
 		ctx.cfg.summary_tags = atoi(value);
 	else if (!strcmp(name, "agefile"))
 		ctx.cfg.agefile = xstrdup(value);
 	else if (!strcmp(name, "renamelimit"))
 		ctx.cfg.renamelimit = atoi(value);
 	else if (!strcmp(name, "robots"))
 		ctx.cfg.robots = xstrdup(value);
 	else if (!strcmp(name, "clone-prefix"))
 		ctx.cfg.clone_prefix = xstrdup(value);
 	else if (!strcmp(name, "local-time"))
 		ctx.cfg.local_time = atoi(value);
 	else if (!prefixcmp(name, "mimetype."))
 		add_mimetype(name + 9, value);
-	else if (!strcmp(name, "repo.group"))
-		ctx.cfg.repo_group = xstrdup(value);
-	else if (!strcmp(name, "repo.url"))
-		ctx.repo = cgit_add_repo(value);
-	else if (!strcmp(name, "repo.name"))
-		ctx.repo->name = xstrdup(value);
-	else if (ctx.repo && !strcmp(name, "repo.path"))
-		ctx.repo->path = trim_end(value, '/');
-	else if (ctx.repo && !strcmp(name, "repo.clone-url"))
-		ctx.repo->clone_url = xstrdup(value);
-	else if (ctx.repo && !strcmp(name, "repo.desc"))
-		ctx.repo->desc = xstrdup(value);
-	else if (ctx.repo && !strcmp(name, "repo.owner"))
-		ctx.repo->owner = xstrdup(value);
-	else if (ctx.repo && !strcmp(name, "repo.defbranch"))
-		ctx.repo->defbranch = xstrdup(value);
-	else if (ctx.repo && !strcmp(name, "repo.snapshots"))
-		ctx.repo->snapshots = ctx.cfg.snapshots & cgit_parse_snapshots_mask(value); /* XXX: &? */
-	else if (ctx.repo && !strcmp(name, "repo.enable-log-filecount"))
-		ctx.repo->enable_log_filecount = ctx.cfg.enable_log_filecount * atoi(value);
-	else if (ctx.repo && !strcmp(name, "repo.enable-log-linecount"))
-		ctx.repo->enable_log_linecount = ctx.cfg.enable_log_linecount * atoi(value);
-	else if (ctx.repo && !strcmp(name, "repo.max-stats"))
-		ctx.repo->max_stats = cgit_find_stats_period(value, NULL);
-	else if (ctx.repo && !strcmp(name, "repo.module-link"))
-		ctx.repo->module_link= xstrdup(value);
-	else if (ctx.repo && !strcmp(name, "repo.about-filter"))
-		ctx.repo->about_filter = new_filter(value, 0);
-	else if (ctx.repo && !strcmp(name, "repo.commit-filter"))
-		ctx.repo->commit_filter = new_filter(value, 0);
-	else if (ctx.repo && !strcmp(name, "repo.source-filter"))
-		ctx.repo->source_filter = new_filter(value, 1);
-	else if (ctx.repo && !strcmp(name, "repo.readme") && value != NULL) {
-		if (*value == '/')
-			ctx.repo->readme = xstrdup(value);
-		else
-			ctx.repo->readme = xstrdup(fmt("%s/%s", ctx.repo->path, value));
-	} else if (!strcmp(name, "include"))
+	else if (!strcmp(name, "include"))
 		parse_configfile(value, config_cb);
 }
 
 static void querystring_cb(const char *name, const char *value)
 {
 	if (!value)
 		value = "";
 
 	if (!strcmp(name,"r")) {
 		ctx.qry.repo = xstrdup(value);
 		ctx.repo = cgit_get_repoinfo(value);
 	} else if (!strcmp(name, "p")) {
@@ -227,41 +248,43 @@ char *xstrdupn(const char *str)
 
 static void prepare_context(struct cgit_context *ctx)
 {
 	memset(ctx, 0, sizeof(ctx));
 	ctx->cfg.agefile = "info/web/last-modified";
 	ctx->cfg.nocache = 0;
 	ctx->cfg.cache_size = 0;
 	ctx->cfg.cache_dynamic_ttl = 5;
 	ctx->cfg.cache_max_create_time = 5;
 	ctx->cfg.cache_repo_ttl = 5;
 	ctx->cfg.cache_root = CGIT_CACHE_ROOT;
 	ctx->cfg.cache_root_ttl = 5;
+	ctx->cfg.cache_scanrc_ttl = 15;
 	ctx->cfg.cache_static_ttl = -1;
 	ctx->cfg.css = "/cgit.css";
 	ctx->cfg.logo = "/cgit.png";
 	ctx->cfg.local_time = 0;
 	ctx->cfg.enable_tree_linenumbers = 1;
 	ctx->cfg.max_repo_count = 50;
 	ctx->cfg.max_commit_count = 50;
 	ctx->cfg.max_lock_attempts = 5;
 	ctx->cfg.max_msg_len = 80;
 	ctx->cfg.max_repodesc_len = 80;
 	ctx->cfg.max_stats = 0;
 	ctx->cfg.module_link = "./?repo=%s&page=commit&id=%s";
 	ctx->cfg.renamelimit = -1;
 	ctx->cfg.robots = "index, nofollow";
 	ctx->cfg.root_title = "Git repository browser";
 	ctx->cfg.root_desc = "a fast webinterface for the git dscm";
 	ctx->cfg.script_name = CGIT_SCRIPT_NAME;
+	ctx->cfg.section = "";
 	ctx->cfg.summary_branches = 10;
 	ctx->cfg.summary_log = 10;
 	ctx->cfg.summary_tags = 10;
 	ctx->env.cgit_config = xstrdupn(getenv("CGIT_CONFIG"));
 	ctx->env.http_host = xstrdupn(getenv("HTTP_HOST"));
 	ctx->env.https = xstrdupn(getenv("HTTPS"));
 	ctx->env.no_http = xstrdupn(getenv("NO_HTTP"));
 	ctx->env.path_info = xstrdupn(getenv("PATH_INFO"));
 	ctx->env.query_string = xstrdupn(getenv("QUERY_STRING"));
 	ctx->env.request_method = xstrdupn(getenv("REQUEST_METHOD"));
 	ctx->env.script_name = xstrdupn(getenv("SCRIPT_NAME"));
 	ctx->env.server_name = xstrdupn(getenv("SERVER_NAME"));
@@ -408,46 +431,169 @@ static void process_request(void *cbdata)
 	cmd->fn(ctx);
 
 	if (cmd->want_layout)
 		cgit_print_docend();
 }
 
 int cmp_repos(const void *a, const void *b)
 {
 	const struct cgit_repo *ra = a, *rb = b;
 	return strcmp(ra->url, rb->url);
 }
 
-void print_repo(struct cgit_repo *repo)
+char *build_snapshot_setting(int bitmap)
 {
-	printf("repo.url=%s\n", repo->url);
-	printf("repo.name=%s\n", repo->name);
-	printf("repo.path=%s\n", repo->path);
+	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;
+}
+
+char *get_first_line(char *txt)
+{
+	char *t = xstrdup(txt);
+	char *p = strchr(t, '\n');
+	if (p)
+		*p = '\0';
+	return t;
+}
+
+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)
-		printf("repo.owner=%s\n", repo->owner);
-	if (repo->desc)
-		printf("repo.desc=%s\n", repo->desc);
+		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)
-		printf("repo.readme=%s\n", repo->readme);
-	printf("\n");
+		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-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");
+}
+
+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]);
 }
 
-void print_repolist(struct cgit_repolist *list)
+/* 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)
 {
-	int i;
+	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;
+	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;
 
-	for(i = 0; i < list->count; i++)
-		print_repo(&list->repos[i]);
+	cached_rc = xstrdup(fmt("%s/rc-%8x", ctx.cfg.cache_root,
+		hash_str(path)));
+
+	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))
+			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));
+}
 
 static void cgit_parse_args(int argc, const char **argv)
 {
 	int i;
 	int scan = 0;
 
 	for (i = 1; i < argc; i++) {
 		if (!strncmp(argv[i], "--cache=", 8)) {
 			ctx.cfg.cache_root = xstrdup(argv[i]+8);
 		}
 		if (!strcmp(argv[i], "--nocache")) {
 			ctx.cfg.nocache = 1;
@@ -466,33 +612,44 @@ static void cgit_parse_args(int argc, const char **argv)
 		}
 		if (!strncmp(argv[i], "--head=", 7)) {
 			ctx.qry.head = xstrdup(argv[i]+7);
 			ctx.qry.has_symref = 1;
 		}
 		if (!strncmp(argv[i], "--sha1=", 7)) {
 			ctx.qry.sha1 = xstrdup(argv[i]+7);
 			ctx.qry.has_sha1 = 1;
 		}
 		if (!strncmp(argv[i], "--ofs=", 6)) {
 			ctx.qry.ofs = atoi(argv[i]+6);
 		}
-		if (!strncmp(argv[i], "--scan-tree=", 12)) {
+		if (!strncmp(argv[i], "--scan-tree=", 12) ||
+		    !strncmp(argv[i], "--scan-path=", 12)) {
+			/* HACK: the global snapshot bitmask defines the
+			 * set of allowed snapshot formats, but the config
+			 * file hasn't been parsed yet so the mask is
+			 * currently 0. By setting all bits high before
+			 * scanning we make sure that any in-repo cgitrc
+			 * snapshot setting is respected by scan_tree().
+			 * BTW: we assume that there'll never be more than
+			 * 255 different snapshot formats supported by cgit...
+			 */
+			ctx.cfg.snapshots = 0xFF;
 			scan++;
-			scan_tree(argv[i] + 12);
+			scan_tree(argv[i] + 12, repo_config);
 		}
 	}
 	if (scan) {
 		qsort(cgit_repolist.repos, cgit_repolist.count,
 			sizeof(struct cgit_repo), cmp_repos);
-		print_repolist(&cgit_repolist);
+		print_repolist(stdout, &cgit_repolist, 0);
 		exit(0);
 	}
 }
 
 static int calc_ttl()
 {
 	if (!ctx.repo)
 		return ctx.cfg.cache_root_ttl;
 
 	if (!ctx.qry.page)
 		return ctx.cfg.cache_repo_ttl;
 
diff --git a/cgit.css b/cgit.css
index ebf3322..c47ebc9 100644
--- a/cgit.css
+++ b/cgit.css
@@ -420,25 +420,25 @@ table.diff td div.del {
 	font-family: monospace;
 	font-size: 90%;
 }
 
 .left {
 	text-align: left;
 }
 
 .right {
 	text-align: right;
 }
 
-table.list td.repogroup {
+table.list td.reposection {
 	font-style: italic;
 	color: #888;
 }
 
 a.button {
 	font-size: 80%;
 	padding: 0em 0.5em;
 }
 
 a.primary {
 	font-size: 100%;
 }
diff --git a/cgit.h b/cgit.h
index a20679a..6c6c460 100644
--- a/cgit.h
+++ b/cgit.h
@@ -56,38 +56,41 @@ struct cgit_filter {
 	int pipe_fh[2];
 	int pid;
 	int exitstatus;
 };
 
 struct cgit_repo {
 	char *url;
 	char *name;
 	char *path;
 	char *desc;
 	char *owner;
 	char *defbranch;
-	char *group;
 	char *module_link;
 	char *readme;
+	char *section;
 	char *clone_url;
 	int snapshots;
 	int enable_log_filecount;
 	int enable_log_linecount;
 	int max_stats;
 	time_t mtime;
 	struct cgit_filter *about_filter;
 	struct cgit_filter *commit_filter;
 	struct cgit_filter *source_filter;
 };
 
+typedef void (*repo_config_fn)(struct cgit_repo *repo, const char *name,
+	      const char *value);
+
 struct cgit_repolist {
 	int length;
 	int count;
 	struct cgit_repo *repos;
 };
 
 struct commitinfo {
 	struct commit *commit;
 	char *author;
 	char *author_email;
 	unsigned long author_date;
 	char *committer;
@@ -147,38 +150,40 @@ struct cgit_config {
 	char *cache_root;
 	char *clone_prefix;
 	char *css;
 	char *favicon;
 	char *footer;
 	char *head_include;
 	char *header;
 	char *index_header;
 	char *index_info;
 	char *logo;
 	char *logo_link;
 	char *module_link;
-	char *repo_group;
 	char *robots;
 	char *root_title;
 	char *root_desc;
 	char *root_readme;
 	char *script_name;
+	char *section;
 	char *virtual_root;
 	int cache_size;
 	int cache_dynamic_ttl;
 	int cache_max_create_time;
 	int cache_repo_ttl;
 	int cache_root_ttl;
+	int cache_scanrc_ttl;
 	int cache_static_ttl;
 	int embedded;
+	int enable_filter_overrides;
 	int enable_index_links;
 	int enable_log_filecount;
 	int enable_log_linecount;
 	int enable_tree_linenumbers;
 	int local_time;
 	int max_repo_count;
 	int max_commit_count;
 	int max_lock_attempts;
 	int max_msg_len;
 	int max_repodesc_len;
 	int max_stats;
 	int nocache;
diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index 3b16db9..4dc383d 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -45,24 +45,28 @@ cache-dynamic-ttl::
 	Number which specifies the time-to-live, in minutes, for the cached
 	version of repository pages accessed without a fixed SHA1. Default
 	value: "5".
 
 cache-repo-ttl::
 	Number which specifies the time-to-live, in minutes, for the cached
 	version of the repository summary page. Default value: "5".
 
 cache-root-ttl::
 	Number which specifies the time-to-live, in minutes, for the cached
 	version of the repository index page. Default value: "5".
 
+cache-scanrc-ttl::
+	Number which specifies the time-to-live, in minutes, for the result
+	of scanning a path for git repositories. Default value: "15".
+
 cache-size::
 	The maximum number of entries in the cgit cache. Default value: "0"
 	(i.e. caching is disabled).
 
 cache-static-ttl::
 	Number which specifies the time-to-live, in minutes, for the cached
 	version of repository pages accessed with a fixed SHA1. Default value:
 	"5".
 
 clone-prefix::
 	Space-separated list of common prefixes which, when combined with a
 	repository url, generates valid clone urls for the repository. This
@@ -75,24 +79,28 @@ commit-filter::
 	command will be included verbatim as the commit message, i.e. this can
 	be used to implement bugtracker integration. Default value: none.
 
 css::
 	Url which specifies the css document to include in all cgit pages.
 	Default value: "/cgit.css".
 
 embedded::
 	Flag which, when set to "1", will make cgit generate a html fragment
 	suitable for embedding in other html pages. Default value: none. See
 	also: "noheader".
 	
+enable-filter-overrides::
+	Flag which, when set to "1", allows all filter settings to be
+	overridden in repository-specific cgitrc files. Default value: none.
+
 enable-index-links::
 	Flag which, when set to "1", will make cgit generate extra links for
 	each repo in the repository index (specifically, to the "summary",
 	"commit" and "tree" pages). Default value: "0".
 
 enable-log-filecount::
 	Flag which, when set to "1", will make cgit print the number of
 	modified files for each commit on the repository log page. Default
 	value: "0".
 
 enable-log-linecount::
 	Flag which, when set to "1", will make cgit print the number of added
@@ -191,44 +199,54 @@ noplainemail::
 	Default value: "0".
 
 noheader::
 	Flag which, when set to "1", will make cgit omit the standard header
 	on all pages. Default value: none. See also: "embedded".
 
 renamelimit::
 	Maximum number of files to consider when detecting renames. The value
 	 "-1" uses the compiletime value in git (for further info, look at
 	  `man git-diff`). Default value: "-1".
 
 repo.group::
-	A value for the current repository group, which all repositories
-	specified after this setting will inherit. Default value: none.
+	Legacy alias for "section". This option is deprecated and will not be
+	supported in cgit-1.0.
 
 robots::
 	Text used as content for the "robots" meta-tag. Default value:
 	"index, nofollow".
 
 root-desc::
 	Text printed below the heading on the repository index page. Default
 	value: "a fast webinterface for the git dscm".
 
 root-readme::
 	The content of the file specified with this option will be included
 	verbatim below the "about" link on the repository index page. Default
 	value: none.
 
 root-title::
 	Text printed as heading on the repository index page. Default value:
 	"Git Repository Browser".
 
+scan-path::
+	A path which will be scanned for repositories. If caching is enabled,
+	the result will be cached as a cgitrc include-file in the cache
+	directory. Default value: none. See also: cache-scanrc-ttl.
+
+section::
+	The name of the current repository section - all repositories defined
+	after this option will inherit the current section name. Default value:
+	none.
+
 snapshots::
 	Text which specifies the default set of snapshot formats generated by
 	cgit. The value is a space-separated list of zero or more of the
 	values "tar", "tar.gz", "tar.bz2" and "zip". Default value: none.
 
 source-filter::
 	Specifies a command which will be invoked to format plaintext blobs
 	in the tree view. The command will get the blob content on its STDIN
 	and the name of the blob as its only command line argument. The STDOUT
 	from the command will be included verbatim as the blob contents, i.e.
 	this can be used to implement e.g. syntax highlighting. Default value:
 	none.
@@ -247,32 +265,34 @@ summary-tags::
 
 virtual-root::
 	Url which, if specified, will be used as root for all cgit links. It
 	will also cause cgit to generate 'virtual urls', i.e. urls like
 	'/cgit/tree/README' as opposed to '?r=cgit&p=tree&path=README'. Default
 	value: none.
 	NOTE: cgit has recently learned how to use PATH_INFO to achieve the
 	same kind of virtual urls, so this option will probably be deprecated.
 
 REPOSITORY SETTINGS
 -------------------
 repo.about-filter::
-	Override the default about-filter. Default value: <about-filter>.
+	Override the default about-filter. Default value: none. See also:
+	"enable-filter-overrides".
 
 repo.clone-url::
 	A list of space-separated urls which can be used to clone this repo.
 	Default value: none.
 
 repo.commit-filter::
-	Override the default commit-filter. Default value: <commit-filter>.
+	Override the default commit-filter. Default value: none. See also:
+	"enable-filter-overrides".
 
 repo.defbranch::
 	The name of the default branch for this repository. If no such branch
 	exists in the repository, the first branch name (when sorted) is used
 	as default instead. Default value: "master".
 
 repo.desc::
 	The value to show as repository description. Default value: none.
 
 repo.enable-log-filecount::
 	A flag which can be used to disable the global setting
 	`enable-log-filecount'. Default value: none.
@@ -296,32 +316,50 @@ repo.owner::
 repo.path::
 	An absolute path to the repository directory. For non-bare repositories
 	this is the .git-directory. Default value: none.
 
 repo.readme::
 	A path (relative to <repo.path>) which specifies a file to include
 	verbatim as the "About" page for this repo. Default value: none.
 
 repo.snapshots::
 	A mask of allowed snapshot-formats for this repo, restricted by the
 	"snapshots" global setting. Default value: <snapshots>.
 
+repo.section::
+	Override the current section name for this repository. Default value:
+	none.
+
 repo.source-filter::
-	Override the default source-filter. Default value: <source-filter>.
+	Override the default source-filter. Default value: none. See also:
+	"enable-filter-overrides".
 
 repo.url::
 	The relative url used to access the repository. This must be the first
 	setting specified for each repo. Default value: none.
 
 
+REPOSITORY-SPECIFIC CGITRC FILE
+-------------------------------
+When the option "scan-path" is used to auto-discover git repositories, cgit
+will try to parse the file "cgitrc" within any found repository. Such a
+repo-specific config file may contain any of the repo-specific options
+described above, except "repo.url" and "repo.path". Additionally, the "filter"
+options are only acknowledged in repo-specific config files when
+"enable-filter-overrides" is set to "1".
+
+Note: the "repo." prefix is dropped from the option names in repo-specific
+config files, e.g. "repo.desc" becomes "desc".
+
+
 EXAMPLE CGITRC FILE
 -------------------
 
 ....
 # Enable caching of up to 1000 output entriess
 cache-size=1000
 
 
 # Specify some default clone prefixes
 clone-prefix=git://foobar.com ssh://foobar.com/pub/git http://foobar.com/git
 
 # Specify the css url
diff --git a/scan-tree.c b/scan-tree.c
index 4da21a4..dbca797 100644
--- a/scan-tree.c
+++ b/scan-tree.c
@@ -1,13 +1,14 @@
 #include "cgit.h"
+#include "configfile.h"
 #include "html.h"
 
 #define MAX_PATH 4096
 
 /* return 1 if path contains a objects/ directory and a HEAD file */
 static int is_git_dir(const char *path)
 {
 	struct stat st;
 	static char buf[MAX_PATH];
 
 	if (snprintf(buf, MAX_PATH, "%s/objects", path) >= MAX_PATH) {
 		fprintf(stderr, "Insanely long path: %s\n", path);
@@ -26,27 +27,34 @@ static int is_git_dir(const char *path)
 	if (stat(buf, &st)) {
 		if (errno != ENOENT)
 			fprintf(stderr, "Error checking path %s: %s (%d)\n",
 				path, strerror(errno), errno);
 		return 0;
 	}
 	if (!S_ISREG(st.st_mode))
 		return 0;
 
 	return 1;
 }
 
-static void add_repo(const char *base, const char *path)
-{
 	struct cgit_repo *repo;
+repo_config_fn config_fn;
+
+static void repo_config(const char *name, const char *value)
+{
+	config_fn(repo, name, value);
+}
+
+static void add_repo(const char *base, const char *path, repo_config_fn fn)
+{
 	struct stat st;
 	struct passwd *pwd;
 	char *p;
 	size_t size;
 
 	if (stat(path, &st)) {
 		fprintf(stderr, "Error accessing %s: %s (%d)\n",
 			path, strerror(errno), errno);
 		return;
 	}
 	if ((pwd = getpwuid(st.st_uid)) == NULL) {
 		fprintf(stderr, "Error reading owner-info for %s: %s (%d)\n",
@@ -67,35 +75,45 @@ static void add_repo(const char *base, const char *path)
 	p = (pwd && pwd->pw_gecos) ? strchr(pwd->pw_gecos, ',') : NULL;
 	if (p)
 		*p = '\0';
 	repo->owner = (pwd ? xstrdup(pwd->pw_gecos ? pwd->pw_gecos : pwd->pw_name) : "");
 
 	p = fmt("%s/description", path);
 	if (!stat(p, &st))
 		readfile(p, &repo->desc, &size);
 
 	p = fmt("%s/README.html", path);
 	if (!stat(p, &st))
 		repo->readme = "README.html";
+
+	p = fmt("%s/cgitrc", path);
+	if (!stat(p, &st)) {
+		config_fn = fn;
+		parse_configfile(xstrdup(p), &repo_config);
+	}
 }
 
-static void scan_path(const char *base, const char *path)
+static void scan_path(const char *base, const char *path, repo_config_fn fn)
 {
 	DIR *dir;
 	struct dirent *ent;
 	char *buf;
 	struct stat st;
 
 	if (is_git_dir(path)) {
-		add_repo(base, path);
+		add_repo(base, path, fn);
+		return;
+	}
+	if (is_git_dir(fmt("%s/.git", path))) {
+		add_repo(base, fmt("%s/.git", path), fn);
 		return;
 	}
 	dir = opendir(path);
 	if (!dir) {
 		fprintf(stderr, "Error opening directory %s: %s (%d)\n",
 			path, strerror(errno), errno);
 		return;
 	}
 	while((ent = readdir(dir)) != NULL) {
 		if (ent->d_name[0] == '.') {
 			if (ent->d_name[1] == '\0')
 				continue;
@@ -107,22 +125,22 @@ static void scan_path(const char *base, const char *path)
 			fprintf(stderr, "Alloc error on %s: %s (%d)\n",
 				path, strerror(errno), errno);
 			exit(1);
 		}
 		sprintf(buf, "%s/%s", path, ent->d_name);
 		if (stat(buf, &st)) {
 			fprintf(stderr, "Error checking path %s: %s (%d)\n",
 				buf, strerror(errno), errno);
 			free(buf);
 			continue;
 		}
 		if (S_ISDIR(st.st_mode))
-			scan_path(base, buf);
+			scan_path(base, buf, fn);
 		free(buf);
 	}
 	closedir(dir);
 }
 
-void scan_tree(const char *path)
+void scan_tree(const char *path, repo_config_fn fn)
 {
-	scan_path(path, path);
+	scan_path(path, path, fn);
 }
diff --git a/scan-tree.h b/scan-tree.h
index b103b16..11539f4 100644
--- a/scan-tree.h
+++ b/scan-tree.h
@@ -1,3 +1,3 @@
 
 
-extern void scan_tree(const char *path);
+extern void scan_tree(const char *path, repo_config_fn fn);
diff --git a/shared.c b/shared.c
index 4cb9573..d7b2d5a 100644
--- a/shared.c
+++ b/shared.c
@@ -39,30 +39,31 @@ struct cgit_repo *cgit_add_repo(const char *url)
 
 	if (++cgit_repolist.count > cgit_repolist.length) {
 		if (cgit_repolist.length == 0)
 			cgit_repolist.length = 8;
 		else
 			cgit_repolist.length *= 2;
 		cgit_repolist.repos = xrealloc(cgit_repolist.repos,
 					       cgit_repolist.length *
 					       sizeof(struct cgit_repo));
 	}
 
 	ret = &cgit_repolist.repos[cgit_repolist.count-1];
+	memset(ret, 0, sizeof(struct cgit_repo));
 	ret->url = trim_end(url, '/');
 	ret->name = ret->url;
 	ret->path = NULL;
 	ret->desc = "[no description]";
 	ret->owner = NULL;
-	ret->group = ctx.cfg.repo_group;
+	ret->section = ctx.cfg.section;
 	ret->defbranch = "master";
 	ret->snapshots = ctx.cfg.snapshots;
 	ret->enable_log_filecount = ctx.cfg.enable_log_filecount;
 	ret->enable_log_linecount = ctx.cfg.enable_log_linecount;
 	ret->max_stats = ctx.cfg.max_stats;
 	ret->module_link = ctx.cfg.module_link;
 	ret->readme = NULL;
 	ret->mtime = -1;
 	ret->about_filter = ctx.cfg.about_filter;
 	ret->commit_filter = ctx.cfg.commit_filter;
 	ret->source_filter = ctx.cfg.source_filter;
 	return ret;
diff --git a/ui-repolist.c b/ui-repolist.c
index 7c7aa9b..3ef2e99 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -127,24 +127,36 @@ void print_pager(int items, int pagelen, char *search)
 
 static int cmp(const char *s1, const char *s2)
 {
 	if (s1 && s2)
 		return strcmp(s1, s2);
 	if (s1 && !s2)
 		return -1;
 	if (s2 && !s1)
 		return 1;
 	return 0;
 }
 
+static int sort_section(const void *a, const void *b)
+{
+	const struct cgit_repo *r1 = a;
+	const struct cgit_repo *r2 = b;
+	int result;
+
+	result = cmp(r1->section, r2->section);
+	if (!result)
+		result = cmp(r1->name, r2->name);
+	return result;
+}
+
 static int sort_name(const void *a, const void *b)
 {
 	const struct cgit_repo *r1 = a;
 	const struct cgit_repo *r2 = b;
 
 	return cmp(r1->name, r2->name);
 }
 
 static int sort_desc(const void *a, const void *b)
 {
 	const struct cgit_repo *r1 = a;
 	const struct cgit_repo *r2 = b;
@@ -169,24 +181,25 @@ static int sort_idle(const void *a, const void *b)
 	t1 = t2 = 0;
 	get_repo_modtime(r1, &t1);
 	get_repo_modtime(r2, &t2);
 	return t2 - t1;
 }
 
 struct sortcolumn {
 	const char *name;
 	int (*fn)(const void *a, const void *b);
 };
 
 struct sortcolumn sortcolumn[] = {
+	{"section", sort_section},
 	{"name", sort_name},
 	{"desc", sort_desc},
 	{"owner", sort_owner},
 	{"idle", sort_idle},
 	{NULL, NULL}
 };
 
 int sort_repolist(char *field)
 {
 	struct sortcolumn *column;
 
 	for (column = &sortcolumn[0]; column->name; column++) {
@@ -194,66 +207,72 @@ int sort_repolist(char *field)
 			continue;
 		qsort(cgit_repolist.repos, cgit_repolist.count,
 			sizeof(struct cgit_repo), column->fn);
 		return 1;
 	}
 	return 0;
 }
 
 
 void cgit_print_repolist()
 {
 	int i, columns = 4, hits = 0, header = 0;
-	char *last_group = NULL;
+	char *last_section = NULL;
+	char *section;
 	int sorted = 0;
 
 	if (ctx.cfg.enable_index_links)
 		columns++;
 
 	ctx.page.title = ctx.cfg.root_title;
 	cgit_print_http_headers(&ctx);
 	cgit_print_docstart(&ctx);
 	cgit_print_pageheader(&ctx);
 
 	if (ctx.cfg.index_header)
 		html_include(ctx.cfg.index_header);
 
 	if(ctx.qry.sort)
 		sorted = sort_repolist(ctx.qry.sort);
+	else
+		sort_repolist("section");
 
 	html("<table summary='repository list' class='list nowrap'>");
 	for (i=0; i<cgit_repolist.count; i++) {
 		ctx.repo = &cgit_repolist.repos[i];
 		if (!(is_match(ctx.repo) && is_in_url(ctx.repo)))
 			continue;
 		hits++;
 		if (hits <= ctx.qry.ofs)
 			continue;
 		if (hits > ctx.qry.ofs + ctx.cfg.max_repo_count)
 			continue;
 		if (!header++)
 			print_header(columns);
+		section = ctx.repo->section;
+		if (section && !strcmp(section, ""))
+			section = NULL;
 		if (!sorted &&
-		    ((last_group == NULL && ctx.repo->group != NULL) ||
-		    (last_group != NULL && ctx.repo->group == NULL) ||
-		    (last_group != NULL && ctx.repo->group != NULL &&
-		     strcmp(ctx.repo->group, last_group)))) {
-			htmlf("<tr class='nohover'><td colspan='%d' class='repogroup'>",
+		    ((last_section == NULL && section != NULL) ||
+		    (last_section != NULL && section == NULL) ||
+		    (last_section != NULL && section != NULL &&
+		     strcmp(section, last_section)))) {
+			htmlf("<tr class='nohover'><td colspan='%d' class='reposection'>",
 			      columns);
-			html_txt(ctx.repo->group);
+			html_txt(section);
 			html("</td></tr>");
-			last_group = ctx.repo->group;
+			last_section = section;
 		}
 		htmlf("<tr><td class='%s'>",
-		      !sorted && ctx.repo->group ? "sublevel-repo" : "toplevel-repo");
+		      !sorted && section ? "sublevel-repo" : "toplevel-repo");
 		cgit_summary_link(ctx.repo->name, ctx.repo->name, NULL, NULL);
 		html("</td><td>");
 		html_link_open(cgit_repourl(ctx.repo->url), NULL, NULL);
 		html_ntxt(ctx.cfg.max_repodesc_len, ctx.repo->desc);
 		html_link_close();
 		html("</td><td>");
 		html_txt(ctx.repo->owner);
 		html("</td><td>");
 		print_modtime(ctx.repo);
 		html("</td>");
 		if (ctx.cfg.enable_index_links) {
 			html("<td>");
diff --git a/ui-stats.c b/ui-stats.c
index 9fc06d3..bdaf9cc 100644
--- a/ui-stats.c
+++ b/ui-stats.c
@@ -145,24 +145,32 @@ int cgit_find_stats_period(const char *expr, struct cgit_period **period)
 	if (strlen(expr) == 1)
 		code = expr[0];
 
 	for (i = 0; i < sizeof(periods) / sizeof(periods[0]); i++)
 		if (periods[i].code == code || !strcmp(periods[i].name, expr)) {
 			if (period)
 				*period = &periods[i];
 			return i+1;
 		}
 	return 0;
 }
 
+const char *cgit_find_stats_periodname(int idx)
+{
+	if (idx > 0 && idx < 4)
+		return periods[idx - 1].name;
+	else
+		return "";
+}
+
 static void add_commit(struct string_list *authors, struct commit *commit,
 	struct cgit_period *period)
 {
 	struct commitinfo *info;
 	struct string_list_item *author, *item;
 	struct authorstat *authorstat;
 	struct string_list *items;
 	char *tmp;
 	struct tm *date;
 	time_t t;
 
 	info = cgit_parse_commit(commit);
diff --git a/ui-stats.h b/ui-stats.h
index 4f13dba..f0761ba 100644
--- a/ui-stats.h
+++ b/ui-stats.h
@@ -12,16 +12,17 @@ struct cgit_period {
 	/* Convert a tm value to the first day in the period */
 	void (*trunc)(struct tm *tm);
 
 	/* Update tm value to start of next/previous period */
 	void (*dec)(struct tm *tm);
 	void (*inc)(struct tm *tm);
 
 	/* Pretty-print a tm value */
 	char *(*pretty)(struct tm *tm);
 };
 
 extern int cgit_find_stats_period(const char *expr, struct cgit_period **period);
+extern const char *cgit_find_stats_periodname(int idx);
 
 extern void cgit_show_stats(struct cgit_context *ctx);
 
 #endif /* UI_STATS_H */