Add branch-sort and repo.branch-sort options.

When set to "name", branches are sorted by name, which is the current
default. When set to "age", branches are sorted by the age of the
repository.

This feature was requested by Konstantin Ryabitsev for use on
kernel.org.

Proposed-by: Konstantin Ryabitsev <mricon@kernel.org>

cgit.c

@@ -84,7 +84,12 @@ static void repo_config(struct cgit_repo *repo, const char *name, const char *va
 		repo->enable_remote_branches = atoi(value);
 	else if (!strcmp(name, "enable-subject-links"))
 		repo->enable_subject_links = atoi(value);
-	else if (!strcmp(name, "commit-sort")) {
+	else if (!strcmp(name, "branch-sort")) {
+		if (!strcmp(value, "age"))
+			repo->branch_sort = 1;
+		if (!strcmp(value, "name"))
+			repo->branch_sort = 0;
+	} else if (!strcmp(name, "commit-sort")) {
 		if (!strcmp(value, "date"))
 			repo->commit_sort = 1;
 		if (!strcmp(value, "topo"))
@@ -271,6 +276,11 @@ static void config_cb(const char *name, const char *value)
 			ctx.cfg.commit_sort = 1;
 		if (!strcmp(value, "topo"))
 			ctx.cfg.commit_sort = 2;
+	} else if (!strcmp(name, "branch-sort")) {
+		if (!strcmp(value, "age"))
+			ctx.cfg.branch_sort = 1;
+		if (!strcmp(value, "name"))
+			ctx.cfg.branch_sort = 0;
 	} else if (!prefixcmp(name, "mimetype."))
 		add_mimetype(name + 9, value);
 	else if (!strcmp(name, "include"))
@@ -345,6 +355,8 @@ static void prepare_context(struct cgit_context *ctx)
 	ctx->cfg.cache_scanrc_ttl = 15;
 	ctx->cfg.cache_static_ttl = -1;
 	ctx->cfg.case_sensitive_sort = 1;
+	ctx->cfg.branch_sort = 0;
+	ctx->cfg.commit_sort = 0;
 	ctx->cfg.css = "/cgit.css";
 	ctx->cfg.logo = "/cgit.png";
 	ctx->cfg.local_time = 0;

cgit.h

@@ -85,6 +85,7 @@ struct cgit_repo {
 	int enable_remote_branches;
 	int enable_subject_links;
 	int max_stats;
+	int branch_sort;
 	int commit_sort;
 	time_t mtime;
 	struct cgit_filter *about_filter;
@@ -234,6 +235,7 @@ struct cgit_config {
 	int summary_log;
 	int summary_tags;
 	int ssdiff;
+	int branch_sort;
 	int commit_sort;
 	struct string_list mimetypes;
 	struct cgit_filter *about_filter;

cgitrc.5.txt

@@ -40,6 +40,11 @@ agefile::
 	function in libgit. Recommended timestamp-format is "yyyy-mm-dd
 	hh:mm:ss". Default value: "info/web/last-modified".
 
+branch-sort::
+	Flag which, when set to "age", enables date ordering in the branch ref
+	list, and when set to "name" enables ordering by branch name. Default
+	value: "name".
+
 cache-root::
 	Path used to store the cgit cache entries. Default value:
 	"/var/cache/cgit". See also: "MACRO EXPANSION".
@@ -92,6 +97,12 @@ commit-filter::
 	be used to implement bugtracker integration. Default value: none.
 	See also: "FILTER API".
 
+commit-sort::
+	Flag which, when set to "date", enables strict date ordering in the
+	commit log, and when set to "topo" enables strict topological
+	ordering. If unset, the default ordering of "git log" is used. Default
+	value: unset.
+
 css::
 	Url which specifies the css document to include in all cgit pages.
 	Default value: "/cgit.css".
@@ -196,12 +207,6 @@ local-time::
 	Flag which, if set to "1", makes cgit print commit and tag times in the
 	servers timezone. Default value: "0".
 
-commit-sort::
-	Flag which, when set to "date", enables strict date ordering in the
-	commit log, and when set to "topo" enables strict topological
-	ordering. If unset, the default ordering of "git log" is used. Default
-	value: unset.
-
 logo::
 	Url which specifies the source of an image which will be used as a logo
 	on all cgit pages. Default value: "/cgit.png".
@@ -299,6 +304,12 @@ repo.group::
 	Legacy alias for "section". This option is deprecated and will not be
 	supported in cgit-1.0.
 
+repository-sort::
+	The way in which repositories in each section are sorted. Valid values
+	are "name" for sorting by the repo name or "age" for sorting by the
+	most recently updated repository. Default value: "name". See also:
+	section, case-sensitive-sort, section-sort.
+
 robots::
 	Text used as content for the "robots" meta-tag. Default value:
 	"index, nofollow".
@@ -339,12 +350,6 @@ section::
 	after this option will inherit the current section name. Default value:
 	none.
 
-repository-sort::
-	The way in which repositories in each section are sorted. Valid values
-	are "name" for sorting by the repo name or "age" for sorting by the
-	most recently updated repository. Default value: "name". See also:
-	section, case-sensitive-sort, section-sort.
-
 section-sort::
 	Flag which, when set to "1", will sort the sections on the repository
 	listing by name. Set this flag to "0" if the order in the cgitrc file should
@@ -409,6 +414,11 @@ repo.about-filter::
 	Override the default about-filter. Default value: none. See also:
 	"enable-filter-overrides". See also: "FILTER API".
 
+repo.branch-sort::
+	Flag which, when set to "age", enables date ordering in the branch ref
+	list, and when set to "name" enables ordering by branch name. Default
+	value: "name".
+
 repo.clone-url::
 	A list of space-separated urls which can be used to clone this repo.
 	Default value: none. See also: "MACRO EXPANSION".
@@ -417,6 +427,12 @@ repo.commit-filter::
 	Override the default commit-filter. Default value: none. See also:
 	"enable-filter-overrides". See also: "FILTER API".
 
+repo.commit-sort::
+	Flag which, when set to "date", enables strict date ordering in the
+	commit log, and when set to "topo" enables strict topological
+	ordering. If unset, the default ordering of "git log" is used. Default
+	value: unset.
+
 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
@@ -446,12 +462,6 @@ repo.enable-subject-links::
 	A flag which can be used to override the global setting
 	`enable-subject-links'. Default value: none.
 
-repo.commit-sort::
-	Flag which, when set to "date", enables strict date ordering in the
-	commit log, and when set to "topo" enables strict topological
-	ordering. If unset, the default ordering of "git log" is used. Default
-	value: unset.
-
 repo.logo::
 	Url which specifies the source of an image which will be used as a logo
 	on this repo's pages. Default value: global logo.

shared.c

@@ -63,6 +63,7 @@ struct cgit_repo *cgit_add_repo(const char *url)
 	ret->enable_remote_branches = ctx.cfg.enable_remote_branches;
 	ret->enable_subject_links = ctx.cfg.enable_subject_links;
 	ret->max_stats = ctx.cfg.max_stats;
+	ret->branch_sort = ctx.cfg.branch_sort;
 	ret->commit_sort = ctx.cfg.commit_sort;
 	ret->module_link = ctx.cfg.module_link;
 	ret->readme = ctx.cfg.readme;

ui-refs.c

@@ -197,10 +197,9 @@ void cgit_print_branches(int maxcount)
 	if (maxcount == 0 || maxcount > list.count)
 		maxcount = list.count;
 
-	if (maxcount < list.count) {
-		qsort(list.refs, list.count, sizeof(*list.refs), cmp_branch_age);
+	qsort(list.refs, list.count, sizeof(*list.refs), cmp_branch_age);
+	if (ctx.repo->branch_sort == 0)
 		qsort(list.refs, maxcount, sizeof(*list.refs), cmp_ref_name);
-	}
 
 	for (i = 0; i < maxcount; i++)
 		print_branch(list.refs[i]);