3 files changed, 39 insertions, 3 deletions

diff --git a/cgit.c b/cgit.c
index c82587b..e09c86e 100644
--- a/cgit.c
+++ b/cgit.c
@@ -149,16 +149,18 @@ static void querystring_cb(const char *name, const char *value)
         } else if (!strcmp(name, "ofs")) {
                 ctx.qry.ofs = atoi(value);
         } else if (!strcmp(name, "path")) {
                 ctx.qry.path = trim_end(value, '/');
         } else if (!strcmp(name, "name")) {
                 ctx.qry.name = xstrdup(value);
         } else if (!strcmp(name, "mimetype")) {
                 ctx.qry.mimetype = xstrdup(value);
+        } else if (!strcmp(name, "s")){
+                ctx.qry.sort = xstrdup(value);
         }
 }
 
 static void prepare_context(struct cgit_context *ctx)
 {
         memset(ctx, 0, sizeof(ctx));
         ctx->cfg.agefile = "info/web/last-modified";
         ctx->cfg.nocache = 0;
diff --git a/cgit.h b/cgit.h
index 91db98a..ea90833 100644
--- a/cgit.h
+++ b/cgit.h
@@ -116,16 +116,17 @@ struct cgit_query {
         char *sha1;
         char *sha2;
         char *path;
         char *name;
         char *mimetype;
         char *url;
         int   ofs;
         int nohead;
+        char *sort;
 };
 
 struct cgit_config {
         char *agefile;
         char *cache_root;
         char *clone_prefix;
         char *css;
         char *favicon;
diff --git a/ui-repolist.c b/ui-repolist.c
index c23232c..312a7ee 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -70,65 +70,98 @@ int is_in_url(struct cgit_repo *repo)
 }
 
 void print_header(int columns)
 {
         html("<tr class='nohover'>"
              "<th class='left'>Name</th>"
              "<th class='left'>Description</th>"
              "<th class='left'>Owner</th>"
-             "<th class='left'>Idle</th>");
+             "<th class='left'><a href=\"?s=1\">Idle</a></th>");
         if (ctx.cfg.enable_index_links)
                 html("<th class='left'>Links</th>");
         html("</tr>\n");
 }
 
 
 void print_pager(int items, int pagelen, char *search)
 {
         int i;
         html("<div class='pager'>");
         for(i = 0; i * pagelen < items; i++)
                 cgit_index_link(fmt("[%d]", i+1), fmt("Page %d", i+1), NULL,
                                 search, i * pagelen);
         html("</div>");
 }
 
+static int cgit_reposort_modtime(const void *a, const void *b)
+{
+        const struct cgit_repo *r1 = a;
+        const struct cgit_repo *r2 = b;
+        char *path;
+        struct stat s;
+        time_t t1, t2;
+        path = fmt("%s/%s", r1->path, ctx.cfg.agefile);
+        if (stat(path, &s) == 0) {
+                t1 = read_agefile(path);
+        } else {
+                path = fmt("%s/refs/heads/%s", r1->path, r1->defbranch);
+                if (stat(path, &s) != 0)
+                        return 0;
+                t1 =s.st_mtime;
+        }
+
+        path = fmt("%s/%s", r2->path, ctx.cfg.agefile);
+        if (stat(path, &s) == 0) {
+                t2 = read_agefile(path);
+        } else {
+                path = fmt("%s/refs/heads/%s", r2->path, r2->defbranch);
+                if (stat(path, &s) != 0)
+                        return 0;
+                t2 =s.st_mtime;
+        }
+        return t2-t1;
+}
+
 void cgit_print_repolist()
 {
         int i, columns = 4, hits = 0, header = 0;
         char *last_group = NULL;
 
         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)
+                qsort(cgit_repolist.repos,cgit_repolist.count,sizeof(struct cgit_repo),cgit_reposort_modtime);
+
         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);
-                if ((last_group == NULL && ctx.repo->group != NULL) ||
+                if (!ctx.qry.sort &&
+                    ((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))) {
+                     strcmp(ctx.repo->group, last_group)))) {
                         htmlf("<tr class='nohover'><td colspan='%d' class='repogroup'>",
                               columns);
                         html_txt(ctx.repo->group);
                         html("</td></tr>");
                         last_group = ctx.repo->group;
                 }
                 htmlf("<tr><td class='%s'>",
                       ctx.repo->group ? "sublevel-repo" : "toplevel-repo");