ui-repolist: add support for sorting any column

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

1 files changed, 83 insertions, 9 deletions

diff --git a/ui-repolist.c b/ui-repolist.c
index 436a774..0de328b 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -69,103 +69,177 @@ int is_match(struct cgit_repo *repo)
         return 0;
 }
 
 int is_in_url(struct cgit_repo *repo)
 {
         if (!ctx.qry.url)
                 return 1;
         if (repo->url && !prefixcmp(repo->url, ctx.qry.url))
                 return 1;
         return 0;
 }
 
+void print_sort_header(const char *title, const char *sort)
+{
+        htmlf("<th class='left'><a href='./?s=%s", sort);
+        if (ctx.qry.search) {
+                html("&q=");
+                html_url_arg(ctx.qry.search);
+        }
+        htmlf("'>%s</a></th>", title);
+}
+
 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'><a href=\"?s=1\">Idle</a></th>");
+        html("<tr class='nohover'>");
+        print_sort_header("Name", "name");
+        print_sort_header("Description", "desc");
+        print_sort_header("Owner", "owner");
+        print_sort_header("Idle", "idle");
         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)
+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_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;
+
+        return cmp(r1->desc, r2->desc);
+}
+
+static int sort_owner(const void *a, const void *b)
+{
+        const struct cgit_repo *r1 = a;
+        const struct cgit_repo *r2 = b;
+
+        return cmp(r1->owner, r2->owner);
+}
+
+static int sort_idle(const void *a, const void *b)
 {
         const struct cgit_repo *r1 = a;
         const struct cgit_repo *r2 = b;
         time_t t1, t2;
 
         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[] = {
+        {"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++) {
+                if (strcmp(field, column->name))
+                        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;
+        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)
-                qsort(cgit_repolist.repos,cgit_repolist.count,sizeof(struct cgit_repo),cgit_reposort_modtime);
+                sorted = sort_repolist(ctx.qry.sort);
 
         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 (!ctx.qry.sort &&
+                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'>",
                               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");
+                      !sorted && ctx.repo->group ? "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>");