Teach cgit how to group repositories by category

The new parameter 'repo.group' is used to set the repository group
for the following repositores. Whenever this parameter changes value,
a subheading is generated in the index page (printing the current value
of repo.group).

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

cgit.css

@@ -353,3 +353,8 @@ table.diff td div.del {
 .right {
 	text-align: right;
 }
+
+table.list td.repogroup {
+	padding-top: 1em;
+	font-weight: bold;
+}

cgit.h

@@ -36,6 +36,7 @@ struct repoinfo {
 	char *desc;
 	char *owner;
 	char *defbranch;
+	char *group;
 	char *module_link;
 	int snapshots;
 	int enable_log_filecount;
@@ -80,6 +81,7 @@ extern char *cgit_module_link;
 extern char *cgit_virtual_root;
 extern char *cgit_script_name;
 extern char *cgit_cache_root;
+extern char *cgit_repo_group;
 
 extern int cgit_nocache;
 extern int cgit_snapshots;

shared.c

@@ -19,6 +19,7 @@ char *cgit_module_link  = "./?repo=%s&page=commit&id=%s";
 char *cgit_virtual_root = NULL;
 char *cgit_script_name  = CGIT_SCRIPT_NAME;
 char *cgit_cache_root   = "/var/cache/cgit";
+char *cgit_repo_group   = NULL;
 
 int cgit_nocache               =  0;
 int cgit_snapshots             =  0;
@@ -85,6 +86,7 @@ struct repoinfo *add_repo(const char *url)
 	ret->path = NULL;
 	ret->desc = NULL;
 	ret->owner = NULL;
+	ret->group = cgit_repo_group;
 	ret->defbranch = "master";
 	ret->snapshots = cgit_snapshots;
 	ret->enable_log_filecount = cgit_enable_log_filecount;
@@ -131,6 +133,8 @@ void cgit_global_config_cb(const char *name, const char *value)
 		cgit_max_repodesc_len = atoi(value);
 	else if (!strcmp(name, "max-commit-count"))
 		cgit_max_commit_count = atoi(value);
+	else if (!strcmp(name, "repo.group"))
+		cgit_repo_group = xstrdup(value);
 	else if (!strcmp(name, "repo.url"))
 		cgit_repo = add_repo(value);
 	else if (!strcmp(name, "repo.name"))

ui-repolist.c

@@ -12,6 +12,7 @@ void cgit_print_repolist(struct cacheitem *item)
 {
 	struct repoinfo *repo;
 	int i;
+	char *last_group = NULL;
 
 	cgit_print_docstart(cgit_root_title, item);
 	cgit_print_pageheader(cgit_root_title, 0);
@@ -25,6 +26,15 @@ void cgit_print_repolist(struct cacheitem *item)
 
 	for (i=0; i<cgit_repolist.count; i++) {
 		repo = &cgit_repolist.repos[i];
+		if ((last_group == NULL && repo->group != NULL) ||
+		    (last_group != NULL && repo->group == NULL) ||
+		    (last_group != NULL && repo->group!= NULL &&
+		     strcmp(repo->group, last_group))) {
+			html("<tr><td colspan='4' class='repogroup'>");
+			html_txt(repo->group);
+			html("</td></tr>");
+			last_group = repo->group;
+		}
 		html("<tr><td>");
 		html_link_open(cgit_repourl(repo->url), NULL, NULL);
 		html_txt(repo->name);