[mirrors_config] re-enable 'pacman-mirrorlist' support

- see also: https://github.com/manjaro/pamac/issues/258
- this is only needed for Archbased Distros like Antergos

src/mirrors_config.vala

@@ -19,14 +19,17 @@
 
 namespace Pamac {
 	class MirrorsConfig {
+		AlpmPackage pkg = transaction.find_installed_satisfier ("pacman-mirrors");
 		string conf_path;
 		GLib.List<string> _countries ;
 
+		public string mirrorlists_dir { get; private set; }
 		public string choosen_generation_method { get; private set; }
 		public string choosen_country { get; private set; }
 		public unowned GLib.List<string> countries {
 			get {
 				try {
+					if (pkg != "") {
 						string countries_str;
 						int status;
 						Process.spawn_command_line_sync ("pacman-mirrors -l",
@@ -39,6 +42,16 @@ namespace Pamac {
 							_countries.append (country);
 							}
 						}
+					} else {
+						var directory = GLib.File.new_for_path (mirrorlists_dir);
+						var enumerator = directory.enumerate_children (FileAttribute.STANDARD_NAME, 0);
+						FileInfo file_info;
+						_countries = new GLib.List<string> ();
+						while ((file_info = enumerator.next_file ()) != null) {
+							_countries.append(file_info.get_name ());
+						}
+						_countries.sort (strcmp);
+					}
 				} catch (SpawnError e) {
 					stdout.printf ("Error: %s\n", e.message);
 				}
@@ -47,6 +60,28 @@ namespace Pamac {
 		}
 
 
+		public string mirrorlists_dir { get; private set; }
+		public string choosen_generation_method { get; private set; }
+		public string choosen_country { get; private set; }
+		public unowned GLib.List<string> countries {
+			get {
+				try {
+					var directory = GLib.File.new_for_path (mirrorlists_dir);
+					var enumerator = directory.enumerate_children (FileAttribute.STANDARD_NAME, 0);
+					FileInfo file_info;
+					_countries = new GLib.List<string> ();
+					while ((file_info = enumerator.next_file ()) != null) {
+						_countries.append(file_info.get_name ());
+					}
+					_countries.sort (strcmp);
+				} catch (Error e) {
+					stderr.printf ("%s\n", e.message);
+				}
+				return _countries;
+			}
+		}
+
+
 		public MirrorsConfig (string path) {
 			conf_path = path;
 			reload ();
@@ -56,6 +91,7 @@ namespace Pamac {
 			// set default options
 			choosen_generation_method = "rank";
 			choosen_country = "ALL";
+			mirrorlists_dir = "/etc/pacman.d/mirrors";
 			parse_file (conf_path);
 		}
 

src/preferences_dialog.vala

@@ -102,7 +102,8 @@ namespace Pamac {
 			transaction.write_pamac_config_finished.connect (on_write_pamac_config_finished);
 
 			AlpmPackage pkg = transaction.find_installed_satisfier ("pacman-mirrors");
-			if (pkg.name == "") {
+			AlpmPackage pkg_ml = transaction.find_installed_satisfier ("pacman-mirrorlist");
+			if (pkg.name == "" || pkg_ml.name == "") {
 				mirrors_config_box.visible = false;
 			} else {
 				var mirrors_config = new MirrorsConfig ("/etc/pacman-mirrors.conf");