improve code to ensure to not leave with locked databases

src/Makefile

@@ -43,13 +43,20 @@ pamac-refresh: refresh.vala
 			--pkg=gio-2.0 \
 			refresh.vala
 
-pamac-tray: common.vala pamac_config.vala tray.vala
+pamac-tray: ../util/alpm-util.c common.vala alpm_config.vala pamac_config.vala tray.vala
 	valac 	-o pamac-tray \
+			--pkg=posix \
+			--pkg=libalpm \
 			--pkg=gio-2.0 \
 			--pkg=gtk+-3.0 \
 			--pkg=libnotify \
+			--vapidir=../vapi \
+			--Xcc=-I../util \
+			-X -D_FILE_OFFSET_BITS=64 \
 			-X -DGETTEXT_PACKAGE="pamac" \
+			../util/alpm-util.c \
 			common.vala \
+			alpm_config.vala \
 			pamac_config.vala \
 			tray.vala
 

src/daemon.vala

@@ -39,6 +39,7 @@ namespace Pamac {
 		private Json.Array aur_updates_results;
 		private bool intern_lock;
 		private bool extern_lock;
+		private GLib.File lockfile;
 
 		public signal void emit_event (uint primary_event, uint secondary_event, string[] details);
 		public signal void emit_providers (string depend, string[] providers);
@@ -64,8 +65,8 @@ namespace Pamac {
 			aur_updates_results = new Json.Array ();
 			intern_lock = false;
 			extern_lock = false;
-			Timeout.add (500, check_pacman_running);
 			refresh_handle ();
+			Timeout.add (500, check_pacman_running);
 		}
 
 		private void refresh_handle () {
@@ -81,12 +82,12 @@ namespace Pamac {
 				alpm_config.handle.dlcb = (DownloadCallBack) cb_download;
 				alpm_config.handle.totaldlcb = (TotalDownloadCallBack) cb_totaldownload;
 				alpm_config.handle.logcb = (LogCallBack) cb_log;
+				lockfile = GLib.File.new_for_path (alpm_config.handle.lockfile);
 			}
 			previous_percent = 0;
 		}
 
 		private bool check_pacman_running () {
-			var lockfile = GLib.File.new_for_path ("/var/lib/pacman/db.lck");
 			if (extern_lock) {
 				if (lockfile.query_exists () == false) {
 					extern_lock = false;
@@ -1066,8 +1067,6 @@ namespace Pamac {
 		}
 
 		public void trans_cancel () {
-			alpm_config.handle.trans_interrupt ();
-			alpm_config.handle.trans_release ();
 			// explicitly quit to avoid a crash
 			// this daemon should be auto-restarted
 			quit ();
@@ -1075,7 +1074,9 @@ namespace Pamac {
 
 		[DBus (no_reply = true)]
 		public void quit () {
-			GLib.File lockfile = GLib.File.new_for_path ("/var/lib/pacman/db.lck");
+			// be sure to not quit with locked databases
+			alpm_config.handle.trans_interrupt ();
+			alpm_config.handle.trans_release ();
 			if (lockfile.query_exists () == false) {
 				loop.quit ();
 			}

src/installer.vala

@@ -81,7 +81,7 @@ namespace Pamac {
 			run = app.get_is_remote ();
 			if (run) {
 				return run;
-			} else {
+			}
 			app = new Application ("org.manjaro.pamac.updater", 0);
 			try {
 				app.register ();
@@ -91,7 +91,6 @@ namespace Pamac {
 			run = app.get_is_remote ();
 			return run;
 		}
-		}
 
 		public void on_emit_trans_finished (bool error) {
 			transaction.stop_daemon ();

src/manager.vala

@@ -78,7 +78,7 @@ namespace Pamac {
 			run = app.get_is_remote ();
 			if (run) {
 				return run;
-			} else {
+			}
 			app = new Application ("org.manjaro.pamac.install", 0);
 			try {
 				app.register ();
@@ -89,7 +89,6 @@ namespace Pamac {
 			return run;
 		}
 	}
-	}
 
 	public static int main (string[] args) {
 		var manager = new Manager ();

src/tray.vala

@@ -40,6 +40,7 @@ namespace Pamac {
 		uint refresh_timeout_id;
 		Gtk.StatusIcon status_icon;
 		Gtk.Menu menu;
+		GLib.File lockfile;
 
 		public TrayIcon () {
 			application_id = "org.manjaro.pamac.tray";
@@ -56,7 +57,7 @@ namespace Pamac {
 		}
 
 		void stop_daemon () {
-			if (check_pamac_running () == false) {
+			if (check_pamac_running () == false && lockfile.query_exists () == false) {
 				try {
 					daemon.quit ();
 				} catch (IOError e) {
@@ -178,9 +179,9 @@ namespace Pamac {
 				stderr.printf ("%s\n", e.message);
 			}
 			run = app.get_is_remote ();
-			if (run)
+			if (run) {
 				return run;
-			else {
+			}
 			app = new Application ("org.manjaro.pamac.updater", 0);
 			try {
 				app.register ();
@@ -188,12 +189,20 @@ namespace Pamac {
 				stderr.printf ("%s\n", e.message);
 			}
 			run = app.get_is_remote ();
+			if (run) {
+				return run;
+			}
+			app = new Application ("org.manjaro.pamac.install", 0);
+			try {
+				app.register ();
+			} catch (GLib.Error e) {
+				stderr.printf ("%s\n", e.message);
+			}
+			run = app.get_is_remote ();
 			return run;
 		}
-		}
 
 		bool check_pacman_running () {
-			GLib.File lockfile = GLib.File.new_for_path ("/var/lib/pacman/db.lck");
 			if (locked) {
 				if (lockfile.query_exists () == false) {
 					locked = false;
@@ -237,10 +246,12 @@ namespace Pamac {
 
 			Notify.init (_("Update Manager"));
 
+			var alpm_config = new Alpm.Config ("/etc/pacman.conf");
+			lockfile = GLib.File.new_for_path (alpm_config.handle.lockfile);
+			Timeout.add (500, check_pacman_running);
 			refresh ();
 			var pamac_config = new Pamac.Config ("/etc/pamac.conf");
 			launch_refresh_timeout ((uint) pamac_config.refresh_period);
-			Timeout.add (500, check_pacman_running);
 
 			this.hold ();
 		}

src/updater.vala

@@ -74,7 +74,7 @@ namespace Pamac {
 			run = app.get_is_remote ();
 			if (run) {
 				return run;
-			} else {
+			}
 			app = new Application ("org.manjaro.pamac.install", 0);
 			try {
 				app.register ();
@@ -85,7 +85,6 @@ namespace Pamac {
 			return run;
 		}
 	}
-	}
 
 	public static int main (string[] args) {
 		var updater = new Updater ();