some fixes

src/daemon.vala

@@ -411,7 +411,6 @@ namespace Pamac {
 					unowned Alpm.Package? pkg = alpm_handle.localdb.get_pkg (pkgname);
 					if (pkg != null) {
 						pkg.reason = (Alpm.Package.Reason) reason;
-						refresh_handle ();
 					}
 				}
 				set_pkgreason_finished ();
@@ -419,18 +418,19 @@ namespace Pamac {
 		}
 
 		private void refresh () {
+			current_error = ErrorInfos ();
 			if (!databases_lock_mutex.trylock ()) {
 				// Wait for pacman to finish
 				emit_event (0, 0, {});
 				databases_lock_mutex.lock ();
 			}
 			if (cancellable.is_cancelled ()) {
-				databases_lock_mutex.unlock ();
 				cancellable.reset ();
+				refresh_finished (true);
+				databases_lock_mutex.unlock ();
 				return;
 			}
 			write_log_file ("synchronizing package lists");
-			current_error = ErrorInfos ();
 			int force = (force_refresh) ? 1 : 0;
 			uint success = 0;
 			cancellable.reset ();
@@ -440,7 +440,8 @@ namespace Pamac {
 			while (syncdbs != null) {
 				unowned Alpm.DB db = syncdbs.data;
 				if (cancellable.is_cancelled ()) {
-					refresh_handle ();
+					delete curl;
+					alpm_handle.dbext = ".db";
 					refresh_finished (false);
 					databases_lock_mutex.unlock ();
 					return;
@@ -460,7 +461,7 @@ namespace Pamac {
 				syncdbs.next ();
 			}
 			delete curl;
-			refresh_handle ();
+			alpm_handle.dbext = ".db";
 			// We should always succeed if at least one DB was upgraded - we may possibly
 			// fail later with unresolved deps, but that should be rare, and would be expected
 			if (success == 0) {
@@ -1488,17 +1489,17 @@ namespace Pamac {
 		}
 
 		private bool trans_init (Alpm.TransFlag flags) {
+			current_error = ErrorInfos ();
 			if (!databases_lock_mutex.trylock ()) {
 				// Wait for pacman to finish
 				emit_event (0, 0, {});
 				databases_lock_mutex.lock ();
 			}
 			if (cancellable.is_cancelled ()) {
-				databases_lock_mutex.unlock ();
 				cancellable.reset ();
+				databases_lock_mutex.unlock ();
 				return false;
 			}
-			current_error = ErrorInfos ();
 			cancellable.reset ();
 			if (alpm_handle.trans_init (flags) == -1) {
 				Alpm.Errno errno = alpm_handle.errno ();
@@ -1637,14 +1638,19 @@ namespace Pamac {
 				return false;
 			} else if (alpm_handle.trans_add_pkg (pkg) == -1) {
 				Alpm.Errno errno = alpm_handle.errno ();
-				current_error.errno = (uint) errno;
+				if (errno == Alpm.Errno.TRANS_DUP_TARGET || errno == Alpm.Errno.PKG_IGNORED) {
-				current_error.message = _("Failed to prepare transaction");
+					// just skip duplicate or ignored targets
-				if (errno != 0) {
+					return true;
-					current_error.details = { "%s: %s".printf (pkg->name, Alpm.strerror (errno)) };
+				} else {
+					current_error.errno = (uint) errno;
+					current_error.message = _("Failed to prepare transaction");
+					if (errno != 0) {
+						current_error.details = { "%s: %s".printf (pkg->name, Alpm.strerror (errno)) };
+					}
+					// free the package because it will not be used
+					delete pkg;
+					return false;
 				}
-				// free the package because it will not be used
-				delete pkg;
-				return false;
 			}
 			return true;
 		}
@@ -1658,12 +1664,17 @@ namespace Pamac {
 				return false;
 			} else if (alpm_handle.trans_remove_pkg (pkg) == -1) {
 				Alpm.Errno errno = alpm_handle.errno ();
-				current_error.errno = (uint) errno;
+				if (errno == Alpm.Errno.TRANS_DUP_TARGET) {
-				current_error.message = _("Failed to prepare transaction");
+					// just skip duplicate targets
-				if (errno != 0) {
+					return true;
-					current_error.details = { "%s: %s".printf (pkg.name, Alpm.strerror (errno)) };
+				} else {
+					current_error.errno = (uint) errno;
+					current_error.message = _("Failed to prepare transaction");
+					if (errno != 0) {
+						current_error.details = { "%s: %s".printf (pkg.name, Alpm.strerror (errno)) };
+					}
+					return false;
 				}
-				return false;
 			}
 			return true;
 		}
@@ -1824,7 +1835,7 @@ namespace Pamac {
 				alpm_handle.logcb = (Alpm.LogCallBack) cb_log;
 				lockfile = GLib.File.new_for_path (alpm_handle.lockfile);
 				// fake aur db
-				alpm_handle.register_syncdb ("aur", Alpm.Signature.Level.PACKAGE_OPTIONAL | Alpm.Signature.Level.DATABASE_OPTIONAL);
+				alpm_handle.register_syncdb ("aur", 0);
 				// add to_build in to_install for the fake trans prpeapre
 				foreach (unowned string name in to_build) {
 					to_install += name;
@@ -2085,7 +2096,6 @@ namespace Pamac {
 				// cancel the download return an EXTERNAL_DOWNLOAD error
 				if (errno == Alpm.Errno.EXTERNAL_DOWNLOAD && cancellable.is_cancelled ()) {
 					trans_release ();
-					refresh_handle ();
 					trans_commit_finished (false);
 					return;
 				}
@@ -2136,20 +2146,14 @@ namespace Pamac {
 				success = false;
 			}
 			trans_release ();
-			refresh_handle ();
-			bool need_refresh = false;
 			to_install_as_dep.foreach_remove ((pkgname, val) => {
 				unowned Alpm.Package? pkg = alpm_handle.localdb.get_pkg (pkgname);
 				if (pkg != null) {
 					pkg.reason = Alpm.Package.Reason.DEPEND;
-					need_refresh = true;
 					return true; // remove current pkgname
 				}
 				return false;
 			});
-			if (need_refresh) {
-				refresh_handle ();
-			}
 			trans_commit_finished (success);
 		}
 
@@ -2167,7 +2171,6 @@ namespace Pamac {
 						message = _("Authentication failed")
 					};
 					trans_release ();
-					refresh_handle ();
 					trans_commit_finished (false);
 				}
 			});

src/manager_window.vala

@@ -279,8 +279,12 @@ namespace Pamac {
 
 			transaction = new Transaction (this as Gtk.ApplicationWindow);
 			transaction.mode = Mode.MANAGER;
-			transaction.start_transaction.connect (on_start_transaction);
+			transaction.start_waiting.connect (on_start_waiting);
+			transaction.stop_waiting.connect (on_stop_waiting);
+			transaction.start_downloading.connect (on_start_downloading);
+			transaction.stop_downloading.connect (on_stop_downloading);
 			transaction.start_building.connect (on_start_building);
+			transaction.stop_building.connect (on_stop_building);
 			transaction.important_details_outpout.connect (on_important_details_outpout);
 			transaction.finished.connect (on_transaction_finished);
 			transaction.write_pamac_config_finished.connect (on_write_pamac_config_finished);
@@ -1631,12 +1635,14 @@ namespace Pamac {
 		void on_apply_button_clicked () {
 			transaction_running = true;
 			apply_button.sensitive = false;
+			cancel_button.sensitive = false;
 			transaction.run ();
 		}
 
 		[GtkCallback]
 		void on_cancel_button_clicked () {
-			if (transaction_running) {
+			if (transaction_running || refreshing) {
+				transaction_running = false;
 				transaction.cancel ();
 			} else {
 				transaction.clear_lists ();
@@ -1665,7 +1671,19 @@ namespace Pamac {
 			transaction_infobox.show_all ();
 		}
 
-		void on_start_transaction () {
+		void on_start_waiting () {
+			cancel_button.sensitive = true;
+		}
+
+		void on_stop_waiting () {
+			set_pendings_operations ();
+		}
+
+		void on_start_downloading () {
+			cancel_button.sensitive = true;
+		}
+
+		void on_stop_downloading () {
 			cancel_button.sensitive = false;
 		}
 
@@ -1673,6 +1691,10 @@ namespace Pamac {
 			cancel_button.sensitive = true;
 		}
 
+		void on_stop_building () {
+			cancel_button.sensitive = false;
+		}
+
 		void on_important_details_outpout (bool must_show) {
 			if (must_show) {
 				main_stack.visible_child_name = "term";

src/transaction.vala

@@ -154,8 +154,12 @@ namespace Pamac {
 		//parent window
 		public Gtk.ApplicationWindow? application_window { get; private set; }
 
-		public signal void start_transaction ();
+		public signal void start_waiting ();
+		public signal void stop_waiting ();
+		public signal void start_downloading ();
+		public signal void stop_downloading ();
 		public signal void start_building ();
+		public signal void stop_building ();
 		public signal void important_details_outpout (bool must_show);
 		public signal void alpm_handle_refreshed ();
 		public signal void finished (bool success);
@@ -395,11 +399,13 @@ namespace Pamac {
 		void reset_progress_box (string action) {
 			show_in_term (action);
 			progress_box.action_label.label = action;
+			stop_progressbar_pulse ();
 			progress_box.progressbar.fraction = 0;
 			progress_box.progressbar.text = "";
 		}
 
 		void start_progressbar_pulse () {
+			stop_progressbar_pulse ();
 			pulse_timeout_id = Timeout.add (500, (GLib.SourceFunc) progress_box.progressbar.pulse);
 		}
 
@@ -1062,7 +1068,7 @@ namespace Pamac {
 																	out status);
 										if (status == 0) {
 											foreach (unowned string path in standard_output.split ("\n")) {
-												if (path != "") {
+												if (path != "" && !(path in built_pkgs)) {
 													built_pkgs += path;
 												}
 											}
@@ -1074,6 +1080,7 @@ namespace Pamac {
 								}
 							}
 						}
+						stop_building ();
 					}
 				} else {
 					status = 1;
@@ -1107,6 +1114,9 @@ namespace Pamac {
 				}
 			}
 			show_in_term ("\n" + dgettext (null, "Transaction cancelled") + ".\n");
+			progress_box.action_label.label = "";
+			stop_progressbar_pulse ();
+			stop_waiting ();
 			warning_textbuffer = new StringBuilder ();
 		}
 
@@ -1134,12 +1144,12 @@ namespace Pamac {
 				case 0: //special case: wait for database lock
 					action = dgettext (null, "Waiting for another package manager to quit") + "...";
 					start_progressbar_pulse ();
+					start_waiting ();
 					break;
 				case 1: //Alpm.Event.Type.CHECKDEPS_START
 					action = dgettext (null, "Checking dependencies") + "...";
 					break;
 				case 3: //Alpm.Event.Type.FILECONFLICTS_START
-					start_transaction ();
 					action = dgettext (null, "Checking file conflicts") + "...";
 					break;
 				case 5: //Alpm.Event.Type.RESOLVEDEPS_START
@@ -1148,9 +1158,6 @@ namespace Pamac {
 				case 7: //Alpm.Event.Type.INTERCONFLICTS_START
 					action = dgettext (null, "Checking inter-conflicts") + "...";
 					break;
-				case 9: //Alpm.Event.Type.TRANSACTION_START
-					start_transaction ();
-					break;
 				case 11: //Alpm.Event.Type.PACKAGE_OPERATION_START
 					switch (secondary_event) {
 						// special case handle differently
@@ -1213,8 +1220,13 @@ namespace Pamac {
 					important_details_outpout (false);
 					break;
 				case 25: //Alpm.Event.Type.RETRIEVE_START
+					start_downloading ();
 					action = dgettext (null, "Downloading") + "...";
 					break;
+				case 26: //Alpm.Event.Type.RETRIEVE_DONE
+				case 27: //Alpm.Event.Type.RETRIEVE_FAILED
+					stop_downloading ();
+					break;
 				case 28: //Alpm.Event.Type.PKGDOWNLOAD_START
 					// special case handle differently
 					show_in_term (dgettext (null, "Downloading %s").printf (details[0]) + "...");
@@ -1248,7 +1260,6 @@ namespace Pamac {
 				case 41: //Alpm.Event.Type.HOOK_START
 					switch (secondary_event) {
 						case 1: //Alpm.HookWhen.PRE_TRANSACTION
-							start_transaction ();
 							action = dgettext (null, "Running pre-transaction hooks") + "...";
 							break;
 						case 2: //Alpm.HookWhen.POST_TRANSACTION

src/updater_window.vala

@@ -89,8 +89,12 @@ namespace Pamac {
 
 			transaction = new Transaction (this as Gtk.ApplicationWindow);
 			transaction.mode = Mode.UPDATER;
-			transaction.start_transaction.connect (on_start_transaction);
+			transaction.start_waiting.connect (on_start_waiting);
+			transaction.stop_waiting.connect (on_stop_waiting);
+			transaction.start_downloading.connect (on_start_downloading);
+			transaction.stop_downloading.connect (on_stop_downloading);
 			transaction.start_building.connect (on_start_building);
+			transaction.stop_building.connect (on_stop_building);
 			transaction.important_details_outpout.connect (on_important_details_output);
 			transaction.finished.connect (populate_updates_list);
 			transaction.get_updates_finished.connect (on_get_updates_finished);
@@ -262,7 +266,19 @@ namespace Pamac {
 			transaction.cancel ();
 		}
 
-		void on_start_transaction () {
+		void on_start_waiting () {
+			cancel_button.sensitive = true;
+		}
+
+		void on_stop_waiting () {
+			populate_updates_list ();
+		}
+
+		void on_start_downloading () {
+			cancel_button.sensitive = true;
+		}
+
+		void on_stop_downloading () {
 			cancel_button.sensitive = false;
 		}
 
@@ -270,6 +286,10 @@ namespace Pamac {
 			cancel_button.sensitive = true;
 		}
 
+		void on_stop_building () {
+			cancel_button.sensitive = false;
+		}
+
 		void on_important_details_output (bool must_show) {
 			if (must_show) {
 				stackswitcher.visible = false;