New updater notification and minor OsuDB fix.

- A bar notification is now shown after opsu! updates.
- Insert the current database version into the beatmap cache upon creation (fixes the initial version check) and only update the version if necessary.

Signed-off-by: Jeffrey Han <itdelatrisu@gmail.com>

src/itdelatrisu/opsu/Opsu.java

@@ -137,6 +137,10 @@ public class Opsu extends StateBasedGame {
 		// initialize databases
 		DBController.init();
 
+		// check if just updated
+		if (args.length >= 2)
+			Updater.get().setUpdateInfo(args[0], args[1]);
+
 		// check for updates
 		new Thread() {
 			@Override

src/itdelatrisu/opsu/db/OsuDB.java

@@ -127,6 +127,10 @@ public class OsuDB {
 				"PRAGMA locking_mode = EXCLUSIVE; " +
 				"PRAGMA journal_mode = WAL;";
 			stmt.executeUpdate(sql);
+
+			// set the version key, if empty
+			sql = String.format("INSERT OR IGNORE INTO info(key, value) VALUES('version', '%s')", DATABASE_VERSION);
+			stmt.executeUpdate(sql);
 		} catch (SQLException e) {
 			ErrorHandler.error("Could not create beatmap database.", e, true);
 		}
@@ -145,7 +149,7 @@ public class OsuDB {
 			rs.close();
 
 			// if different from current version, clear the database
-			if (!version.equals(DATABASE_VERSION))
+			if (!version.equals(DATABASE_VERSION)) {
 				clearDatabase();
 
 				// update version
@@ -153,6 +157,7 @@ public class OsuDB {
 				ps.setString(1, DATABASE_VERSION);
 				ps.executeUpdate();
 				ps.close();
+			}
 		} catch (SQLException e) {
 			ErrorHandler.error("Beatmap database version checks failed.", e, true);
 		}

src/itdelatrisu/opsu/downloads/Updater.java

@@ -97,6 +97,9 @@ public class Updater {
 	/** The current and latest versions. */
 	private DefaultArtifactVersion currentVersion, latestVersion;
 
+	/** The version information if the program was just updated. */
+	private String updatedFromVersion, updatedToVersion;
+
 	/** The build date. */
 	private int buildDate = -1;
 
@@ -148,6 +151,31 @@ public class Updater {
 		return buildDate;
 	}
 
+	/**
+	 * Sets the version information if the program was just updated.
+	 * @param fromVersion the previous version
+	 * @param toVersion the new version
+	 */
+	public void setUpdateInfo(String fromVersion, String toVersion) {
+		this.updatedFromVersion = fromVersion;
+		this.updatedToVersion = toVersion;
+	}
+
+	/**
+	 * Returns whether or not the program was just updated.
+	 */
+	public boolean justUpdated() { return (updatedFromVersion != null && updatedToVersion != null); }
+
+	/**
+	 * Returns the version the program was just updated from, or null if not updated.
+	 */
+	public String updatedFromVersion() { return (justUpdated()) ? updatedFromVersion : null; }
+
+	/**
+	 * Returns the version the program was just updated to, or null if not updated.
+	 */
+	public String updatedToVersion() { return (justUpdated()) ? updatedToVersion : null; }
+
 	/**
 	 * Returns the version from a set of properties.
 	 * @param props the set of properties
@@ -248,7 +276,10 @@ public class Updater {
 
 		try {
 			// TODO: it is better to wait for the process? is this portable?
-			ProcessBuilder pb = new ProcessBuilder("java", "-jar", download.getLocalPath());
+			ProcessBuilder pb = new ProcessBuilder(
+					"java", "-jar", download.getLocalPath(),
+					currentVersion.toString(), latestVersion.toString()
+			);
 			pb.start();
 		} catch (IOException e) {
 			status = Status.INTERNAL_ERROR;

src/itdelatrisu/opsu/states/MainMenu.java

@@ -97,8 +97,8 @@ public class MainMenu extends BasicGameState {
 	/** Background alpha level (for fade-in effect). */
 	private float bgAlpha = 0f;
 
-	/** Whether or not an update notification was already sent. */
+	/** Whether or not a notification was already sent upon entering. */
-	private boolean updateNotification = false;
+	private boolean enterNotification = false;
 
 	/** Music position bar coordinates and dimensions. */
 	private float musicBarX, musicBarY, musicBarWidth, musicBarHeight;
@@ -388,9 +388,14 @@ public class MainMenu extends BasicGameState {
 	public void enter(GameContainer container, StateBasedGame game)
 			throws SlickException {
 		UI.enter();
-		if (!updateNotification && Updater.get().getStatus() == Updater.Status.UPDATE_AVAILABLE) {
+		if (!enterNotification) {
+			if (Updater.get().getStatus() == Updater.Status.UPDATE_AVAILABLE) {
 				UI.sendBarNotification("An opsu! update is available.");
-			updateNotification = true;
+				enterNotification = true;
+			} else if (Updater.get().justUpdated()) {
+				UI.sendBarNotification("opsu! is now up to date!");
+				enterNotification = true;
+			}
 		}
 
 		// reset button hover states if mouse is not currently hovering over the button