Fix legacy shortcuts on Linux

Fixes shortcuts installed on Desktop or startup that used old launcher commands

Author: tresf

src/qz/deploy/LinuxDeploy.java

@@ -49,12 +49,16 @@ public boolean removeDesktopShortcut() {
 
     @Override
     public boolean hasStartupShortcut() {
-        return fileExists(System.getProperty("user.home") + "/.config/autostart/" + getShortcutName());
+        String target = System.getProperty("user.home") + "/.config/autostart/";
+        upgradeLegacyShortcut(target);
+        return fileExists(target + getShortcutName());
     }
 
     @Override
     public boolean hasDesktopShortcut() {
-        return fileExists(System.getProperty("user.home") + "/Desktop/" + getShortcutName());
+        String target = System.getProperty("user.home") + "/Desktop/";
+        upgradeLegacyShortcut(target);
+        return fileExists(target + getShortcutName());
     }
 
     /**
@@ -81,5 +85,19 @@ public String getShortcutName() {
     public String getAppPath() {
         return "/usr/share/applications/" + getShortcutName();
     }
+
+    /**
+     * Upgrade 1.9 shortcut to new 2.0 format
+     * @return
+     */
+    private boolean upgradeLegacyShortcut(String target) {
+        String shortcut = target + Constants.ABOUT_TITLE + ".desktop";
+        if (fileExists(shortcut)) {
+            if (ShellUtilities.execute(new String[] { "rm", shortcut })) {
+                return createShortcut(target);
+            }
+        }
+        return false;
+    }
 }