Removing previously installed platform on upgrade

app/src/cc/arduino/packages/contributions/ui/ContributedPlatformTableCell.java

@@ -98,7 +98,7 @@ public class ContributedPlatformTableCell extends InstallerTableCell {
     installButton.addActionListener(new ActionListener() {
       @Override
       public void actionPerformed(ActionEvent e) {
-        onInstall(editorValue.getSelected());
+        onInstall(editorValue.getSelected(), editorValue.getInstalled());
       }
     });
 
@@ -129,7 +129,7 @@ public class ContributedPlatformTableCell extends InstallerTableCell {
     // Empty
   }
 
-  protected void onInstall(ContributedPlatform contributedPlatform) {
+  protected void onInstall(ContributedPlatform contributedPlatform, ContributedPlatform installed) {
     // Empty
   }
 

app/src/cc/arduino/packages/contributions/ui/ContributionIndexTableModel.java

@@ -28,14 +28,17 @@
  */
 package cc.arduino.packages.contributions.ui;
 
-import java.util.ArrayList;
-import java.util.List;
-
 import cc.arduino.packages.contributions.ContributedPackage;
 import cc.arduino.packages.contributions.ContributedPlatform;
 import cc.arduino.packages.contributions.ContributionsIndex;
 import cc.arduino.ui.FilteredAbstractTableModel;
 
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+
+import static processing.app.I18n._;
+
 @SuppressWarnings("serial")
 public class ContributionIndexTableModel extends FilteredAbstractTableModel {
 
@@ -69,9 +72,21 @@ public class ContributionIndexTableModel extends FilteredAbstractTableModel {
     }
 
     public ContributedPlatform getInstalled() {
-      for (ContributedPlatform plat : releases)
-        if (plat.isInstalled())
-          return plat;
+      List<ContributedPlatform> installedPlatforms = new LinkedList<ContributedPlatform>();
+      for (ContributedPlatform platform : releases) {
+        if (platform.isInstalled()) {
+          installedPlatforms.add(platform);
+        }
+      }
+
+      if (installedPlatforms.size() > 1) {
+        throw new IllegalStateException(_("More than one platform is currently installed! Only one can be installed at any given time"));
+      }
+
+      if (!installedPlatforms.isEmpty()) {
+        return installedPlatforms.get(0);
+      }
+
       return null;
     }
 
@@ -112,9 +127,9 @@ public class ContributionIndexTableModel extends FilteredAbstractTableModel {
 
   private List<ContributedPlatformReleases> contributions = new ArrayList<ContributedPlatformReleases>();
 
-  private String[] columnNames = { "Description" };
+  private String[] columnNames = {"Description"};
 
-  private Class<?>[] columnTypes = { ContributedPlatform.class };
+  private Class<?>[] columnTypes = {ContributedPlatform.class};
 
   private ContributionsIndex index;
 
@@ -141,11 +156,11 @@ public class ContributionIndexTableModel extends FilteredAbstractTableModel {
   /**
    * Check if <b>string</b> contains all the substrings in <b>set</b>. The
    * compare is case insensitive.
-   * 
+   *
    * @param string
    * @param set
    * @return <b>true<b> if all the strings in <b>set</b> are contained in
-   *         <b>string</b>.
+   * <b>string</b>.
    */
   private boolean stringContainsAll(String string, String set[]) {
     if (set == null)

app/src/cc/arduino/packages/contributions/ui/ContributionManagerUI.java

@@ -63,8 +63,8 @@ public class ContributionManagerUI extends InstallerJDialog {
   protected InstallerTableCell createCellEditor() {
     return new ContributedPlatformTableCell() {
       @Override
-      protected void onInstall(ContributedPlatform selectedPlatform) {
-        onInstallPressed(selectedPlatform);
+      protected void onInstall(ContributedPlatform selectedPlatform, ContributedPlatform installed) {
+        onInstallPressed(selectedPlatform, installed);
       }
 
       @Override
@@ -146,13 +146,16 @@ public class ContributionManagerUI extends InstallerJDialog {
     installerThread.start();
   }
 
-  public void onInstallPressed(final ContributedPlatform platform) {
+  public void onInstallPressed(final ContributedPlatform platformToInstall, final ContributedPlatform platformToRemove) {
     installerThread = new Thread(new Runnable() {
       @Override
       public void run() {
         try {
           setProgressVisible(true);
-          installer.install(platform);
+          installer.install(platformToInstall);
+          if (platformToRemove != null) {
+            installer.remove(platformToRemove);
+          }
         } catch (Exception e) {
           // TODO Show ERROR
           e.printStackTrace();

app/src/processing/app/Base.java

@@ -1123,7 +1123,7 @@ public class Base {
     rebuildExamplesMenu(Editor.examplesMenu);
   }
 
-  private void openInstallBoardDialog() {
+  private void openInstallBoardDialog() throws Exception {
     // Create dialog for contribution manager
     @SuppressWarnings("serial")
     ContributionManagerUI managerUI = new ContributionManagerUI(activeEditor) {
@@ -1139,14 +1139,9 @@ public class Base {
     // Installer dialog is modal, waits here until closed
 
     // Reload all boards (that may have been installed/updated/removed)
-    try {
-      BaseNoGui.initPackages();
-      rebuildBoardsMenu();
-      onBoardOrPortChange();
-    } catch (Exception e) {
-      // TODO Auto-generated catch block
-      e.printStackTrace();
-    }
+    BaseNoGui.initPackages();
+    rebuildBoardsMenu();
+    onBoardOrPortChange();
   }
 
   public void rebuildBoardsMenu() throws Exception {
@@ -1158,7 +1153,12 @@ public class Base {
     @SuppressWarnings("serial")
     Action runInstaller = new AbstractAction("Install boards...") {
       public void actionPerformed(ActionEvent actionevent) {
-        openInstallBoardDialog();
+        try {
+          openInstallBoardDialog();
+        } catch (Exception e) {
+          //TODO show error
+          e.printStackTrace();
+        }
       }
     };
     boardMenu.add(new JMenuItem(runInstaller));