WIP: ssh-agent support using jsch-agent-proxy

desktop/src/main/java/net/monarchpass/piecannon/App.java

@@ -13,11 +13,19 @@ import java.util.logging.Level;
 
 import net.monarchpass.piecannon.util.ServerFactory;
 
+import com.jcraft.jsch.IdentityRepository;
+import com.jcraft.jsch.agentproxy.Connector;
+import com.jcraft.jsch.agentproxy.AgentProxyException;
+import com.jcraft.jsch.agentproxy.RemoteIdentityRepository;
+import com.jcraft.jsch.agentproxy.ConnectorFactory;
+
 @Log
 public class App {
     public static void main (final String... args) throws Exception {
         final File serversJson = getServersJson();
         final PieCannon cannon = new PieCannon();
+        //cannon.getServerFactory().setIdentityRepository(createIdentityRepository());
+
         final List<Server> servers = cannon.loadServersFrom(serversJson);
         log.log(Level.INFO, "{0} servers loaded from {1}", new Object[] {
             servers.size(), serversJson
@@ -53,4 +61,20 @@ public class App {
     public static File getDataDirectory () {
         return new File(BaseDirectory.get(BaseDirectory.XDG_DATA_HOME), "piecannon");
     }
+    
+    private static IdentityRepository createIdentityRepository () {
+        try {
+            final ConnectorFactory connectorFactory = ConnectorFactory.getDefault();
+            final Connector connector = connectorFactory.createConnector();
+
+            if (connector != null) {
+                return new RemoteIdentityRepository(connector);
+            }
+        }
+        catch (final AgentProxyException exception) {
+            log.log(Level.WARNING, "Failed to create agent identity repository", exception);
+        }
+        
+        return null;
+    }
 }