Fix Linux editor detection

README.md

@@ -38,9 +38,9 @@ It comes with the following main features:
 - Exclusively uses established CLI tools and therefore works out of the box on most systems and doesn't require any additional setup
 - Allows you to customize the launched shell's init environment
 
-#### Simple connection Management
+#### All your connections in one place
 
-- Easily create and manage all kinds of remote connections
+- Easily create and manage all kinds of remote connections at one location
 - Securely stores all information exclusively on your computer and encrypts all secret information
 - Allows you to share connection configurations to any other trusted party through shareable URLs
 

app/src/main/java/io/xpipe/app/prefs/ExternalEditorType.java

@@ -1,7 +1,10 @@
 package io.xpipe.app.prefs;
 
 import io.xpipe.core.process.OsType;
+import io.xpipe.core.process.ShellProcessControl;
 import io.xpipe.core.process.ShellTypes;
+import io.xpipe.core.store.ShellStore;
+import io.xpipe.extension.event.ErrorEvent;
 import io.xpipe.extension.prefs.PrefsChoiceValue;
 import io.xpipe.extension.util.ApplicationHelper;
 import io.xpipe.extension.util.WindowsRegistry;
@@ -136,6 +139,15 @@ public abstract class ExternalEditorType implements PrefsChoiceValue {
             new ProcessBuilder(list).start();
         }
 
+        public boolean isAvailable() {
+            try (ShellProcessControl pc = ShellStore.local().create().start()) {
+                return pc.executeBooleanSimpleCommand(pc.getShellType().getWhichCommand(command));
+            } catch (Exception e) {
+                ErrorEvent.fromThrowable(e).omit().handle();
+                return false;
+            }
+        }
+
         @Override
         public boolean isSelectable() {
             return OsType.getLocal().equals(OsType.LINUX);