From 7c41907a7d3a1892907c09ff9d9a58f3d013d767 Mon Sep 17 00:00:00 2001
From: Kevin Sawicki <kevin@github.com>
Date: Sat, 9 Mar 2013 14:55:17 -0800
Subject: [PATCH] Check if path exists before moving

fs.move() no longer throws an exception if the target exists
so check for it explicitly when the dialog is confirmed.
---
 src/packages/tree-view/lib/tree-view.coffee | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/packages/tree-view/lib/tree-view.coffee b/src/packages/tree-view/lib/tree-view.coffee
index bf1df2b2e..fb3da5783 100644
--- a/src/packages/tree-view/lib/tree-view.coffee
+++ b/src/packages/tree-view/lib/tree-view.coffee
@@ -220,6 +220,14 @@ class TreeView extends ScrollView
       iconClass: 'move'
       onConfirm: (newPath) =>
         newPath = project.resolve(newPath)
+        if oldPath is newPath
+          dialog.close()
+          return
+
+        if fs.exists(newPath)
+          dialog.showError("Error: #{newPath} already exists. Try a different path.")
+          return
+
         directoryPath = fs.directory(newPath)
         try
           fs.makeTree(directoryPath) unless fs.exists(directoryPath)