From ae81ed135342235e70fb5fb9a58536153e32ecb2 Mon Sep 17 00:00:00 2001
From: hyuraku <32809703+hyuraku@users.noreply.github.com>
Date: Tue, 20 Oct 2020 20:48:43 +0900
Subject: [PATCH] fix brew edit

---
 Library/Homebrew/dev-cmd/edit.rb | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/dev-cmd/edit.rb b/Library/Homebrew/dev-cmd/edit.rb
index 698a131ba0..5dae089592 100644
--- a/Library/Homebrew/dev-cmd/edit.rb
+++ b/Library/Homebrew/dev-cmd/edit.rb
@@ -28,7 +28,12 @@ module Homebrew
       EOS
     end
 
-    paths = args.named.to_formulae_paths.presence
+    paths = args.named.to_formulae_paths.select do |path|
+      next path if path.exist?
+
+      raise UsageError, "#{path} doesn't exist on disk. " \
+                        "Run #{Formatter.identifier("brew create $URL")} to create a new Formula!"
+    end.presence
 
     # If no brews are listed, open the project root in an editor.
     paths ||= [HOMEBREW_REPOSITORY]