From 00e21bfdf7e732f270cc043ed1f38cf1248c46d2 Mon Sep 17 00:00:00 2001
From: Andrew Janke <andrew@apjanke.net>
Date: Sat, 26 May 2018 05:30:35 -0400
Subject: [PATCH] brew: Conciser error when run from nonexistent directory

---
 bin/brew | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/bin/brew b/bin/brew
index 4a874ab9a7..92febbbee8 100755
--- a/bin/brew
+++ b/bin/brew
@@ -1,6 +1,12 @@
 #!/bin/bash
 set +o posix
 
+# Fail fast with concise message when cwd does not exist
+if ! [[ -d "$PWD" ]]; then
+  echo "Error: The current working directory doesn't exist, cannot proceed." >&2
+  exit 1
+fi
+
 quiet_cd() {
   cd "$@" >/dev/null
 }