From 8d588f9c0f6c884c972c65635f3b503403d293f8 Mon Sep 17 00:00:00 2001
From: Hisham Muhammad <hisham@gobolinux.org>
Date: Mon, 12 Jan 2015 22:41:42 -0200
Subject: Catch error if filename is a directory

---
 src/luarocks/persist.lua | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/luarocks/persist.lua b/src/luarocks/persist.lua
index 87db96b2..39e1e71c 100644
--- a/src/luarocks/persist.lua
+++ b/src/luarocks/persist.lua
@@ -14,8 +14,12 @@ local function run_file(filename, env)
    if not fd then
       return nil, err, "open"
    end
-   local str = fd:read("*a"):gsub("^#![^\n]*\n", "")   
+   local str, err = fd:read("*a")
    fd:close()
+   if not str then
+      return nil, err, "open"
+   end
+   str = str:gsub("^#![^\n]*\n", "")
    local chunk, ran
    if _VERSION == "Lua 5.1" then -- Lua 5.1
       chunk, err = loadstring(str, filename)
-- 
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