From 299ea84e251571cee9a6dcf677d9d1e68d240c76 Mon Sep 17 00:00:00 2001
From: Hisham Muhammad <hisham@gobolinux.org>
Date: Tue, 2 Jan 2018 16:43:03 -0200
Subject: Catch error when git fails to read the hash

---
 src/luarocks/fetch/git.lua | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src')

diff --git a/src/luarocks/fetch/git.lua b/src/luarocks/fetch/git.lua
index 2b8adc78..ff66f7fe 100644
--- a/src/luarocks/fetch/git.lua
+++ b/src/luarocks/fetch/git.lua
@@ -55,6 +55,9 @@ local function git_identifier(git_cmd, ver)
       return nil
    end
    local date_hash = util.popen_read(fs.Q(git_cmd).." log --pretty=format:'%ai %h' -n 1")
+   if not date_hash then
+      return nil
+   end
    local date, time, tz, hash = date_hash:match("([^%s]+) ([^%s]+) ([^%s]+) ([^%s]+)")
    date = date:gsub("%-", "")
    time = time:gsub(":", "")
-- 
cgit v1.2.3-55-g6feb