From 2ad65f4512c0751076630855e61e6f9d0e2dd81f Mon Sep 17 00:00:00 2001
From: Knut Ahlers <knut@ahlers.me>
Date: Sun, 11 Feb 2018 13:07:54 +0100
Subject: [PATCH] Improve file handling in check_config

Signed-off-by: Knut Ahlers <knut@ahlers.me>
---
 bin/check_config | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/bin/check_config b/bin/check_config
index 26f4131..7f8b657 100755
--- a/bin/check_config
+++ b/bin/check_config
@@ -31,7 +31,10 @@ STAT_PARM="-c %Y"
 NEED_UPDATE=()
 # Check repos for updates
 for REPO in ${REPOS[@]}; do
-  if [ $(( $(date +%s) - $(stat ${STAT_PARM} .cfg/${REPO}/FETCH_HEAD) )) -gt ${FETCH_INTERVAL} ] || [ $(wc -c ~/.cfg/${REPO}/FETCH_HEAD | cut -d' ' -f1) -eq 0 ]; then
+  LAST_FETCH=0
+  [ -f ~/.cfg/${REPO}/FETCH_HEAD ] && LAST_FETCH=$(stat ${STAT_PARM} ~/.cfg/${REPO}/FETCH_HEAD)
+  if [ $(( $(date +%s) - ${LAST_FETCH} )) -gt ${FETCH_INTERVAL} ] || \
+    [ $(wc -c ~/.cfg/${REPO}/FETCH_HEAD | cut -d' ' -f1) -eq 0 ]; then
     vault-sshadd ${SSH_KEY} 2>&1 >/dev/null || { echo "Unable to load key ${SSH_KEY}"; exit 1; }
     gwrap fetch -q origin master
   fi