From: martin f. krafft <madduck@madduck.net>
Date: Sat, 20 Mar 2010 11:59:15 +0000 (+0100)
Subject: implement lockfile handling
X-Git-Url: https://git.madduck.net/etc/offlineimap.git/commitdiff_plain/92fd48ede228e9fdd93d57622bf86a584c66c25c?ds=inline;hp=8a99dcfaf1b4364abbeca1cc8392c81f2a33634a

implement lockfile handling
---

diff --git a/.bin/offlineimap b/.bin/offlineimap
index 789fbe4..5bf7e52 100755
--- a/.bin/offlineimap
+++ b/.bin/offlineimap
@@ -1,6 +1,14 @@
 #!/bin/sh
 set -eu
 
+VAR=$HOME/.var/offlineimap
+LOCKFILE="$VAR/.cron.lock"
+trap "rm -f $LOCKFILE" 0 1 2 3 4 5 6 7 8 10 11 12 13 14 15
+if ! lockfile -0 -r0 -l 3600 "$LOCKFILE" 2>/dev/null; then
+  echo "E: offlineimap is already running." >&2
+  exit 1
+fi
+
 if ! test -t 0; then
   echo Renicing because we are not run interactively… >&2
   renice 20 -p $$ >/dev/null