X-Git-Url: https://git.madduck.net/etc/offlineimap.git/blobdiff_plain/32439eadb0bc1861dd450133bfcf9467a996de3d..84ad23ae0edb52bd785a38ef87398133e73c41e2:/.bin/offlineimap

diff --git a/.bin/offlineimap b/.bin/offlineimap
index 789fbe4..f55fee5 100755
--- a/.bin/offlineimap
+++ b/.bin/offlineimap
@@ -1,6 +1,16 @@
 #!/bin/sh
 set -eu
 
+[ "${1:-}" = -q ] && exec >/dev/null
+
+VAR=$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