Reinstate per-machine SSH config on the preparation script

ROOT/usr/lib/chem-zfs-backup-server/zfs-rsync-prep.sh

@@ -7,7 +7,14 @@ TFILE=$(mktemp)
 trap "rm -f ${TFILE}" exit
 set -e
 set -xv
-ssh $HN /usr/local/lib/chem-rsync-backup-client/prepare >${TFILE}
+if [ -n "$SSHCONFIGFILE" ] ; then
+  SSH="ssh -F $SSHCONFIGFILE -o ConnectTimeout=10"
+  SCP="scp -F $SSHCONFIGFILE"
+else
+  SSH="ssh"
+  SCP="scp"
+fi
+$SSH $HN /usr/local/lib/chem-rsync-backup-client/prepare >${TFILE}
 if ! cmp ${TFILE} /etc/chem-zfs-backup-server/zfs-rsync.d/$HN/exclude ; then
  cp ${TFILE} /etc/chem-zfs-backup-server/zfs-rsync.d/$HN/exclude
 fi

debian/changelog

+chem-zfs-backup-server (1.0.3) foval jammy noble; urgency=low
+
+  * Reinstate ability to have a per-machine SSH config
+
+ -- Frank Lee <rl201@cam.ac.uk>  Fri, 24 May 2024 15:50:42 +0100
+
 chem-zfs-backup-server (1.0.2) focal jammy noble; urgency=medium
 
   * Add -q to psql calls