fix race condition

btrbk was unmounting, then rootsshsync was killing off files in
/root/.ssh when thing were unmounted.

diff --git a/rootsshsync b/rootsshsync
index c4cebbf5660b56b7c305d184a46dbc826ffb1377..1a39d463494954d3f9f890a88a058345a86905d6 100755 (executable)
--- a/rootsshsync
+++ b/rootsshsync
@@ -33,6 +33,10 @@ if [[ $SUDO_USER ]]; then
 fi
 
 user_ssh_dir=$(eval echo ~$user)/.ssh
+if [[ ! -s $user_ssh_dir/config ]]; then
+  echo missing $user_ssh_dir/config. bad sign. bailing >&2
+  exit 1
+fi
 
 # remove broken links, or else rsync has error about them.
 find $user_ssh_dir -xtype l -exec rm '{}' \;