WIP: Add initial restic support.

I've added a handler and example config file for restic. Since I'll be deploying this via Ansible, I'm not intending to write a helper, etc. But, I figured I'd share what basic progress I have made.

handlers/restic.in

@@ -30,19 +30,19 @@ getconf backup    "yes"
 getconf retention "no"
 getconf check     "no"
 
+
 ##############################################
 #                                            #
 # Take snapshots/backups of specified data.  #
 #                                            #
 ##############################################
 
-
 if [[ "$backup" == "yes" ]]; then
 
    setsection backup
 
-   getconf include "/etc /home /usr/local"
-   getconf exclude "/tmp /proc /dev /sys /net /misc /media /srv /selinux"
+   getconf include "/ /boot /usr /var /home"
+   getconf exclude "/home/*/.cache **/.Trash-* **/[Cc]ache/* *.vmdk /tmp/* **/build-area/* /var/cache/* /var/tmp/* /var/log/*"
    getconf tag
    getconf one_file_system "yes"
 
@@ -61,11 +61,18 @@ if [[ "$backup" == "yes" ]]; then
       debug "No exclusion patterns defined."
    else
       debug "Files matching the following patterns will be excluded from backups:"
+      set -f
       for e in $exclude
       do
-         exclude_options="$exclude_options --exclude $e"
+         exclude_options="$exclude_options --exclude=$e"
          debug "==> $e"
       done
+      if [ -d $repo ]; then
+         # Avoid infinite recursion if we try to backup a local repository.
+         exclude_options="$exclude_options --exclude=$repo"
+         debug "==> $repo"
+      fi
+      set +f
    fi
 
    if [ -z "$tag" ]; then
@@ -83,7 +90,6 @@ if [[ "$backup" == "yes" ]]; then
       other_options="$other_options --one-file-system"
    fi
 
-
    info "Taking backup snapshot."
    debug "Running: restic --repo $repo --password-file $password_file backup $other_options $tag_options $exclude_options $include_options"
    restic --repo $repo --password-file $password_file backup $other_options $tag_options $exclude_options $include_options