reducing backup amounts parameterizing for later changes. should reduce cache sizes

backup.sh

@@ -181,23 +181,27 @@ else
             ;;
         "prune")
             if [[ $AC_POWER == 1 ]]; then
+                hourly=6
+                daily=7
+                monthly=12
+                yearly=5
                 echo """
                 Pruning backups at $DESTINATION ...
                 Keeping:
-                - 24 hourly backups
-                - 90 daily backups
-                - 12 monthly backups
-                - 5  yearly backups
+                - $hourly hourly backups
+                - $daily daily backups
+                - $monthly  monthly backups
+                - $yearly  yearly backups
                 """ | print_and_log
-                /usr/bin/restic \
+                RESTIC \
                     -r "$BACKUP_REPOSITORY" \
                     -p "$BACKUP_PASSWORD" \
                     --verbose \
                     --prune \
-                    --keep-hourly=24 \
-                    --keep-daily=90 \
-                    --keep-monthly=12 \
-                    --keep-yearly=5 \
+                    --keep-hourly=$hourly \
+                    --keep-daily=$daily \
+                    --keep-monthly=$monthly \
+                    --keep-yearly=$yearly \
                     forget | print_and_log
             else
                 echo "Not plugged in, canceling prune."