added configure swap file

etc/nextcloudpi-config.d/nc-swapfile.sh

@@ -0,0 +1,52 @@
+#!/bin/bash
+
+# Data dir configuration script for NextCloudPi
+# Tested with 2017-03-02-raspbian-jessie-lite.img
+#
+# Copyleft 2017 by Ignacio Nunez Hernanz <nacho _a_t_ ownyourbits _d_o_t_ com>
+# GPL licensed (see end of file) * Use at your own risk!
+#
+# Usage:
+# 
+#   ./installer.sh nc-swapfile.sh <IP> (<img>)
+#
+# See installer.sh instructions for details
+#
+# More at https://ownyourbits.com/
+#
+
+SWAPFILE_=/var/swap
+SWAPSIZE_=1024
+DESCRIPTION="Move and resize your swapfile. Recommended to move to a permanent USB drive"
+
+configure()
+{
+  [[ $( stat -fc%d / ) == $( stat -fc%d $SWAPFILE_ ) ]] && \
+    echo -e "INFO: moving swapfile to another place in the same SD card\nIf you want to use an external mount, make sure it is properly set up"
+
+  sed -i "s|#\?CONF_SWAPFILE=.*|CONF_SWAPFILE=$SWAPFILE_|" /etc/dphys-swapfile
+  sed -i "s|#\?CONF_SWAPSIZE=.*|CONF_SWAPSIZE=$SWAPSIZE_|" /etc/dphys-swapfile
+  grep -q vm.swappiness /etc/sysctl.conf || echo "vm.swappiness = 10" >> /etc/sysctl.conf && sysctl --load
+  service dphys-swapfile restart
+}
+
+install() { :; }
+cleanup() { :; }
+
+# License
+#
+# This script is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This script is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this script; if not, write to the
+# Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+# Boston, MA  02111-1307  USA
+