add rsync-backup script for incrementall backups

usr/bin/rsync-backup.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+# 
+#    copy-mointpoint.sh - copy recursivly a mountpoint using tar
+#    by Tobias Powalowski <tpowa@archlinux.org>
+# usage(exitvalue)
+# outputs a usage message and exits with value
+APPNAME=$(basename "${0}")
+usage()
+{
+    echo "RSYNC BACKUP:"
+    echo "- Copy backupdir to backupdestination using rsync."
+    echo ""
+    echo "- For system backup start with full mounted system and then invoke this script"
+    echo "  with system's root directory as backupdir."
+    echo " - excluded directories are /dev /tmp /proc /sys /run /mnt /media /lost+found"
+    echo " - --numeric-ids option is invoked to preserve users"
+    echo ""
+    echo "usage: ${APPNAME} <backupdir> <backupdestination>"
+    exit $1
+}
+
+##################################################
+
+if [ $# -ne 2 ]; then
+    usage 1
+fi
+
+BACKUPDESTINATION="${2}"
+BACKUPDIR="${1}"
+
+rsync -aAXv --numeric-ids --exclude={"/dev/*","/proc/*","/sys/*","/tmp/*","/run/*","/mnt/*","/media/*","/lost+found"} $BACKUPDIR $BACKUPDESTINATION
+

usr/lib/initcpio/install/arch_base

@@ -84,6 +84,8 @@ build ()
 
     ### add copy-mountpoint.sh
     add_file "/usr/bin/copy-mountpoint.sh"
+    ### add rsync-backup.sh
+    add_file "/usr/bin/rsync-backup.sh"
 
     ### add pam
     apps="mkhomedir_helper pam_tally pam_tally2 pam_timestamp_check unix_chkpwd unix_update"