add duply-do-backup.sh

scripts/duply-do-backup.sh

+#!/bin/bash
+# ################################################# #
+#                 duply-do-backup                   #
+#                                                   #
+# this script is meant to be called from cron and   #
+# first starts a backup and then a purge using      #
+# duply. it will not generate any output if all     #
+# works smoothly. if anything goes wrong, the       #
+# full log is displayed.                            #
+#                                felix@eckhofer.com #
+# ################################################# #
+
+LOGFILE="`mktemp`"
+PROFILE="$1"
+PROFILEPATH="/etc/duply/$PROFILE"
+export RSYNC_RSH='ssh -oBatchMode=yes -oLogLevel=Error' # avoid printing ssh banner
+
+function exit_error() {
+	[ -z "$@" ] || echo "$@"
+	rm -f "$LOGFILE"
+	exit 1
+}
+
+if [ -z "$PROFILE" ]; then
+	exit_error "usage: `basename $0` backup-profile"
+fi
+
+if [ ! -d "$PROFILEPATH" ]; then
+	exit_error "profile not found."
+fi
+
+echo "### Backing up ###" >> "$LOGFILE"
+
+if ! duply "$PROFILE" backup >> "$LOGFILE"
+then
+	cat "$LOGFILE"
+	exit_error
+fi
+
+echo "### Cleaning up ###" >> "$LOGFILE"
+
+if ! duply "$PROFILE" purge-full --force >> "$LOGFILE"
+then
+	cat "$LOGFILE"
+	exit_error
+fi
+
+rm "$LOGFILE"