rename the scripts directory to setup

setup/functions.sh

@@ -0,0 +1,28 @@
+function apt_install {
+	# Report any packages already installed.
+	PACKAGES=$@
+	TO_INSTALL=""
+	for pkg in $PACKAGES; do
+		if dpkg -s $pkg 2>/dev/null | grep "^Status: install ok installed" > /dev/null; then
+			echo $pkg is already installed \(`dpkg -s $pkg | grep ^Version: | sed -e "s/.*: //"`\)
+		else
+			TO_INSTALL="$TO_INSTALL""$pkg "
+		fi
+	done
+
+	# List the packages about to be installed.
+	if [[ ! -z "$TO_INSTALL" ]]; then
+		echo installing $TO_INSTALL...
+	fi
+
+	# 'DEBIAN_FRONTEND=noninteractive' is to prevent dbconfig-common from asking you questions.
+	DEBIAN_FRONTEND=noninteractive apt-get -qq -y install $PACKAGES > /dev/null;
+}
+
+function ufw_allow {
+	if [ -z "$DISABLE_FIREWALL" ]; then
+		# ufw has completely unhelpful output
+		ufw allow $1 > /dev/null;
+	fi
+}
+