dtfscripts: Major refactor with more modular service startup

.config/dtfscripts/services/polybar.dtf

@@ -0,0 +1,35 @@
+#! /usr/bin/env bash
+#
+# Simple wmstartup service
+# Copyright (C) 2018 salt <salt@lap-th-e560-0>
+#
+# Distributed under terms of the MIT license.
+#
+
+source $DTF_SERVICES_DIR/common.bash
+service_name="Polybar"
+service_process="polybar"
+
+function start() {
+	if ! prestart; then
+		svc_log "Failed pre-start checks"
+		return 1
+	fi
+	export PB_MONITOR=$(xrandr -q | awk '/primary/{print $1}')
+	svc_log "Starting primary on monitor $PB_MONITOR"
+	polybar -r primary& > /dev/null 2>&1
+	polybar -r primary-2& > /dev/null 2>&1
+
+	export secondary_monitors=$(xrandr -q | grep ' connected' | grep -v 'primary' | awk '{print $1}')
+	if [[ "$secondary_monitors" == "" ]]; then
+		return 0
+	fi
+	for monitor in $secondary monitors; do
+		svc_log "Starting secondary on monitor $monitor"
+		PB_MONITOR=$monitor
+		polybar -r secondary& > /dev/null 2>&1
+		polybar -r secondary-2& > /dev/null 2>&1
+	done
+	return 0
+}
+