bspwm: Move monitor setup to its own file

It's complex enough to warrant it, I'd say

.config/bspwm/bspwmrc

@@ -29,20 +29,7 @@ unset dtfscript
 
 ## bspwm GENERAL CONFIGURATION
 printf "[INFO] Configuring bspwm\n"
-printf "[INFO] Setting up monitors\n"
-# Get the primary first, to ensure it's the first element
-monitors=($(xrandr -q | awk '/primary/{print $1}' && xrandr -q | grep ' connected' | grep -v 'primary' | awk '{print $1}'))
-desktops=8
-deskpermon=$(expr $desktops / ${#monitors[@]})
-printf "  [INFO] Putting $desktops desktops across ${#monitors[@]} monitors, $deskpermon each\n"
-for m in $(seq 0 $(expr ${#monitors[@]} - 1)); do
-	layout=$(seq --separator=" " $(expr 1 + $m) ${#monitors[@]} $(expr $desktops ))
-	printf "  [INFO] Giving monitor $m (${monitors[$m]}) layout \"$layout\"\n"
-	bspc monitor ${monitors[$m]} -d $layout
-done
-unset monitors
-unset desktops
-unset deskpermon
+$HOME/.config/bspwm/monitorset.sh
 
 bspc config border_width	4
 bspc config window_gap		6

.config/bspwm/monitorset.sh

@@ -0,0 +1,20 @@
+#! /bin/bash
+#
+# monitorset.sh
+# Copyright (C) 2018 salt <salt@dsk-cstm-0>
+#
+# Distributed under terms of the MIT license.
+#
+
+printf "[INFO] Setting up monitors\n"
+# Get the primary first, to ensure it's the first element
+monitors=($(xrandr -q | awk '/primary/{print $1}' && xrandr -q | grep ' connected' | grep -v 'primary' | awk '{print $1}'))
+desktops=8
+deskpermon=$(expr $desktops / ${#monitors[@]})
+printf "  [INFO] Putting $desktops desktops across ${#monitors[@]} monitors, $deskpermon each\n"
+for m in $(seq 0 $(expr ${#monitors[@]} - 1)); do
+	layout=$(seq --separator=" " $(expr 1 + $m) ${#monitors[@]} $(expr $desktops ))
+	printf "  [INFO] Giving monitor $m (${monitors[$m]}) layout \"$layout\"\n"
+	bspc monitor ${monitors[$m]} -d $layout
+done
+