Secondary monitors for Polybar, yeah!

polybar/config.ini

@@ -18,13 +18,11 @@ foreground-alt      = #777
 foreground-caution  = #bd2c40
 foreground-alert    = #ff4e4e
 
-[bar/midbard]
+[bardefaults]
 ;enable-ipc = true
 ; I don't use this at the moment
 enable-ipc = false
 
-monitor = ${env:MONITOR:eDP-1}
-width = 100%
 height = 27
 fixed-center = true
 
@@ -53,6 +51,15 @@ font-6  = "Material Wifi Signal strength:pixelsize=14;2"
 ; MPD song position
 font-7 = "Fira Mono:size=7;-1"
 
+cursor-click = pointer
+cursor-scroll = ns-resize
+
+[bar/midbard]
+inherit = bardefaults
+
+monitor = ${env:MONITOR:eDP-1}
+width = 100%
+
 modules-left = i3 volume mpd-online-1
 modules-center = date
 modules-right = battery cpu memory temperature eth wlan
@@ -60,8 +67,14 @@ modules-right = battery cpu memory temperature eth wlan
 tray-position = right
 tray-padding = 2
 
-cursor-click = pointer
+[bar/secondary]
-cursor-scroll = ns-resize
+inherit = bardefaults
+
+modules-left = i3
+monitor = ${env:MONITOR:eDP-1}
+width = 100%
+
+
 
 [module/xwindow]
 type = internal/xwindow
@@ -116,7 +129,7 @@ index-sort = true
 wrapping-scroll = false
 
 ; Only show workspaces on the same output as the bar
-;pin-workspaces = true
+pin-workspaces = true
 
 label-mode-padding = 2
 label-mode-foreground = #000
@@ -124,22 +137,22 @@ label-mode-background = #ffb52a
 
 ; focused = Active workspace on focused monitor
 label-focused = "   %index%   "
-label-focused-background = ${module/bspwm.label-focused-background}
+label-focused-background = ${colors.background-selected}
-label-focused-padding = ${module/bspwm.label-focused-padding}
+label-focused-padding = 2
 
 ; unfocused = Inactive workspace on any monitor
 label-unfocused = %index%
-label-unfocused-padding = ${module/bspwm.label-occupied-padding}
+label-unfocused-padding = 2
 
 ; visible = Active workspace on unfocused monitor
-label-visible = %index%
+label-visible = ${self.label-focused}
-label-visible-background = ${self.label-focused-background}
+label-visible-background = ${colors.background-alt}
 label-visible-padding = ${self.label-focused-padding}
 
 ; urgent = Workspace with urgency hint set
 label-urgent = %index%
-label-urgent-background = ${module/bspwm.label-urgent-background}
+label-urgent-background = ${colors.background-alert}
-label-urgent-padding = ${module/bspwm.label-urgent-padding}
+label-urgent-padding = 2
 
 [mpd-shared]
 type = internal/mpd

polybar/launch.sh

@@ -2,23 +2,65 @@
 
 echo "Launching polybar"
 
+LOGDIR="$HOME/.log/my-i3-desktop/polybar-$(date +%Y%m%d_%H%M%S.%N)"
+mkdir -p "$LOGDIR"
+INIT_LOG="$LOGDIR/launch.log"
+exec 1>&- 2>&-
+exec 1>"$INIT_LOG" 2>&1
+
+
+
+detect_primary_monitor() {
+	primary="$(xrandr | grep -F " connected primary" | head -n1 | cut -d ' ' -f1)"
+	[[ -n $primary ]] || primary="$(echo "$monitors" | grep " connected" | head -n1 | cut -d ' ' -f1)"
+	echo "$primary"
+}
+
+echo -e "\nDetermining primary monitor..."
+primary=$(detect_primary_monitor)
+[[ -n $primary ]] || { echo "WARNING: no primary monitor detected!"; notify-send -a "Polybar launcher" "No primary monitor detected" "Couldn't detect primary monitor. Check $INIT_LOG."; }
+echo "Primary monitor: $primary"
+
+echo -e "\nDetermining secondary monitors..."
+secondary="$(xrandr --listmonitors | sed -n "1d;/$primary\$/d;"'s/^.* \([^ ][^ ]*\)$/\1/p')"
+echo "Secondary monitors:"; echo "$secondary" | sed -r 's/^/* /'
+
+
+
 # Terminate already running bar instances
+echo -e "\nTerminating already running bars..."
+echo "Running Polybar processes:"
+pgrep -u $UID -x polybar | sed -r 's/^/* /'
+
 killall -q polybar
 
 # Wait until the processes have been shut down
 while pgrep -u $UID -x polybar >/dev/null; do sleep 1; done
 
+echo "Terminated."
+
 (
+	echo -e "\nReading secrets..."
 	set -o allexport # Make all assignments exports
 	source "$(dirname "$0")"/secrets.sh
 	set +o allexport
 
-	# Get the primary monitor, or else just any active monitor
+	echo
-	MONITOR="$(xrandr | grep " connected primary" | head -n1 | cut -d ' ' -f1)"
-	[[ -n $MONITOR ]] || MONITOR="$(xrandr | grep " connected" | head -n1 | cut -d ' ' -f1)"
-	[[ -n $MONITOR ]] && export MONITOR
 
-	polybar --config="$HOME/.config/polybar/config.ini" midbard &>$HOME/.log/my-i3-desktop/polybar-midbard.log
+	start_polybar() {
+		echo "Starting $1 on $2"
+		MONITOR="$2" \
+			polybar --config="$HOME/.config/polybar/config.ini" "$1" \
+			&>"$LOGDIR/$1-$2.log" & disown
+	}
+
+	start_polybar midbard "$primary"
+
+	while read -r monitor; do
+		start_polybar secondary "$monitor"
+	done <<< "$secondary"
 )
 
+exec 1>&- 2>&-
+
 echo "Polybar launched."