replace lemonbar with polybar and support two monitors

.config/bspwm/bspwmrc

@@ -1,10 +1,23 @@
 #! /bin/sh
 
 sxhkd &
-~/.config/bspwm/panel &
-xdo lower $(xdo id -a panel)
 
+i=0
+monitors=$(bspc query -M --names)
+for monitor in $monitors; do
+    MONITOR="$monitor" polybar panel &
+    i=$((i + 1))
+done
+if [ $i -eq 1 ]; then
     bspc monitor -d 1 2 3 4 5 6 7 8 9 0
+else
+    monitor1=$(echo $monitors | cut -d ' ' -f 1)
+    monitor2=$(echo $monitors | cut -d ' ' -f 2)
+    bspc monitor "$monitor2" -d 1 2 3 4 5 6 7 8 9
+    bspc monitor "$monitor1" -d 0
+    bspc monitor "$monitor1" -s "$monitor2"
+    bspc monitor "$monitor2" -f
+fi
 
 bspc config border_width         2
 bspc config window_gap           12
@@ -18,4 +31,7 @@ bspc config single_monocle       true
 bspc config borderless_monocle   true
 bspc config gapless_monocle      true
 
+bspc config pointer_follows_focus   true
+bspc config pointer_follows_monitor true
+
 bspc rule -a Gimp desktop='^8' state=floating follow=on

.config/bspwm/panel

@@ -1,64 +0,0 @@
-#!/bin/sh
-
-BAR_BG='#1a343a'
-BAR_FG='#f2f6e1'
-ACTIVE_BG='#3585ce'
-URGENT_BG='#9b0640'
-FREE_FG='#808080'
-
-PANEL_FIFO=~/.panel-fifo
-
-[ -e "$PANEL_FIFO" ] && rm -f "$PANEL_FIFO"
-mkfifo -m 600 "$PANEL_FIFO"
-
-bspc subscribe > "$PANEL_FIFO" &
-
-xtitle -sf 'T%s\n' > "$PANEL_FIFO" &
-
-while true; do
-    echo "C$(date '+%H:%M')"
-    sleep 1
-done > "$PANEL_FIFO" &
-
-while read -r line ; do
-    case "$line" in
-	C*)
-	    clock="${line#?}"
-	    ;;
-	T*)
-	    title="${line#?}"
-	    ;;
-	W*)
-	    wm=
-	    IFS=':' set -- ${line#?}
-	    while [ $# -gt 0 ]; do
-		item="$1"
-		name="${item#?}"
-		case "$item" in
-		    [fFOoUu]*)
-			case "$item" in
-			    [OF]*)
-				BG="${ACTIVE_BG}"
-				FG="-"
-				;;
-			    o*)
-				BG="-"
-				FG="-"
-				;;
-			    f*)
-				BG="-"
-				FG="${FREE_FG}"
-				;;
-			    [uU]*)
-				BG="${URGENT_BG}"
-				FG="-"
-				;;
-			esac
-			wm="${wm}%{B${BG}}%{F${FG}}%{A:bspc desktop -f ${name}:} ${name} %{A}%{B-}%{F-}"
-		esac
-		shift
-	    done
-	    ;;
-    esac
-    printf "%s\n" "  ${wm}  ${title}%{r}${clock}  "
-done < "$PANEL_FIFO" | lemonbar -B "${BAR_BG}" -F "${BAR_FG}" -n panel -f Iosevka:pixelsize=30:antialias=true:autohint=true | sh

.config/polybar/config

@@ -0,0 +1,45 @@
+[colors]
+background = #1a343a
+foreground = #f2f6e1
+underline = #1a343a
+active = #3585ce
+urgent = #9b0640
+empty = #808080
+
+[bar/panel]
+monitor = ${env:MONITOR:}
+modules-left = bspwm xwindow
+modules-right = date
+font-0 = Iosevka:pixelsize=23:antialias=true:autohint=true
+height = 45
+background = ${colors.background}
+foreground = ${colors.foreground}
+padding-left = 2
+padding-right = 2
+module-margin-left = 1
+module-margin-right = 1
+line-size = 5
+
+[module/bspwm]
+type = internal/bspwm
+label-focused = %name%
+label-occupied = %name%
+label-urgent = %name%
+label-empty = %name%
+label-focused-padding = 1
+label-occupied-padding = 1
+label-urgent-padding = 1
+label-empty-padding = 1
+label-focused-background = ${colors.active}
+label-focused-underline = ${colors.underline}
+label-urgent-background = ${colors.urgent}
+label-empty-foreground = ${colors.empty}
+
+[module/xwindow]
+type = internal/xwindow
+label = %title%
+
+[module/date]
+type = internal/date
+time = %H:%M
+label = %time%