From ac545c3be053197fff6b65bc698036567e13bd1f Mon Sep 17 00:00:00 2001
From: Elias Norrby <elias.norrby@gmail.com>
Date: Wed, 7 Jul 2021 00:52:28 +0200
Subject: [PATCH] feat(polybar): add secondary-stats bar

With CPU and RAM usage bars.
---
 panel/polybar/config    | 43 ++++++++++++++++++++++++++++++++++++++++-
 panel/polybar/launch.sh | 40 +++++++++++++++++++++++++++++++-------
 2 files changed, 75 insertions(+), 8 deletions(-)

diff --git a/panel/polybar/config b/panel/polybar/config
index a2f55684..e0327086 100644
--- a/panel/polybar/config
+++ b/panel/polybar/config
@@ -80,6 +80,11 @@ modules-left = bspwm
 modules-center =
 modules-right =
 
+[bar/secondary-stats]
+inherit = bar/secondary
+
+modules-center = memory-bar cpu-bar
+
 [module/vpn]
 type = custom/script
 exec = if pgrep -x openfortivpn >/dev/null; then echo " "; else echo " "; fi
@@ -145,12 +150,48 @@ format-prefix = " "
 format-prefix-foreground = ${colors.foreground-alt}
 label = %percentage:2%%
 
+[module/cpu-bar]
+type = internal/cpu
+interval = 2
+format = <bar-load> <label>
+format-prefix = CPU
+format-prefix-foreground = ${colors.foreground-alt}
+label = %percentage:2%%
+
+bar-load-indicator =
+bar-load-width = 50
+bar-load-foreground-0 = #55aa55
+bar-load-foreground-1 = #557755
+bar-load-foreground-2 = #f5a70a
+bar-load-foreground-3 = #ff5555
+bar-load-fill = ▐
+bar-load-empty = ▐
+bar-load-empty-foreground = #444444
+
 [module/memory]
 type = internal/memory
 interval = 2
 format-prefix = " "
 format-prefix-foreground = ${colors.foreground-alt}
-label = %percentage_used%%
+label = %percentage_used:2%%
+
+[module/memory-bar]
+type = internal/memory
+interval = 2
+format-prefix = RAM
+format = <bar-used> <label>
+format-prefix-foreground = ${colors.foreground-alt}
+label = %percentage_used:2%%
+
+bar-used-indicator =
+bar-used-width = 50
+bar-used-foreground-0 = #55aa55
+bar-used-foreground-1 = #557755
+bar-used-foreground-2 = #f5a70a
+bar-used-foreground-3 = #ff5555
+bar-used-fill = ▐
+bar-used-empty = ▐
+bar-used-empty-foreground = #444444
 
 [module/eth]
 type = internal/network
diff --git a/panel/polybar/launch.sh b/panel/polybar/launch.sh
index bc7c2190..d15e1ba5 100755
--- a/panel/polybar/launch.sh
+++ b/panel/polybar/launch.sh
@@ -1,13 +1,39 @@
-#!/usr/bin/env bash
+#!/bin/sh
 
 killall -q polybar
 
-#echo "---" | tee -a /tmp/polybar.log
-#polybar mybar >> /tmp/polybar.log 2>&1 & disown
+list_monitors() {
+  polybar --list-monitors
+}
 
-pm=$(polybar --list-monitors | grep '(primary)' | cut -d":" -f1)
-MONITOR=$pm polybar --reload main &
+monitor_name() {
+  cut -d ":" -f 1
+}
 
-for m in $(polybar --list-monitors | grep -v '(primary)' | cut -d":" -f1); do
-  MONITOR=$m polybar --reload secondary &
+exclude_primary() {
+  grep -v '(primary)'
+}
+
+exclude_rightmost() {
+  if [ -n "$rightmost_monitor" ]; then
+    grep -v "$rightmost_monitor"
+  else
+    cat
+  fi
+}
+
+launch_bar_on_monitor() {
+  MONITOR=$2 polybar --reload "$1" &
+}
+
+primary_monitor=$(list_monitors | grep '(primary)' | monitor_name)
+launch_bar_on_monitor main "$primary_monitor"
+
+rightmost_monitor=$(list_monitors | exclude_primary | tail -1 | monitor_name)
+if [ -n "$rightmost_monitor" ]; then
+  launch_bar_on_monitor secondary-stats "$rightmost_monitor"
+fi
+
+for monitor in $(list_monitors | exclude_primary | exclude_rightmost | monitor_name); do
+  launch_bar_on_monitor secondary "$monitor"
 done