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jl2

Member

From: 47° 18' N 8° 34' E

Registered: 2022-06-01

Posts: 1,397

[SOLVED]sway bar + bash script with color?

Hi! I have a Bash script that has colored output.
I use this function for returning the same message but colored with ansii escape codes (I think that's the name):

## Availible Color shemes
deBlack='\033[0;30m'
Red='\033[0;31m'
Green='\033[0;32m'
BrownOrange='\033[0;33m'
Blue='\033[0;34m'
Purple='\033[0;35m'
Cyan='\033[0;36m'
LightGray='\033[0;37m'

DarkGray='\033[1;30m'
LightRed='\033[1;31m'
LightGreen='\033[1;32m'
Yellow='\033[1;33m'
LightBlue='\033[1;34m'
LightPurple='\033[1;35m'
LightCyan='\033[1;36m'
White='\033[1;37m'

NoColor='\033[0m'

#Red="#FFFF00"
#BrownOrange="#00FF00"

colorize () {
	echo "${1}${2}${NoColor}"
	#echo "<span foreground='$1'>$2</span>"
	#echo "$2"
}

I get these strange symbols and some of the color codes in the bar.
it works normal in the terminal.
can I modify that function so that it works or do I need to edit the rest of the file?
here's the rest:

#! /bin/bash

## Availible Color shemes
deBlack='\033[0;30m'
Red='\033[0;31m'
Green='\033[0;32m'
BrownOrange='\033[0;33m'
Blue='\033[0;34m'
Purple='\033[0;35m'
Cyan='\033[0;36m'
LightGray='\033[0;37m'

DarkGray='\033[1;30m'
LightRed='\033[1;31m'
LightGreen='\033[1;32m'
Yellow='\033[1;33m'
LightBlue='\033[1;34m'
LightPurple='\033[1;35m'
LightCyan='\033[1;36m'
White='\033[1;37m'

NoColor='\033[0m'

#Red="#FFFF00"
#BrownOrange="#00FF00"

colorize () {
	echo "${1}${2}${NoColor}"
	#echo "<span foreground='$1'>$2</span>"
	#echo "$2"
}

mem () {
	mem="$(free -h)"
	swap="$(zramctl)"
	mused="$(echo $mem | awk 'NR==1{print $9}')"
	mtotal="$(echo $mem | awk 'NR==1{print $8}')"
	sused="$(echo $swap | awk 'NR==1{print $12}')"
	sunc="$(echo $swap | awk 'NR==1{print $14}')"
	stotal="$(echo $swap | awk 'NR==1{print $11}')"
	mused="${mused::-1}"
	mtotal="${mtotal::-1}"
	if [ ${sunc##*[0-9]} = "G" ] && [ ${sunc::-1} -ge 8 ]; then
		mused="$(colorize $Red $mused)"
		sused="$(colorize $Red $sused)"
	fi
	out="${out} Mem: ${mused}/${mtotal} | Swap: ${sused}/${stotal} |"
}

timelef () {
	a="$(cat ~/.time/time)"
	if systemctl --user --quiet is-active timectl.timer; then
		b=1
	else
		b="$(colorize $BrownOrange 0)"
	fi
	if [ $a -le 3 ]; then
		a="$(colorize $Red $a)"
	elif [ $a -le 8 ]; then
		a="$(colorize $BrownOrange $a)"
	fi
	out="${out} $a ($b) |"
}

notify-get () {
	if ! h="$(cat /tmp/blink)"; then
		h=0
		echo $h >/tmp/blink
	fi
	if [ $h = 0 ]; then
		out="$(notify -r --nonewlines)"
		if [ $(echo $out | wc -L ) -gt 0 ]; then
			out="$(colorize $Cyan "$out") |"
		fi
	elif [ $h = 1 ]; then
		out=""
	fi
	if [ $h = 0 ]; then
		echo 1 >/tmp/blink
	else
		echo 0 >/tmp/blink
	fi
}

cpu () {
	temp=$(( $(cat /sys/class/thermal/thermal_zone0/temp)/1000 ))
	if [ $temp -ge 80 ]; then
		temp="$(colorize $Red $temp)"
	elif [ $temp -ge 55 ]; then
		temp="$(colorize $BrownOrange $temp)"
	fi
	
	freq="$(cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_cur_freq)"
	n=0
	for i in $freq
	do 
		n=$n+$i
	done
	n=$(( ($n)/160000))
	if [ $n -lt 100 ]; then
		n="0${n}"
	fi
	g="$n"
	n="${n::1}.${n:1}"
	if [ $g -ge 270 ]; then
		n="$(colorize $BrownOrange $n)"
	fi
    out="$out ${n} Ghz [${temp}°C] |"
}

battery () {
	bat="$(cat /sys/class/power_supply/BAT0/capacity)"
	if [ $bat -le 8 ]; then
		bat="$(colorize $Red $bat)"
	elif [ $bat -le 20 ]; then
		bat="$(colorize $BrownOrange $bat)"
	fi
	out="$out Bat: ${bat}% |"
}

wlan () {
	name=$(cat /tmp/wifi | awk 'NR==2{print $3}')
	strength=$(cat /tmp/wifi | awk 'NR==2{print $8}')
	internet=$(cat /tmp/is_online)
	strength=${strength:-"none"}
	if ! [ $strength = "none" ]; then
	if [ $strength -le 20 ]; then
		strength="$(colorize $Red $strength)"
	elif [ $strength -le 40 ]; then
		strength="$(colorize $BrownOrange $strength)"
	elif [ $strength -ge 80 ]; then
		strength="$(colorize $Green $strength)"
	fi
	fi
	out="$out ${name} ${strength} ($internet) |"
}
notify-get
wlan
cpu
mem
battery

timelef
out="$out $(date "+%I:%M")´´"
echo -e "$out"

#swaymsg -t command "swaymsg 'message \"$out\"'"

Last edited by jl2 (2023-06-05 19:18:21)

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seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 76,696

Re: [SOLVED]sway bar + bash script with color?

Does the script behave correctly if you just "echo $2"?
If so you can probably discriminate the behavior based on the result of "tty", "$TERM" or the $PPID (eg. realpath /proc/$PPID/exe)

Don't test that inside colorize, redefine the function based on the result.

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jl2

Member

From: 47° 18' N 8° 34' E

Registered: 2022-06-01

Posts: 1,397

Re: [SOLVED]sway bar + bash script with color?

yes, but it doesn't have color. the color also works normally in the terminal.
how do you mean discriminate?

Last edited by jl2 (2023-06-05 07:39:06)

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seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 76,696

Re: [SOLVED]sway bar + bash script with color?

https://man.archlinux.org/man/extra/sway/sway-bar.5.en
https://docs.gtk.org/Pango/pango_markup.html

Enable pango_markup and use spans w/ the color attribute.

Edit: you check tty or term or ppid and redifine the color function based on that.
Discrimination is often used in a negative context but just means "treat differently"

Last edited by seth (2023-06-05 07:57:17)

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jl2

Member

From: 47° 18' N 8° 34' E

Registered: 2022-06-01

Posts: 1,397

Re: [SOLVED]sway bar + bash script with color?

thanks for the first link.
I had already tried that. It was commented out in the OP.
Now it doesn't work in the terminal but I don't care. that's a separate script.
Thanks.

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seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 76,696

Re: [SOLVED]sway bar + bash script with color?

Red='\033[0;31m'
BrownOrange='\033[0;33m'
…
NoColor='\033[0m'

colorize () {
	echo "${1}${2}${NoColor}"
}

if is_swaybar; then
    Red="#FFFF00"
    BrownOrange="#00FF00"
    …
    colorize () {
        echo "<span color='$1'>$2</span>"
    }
fi

is_swaybar needs to be determined, I don't use sway but would inspect the tty, $PPID or $TERM to see whether this might be an interactive shell or something else.

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jl2

Member

From: 47° 18' N 8° 34' E

Registered: 2022-06-01

Posts: 1,397

Re: [SOLVED]sway bar + bash script with color?

PPID=8150; changes with each reload
TERM=dumb

janluca     8150  1.6  0.1 246336 15672 tty1     S+   20:49   0:00 swaybar -b bar-0

I'm gonna go with $TERM.
In case you need a sway status bar:

#! /bin/dash

## Availible Color shemes
## doesn't work with dash
#if [ "$TERM" = "dumb" ]; then
Red=#FF0000
Green=#00FF00
BrownOrange=#FFDD00
Cyan=#00FFDD
 
#else
#Black='\033[0;30m'
#Red='\033[0;31m'
#Green='\033[0;32m'
#BrownOrange='\033[0;33m'
#Blue='\033[0;34m'
#Purple='\033[0;35m'
#Cyan='\033[0;36m'
#LightGray='\033[0;37m'

#DarkGray='\033[1;30m'
#LightRed='\033[1;31m'
#LightGreen='\033[1;32m'
#Yellow='\033[1;33m'
#LightBlue='\033[1;34m'
#LightPurple='\033[1;35m'
#LightCyan='\033[1;36m'
#White='\033[1;37m'

#NoColor='\033[0m'
#fi


colorize () {
	#if [ "$TERM" = "dumb" ]; then
		echo "<span foreground='$1'>$2</span>"
	#else
		#echo "${1}${2}${NoColor}"
	#d=#FF0000                                                                      
}

mem () {
	mem="$(free -h)"
	swap="$(zramctl)"
	mused="$(echo $mem | awk 'NR==1{print $9}')"
	mtotal="$(echo $mem | awk 'NR==1{print $8}')"
	sused="$(echo $swap | awk 'NR==1{print $12}')"
	sunc="$(echo $swap | awk 'NR==1{print $14}')"
	stotal="$(echo $swap | awk 'NR==1{print $11}')"
	mused="${mused%?}"
	mtotal="${mtotal%?}"
	if [ ${sunc##*[0-9]} = "G" ] && [ ${sunc%?} -ge 8 ]; then
		mused="$(colorize $Red $mused)"
		sused="$(colorize $Red $sused)"
	fi
	out="${out} Mem: ${mused}/${mtotal} | Swap: ${sused}/${stotal} |"
}

timelef () {
	## see how much screen time I have left...
	a="$(cat ~/.time/time)"
	if systemctl --user --quiet is-active timectl.timer; then
		b=1
	else
		b="$(colorize $BrownOrange 0)"
	fi
	if [ $a -le 3 ]; then
		a="$(colorize $Red $a)"
	elif [ $a -le 8 ]; then
		a="$(colorize $BrownOrange $a)"
	fi
	out="${out} $a ($b) |"
}

notifyget () {
	## if you guess how I wrote the other script needed to maintain this function :)
	if ! h="$(cat /tmp/blink)"; then
		h=0
		echo $h >/tmp/blink
	fi
	if [ $h = 0 ]; then
		out="$(notify -r --nonewlines)"
		if [ $(echo $out | wc -L ) -gt 0 ]; then
			out="$(colorize $Cyan "$out") |"
		fi
	elif [ $h = 1 ]; then
		out=""
	fi
	if [ $h = 0 ]; then
		echo 1 >/tmp/blink
	else
		echo 0 >/tmp/blink
	fi
}

cpu () {
	temp=$(( $(cat /sys/class/thermal/thermal_zone0/temp)/1000 ))
	if [ $temp -ge 85 ]; then
		temp="$(colorize $Red $temp)"
	elif [ $temp -ge 65 ]; then
		temp="$(colorize $BrownOrange $temp)"
	fi
	
	freq="$(cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_cur_freq)"
	n=0
	for i in $freq
	do 
		n=$n+$i
	done
	n=$(( ($n)/160000))
	if [ $n -lt 100 ]; then
		n="0${n}"
	fi
	g="$n"
	n="${n%??}.${n#?}"
	if [ $g -ge 320 ]; then
		n="$(colorize $BrownOrange $n)"
	fi
    out="$out Cpu: ${n} Ghz [${temp}°C] |"
}

battery () {
	bat="$(cat /sys/class/power_supply/BAT0/capacity)"
	if [ $bat -le 8 ]; then
		bat="$(colorize $Red $bat)"
	elif [ $bat -le 20 ]; then
		bat="$(colorize $BrownOrange $bat)"
	fi
	out="$out Bat: ${bat}% |"
}

wlan () {
	## heavy editing of this section needed if you don't use iwd
	iwctl station wlan0 show >/tmp/wifi
	if [ "$(cat /tmp/wifi)" = "No station on device: 'wlan0'" ]; then
		if [ $(rfkill list wifi | sed -n 2p | awk '{print $3}') = "yes" ]; then
			strength="airplane"
		fi
	else
		strength=$(cat /tmp/wifi | grep " RSSI" | awk '{print $2}')
		if [ "$strength" = "" ]; then
			strength=0
		else
			strength=$(( $strength + 100))
		fi
		name="$(cat /tmp/wifi | grep "Connected network" | awk '{print $3}')"
		if [ $strength -le 20 ]; then
			strength="$(colorize $Red $strength)"
		elif [ $strength -le 40 ]; then
			strength="$(colorize $BrownOrange $strength)"
		elif [ $strength -ge 70 ]; then
			strength="$(colorize $Green $strength)"
		fi
	fi
	## check if google.ch is reachable
	internet=$(cat /tmp/is_online)
	if [ $internet = 0 ] && ! [ $strength = "airplane" ]; then
		internet=$(colorize $Red 0)
	fi
	out="${out}Wlan: ${name} ${strength} ($internet) |"
}
vol () {
	## I use wireplumber - edit accordingly
	d=$(wpctl get-volume @DEFAULT_AUDIO_SINK@)
	if [ "$(echo $d | awk '{print $3}')" = "[MUTED]" ]; then
		d="muted"
	else
		d=$(echo $d | awk '{print $2}')
		b=$d
		d=${d#??}
		if [ ${b%???} -gt 0 ]; then
			d=${b%???}${d}
		fi
	fi
	out="$out Vol: ${d}% | "
}

notifyget
wlan
cpu
mem
vol
battery
timelef
out="$out $(date "+%I:%M") ´"
echo "$out"

It runs on dash, but feel free to edit it for bash
note dash doesn't seem to support $TERM, so I commented it out.
You made my desktop a little bit more colorful. thanks!

Last edited by jl2 (2023-06-05 19:17:57)

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Why I run Arch? To "BTW I run Arch" the guy one grade younger.
And to let my siblings and cousins laugh at Arsch Linux...

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