From: Cian Bagshaw <cian@cianb.xyz>
Date: Wed, 7 Jun 2023 18:35:08 +0000 (+0100)
Subject: Re-Wrote gvol
X-Git-Url: https://tests.cianb.xyz/?a=commitdiff_plain;h=4aa91ec9a8031bd77e238b7b55c98a4a57aaa8a4;p=dotFiles

Re-Wrote gvol

It now parses amixer output with a single highly efficient sed command. Also,
removed all bashisms.
---

diff --git a/.local/bin/gvol b/.local/bin/gvol
index 29f43ba..edbf5ba 100755
--- a/.local/bin/gvol
+++ b/.local/bin/gvol
@@ -2,10 +2,7 @@
 # gvol - get volume of alsa control using amixer, with $1 as the control name,
 # defaulting to Master if blank
 
-[ -z "$1" ] && CONTROL=Master || CONTROL="$1"
-
-VOL=$(amixer get $CONTROL | grep -m1 "%")
-
-[ $(grep -Fo "[on]" <<< "$VOL") ] \
-	&& grep -o "[0-9]*%" <<< "$VOL" \
-	|| echo MUTE
+amixer get \
+	$( [ -z "$1" ] && echo "Master" || echo "$1") \
+	| sed	-e '/\[on\]/	{ s/\].*//; s/.*\[//;	p; q }' \
+			-e '/\[off\]/	{ s/^.*$/MUTE/;			p; q }' -n