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Mostly finished features

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dtb 2021-07-11 16:18:11 -04:00
parent 465c241cbb
commit 9757056ea7
1 changed files with 79 additions and 30 deletions
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109
dotfiles-old/bin/volume
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@ -1,18 +1,28 @@
#!/bin/sh #!/bin/sh
# Has some undocumented features but they're functional (as far as I know)
# and system-independent. just shortcuts for me really.
argv0="$0" argv0="$0"
! which stris >/dev/null 2>/dev/null \
&& printf "%b: Missing stris.\n" \
&& exit 1 \
|| true
VOLUME_TMP_FILE="$HOME/.volume-previous"
usage() { usage() {
printf "\ printf "\
Usage: %b {absolute,help,relative,status} [ARGUMENT...]\n" "$argv0" Usage: %b [function] (argument)\n" "$argv0"
printf "\ printf "\
Examples: Functions:
%b absolute 0 # mute sound output absolute - change sound output to absolute unit
%b help # print this help text help - print this help output
%b relative 4 # increase the volume by 4 units mute - toggle mute/unmute
%b relative -4 # decrease the volume by 4 units relative - change sound output relative to current status
%b status # print current volume status - print current sound output in system unit
" "$argv0" "$argv0" "$argv0" "$argv0" "$argv0" "
printf "\ printf "\
The options are matched with [char]*. So \"%b help\" The options are matched with [char]*. So \"%b help\"
works the same as \"%b h\". works the same as \"%b h\".
@ -21,38 +31,77 @@ works the same as \"%b h\".
exit 1 exit 1
} }
[ -n "$1" ] || usage [ -n "$1" ] \
&& argv1="$1" \
|| argv1=s
case "$1" in case "$argv1" in
(+) # shortcut
[ -n "$2" ] && [ -z "$3" ] && stris uint "$2" \
&& "$argv0" r "$2" \
|| usage
;;
(-) # shortcut
[ -n "$2" ] && [ -z "$3" ] && stris uint "$2" \
&& "$argv0" r -"$2" \
|| usage
;;
(a*) (a*)
[ -n "$2" ] && [ -z "$3" ] && stris int "$2" || usage
case "$(uname)" in case "$(uname)" in
(NetBSD) (NetBSD)
audioctl -w play.gain=$1 >/dev/null # 9.2 STABLE 2021-07
audioctl -w play.gain=$2 >/dev/null
;; ;;
(*) unknown_system (*) unknown_system
esac esac
;; exit 0 ;;
(h*) usage ;; (h*) usage ;;
(r*) (m*) # system independent
case "$(uname)" in [ -z "$2" ] || usage
(NetBSD) # restore previous volume if there is one
# works. 9.2 STABLE 2021-07 if [ -e "$VOLUME_TMP_FILE" ]; then
audioctl -w play.gain=$(( \ "$argv0" a "$(cat "$VOLUME_TMP_FILE")" \
$( \ && rm "$VOLUME_TMP_FILE" \
audioctl -a \ && printf "Unmuted.\n" \
| grep "play\.gain" \ && exit 0 \
| cut -d '=' -f 2 \ || printf "Error restoring previous volume.\n" \
) + $2)) >/dev/null >/dev/stderr \
;; && exit 1
(*) unknown_system fi
esac
;; # otherwise, make new file with previous volume
# dd used rather than shell redirect so it's easy to determine
# whether or not the file write worked
if ! printf "%b" "$("$argv0" s)" | dd of="$VOLUME_TMP_FILE" \
2>/dev/null
then
printf "Error writing to file.\n" >/dev/stderr
false
fi
# and then of course mute
"$argv0" a 0
printf "Muted.\n"
exit 0 ;;
(r*) # system independent
[ -n "$2" ] && [ -z "$3" ] && stris int "$2" || usage
if ! newval=$(add $("$argv0" s) $2) || ! stris int "$newval"; then
printf "%b: Error finding new value for volume.\n"
exit 1
fi
"$argv0" a $newval
exit $? ;;
(s*) (s*)
[ -z "$2" ] || usage
case "$(uname)" in case "$(uname)" in
(NetBSD) (NetBSD)
audioctl -a | grep "play\.gain" | cut -d '=' -f 2 audioctl -a | grep "play\.gain" | cut -d '=' -f 2
;; ;;
(*) unknown_system (*) unknown_system
esac esac
;; exit 0 ;;
(*) usage
esac esac