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#!/bin/sh |
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alias jq='cat monitors.json | jq -r' |
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# Resolves the name of a monitor from an alias or name |
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function resolve_monitor { |
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name="$1" |
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# check monitors object |
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exists="$(jq '.monitors | has("'$name'")')" |
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if [[ "$exists" == "true" ]]; then |
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echo "$name" |
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return 0 |
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fi |
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# check alias object |
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exists=`jq '.alias | has("'$1'")'` |
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if [[ "$exists" == "true" ]]; then |
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jq '.alias["'$1'"]' |
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return 0 |
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fi |
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return 1 |
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} |
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# Prints true or false depending on whether a monitor exists |
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function monitor_exists { |
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name="$(resolve_monitor "$1")" |
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if [[ "$name" == "" ]]; then |
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echo "false" |
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return 1 |
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fi |
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jq '.monitors | has("'$name'")' |
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} |
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function list_monitors { |
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monitors="$(jq -r '.monitors')" |
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echo "Available monitors:" |
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while IFS= read -r monitor; do |
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size=$(jq -r '.monitors.["'$monitor'"].size') |
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aliases=$(jq -r --arg monitor "$monitor" '.alias | to_entries | map(select(.value == $monitor) | .key) | join(", ")') |
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echo " $monitor:" |
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echo " Alias: $aliases" |
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echo " Size: $size" |
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done <<< "$(jq -r '.monitors | keys_unsorted[]')" |
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} |
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function kill_bars { |
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bars="$1" |
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[[ "$bars" == "" ]] && return |
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for bar in $bars; do |
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pids="$(ps aux | grep 'polybar '"$bar"'' | awk '{ print $2 }')" |
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if [[ "$pids" != "" ]]; then |
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kill $pids &> /dev/null |
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fi |
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done |
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sleep 1 |
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} |
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function start_bars { |
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bars="$1" |
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for bar in $bars; do |
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echo "enabling bar: $bar" |
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polybar "$bar" &> /dev/null & |
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sleep 1 |
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done |
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} |
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function enable_monitor { |
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name="$(resolve_monitor "$1")" |
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if [[ "$(monitor_exists "$name")" != "true" ]]; then |
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echo "invalid monitor: $1" |
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exit 1 |
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fi |
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size="$(jq '.monitors["'$name'"].size')" |
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position="$(jq '.monitors["'$name'"].position')" |
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bars="$(jq '.monitors["'$name'"].bars')" |
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echo "enabling monitor: $name" |
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xrandr --output "$name" \ |
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--mode "$size" \ |
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--pos "$position" \ |
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--rotate "normal" |
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if [[ "$bars" != "" ]]; then |
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kill_bars "$bars" |
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enable_bars "$bars" |
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fi |
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} |
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function disable_monitor { |
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name="$(resolve_monitor "$1")" |
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if [[ "$(monitor_exists "$name")" != "true" ]]; then |
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echo "invalid monitor: $1" |
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exit 1 |
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fi |
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bars="$(jq '.monitors["'$name'"].bars')" |
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kill_bars "$bars" |
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echo "disabling monitor: $name" |
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xrandr --output "$name" --off |
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} |
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function usage { |
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script_name="$1" |
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echo "Usage: $script_name <command> <monitor>" |
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echo "Available Commands:" |
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echo " list List the available monitors." |
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echo " enable <monitor> Enable the specified monitor." |
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echo " disable <monitor> Disable the specified monitor." |
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echo |
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echo "Example:" |
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echo " $script_name enable HDMI-1" |
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echo " $script_name disable DVI-D-1" |
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exit 1 |
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} |
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command="$1" |
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case "$command" in |
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"list") list_monitors;; |
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"enable") enable_monitor "$2";; |
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"disable") disable_monitor "$2";; |
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*) usage "$0";; |
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esac |
