mirror of https://gitlab.com/dabruh/dotfiles.git
108 lines
2.9 KiB
Bash
108 lines
2.9 KiB
Bash
#!/bin/bash
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# This script contains utility functions related to X monitors.
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_monitors=() # Cache for the xrandr output
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# Get the list of connected and disconnected monitors.
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# Usage: _get_monitors
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_get_monitors() {
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set -euo pipefail
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local monitors enabled_regex="[[:digit:]]+x[[:digit:]]+\+[[:digit:]]+\+[[:digit:]]+" # Regex for enabled monitors
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if [ ${#_monitors[@]} -eq 0 ]; then
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monitors=$(xrandr | grep -Eo "^.* ((dis|)connected)( primary|) ($enabled_regex|)" | sed 's/ /,/g' | sed 's/,$//g')
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for monitor in $monitors; do
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if [[ "$monitor" =~ $enabled_regex ]]; then
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monitor="$monitor,enabled"
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else
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monitor="$monitor,disabled"
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fi
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_monitors+=("$monitor")
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done
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fi
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for monitor in "${_monitors[@]}"; do
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echo "$monitor"
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done
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}
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# Function to get all monitors with optional filters.
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# Usage: get_monitors [filter1] [filter2] ...
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get_monitors() {
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set -euo pipefail
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local monitors
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monitors=$(_get_monitors)
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if [ "$#" -eq 0 ]; then
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echo "$monitors"
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return 0
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fi
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for monitor in $monitors; do
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for filter in "$@"; do
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for part in ${monitor//,/ }; do
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if [ "$part" = "$filter" ]; then
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echo "$monitor"
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continue 3 # Continue to the next monitor
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fi
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done
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done
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done
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}
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# Check if the specified monitor is connected.
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# Usage: monitor_exist <monitor_name>
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monitor_exist() {
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set -euo pipefail
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local monitor=${1:?Monitor not set}
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local connected_monitors
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connected_monitors=$(get_monitors connected)
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for connected_monitor in $connected_monitors; do
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echo "Processing monitor $connected_monitor" 1>&2
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if [ "$(cut -d',' -f1 <<<"$connected_monitor")" = "$monitor" ]; then
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return 0
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fi
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done
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return 1
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}
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# Check if specified monitors are connected.
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# Usage: monitors_exist <monitor1> [monitor2] ...
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monitors_exist() {
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set -euo pipefail
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local monitor matches=0
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for monitor in "$@"; do
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echo "Checking if monitor $monitor exists" 1>&2
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if monitor_exist "$monitor"; then
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echo "$monitor"
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matches=$((matches + 1))
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fi
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done
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if [ "$matches" -ne "$#" ]; then
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echo "Amount of devices does not match the amount of arguments ($#: $*)" 1>&2
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return 1
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fi
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return 0
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}
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# Disable all monitors that are not connected.
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# Usage: disable_disconnected_monitors
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disable_disconnected_monitors() {
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set -euo pipefail
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local connected_monitors
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connected_monitors=$(get_monitors disconnected)
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echo "Disabling disconnected monitors"
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for monitor in $connected_monitors; do
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echo "Disabling monitor $(cut -d',' -f1 <<<"$monitor")"
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xrandr --output "$(cut -d',' -f1 <<<"$monitor")" --off
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done
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}
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