bin/pipe-toggle at main · vxsl/bin · GitHub

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#!/bin/sh

pipe_name="generic-pipe"
indicator_on="x"
indicator_off=" "
custom_condition=""
enable_command=""
disable_command=""

off="false"
init="false"
for arg in "$@"; do
    case "$arg" in
        --off)
            off="true"
            ;;
        --init)
            init="true"
            ;;
        --pipe=*)
            pipe_name="${arg#*=}"
            ;;
        --on-indicator=*)
            indicator_on="${arg#*=}"
            ;;
        --off-indicator=*)
            indicator_off="${arg#*=}"
            ;;
        --condition=*)
            custom_condition="${arg#*=}"
            ;;
        --enable=*)
            enable_command="${arg#*=}"
            ;;
        --disable=*)
            disable_command="${arg#*=}"
            ;;
    esac
done

if [ -z "$enable_command" ] || [ -z "$disable_command" ]; then
    echo "Error: Both --enable and --disable arguments are required."
    exit 1
fi

base_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
dir="$base_dir/.tmp"
mkdir -p $dir
pipe="$dir/$pipe_name"

if [[ ! -p $pipe ]]; then
    mkfifo $pipe
fi

do_it () {
    export DISPLAY=:0.0

    eval_result="false"
    if [ -n "$custom_condition" ]; then
        eval "$custom_condition"
        eval_result=$?
    fi


    if [ "$eval_result" -eq 0 ] && [ "$off" = "false" ]; then
        eval "$enable_command"
        echo "$indicator_on" | tee $pipe | tee $pipe-copy
    else
        eval "$disable_command"
        echo "$indicator_off" | tee $pipe | tee $pipe-copy
    fi
}

if [ "$init" = "true" ]; then
    if [ ! -f "$pipe-copy" ]; then
        off=true
        do_it
    else
        cat "$pipe-copy" | tee $pipe
    fi
else
    do_it
fi