#!/bin/bash

function get_distro() {
/bin/cp /etc/os-release /tmp/os-release.tmp
if [[ $1 == "-d" ]]; then
shift 1
# docker run -it --name get_container_os --rm --entrypoint cat $1 /etc/os-release
docker create --name dummy $1 > /dev/null
docker cp -L dummy:/etc/os-release /tmp/os-release.tmp
docker rm -f dummy > /dev/null
# docker run -it --name get_container_os --rm --entrypoint cat $1 /etc/os-release > /tmp/container-os.tmp 2> /dev/null
shift 1
fi
source /tmp/os-release.tmp
declare valid=${@:-"alpine debian ubuntu"}
# echo $ID  $ID_LIKE
[[ "${valid}" =~ $ID ]] && echo $ID && return 0
[[ "${valid}" =~ $ID_LIKE ]] && echo $ID_LIKE && return 0
return 1
}

isAbsPath() {
    if [[ "${1:0:1}" == / || "${1:0:2}" == ~[/a-z] ]]
    then
        echo "true"
        return 0
    else
        return 1
    fi
}