# SHOULD BE INCLUDED WITH source or . from a bash script

# EXAMPLE
# log_functions=./log_functions.sh
# [[ -f $log_functions ]] || { echo "[FATAL] Missing $log_functions" >&2 ; exit 1 ;}
# source $log_functions

log_any()
{
  priority=$1
  shift
  echo "[$priority] $@" >&2
}

log_fatal()
{
   log_any FATAL "$*"
}

log_error()
{
   log_any ERROR "$*"
}

log_warn()
{
   log_any WARN "$*"
}

log_info()
{
   log_any INFO "$*"
}

log_debug()
{
    [[ -n $debug ]] && log_any DEBUG "$*"
}


deferpipe()
{
    cat
    echo "# <previous line> | $@"
}

autoquoteargs()
{
    echo -n "$1"
    shift
    while [[ $# > 0 ]]
    do
        if [[ "$1" =~ [\ \$] ]]
        then
            echo -n " '$1'"
        else
            echo -n " $1"
        fi
        shift
    done
    echo
}

echoarray()
{
    declare -a arr=("${@}")
    declare -i len=${#arr[@]}
    # Show passed array
    for ((n = 0; n < len; n++))
    do
        echo -en " \"${arr[$n]}\""
    done
    echo
}

include_source()
{
    if [[ -f $1 ]]
    then
        source $1
    else
        log_fatal "Missing $1 script"
        exit 1
    fi    
}

verbose()
{
    [[ -n $verbose ]] && log_any $verbose $@
}