mktar

#!/usr/bin/env bash
#
# /usr/local/xbin/mktar
#
#
# Description:
#   A simple script to make compressed archives. It defaults
#   to xz with a fallback on gz if it’s not installed.
#
# Usage:
#   mktar [gz|bz2|zst|xz] [file | directory]
#   mktar foobar.d          # -> foobar.d.tar.xz
#   mktar gz foobar.d       # -> foobar.d.tar.gz
#

# OS X / macOS env's, incase they're not set already
if [[ $(uname -s) == 'Darwin' ]]; then
    export COPY_EXTENDED_ATTRIBUTES_DISABLE=true
    export COPYFILE_DISABLE=true
fi

# Help
[[ ${#} < 1 || ${1} == '-h' ]] && sed -n '9,14p' ${0} && exit 1;

# Vars
ERR=0;

# Check $1 for extension: xz = default | gz if not installed
[[ $(type xz 2> /dev/null) ]] && _xz='xz' || _xz='gz';
[[ ${1} =~ ^xz$|^zst$|^bz2$|^gz$ ]] && _ext=${1} && shift 1 || _ext=${_xz};

_base=$(basename ${0});
_path=$(dirname "${1}");
_dir=$(basename "${1}");
_excl=$(echo --exclude={'.DS_Store','._*'});

# Looper
if [ -e "${1}" ]; then
    cd "${_path}";

    case ${_ext} in
        bz2)    tar -cvjf "${_dir}".tar.${_ext} ${_excl} "${_dir}";     ;;
        gz)     tar -cvzf "${_dir}".tar.${_ext} ${_excl} "${_dir}";     ;;
        lz4)    tar -cvf - ${_excl} "${_dir}" \
                | lz4 -v9 > "${_dir}".tar.${_ext};                      ;;
        xz)     tar -cvf - ${_excl} "${_dir}" \
                | xz -6e > "${_dir}".tar.${_ext};                       ;;
        zst)    tar -cvf - ${_ecxl} "${_dir}" \
                | zstd -T2 --ultra -22 > "${_dir}".tar.${_ext};         ;;
        *)
            echo -e ":: ${_base}: Could not create '${_dir}.tar.${_ext}'\n";
            ERR=1;
            ;;
    esac
else
    echo -e ":: '${_dir}' is not a valid file/directory\n";
    ERR=1;
fi

exit ${ERR};