bash-completion/completions/gzip

# bash completion for gzip

have gzip || have pigz || return

_gzip()
{
    local cur prev words cword
    _init_completion || return

    case $prev in
        -b|--blocksize|-p|--processes|-S|--suffix|-h|--help|-V|--version)
            return 0
            ;;
    esac

    if [[ "$cur" == -* ]]; then
        COMPREPLY=( $( compgen -W '$( _parse_help "$1" ) {-1..-9}' \
            -- "$cur" ) )
        return 0
    fi

    local IFS=$'\n' xspec="*.@(gz|t[ag]z)"

    if [[ "$prev" == --* ]]; then
        [[ "$prev" == --decompress || \
            "$prev" == --list || \
            "$prev" == --test ]] && xspec="!"$xspec
        [[ "$prev" == --force ]] && xspec=
    elif [[ "$prev" == -* ]]; then
        [[ "$prev" == -*[dlt]* ]] && xspec="!"$xspec
        [[ "$prev" == -*f* ]] && xspec=
    fi

    _expand || return 0

    compopt -o filenames
    COMPREPLY=( $( compgen -f -X "$xspec" -- "$cur" ) \
        $( compgen -d -- "$cur" ) )
} &&
complete -F _gzip gzip pigz

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