# patch(1) completion                                      -*- shell-script -*-

_patch()
{
    local cur prev words cword split
    _init_completion -s || return

    case $prev in
        --strip | --ifdef | --prefix | --basename-prefix | --suffix | --get | \
            -!(-*)[pDBYzg])
            return
            ;;
        --fuzz | -!(-*)F)
            COMPREPLY=($(compgen -W '{0..3}' -- "$cur"))
            return
            ;;
        --input | -!(-*)i)
            _filedir '@(?(d)patch|dif?(f))'
            return
            ;;
        --output | --reject-file | -!(-*)[or])
            [[ ! $cur || $cur == - ]] && COMPREPLY=(-)
            _filedir
            return
            ;;
        --quoting-style)
            COMPREPLY=($(compgen -W 'literal shell shell-always c escape' \
                -- "$cur"))
            return
            ;;
        --version-control | -!(-*)V)
            COMPREPLY=($(compgen -W 'simple numbered existing' -- "$cur"))
            return
            ;;
        --directory | -!(-*)d)
            _filedir -d
            return
            ;;
        --reject-format)
            COMPREPLY=($(compgen -W 'context unified' -- "$cur"))
            return
            ;;
        --read-only)
            COMPREPLY=($(compgen -W 'ignore warn fail' -- "$cur"))
            return
            ;;
    esac

    $split && return

    if [[ $cur == -* ]]; then
        COMPREPLY=($(compgen -W '$(_parse_help "$1")' -- "$cur"))
        [[ ${COMPREPLY-} == *= ]] && compopt -o nospace
        return
    fi

    local args
    _count_args
    case $args in
        1)
            _filedir
            ;;
        2)
            _filedir '@(?(d)patch|dif?(f))'
            ;;
    esac
} &&
    complete -F _patch patch

# ex: filetype=sh