# 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