download_file() {
    # Download a file with the preferred downloader
    # first arg $1 is the URL
    # second arg $2 is the output file
    if [[ $downloader =~ .+wget$ ]]
    then
        # wget
        if "$downloader -c -O $2 -- $1"
        then
            return 0
        else
            return 1
        fi
    else # we can just else instead of elif since we know we have curl
        # curl
        if "$downloader -L $1 -o $2"
        then
            return 0
        else
            return 1
        fi
    fi
}

download_file_simple() {
    # Download a file with the preferred downloader
    # first arg $1 is the URL
    # second arg $2 is the output file
    if [[ $downloader =~ .+wget$ ]]
    then
        # wget
        if "$downloader -c -- $1"
        then
            return 0
        else
            return 1
        fi
    else # we can just else instead of elif since we know we have curl
        # curl
        if "$downloader -L $1"
        then
            return 0
        else
            return 1
        fi
    fi
}