perl - 使用 perl 获取文件和带前缀的文件并将其上传到 s3

Question

我正在尝试使用 Perl 中的 Amazon::S3 模块从 s3 获取文件。我能够成功下载没有前缀但无法获取前缀文件的文件，例如 test/abc.txt。

我正在使用下面的代码。

sub export_bucket {
  my ($conn, $bucket, $directory) = @_;
  $bucket = $conn->bucket($bucket);
  my $response = $bucket->list();
  print $response->{bucket}."\n";
  for my $key (@{ $response->{keys} }) {
        print "\t".$key->{key}."\n";  
        _export_file($conn,$bucket,$key->{key}, $directory.'/'.$key->{key});
  }
}

sub _export_file {
  my ($conn,$bucket,$name,$path) = @_;
  print "Downloading $name file","\n";
  my $test = $bucket->get_key_filename($name,'GET',$path);
  print Dumper($test);
  my $acl = $bucket->get_acl($name);
  print Dumper($acl);
  open my $acl_file, '>', $path.'.acl';
  print $acl_file $acl;
  close $acl_file;
}

建议我应该进行哪些更改，以便在出现前缀/文件夹时我也应该能够下载该文件夹。

谢谢

Answer 1

如果目标目录尚不存在，您需要修改代码以在本地文件系统上创建目标目录。它应该看起来像这样:

use File::Path qw[make_path];

sub export_bucket {
    my ( $conn, $bucket, $directory ) = @_;
    $bucket = $conn->bucket($bucket);
    my $response = $bucket->list();
    print $response->{bucket} . "\n";
    for my $key ( @{ $response->{keys} } ) {
        print "\t" . $key->{key} . "\n";
        _export_file( $conn, $bucket, $key->{key}, $directory . '/' . $key->{key} );
    }
}

sub _export_file {
    my ( $conn, $bucket, $name, $path ) = @_;
    print "Downloading $name file", "\n";
    my $test = $bucket->get_key_filename( $name, 'GET', $path );
    print Dumper($test);
    my $acl = $bucket->get_acl($name);
    print Dumper($acl);

    ## get path directory part
    my ($dir_part) = $path =~ /(.+)\/[^\/]+$/;

    unless ( -d $dir_part ) {
        make_path($dir_part);
    }

    open my $acl_file, '>', $path . '.acl';
    print $acl_file $acl;
    close $acl_file;
}