如何使用Term :: ProgressBar和LWP :: UserAgent的post方法制作進度欄？

Question

#!/usr/bin/perl

use LWP::UserAgent;
use HTTP::Request::Common;
use HTML::TreeBuilder;
use Cwd 'realpath';

use warnings;
use strict;

my $ua = LWP::UserAgent->new();

my $response = $ua->request(
                POST 'http://mydomain.com/upload.php',
                'Content-Type' => 'multipart/form-data',
                'Content' => [ 'fileup' => [realpath(shift)] ],
              );

my $tree = HTML::TreeBuilder->new_from_content($response->decoded_content);

my $image = $tree->look_down('_tag','a',sub { $_[0]->{href} =~ /http:\/\/images.mydomain.com\/images\/[^\?]/ if $_[0]->{href}})->{href};
print "\n".$image."\n\n";

如何為此顯示上傳的腳本創建進度條？ ：content_cb讓我們在上傳圖片后為響應創建進度條，那么如何為上傳本身做呢？

Answer 1

這不能回答您最初的問題，但是也許您可以使用內置的進度條來代替：

$ua->show_progress
$ua->show_progress( $boolean )
    Get/set a value indicating whether a progress bar should be displayed on on the
    terminal as requests are processed. The default is FALSE.

（來自LWP :: UserAgent POD）