Symfony version(s) affected

6.2.5

Description

When the progressChar is more than one character wide, it causes an error when updating the progress bar at almost the end.

PHP Fatal error:  Uncaught ValueError: str_repeat(): Argument #2 ($times) must be greater than or equal to 0 in /app/vendor/symfony/console/Helper/ProgressBar.php:511
Stack trace:
#0 /app/vendor/symfony/console/Helper/ProgressBar.php(511): str_repeat()
#1 /app/vendor/symfony/console/Helper/ProgressBar.php(572): Symfony\Component\Console\Helper\ProgressBar::Symfony\Component\Console\Helper\{closure}()
#2 [internal function]: Symfony\Component\Console\Helper\ProgressBar->Symfony\Component\Console\Helper\{closure}()
#3 /app/vendor/symfony/console/Helper/ProgressBar.php(585): preg_replace_callback()
#4 /app/vendor/symfony/console/Helper/ProgressBar.php(411): Symfony\Component\Console\Helper\ProgressBar->buildLine()
#5 /app/progress_error.php(10): Symfony\Component\Console\Helper\ProgressBar->display()
#6 {main}
  thrown in /app/vendor/symfony/console/Helper/ProgressBar.php on line 511

This doesn't always trigger, depending on redraw frequency and number of bar steps.

It's caused by this line returning a negative number in certain situations:

How to reproduce

<?php

require 'vendor/autoload.php';

$output = new \Symfony\Component\Console\Output\ConsoleOutput();
$bar = new \Symfony\Component\Console\Helper\ProgressBar($output);

$bar->setProgressCharacter("> ");
$bar->setMaxSteps(100);
$bar->setProgress(99);

Possible Solution

No response

Additional Context

I encountered this error when reproducing the format from the ProgressBarTest->testAnsiColorsAndEmojis() test, and it has a progress character longer than one as well.

This test's progress bar is only o to 15, so I believe it doesn't trigger the error simply because the progress character doesn't get close enough to the end of the bar.

Additionally, what lead me here was because the documentation has this cool progress bar format but no code on how to produce it.

I believe the above mentioned test is an earlier version of this (from 5.3):