0811b29b63
This PR was merged into the 2.6-dev branch.
Discussion
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[Console] add overwrite flag to ProgressBar helper to allow non-decorated output
| Q | A
| ------------- | ---
| Bug fix? | no
| New feature? | yes
| BC breaks? | yes, but not critical
| Deprecations? | no
| Tests pass? | yes
| Fixed tickets | #11542, #10011
| License | MIT
| Doc PR | symfony/symfony-docs#4206
By default, the `ProgressBar` helper overwrites the output to give the nice progress bar look. To prevent the output from blowing up in non-decorated environments, the output was hidden in these environments (see #9846).
This PR enables using the `ProgressBar` in non-decorated environments by adding an `overwrite` flag. When `false`, instead of overwriting the bar, it is rendered on a new line. To prevent flooding the output, you can adjust the `redrawFrequency`.
By default, when using the `ProgressBar` in a non-decorated environment, the `overwrite` flag is set to false. If a `max` is set, the `redrawFrequency` is set to a sensible default (10% of the max). If a `max` isn't set, the bar is output for every advance so to prevent flooding, a sensible `redrawFrequency` should be manually set.
The only BC break is that output will now display where it didn't before.
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