[wp-trac] [WordPress Trac] #53687: `grunt verify:old-files` incorrectly flagging certain files

[WordPress Trac]

#53687: `grunt verify:old-files` incorrectly flagging certain files
------------------------------+---------------------------
 Reporter:  desrosj           |      Owner:  (none)
     Type:  defect (bug)      |     Status:  new
 Priority:  normal            |  Milestone:  5.8.1
Component:  Build/Test Tools  |    Version:  5.7
 Severity:  normal            |   Keywords:  needs-testing
  Focuses:                    |
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 In [50441], a PHPUnit test that verified built files were not included in
 the `$_old_files` list was moved into a Grunt task, `verify:old-files`.

 For some reason, this is incorrectly flagging a few files that were
 removed and should be included in this list for WordPress 5.8:

 - `wp-includes/css/dist/editor/editor-styles.min.css`
 - `wp-includes/css/dist/editor/editor-styles-rtl.css`
 - `wp-includes/css/dist/editor/editor-styles-rtl.min.css`
 - `wp-includes/css/dist/editor/editor-styles.css`

 A build error is only encountered when running `build`, `build:dev` does
 not result in an error.

 It seems that the `-rtl` and `.min` parts of the file are the culprit
 because `wp-includes/css/dist/editor/editor-styles.css` is not resulting
 in the task failing.

 I don't necessarily think that this is a blocker for WordPress 5.8. The
 `$_old_files` list is run over for every update. So these files can be
 added in 5.8.1 and they will be removed appropriately.

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Ticket URL: <https://core.trac.wordpress.org/ticket/53687>
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