[wp-trac] [WordPress Trac] #47767: Simplify and backport the local environment

[WordPress Trac]

#47767: Simplify and backport the local environment
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 Reporter:  pento                    |       Owner:  pento
     Type:  enhancement              |      Status:  assigned
 Priority:  normal                   |   Milestone:  5.3
Component:  Build/Test Tools         |     Version:
 Severity:  normal                   |  Resolution:
 Keywords:  needs-testing has-patch  |     Focuses:
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Comment (by pento):

 In [attachment:"47767.18.diff"]:
 - `npm run env:install` now sets up a `wp-tests-config.php`.
 - A bunch of unnecessary cruft is gone from .travis.yml.


 > I noticed some places where the JavaScript doesn't quite follow our
 JavaScript coding standards and so ran the Gutenberg lint tool on these
 changes, see below. (Does Core have a similar tool? Could we get it to
 check these new files?)

 Core uses JSHint, but it's configured for ES5, not ES6. I don't know if
 anyone is working merging the different tools between Gutenberg and Core.

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Ticket URL: <https://core.trac.wordpress.org/ticket/47767#comment:39>
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