[wp-trac] [WordPress Trac] #36291: Travis CI: Improve job performance by caching `node_modules` folder

[WordPress Trac]

#36291: Travis CI: Improve job performance by caching `node_modules` folder
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 Reporter:  netweb            |       Owner:  netweb
     Type:  enhancement       |      Status:  closed
 Priority:  normal            |   Milestone:  4.5
Component:  Build/Test Tools  |     Version:
 Severity:  normal            |  Resolution:  fixed
 Keywords:  has-patch commit  |     Focuses:
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Comment (by ocean90):

 In [changeset:"40282"]:
 {{{
 #!CommitTicketReference repository="" revision="40282"
 Build/Test Tools: Update .travis.yml to include latest improvements from
 trunk.

 * Explicitly use PHPUnit 5.7 for the PHP 7 builds on Travis.
 * On Travis CI install and use the node version which is specified in
 package.json.
 * Add some more debugging to Travis and bring the format of the Xdebug fix
 inline with branches.
 * Get Travis builds working on HHVM again.
 * In addition, brings the Slack notification settings up to date and
 allows Travis CI to cache the node_modules directory.

 Merge of [40255], [40257-40259], [40269], and [40271] to the 4.2 branch.

 See #35105, #40100, #30755, #36291, #36490.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/36291#comment:6>
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