Github user HyukjinKwon commented on the issue:
https://github.com/apache/spark/pull/19959
Just for a refreshing reminder about
https://github.com/apache/spark/pull/19959#discussion_r156536774.
One problem was how to deal with other branches too in our single
environment. If this is simply upgraded in workers, it might cause style
checking failures in other branches, if I understood correctly. Here,
https://github.com/apache/spark/pull/19290, I fixed the styles in a batch
caught by `jimhester/lintr@5431140` so it's fine in the master but might be
broken in other branches if lintr is upgraded naively in workers.
One suggestion was virtual env in R by @shivaram
[here](https://issues.apache.org/jira/browse/SPARK-22063?focusedCommentId=16187551&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16187551).
Another quick suggestion was to install it by controlling this by Jenkins
environment variable, which I don't even like but at least works -
https://github.com/apache/spark/pull/19290#issuecomment-333365703
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