Support linting R

[davidchall]

Would it be possible to add support for linting R code? This might be achieved using https://github.com/jimhester/lintr

[markstory]

I'm not familiar with R at all, so I don't think I'd be a good person to implement the lintr integration. I am happy to help with the python/docker pieces if you know how to get lintr running, and have sample files that can be used for regression testing the tool adapter.

I wasn't able to determine from the lintr docs whether or not there was a checkstyle xml output, or a emacs/vim quickfix output option. If there adding a tool adapter will be much simpler.

[louiscpalma]

Just happened across this project while looking into modifying an in-house lint bot:

lintr can generate checkstyle reports with the checkstyle_output() function.

Page 4 of the pdf manual: https://cran.r-project.org/web/packages/lintr/lintr.pdf

Probably wouldn't integrate as nicely as ansible-lint -p, but should be manageable.

[markstory]

@louiscpalma How does one go about running lintr on one or more files? I've never used R before 😊