renv integrations?

[edavidaja]

Thank you for this tool! I think it's going to make lots of people's workflows a whole lot easier.

I mostly use renv to manage projects; since the renv.lock captures the version of R I snapshotted the library with, it would be cool if I could use rig to start RStudio with the correct version of R, and possibly with the library specified with the lockfile.

[gaborcsardi]

Yeah, rig rstudio could take a lock file. One difficulty is deciding what to do if that R version is not installed? On macOS you cannot install different patch versions for the same minor version (ie. R x.y.z1 and x.y.z1) together, so if different lock files request these, then it is quite painful to switch back and forth?

[gaborcsardi]

@edavidaja So what do you think rig should do if that version is not installed? What if only the minor version is the different? E.g. the project wants 4.1.2, but 4.1.2 is installed?

Here's what I think:

• If the same exact version is installed, start that, obviously.
• If the same minor version is installed, i.e. 4.1.x for requested 4.1.y, then give a warning and use 4.1.x.
• Otherwise stop and error.

[edavidaja]

That sounds reasonable to me. The "nearest" matching algorithm used by connect is somewhat more permissive but I think major-minor is a sane default.

[aspeddro]

A suggestion, I don't know if it's in the scope of rig

• A command to install package dependencies and R version in renv.locK, similar to npm install.