Steps to reproduce

Run asdf. In help output a line is printed for the asdf env command:

asdf env <command> [executable]      Prints or runs an executable under a command environment

I would assume <command> is an arbitrary command. But from what I can tell needs to be a plugin name or a shim name? I'm also not sure how this differs from executing the shim directly.

FY

It seems that the current behavior when rvm automatically switches Ruby versions is to do it silently if it's by .ruby-version or, if it's because of a Gemfile, display that three-line warning about how Heroku does it too and with instructions on how not to show that warning again.

I think .ruby-version switching the Ruby version silently is not great, because it requires that the user remember

fullstaq-rbenv recently gained a new feature: .ruby-variant: fullstaq-labs/fullstaq-rbenv#4
The documentation for that should be incorporated back to fullstaq-ruby-server-edition.

It looks like RVM is no longer updating their binaries for newer OS versions:

chruby-fish ❯ make test

./test/setup
>>> Downloading https://rvm.io/binaries/osx/10.13/x86_64/ruby-2.2.5.tar.bz2 ...
--2018-09-15 10:23:47--  https://rvm.io/binaries/osx/10.13/x86_64/ruby-2.2.5.tar.bz2
Resolving rvm.io (rvm.io)... 151.101.130.49, 151.101.194.49, 151.101.2.49, ...
Connecting to rvm.io