.ruby-version support

[Bert Driehuis]

I'm replacing an rbenv based deployment mechanism with brightbox packages, and I would like to avoid having to call specific binaries like gem2.3. I'm looking for a very lightweight rbenv replacement that picks the binaries that match the .ruby-version file, but my Google-fu did not turn up any that are compatible with the Brightbox packages.

Of course, writing a script that sets up a directory tree under /opt/rubies or ~/.gem/n.n/bin with symlinks to the respective binaries is not rocket surgery but I was hoping someone already did the heavy lifting, or that I'm overlooking the obvious (the directory tree described would allow using chruby FWIW).

With kind regards,

Bert

[Glenn Pratt]

Have you considered update-alternatives?

http://manpages.ubuntu.com/manpages/bionic/en/man1/update-alternatives.1.html

https://www.brightbox.com/docs/ruby/ubuntu/#switching-the-default-ruby-version

[Glenn Pratt]

Have you considered update-alternatives?

http://manpages.ubuntu.com/manpages/bionic/en/man1/update-alternatives.1.html

https://www.brightbox.com/docs/ruby/ubuntu/#switching-the-default-ruby-version

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[Bert Driehuis]

On Wednesday, September 11, 2019 at 7:55:15 PM UTC+2, Glenn Pratt wrote:

Have you considered update-alternatives?

Yes I have. The attraction of rbenv/chruby/rvm is that it guarantees that the Ruby version the app was tested against is the version it will be deployed against, or it won't start up at all.

Also, update-alternatives can not be set per app.

I'm half considering dumping the whole issue by going the container route, but that brings with it its own can of worms.

With kind regards,

Bert

[Shireesh Jayashetty]

Have you considered using ruby-switch CLI? it comes with brightbox ruby I think.

https://www.brightbox.com/docs/ruby/ubuntu/#switching-the-default-ruby-version

Regards

Shrieesh

[Shireesh Jayashetty (eLitmus)]

Have you considered using ruby-switch CLI? it comes with brightbox ruby I think.

Regards

Shrieesh

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[Bert Driehuis]

Dear Shireesh,

Have you considered using ruby-switch CLI? it comes with brightbox ruby I think.

Yes I have. It is a wrapper around update-alternatives and requires root to use, so it does not fit the problem.

I'm going to give up on this for now. Maybe I'll get to it later. It shouldn't be too hard to hook a script to apt (using apt.conf.d) that sets up a symlink forest for chruby to use, but for now switching to docker is likely to be the faster option.

Thanks to all who thought along!

With kind regards,

Bert