Re: Bundler 2

[Christopher Baines <mail@cbaines.net>]

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Josh Holland <josh@inv.alid.pw> writes:

> In the course of some fairly involved yak-shaving, I found the need to
> run a Ruby package, and tried running `guix environment --ad-hoc bundler
> ruby`.  However, running it produced an error:
>
> $ bundle install
> Traceback (most recent call last):
> 	2: from /gnu/store/5flpa8h2adwb86n49r7p3mbp11p0jafr-profile/bin/bundle:23:in `<main>'
> 	1: from /gnu/store/9yqh0g1p5bmxar8dlfp84j4py3j631jv-ruby-2.6.5/lib/ruby/2.6.0/rubygems.rb:302:in `activate_bin_path'
> /gnu/store/9yqh0g1p5bmxar8dlfp84j4py3j631jv-ruby-2.6.5/lib/ruby/2.6.0/rubygems.rb:283:in `find_spec_for_exe': Could not find 'bundler' (2.1.0.pre.2) required by your /home/josh/c/gnome-dbus-emulation-wlr/Gemfile.lock. (Gem::GemNotFoundException)
> To update to the latest version installed on your system, run `bundle update --bundler`.
> To install the missing version, run `gem install bundler:2.1.0.pre.2`
>
> Indeed I see that gnu/packages/ruby.scm only packages Bundler v1.17.3,
> though Bundler 2 was released in January 2019 [0].  I'm not hugely
> familiar with the Ruby ecosystem, but reading the release announcement
> suggests that they expect users/developers to have both Bundler 1 and
> Bundler 2 available.  If I hadn't seen this, I'd have gone ahead and
> submitted a patch simply upgrading the Bundler package definition, but
> I'm not sure if that will then immediately break every package depending
> on it that expects Bundler 1.
>
> Is this a valid concern?  Should Guix provide packages for both Bundler
> 1 and Bundler 2, or would just Bundler 2 be sufficient?  I'll still
> write a definition for the new version, but I'll hold off submitting a
> patch until I've had some feedback.
>
> [0]: https://bundler.io/blog/2019/01/03/announcing-bundler-2.html

Hi Josh,

I'm not particularly sure, but it's probably easier to just provide
both. Note that bundler has quite few dependencies in Guix [1], so it
would be interesting to see if these all build with Bundler 2.

1:
→ guix refresh -l bundler
Building the following 37 packages would ensure 182 dependent packages
are rebuilt

Thanks for looking in to this,

Chris

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