Best practice for grouping non-essential Gems

[Paul Menzel]

Dear Bundler folks,


if you have a free software project and add monitoring Gems to it, not
everybody is going to use the same monitoring service. In our case it’s
New Relic, so the Gem *newrelic_rpm* should be added to make our lives
easier.

Not to force anybody else to install, it was thought to make it a group
[1].

```
gem 'newrelic_rpm', group: :new_relic
```

This way, people not using New Relic, can easily avoid installing it,
running `bundle --without new_relic`.

Now I was surprised, that Ruby on Rails did not load it and I am
hesitant to change `Bundler.require` for any newly added group.

So, I am stuck here. Could you please show me a feasible, maintainable
solution? That’d be awesome!


Thanks,

Paul


[1] http://bundler.io/groups.html
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[André Arko]

Rails’ call to Bundler.require isn’t the only way to load gems. You can use require, too:

begin
require ‘newrelic_rpm’
rescue LoadError
end

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[Paul Menzel]

Dear André,

Am Samstag, den 30.01.2016, 11:37 -0800 schrieb André Arko:
> Rails’ call to Bundler.require isn’t the only way to load gems. You
> can use require, too:
>
> begin
> require ‘newrelic_rpm’
> rescue LoadError
> end

Interesting! Thank you for the suggestion.

I am still searching for a way, where this would happen right out of the
box, so that only one place, in this case `Gemfile`, has to be adapted.
Otherwise this would be too much hassle to add all the Gems and it might
be better, if each user adds the desired Gems itself. That would be
extra maintenance stuff.


Thanks,

Paul