Add support for gems.rb/gems.locked during bundle install.

[ioquatix]

Fixes part of #52 - doesn't work with gems.rb.

[eregon]

It looks like you missed this case:

setup-ruby/index.js

Line 178 in a2ee959

const gemfilePath = `${process.env['BUNDLE_GEMFILE'] || 'Gemfile'}.lock`

[eregon]

Thanks for the PR.
Please let me review before merging since I'm the maintainer.

[eregon]

Is there any reason to use gems.rb over Gemfile?
Any adoption of that? It seems extremely few projects use it.

I'm not looking forward to support every possible experimental Bundler feature, due to the cost to maintain that.
It seems Rails also considers it as a rather pointless change: rails/rails#31295

[eregon]

bundleInstallSpecific does not return in the successful case.
Does the if work here? It doesn't seem so:

> async function foo() { console.log("foo"); }
> async function call() { var r=await foo(); console.log(r); if (r) { console.log("OK") } else { console.log("NOPE") } }
undefined
> call()
foo
Promise { <pending> }
> undefined
NOPE

[eregon]

I'll revert this, let's review & discuss it properly before merging.

[ioquatix]

I’m already using it so please don’t revert it. Why don’t we just fix the issues you have. I tested both cases in my own repos and it seemed to work fine.

[eregon]

I’m already using it

How, since it's not released?
Please make a new PR and let's get it fully ready before merge & release.

[ioquatix]

I am using master.

https://github.com/ioquatix/bake/runs/1064255388?check_suite_focus=true

[eregon]

I see, sorry about that.
Using @master is expected to be unstable: https://github.com/actions/toolkit/blob/master/docs/action-versioning.md#compatibility

[ioquatix]

Sure, I completely understand your POV, but I think it warranted just a tiny bit more discussion, given how easy it is to make the changes you requested.

[ioquatix]

Can you please review #84