Add lane to fetch/update dev certificates

[mokagio]

What it says on the title 😄

Internal ref: https://a8c.slack.com/archives/CC7L49W13/p1719944861778989?thread_ts=1717565067.749429&cid=CC7L49W13

[mokagio]

As far as I know, we are only using iOS at the moment.

But given the app is built with React Native, this will save us a warning/error if we'll ever run with platform :android

[spencertransier]

I tested the signing lanes and they worked as expected 👍

I just had one curiosity question about the naming of the methods.

[spencertransier]

Is the underscore meant to signify that this method shouldn't be called directly?

[mokagio]

Actually... 🤔 My original intention was do distinguish the name of the method from the name of the lane, but there is no set_up_code_signing lane so this approach is redundant.

Prefixing names with underscore is a convention in some environments to mark the prefixed thing as private, e.g. https://stackoverflow.com/a/15072306/809944

But your question made me wonder whether my assumption that a lane and a method with the same name cannot coexist is correct. Turns out it isn't. I created a set_up_code_signing lane to verify it, see 2bfad90, which is also handy to regenerate all certs and profiles if need be.

Clearly the Fastlane DSL parser can distinguish between lanes and methods 😅

Furthermore, I added this to Fastfile

+
+lane :test_lane do
+  puts 'hi'
+  test_lane
+end
+
+def test_lane
+  puts 'hello'
+end

And I got this output

[20:49:06]: ------------------------------
[20:49:06]: --- Step: default_platform ---
[20:49:06]: ------------------------------
[20:49:06]: Driving the lane 'test_lane' 🚀
[20:49:06]: hi
[20:49:06]: hello
[20:49:06]: fastlane.tools finished successfully 🎉

Finally, it looks like Fastlane will give precedence to methods when running into a name clash

lane :other do
  test_lane # which will it call? the method or the lane?
end

[20:52:18]: ------------------------------
[20:52:18]: --- Step: default_platform ---
[20:52:18]: ------------------------------
[20:52:18]: Driving the lane 'other' 🚀
[20:52:18]: hello
[20:52:18]: fastlane.tools finished successfully 🎉