Someone else pointed out on the forum post I made that the reason I might be confused is because `crypto` _is_ included in all of the specific Erlang/OTP packages/distributions I'm using – but that that wouldn't be guaranteed for any such possible Erlang/OTP package/distribution.
I _think_ my confusion has mostly been dissolved – I've just been 'lucky' in that `crypto` has been, by default, a part of the Erlang/OTP that I've been using. Thanks for your help! On Tuesday, September 21, 2021 at 12:13:06 PM UTC-4 José Valim wrote: > You will get warnings in recent Elixir versions because the app is missing. > > It may fail if you assemble a release and no other app depends on crypto. > > On Tue, Sep 21, 2021 at 18:02 Kenny Evitt <kenny...@gmail.com> wrote: > >> Thanks! >> >> Does the example code for that module in the guide work _without_ adding >> the module to `:extra_applications` because I'm running it on my 'dev' >> computer? In the test project I used, there are NO (explicit) Mix deps, so >> I don't _think_ `crypto` could be being pulled in via some other dependency. >> >> On Tuesday, September 21, 2021 at 11:39:25 AM UTC-4 José Valim wrote: >> >>> The wording here is definitely confusing. Erlang is a collection of >>> applications and crypto is one of them. You need to include all of Erlang >>> applications, outside of "kernel" and "stdlib" apps, in extra_applications. >>> I will clarify the guides. Thanks! >>> >>> >>> On Tue, Sep 21, 2021 at 5:33 PM Kenny Evitt <kenny...@gmail.com> wrote: >>> >>>> On the Erlang libraries page of the current guide, for the `crypto` >>>> module >>>> <https://elixir-lang.org/getting-started/erlang-libraries.html#the-crypto-module> >>>> : >>>> >>>> > The `:crypto` module is not part of the Erlang standard library, but >>>> is included with the Erlang distribution. This means you must list >>>> `:crypto` in your project’s applications list whenever you use it. To do >>>> this, edit your `mix.exs` file to include: >>>> > >>>> > ``` >>>> > def application do >>>> > [extra_applications: [:crypto]] >>>> > end >>>> > ``` >>>> >>>> But in a reply on a recent Elixir Forum post >>>> <https://elixirforum.com/t/help-with-reading-typespecs-for-erlang-crypto-module/42423/7>, >>>> >>>> someone claimed: >>>> >>>> > `:crypto` is a part of and is distributed with Erlang/OTP ... >>>> >>>> And that doesn't seem to contradict what's in the Getting Started guide. >>>> >>>> But I'm confused as to why that module should be added to the >>>> `:extra_applications` key. I just tried running the example code from the >>>> guide in a 'scratchpad' project that has NO (explicit) Mix deps, and only >>>> `:logger` listed in `:extra_applications` and the code worked fine in >>>> `iex`. Does that code work because I'm running it on my 'dev' computer? >>>> Would NOT adding `:crypto` to `:extra_applications` present a problem were >>>> I to deploy that project's code to another computer? >>>> >>>> Or is `crypto` now (somehow) part of "the Erlang standard library"? >>>> >>>> I'm just curious! But, if the guide is now incorrect about this, I'd be >>>> happy to submit a PR with any suitable changes. >>>> >>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "elixir-lang-core" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to elixir-lang-co...@googlegroups.com. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/elixir-lang-core/58f100bd-b79c-4893-8f1f-ec8aea26d81dn%40googlegroups.com >>>> >>>> <https://groups.google.com/d/msgid/elixir-lang-core/58f100bd-b79c-4893-8f1f-ec8aea26d81dn%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> -- >> You received this message because you are subscribed to the Google Groups >> "elixir-lang-core" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to elixir-lang-co...@googlegroups.com. >> > To view this discussion on the web visit >> https://groups.google.com/d/msgid/elixir-lang-core/de5e8144-d3ff-4805-a903-4d2b084ebbfan%40googlegroups.com >> >> <https://groups.google.com/d/msgid/elixir-lang-core/de5e8144-d3ff-4805-a903-4d2b084ebbfan%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "elixir-lang-core" group. To unsubscribe from this group and stop receiving emails from it, send an email to elixir-lang-core+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elixir-lang-core/2af8fca3-6cee-4b4f-95f0-e3a49cf59091n%40googlegroups.com.
