There is a callback that you implement for your modules called
__mix_recompile__? Which you can implement with your own logic to detect
how files and directories change. You can See how embed_templates does it
for examples. :)
On Thu, Oct 19, 2023 at 11:01 'Alexander Steppke' via elixir-lang-core <
elixir-lang-core@googlegroups.com> wrote:
> We have a need to trigger recompilation of a module when any file inside a
> directory is added or removed since we add the list of files at compilation
> time as a module attribute which is used in guard statements.
>
> Something like
>
> ```
> defmodule Example do
> @files File.ls!("some-path")
> end
> ```
>
> I think Phoenix's `embed_templates` would have to use a similar feature if
> Phoenix didn't take care of triggering recompilation itself.
>
> Implementation wise I'd think it might probably suffice to set the
> `digest` as the hash of the list of files (probably recursively?) in the
> directory, but there might be better ways to do this.
>
> If there is another already existing way to achieve the same please let me
> know, maybe I'm just missing something!
>
> Best regards, Alex.
>
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