aesmail
Compiling and loading modules dynamically
I have a bit of an unconventional situation.
I have an app that generates files at runtime. Those files contain valid elixir code (modules basically). I need to compile them and load them at runtime.
I am able to do most of that with Code.compile_file, Code.require_file, and friends.
However, I need to be able to check what new modules have been compiled (or all the modules currently loaded in my app).
I’m using :application.get_key(:my_app, :modules) which lists all modules correctly when the app starts, but this doesn’t include the newly compiled modules at runtime.
Any idea how to achieve that?
All I care about is, I need to compile random modules at runtime and I need to know about all the newly generated modules that were compiled randomly at runtime.
Thanks!
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OvermindDL1
Personally I’d have the files register themselves, you might have tools and such you don’t want loaded via your normal way as well after all. 
dimitarvp
I seem to remember the core team saying that there are compiler callbacks or some such now but I am not able to immediately find anything on it.
xlphs
If you only care about newly compiled modules, and your app is the one that compiles and loads each module, you can store each module name or the file name into an Agent or your own GenServer.
axelson
You might be able to glean something from https://github.com/falood/exsync
It watches the beam folder and loads new beam files it sees. It’s meant for development but that approach could be adapted to prod
aesmail
Thanks for the suggestion. This is definitely a workaround, but I would feel more comfortable if there was something built-in that could handle this. I believe there’s a way with the help of erlang modules but it’s not documented clearly.
Interesting package. I’m going to take a few ideas from this. Thanks!
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