Getting a list of all Elixir modules

[Dave Thomas]

I’m trying to create a table showing the relationship between various Elixir modules. As a starting place, I wanted to create a list of all these modules.

I tried

modules = for {name,_} <- :code.all_loaded, 
              Regex.match?(~r/^[A-Z]/, atom_to_binary(name)), 
          do: name

but (no surprise) it only lists modules that have been loaded.

Is there a decent programatic way of doing this?

Dave

[Saša Jurić]

Maybe go through all load paths (:code.get_path), and find all beam files in there?

This will get you Erlang modules as well, so you probably want to do some filtering.

[Eric Meadows-Jönsson]

Hi Dave,

:erl_prim_loader can be used to load all modules. Take a look at how Mix loads all modules to find all mix tasks:

https://github.com/elixir-lang/elixir/blob/0bacbaeff7d75c2725cd3ce5e7f780e13e1c7f21/lib/mix/lib/mix/task.ex#L52

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