View Source Credo.Check.Warning.ApplicationConfigInModuleAttribute (Credo v1.7.2-rc.4)
This check has a base priority of high
and works with any version of Elixir.
Explanation
Module attributes are evaluated at compile time and not at run time. As a result, certain configuration read calls made in your module attributes may work as expected during local development, but may break once in a deployed context.
This check analyzes all of the module attributes present within a module, and validates that there are no unsafe calls.
These unsafe calls include:
Application.fetch_env/2
Application.fetch_env!/2
Application.get_all_env/1
Application.get_env/3
Application.get_env/2
As of Elixir 1.10 you can leverage Application.compile_env/3
and
Application.compile_env!/2
if you wish to set configuration at
compile time using module attributes.
Check-Specific Parameters
There are no specific parameters for this check.
General Parameters
Like with all checks, general params can be applied.
Parameters can be configured via the .credo.exs
config file.