Mix.Project.config_files

You're seeing just the function config_files, go back to Mix.Project module for more information.

Specs

config_files() :: [Path.t()]

Returns a list of project configuration files for this project.

This function is usually used in compilation tasks to trigger a full recompilation whenever such configuration files change.

It returns the mix.exs file, the lock manifest, and all config files in the config directory that do not start with a leading period (for example, .my_config.exs).