In most applications,
configuration should be separated from code.
While it usually works well to keep configuration in the
environment, there are cases where you may want to store
configuration in a file outside of version control.
Dotenv files have become popular for storing configuration,
especially in development and test environments. In
Ruby,
Python and
Javascript there are libraries
to facilitate loading of configuration options from configuration
files. This library loads configuration to environment variables for
programs written in Haskell.
To use, call loadFile from your application:
import Configuration.Dotenv
loadFile False "/my/dotenvfile"
This package also includes an executable that can be used
to inspect the results of applying one or more Dotenv files
to the environment, or for invoking your executables with
an environment after one or more Dotenv files is applied.
See the Github
page for more information on this package.
