Configuration.Dotenv

This module contains common functions to load and read dotenv files.

Documentation

load

Arguments

:: MonadIO m

=> Bool

Override existing settings?

-> [(String, String)]

List of values to be set in environment

-> m ()

Loads the given list of options into the environment. Optionally override existing variables with values from Dotenv files.

loadFile

Arguments

:: MonadIO m

=> Bool

Override existing settings?

-> FilePath

A file containing options to load into the environment

-> m ()

Loads the options in the given file to the environment. Optionally override existing variables with values from Dotenv files.

parseFile

Arguments

:: MonadIO m

=> FilePath

A file containing options to read

-> m [(String, String)]

Variables contained in the file

Parses the given dotenv file and returns values without adding them to the environment.

onMissingFile

Arguments

:: MonadCatch m

=> m a

Action to perform that may fail because of missing file

-> m a

Action to perform if file is indeed missing

-> m a

The helper allows to avoid exceptions in the case of missing files and perform some action instead.

Since: 0.3.1.0