env

Documentation

Overview

Package env contains functions that retrieve data from the environment

Index

• func ExpandEnv(s string) string
• func Getenv(key string, def ...string) string
• func LookupEnv(key string) (string, bool)

Functions

func ExpandEnv

func ExpandEnv(s string) string

ExpandEnv - like os.ExpandEnv, except supports `_FILE` vars as well

func Getenv

func Getenv(key string, def ...string) string

Getenv - retrieves the value of the environment variable named by the key. If the variable is unset, but the same variable ending in `_FILE` is set, the referenced file will be read into the value. Otherwise the provided default (or an emptry string) is returned.

func LookupEnv

func LookupEnv(key string) (string, bool)

LookupEnv - retrieves the value of the environment variable named by the key. If the variable is unset, but the same variable ending in `_FILE` is set, the referenced file will be read into the value. If the key is not set, the second return value will be false. Otherwise the provided default (or an emptry string) is returned.