package env

import "os"

// Get retrieves the value of the environment variable named
// by the key. If the variable is present in the environment the
// value (which may be empty) is returned. Otherwise it returns
// the specified default value.
func Get(key, defaultValue string) string {
	if v, ok := os.LookupEnv(key); ok {
		return v
	}
	return defaultValue
}

// Lookup retrieves the value of the environment variable named
// by the key. If the variable is present in the environment the
// value (which may be empty) is returned and the boolean is true.
// Otherwise the returned value will be empty and the boolean will
// be false.
func Lookup(key string) (string, bool) { return os.LookupEnv(key) }