blob: 784b95921bcba952d07064687fcbe9f42021404a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
#pragma once
/**
* @file
*
* Utilities for working with the current process's environment
* variables.
*/
#include <map>
#include <optional>
#include <string>
namespace nix {
/**
* @return an environment variable.
*/
std::optional<std::string> getEnv(const std::string & key);
/**
* @return a non empty environment variable. Returns nullopt if the env
* variable is set to ""
*/
std::optional<std::string> getEnvNonEmpty(const std::string & key);
/**
* Get the entire environment.
*/
std::map<std::string, std::string> getEnv();
/**
* Clear the environment.
*/
void clearEnv();
/**
* Replace the entire environment with the given one.
*/
void replaceEnv(const std::map<std::string, std::string> & newEnv);
}
|
