|
1
|
|
|
<?php |
|
2
|
|
|
namespace Consolidation\Config\Util; |
|
3
|
|
|
|
|
4
|
|
|
use Consolidation\Config\Config; |
|
5
|
|
|
use Consolidation\Config\ConfigInterface; |
|
6
|
|
|
|
|
7
|
|
|
/** |
|
8
|
|
|
* Provide a configuration object that fetches values from environment |
|
9
|
|
|
* variables. |
|
10
|
|
|
*/ |
|
11
|
|
|
class EnvConfig implements ConfigInterface |
|
12
|
|
|
{ |
|
13
|
|
|
/** @var string */ |
|
14
|
|
|
protected $prefix; |
|
15
|
|
|
|
|
16
|
|
|
/** |
|
17
|
|
|
* EnvConfig constructor |
|
18
|
|
|
* |
|
19
|
|
|
* @param $prefix The string to appear before every environment |
|
20
|
|
|
* variable key. For example, if the prefix is 'MYAPP_', then |
|
21
|
|
|
* the key 'foo.bar' will be fetched from the environment variable |
|
22
|
|
|
* MYAPP_FOO_BAR. |
|
23
|
|
|
*/ |
|
24
|
|
|
public function __construct($prefix) |
|
25
|
|
|
{ |
|
26
|
|
|
// Ensure that the prefix is always uppercase, and always |
|
27
|
|
|
// ends with a '_', regardless of the form the caller provided. |
|
28
|
|
|
$this->prefix = strtoupper(rtrim($prefix, '_')) . '_'; |
|
29
|
|
|
} |
|
30
|
|
|
|
|
31
|
|
|
/** |
|
32
|
|
|
* @inheritdoc |
|
33
|
|
|
*/ |
|
34
|
|
|
public function has($key) |
|
35
|
|
|
{ |
|
36
|
|
|
return $this->get($key) !== null; |
|
37
|
|
|
} |
|
38
|
|
|
|
|
39
|
|
|
/** |
|
40
|
|
|
* @inheritdoc |
|
41
|
|
|
*/ |
|
42
|
|
|
public function get($key, $defaultFallback = null) |
|
43
|
|
|
{ |
|
44
|
|
|
$envKey = strtoupper(strtr($key, '.-', '__')); |
|
45
|
|
|
return getenv($envKey) ?: $defaultFallback; |
|
46
|
|
|
} |
|
47
|
|
|
|
|
48
|
|
|
/** |
|
49
|
|
|
* @inheritdoc |
|
50
|
|
|
*/ |
|
51
|
|
|
public function set($key, $value) |
|
52
|
|
|
{ |
|
53
|
|
|
throw new \Exception('Cannot call "set" on environmental configuration.'); |
|
54
|
|
|
} |
|
55
|
|
|
|
|
56
|
|
|
/** |
|
57
|
|
|
* @inheritdoc |
|
58
|
|
|
*/ |
|
59
|
|
|
public function import($data) |
|
60
|
|
|
{ |
|
61
|
|
|
// no-op |
|
62
|
|
|
} |
|
63
|
|
|
|
|
64
|
|
|
/** |
|
65
|
|
|
* @inheritdoc |
|
66
|
|
|
*/ |
|
67
|
|
|
public function export() |
|
68
|
|
|
{ |
|
69
|
|
|
return []; |
|
70
|
|
|
} |
|
71
|
|
|
|
|
72
|
|
|
/** |
|
73
|
|
|
* @inheritdoc |
|
74
|
|
|
*/ |
|
75
|
|
|
public function hasDefault($key) |
|
76
|
|
|
{ |
|
77
|
|
|
return false; |
|
78
|
|
|
} |
|
79
|
|
|
|
|
80
|
|
|
/** |
|
81
|
|
|
* @inheritdoc |
|
82
|
|
|
*/ |
|
83
|
|
|
public function getDefault($key, $defaultFallback = null) |
|
84
|
|
|
{ |
|
85
|
|
|
return $defaultFallback; |
|
86
|
|
|
} |
|
87
|
|
|
|
|
88
|
|
|
/** |
|
89
|
|
|
* @inheritdoc |
|
90
|
|
|
*/ |
|
91
|
|
|
public function setDefault($key, $value) |
|
92
|
|
|
{ |
|
93
|
|
|
throw new \Exception('Cannot call "setDefault" on environmental configuration.'); |
|
94
|
|
|
} |
|
95
|
|
|
} |
|
96
|
|
|
|
consolidation /
config
