/
ConfigCache.php
116 lines (103 loc) · 3.1 KB
/
ConfigCache.php
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
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Config;
/**
* ConfigCache manages PHP cache files.
*
* When debug is enabled, it knows when to flush the cache
* thanks to an array of ResourceInterface instances.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class ConfigCache
{
protected $debug;
protected $file;
/**
* Constructor.
*
* @param string $file The absolute cache path
* @param Boolean $debug Whether debugging is enabled or not
*/
public function __construct($file, $debug)
{
$this->file = $file;
$this->debug = (Boolean) $debug;
}
/**
* Gets the cache file path.
*
* @return string The cache file path
*/
public function __toString()
{
return $this->file;
}
/**
* Checks if the cache is still fresh.
*
* This method always returns true is debug is on and the cache file exists.
*
* @return Boolean true if the cache is fresh, false otherwise
*/
public function isFresh()
{
if (!file_exists($this->file)) {
return false;
}
if (!$this->debug) {
return true;
}
$metadata = $this->file.'.meta';
if (!file_exists($metadata)) {
return false;
}
$time = filemtime($this->file);
$meta = unserialize(file_get_contents($metadata));
foreach ($meta as $resource) {
if (!$resource->isFresh($time)) {
return false;
}
}
return true;
}
/**
* Writes cache.
*
* @param string $content The content to write in the cache
* @param array $metadata An array of ResourceInterface instances
*
* @throws \RuntimeException When cache file can't be wrote
*/
public function write($content, array $metadata = null)
{
$dir = dirname($this->file);
if (!is_dir($dir)) {
if (false === @mkdir($dir, 0777, true)) {
throw new \RuntimeException(sprintf('Unable to create the %s directory', $dir));
}
} elseif (!is_writable($dir)) {
throw new \RuntimeException(sprintf('Unable to write in the %s directory', $dir));
}
$tmpFile = tempnam(dirname($this->file), basename($this->file));
if (false !== @file_put_contents($tmpFile, $content) && @rename($tmpFile, $this->file)) {
chmod($this->file, 0666);
} else {
throw new \RuntimeException(sprintf('Failed to write cache file "%s".', $this->file));
}
if (null !== $metadata && true === $this->debug) {
$file = $this->file.'.meta';
$tmpFile = tempnam(dirname($file), basename($file));
if (false !== @file_put_contents($tmpFile, serialize($metadata)) && @rename($tmpFile, $file)) {
chmod($file, 0666);
}
}
}
}