1: <?php
2:
3: 4: 5: 6: 7: 8: 9: 10:
11:
12: namespace Nette\Config;
13:
14: use Nette,
15: Nette\Utils\Validators;
16:
17:
18:
19: 20: 21: 22: 23: 24: 25:
26: class Loader extends Nette\Object
27: {
28:
29: const INCLUDES_KEY = 'includes';
30:
31: private $adapters = array(
32: 'php' => 'Nette\Config\Adapters\PhpAdapter',
33: 'ini' => 'Nette\Config\Adapters\IniAdapter',
34: 'neon' => 'Nette\Config\Adapters\NeonAdapter',
35: );
36:
37: private $dependencies = array();
38:
39:
40:
41: 42: 43: 44: 45: 46:
47: public function load($file, $section = NULL)
48: {
49: if (!is_file($file) || !is_readable($file)) {
50: throw new Nette\FileNotFoundException("File '$file' is missing or is not readable.");
51: }
52: $this->dependencies[] = $file = realpath($file);
53: $data = $this->getAdapter($file)->load($file);
54:
55: if ($section) {
56: if (isset($data[self::INCLUDES_KEY])) {
57: throw new Nette\InvalidStateException("Section 'includes' must be placed under some top section in file '$file'.");
58: }
59: $data = $this->getSection($data, $section, $file);
60: }
61:
62:
63: $merged = array();
64: if (isset($data[self::INCLUDES_KEY])) {
65: Validators::assert($data[self::INCLUDES_KEY], 'list', "section 'includes' in file '$file'");
66: foreach ($data[self::INCLUDES_KEY] as $include) {
67: $merged = Helpers::merge($this->load(dirname($file) . '/' . $include), $merged);
68: }
69: }
70: unset($data[self::INCLUDES_KEY]);
71:
72: return Helpers::merge($data, $merged);
73: }
74:
75:
76:
77: 78: 79: 80: 81: 82:
83: public function save($data, $file)
84: {
85: if (file_put_contents($file, $this->getAdapter($file)->dump($data)) === FALSE) {
86: throw new Nette\IOException("Cannot write file '$file'.");
87: }
88: }
89:
90:
91:
92: 93: 94: 95:
96: public function getDependencies()
97: {
98: return array_unique($this->dependencies);
99: }
100:
101:
102:
103: 104: 105: 106: 107: 108:
109: public function addAdapter($extension, $adapter)
110: {
111: $this->adapters[strtolower($extension)] = $adapter;
112: return $this;
113: }
114:
115:
116:
117:
118: private function getAdapter($file)
119: {
120: $extension = strtolower(pathinfo($file, PATHINFO_EXTENSION));
121: if (!isset($this->adapters[$extension])) {
122: throw new Nette\InvalidArgumentException("Unknown file extension '$file'.");
123: }
124: return is_object($this->adapters[$extension]) ? $this->adapters[$extension] : new $this->adapters[$extension];
125: }
126:
127:
128:
129: private function getSection(array $data, $key, $file)
130: {
131: Validators::assertField($data, $key, 'array|null', "section '%' in file '$file'");
132: $item = $data[$key];
133: if ($parent = Helpers::takeParent($item)) {
134: $item = Helpers::merge($item, $this->getSection($data, $parent, $file));
135: }
136: return $item;
137: }
138:
139: }
140: