Initial commit

Author: Giovanni Lovato

README.md

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+{
+	"name" : "bread/configuration",
+	"description" : "Bread configuration library",
+	"type" : "library",
+	"authors" : [{
+			"name" : "Giovanni Lovato",
+			"email" : "heruan@aldu.net"
+		}
+	],
+	"keywords" : [
+		"bread",
+		"configuration"
+	],
+	"homepage" : "https://github.com/breadphp/configuration",
+	"license" : [
+		"CC-BY-3.0"
+	],
+	"require" : {
+		"bread/caching" : "~1.0",
+		"php" : ">=5.4"
+	},
+	"autoload" : {
+		"psr-0" : {
+			"Bread\\Configuration" : "src"
+		}
+	}
+}

composer.json

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+<?php
+/**
+ * Bread PHP Framework (http://github.com/saiv/Bread)
+ * Copyright 2010-2012, SAIV Development Team <development@saiv.it>
+ *
+ * Licensed under a Creative Commons Attribution 3.0 Unported License.
+ * Redistributions of files must retain the above copyright notice.
+ *
+ * @copyright  Copyright 2010-2012, SAIV Development Team <development@saiv.it>
+ * @link       http://github.com/saiv/Bread Bread PHP Framework
+ * @package    Bread
+ * @since      Bread PHP Framework
+ * @license    http://creativecommons.org/licenses/by/3.0/
+ */
+namespace Bread\Configuration\Interfaces;
+
+/**
+ * The interface for configuration parsers.
+ *
+ * @author Giovanni Lovato <heruan@aldu.net>
+ */
+interface Parser
+{
+
+    /**
+     * Parses a configuration file and returns an array with configuration entries.
+     *
+     * @param string $filename
+     *            The file to parse
+     * @return array The configuration array
+     */
+    public static function parse($filename);
+}

src/Bread/Configuration/Interfaces/Parser.php

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+<?php
+/**
+ * Bread PHP Framework (http://github.com/saiv/Bread)
+ * Copyright 2010-2012, SAIV Development Team <development@saiv.it>
+ *
+ * Licensed under a Creative Commons Attribution 3.0 Unported License.
+ * Redistributions of files must retain the above copyright notice.
+ *
+ * @copyright  Copyright 2010-2012, SAIV Development Team <development@saiv.it>
+ * @link       http://github.com/saiv/Bread Bread PHP Framework
+ * @package    Bread
+ * @since      Bread PHP Framework
+ * @license    http://creativecommons.org/licenses/by/3.0/
+ */
+namespace Bread\Configuration;
+
+use Bread\Caching\Cache;
+use Exception;
+
+class Manager
+{
+
+    private static $defaults = array();
+
+    private static $configurations = array();
+
+    public static function initialize($url)
+    {
+        $directory = parse_url($url, PHP_URL_PATH);
+        return Cache::instance()->fetch(__METHOD__)->then(null, function ($key) use ($directory) {
+            $configurations = array();
+            if (!is_dir($directory)) {
+                throw new Exception("Configuration directory $directory is not valid.");
+            }
+            foreach ((array) scandir($directory) as $path) {
+                $extension = pathinfo($path, PATHINFO_EXTENSION);
+                $path = $directory . DIRECTORY_SEPARATOR . $path;
+                if ($Parser = static::get(__CLASS__, "parsers.$extension")) {
+                    $configurations = array_replace_recursive($configurations, $Parser::parse($path));
+                }
+            }
+            Cache::instance()->store($key, $configurations);
+            return $configurations;
+        })->then(function ($configurations) {
+            static::$configurations = array_merge($configurations, static::$configurations);
+        });
+    }
+
+    public static function defaults($class, $configuration = array())
+    {
+        if ($parent = get_parent_class($class)) {
+            $configuration = array_replace_recursive(static::get($parent), $configuration);
+        }
+        foreach (class_uses($class) as $trait) {
+            $configuration = array_replace_recursive(static::get($trait), $configuration);
+        }
+        if (isset(static::$configurations[$class])) {
+            $configuration = array_replace_recursive($configuration, static::$configurations[$class]);
+        }
+        static::$configurations[$class] = $configuration;
+    }
+
+    public static function configure($class, $configuration = array())
+    {
+        if (!isset(static::$configurations[$class])) {
+            static::$configurations[$class] = array();
+        }
+        static::$configurations[$class] = array_replace_recursive(static::$configurations[$class], $configuration);
+    }
+
+    public static function get($class, $key = null)
+    {
+        static::defaults($class);
+        if (!isset(static::$configurations[$class])) {
+            return null;
+        }
+        $configuration = static::$configurations[$class];
+        if (null === $key) {
+            return $configuration;
+        }
+        foreach (explode('.', $key) as $key) {
+            if (!isset($configuration[$key])) {
+                return null;
+            }
+            $configuration = $configuration[$key];
+        }
+        return $configuration;
+    }
+
+    public static function set($class, $key, $value)
+    {
+        if (!isset(static::$configurations[$class])) {
+            static::$configurations[$class] = array();
+        }
+        $configuration = static::$configurations[$class];
+        static::$configurations[$class] = array_replace_recursive($configuration, Parsers\Initialization::parse(array(
+            $key => $value
+        ), false));
+    }
+}
+
+Manager::defaults('Bread\Configuration\Manager', array(
+    'parsers' => array(
+        'ini' => 'Bread\Configuration\Parsers\Initialization',
+        'php' => 'Bread\Configuration\Parsers\PHP'
+    )
+));