update Piwik to version 2.16 (fixes #91)

www/analytics/core/UpdateCheck/ReleaseChannel.php

@@ -0,0 +1,73 @@
+<?php
+/**
+ * Piwik - free/libre analytics platform
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ */
+namespace Piwik\UpdateCheck;
+
+/**
+ * Base class to define a custom release channel. Plugins can add their own custom release channels by extending this
+ * class in a `plugin/$plugin/ReleaseChannel` folder. Custom release channels can be useful for example to provide
+ * nightly builds, to manage updates for clients via a central server, to package a special Piwik version for clients
+ * with custom plugins etc.
+ *
+ * This is not a public API and it may change without any anouncement.
+ *
+ * @package Piwik\UpdateCheck
+ */
+abstract class ReleaseChannel
+{
+    /**
+     * Get the ID for this release channel. This string will be eg saved in the config to identify the chosen release
+     * channel
+     * @return string
+     */
+    abstract public function getId();
+
+    /**
+     * Get a human readable name for this release channel, will be visible in the UI. Should be already translated.
+     * @return string
+     */
+    abstract public function getName();
+
+    /**
+     * Get the latest available version number for this release channel. Eg '2.15.0-b4' or '2.15.0'. Should be
+     * a semantic version number in format MAJOR.MINOR.PATCH (http://semver.org/). Returning an empty string in case
+     * one cannot connect to the remote server can be acceptable.
+     * @return string
+     */
+    abstract public function getUrlToCheckForLatestAvailableVersion();
+
+    /**
+     * Get the URL to download a specific Piwik archive for the given version number. The returned URL should not
+     * include a URI scheme, meaning it should start with '://...'.
+     *
+     * @param string $version
+     * @return string
+     */
+    abstract public function getDownloadUrlWithoutScheme($version);
+
+    /**
+     * Get the description for this release channel. Will be shown directly next to the name of the release in the
+     * Admin UI. For example 'Recommended' or 'Long Term Support version'.
+     * @return string
+     */
+    public function getDescription()
+    {
+        return '';
+    }
+
+    /**
+     * Get the order for this release channel. The lower the number the more important this release channel is. The
+     * release channel having the lowest order will be shown first and will be used as default release channel in case
+     * no valid release channel is defined.
+     * @return int
+     */
+    public function getOrder()
+    {
+        return 99;
+    }
+}