1 files changed, 65 insertions, 0 deletions
diff --git a/library/Icinga/Application/Version.php b/library/Icinga/Application/Version.php
new file mode 100644
index 0000000..be804f1
--- /dev/null
+++ b/library/Icinga/Application/Version.php
@@ -0,0 +1,65 @@
+<?php
+/* Icinga Web 2 | (c) 2015 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Application;
+
+/**
+ * Retrieve the version of Icinga Web 2
+ */
+class Version
+{
+    const VERSION = '2.12.1';
+
+    /**
+     * Get the version of this instance of Icinga Web 2
+     *
+     * @return array
+     */
+    public static function get()
+    {
+        $version = array('appVersion' => self::VERSION);
+        preg_match('/2.(\d+)\./', self::VERSION, $matches);
+        $version['docVersion'] = isset($matches[1]) ? '2.' . $matches[1] : null;
+
+        if (false !== ($appVersion = @file_get_contents(Icinga::app()->getApplicationDir('VERSION')))) {
+            $matches = array();
+            if (@preg_match('/^(?P<gitCommitID>\w+) (?P<gitCommitDate>\S+)/', $appVersion, $matches)) {
+                return array_merge($version, $matches);
+            }
+        }
+
+        $gitCommitId = static::getGitHead(Icinga::app()->getBaseDir());
+        if ($gitCommitId !== false) {
+            $version['gitCommitID'] = $gitCommitId;
+        }
+
+        return $version;
+    }
+
+    /**
+     * Get the current commit of the Git repository in the given path
+     *
+     * @param   string  $repo       Path to the Git repository
+     * @param   bool    $bare       Whether the Git repository is bare
+     *
+     * @return  string|bool         False if not available
+     */
+    public static function getGitHead($repo, $bare = false)
+    {
+        if (! $bare) {
+            $repo .= '/.git';
+        }
+
+        $head = @file_get_contents($repo . '/HEAD');
+
+        if ($head !== false) {
+            if (preg_match('/^ref: (.+)/', $head, $matches)) {
+                return @file_get_contents($repo . '/' . $matches[1]);
+            }
+
+            return $head;
+        }
+
+        return false;
+    }
+}