Version 1
[yaffs-website] / vendor / webflo / drupal-finder / src / DrupalFinder.php
diff --git a/vendor/webflo/drupal-finder/src/DrupalFinder.php b/vendor/webflo/drupal-finder/src/DrupalFinder.php
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+<?php
+
+/**
+ * @file
+ * Contains \DrupalFinder\DrupalFinder.
+ */
+
+namespace DrupalFinder;
+
+class DrupalFinder
+{
+    /**
+     * Drupal web public directory.
+     *
+     * @var string
+     */
+    private $drupalRoot;
+
+    /**
+     * Drupal package composer directory.
+     *
+     * @var bool
+     */
+    private $composerRoot;
+
+    public function locateRoot($start_path)
+    {
+        $this->drupalRoot = false;
+        $this->composerRoot = false;
+
+        foreach (array(true, false) as $follow_symlinks) {
+            $path = $start_path;
+            if ($follow_symlinks && is_link($path)) {
+                $path = realpath($path);
+            }
+            // Check the start path.
+            if ($this->isValidRoot($path)) {
+                return true;
+            } else {
+                // Move up dir by dir and check each.
+                while ($path = $this->shiftPathUp($path)) {
+                    if ($follow_symlinks && is_link($path)) {
+                        $path = realpath($path);
+                    }
+                    if ($this->isValidRoot($path)) {
+                        return true;
+                    }
+                }
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Returns parent directory.
+     *
+     * @param string
+     *   Path to start from
+     *
+     * @return string|false
+     *   Parent path of given path or false when $path is filesystem root
+     */
+    private function shiftPathUp($path)
+    {
+        $parent = dirname($path);
+
+        return in_array($parent, ['.', $path]) ? false : $parent;
+    }
+
+    /**
+     * @param $path
+     *
+     * @return bool
+     */
+    protected function isValidRoot($path)
+    {
+        if (!empty($path) && is_dir($path) && file_exists($path . '/autoload.php') && file_exists($path . '/composer.json')) {
+            // Additional check for the presence of core/composer.json to
+            // grant it is not a Drupal 7 site with a base folder named "core".
+            $candidate = 'core/includes/common.inc';
+            if (file_exists($path . '/' . $candidate) && file_exists($path . '/core/core.services.yml')) {
+                if (file_exists($path . '/core/misc/drupal.js') || file_exists($path . '/core/assets/js/drupal.js')) {
+                    $this->composerRoot = $path;
+                    $this->drupalRoot = $path;
+                }
+            }
+        }
+        if (!empty($path) && is_dir($path) && file_exists($path . '/composer.json')) {
+            $json = json_decode(
+                file_get_contents($path . '/composer.json'),
+                true
+            );
+            if (is_array($json)) {
+                if (isset($json['extra']['installer-paths']) && is_array($json['extra']['installer-paths'])) {
+                    foreach ($json['extra']['installer-paths'] as $install_path => $items) {
+                        if (in_array('type:drupal-core', $items) || in_array('drupal/core', $items)) {
+                            $this->composerRoot = $path;
+                            $this->drupalRoot = $path . '/' . substr(
+                                $install_path,
+                                0,
+                                -5
+                            );
+                        }
+                    }
+                }
+            }
+        }
+
+        return $this->drupalRoot && $this->composerRoot;
+    }
+
+    /**
+     * @return string
+     */
+    public function getDrupalRoot()
+    {
+        return $this->drupalRoot;
+    }
+
+    /**
+     * @return string
+     */
+    public function getComposerRoot()
+    {
+        return $this->composerRoot;
+    }
+}