Add missing setup

Author: pVesian

setup.php

@@ -0,0 +1,72 @@
+<?php
+
+define('PLUGIN_GROUPCATEGORY_MIN_GLPI_VERSION', '9.2.1');
+define('PLUGIN_GROUPCATEGORY_NAMESPACE', 'groupcategory');
+
+/**
+ * Plugin description
+ *
+ * @return boolean
+ */
+function plugin_version_groupcategory()
+{
+    return [
+        'name' => 'GroupCategory',
+        'version' => '1.1',
+        'author' => 'Pierre de Vésian - <a href="http://www.probesys.com">Probesys</a>',
+        'homepage' => 'https://probesys.com/',
+        'license' => 'GPLv2+',
+        'minGlpiVersion' => PLUGIN_GROUPCATEGORY_MIN_GLPI_VERSION,
+    ];
+}
+
+/**
+ * Initialize plugin
+ *
+ * @return boolean
+ */
+function plugin_init_groupcategory()
+{
+    if (Session::getLoginUserID()) {
+        global $PLUGIN_HOOKS;
+
+        $PLUGIN_HOOKS['csrf_compliant'][PLUGIN_GROUPCATEGORY_NAMESPACE] = true;
+        $PLUGIN_HOOKS['post_show_item'][PLUGIN_GROUPCATEGORY_NAMESPACE] = 'plugin_groupcategory_post_show_item';
+        $PLUGIN_HOOKS['pre_item_update'][PLUGIN_GROUPCATEGORY_NAMESPACE] = [
+            'Group' => 'plugin_groupcategory_group_update',
+        ];
+    }
+}
+
+/**
+ * Check if plugin prerequisites are met
+ *
+ * @return boolean
+ */
+function plugin_groupcategory_check_prerequisites()
+{
+    $prerequisites_check_ok = false;
+
+    try {
+        if (version_compare(GLPI_VERSION, PLUGIN_GROUPCATEGORY_MIN_GLPI_VERSION, '<')) {
+            throw new Exception('This plugin requires GLPI >= ' . PLUGIN_GROUPCATEGORY_MIN_GLPI_VERSION);
+        }
+
+        $prerequisites_check_ok = true;
+    } catch (Exception $e) {
+        echo $e->getMessage();
+    }
+
+    return $prerequisites_check_ok;
+}
+
+/**
+ * Check if config is compatible with plugin
+ *
+ * @return boolean
+ */
+function plugin_groupcategory_check_config()
+{
+    // nothing to do
+    return true;
+}