fix: introduce plugin-custom to mount files without breaking permissi…

…ons, fixes shyim#1

README.md

@@ -52,7 +52,7 @@ If a plugin *requires* parameters to work correctly instead of adding the plugin
 ```console
 $ docker run --link some_database:db -p 8080:8080 -e ADMINER_PLUGINS='login-servers' ghcr.io/shyim/adminerevo:latest
 Unable to load plugin file "login-servers", because it has required parameters: servers
-Create a file "/var/www/html/plugins-enabled/login-servers.php" with the following contents to load the plugin:
+Create a file "/var/www/html/plugins-custom/login-servers.php" with the following contents to load the plugin:
 
 <?php
 require_once('plugins/login-servers.php');
@@ -67,7 +67,7 @@ return new AdminerLoginServers(
 );
 ```
 
-To load a custom plugin you can add PHP scripts that return the instance of the plugin object to `/var/www/html/plugins-enabled/`.
+To load a custom plugin you can add PHP scripts that return the instance of the plugin object to `/var/www/html/plugins-custom/`.
 
 ### Choosing a design
 

rootfs/var/www/html/index.php

@@ -25,6 +25,12 @@ function _callParent($function, $args) {
 			$plugins[] = require($plugin);
 		}
 
+		if (is_dir('plugins-custom')) {
+			foreach (glob('plugins-custom/*.php') as $plugin) {
+				$plugins[] = require($plugin);
+			}
+		}
+
 		return new Adminer($plugins);
 	}
 }

rootfs/var/www/html/plugin-loader.php

@@ -51,7 +51,7 @@
 	fwrite(STDERR, 'Unable to load plugin file "'.$name.'", because it has required parameters: '.implode(', ', array_map(function ($item) {
 		return $item->getName();
 	}, $requiredParameters))."\n".
-'Create a file /var/www/html/plugins-enabled/'.$name.'.php" with the following contents to load the plugin:'."\n\n".
+'Create a file /var/www/html/plugins-custom/'.$name.'.php" with the following contents to load the plugin:'."\n\n".
 '<?php
 require_once('.var_export($file, true).');