EZP-23949: Refactored installers out of kernel

Added service tag ezplatform.installer, with 'type' key.
PlatformInstallerBundle contains 'clean' install by default.
'demo' and 'demo-clean' installers are in the demobundle itself.

eZ/Bundle/PlatformInstallerBundle/src/Command/InstallPlatformCommand.php

@@ -8,6 +8,7 @@
 namespace EzSystems\PlatformInstallerBundle\Command;
 
 use Doctrine\DBAL\Exception\ConnectionException;
+use EzSystems\PlatformInstallerBundle\Installer\Installer;
 use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface;
@@ -30,7 +31,8 @@ class InstallPlatformCommand extends ContainerAwareCommand
     protected function configure()
     {
         $this->setName( 'ezplatform:install' );
-        $this->addArgument( 'type', InputArgument::REQUIRED, "The type of install, one of: clean, demo-clean or demo" );
+
+        $this->addArgument( 'type', InputArgument::REQUIRED, "The type of install" );
     }
 
     protected function execute( InputInterface $input, OutputInterface $output )
@@ -40,19 +42,11 @@ protected function execute( InputInterface $input, OutputInterface $output )
         $this->checkParameters();
         $this->checkDatabase();
 
-        switch ( $type = $input->getArgument( 'type' ) )
+        $type = $input->getArgument( 'type' );
+        $installer = $this->getInstaller( $type );
+        if ( $installer === false )
         {
-            case 'clean':
-                $installer = $this->getContainer()->get( 'ezplatform.installer.clean_installer' );
-                break;
-            case 'demo':
-                $installer = $this->getContainer()->get( 'ezplatform.installer.demo_installer' );
-                break;
-            case 'demo-clean':
-                $installer = $this->getContainer()->get( 'ezplatform.installer.democlean_installer' );
-                break;
-            default:
-                $output->writeln( "Unknown install type '$type''" );
+                $output->writeln( "Unknown install type '$type'" );
                 exit( self::EXIT_UNKNOWN_INSTALL_TYPE );
         }
 
@@ -128,4 +122,28 @@ private function checkDatabase()
             exit( self::EXIT_GENERAL_DATABASE_ERROR );
         }
     }
+
+    /**
+     * @return array
+     */
+    private function getAvailableInstallers()
+    {
+        return array_keys( $this->getContainer()->getParameter( 'ezplatform.installers' ) );
+    }
+
+    /**
+     * @param $type
+     *
+     * @return \EzSystems\PlatformInstallerBundle\Installer\Installer
+     */
+    private function getInstaller( $type )
+    {
+        $installers = $this->getContainer()->getParameter( 'ezplatform.installers' );
+        if ( !isset( $installers[$type] ) )
+        {
+            return false;
+        }
+
+        return $this->getContainer()->get( $installers[$type] );
+    }
 }

eZ/Bundle/PlatformInstallerBundle/src/DependencyInjection/Compiler/InstallerTagPass.php

@@ -0,0 +1,42 @@
+<?php
+/**
+ * This file is part of the ezpublish-kernel package.
+ *
+ * @copyright Copyright (C) eZ Systems AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+
+namespace EzSystems\PlatformInstallerBundle\DependencyInjection\Compiler;
+
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Reference;
+
+/**
+ * Compiles services tagged as ezplatform.installer to %ezplatform.installers%
+ */
+class InstallerTagPass implements CompilerPassInterface
+{
+    public function process( ContainerBuilder $container )
+    {
+        $installers = [];
+
+        foreach ( $container->findTaggedServiceIds( 'ezplatform.installer' ) as $id => $tags )
+        {
+            foreach ( $tags as $tag )
+            {
+                if ( !isset( $tag['type'] ) )
+                    throw new \LogicException( "ezplatform.installer service tag needs a 'type' attribute to identify the installer. None given for $id." );
+
+                $installers[$tag['type']] = $id;
+            }
+        }
+
+        if ( count( $installers ) == 0 )
+        {
+            return;
+        }
+
+        $container->setParameter( 'ezplatform.installers', $installers );
+    }
+}

eZ/Bundle/PlatformInstallerBundle/src/EzSystemsPlatformInstallerBundle.php

@@ -7,9 +7,15 @@
  */
 namespace EzSystems\PlatformInstallerBundle;
 
+use EzSystems\PlatformInstallerBundle\DependencyInjection\Compiler\InstallerTagPass;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\HttpKernel\Bundle\Bundle;
 
 class EzSystemsPlatformInstallerBundle extends Bundle
 {
+    public function build( ContainerBuilder $container )
+    {
+        parent::build( $container );
+        $container->addCompilerPass( new InstallerTagPass() );
+    }
 }

eZ/Bundle/PlatformInstallerBundle/src/Resources/config/services.yml

@@ -1,23 +1,15 @@
 parameters:
     ezplatform.installer.db_based_installer.class: EzSystems\PlatformInstallerBundle\Installer\DbBasedInstaller
     ezplatform.installer.clean_installer.class: EzSystems\PlatformInstallerBundle\Installer\CleanInstaller
-    ezplatform.installer.democlean_installer.class: EzSystems\PlatformInstallerBundle\Installer\DemoCleanInstaller
-    ezplatform.installer.demo_installer.class: EzSystems\PlatformInstallerBundle\Installer\DemoInstaller
 
 services:
     ezplatform.installer.db_based_installer:
         abstract: true
         class:  %ezplatform.installer.db_based_installer.class%
         arguments: [@database_connection]
 
-    ezplatform.installer.democlean_installer:
-        class: %ezplatform.installer.democlean_installer.class%
-        parent: ezplatform.installer.db_based_installer
-
     ezplatform.installer.clean_installer:
         class: %ezplatform.installer.clean_installer.class%
         parent: ezplatform.installer.db_based_installer
-
-    ezplatform.installer.demo_installer:
-        class: %ezplatform.installer.demo_installer.class%
-        parent: ezplatform.installer.db_based_installer
+        tags:
+            - {name: ezplatform.installer, type: clean}