From a0e63cd66a05ff721f92f5175a22c58f018c24cb Mon Sep 17 00:00:00 2001
From: Greg Anderson <greg.1.anderson@greenknowe.org>
Date: Wed, 30 Sep 2020 12:41:08 -0700
Subject: [PATCH] Composer 2 support.

---
 composer.json                              |  6 +++---
 src/QuicksilverComposerInstallerPlugin.php | 15 +++++++++++++--
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/composer.json b/composer.json
index 2ff3311..88dd2ae 100644
--- a/composer.json
+++ b/composer.json
@@ -13,10 +13,10 @@
     "class": "rvtraveller\\QuicksilverComposerInstaller\\QuicksilverComposerInstallerPlugin"
   },
   "require": {
-    "composer-plugin-api": "~1.0",
-    "composer/installers": "~1.0"
+    "composer-plugin-api": "^1.0 || ^2.0",
+    "composer/installers": "^1.9"
   },
   "require-dev": {
-    "composer/composer": "~1.0@dev"
+    "composer/composer": "1.0.* || 2.0.*@dev"
   }
 }
diff --git a/src/QuicksilverComposerInstallerPlugin.php b/src/QuicksilverComposerInstallerPlugin.php
index 0e8e27e..556c2b8 100644
--- a/src/QuicksilverComposerInstallerPlugin.php
+++ b/src/QuicksilverComposerInstallerPlugin.php
@@ -8,13 +8,24 @@
 
 class QuicksilverComposerInstallerPlugin implements PluginInterface
 {
+  private $installer;
+
   public function activate(Composer $composer, IOInterface $io)
   {
     // Strange autoloading problem on CircleCI
     if (!class_exists(QuickSilverComposerInstaller::class)) {
       include_once __DIR__ . '/QuicksilverComposerInstaller.php';
     }
-    $installer = new QuickSilverComposerInstaller($io, $composer);
-    $composer->getInstallationManager()->addInstaller($installer);
+    $this->installer = new QuickSilverComposerInstaller($io, $composer);
+    $composer->getInstallationManager()->addInstaller($this->installer);
+  }
+
+  public function deactivate(Composer $composer, IOInterface $io)
+  {
+    $composer->getInstallationManager()->removeInstaller($this->installer);
+  }
+
+  public function uninstall(Composer $composer, IOInterface $io)
+  {
   }
 }