Get ready for composer 2

.gitignore

-vendor
-composer.lock
+/vendor/
+/.env
+/composer.lock

Utils.php

@@ -4,6 +4,7 @@ namespace LakeDrops\Component\Composer;
 
 use Composer\Composer;
 use Composer\Json\JsonFile;
+use Exception;
 
 /**
  * Manages composer.json files.
@@ -94,7 +95,7 @@ final class Utils {
     try {
       $jsonFile->write($this->content);
     }
-    catch (\Exception $ex) {
+    catch (Exception $ex) {
       // Let's ignore this, if composer.json is read-only there is a general problem.
     }
     return $this;
@@ -209,7 +210,7 @@ final class Utils {
       }
     }
 
-    if (\in_array($pattern, self::$ignoredGitPatterns, TRUE)) {
+    if (in_array($pattern, self::$ignoredGitPatterns, TRUE)) {
       return;
     }
 

composer.json

@@ -28,8 +28,8 @@
         "ext-json": "*"
     },
     "require-dev": {
-        "composer/composer": "^1.5.0",
-        "phpunit/phpunit": "^4.8.0"
+        "composer/composer": "^1||^2",
+        "phpunit/phpunit": "^8.4"
     },
     "minimum-stability": "dev",
     "prefer-stable": true,