Issue #3085354 by greg.1.anderson, mbaynton, hussainweb: Better default...

Issue #3085354 by greg.1.anderson, mbaynton, hussainweb: Better default behavior for scaffold-created .gitignore files

composer/Plugin/Scaffold/ManageGitIgnore.php

@@ -91,9 +91,8 @@ protected function managementOfGitIgnoreEnabled(ScaffoldOptions $options) {
     }
 
     // If the composer.json did not specify whether or not .gitignore files
-    // should be managed, then manage them if the vendor directory is not
-    // committed.
-    return !Git::checkTracked($this->io, 'vendor', $this->dir);
+    // should be managed, then manage them if the vendor directory is ignored.
+    return Git::checkIgnore($this->io, 'vendor', $this->dir);
   }
 
   /**

composer/Plugin/Scaffold/README.md

@@ -302,7 +302,7 @@ manage `.gitignore` files for files written during the scaffold operation.
 - true: `.gitignore` files will be updated when scaffold files are written.
 - false: `.gitignore` files will never be modified.
 - Not set: `.gitignore` files will be updated if the target directory is a local
-working copy of a git repository, and the `vendor` directory is not committed
+working copy of a git repository, and the `vendor` directory is ignored
 in that repository.
 
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