diff --git a/scripts/src/ConverterCommand.php b/scripts/src/ConverterCommand.php
index d4c7f95d0fb0d19c6e35c8722398720ed9bea364..de11db8a635564e914c6559f7e025e558900bfd8 100644
--- a/scripts/src/ConverterCommand.php
+++ b/scripts/src/ConverterCommand.php
@@ -29,9 +29,9 @@ class ConverterCommand extends Command {
 
   private string $core_dir;
 
-  private string $core_branch;
+  private string|null $core_branch;
 
-  private string $contrib_branch;
+  private string|null $contrib_branch;
 
   private bool $package_manager_only;
 
@@ -43,6 +43,20 @@ class ConverterCommand extends Command {
 
   private bool $skipCoreChecks;
 
+  /**
+   * {@inheritdoc}
+   */
+  protected function configure() {
+    $this->addArgument('core_dir', InputArgument::REQUIRED, 'The path to the root of Drupal Core');
+    $this->addArgument('core_branch', InputArgument::OPTIONAL, 'The core merge request branch');
+    $this->addArgument('contrib_branch', InputArgument::OPTIONAL, 'The contrib branch to switch to', '3.0.x');
+    $this->addOption('package_manager_only', NULL, InputOption::VALUE_NONE, 'Only convert package manager');
+    $this->addOption('core_target_branch', NULL, InputOption::VALUE_REQUIRED, 'The core target branch', '11.x');
+    $this->addOption('skip_core_checks', NULL, InputOption::VALUE_NONE, 'Skip core checks');
+    $this->addOption('no_commit', NULL, InputOption::VALUE_NONE, 'Do not make commit');
+    $this->addOption('gitlabci', NULL, InputOption::VALUE_NONE, 'Run in Gitlab CI');
+  }
+
   /**
    * {@inheritdoc}
    */
@@ -55,28 +69,46 @@ class ConverterCommand extends Command {
     $this->contrib_dir = realpath(__DIR__ . '/../..');
     $this->skipCoreChecks = $input->getOption('skip_core_checks');
     $this->no_commit = $input->getOption('no_commit');
+    $this->gitlabci = $input->getOption('gitlabci');
+    if (!$this->gitlabci) {
+      if (empty($this->core_branch)) {
+        throw new \Exception("core_branch is required if not on gitlabci");
+      }
+    }
+    else {
+      if (!empty($this->core_branch)) {
+        throw new \Exception("branches are not allowed on gitlabci");
+      }
+    }
     // Esnure core_dir is a directory.
     if (!is_dir($this->core_dir)) {
       throw new \Exception("$this->core_dir is not a directory.");
     }
-    // Switch to  core_target_branch to ensure it is clean.
-    chdir($this->core_dir);
-    static::switchToBranch($this->core_target_branch);
-    // Git pull to ensure we are up to date.
-    static::executeCommand('git pull');
-    // change back the previous directory.
-    chdir($this->contrib_dir);
-    // Ensure we are on the correct branches.
-    static::switchToBranches($this->core_dir, $this->core_branch, $this->contrib_branch);
-    // Switch to the core directory and checkout the files and folders that this
-    // conversion script will automatically update based on our composer.json
-    // file and our dictionary.txt file.
+
     chdir($this->core_dir);
-    static::executeCommand("git checkout {$this->core_target_branch} -- composer.json");
-    static::executeCommand("git checkout {$this->core_target_branch} -- composer.lock");
-    static::executeCommand("git checkout {$this->core_target_branch} -- composer");
-    static::executeCommand("git checkout {$this->core_target_branch} -- core/composer.json");
-    static::executeCommand("git checkout {$this->core_target_branch} -- core/misc/cspell/dictionary.txt");
+    if ($this->gitlabci) {
+      $this->no_commit = TRUE;
+      $this->skipCoreChecks = TRUE;
+    }
+    else {
+      // Ensure the core directory is clean.
+      static::switchToBranch($this->core_target_branch);
+      // Git pull to ensure we are up to date.
+      static::executeCommand('git pull');
+      // change back the previous directory.
+      chdir($this->contrib_dir);
+      // Ensure we are on the correct branches.
+      static::switchToBranches($this->core_dir, $this->core_branch, $this->contrib_branch);
+      // Switch to the core directory and checkout the files and folders that this
+      // conversion script will automatically update based on our composer.json
+      // file and our dictionary.txt file.
+      chdir($this->core_dir);
+      static::executeCommand("git checkout {$this->core_target_branch} -- composer.json");
+      static::executeCommand("git checkout {$this->core_target_branch} -- composer.lock");
+      static::executeCommand("git checkout {$this->core_target_branch} -- composer");
+      static::executeCommand("git checkout {$this->core_target_branch} -- core/composer.json");
+      static::executeCommand("git checkout {$this->core_target_branch} -- core/misc/cspell/dictionary.txt");
+    }
 
     // Switch to the core directory and require all of the packages there are in
     // this module's composer.json require section.
@@ -121,19 +153,6 @@ class ConverterCommand extends Command {
     }
   }
 
-  /**
-   * {@inheritdoc}
-   */
-  protected function configure() {
-    $this->addArgument('core_dir', InputArgument::REQUIRED, 'The path to the root of Drupal Core');
-    $this->addArgument('core_branch', InputArgument::REQUIRED, 'The core merge request branch');
-    $this->addArgument('contrib_branch', InputArgument::OPTIONAL, 'The contrib branch to switch to', '3.0.x');
-    $this->addOption('package_manager_only', NULL, InputOption::VALUE_NONE, 'Only convert package manager');
-    $this->addOption('core_target_branch', NULL, InputOption::VALUE_REQUIRED, 'The core target branch', '11.x');
-    $this->addOption('skip_core_checks', NULL, InputOption::VALUE_NONE, 'Skip core checks');
-    $this->addOption('no_commit', NULL, InputOption::VALUE_NONE, 'Do not make commit');
-  }
-
   /**
    * Prints message.
    *
@@ -472,7 +491,7 @@ class ConverterCommand extends Command {
     chdir($core_dir);
     // Make sure ALL files are committed, including the core/modules/package_manager/tests/fixtures/fake_site/core directory!
     shell_exec('git add -f core/modules/package_manager');
-    shell_exec('git add core');
+    shell_exec('git add .');
     shell_exec("git commit -m 'Contrib: $message - https://git.drupalcode.org/project/automatic_updates/-/commit/$hash'");
   }