Set GitLab repositories to squash merge by default

The commit above has been deployed and will set this setting for new projects. Over the weekend a bulk update is running to update existing projects. Once that’s complete:

• Set up integrity checks to verify all projects have the setting
• Remove the lines of code referenced in the issue summary

Code used for the bulk update:

$project_api = versioncontrol_gitlab_get_client()->api('projects');
$result = (new EntityFieldQuery())->entityCondition('entity_type', 'node')
->entityCondition('bundle', project_project_node_types())
->execute();
foreach (array_keys($result['node']) as $nid) {
  $repository = versioncontrol_project_repository_load($nid);
  print $repository->name . PHP_EOL;
  $project_api->update($repository->gitlab_project_id, ['squash_option' => 'default_on']);
}

We needed to update every issue fork project too:

$project_api = versioncontrol_gitlab_get_client()->api('projects');
$result = (new EntityFieldQuery())->entityCondition('entity_type', 'drupalorg_issue_fork')->execute();
foreach (array_keys($result['drupalorg_issue_fork']) as $gitlab_project_id) {
  print '.';
  $project_api->update($gitlab_project_id, ['squash_option' => 'default_on']);
}