module Rails::Command::CredentialsCommand::Diffing

def enroll_project_in_credentials_diffing
  if enrolled_in_credentials_diffing?
    say "Project is already enrolled in credentials file diffing."
  else
    gitattributes.write(GITATTRIBUTES_ENTRY, mode: "a")
    say "Enrolled project in credentials file diffing!"
    say "Rails ensures the rails_credentials diff driver is set when running `credentials:edit`. See `credentials:help` for more."
  end
end