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sub execute {
  my ( $self, $opt, $args ) = @_;

  # Do whatever you want in this area, before we generate

  # For example, let's make sure the application
  # matches a certain naming convention

  my $app_name = $opt->{'application'};
  $app_name =~ /^My::Company::App::/
    or $self->usage_error('App must be prefixed by "My::Company::App");

  # Maybe check we are only scaffolding in a particular directory
  cwd() eq '/opt/my_company/webapps/'
      or $self->usage_error('Only create apps in our webapps directory');

  # At this point, we can run the original scaffolding
  $self->SUPER::execute( $opt, $args );

  # Now we finished generating, but we can contineu customizing what we have
}

1;</pre>

<p>Writing your own generation on top of the existing generation allows
you to manage the input (including additional validation) and the
output, giving you full control over the scaffolding process.</p>
<p>Some examples on which customizations you might want to perform:</p>
<ul>
<li><a name="item_Add_additional_default_imported_classes"></a><b>Add additional default imported classes</b>
</li>
<li><a name="item_Change_the_output_directory_name"></a><b>Change the output directory name</b>
</li>
<li><a name="item_Update_a_database_that_we_have_a_new_application"></a><b>Update a database that we have a new application</b>
</li>
<li><a name="item_Update_your_team_with_an_email_or_IRC_Slack_message"></a><b>Update your team with an email or IRC/Slack message</b>
</li>
<li><a name="item_Remove_files_that_are_not_applicable_for_your_setup_and_add_new_ones"></a><b>Remove files that are not applicable for your setup and add new ones</b>
</li>
<li><a name="item_Write_helpful_output_for_the_developer_who_scaffolded_the_app"></a><b>Write helpful output for the developer who scaffolded the app</b>
</li>
</ul>
<h2><a name="conclusion"></a>Conclusion</h2>

<p>I hope you find these techniques useful to introduce customization for
your home-grown Dancer2 application setup. I know I do. :)</p>
<h2><a name="author"></a>Author</h2>

<p>This article has been written by Sawyer X for the Perl
Dancer Advent Calendar 2018.</p>
<h2><a name="copyright"></a>Copyright</h2>

<p>No copyright retained. Enjoy.</p>
<p>2018 // Sawyer X <code>&lt;xsawyerx@cpan.org&gt;</code></p>
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