dp-gen: Design Pattern Code Scaffolder

A simple CLI tool to generate boilerplate code for GoF Design Patterns.

Installation

Local Usage

1. Clone this repository.
2. Install dependencies:

   pip install -r requirements.txt

Global Usage (Recommended)

To run dp-gen from anywhere:

1. Navigate to the project directory.
2. Install in editable mode (add --break-system-packages if on Linux and not in a venv):

   pip install -e . --break-system-packages

Now you can just type dp-gen in any terminal!

Usage

Generate a design pattern boilerplate:

dp-gen make strategy --lang csharp

Generate a pattern with a custom name:

dp-gen make strategy Payment --lang csharp

Output directory:

python3 dp_gen.py make factory MyFactory --lang csharp --out ./output

Supported Patterns

• strategy (C#, Python)
• factory (C#)
• observer (C#)
• singleton (C#)
• decorator (C#)

Adding More Templates

Add your Jinja2 templates to templates/<language>/<pattern>/. Use {{ name }} for the custom name provided by the user.