Crustagen v1.0.0 🚀 (26.05.2023)

What’s changed:

1. Command line interface (CLI) for the generator:

• The -s argument is a path to the specification file
• The -o argument is the output directory, where the generated project will be initialized
• The -p argument is the project name, this will overwrite the project name from the spec
• Default arguments (and spec) are provided, so that no arguments must be explicitly provided
• The Clap library was utilized for the CLI

2. Parser for the AsyncAPI Specification, in either json or yaml format

• The complete specification is parsed into an internal AsyncAPI struct representation
• All schemas are parsed into a rust struct, along with Serde traits
• Support for nested objects
• Support for references (within the same spec file)

3. Generator for basic Pub/Sub functionality

• main.rs template: A Tokio runtime which listens to NATS pub/sub messages, and executes a handler function, and a simple producer which currently just sends messages on a timer (for testing)
• handler.rs template: async handler functions for each channel, and the parsed message structs (these will be moved to a separate file later)
• A rust project is automatically created with cargo, and needed dependencies will be imported
• The user only needs to execute cargo run in the generated directory