deno-runner

Embed Deno tasks natively into Node. Only available on Node 20+ and macOS arm64 for now (pending Github Actions support for cross-compilation).

This project was bootstrapped by create-neon.

Building deno-runner

Building deno-runner requires a supported version of Node and Rust.

To run the build, run:

$ npm run build

This command uses the @neon-rs/cli utility to assemble the binary Node addon from the output of cargo.

Exploring deno-runner

After building deno-runner, you can explore its exports at the Node console:

$ npm i
$ npm run build
$ node
> require('.').hello()
'hello node'

Available Scripts

In the project directory, you can run:

npm install

Installs the project, including running npm run build.

npm run build

Builds the Node addon (index.node) from source, generating a release build with cargo --release.

Additional cargo build arguments may be passed to npm run build and similar commands. For example, to enable a cargo feature:

npm run build -- --feature=beetle

npm run debug

Similar to npm run build but generates a debug build with cargo.

npm run cross

Similar to npm run build but uses cross-rs to cross-compile for another platform. Use the CARGO_BUILD_TARGET environment variable to select the build target.

npm test

Runs the unit tests by calling cargo test. You can learn more about adding tests to your Rust code from the Rust book.

Project Layout

The directory structure of this project is:

deno-runner/
├── Cargo.toml
├── README.md
├── src/
|   └── lib.rs
├── index.node
├── package.json
└── target/

| Entry | Purpose | |----------------|------------------------------------------------------------------------------------------------------------------------------------------| | Cargo.toml | The Cargo manifest file, which informs the cargo command. | | README.md | This file. | | src/ | The directory tree containing the Rust source code for the project. | | lib.rs | Entry point for the Rust source code. | | index.node | The main module, a Node addon generated by the build and pointed to by "main" in package.json. | | package.json | The npm manifest file, which informs the npm command. | | target/ | Binary artifacts generated by the Rust build. |

Learn More

Learn more about:

• Neon.
• Rust.
• Node.