yurydelendik / rust-heroku-slug

Source for WebAssembly Studio rustc service

Rustc service for WebAssembly Studio

This is heroku rustc compiler microservice for WebAssembly Studio. It is also a slug builder.

Running service locally

The app/server can be run from the "app" folder:

cd app
node .

By default it will run on "0.0.0.0:8082" address. Use PORT environment variable to change it.

Before running it first time, you will need to setup the dependencies:

1. rustup, see https://www.rustup.rs/
2. rustc nightly channel: rustup toolchain install nightly
3. and wasm target: rustup target add wasm32-unknown-unknown --toolchain nightly
4. wasm-gc: cargo install wasm-gc
5. wasm-bindgen: cargo install wasm-bindgen-cli
6. rustfmt nightly channel: rustup component add rustfmt-preview --toolchain nightly

See also Rust for the Web for details.

Change configuration in WebAssembly Studio

The "rustc" and "cargo" endpoints addresses can be located at the https://github.com/wasdk/WebAssemblyStudio/blob/master/config.json and be changed locally.

Building and installing the slug

Run APP=<your-heroku-app> make publish to fully build and setup slug at your app.

rust-heroku-slug's Issues

update readme to reflect new cargo service

as of #3 we have a new service. we should update the readme

Error: ... editions are unstable ...

https://webassembly.studio/?f=3kwj587992f

[error]: Task build failed: Error: Command failed: /app/.cargo/bin/cargo build --manifest-path=/tmp/rustc_h_x5w620prjdl/Cargo.toml --target=wasm32-unknown-unknown -Z unstable-options --build-plan --quiet

Caused by:
  failed to parse manifest at `/app/.cargo/registry/src/github.com-1ecc6299db9ec823/seed-0.3.6/Cargo.toml`

Caused by:
  editions are unstable

Caused by:
  feature `edition` is required

consider adding `cargo-features = ["edition"]` to the manifest

Could you update tools in this service?
According to this cargo issue, these commands should resolve it:

rustup update
cargo install --force cargo-outdated