main.yml

name: CI
on:
  pull_request:
  merge_group:

defaults:
  run:
    shell: bash

# Cancel any in-flight jobs for the same PR/branch so there's only one active
# at a time
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build:
    name: Build wit-bindgen
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        include:
        - build: x86_64-linux
          os: ubuntu-latest
          env:
            CARGO_BUILD_TARGET: x86_64-unknown-linux-gnu
            DOCKER_IMAGE: ./ci/docker/x86_64-linux/Dockerfile
        - build: aarch64-linux
          os: ubuntu-latest
          env:
            CARGO_BUILD_TARGET: aarch64-unknown-linux-gnu
            DOCKER_IMAGE: ./ci/docker/aarch64-linux/Dockerfile
        - build: riscv64gc-linux
          os: ubuntu-latest
          env:
            CARGO_BUILD_TARGET: riscv64gc-unknown-linux-gnu
            DOCKER_IMAGE: ./ci/docker/riscv64gc-linux/Dockerfile

        - build: x86_64-macos
          os: macos-latest
          env:
            CARGO_BUILD_TARGET: x86_64-apple-darwin
            MACOSX_DEPLOYMENT_TARGET: 10.12
        - build: aarch64-macos
          os: macos-latest
          env:
            CARGO_BUILD_TARGET: aarch64-apple-darwin
            MACOSX_DEPLOYMENT_TARGET: 10.12

        - build: x86_64-windows
          os: windows-latest
          env:
            CARGO_BUILD_TARGET: x86_64-pc-windows-msvc
            RUSTFLAGS: -Ctarget-feature=+crt-static
        - build: aarch64-windows
          os: windows-11-arm
          env:
            CARGO_BUILD_TARGET: aarch64-pc-windows-msvc
            RUSTFLAGS: -Ctarget-feature=+crt-static

    env: ${{ matrix.env }}
    steps:
    - uses: actions/checkout@v4
      with:
        submodules: true
    - run: rustup update stable --no-self-update && rustup default stable
    - run: rustup target add $CARGO_BUILD_TARGET
    - run: ./ci/build-release-artifacts.sh
    - run: ./ci/build-tarballs.sh "${{ matrix.build }}"
    - uses: actions/upload-artifact@v4
      with:
        name: bins-${{ matrix.build }}
        path: dist

  test:
    name: Test
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
        # moonbit removed from language matrix for now - causing CI failures
        lang: [c, rust, csharp, cpp, go, d]
        exclude:
          # For now csharp doesn't work on macos, so exclude it from testing.
          - os: macos-latest
            lang: csharp
    runs-on: ${{ matrix.os }}
    steps:
    - uses: actions/checkout@v4
      with:
        submodules: true
    # FIXME(rust-lang/rust#148347) current rust (1.91) is broken
    - name: Install Rust
      run: rustup update 1.90.0 --no-self-update && rustup default 1.90.0
    - run: rustup target add wasm32-wasip1 wasm32-wasip2

    - run: rustup target add wasm32-unknown-unknown
      if: matrix.lang == 'rust'

    - uses: ./.github/actions/install-wasi-sdk

    - name: Setup .NET
      uses: actions/setup-dotnet@v4
      with:
        dotnet-version: '9.x'
      if: matrix.lang == 'csharp'

    - name: Setup Go
      uses: actions/setup-go@v5
      with:
        go-version: 1.25.4
      if: matrix.lang == 'go'

    - name: Setup D
      uses: dlang-community/setup-dlang@v2
      with:
        compiler: ldc-1.41
      if: matrix.lang == 'd'

      # Hacky work-around for https://github.com/dotnet/runtime/issues/80619
    - run: dotnet new console -o /tmp/foo
      if: matrix.os != 'windows-latest' && matrix.lang == 'csharp'

    - run: |
        curl -fsSL https://cli.moonbitlang.com/install/unix.sh | bash
        echo "$HOME/.moon/bin" >> $GITHUB_PATH
      if: matrix.os != 'windows-latest' && matrix.lang == 'moonbit'
    - run: |
        Set-ExecutionPolicy RemoteSigned -Scope CurrentUser; irm https://cli.moonbitlang.com/install/powershell.ps1 | iex
        "C:\Users\runneradmin\.moon\bin" | Out-File -FilePath $env:GITHUB_PATH -Append
      shell: powershell
      if: matrix.os == 'windows-latest' && matrix.lang == 'moonbit'

    # Run all codegen tests for this language
    - run: |
        cargo run test --languages ${{ matrix.lang }} tests/codegen \
          --artifacts target/artifacts \
          --rust-wit-bindgen-path ./crates/guest-rust

    # Run all runtime tests for this language, and also enable Rust in case this
    # language only implements either the runner or test component
    - run: |
        cargo run test --languages rust,${{ matrix.lang }} tests/runtime \
          --artifacts target/artifacts \
          --rust-wit-bindgen-path ./crates/guest-rust

  # While async is off-by-default and toolchains are percolating this is a
  # separate job to get configured slightly differently.
  async:
    name: Test Async (allowed to fail)
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
      with:
        submodules: true

    - name: Install Rust
      run: rustup update stable --no-self-update && rustup default stable
    - run: rustup target add wasm32-wasip2

    # As of this writing, we need [a patched build of
    # Go](https://github.com/dicej/go/releases/tag/go1.25.5-wasi-on-idle) to
    # support async.
    - name: Install Patched Go
      run: |
        curl -OL https://github.com/dicej/go/releases/download/go1.25.5-wasi-on-idle/go-linux-amd64-bootstrap.tbz
        tar xf go-linux-amd64-bootstrap.tbz
        echo "$(pwd)/go-linux-amd64-bootstrap/bin" >> $GITHUB_PATH

    - uses: ./.github/actions/install-wasi-sdk
    - run: |
        cargo run test --languages rust,c,go tests/runtime-async \
          --artifacts target/artifacts \
          --rust-wit-bindgen-path ./crates/guest-rust

  test_unit:
    name: Crate Unit Tests
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
      with:
        submodules: true
    - name: Install Rust
      run: rustup update stable --no-self-update && rustup default stable
    - run: rustup target add wasm32-wasip1
    - run: cargo test
    - run: cargo test -p wit-bindgen-core
    - run: cargo test -p wit-bindgen
    - run: cargo test -p wit-bindgen --all-features
    - run: cargo test -p wit-bindgen-rust
    - run: cargo test --workspace --exclude 'wit-bindgen*'
    - run: rustup update nightly-2025-11-10 --no-self-update
    - run: rustup default nightly-2025-11-10
    - run: rustup component add miri
    - run: rustup component add rust-src
    - run: cargo miri test -p wit-bindgen --all-features

  check:
    name: Check
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - name: Install Rust
      run: rustup update stable --no-self-update && rustup default stable
    - name: Install wasm32-unknown-unknown target
      run: rustup target add wasm32-unknown-unknown
    - name: Install wasm32-wasip1 target
      run: rustup target add wasm32-wasip1

    # Verify the output of the `./ci/rebuild-libwit-bindgen-cabi.sh` script is
    # up-to-date.
    - uses: ./.github/actions/install-wasi-sdk
    - run: ./ci/rebuild-libwit-bindgen-cabi.sh
    - run: git diff --exit-code

    # Test various feature combinations, make sure they all build
    - run: cargo build
    - run: cargo build --no-default-features
    - run: cargo build --no-default-features --features rust
    - run: cargo build --no-default-features --features c
    - run: cargo build --no-default-features --features go
    - run: cargo build --no-default-features --features csharp
    - run: cargo build --no-default-features --features markdown
    - run: cargo build --no-default-features --features moonbit

    # Feature combos of the `wit-bindgen` crate
    - run: cargo build --target wasm32-wasip1 -p wit-bindgen --no-default-features
    - run: cargo build --target wasm32-wasip1 -p wit-bindgen --no-default-features --features realloc
    - run: cargo build --target wasm32-wasip1 -p wit-bindgen --no-default-features --features macros
    - run: cargo build --target wasm32-wasip1 -p wit-bindgen --no-default-features --features macros,realloc
    - run: cargo build --target wasm32-wasip1 -p wit-bindgen --no-default-features --features async
    - run: cargo build --target wasm32-wasip1 -p wit-bindgen --no-default-features --features async-spawn
    - run: cargo build --target wasm32-wasip1 -p wit-bindgen --no-default-features --features async,macros
    - run: cargo build --target wasm32-wasip1 -p wit-bindgen --no-default-features --features inter-task-wakeup
    - run: cargo build --target wasm32-wasip1 -p wit-bindgen --no-default-features --features futures-stream

    # Verity that documentation can be generated for the rust bindings crate.
    - run: rustup update nightly --no-self-update
    - run: cargo +nightly doc -p wit-bindgen --no-deps
      env:
        RUSTDOCFLAGS: --cfg=docsrs

  rustfmt:
    name: Rustfmt
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - name: Install Rust
      run: rustup update stable && rustup default stable && rustup component add rustfmt
    - name: Format source code
      run: cargo fmt -- --check

  verify-publish:
    if: github.repository_owner == 'bytecodealliance'
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
      with:
        submodules: true
    - run: rustup update stable && rustup default stable
    - run: rustc ci/publish.rs
    # Make sure the tree is publish-able as-is
    - run: ./publish verify
    # Make sure we can bump version numbers for the next release
    - run: ./publish bump

  # "Join node" which the merge queue waits on.
  ci-status:
    name: Record the result of testing and building steps
    runs-on: ubuntu-latest
    needs:
      - test
      - test_unit
      - rustfmt
      - build
      - verify-publish
      - check
      # - async
    if: always()

    steps:
    - name: Successful test and build
      if: ${{ !(contains(needs.*.result, 'failure')) }}
      run: exit 0
    - name: Failing test and build
      if: ${{ contains(needs.*.result, 'failure') }}
      run: exit 1
    - name: Report failure on cancellation
      if: ${{ contains(needs.*.result, 'cancelled') || cancelled() }}
      run: exit 1

  clippy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
      - run: rustup update stable --no-self-update && rustup default stable
      - run: rustup component add clippy
      - run: cargo clippy --workspace --all-targets -- -D warnings