edge-python/.github/workflows/_wasm.yml at main · dylan-sutton-chavez/edge-python · GitHub

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name: _WebAssembly Build

on:
  workflow_call:

jobs:
  build:
    name: WebAssembly
    runs-on: ubuntu-latest
    permissions:
      contents: write

    steps:
      - uses: actions/checkout@v6

      - name: Cache Rust
        uses: Swatinem/rust-cache@v2

      - uses: dtolnay/rust-toolchain@nightly
        with:
          components: rust-src

      - name: Install wasm target
        run: rustup target add wasm32-unknown-unknown

      - name: Install wasm-opt
        run: |
          curl -sSL https://github.com/WebAssembly/binaryen/releases/download/version_121/binaryen-version_121-x86_64-linux.tar.gz \
            | tar -xz --strip-components=2 -C /usr/local/bin binaryen-version_121/bin/wasm-opt
          wasm-opt --version

      - name: Build
        run: |
          RUSTFLAGS="-Z location-detail=none -Z fmt-debug=none -Z unstable-options -C panic=immediate-abort" \
          cargo +nightly build \
            --target wasm32-unknown-unknown \
            --lib \
            --release \
            -p edge-python \
            -Z build-std=std,panic_abort

      - name: Size (unoptimized)
        run: ls -lh target/wasm32-unknown-unknown/release/compiler_lib.wasm

      - name: Optimize
        run: |
          INPUT=target/wasm32-unknown-unknown/release/compiler_lib.wasm

          wasm-opt -Oz --converge \
            --generate-global-effects \
            --strip-debug --strip-producers \
            --enable-bulk-memory-opt \
            --enable-nontrapping-float-to-int \
            --enable-sign-ext \
            -tnh \
            -o /tmp/wasm_stage1.wasm "$INPUT"

          wasm-opt --flatten --rereloop -Oz -Oz \
            --enable-bulk-memory-opt \
            --enable-nontrapping-float-to-int \
            --enable-sign-ext \
            -o "$INPUT" /tmp/wasm_stage1.wasm

          rm /tmp/wasm_stage1.wasm

      - name: Size (optimized)
        run: ls -lh target/wasm32-unknown-unknown/release/compiler_lib.wasm

      # `--no-default-features` disables the producer's `prebuilt` feature so `compiler/build.rs` doesn't try to fetch the release wasm asset (which is uploaded later in this job on a first-tag publish).
      - name: Test
        run: cargo test -p edge-python --no-default-features

      - name: Upload wasm artifact
        uses: actions/upload-artifact@v6
        with:
          name: compiler_lib_wasm
          path: target/wasm32-unknown-unknown/release/compiler_lib.wasm
          retention-days: 1

      - name: Upload WASM Release
        uses: softprops/action-gh-release@v2
        if: startsWith(github.ref, 'refs/tags/')
        with:
          files: target/wasm32-unknown-unknown/release/compiler_lib.wasm
          fail_on_unmatched_files: true
          generate_release_notes: true