name: CI (wasm)

on:
  workflow_dispatch: # allows manual triggering
  push:
    branches:
      - master
    paths: ['.github/workflows/build-wasm.yml',
            '**/CMakeLists.txt',
            '**/Makefile',
            '**/*.mk',
            '**/*.cmake',
            '**/*.in',
            '**/*.h',
            '**/*.hpp',
            '**/*.c',
            '**/*.cpp']

  pull_request:
    types: [opened, synchronize, reopened]
    paths-ignore:
      - 'bindings/ruby/**'        # handled by bindings-ruby.yml
      - 'bindings/go/**'          # handled by bindings-go.yml
      - 'examples/addon.node/**'  # handled by examples.yml

concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref && github.ref || github.run_id }}
  cancel-in-progress: true

jobs:
  emscripten:
    runs-on: ubuntu-22.04

    strategy:
      matrix:
        build: [Release]

    steps:
      - name: Clone
        uses: actions/checkout@v6

      - name: Setup emsdk
        uses: emscripten-core/setup-emsdk@6ab9eb1bda2574c4ddb79809fc9247783eaf9021 # v14

      - name: Verify
        run: emcc -v

      - name: ccache
        uses: ggml-org/ccache-action@v1.2.21
        with:
          key: wasm-ubuntu-22
          evict-old-files: 1d
          save: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}

      - name: Build
        env:
          CCACHE_SLOPPINESS: time_macros,include_file_mtime,include_file_ctime
          CCACHE_COMPILERCHECK: content
        run: |
          emcmake cmake -B build -DCMAKE_BUILD_TYPE=${{ matrix.build }} \
            -DCMAKE_C_COMPILER_LAUNCHER=ccache \
            -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
            "-DCMAKE_C_FLAGS=-ffile-prefix-map=$EMSDK=/emsdk" \
            "-DCMAKE_CXX_FLAGS=-ffile-prefix-map=$EMSDK=/emsdk"
          cmake --build build -j $(nproc)