build-wasm-libs.yml

name: Build wasm/asmjs libraryies

on:
  workflow_dispatch:
    inputs:
      environment:
        description: "Select a library"
        required: true
        default: "Spine"
        type: choice
        options:
          - Spine

jobs:
  build_spine_wasm_asmjs:
    name: "Build spine wasm/asmjs libs"
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Setup emsdk
        uses: dumganhar/setup-emsdk@997d2cde2deabda085a11f98e86e842915b0e846
        with:
          version: 3.1.41
          actions-cache-folder: 'emsdk-cache-3.1.41'

      - name: Verify
        run: |
          which emcc
          emcc -v

      - name: Install ninja
        run: |
          if ! command -v ninja &> /dev/null; then
              echo "Ninja not found, installing..."
              # sudo apt update
              sudo apt install ninja-build
          else
              echo "Ninja is already installed."
          fi
          which ninja

      - name: Apply emscripten patches
        run: |
          echo "--------------------------------- Save bind.cpp ---------------------------------"
          cp $EMSDK/upstream/emscripten/system/lib/embind/bind.cpp $EMSDK/upstream/emscripten/system/lib/embind/bind.cpp.bak
          echo "--------------------------------- Apply embind bind.cpp patches ---------------------------------"
          cp -f .github/workflows/emscripten-patches/embind/bind.cpp $EMSDK/upstream/emscripten/system/lib/embind/
          echo "--------------------------------- Apply patches DONE! ---------------------------------"
          cat $EMSDK/upstream/emscripten/system/lib/embind/bind.cpp

      - name: Build Spine WASM
        run: |
          cd ./native/cocos/editor-support/spine-wasm
          mkdir build-wasm
          cd build-wasm
          emcmake cmake .. -GNinja
          ninja
          ls -l

      - name: Build Spine ASMJS
        run: |
          cd ./native/cocos/editor-support/spine-wasm
          sed -i 's/set(BUILD_WASM 1)/set(BUILD_WASM 0)/g' CMakeLists.txt
          mkdir build-asmjs
          cd build-asmjs
          emcmake cmake .. -GNinja
          ninja
          ls -l
          
      - name: Copy files to dist directory
        run: |
          mkdir dist
          cp ./native/cocos/editor-support/spine-wasm/build-wasm/spine.wasm ./dist/
          cp ./native/cocos/editor-support/spine-wasm/build-wasm/spine.js ./dist/spine.wasm.js
          cp ./native/cocos/editor-support/spine-wasm/build-asmjs/spine.js.mem ./dist/
          cp ./native/cocos/editor-support/spine-wasm/build-asmjs/spine.js ./dist/spine.asm.js

      - name: Upload Artifact
        uses: actions/upload-artifact@v4
        with: 
          name: spine-emscripten
          path: dist

      - name: Restore patches
        run: |
          echo "-------------------------- Restore patches ---------------------------------"
          rm $EMSDK/upstream/emscripten/system/lib/embind/bind.cpp
          mv $EMSDK/upstream/emscripten/system/lib/embind/bind.cpp.bak $EMSDK/upstream/emscripten/system/lib/embind/bind.cpp
          echo "-------------------------- Restore patches DONE! ---------------------------------"
          cat $EMSDK/upstream/emscripten/system/lib/embind/bind.cpp