Add CEF 147, Python 3.10–3.14, Linux/macOS ARM64/Windows support with modern build system

.github/workflows/ci-linux.yml

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+name: CI Linux
+
+on:
+  push:
+    branches: ["master", "cefpython147"]
+  pull_request:
+    branches: ["master", "cefpython147"]
+  workflow_dispatch:
+    inputs:
+      bypass_cache:
+        description: "Bypass all caches for a clean run"
+        type: boolean
+        default: false
+
+jobs:
+  download-cef:
+    runs-on: ubuntu-24.04
+    timeout-minutes: 15
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.10"
+
+      - name: Read CEF version
+        id: cef-version
+        run: |
+          ver=$(grep -oP '(?<=#define CEF_VERSION ")[^"]+' src/version/cef_version_linux.h)
+          echo "value=$ver" >> $GITHUB_OUTPUT
+
+      - name: Cache CEF binaries
+        uses: actions/cache@v4
+        if: ${{ inputs.bypass_cache != true }}
+        with:
+          path: |
+            build/cef_binary_*
+            build/cef*_linux64
+          key: cef-linux64-${{ steps.cef-version.outputs.value }}
+
+      - name: Install build tools
+        run: python tools/requirements.py
+
+      - name: Download CEF binaries
+        run: python tools/download_cef.py
+
+  wheel:
+    needs: download-cef
+    runs-on: ubuntu-24.04
+    timeout-minutes: 75
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Read CEF version
+        id: cef-version
+        run: |
+          ver=$(grep -oP '(?<=#define CEF_VERSION ")[^"]+' src/version/cef_version_linux.h)
+          echo "value=$ver" >> $GITHUB_OUTPUT
+
+      - name: Restore CEF cache
+        uses: actions/cache/restore@v4
+        if: ${{ inputs.bypass_cache != true }}
+        with:
+          path: |
+            build/cef_binary_*
+            build/cef*_linux64
+          key: cef-linux64-${{ steps.cef-version.outputs.value }}
+
+      - name: Install system dependencies
+        run: |
+          sudo apt-get update -q
+          sudo apt-get install -y --no-install-recommends \
+            cmake ninja-build pkg-config \
+            libgtk2.0-dev libgtk-3-dev \
+            libglib2.0-dev libx11-dev \
+            libnss3-dev libatk1.0-dev \
+            libxcomposite-dev libxdamage-dev libxext-dev \
+            libxfixes-dev libxrandr-dev libxrender-dev
+
+      - name: Install build tools
+        run: python tools/requirements.py
+
+      - name: Prepare prebuilt CEF
+        run: python tools/automate.py --prebuilt-cef
+
+      - name: Configure CMake
+        run: cmake -S . -B build/_cmake_build -G Ninja -DCMAKE_BUILD_TYPE=Release
+
+      - name: Build
+        run: cmake --build build/_cmake_build --parallel
+
+      - name: Stage build outputs
+        run: |
+          mkdir -p build/artifacts
+          cp build/_cmake_build/cefpython_py*.so build/artifacts/
+          cp build/_cmake_build/subprocess_build/subprocess build/artifacts/
+          cef_dir=$(ls -d build/cef*_linux64 2>/dev/null | head -1)
+          find "$cef_dir/bin" -maxdepth 1 -mindepth 1 \
+            ! -name 'cefclient*' ! -name 'cefsimple*' ! -name 'ceftests*' ! -name 'chrome-sandbox' \
+            -exec cp -r {} build/artifacts/ \;
+
+      - name: Install runtime dependencies
+        run: |
+          sudo apt-get install -y --no-install-recommends \
+            libnss3 libatk1.0-0 libatk-bridge2.0-0 \
+            libx11-6 libxcomposite1 libxdamage1 libxext6 \
+            libxfixes3 libxrandr2 libxrender1 \
+            libgtk2.0-0 libglib2.0-0 xvfb
+
+      - name: Set up cefpython3 package
+        run: |
+          cp -r build/artifacts/. cefpython3/
+          chmod +x cefpython3/subprocess
+
+      - name: Resize /dev/shm for Chromium shared memory
+        run: sudo mount -o remount,size=512m /dev/shm
+
+      - name: Run unit tests
+        run: xvfb-run python unittests/_test_runner.py
+        env:
+          PYTHONPATH: ${{ github.workspace }}
+
+      - name: Build wheel
+        run: python tools/build_distrib.py
+
+      - name: Upload wheel artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: cefpython3-py${{ matrix.python-version }}-linux64
+          path: build/dist/*.whl

.github/workflows/ci-macos.yml

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+name: CI macOS ARM
+
+on:
+  push:
+    branches: ["master", "cefpython147"]
+  pull_request:
+    branches: ["master", "cefpython147"]
+  workflow_dispatch:
+    inputs:
+      bypass_cache:
+        description: "Bypass all caches for a clean run"
+        type: boolean
+        default: false
+
+jobs:
+  download-cef:
+    runs-on: macos-14
+    timeout-minutes: 15
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.10"
+
+      - name: Read CEF version
+        id: cef-version
+        run: |
+          ver=$(python3 -c "
+          import re, sys
+          h = open('src/version/cef_version_macarm64.h').read()
+          m = re.search(r'#define CEF_VERSION \"([^\"]+)\"', h)
+          print(m.group(1))
+          ")
+          echo "value=$ver" >> $GITHUB_OUTPUT
+
+      - name: Cache CEF binaries
+        uses: actions/cache@v4
+        if: ${{ inputs.bypass_cache != true }}
+        with:
+          path: |
+            build/cef_binary_*
+            build/cef*_macarm64
+          key: cef-macosarm64-v3-${{ steps.cef-version.outputs.value }}
+
+      - name: Install build tools
+        run: python tools/requirements.py
+
+      - name: Download CEF binaries
+        run: python tools/download_cef.py
+
+  compile:
+    needs: download-cef
+    runs-on: macos-14
+    timeout-minutes: 90
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Read CEF version
+        id: cef-version
+        run: |
+          ver=$(python3 -c "
+          import re, sys
+          h = open('src/version/cef_version_macarm64.h').read()
+          m = re.search(r'#define CEF_VERSION \"([^\"]+)\"', h)
+          print(m.group(1))
+          ")
+          echo "value=$ver" >> $GITHUB_OUTPUT
+
+      - name: Restore CEF cache
+        uses: actions/cache/restore@v4
+        if: ${{ inputs.bypass_cache != true }}
+        with:
+          path: |
+            build/cef_binary_*
+            build/cef*_macarm64
+          key: cef-macosarm64-v3-${{ steps.cef-version.outputs.value }}
+
+      - name: Install build tools
+        run: python tools/requirements.py
+
+      - name: Prepare prebuilt CEF
+        run: python tools/automate.py --prebuilt-cef
+
+      - name: Verify CEF architecture
+        run: |
+          wrapper=$(ls build/cef*_macarm64/lib/libcef_dll_wrapper.a 2>/dev/null | head -1)
+          if [ -z "$wrapper" ]; then echo "libcef_dll_wrapper.a not found"; exit 1; fi
+          archs=$(lipo -info "$wrapper" 2>&1)
+          echo "$archs"
+          echo "$archs" | grep -q arm64 || { echo "ERROR: libcef_dll_wrapper.a is not arm64"; exit 1; }
+
+      - name: Configure CMake
+        run: cmake -S . -B build/_cmake_build -G Ninja -DCMAKE_BUILD_TYPE=Release
+
+      - name: Build
+        run: cmake --build build/_cmake_build --parallel
+
+      - name: Stage build outputs
+        run: |
+          mkdir -p build/artifacts
+          cp build/_cmake_build/cefpython_py*.so build/artifacts/
+          cp build/_cmake_build/subprocess_build/subprocess build/artifacts/
+          cef_dir=$(ls -d build/cef*_macarm64 2>/dev/null | head -1)
+          find "$cef_dir/bin" -maxdepth 1 -mindepth 1 \
+            ! -name 'cefclient*' ! -name 'cefsimple*' ! -name 'ceftests*' \
+            -exec cp -r {} build/artifacts/ \;
+
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: build-py${{ matrix.python-version }}-macosarm64
+          path: build/artifacts/
+          retention-days: 1
+
+  test:
+    needs: compile
+    runs-on: macos-14
+    timeout-minutes: 30
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Download build artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: build-py${{ matrix.python-version }}-macosarm64
+          path: build/artifacts/
+
+      - name: Set up cefpython3 package for testing
+        run: |
+          cp -r build/artifacts/. cefpython3/
+          chmod +x cefpython3/subprocess
+          # Ad-hoc sign our compiled binaries so macOS allows them to run.
+          # (Our freshly built binaries have no signature; unsigned binaries
+          # are blocked on macOS 14+.)
+          codesign --force --sign - cefpython3/subprocess
+          for f in cefpython3/cefpython_py*.so; do codesign --force --sign - "$f"; done
+
+      - name: Run unit tests
+        run: |
+          # Create a minimal app bundle so Python has a CFBundleIdentifier.
+          # CEF 130+ forms the MachPortRendezvousServer bootstrap service name
+          # as BaseBundleID()+".MachPortRendezvousServer."+pid.  Without a
+          # bundle ID the name starts with "." which bootstrap_register rejects,
+          # causing renderer subprocesses to crash.  Setting CFProcessPath
+          # before Python starts makes CFBundleGetMainBundle() return this
+          # bundle, giving BaseBundleID() a valid value before CefInitialize().
+          BUNDLE_DIR="${{ github.workspace }}/CEFPython.app"
+          mkdir -p "$BUNDLE_DIR/Contents/MacOS"
+          ln -sf "$(which python)" "$BUNDLE_DIR/Contents/MacOS/python"
+          cat > "$BUNDLE_DIR/Contents/Info.plist" << 'PLIST'
+          <?xml version="1.0" encoding="UTF-8"?>
+          <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+          <plist version="1.0">
+          <dict>
+            <key>CFBundleIdentifier</key>
+            <string>org.cefpython</string>
+            <key>CFBundleName</key>
+            <string>CEFPython</string>
+            <key>CFBundleExecutable</key>
+            <string>python</string>
+          </dict>
+          </plist>
+          PLIST
+          PYTHONPATH="${{ github.workspace }}" \
+          CFProcessPath="$BUNDLE_DIR/Contents/MacOS/python" \
+            python unittests/_test_runner.py
+
+  wheel:
+    needs: test
+    runs-on: macos-14
+    timeout-minutes: 15
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Download build artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: build-py${{ matrix.python-version }}-macosarm64
+          path: build/artifacts/
+
+      - name: Set up cefpython3 package
+        run: cp -r build/artifacts/. cefpython3/
+
+      - name: Codesign binaries for distribution
+        run: |
+          # Ad-hoc sign the subprocess binary so macOS 14+ Gatekeeper allows
+          # it to execute when users install the wheel. Without signing,
+          # macOS blocks the unsigned binary and the GPU process (which uses
+          # the same binary with --type=gpu-process) exits with code 1003
+          # (GPU_DEAD_ON_ARRIVAL), causing a fatal crash.
+          codesign --force --sign - cefpython3/subprocess
+          for f in cefpython3/cefpython_py*.so; do codesign --force --sign - "$f"; done
+
+      - name: Build wheel
+        run: python tools/build_distrib.py
+
+      - name: Upload wheel artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: cefpython3-py${{ matrix.python-version }}-macosarm64
+          path: build/dist/*.whl