Update build workflow to use official Zephyr setup action and restrict OS matrix to Windows

Author: andre-stefanov

.github/actions/setup-zephyr/action.yml

@@ -11,45 +11,52 @@ permissions:
 
 jobs:
   build:
-    name: Build app and tests
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-22.04, macos-26, windows-2022]
+        os: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.os }}
+
     steps:
-      - name: Checkout
-        uses: actions/checkout@v4
+      # Checkout into "app" so app-path can be stable everywhere
+      - uses: actions/checkout@v4
         with:
-          path: OpenAstroFocuser
-          persist-credentials: false
+          path: app
+
+      # On Windows, copy the repo to a very short path to avoid MAX_PATH issues
+      - name: Prepare short workspace (Windows)
+        if: runner.os == 'Windows'
+        shell: pwsh
+        run: |
+          New-Item -ItemType Directory -Force -Path C:\z | Out-Null
+          Remove-Item -Recurse -Force C:\z\app -ErrorAction SilentlyContinue
+          Copy-Item -Recurse -Force "$env:GITHUB_WORKSPACE\app" "C:\z\app"
 
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
           python-version: 3.12
 
-      - name: Setup Zephyr project
-        uses: ./OpenAstroFocuser/.github/actions/setup-zephyr
+      # Setup Zephyr
+      - name: Setup Zephyr (Windows short path)
+        if: runner.os == 'Windows'
+        uses: zephyrproject-rtos/action-zephyr-setup@8354324d917cd398fb48d5fdd759cd61e147f084
         with:
-          app-path: OpenAstroFocuser
-          toolchains: arm-zephyr-eabi:xtensa-espressif_esp32s3_zephyr-elf
-          ccache-cache-key: ${{ matrix.os }}
+          base-path: 'C:\z'
+          app-path: 'app'
+          toolchains: 'xtensa-espressif_esp32s3_zephyr-elf'
 
-      - name: Build firmware
-        working-directory: OpenAstroFocuser
-        shell: bash
-        run: |
-          if [ "${{ runner.os }}" = "Windows" ]; then
-            EXTRA_TWISTER_FLAGS="--short-build-path -O/tmp/twister-out"
-          fi
-          west twister -T app -v --inline-logs --integration $EXTRA_TWISTER_FLAGS
+      - name: Setup Zephyr (Linux/macOS)
+        if: runner.os != 'Windows'
+        uses: zephyrproject-rtos/action-zephyr-setup@8354324d917cd398fb48d5fdd759cd61e147f084
+        with:
+          base-path: '.'
+          app-path: 'app'
+          toolchains: 'xtensa-espressif_esp32s3_zephyr-elf'
 
-      - name: Twister Tests
-        working-directory: OpenAstroFocuser
+      # Example build step (adjust to your project)
+      - name: Build
         shell: bash
+        working-directory: ${{ runner.os == 'Windows' && 'C:\z' || '.' }}
         run: |
-          if [ "${{ runner.os }}" = "Windows" ]; then
-            EXTRA_TWISTER_FLAGS="--short-build-path -O/tmp/twister-out"
-          fi
-          west twister -T tests -v --inline-logs --integration $EXTRA_TWISTER_FLAGS
+          west build -b your_board app