👷 (PlatformIO): Upload binary if wokwi.toml present

Author: leon0399

.github/workflows/ci.yml

@@ -2,20 +2,10 @@ name: PlatformIO CI
 
 on:
   pull_request:
-    branches:
-      - main
-      - master
-      - develop
-      - feature/mpu6050
     paths:
       - "examples/**/*.ino"
       - "src/**/*"
   push:
-    branches:
-      - main
-      - master
-      - develop
-      - feature/mpu6050
     paths:
       - "examples/**/*.ino"
       - "src/**/*"
@@ -28,44 +18,28 @@ jobs:
       matrix:
         os: [ ubuntu-latest ]
         example:
-          - "examples/PCA9685/Servo/Servo.ino"
-          - "examples/PCA9685/VibroPulse/VibroPulse.ino"
-          - "examples/MPU6050/BasicReadings/BasicReadings.ino"
+          - "PCA9685/Servo"
+          - "PCA9685/VibroPulse"
+          - "MPU6050/BasicReadings"
         boards: [ [ uno, esp32dev ] ]
 
+    env:
+      PLATFORMIO_BUILD_DIR: "~/.build/${{ matrix.example }}"
+
     steps:
       - uses: actions/checkout@v4
 
-      # We will skip the build if there are no changes in the examples or src folder
-      - name: Get changed files
-        id: changed-files
-        uses: tj-actions/changed-files@v44
-        with:
-          files: |
-            "examples/**/*.ino"
-            "src/**/*"
-
-      - name: Extract device name
-        id: device
+      - id: metadata
         run: |
           # get 2nd element from the example path as lowercase
           DEVICE=$(echo "${{ matrix.example }}" | cut -d'/' -f2 | tr '[:upper:]' '[:lower:]')
           echo "device=$DEVICE" >> "$GITHUB_OUTPUT"
 
-      - name: Check if the build is necessary
-        id: should-build
-        run: |
-          if [ -z "${{ steps.changed-files.outputs.all_modified_files }}" ]; then
-            echo "No changes in the examples or src folder. Skipping the build."
-            echo "should_build=false" >> "$GITHUB_OUTPUT"
-          else
-            # todo: check device name with changed files
-            echo "Changes detected in the examples or src folder. Proceeding with the build."
-            echo "should_build=true" >> "$GITHUB_OUTPUT"
-          fi
+          // check if example folder contains a wokwi.toml file
+          SHOULD_UPLOAD_ARTIFACTS=$(test -f "examples/${{ matrix.example }}/wokwi.toml" && echo "true" || echo "false")
+          echo "upload_artifact=$SHOULD_UPLOAD_ARTIFACTS" >> "$GITHUB_OUTPUT"
 
       - name: Cache pip
-        if : ${{ steps.should-build.outputs.should_build == 'true' }}
         uses: actions/cache@v4
         with:
           path: ~/.cache/pip
@@ -74,7 +48,6 @@ jobs:
             ${{ runner.os }}-pip-
 
       - name: Cache PlatformIO
-        if : ${{ steps.should-build.outputs.should_build == 'true' }}
         uses: actions/cache@v4
         with:
           path: |
@@ -85,22 +58,32 @@ jobs:
             ${{ runner.os }}-pio-
 
       - name: Set up Python
-        if : ${{ steps.should-build.outputs.should_build == 'true' }}
         uses: actions/setup-python@v5
         with:
           python-version: "3.9"
 
       - name: Install PlatformIO
-        if : ${{ steps.should-build.outputs.should_build == 'true' }}
         run: |
           python -m pip install --upgrade pip
           pip install --upgrade platformio
           pio upgrade --dev
           pio pkg update --global
 
       - name: Build example
-        if : ${{ steps.should-build.outputs.should_build == 'true' }}
         run: |
-          pio ci --lib="." --board=${{ join(matrix.boards, ' --board=') }}
+          mkdir -p $PLATFORMIO_BUILD_DIR
+          pio ci --lib="." --board=${{ join(matrix.boards, ' --board=') }} --build-dir=$PLATFORMIO_BUILD_DIR --keep-build-dir
         env:
-          PLATFORMIO_CI_SRC: ${{ matrix.example }}
+          PLATFORMIO_CI_SRC: "./examples/${{ matrix.example }}/*.ino"
+
+      - name: Upload artifacts
+        if: steps.metadata.outputs.upload_artifact == 'true'
+        uses: actions/upload-artifact@v4
+        with:
+          name: example-${{ matrix.example }}
+          path: |
+            ${{ env.PLATFORMIO_BUILD_DIR }}/firmware.bin
+            ${{ env.PLATFORMIO_BUILD_DIR }}/firmware.elf
+            ${{ env.PLATFORMIO_BUILD_DIR }}/firmware.hex
+          retention-days: 1
+