ci: validate building as ESP-IDF component

Author: igrr

.github/workflows/push.yml

@@ -56,3 +56,30 @@ jobs:
  python-version: '3.x'
  - name: Build Sketches
  run: bash ./.github/scripts/on-push.sh 1 1 #equal and non-zero to trigger PIO
+
+ build-esp-idf-component:
+ name: Build with ESP-IDF ${{ matrix.idf_ver }} for ${{ matrix.idf_target }}
+ runs-on: ubuntu-20.04
+ strategy:
+ matrix:
+ # The version names here correspond to the versions of espressif/idf Docker image.
+ # See https://hub.docker.com/r/espressif/idf/tags and
+ # https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/tools/idf-docker-image.html
+ # for details.
+ idf_ver: ["release-v4.4"]
+ idf_target: ["esp32", "esp32s2", "esp32c3"]
+ container: espressif/idf:${{ matrix.idf_ver }}
+ steps:
+ - name: Check out arduino-esp32 as a component
+ uses: actions/checkout@v2
+ with:
+ submodules: recursive
+ path: components/arduino-esp32
+ - name: Build
+ env:
+ IDF_TARGET: ${{ matrix.idf_target }}
+ shell: bash
+ run: |
+ . ${IDF_PATH}/export.sh
+ idf.py create-project test
+ idf.py -C test -DEXTRA_COMPONENT_DIRS=$PWD/../components build