ci: add build workflow

link https://github.com/espressif/esp-drone/issues/100
https://github.com/espressif/esp-drone/issues/96

.build-test-rules.yml

@@ -0,0 +1,3 @@
+/:
+  enable:
+    - if: IDF_TARGET in ["esp32s3","esp32s2","esp32"]

.github/workflows/build_project.yml

@@ -0,0 +1,22 @@
+name: Build project
+
+on: push
+  
+jobs:
+  build:
+    strategy:
+      matrix:
+        idf_ver: ["release-v4.4", "release-v5.0"] 
+    runs-on: ubuntu-20.04
+    container: espressif/idf:${{ matrix.idf_ver }}
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: 'recursive'
+      - name: Build project
+        shell: bash
+        run: |
+          . ${IDF_PATH}/export.sh
+          pip install idf-component-manager idf-build-apps --upgrade
+          idf-build-apps find
+          idf-build-apps build

.gitlab-ci.yml

@@ -21,7 +21,7 @@ before_script:
   tags:
     - build
 
-build_demo_cmake_idf44:
+build_project_idf44:
   <<: *build_examples_template
   image: espressif/idf:release-v4.4
   script:
@@ -34,7 +34,7 @@ build_demo_cmake_idf44:
     - idf.py set-target esp32s3
     - idf.py build
 
-build_demo_cmake_idf50:
+build_project_idf50:
   <<: *build_examples_template
   image: espressif/idf:release-v5.0
   script:

.idf_build_apps.toml

@@ -0,0 +1,6 @@
+paths = "."
+check_warnings = false
+build_dir = "build_@t"
+manifest_filepatterns = [
+    '**/.build-test-rules.yml',
+]