ci: add astyle, spell check and compile examples

Compile examples currently disabled as STM32 core
version 2.1.0 is required.

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>

Author: fpistm

.github/workflows/astyle.yml

@@ -0,0 +1,21 @@
+name: Astyle Check
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Astyle check
+        id: Astyle
+        uses: stm32duino/actions/astyle-check@master
+      # Use the output from the `Astyle` step
+      - name: Astyle Errors
+        if: failure()
+        run: |
+          cat ${{ steps.Astyle.outputs.astyle-result }}
+          exit 1

.github/workflows/compile-examples.yml

@@ -0,0 +1,25 @@
+name: Compile Examples
+on:
+  - push
+  - pull_request
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        fqbn:
+          - STMicroelectronics:stm32:Nucleo_64:pnum=NUCLEO_L476RG
+          # - STMicroelectronics:stm32:Disco:pnum=B_U585I_IOT02A
+          # - STMicroelectronics:stm32:Disco:pnum=STM32WB5MM_DK
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: arduino/compile-sketches@v1
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          fqbn: ${{ matrix.fqbn }}
+          platforms: |
+            - source-url: https://github.com/stm32duino/BoardManagerFiles/raw/master/package_stmicroelectronics_index.json
+              name: STMicroelectronics:stm32

.github/workflows/spell-check.yml

@@ -0,0 +1,16 @@
+name: Spell Check
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Spell check
+        uses: arduino/actions/libraries/spell-check@master
+        with:
+          ignore-words-list: ./extras/codespell-ignore-words-list.txt

extras/codespell-ignore-words-list.txt

@@ -0,0 +1 @@
+ois