Add more auto-checks (#180)

Arduino lint and report size deltas (for PRs only)

Author: tfry-git

.github/workflows/arduino_lint.yml

@@ -0,0 +1,18 @@
+name: Arduino Lint
+on:
+  push:
+  pull_request:
+  # Allow manual trigger
+  workflow_dispatch:
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - uses: arduino/arduino-lint-action@v1
+        with:
+          project-type: library
+          library-manager: update
+          compliance: specification

.github/workflows/compile_examples.yml

@@ -4,14 +4,14 @@ name: Compile Examples
 on:
   push:
     paths:
-      - ".github/workflows/compile_examples.yml"
+      - ".github/workflows/**"
       - "examples/**"
       - "**.cpp"
       - "**.h"
       - "**.hpp"
   pull_request:
     paths:
-      - ".github/workflows/compile_examples.yml"
+      - ".github/workflows/**"
       - "examples/**"
       - "**.cpp"
       - "**.h"
@@ -69,4 +69,21 @@ jobs:
         with:
           if-no-files-found: error
           path: ${{ env.SKETCHES_REPORTS_PATH }}
-          name: ${{ env.SKETCHES_REPORTS_PATH }}
+          name: sketches-reports-artifact
+
+  # When using a matrix to compile for multiple boards, it's necessary to use a separate job for the deltas report
+  report:
+    needs: build # Wait for the compile job to finish to get the data for the report
+    if: github.event_name == 'pull_request' # Only run the job when the workflow is triggered by a pull request
+    runs-on: ubuntu-latest
+    steps:
+      # This step is needed to get the size data produced by the compile jobs
+      - name: Download sketches reports artifact
+        uses: actions/download-artifact@v2
+        with:
+          name: sketches-reports-artifact
+          path: ${{ env.SKETCHES_REPORTS_PATH }}
+
+      - uses: arduino/report-size-deltas@v1
+        with:
+          sketches-reports-source: ${{ env.SKETCHES_REPORTS_PATH }}