Add clang-tidy check to display warnings on GitHub

tests/test-tidy.sh

@@ -0,0 +1,25 @@
+#!/bin/sh
+
+set -e
+
+if [ -z "$GITHUB_BASE_REF" ]
+then
+  echo "This script is only meant to be run in a GitHub Workflow"
+  exit 1
+fi
+
+CHANGED_FILES=$(git diff --name-only "$GITHUB_BASE_REF"...HEAD)
+
+for file in $CHANGED_FILES
+do
+  [ -e "$file" ] || continue
+  case "$file" in
+  src/libs/*|src/FreeRTOS/*) continue ;;
+  *.cpp|*.h)
+    echo "::group::$file"
+    clang-tidy-12 -p build "$file" || true
+    echo "::endgroup::"
+  esac
+done
+
+exit 0