Add a clang-tidy check for analyzer tests.

.github/workflows/clang-tidy.yml

@@ -0,0 +1,29 @@
+name: Run clang-tidy
+on:
+  push:
+    paths:
+    - '**.c'
+    - '**.h'
+  pull_request:
+
+jobs:
+  analyze:
+    runs-on: ubuntu-latest
+
+    name: Install clang-tidy
+    steps:
+    - uses: actions/checkout@v3
+    - name: Install clang-tidy
+      run: |
+        sudo apt install clang-tidy
+
+    - name: Build
+      run: |
+        mkdir build && cd build
+        cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DBUILD_SHARED_LIBS=1
+        sudo cmake --build . --config Release
+        cd ..
+
+    - name: Check for warnings
+      run: |
+        ./run-clang-tidy.sh build

run-clang-tidy.sh

@@ -0,0 +1,30 @@
+#!/bin/sh 
+
+if [ $# -ne 1 ] || [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
+  echo "$0 <build-path>"
+  exit 1
+fi
+
+BUILD_PATH="$1"
+
+clang-tidy $(find ./arch ./*.c -type f -iregex ".*\.[c]") -p "$BUILD_PATH" -checks=clang-analyzer-*,-clang-analyzer-cplusplus* | tee ct-warnings.txt
+
+tmp=$(mktemp)
+grep ": warning" ct-warnings.txt | grep -oE "^[/a-zA-Z0-9]*\.[ch]" | sort | uniq > $tmp
+top_level=$(git rev-parse --show-toplevel)
+
+echo "\n\n###### REPORT\n\n"
+
+for modified in $(git diff --name-only origin/next); do
+  full_path="$top_level/$modified"
+  if grep -q "$full_path" $tmp; then
+    echo "$full_path as warnings. Please fix them."
+    needs_fixes=1
+  fi
+done
+
+if [ -z $needs_fixes ]; then
+  echo "All good"
+  exit 0
+fi
+exit 1