[CI] Add uncrustify script and action

.github/workflows/uncrustify.yml

@@ -0,0 +1,43 @@
+name: "Uncrustify"
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+  workflow_dispatch:
+
+jobs:
+  check:
+    name: Run format check using uncrustify
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Install uncrustify
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y cmake
+        mkdir -p ~/uncrustify
+        cd ~/uncrustify
+        git clone https://github.com/uncrustify/uncrustify.git
+        cd uncrustify
+        git checkout uncrustify-0.78.1
+        mkdir -p build
+        cd build
+        cmake -DCMAKE_BUILD_TYPE=Release ..
+        make
+        sudo make install
+
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Run uncrustify
+      run: ./extras/uncrustify/uncrustify.sh
+
+    - name: Upload patch file as artifact
+      if: always()
+      uses: actions/upload-artifact@v4
+      with:
+        name: uncrustify.patch
+        path: extras/uncrustify/uncrustify.patch
+        if-no-files-found: ignore

extras/uncrustify/.gitignore

@@ -0,0 +1 @@
+uncrustify.patch

extras/uncrustify/uncrustify.sh

@@ -0,0 +1,26 @@
+#! /bin/bash
+
+script_dir=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+out_file=$script_dir/uncrustify.patch
+rm $out_file
+
+echo "Checking with $(uncrustify -v)"
+
+# for all soruce files, run uncrustify and save the output to a patch file
+for file in $(find src/ -name '*.cpp' -or -name '*.h'); do 
+    uncrustify -c $script_dir/uncrustify.cfg -f $file -o $file.uncrustify
+    diff -u $file $file.uncrustify >> $out_file
+    rm $file.uncrustify
+done
+
+cat $out_file
+
+if [ -s $out_file ]; then
+    echo "Uncrustify finished and found some issues"
+    echo "Apply the patch file by: 'cd src && git apply $out_file'"
+    exit 1
+else
+    echo "Uncrustify finished - all OK!"
+    exit 0
+fi
+