build: use GitHub actions to check code-style (#3138)

.github/workflows/code-style.yml

@@ -0,0 +1,22 @@
+name: Code Style
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+jobs:
+  formatting-check:
+    name: Formatting Check
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install Dependencies
+        run: |
+          sudo apt-get install clang-format-12 npm yarn
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          submodules: recursive
+      - name: Check
+        working-directory: .
+        run: |
+          ./code_style.sh --check

README.md

@@ -75,12 +75,7 @@ If you're new to building programs from source code, this is typically easier th
 
 You would want to setup your editor to make use of the .clang-format file located in the root of this repository and the eslint/prettier rules in web/package.json.
 
-If for some reason you are unwilling or unable to do so, there is a shell script which you could run either directly or via docker-compose:
-
-    $ ./code_style.sh
-    or
-    $ docker-compose build --pull
-    $ docker-compose run --rm code_style
+If for some reason you are unwilling or unable to do so, there is a shell script which you can use: `./code_style.sh`
 
 ## Sponsors
 

docker-compose.yml

@@ -1,13 +0,0 @@
-version: '3'
-
-services:
-  code_style:
-    build: docker/code_style
-    volumes:
-    - .:/src
-    working_dir: /src
-    command:
-    - ./code_style.sh
-    - --check
-    environment:
-      HOME: /tmp

docker/code_style/Dockerfile

@@ -1,20 +0,0 @@
-FROM mikedld/clang-format:12-debian AS clang_format
-
-FROM debian:bullseye-slim AS final
-
-RUN apt-get update \
-    && apt-get install -y --no-install-recommends \
-        ca-certificates \
-        curl \
-        gnupg2 \
-    && curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - \
-    && echo "deb https://dl.yarnpkg.com/debian/ stable main" >> /etc/apt/sources.list.d/yarn.list \
-    && apt-get update \
-    && apt-get install -y --no-install-recommends \
-        bash \
-        nodejs \
-        perl \
-        yarn \
-    && rm -rf /var/lib/apt/lists/*
-
-COPY --from=clang_format /usr/bin/clang-format /usr/bin/