Sets up a simple lint & build CI with GitHub Actions

.github/actions/build/Dockerfile

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+FROM debian:stable-slim
+
+RUN apt-get update && \
+  apt-get -y install wget tar unzip make clang-format gcc-arm-none-eabi
+
+RUN cd /opt && \
+  wget https://www.nordicsemi.com/-/media/Software-and-other-downloads/SDKs/nRF5/Binaries/nRF5SDK1702d674dde.zip -O nRF5_SDK.zip && \
+  unzip nRF5_SDK.zip && \
+  mv nRF5_SDK_17.0.2_d674dde nRF5_SDK
+
+COPY build.sh /build.sh
+
+ENTRYPOINT ["/build.sh"]

.github/actions/build/action.yml

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+name: 'Build'
+description: 'Builds b-parasite firmware'
+runs:
+  using: 'docker'
+  image: 'Dockerfile'

.github/actions/build/build.sh

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+#!/bin/bash
+set -eux -o pipefail
+
+export SDK_ROOT=/opt/nRF5_SDK
+export GNU_INSTALL_ROOT=/usr/bin/
+
+cd "$GITHUB_WORKSPACE/code/b-parasite"
+make clean
+make lint
+make

.github/workflows/b-parasite.yml

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+name: b-parasite firmware build
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: Checks format & builds b-parasite's firmware
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Build
+        uses: ./.github/actions/build