Create GitHub Action to automatically run make all

.github/actions/publish/Dockerfile

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+FROM ubuntu:bionic
+
+LABEL "name"="Run make scripts and push changes"
+LABEL "maintainer"="Winston Liu"
+LABEL "version"="0.0.1"
+
+LABEL "com.github.actions.name"="Run make scripts and push changes"
+LABEL "com.github.actions.description"="Run `make all` to post-process all files and then push changes"
+LABEL "com.github.actions.icon"="package"
+LABEL "com.github.actions.color"="green"
+
+RUN apt-get update > /dev/null && apt-get -yqq install git make pandoc astyle source-highlight > /dev/null
+
+COPY entrypoint.sh /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]

.github/actions/publish/entrypoint.sh

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+#!/bin/sh
+
+make all
+
+# Frankly, we don't care about file mode changes
+git config core.filemode false
+
+git add --all
+staged_lines=`git diff --cached --numstat | wc -l`
+if [ "$staged_lines" -eq "0" ]; then
+    exit 0
+fi
+
+git config user.name "Github Actions"
+git config user.email "actions@github.com"
+
+git commit -m "Post-process files"
+
+git push "https://${GITHUB_ACTOR}:${GITHUB_TOKEN}@github.com/${GITHUB_REPOSITORY}" HEAD:master

.github/workflows/main.yml

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+name: Publish
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - uses: ./.github/actions/publish
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}