Fix a minor bug in preprocess_submission #250

	# Automatic code formatting
	name: "format"
	on:
	pull_request:
	branches: [ master ]
	types: [opened, closed, synchronize]


	env:
	python_version: "3.9"

	jobs:
	format-code:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0
	- name: Set up Python ${{ env.python_version }}
	uses: actions/setup-python@v3
	with:
	python-version: ${{ env.python_version }}

	- name: Install dependencies
	run: \|
	python3 -m pip install autopep8

	- name: Grant permissions
	run: \|
	chmod +x "${GITHUB_WORKSPACE}/.github/scripts/format-cpp.sh"
	chmod +x "${GITHUB_WORKSPACE}/.github/scripts/format-py.sh"

	- name: Format Codebase
	run: \|
	git remote add upstream ${{ github.event.pull_request.base.repo.clone_url }}
	git fetch upstream ${{ github.event.pull_request.base.ref }}
	".github/scripts/format-cpp.sh" "upstream" "${{ github.event.pull_request.base.ref }}"
	".github/scripts/format-py.sh" "upstream" "${{ github.event.pull_request.base.ref }}"

	- name: Commit
	run: \|
	HAS_CHANGES=$(git diff --staged --name-only)
	if [ ${#HAS_CHANGES} -gt 0 ]; then
	git checkout -B "${{ github.head_ref }}"
	git config --global user.email "${{ github.actor }}@users.noreply.github.com"
	git config --global user.name "${{ github.actor }}"
	git commit -m '[Automated Commit] Format Codebase'
	git push origin "${{ github.head_ref }}"
	fi

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