7/10 Homework #13

	name: PR Check

	on:
	pull_request:
	branches: [ main ]

	jobs:
	check-pr:
	runs-on: ubuntu-latest

	steps:
	- name: Set up Node.js
	uses: actions/setup-node@v2
	with:
	node-version: '18.x'

	- name: Checkout
	uses: actions/checkout@v2

	- name: Check User Role
	id: check-role
	run: \|
	GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}
	GITHUB_USER="${{ github.actor }}"
	REPO="${{ github.repository }}"
	ROLE=$(curl -H "Authorization: token $GITHUB_TOKEN" \
	-H "Accept: application/vnd.github.v3+json" \
	"https://api.github.com/repos/$REPO/collaborators/$GITHUB_USER/permission" \
	\| jq -r '.permission')
	echo "User role: $ROLE"
	echo "ROLE=$ROLE" >> $GITHUB_ENV
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

	- name: Check PR for Members
	if: env.ROLE != 'admin' && env.ROLE != 'write'
	run: \|
	GITHUB_USER="${{ github.actor }}"
	MEMBER_DIR="./members/$GITHUB_USER"

	if [ -d "$MEMBER_DIR" ]; then
	echo "Member directory exists."

	MODIFIED_FILES=$(git diff --name-only origin/main...$GITHUB_SHA)
	for FILE in $MODIFIED_FILES; do
	if [[ $FILE != $MEMBER_DIR/* ]]; then
	echo "::error::You can only modify files in your own directory: $MEMBER_DIR"
	exit 1
	fi
	done
	else
	echo "Member directory does not exist."

	if git diff --name-only origin/main...$GITHUB_SHA \| grep -q "^$MEMBER_DIR/"; then
	PR_TITLE=$(jq -r ".pull_request.title" "$GITHUB_EVENT_PATH")
	if [ "$PR_TITLE" != "Hello, Star Trek!" ]; then
	echo "::error::For new member, the PR title must be 'Hello, Star Trek!'"
	exit 1
	fi
	else
	echo "::error::You must add a new directory with your username."
	exit 1
	fi

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