Check for Spammy PRs #4

	name: Check for Spammy PRs

	# What it does: This action closes low value pull requests in the open-source repository.
	# Why we have it: We get lots of spam in the open-source repository.
	# Who does it impact: Open-source contributors.

	on:
	pull_request_target:
	types: [opened]

	permissions:
	contents: read
	pull-requests: write

	jobs:
	spammy-pr-check:
	name: Label PRs that only delete files or touch a large number of files
	if: github.repository == 'github/docs' && github.event_name == 'pull_request_target'
	runs-on: ubuntu-latest
	steps:
	- uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3
	with:
	github-token: ${{ secrets.DOCS_BOT_PAT_BASE }}
	script: \|
	const owner = 'github'
	const repo = 'docs'
	const pull_number = context.payload.pull_request.number

	const { data: files } = await github.rest.pulls.listFiles({
	owner: owner,
	repo: repo,
	pull_number: pull_number,
	});

	const onlyDeletes = files.length > 0 && files.every(f => f.status === 'removed')
	const touchesTooMany = files.length > 10

	// Close the PR and add the invalid label
	if (onlyDeletes \|\| touchesTooMany) {
	await github.rest.issues.update({
	owner: owner,
	repo: repo,
	issue_number: pull_number,
	labels: ['invalid'],
	});

	// Comment on the PR
	await github.rest.issues.createComment({
	owner: owner,
	repo: repo,
	issue_number: pull_number,
	body: `This pull request may have been opened accidentally. I'm going to close it now, but feel free to check out our [contribution guidelines](https://docs.github.com/en/contributing), or raise a new issue.`
	});
	}

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