bot-prevention.yml

name: Check PR Description

on:
  pull_request_target:
    types: [opened, reopened]

permissions:
  pull-requests: write

jobs:
  check-pr-body:
    runs-on: ubuntu-latest
    steps:
      - name: Automatically close modified PR templates
        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
        with:
          script: |
            if (context.payload.pull_request.user.type === "Bot") {
              return;
            }
            const { data: permissionData } = await github.rest.repos.getCollaboratorPermissionLevel({
              owner: context.repo.owner,
              repo: context.repo.repo,
              username: context.payload.pull_request.user.login
            });
            if (permissionData.permission === "write" || permissionData.permission === "admin") {
              return;
            }
            
            const requiredTexts = [
              "The page(s) are in the correct platform directories: `common`, `linux`, `osx`, `windows`, `sunos`, `android`, etc.",
              "The page description(s) have links to documentation or a homepage.",
              "The page(s) follow the [content guidelines](/tldr-pages/tldr/blob/main/CONTRIBUTING.md#guidelines).",
              "The page(s) follow the [style guide](/tldr-pages/tldr/blob/main/contributing-guides/style-guide.md).",
              "The PR contains at most 5 new pages.",
              "The PR is authored by me, or has been human-reviewed if it was created with AI or machine translation software.",
              "The PR title conforms to the recommended [templates](/tldr-pages/tldr/blob/main/CONTRIBUTING.md#commit-message-and-pr-title)."
            ]
            const body = context.payload.pull_request.body || "";

            if (requiredTexts.filter(text => !body.includes(text)).length > 0) {
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: context.payload.pull_request.number,
                body: `This PR was automatically closed due to suspected bot activity.`
              });
              await github.rest.pulls.update({
                owner: context.repo.owner,
                repo: context.repo.repo,
                pull_number: context.payload.pull_request.number,
                state: "closed"
              });
            }