.github/workflows/llvm-bugs.yml

name: LLVM Bugs notifier

on:
  issues:
    types:
      - opened

jobs:
  auto-subscribe:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/setup-node@v2
        with:
          node-version: 14
      - run: npm install mailgun.js form-data
      - name: Send notification
        uses: actions/github-script@v5
        env:
          MAILGUN_API_KEY: ${{ secrets.LLVM_BUGS_KEY }}
        with:
          script: |
            const Mailgun = require("mailgun.js");
            const formData = require('form-data');
            const mailgun = new Mailgun(formData);

            const DOMAIN = "email.llvm.org";

            const mg = mailgun.client({username: 'api', key: process.env.MAILGUN_API_KEY});

            github.rest.issues.get({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
            })
            .then(function(issue) {
              const payload = {
                author : issue.data.user.login,
                issue  : issue.data.number,
                title  : issue.data.title,
                url    : issue.data.html_url,
                labels : issue.data.labels.map(label => { return label.name }),
                assignee : issue.data.assignees.map(assignee => { return assignee.login }),
                body   : issue.data.body
              };
            
              const data = {
                from: "LLVM Bugs <llvm-bugs@email.llvm.org>",
                to: "llvm-bugs@lists.llvm.org",
                subject: `[Bug ${issue.data.number}] ${issue.data.title}`,
                template: "new-github-issue",
                'h:X-Mailgun-Variables': JSON.stringify(payload)
              };

              return mg.messages.create(DOMAIN, data)
            })
            .then(msg => console.log(msg));