👷 Add GitHub Actions workflow for automated invitations

.github/workflows/invite.yml

@@ -0,0 +1,21 @@
+name: Invite CI
+on:
+  issues:
+    types: [opened, edited]
+jobs:
+  invite:
+    name: Send invites
+    runs-on: ubuntu-18.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: lts/*
+      - name: Install dependencies
+        uses: bahmutov/npm-install@v1
+      - name: Build TypeScript
+        run: npm run build
+      - name: Run script
+        run: npm run start

.gitignore

@@ -0,0 +1,2 @@
+node_modules
+dist

action.ts

@@ -0,0 +1,71 @@
+import { debug, getInput, setFailed, setOutput } from "@actions/core";
+import { getOctokit } from "@actions/github";
+
+const token =
+  getInput("token") || process.env.GH_PAT || process.env.GITHUB_TOKEN;
+
+export const run = async () => {
+  if (!token) throw new Error("GitHub token not found");
+  const octokit = getOctokit(token);
+  const owner = (process.env.GITHUB_REPOSITORY || "").split("/")[0];
+  const repo = (process.env.GITHUB_REPOSITORY || "").split("/")[1];
+  debug(`Got repo ${owner}/${repo}`);
+
+  const invitations = await octokit.paginate(
+    octokit.rest.orgs.listPendingInvitations,
+    { org: owner }
+  );
+
+  const issues = await octokit.paginate(octokit.rest.issues.listForRepo, {
+    owner,
+    repo,
+    state: "open",
+  });
+  for (const issue of issues) {
+    if (issue.title.toLowerCase().trim() !== "join") {
+      debug(`${issue.number}: Skipped because title is not "Join"`);
+      continue;
+    }
+
+    if (!issue.user) {
+      debug(`${issue.number}: Skipped because no user found`);
+      continue;
+    }
+
+    debug(`${issue.number}: Processing`);
+    if (invitations.find((i) => i.login === (issue.user || {}).login)) {
+      debug(`${issue.number}: Skipped because invitation already sent`);
+      continue;
+    }
+
+    await octokit.rest.orgs.createInvitation({
+      org: owner,
+      invitee_id: issue.user.id,
+    });
+    debug(`${issue.number}: Sent invitation`);
+    await octokit.rest.issues.createComment({
+      owner,
+      repo,
+      issue_number: issue.number,
+      body: `✅🇪🇺 You should receive an invitation to join @eu soon. Welcome!`,
+    });
+    debug(`${issue.number}: Added welcome comment`);
+    await octokit.rest.issues.update({
+      owner,
+      repo,
+      issue_number: issue.number,
+      state: "closed",
+    });
+    debug(`${issue.number}: Closed`);
+  }
+
+  setOutput("issues-count", issues.length);
+  setOutput("invitations-count", invitations.length);
+};
+
+run()
+  .then(() => {})
+  .catch((error) => {
+    console.error("ERROR", error);
+    setFailed(error.message);
+  });