Lists all open bugs in the Angular CLI repo

data.json

{
  "userName": "<github-username>",
  "pat": "<personal-access-token-generated-from-github>"
}

issues.js

// @ts-check

// GitHub has some pretty aggressive rate limiting. Don't run this too many times
// or you may get locked out for over an hour! Include a personal access token
// and username in ./data.json to authenticate the request which raises rate limits.

const fetch = require('node-fetch');
const data = require('./data.json');

(async () => {
  const baseUrl = new URL('https://api.github.com/repos/angular/angular-cli/issues');
  baseUrl.username = data.userName;
  baseUrl.searchParams.set('state', 'open');

  // Use limit(getIssues(...), 10) to debug without exhasusting rate limits.
  for await (const issue of getBugsOrUnlabeled(getIssues(getGitHubIssues(baseUrl)))) {
    console.log(`=HYPERLINK("${issue.html_url}", "#${issue.number}")`);
  }
})().catch((err) => {
  console.error('Fatal error', err);
  process.exit(1);
});

async function* getBugsOrUnlabeled(issues) {
  for await (const issue of issues) {
    const typeLabels = issue.labels.map((label) => label.name)
        .filter((label) => label.startsWith('type:'));
    if (typeLabels.length > 1) {
      yield issue; // Multiple type labels, should triage.
      continue;
    }

    if (typeLabels.length === 0) {
      yield issue; // No type labels, should triage.
      continue;
    }

    const [ typeLabel ] = typeLabels;
    if (typeLabel === 'type: bug/fix') {
      // It's a bug, should triage.
      yield issue;
      continue;
    }

    // Some other type, do not triage.
  }
}

// Does not include PRs
async function* getIssues(githubIssues) {
  for await (const issue of githubIssues) {
    if (!issue.pull_request) yield issue;
  }
}

// Includes PRs
async function* getGitHubIssues(baseUrl) {
  let page = 0;
  while (true) {
    const url = new URL(baseUrl.toString());
    url.searchParams.set('page', page.toString());
    const headers = !data.pat ? {} : {
      'Authorization': `Basic ${data.pat}`,
    };
  
    const res = await fetch(url, { headers });
    const json = await res.json();

    if (json.length === 0) return;
    for (const issue of json) yield issue;
  
    page++;
  }
}

async function* take(items, count) {
  for await (const item of items) {
    if (count <= 0) return;
    yield item;
    count--;
  }
}

package.json

{
  "name": "fixit",
  "version": "1.0.0",
  "description": "",
  "scripts": {
    "start": "node issues.js",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "node-fetch": "2.6.0"
  }
}