Function getBuildspecContentJson

ci/src/build-handler/index.mjs:242–301

* Hits the GitHub repot contents API to determine if the commit that triggered * event supports the PRX CI system by looking for a buildspec.yml file * https://docs.github.com/en/free-pro-team@latest/rest/reference/repos#contents * @param {GitHubPullRequestWebhookPayload|GitHubPushWebhookPayload}

(event)

 * @returns {Promise<string|false>} The JSON response
 */
function getBuildspecContentJson(event) {
  return new Promise((resolve, reject) => {
    console.log('Getting buildspec contents');

    // Get request properties
    const repo = event.repository.full_name;
    const path = 'buildspec.yml';
    const ref = eventIsPullRequest(event)
      ? event.pull_request.head.sha
      : event.after;

    // Setup request options
    const options = {
      host: 'api.github.com',
      path: `/repos/${repo}/contents/${path}?ref=${ref}`,
      method: 'GET',
      headers: GITHUB_HEADERS,
    };

    options.headers['Content-Length'] = Buffer.byteLength('');

    // Request with response handler
    console.log(`Calling contents API: ${options.path}`);
    const req = request(options, (res) => {
      res.setEncoding('utf8');

      let json = '';
      res.on('data', (chunk) => {
        console.log(chunk);
        json += chunk;
      });
      res.on('end', () => {
        switch (res.statusCode) {
          case 200:
            console.log('Found CodeBuild support');
            resolve(json);
            break;
          case 404:
            console.log('No CodeBuild support!');
            resolve(false);
            break;
          default:
            console.error(`Request failed ${res.statusCode}!`);
            console.error(json);
            reject(new Error('Contents request failed!'));
        }
      });
    });

    req.setTimeout(1000, () => {
      console.log('========= request timed out');
    });

    // Generic request error handling
    req.on('error', (e) => reject(e));

    req.write('');
    req.end();