async function run()

in index.js [374:451]
70 lines of code
15 McCabe index (conditional complexity)

async function run() {
  core.debug(`action : ${context.action}`);
  core.debug(`ref : ${context.ref}`);
  core.debug(`eventName : ${context.eventName}`);
  core.debug(`actor : ${context.actor}`);
  core.debug(`sha : ${context.sha}`);
  core.debug(`workflow : ${context.workflow}`);
  let { ref } = context;
  let { sha } = context;
  await setEnv();

  let commit = execSync('git log -1 --pretty=format:%B')
    .toString()
    .trim();
  if (github.context.eventName === 'push') {
    const pushPayload = github.context.payload;
    core.debug(`The head commit is: ${pushPayload.head_commit}`);
  } else if (isPullRequestType(github.context.eventName)) {
    const pullRequestPayload = github.context.payload;
    const pr =
      pullRequestPayload.pull_request || pullRequestPayload.pull_request_target;
    core.debug(`head : ${pr.head}`);

    ref = pr.head.ref;
    sha = pr.head.sha;
    core.debug(`The head ref is: ${pr.head.ref}`);
    core.debug(`The head sha is: ${pr.head.sha}`);

    if (octokit) {
      const { data: commitData } = await octokit.git.getCommit({
        ...context.repo,
        commit_sha: sha,
      });
      commit = commitData.message;
      core.debug(`The head commit is: ${commit}`);
    }
  }

  const deploymentUrl = await vercelDeploy(ref, commit);

  if (deploymentUrl) {
    core.info('set preview-url output');
    if (aliasDomains && aliasDomains.length) {
      core.info('set preview-url output as first alias');
      core.setOutput('preview-url', `https://${aliasDomains[0]}`);
    } else {
      core.setOutput('preview-url', deploymentUrl);
    }
  } else {
    core.warning('get preview-url error');
  }

  const deploymentName =
    vercelProjectName || (await vercelInspect(deploymentUrl));
  if (deploymentName) {
    core.info('set preview-name output');
    core.setOutput('preview-name', deploymentName);
  } else {
    core.warning('get preview-name error');
  }

  if (aliasDomains.length) {
    core.info('alias domains to this deployment');
    await aliasDomainsToDeployment(deploymentUrl);
  }

  if (githubComment && githubToken) {
    if (context.issue.number) {
      core.info('this is related issue or pull_request');
      await createCommentOnPullRequest(sha, deploymentUrl, deploymentName);
    } else if (context.eventName === 'push') {
      core.info('this is push event');
      await createCommentOnCommit(sha, deploymentUrl, deploymentName);
    }
  } else {
    core.info('comment : disabled');
  }
}