feat: retry on alias creation error (#215)

* feat: retry on alias creation error

* Add short sleep before retrying

index.js

@@ -38,6 +38,23 @@ function slugify(str) {
  return slug;
 }
 
+function retry(fn, retries) {
+ async function attempt(retry) {
+ try {
+ return await fn();
+ } catch (error) {
+ if (retry > retries) {
+ throw error;
+ } else {
+ core.info(`retrying: attempt ${retry + 1} / ${retries + 1}`);
+ await new Promise(resolve => setTimeout(resolve, 3000));
+ return attempt(retry + 1);
+ }
+ }
+ }
+ return attempt(1);
+}
+
 // Vercel
 function getVercelBin() {
  const input = core.getInput('vercel-version');
@@ -341,15 +358,14 @@ async function aliasDomainsToDeployment(deploymentUrl) {
  core.info('using scope');
  args.push('--scope', vercelScope);
  }
- const promises = aliasDomains.map(domain => {
- return exec.exec('npx', [
- vercelBin,
- ...args,
- 'alias',
- deploymentUrl,
- domain,
- ]);
- });
+ const promises = aliasDomains.map(domain =>
+ retry(
+ () =>
+ exec.exec('npx', [vercelBin, ...args, 'alias', deploymentUrl, domain]),
+ 2,
+ ),
+ );
+
  await Promise.all(promises);
 }