Handle transient Prisma deploy connection failures

Author: 403errors

prisma.config.ts

@@ -2,8 +2,10 @@
 import { config } from "dotenv";
 import { defineConfig, env } from "prisma/config";
 
-config({ path: ".env.local" });
-config();
+if (!process.env.VERCEL) {
+  config({ path: ".env.local" });
+  config();
+}
 
 const prismaCliDatabaseUrl = process.env.DIRECT_URL ?? process.env.DATABASE_URL;
 

scripts/prisma-deploy.mjs

@@ -5,6 +5,8 @@ const RETRY_DELAY_MS = Number.parseInt(process.env.PRISMA_DEPLOY_RETRY_DELAY_MS
 
 const advisoryLockTimeoutPattern =
   /P1002|Timed out trying to acquire a postgres advisory lock/i;
+const transientConnectionPattern =
+  /P1001|Can't reach database server|ECONNRESET|ECONNREFUSED|ETIMEDOUT|ENOTFOUND/i;
 
 const sleep = (ms) => new Promise((resolve) => setTimeout(resolve, ms));
 
@@ -28,15 +30,20 @@ for (let attempt = 1; attempt <= MAX_ATTEMPTS; attempt += 1) {
 
   const combinedOutput = `${result.stdout ?? ""}\n${result.stderr ?? ""}`;
   const isAdvisoryLockTimeout = advisoryLockTimeoutPattern.test(combinedOutput);
-  const shouldRetry = isAdvisoryLockTimeout && attempt < MAX_ATTEMPTS;
+  const isTransientConnectionError = transientConnectionPattern.test(combinedOutput);
+  const shouldRetry =
+    (isAdvisoryLockTimeout || isTransientConnectionError) && attempt < MAX_ATTEMPTS;
 
   if (!shouldRetry) {
     process.exit(result.status ?? 1);
   }
 
   const waitSeconds = Math.ceil(RETRY_DELAY_MS / 1000);
+  const reason = isAdvisoryLockTimeout
+    ? "advisory lock timeout"
+    : "temporary database connectivity issue";
   console.warn(
-    `[prisma:deploy] Advisory lock timeout detected (attempt ${attempt}/${MAX_ATTEMPTS}). Retrying in ${waitSeconds}s...`,
+    `[prisma:deploy] ${reason} detected (attempt ${attempt}/${MAX_ATTEMPTS}). Retrying in ${waitSeconds}s...`,
   );
   await sleep(RETRY_DELAY_MS);
 }