From 32ea4f542b8e7262b0f03459e2a43963cbb2ab0c Mon Sep 17 00:00:00 2001
From: Andrey Lushnikov <aslushnikov@gmail.com>
Date: Wed, 8 Sep 2021 16:03:16 +0300
Subject: [PATCH] fix: a human-readable error when lock cannot be acquired
 (#8768)

Fixes #8709
---
 src/utils/registry.ts | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/utils/registry.ts b/src/utils/registry.ts
index 5a32fd353f..e26074e7d2 100644
--- a/src/utils/registry.ts
+++ b/src/utils/registry.ts
@@ -562,6 +562,25 @@ export class Registry {
         else
           throw new Error(`ERROR: Playwright does not support installing ${executable.name}`);
       }
+    } catch (e) {
+      if (e.code === 'ELOCKED') {
+        const rmCommand = process.platform === 'win32' ? 'rm -R' : 'rm -rf';
+        throw new Error('\n' + wrapInASCIIBox([
+          `An active lockfile is found at:`,
+          ``,
+          `  ${lockfilePath}`,
+          ``,
+          `Either:`,
+          `- wait a few minutes if other Playwright is installing browsers in parallel`,
+          `- remove lock manually with:`,
+          ``,
+          `    ${rmCommand} ${lockfilePath}`,
+          ``,
+          `<3 Playwright Team`,
+        ].join('\n'), 1));
+      } else {
+        throw e;
+      }
     } finally {
       await releaseLock();
     }