From 8d07a8b038269cba0485cf03dbf2887e7af1f63a Mon Sep 17 00:00:00 2001
From: Tim Hansen <timbonicus@gmail.com>
Date: Thu, 12 Aug 2021 13:37:58 -0600
Subject: [PATCH] webpack5: add Buffer plugin

Signed-off-by: Tim Hansen <timbonicus@gmail.com>
---
 .changeset/ninety-ducks-relate.md      | 5 +++++
 packages/cli/src/lib/bundler/config.ts | 1 +
 2 files changed, 6 insertions(+)
 create mode 100644 .changeset/ninety-ducks-relate.md

diff --git a/.changeset/ninety-ducks-relate.md b/.changeset/ninety-ducks-relate.md
new file mode 100644
index 0000000000..2901efaea5
--- /dev/null
+++ b/.changeset/ninety-ducks-relate.md
@@ -0,0 +1,5 @@
+---
+'@backstage/cli': patch
+---
+
+Add Buffer to `ProvidePlugin` since this is no longer provided in `webpack@5`
diff --git a/packages/cli/src/lib/bundler/config.ts b/packages/cli/src/lib/bundler/config.ts
index f749c70ed2..c9e858a31c 100644
--- a/packages/cli/src/lib/bundler/config.ts
+++ b/packages/cli/src/lib/bundler/config.ts
@@ -119,6 +119,7 @@ export async function createConfig(
   plugins.push(
     new ProvidePlugin({
       process: 'process/browser',
+      Buffer: ['buffer', 'Buffer'],
     }),
   );