From cadbb82712421fec54d8b5295f1e1386af0dd2e1 Mon Sep 17 00:00:00 2001
From: Patrik Oldsberg <poldsberg@gmail.com>
Date: Mon, 18 Mar 2024 16:38:55 +0100
Subject: [PATCH] cli: add experimental lazy compilation flag

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
---
 .changeset/curvy-flies-own.md          | 5 +++++
 packages/cli/src/lib/bundler/config.ts | 3 +++
 2 files changed, 8 insertions(+)
 create mode 100644 .changeset/curvy-flies-own.md

diff --git a/.changeset/curvy-flies-own.md b/.changeset/curvy-flies-own.md
new file mode 100644
index 0000000000..19fcc6bf62
--- /dev/null
+++ b/.changeset/curvy-flies-own.md
@@ -0,0 +1,5 @@
+---
+'@backstage/cli': patch
+---
+
+Added a `EXPERIMENTAL_LAZY_COMPILATION` flag, which enables the experimental Webpack lazy compilation option in frontend builds.
diff --git a/packages/cli/src/lib/bundler/config.ts b/packages/cli/src/lib/bundler/config.ts
index 581ead8575..8245cf61b3 100644
--- a/packages/cli/src/lib/bundler/config.ts
+++ b/packages/cli/src/lib/bundler/config.ts
@@ -224,6 +224,9 @@ export async function createConfig(
           }
         : {}),
     },
+    experiments: {
+      lazyCompilation: yn(process.env.EXPERIMENTAL_LAZY_COMPILATION),
+    },
     plugins,
     ...(withCache
       ? {