From 1d5e936aa3f6a16f5bf8e8a4148724c2c7aa1650 Mon Sep 17 00:00:00 2001
From: arnottferels <64685389+arnottferels@users.noreply.github.com>
Date: Fri, 31 Jan 2025 17:58:31 +0700
Subject: [PATCH] Support overriding copyLibFiles.dest in stro:build:done hook
 with lib option, defaulting to ~partytown. Remove leading '/' to match
 ileURLToPath.

---
 .changeset/plenty-coins-destroy.md           | 18 ++++++++++++++++++
 packages/integrations/partytown/src/index.ts |  3 ++-
 2 files changed, 20 insertions(+), 1 deletion(-)
 create mode 100644 .changeset/plenty-coins-destroy.md

diff --git a/.changeset/plenty-coins-destroy.md b/.changeset/plenty-coins-destroy.md
new file mode 100644
index 000000000000..cff4f57098d0
--- /dev/null
+++ b/.changeset/plenty-coins-destroy.md
@@ -0,0 +1,18 @@
+---
+'@astrojs/partytown': patch
+---
+
+Adds support for overriding `copyLibFiles.dest` in the `astro:build:done` hook using the `lib` option in `astro.config.*`, if provided. If not specified, it falls back to the default `~partytown`. Also removes the leading "/" from the `lib` value to match the behavior of `fileURLToPath`.
+
+Example:
+
+```typescript
+// Options in `astro.config.*`
+partytown.config.lib = '/assets/lib/~partytown/';
+
+// `astro:build:done` in `@astrojs/partytown` integration
+copyLibFiles.dest =
+  partytown.config.lib ?
+    `${PROJECT_ROOT}/assets/lib/~partytown/` // Leading "/" removed to match `fileURLToPath` behavior
+  : '~partytown'; // Default fallback
+``` 
\ No newline at end of file
diff --git a/packages/integrations/partytown/src/index.ts b/packages/integrations/partytown/src/index.ts
index f2ffbfea42c9..126cef5643ff 100644
--- a/packages/integrations/partytown/src/index.ts
+++ b/packages/integrations/partytown/src/index.ts
@@ -48,7 +48,8 @@ export default function createPlugin(options?: PartytownOptions): AstroIntegrati
 				);
 			},
 			'astro:build:done': async ({ dir }) => {
-				await copyLibFiles(fileURLToPath(new URL('~partytown', dir)), {
+				let libValue = options?.config?.lib?.replace(/^\/?/, '');
+				await copyLibFiles(fileURLToPath(new URL(libValue || '~partytown', dir)), {
 					debugDir: options?.config?.debug ?? false,
 				});
 			},