From d24f2ef021ae193280b8b55c74dc8a4653195299 Mon Sep 17 00:00:00 2001
From: Sam Verschueren <sam.verschueren@gmail.com>
Date: Thu, 10 Jan 2019 11:07:58 +0100
Subject: [PATCH] Import the `fs` module only in Node.js environments (#117)

---
 source/lib/utils/infer-label.ts | 5 ++++-
 source/lib/utils/node/fs.ts     | 4 ++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/source/lib/utils/infer-label.ts b/source/lib/utils/infer-label.ts
index f9a680b..7e149ac 100644
--- a/source/lib/utils/infer-label.ts
+++ b/source/lib/utils/infer-label.ts
@@ -1,4 +1,4 @@
-import fs from './node/fs';
+import lazyFS from './node/fs';
 import {CallSite} from 'callsites';
 import * as isNode from 'is-node';
 import isValidIdentifier from './is-valid-identifier';
@@ -17,6 +17,9 @@ export const inferLabel = (callsites: CallSite[]) => {
 		return;
 	}
 
+	// Load the lazy `fs` module
+	const fs = lazyFS();
+
 	// Grab the stackframe with the `ow` function call
 	const functionCallStackFrame = callsites[1];
 
diff --git a/source/lib/utils/node/fs.ts b/source/lib/utils/node/fs.ts
index c301f8a..81a2bc7 100644
--- a/source/lib/utils/node/fs.ts
+++ b/source/lib/utils/node/fs.ts
@@ -1,4 +1,4 @@
 import nodeRequire from './require';
 
-// Re-export the Node.js `fs` module to make sure it doesn't get bundled with front-end apps
-export default nodeRequire('fs');
+// Re-export the Node.js `fs` module lazily to make sure it doesn't get bundled with front-end apps
+export default () => nodeRequire('fs');