From a8bf40c7bf9dd47ede55ce9b2c53f2ddb48b6446 Mon Sep 17 00:00:00 2001
From: Max Bernstein <max@bernsteinbear.com>
Date: Wed, 8 Feb 2023 14:31:20 -0500
Subject: [PATCH] Only sleep between rmtree and mkdir on Windows machines

This makes amalgamate builds slightly faster on non-Windows machines.
---
 amalgamate.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/amalgamate.py b/amalgamate.py
index 57604c97..e2aa8eb6 100644
--- a/amalgamate.py
+++ b/amalgamate.py
@@ -19,7 +19,12 @@ import time
 
 if os.path.exists("amalgamated"):
 	shutil.rmtree("amalgamated")
-	time.sleep(1)
+	if os.name == "nt":
+		# On Windows, making a directory too soon after shutil.rmtree can fail
+		# with PermissionError. Sleep for 1 second as a simple hedge against
+		# this.
+		# See https://stackoverflow.com/a/60181105/569183
+		time.sleep(1)
 os.mkdir("amalgamated")
 
 def remove_copied_include(text):