From ecc53f0697ff2cee4a252d38d740f6cc798250e3 Mon Sep 17 00:00:00 2001
From: Sven Augustin <sven.augustin@psi.ch>
Date: Tue, 10 May 2022 10:40:53 +0200
Subject: [PATCH] memoize open_script

---
 pier.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pier.py b/pier.py
index 701234f..bf4df3d 100755
--- a/pier.py
+++ b/pier.py
@@ -3,6 +3,7 @@
 from glob import glob
 from io import StringIO
 from contextlib import redirect_stdout, redirect_stderr
+from functools import lru_cache
 
 import http.server
 import socketserver
@@ -49,7 +50,10 @@ def run_script(fn):
         exec(code)
     return sio.getvalue()
 
+@lru_cache()
 def open_script(fn):
+    print("reading", fn)
+    print("_" * 80)
     with open(fn) as f:
         src = f.read()
     code = compile(src, fn, "exec")