From: Christian Heller <c.heller@plomlompom.de>
Date: Thu, 26 Jan 2017 00:33:48 +0000 (+0100)
Subject: Fix bug occuring when trying to append to non-existant file.
X-Git-Url: https://plomlompom.com/repos/%7B%7B%20web_path%20%7D%7D/%7B%7Bprefix%7D%7D/static/bar%20baz.html?a=commitdiff_plain;h=53f2a78496fe73750f729b3c5e4949e528745b65;p=url-catcher

Fix bug occuring when trying to append to non-existant file.
---

diff --git a/url_catcher.py b/url_catcher.py
index ca0974f..0121896 100755
--- a/url_catcher.py
+++ b/url_catcher.py
@@ -49,7 +49,7 @@ os.makedirs(lists_dir, exist_ok=True)
 def atomic_write(path, content, mode):
     """Atomic write/append to file."""
     _, tmpPath = tempfile.mkstemp()
-    if 'a' == mode:
+    if 'a' == mode and os.path.exists(path):
         shutil.copy2(path, tmpPath)
     f = open(tmpPath, mode)
     f.write(content)