# HG changeset patch
# User Ryan McElroy <rmcelroy@fb.com>
# Date 1490104228 25200
# Node ID 6d5b77abf306d83662379389618319fcbf0b91ec
# Parent  52361c4f4dac969251077472c0dfc9561704b32a
util: add tryunlink function

Throughout mercurial cdoe, there is a common pattern of attempting to remove
a file and ignoring ENOENT errors. Let's move this into a common function to
allow for cleaner code.

diff -r 52361c4f4dac -r 6d5b77abf306 mercurial/util.py
--- a/mercurial/util.py	Tue Mar 21 06:50:28 2017 -0700
+++ b/mercurial/util.py	Tue Mar 21 06:50:28 2017 -0700
@@ -1617,6 +1617,14 @@
     except OSError:
         pass
 
+def tryunlink(f):
+    """Attempt to remove a file, ignoring ENOENT errors."""
+    try:
+        unlink(f)
+    except OSError as e:
+        if e.errno != errno.ENOENT:
+            raise
+
 def makedirs(name, mode=None, notindexed=False):
     """recursive directory creation with parent mode inheritance