# HG changeset patch
# User Ryan McElroy <rmcelroy@fb.com>
# Date 1490104228 25200
# Node ID fad440db3565eacf176874530a95dc545142d06c
# Parent  bd9daafbf87cb29913846ccb2d523bd60331c9c0
vfs: add tryunlink method

Thoughout hg code, we see a pattern of attempting to remove a file and then
catching and ignoring any errors due to a missing file in the calling code.
Let's unify this pattern in a single implementation in the vfs layer.

diff -r bd9daafbf87c -r fad440db3565 mercurial/vfs.py
--- a/mercurial/vfs.py	Tue Mar 21 06:50:28 2017 -0700
+++ b/mercurial/vfs.py	Tue Mar 21 06:50:28 2017 -0700
@@ -223,6 +223,10 @@
     def unlink(self, path=None):
         return util.unlink(self.join(path))
 
+    def tryunlink(self, path=None):
+        """Attempt to remove a file, ignoring missing file errors."""
+        util.tryunlink(self.join(path))
+
     def unlinkpath(self, path=None, ignoremissing=False):
         return util.unlinkpath(self.join(path), ignoremissing=ignoremissing)