[PATCH 1 of 7] share: use context manager or utility function to write file

[Yuya Nishihara]

# HG changeset patch
# User Yuya Nishihara <yuya at tcha.org>
# Date 1515817396 -32400
#      Sat Jan 13 13:23:16 2018 +0900
# Node ID 2eeaf96c20fce19c8edccf4936aceee4ce651de9
# Parent  991f0be9dc39c402d63a4a8f19cde052095c4689
share: use context manager or utility function to write file

diff --git a/mercurial/hg.py b/mercurial/hg.py
--- a/mercurial/hg.py
+++ b/mercurial/hg.py
@@ -307,16 +307,13 @@ def postshare(sourcerepo, destrepo, book
     """
     default = defaultpath or sourcerepo.ui.config('paths', 'default')
     if default:
-        fp = destrepo.vfs("hgrc", "w", text=True)
-        fp.write("[paths]\n")
-        fp.write("default = %s\n" % default)
-        fp.close()
+        with destrepo.vfs("hgrc", "w", text=True) as fp:
+            fp.write("[paths]\n")
+            fp.write("default = %s\n" % default)
 
     with destrepo.wlock():
         if bookmarks:
-            fp = destrepo.vfs('shared', 'w')
-            fp.write(sharedbookmarks + '\n')
-            fp.close()
+            destrepo.vfs.write('shared', sharedbookmarks + '\n')
 
 def _postshareupdate(repo, update, checkout=None):
     """Maybe perform a working directory update after a shared repo is created.