# HG changeset patch
# User Gregory Szorc <gregory.szorc@gmail.com>
# Date 1451776198 28800
# Node ID 14f5ea7cc4c23a549be95a53a7f3b18d6eea2512
# Parent  22e362da27cfca1d060e17c5bc7c04b300385f9f
streamclone: use context manager for writing files

These are the file writes that have the most to gain from background
I/O. Plug in a context manager so I can design the background I/O
mechanism with context managers in mind.

diff -r 22e362da27cf -r 14f5ea7cc4c2 mercurial/streamclone.py
--- a/mercurial/streamclone.py	Sat Jan 02 15:19:47 2016 -0800
+++ b/mercurial/streamclone.py	Sat Jan 02 15:09:58 2016 -0800
@@ -319,12 +319,12 @@
                     repo.ui.debug('adding %s (%s)\n' %
                                   (name, util.bytecount(size)))
                 # for backwards compat, name was partially encoded
-                ofp = repo.svfs(store.decodedir(name), 'w')
-                for chunk in util.filechunkiter(fp, limit=size):
-                    handled_bytes += len(chunk)
-                    repo.ui.progress(_('clone'), handled_bytes, total=bytecount)
-                    ofp.write(chunk)
-                ofp.close()
+                with repo.svfs(store.decodedir(name), 'w') as ofp:
+                    for chunk in util.filechunkiter(fp, limit=size):
+                        handled_bytes += len(chunk)
+                        repo.ui.progress(_('clone'), handled_bytes,
+                                         total=bytecount)
+                        ofp.write(chunk)
             tr.close()
         finally:
             tr.release()