transaction: simplify `undo.backupfiles` file creation with a variable
This make the code shorter and clearer.
(This is an opportunity improvement while looking at something next to that.)
Differential Revision: https://phab.mercurial-scm.org/D10846
--- a/mercurial/transaction.py Wed Jun 09 00:59:04 2021 +0200
+++ b/mercurial/transaction.py Wed Jun 09 00:59:44 2021 +0200
@@ -633,9 +633,9 @@
"""write transaction data for possible future undo call"""
if self._undoname is None:
return
- undobackupfile = self._opener.open(
- b"%s.backupfiles" % self._undoname, b'w'
- )
+
+ undo_backup_path = b"%s.backupfiles" % self._undoname
+ undobackupfile = self._opener.open(undo_backup_path, b'w')
undobackupfile.write(b'%d\n' % version)
for l, f, b, c in self._backupentries:
if not f: # temporary file