From patchwork Thu Sep  5 20:07:01 2013
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Subject: [07, of, 48,
 RFC] commitablectx: add a class that will be used as a parent of
 mutable contexts
From: Sean Farley <sean.michael.farley@gmail.com>
X-Patchwork-Id: 2345
Message-Id: <6add45ab8921d649e279.1378411621@laptop.local>
To: mercurial-devel@selenic.com
Date: Thu, 05 Sep 2013 15:07:01 -0500

# HG changeset patch
# User Sean Farley <sean.michael.farley@gmail.com>
# Date 1376510528 18000
#      Wed Aug 14 15:02:08 2013 -0500
# Node ID 6add45ab8921d649e279bf3f0fc4af22fc97450c
# Parent  7fa9dbb4d6ea9ac15c8ec0e9631bc9f626034a34
commitablectx: add a class that will be used as a parent of mutable contexts

Currently, we have basectx that serves as a common ancestor of all contexts. We
will now add a new class commitablectx that will inherit from basectx and will
serve as a common place for code that will be shared between mutable contexts,
e.g. workingctx and memctx.

diff --git a/mercurial/context.py b/mercurial/context.py
--- a/mercurial/context.py
+++ b/mercurial/context.py
@@ -819,11 +819,18 @@
         # hard for renames
         c = self._filelog.children(self._filenode)
         return [filectx(self._repo, self._path, fileid=x,
                         filelog=self._filelog) for x in c]
 
-class workingctx(basectx):
+class commitablectx(basectx):
+    """A commitablectx object provides common functionality for a context that
+    wants the ability to commit, e.g. workingctx or memctx."""
+    def __init__(self, repo, text="", user=None, date=None, extra=None,
+                 changes=None):
+        pass
+
+class workingctx(commitablectx):
     """A workingctx object makes access to data related to
     the current working directory convenient.
     date - any valid date string or (unixtime, offset), or None.
     user - username string, or None.
     extra - a dictionary of extra values, or None.