sparse: move post commit actions into core

Instead of wrapping committablectx.markcommitted(), we inline
the call into workingctx.markcommitted().

Per smf's review, workingctx is the proper location for this
code, as committablectx is the shared base class for it and
memctx. Since this code touches the working directory, it belongs
in workingctx.

hgext/sparse.py

@@ -79,7 +79,6 b' from mercurial.node import nullid'
 from mercurial import (
     cmdutil,
     commands,
-    context,
     dirstate,
     error,
     extensions,
@@ -100,9 +99,6 b" testedwith = 'ships-with-hg-core'"
 cmdtable = {}
 command = registrar.command(cmdtable)
 
-def uisetup(ui):
-    _setupcommit(ui)
-
 def extsetup(ui):
     sparse.enabled = True
 
@@ -134,27 +130,6 b' def replacefilecache(cls, propname, repl'
         raise AttributeError(_("type '%s' has no property '%s'") % (origcls,
                              propname))
 
-def _setupcommit(ui):
-    def _refreshoncommit(orig, self, node):
-        """Refresh the checkout when commits touch .hgsparse
-        """
-        orig(self, node)
-        repo = self._repo
-
-        ctx = repo[node]
-        profiles = sparse.patternsforrev(repo, ctx.rev())[2]
-
-        # profiles will only have data if sparse is enabled.
-        if set(profiles) & set(ctx.files()):
-            origstatus = repo.status()
-            origsparsematch = sparse.matcher(repo)
-            sparse.refreshwdir(repo, origstatus, origsparsematch, force=True)
-
-        sparse.prunetemporaryincludes(repo)
-
-    extensions.wrapfunction(context.committablectx, 'markcommitted',
-        _refreshoncommit)
-
 def _setuplog(ui):
     entry = commands.table['^log|history']
     entry[1].append(('', 'sparse', None,

mercurial/context.py

@@ -38,6 +38,7 b' from . import ('
     repoview,
     revlog,
     scmutil,
+    sparse,
     subrepo,
     util,
 )
@@ -1803,6 +1804,11 b' class workingctx(committablectx):'
             match.bad = bad
         return match
 
+    def markcommitted(self, node):
+        super(workingctx, self).markcommitted(node)
+
+        sparse.aftercommit(self._repo, node)
+
 class committablefilectx(basefilectx):
     """A committablefilectx provides common functionality for a file context
     that wants the ability to commit, e.g. workingfilectx or memfilectx."""

mercurial/sparse.py

@@ -478,3 +478,19 b' def refreshwdir(repo, origstatus, origsp'
         dirstate.normallookup(file)
 
     return added, dropped, lookup
+
+def aftercommit(repo, node):
+    """Perform actions after a working directory commit."""
+    # This function is called unconditionally, even if sparse isn't
+    # enabled.
+    ctx = repo[node]
+
+    profiles = patternsforrev(repo, ctx.rev())[2]
+
+    # profiles will only have data if sparse is enabled.
+    if set(profiles) & set(ctx.files()):
+        origstatus = repo.status()
+        origsparsematch = matcher(repo)
+        refreshwdir(repo, origstatus, origsparsematch, force=True)
+
+    prunetemporaryincludes(repo)