widening: pass in matchers instead of patterns

This matches how it's done for the non-ellipsis case. The oldmatch is
not used yet, but it should be used eventually when widening no longer
resends manifests and files the client already has.

Differential Revision: https://phab.mercurial-scm.org/D7099

hgext/narrow/narrowbundle2.py

@@ -112,20 +112,8 b' def generateellipsesbundle2('
 
 
 def generate_ellipses_bundle2_for_widening(
-    bundler,
-    repo,
-    oldinclude,
-    oldexclude,
-    newinclude,
-    newexclude,
-    version,
-    common,
-    known,
+    bundler, repo, oldmatch, newmatch, version, common, known,
 ):
-    newmatch = narrowspec.match(
-        repo.root, include=newinclude, exclude=newexclude
-    )
-
     common = set(common or [nullid])
     # Steps:
     # 1. Send kill for "$known & ::common"

hgext/narrow/narrowwirepeer.py

@@ -102,13 +102,13 b' def narrow_widen('
         cgversion = cgversion
 
         bundler = bundle2.bundle20(repo.ui)
-        if not ellipses:
             newmatch = narrowspec.match(
                 repo.root, include=newincludes, exclude=newexcludes
             )
             oldmatch = narrowspec.match(
                 repo.root, include=oldincludes, exclude=oldexcludes
             )
+        if not ellipses:
             bundle2.widen_bundle(
                 bundler,
                 repo,
@@ -121,15 +121,7 b' def narrow_widen('
             )
         else:
             narrowbundle2.generate_ellipses_bundle2_for_widening(
-                bundler,
-                repo,
-                oldincludes,
-                oldexcludes,
-                newincludes,
-                newexcludes,
-                cgversion,
-                common,
-                known,
+                bundler, repo, oldmatch, newmatch, cgversion, common, known,
             )
     except error.Abort as exc:
         bundler = bundle2.bundle20(repo.ui)