[PATCH 07 of 10] manifest: add unionmanifestlog support

[Durham Goode]

# HG changeset patch
# User Durham Goode <durham at fb.com>
# Date 1478684921 28800
#      Wed Nov 09 01:48:41 2016 -0800
# Node ID 986cd0563b1c95d7a221af9a7eb9742d0e5ad550
# Parent  04ec4875fac7d14c91e82525cc40b8e7084e673a
manifest: add unionmanifestlog support

As part of deprecating manifest, we need to make the union repo support
manifestlog.

diff --git a/mercurial/unionrepo.py b/mercurial/unionrepo.py
--- a/mercurial/unionrepo.py
+++ b/mercurial/unionrepo.py
@@ -152,18 +152,23 @@ class unionchangelog(unionrevlog, change
     def baserevdiff(self, rev1, rev2):
         return changelog.changelog.revdiff(self, rev1, rev2)
 
-class unionmanifest(unionrevlog, manifest.manifest):
+class unionmanifestlog(manifest.manifestlog):
+    def __init__(self, opener, repo, opener2, linkmapper):
+        manifest.manifestlog.__init__(self, opener, repo)
+        self._revlog = unionmanifest(opener, opener2, linkmapper)
+
+class unionmanifest(unionrevlog, manifest.manifestrevlog):
     def __init__(self, opener, opener2, linkmapper):
-        manifest.manifest.__init__(self, opener)
-        manifest2 = manifest.manifest(opener2)
+        manifest.manifestrevlog.__init__(self, opener)
+        manifest2 = manifest.manifestrevlog(opener2)
         unionrevlog.__init__(self, opener, self.indexfile, manifest2,
                              linkmapper)
 
     def baserevision(self, nodeorrev):
-        return manifest.manifest.revision(self, nodeorrev)
+        return manifest.manifestrevlog.revision(self, nodeorrev)
 
     def baserevdiff(self, rev1, rev2):
-        return manifest.manifest.revdiff(self, rev1, rev2)
+        return manifest.manifestrevlog.revdiff(self, rev1, rev2)
 
 class unionfilelog(unionrevlog, filelog.filelog):
     def __init__(self, opener, path, opener2, linkmapper, repo):
@@ -212,6 +217,11 @@ class unionrepository(localrepo.localrep
         return unionmanifest(self.svfs, self.repo2.svfs,
                              self.unfiltered()._clrev)
 
+    @localrepo.unfilteredpropertycache
+    def manifestlog(self):
+        return unionmanifestlog(self.svfs, self, self.repo2.svfs,
+                                self.unfiltered()._clrev)
+
     def url(self):
         return self._url