pullbundles: use unfiltered repo for head/base matching

The unfiltered view works even when changeset transistion from draft to
hidden phase. The normal visibility is already ensured by discovery as
invisible heads would have been filtered out before. Skipping the
filtering has a positive impact on performance, too.

Differential Revision: https://phab.mercurial-scm.org/D8481

mercurial/wireprotov1server.py

@@ -391,7 +391,7 b' def find_pullbundle(repo, proto, opts, c'
     res = exchange.filterclonebundleentries(repo, res)
     if not res:
         return None
-    cl = repo.changelog
+    cl = repo.unfiltered().changelog
     heads_anc = cl.ancestors([cl.rev(rev) for rev in heads], inclusive=True)
     common_anc = cl.ancestors([cl.rev(rev) for rev in common], inclusive=True)
     compformats = clientcompressionsupport(proto)

tests/test-pull-bundle.t

@@ -36,6 +36,8 b' Test pullbundle functionality'
   $ cat <<EOF > .hg/hgrc
   > [server]
   > pullbundle = True
+  > [experimental]
+  > evolution = True
   > [extensions]
   > blackbox =
   > EOF
@@ -185,3 +187,24 b' Test recovery from misconfigured server '
   * sending pullbundle "0.hg" (glob)
   * sending pullbundle "0.hg" (glob)
   $ rm repo/.hg/blackbox.log
+
+Test processing when nodes used in the pullbundle.manifest end up being hidden
+
+  $ hg --repo repo debugobsolete ed1b79f46b9a29f5a6efa59cf12fcfca43bead5a
+  1 new obsolescence markers
+  obsoleted 1 changesets
+  $ hg serve --repo repo --config server.view=visible -p $HGPORT -d --pid-file=hg.pid -E errors.log
+  $ cat hg.pid >> $DAEMON_PIDS
+  $ hg clone http://localhost:$HGPORT repo-obs
+  requesting all changes
+  adding changesets
+  adding manifests
+  adding file changes
+  adding changesets
+  adding manifests
+  adding file changes
+  added 2 changesets with 2 changes to 2 files
+  new changesets bbd179dfa0a7:effea6de0384
+  updating to branch default
+  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ killdaemons.py