[PATCH 8 of 8] merge: move checking of unknown files out of manifestmerge()

[Martin von Zweigbergk]

# HG changeset patch
# User Martin von Zweigbergk <martinvonz at google.com>
# Date 1418923329 28800
#      Thu Dec 18 09:22:09 2014 -0800
# Node ID 0da4aa055f64bfff381c3b1ac069085c65d41702
# Parent  5fd29e7725ee24e77194b781b701dfc4d1810e9d
merge: move checking of unknown files out of manifestmerge()

This moves most reading of filelogs out of manifestmerge, making it
easy for a narrow clone extension to filter out or translate unwanted
actions before any filelogs are read. The only call left is inside of
copies.mergecopies(), which can be overridden separately at a lower
level.

diff --git a/mercurial/merge.py b/mercurial/merge.py
--- a/mercurial/merge.py
+++ b/mercurial/merge.py
@@ -543,8 +543,6 @@
                 else:
                     actions[f] = ('dc', (fl2,), "prompt deleted/changed")
 
-    _checkunknownfiles(repo, wctx, p2, force, actions)
-
     return actions, diverge, renamedelete
 
 def _resolvetrivial(repo, wctx, mctx, ancestor, actions):
@@ -567,6 +565,7 @@
         actions, diverge, renamedelete = manifestmerge(
             repo, wctx, mctx, ancestors[0], branchmerge, force, partial,
             acceptremote, followcopies)
+        _checkunknownfiles(repo, wctx, mctx, force, actions)
 
     else: # only when merge.preferancestor=* - the default
         repo.ui.note(
@@ -581,6 +580,7 @@
             actions, diverge1, renamedelete1 = manifestmerge(
                 repo, wctx, mctx, ancestor, branchmerge, force, partial,
                 acceptremote, followcopies)
+            _checkunknownfiles(repo, wctx, mctx, force, actions)
             if diverge is None: # and renamedelete is None.
                 # Arbitrarily pick warnings from first iteration
                 diverge = diverge1