# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 1521675988 25200
# Node ID b7823bd59b078bfdf7ce9c208a4f9e3d470fa5c0
# Parent  236af7cfa4c3dfe358ec4f0f4f1c9590298a200c
cleanupnodes: trust caller when "moves" is not None

If "moves" (indicating how to move bookmarks) is None, we fill it out
based on "replacements" (indicating which obsmarkers to add). If
"moves" is not None, we would still add items based on
"replacements". This makes it impossible to pass "moves={}" and not
move bookmarks, which surprised me. The only caller that currently
passes a value for "moves" was the rebase extension and there we were
already adding bookmark moves corresponding to obsmarker additions, so
it should not be impacted.

Differential Revision: https://phab.mercurial-scm.org/D5391

diff -r 236af7cfa4c3 -r b7823bd59b07 mercurial/scmutil.py
--- a/mercurial/scmutil.py	Wed Dec 05 14:17:15 2018 -0800
+++ b/mercurial/scmutil.py	Wed Mar 21 16:46:28 2018 -0700
@@ -901,32 +901,33 @@
             repls[key] = value
         replacements = repls
 
+    # Unfiltered repo is needed since nodes in replacements might be hidden.
+    unfi = repo.unfiltered()
+
     # Calculate bookmark movements
     if moves is None:
         moves = {}
-    # Unfiltered repo is needed since nodes in replacements might be hidden.
-    unfi = repo.unfiltered()
-    for oldnodes, newnodes in replacements.items():
-        for oldnode in oldnodes:
-            if oldnode in moves:
-                continue
-            if len(newnodes) > 1:
-                # usually a split, take the one with biggest rev number
-                newnode = next(unfi.set('max(%ln)', newnodes)).node()
-            elif len(newnodes) == 0:
-                # move bookmark backwards
-                allreplaced = []
-                for rep in replacements:
-                    allreplaced.extend(rep)
-                roots = list(unfi.set('max((::%n) - %ln)', oldnode,
-                                      allreplaced))
-                if roots:
-                    newnode = roots[0].node()
+        for oldnodes, newnodes in replacements.items():
+            for oldnode in oldnodes:
+                if oldnode in moves:
+                    continue
+                if len(newnodes) > 1:
+                    # usually a split, take the one with biggest rev number
+                    newnode = next(unfi.set('max(%ln)', newnodes)).node()
+                elif len(newnodes) == 0:
+                    # move bookmark backwards
+                    allreplaced = []
+                    for rep in replacements:
+                        allreplaced.extend(rep)
+                    roots = list(unfi.set('max((::%n) - %ln)', oldnode,
+                                          allreplaced))
+                    if roots:
+                        newnode = roots[0].node()
+                    else:
+                        newnode = nullid
                 else:
-                    newnode = nullid
-            else:
-                newnode = newnodes[0]
-            moves[oldnode] = newnode
+                    newnode = newnodes[0]
+                moves[oldnode] = newnode
 
     allnewnodes = [n for ns in replacements.values() for n in ns]
     toretract = {}