rebase: track new nodes when --keep is set

When --keep is passed with rebase, the new nodes created are not
accessible from templates.

This change enables accessing the newly-created nodes from nodechanges,
just as if --keep was not set.

Differential Revision: https://phab.mercurial-scm.org/D6880

hgext/rebase.py

@@ -1783,20 +1783,18 b' def clearrebased(ui, repo, destmap, stat'
             oldnode = tonode(rev)
             newnode = collapsedas or tonode(newrev)
             moves[oldnode] = newnode
-            if not keepf:
-                succs = None
-                if rev in skipped:
-                    if stripcleanup or not repo[rev].obsolete():
-                        succs = ()
-                elif collapsedas:
-                    collapsednodes.append(oldnode)
-                else:
-                    succs = (newnode,)
-                if succs is not None:
-                    replacements[(oldnode,)] = succs
+            succs = None
+            if rev in skipped:
+                if stripcleanup or not repo[rev].obsolete():
+                    succs = ()
+            elif collapsedas:
+                collapsednodes.append(oldnode)
+            else:
+                succs = (newnode,)
+            if succs is not None:
+                replacements[(oldnode,)] = succs
     if collapsednodes:
         replacements[tuple(collapsednodes)] = (collapsedas,)
-    scmutil.cleanupnodes(repo, replacements, 'rebase', moves, backup=backup)
     if fm:
         hf = fm.hexfunc
         fl = fm.formatlist
@@ -1807,6 +1805,9 b' def clearrebased(ui, repo, destmap, stat'
                 changes[hf(oldn)] = fl([hf(n) for n in newn], name='node')
         nodechanges = fd(changes, key="oldnode", value="newnodes")
         fm.data(nodechanges=nodechanges)
+    if keepf:
+        replacements = {}
+    scmutil.cleanupnodes(repo, replacements, 'rebase', moves, backup=backup)
 
 def pullrebase(orig, ui, repo, *args, **opts):
     'Call rebase after pull if the latter has been invoked with --rebase'

tests/test-rebase-templates.t

@@ -55,3 +55,30 b' Getting the JSON output for nodechanges'
 
   $ hg rebase -s 6 -d 4 -q -T "{nodechanges % '{oldnode}:{newnodes % ' {node} '}'}"
   d9d6773efc831c274eace04bc13e8e6412517139: f48cd65c6dc3d2acb55da54402a5b029546e546f  (no-eol)
+
+  $ hg log -G -T "{rev}:{node|short} {desc}"
+  o  7:f48cd65c6dc3 Added b
+  |
+  | @  5:df21b32134ba Added d
+  |/
+  o  4:849767420fd5 Added c
+  |
+  o  0:18d04c59bb5d Added a
+  
+
+
+  $ hg rebase -s 7 -d 5 -q --keep -T "{nodechanges % '{oldnode}:{newnodes % ' {node} '}'}"
+  f48cd65c6dc3d2acb55da54402a5b029546e546f: 6f7dda91e55e728fb798f3e44dbecf0ebaa83267  (no-eol)
+
+  $ hg log -G -T "{rev}:{node|short} {desc}"
+  o  8:6f7dda91e55e Added b
+  |
+  | o  7:f48cd65c6dc3 Added b
+  | |
+  @ |  5:df21b32134ba Added d
+  |/
+  o  4:849767420fd5 Added c
+  |
+  o  0:18d04c59bb5d Added a
+  
+