# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 1497657376 25200
# Node ID 3e102a8dd52c1f16f9b9f153e6d7e1fb66bfb35b
# Parent  b482d80e041bb99fb513370f80f00591f9f79c54
bundle2: record changegroup data in 'op.records' (API)

When adding support for bundling and unbundling phases, it will be
useful to have the list of added changesets. To do that, we return the
list from changegroup.apply().

diff --git a/mercurial/bundle2.py b/mercurial/bundle2.py
--- a/mercurial/bundle2.py
+++ b/mercurial/bundle2.py
@@ -1492,9 +1492,12 @@
         op.repo.requirements.add('treemanifest')
         op.repo._applyopenerreqs()
         op.repo._writerequirements()
-    ret = cg.apply(op.repo, tr, 'bundle2', 'bundle2',
-                   expectedtotal=nbchangesets)
-    op.records.add('changegroup', {'return': ret})
+    ret, addednodes = cg.apply(op.repo, tr, 'bundle2', 'bundle2',
+                               expectedtotal=nbchangesets)
+    op.records.add('changegroup', {
+        'return': ret,
+        'addednodes': addednodes,
+    })
     if op.reply is not None:
         # This is definitely not the final form of this
         # return. But one need to start somewhere.
@@ -1557,8 +1560,11 @@
     if not isinstance(cg, changegroup.cg1unpacker):
         raise error.Abort(_('%s: not a bundle version 1.0') %
             util.hidepassword(raw_url))
-    ret = cg.apply(op.repo, tr, 'bundle2', 'bundle2')
-    op.records.add('changegroup', {'return': ret})
+    ret, addednodes = cg.apply(op.repo, tr, 'bundle2', 'bundle2')
+    op.records.add('changegroup', {
+        'return': ret,
+        'addednodes': addednodes,
+    })
     if op.reply is not None:
         # This is definitely not the final form of this
         # return. But one need to start somewhere.
diff --git a/mercurial/changegroup.py b/mercurial/changegroup.py
--- a/mercurial/changegroup.py
+++ b/mercurial/changegroup.py
@@ -426,9 +426,10 @@
             repo.ui.flush()
         # never return 0 here:
         if deltaheads < 0:
-            return deltaheads - 1
+            ret = deltaheads - 1
         else:
-            return deltaheads + 1
+            ret = deltaheads + 1
+        return ret, added
 
 class cg2unpacker(cg1unpacker):
     """Unpacker for cg2 streams.
diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -5218,7 +5218,7 @@
             else:
                 txnname = 'unbundle\n%s' % util.hidepassword(url)
                 with repo.transaction(txnname) as tr:
-                    modheads = gen.apply(repo, tr, 'unbundle', url)
+                    modheads, addednodes = gen.apply(repo, tr, 'unbundle', url)
 
     return postincoming(ui, repo, modheads, opts.get(r'update'), None, None)
 
diff --git a/mercurial/exchange.py b/mercurial/exchange.py
--- a/mercurial/exchange.py
+++ b/mercurial/exchange.py
@@ -1449,7 +1449,8 @@
                            "changegroupsubset."))
     else:
         cg = pullop.remote.changegroupsubset(pullop.fetch, pullop.heads, 'pull')
-    pullop.cgresult = cg.apply(pullop.repo, tr, 'pull', pullop.remote.url())
+    pullop.cgresult, addednodes = cg.apply(pullop.repo, tr, 'pull',
+                                           pullop.remote.url())
 
 def _pullphase(pullop):
     # Get remote phases data from remote
@@ -1737,7 +1738,7 @@
             # legacy case: bundle1 (changegroup 01)
             txnname = "\n".join([source, util.hidepassword(url)])
             with repo.lock(), repo.transaction(txnname) as tr:
-                r = cg.apply(repo, tr, source, url)
+                r, addednodes = cg.apply(repo, tr, source, url)
         else:
             r = None
             try: