addchangegroup: get the `node` argument of `incoming` hook from transaction

The transaction is now carrying hook-related informations. So we use it to
retrieve the `node` argument. This will also carry around all kinds of other useful
informations (like: "are we in a bundle2 processing")

mercurial/changegroup.py

@@ -742,8 +742,9 b' def addchangegroup(repo, source, srctype'
                           **hookargs)
 
                 for n in added:
-                    repo.hook("incoming", node=hex(n), source=srctype,
-                              url=url)
+                    args = hookargs.copy()
+                    args['node'] = hex(n)
+                    repo.hook("incoming", source=srctype, url=url, **args)
 
                 newheads = [h for h in repo.heads() if h not in oldheads]
                 repo.ui.log("incoming",

tests/test-bundle2-multiple-changegroups.t

@@ -92,7 +92,7 b' Pull the new commits in the clone'
   changegroup hook: HG_NODE=27547f69f25460a52fff66ad004e58da7ad3fb56 HG_SOURCE=bundle2 HG_URL=bundle2
   incoming hook: HG_NODE=27547f69f25460a52fff66ad004e58da7ad3fb56 HG_SOURCE=bundle2 HG_URL=bundle2
   changegroup hook: HG_NODE=f838bfaca5c7226600ebcfd84f3c3c13a28d3757 HG_PHASES_MOVED=1 HG_SOURCE=bundle2 HG_URL=bundle2
-  incoming hook: HG_NODE=f838bfaca5c7226600ebcfd84f3c3c13a28d3757 HG_SOURCE=bundle2 HG_URL=bundle2
+  incoming hook: HG_NODE=f838bfaca5c7226600ebcfd84f3c3c13a28d3757 HG_PHASES_MOVED=1 HG_SOURCE=bundle2 HG_URL=bundle2
   pullop.cgresult is 1
   (run 'hg update' to get a working copy)
   $ hg update
@@ -163,9 +163,9 b' pullop.cgresult'
   incoming hook: HG_NODE=b3325c91a4d916bcc4cdc83ea3fe4ece46a42f6e HG_SOURCE=bundle2 HG_URL=bundle2
   incoming hook: HG_NODE=8a5212ebc8527f9fb821601504794e3eb11a1ed3 HG_SOURCE=bundle2 HG_URL=bundle2
   changegroup hook: HG_NODE=7f219660301fe4c8a116f714df5e769695cc2b46 HG_PHASES_MOVED=1 HG_SOURCE=bundle2 HG_URL=bundle2
-  incoming hook: HG_NODE=7f219660301fe4c8a116f714df5e769695cc2b46 HG_SOURCE=bundle2 HG_URL=bundle2
-  incoming hook: HG_NODE=1d14c3ce6ac0582d2809220d33e8cd7a696e0156 HG_SOURCE=bundle2 HG_URL=bundle2
-  incoming hook: HG_NODE=5cd59d311f6508b8e0ed28a266756c859419c9f1 HG_SOURCE=bundle2 HG_URL=bundle2
+  incoming hook: HG_NODE=7f219660301fe4c8a116f714df5e769695cc2b46 HG_PHASES_MOVED=1 HG_SOURCE=bundle2 HG_URL=bundle2
+  incoming hook: HG_NODE=1d14c3ce6ac0582d2809220d33e8cd7a696e0156 HG_PHASES_MOVED=1 HG_SOURCE=bundle2 HG_URL=bundle2
+  incoming hook: HG_NODE=5cd59d311f6508b8e0ed28a266756c859419c9f1 HG_PHASES_MOVED=1 HG_SOURCE=bundle2 HG_URL=bundle2
   pullop.cgresult is 3
   (run 'hg heads' to see heads, 'hg merge' to merge)
   $ hg log -G
@@ -235,7 +235,7 b' pullop.cgresult'
   changegroup hook: HG_NODE=71bd7b46de72e69a32455bf88d04757d542e6cf4 HG_SOURCE=bundle2 HG_URL=bundle2
   incoming hook: HG_NODE=71bd7b46de72e69a32455bf88d04757d542e6cf4 HG_SOURCE=bundle2 HG_URL=bundle2
   changegroup hook: HG_NODE=9d18e5bd9ab09337802595d49f1dad0c98df4d84 HG_PHASES_MOVED=1 HG_SOURCE=bundle2 HG_URL=bundle2
-  incoming hook: HG_NODE=9d18e5bd9ab09337802595d49f1dad0c98df4d84 HG_SOURCE=bundle2 HG_URL=bundle2
+  incoming hook: HG_NODE=9d18e5bd9ab09337802595d49f1dad0c98df4d84 HG_PHASES_MOVED=1 HG_SOURCE=bundle2 HG_URL=bundle2
   pullop.cgresult is -2
   (run 'hg update' to get a working copy)
   $ hg log -G