pulkit created this revision.
Herald added a subscriber: mercurial-devel.
Herald added a reviewer: hg-reviewers.

REVISION SUMMARY
  This patch adds support to rebase to show the changes in node once the rebase 
is
  complete. This will be extremely helpful for automation purposes and editors
  such as Nuclide.
  
  The output is a dictionary of predecessor hash as key and a list of 
successors'
  hashes. The successors one is a list as there can be many successor for a 
single
  predecessor in case of split and it will good to have a generic output format.
  
  This patch adds tests for the same. A new file is created for the patch as
  existing files related to rebase has their own purpose and there will be more
  formatter support coming for rebase in nex cycle.
  
  Thanks to Jun for suggesting to use fm.data().

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D1173

AFFECTED FILES
  hgext/rebase.py
  tests/test-rebase-templates.t

CHANGE DETAILS

diff --git a/tests/test-rebase-templates.t b/tests/test-rebase-templates.t
new file mode 100644
--- /dev/null
+++ b/tests/test-rebase-templates.t
@@ -0,0 +1,44 @@
+Testing templating for rebase command
+
+Setup
+
+  $ cat >> $HGRCPATH <<EOF
+  > [extensions]
+  > rebase=
+  > [experimental]
+  > evolution=createmarkers
+  > EOF
+
+  $ hg init repo
+  $ cd repo
+  $ for ch in a b c d; do echo foo > $ch; hg commit -Aqm "Added "$ch; done
+
+  $ hg log -G -T "{rev}:{node|short} {desc}"
+  @  3:62615734edd5 Added d
+  |
+  o  2:28ad74487de9 Added c
+  |
+  o  1:29becc82797a Added b
+  |
+  o  0:18d04c59bb5d Added a
+  
+Getting the JSON output for nodechanges
+
+  $ hg rebase -s 2 -d 0 -q -Tjson
+  [
+   {
+    "nodechanges": {"28ad74487de9599d00d81085be739c61fc340652": 
["849767420fd5519cf0026232411a943ed03cc9fb"], 
"62615734edd52f06b6fb9c2beb429e4fe30d57b8": 
["df21b32134ba85d86bca590cbe9b8b7cbc346c53"]}
+   }
+  ]
+
+  $ hg log -G -T "{rev}:{node|short} {desc}"
+  @  5:df21b32134ba Added d
+  |
+  o  4:849767420fd5 Added c
+  |
+  | o  1:29becc82797a Added b
+  |/
+  o  0:18d04c59bb5d Added a
+  
+  $ hg rebase -s 1 -d 5 -q -T "{nodechanges|json}"
+  {"29becc82797a4bc11ec8880b58eaecd2ab3e7760": 
["d9d6773efc831c274eace04bc13e8e6412517139"]} (no-eol)
diff --git a/hgext/rebase.py b/hgext/rebase.py
--- a/hgext/rebase.py
+++ b/hgext/rebase.py
@@ -21,6 +21,7 @@
 
 from mercurial.i18n import _
 from mercurial.node import (
+    hex,
     nullid,
     nullrev,
     short,
@@ -501,6 +502,8 @@
 
     def _finishrebase(self):
         repo, ui, opts = self.repo, self.ui, self.opts
+        fm = ui.formatter('rebase', opts)
+        fm.startitem()
         if self.collapsef and not self.keepopen:
             p1, p2, _base = defineparents(repo, min(self.state), self.destmap,
                                           self.state, self.skipped,
@@ -551,7 +554,7 @@
             if self.collapsef:
                 collapsedas = newnode
         clearrebased(ui, repo, self.destmap, self.state, self.skipped,
-                     collapsedas, self.keepf)
+                     collapsedas, self.keepf, fm=fm)
 
         clearstatus(repo)
         clearcollapsemsg(repo)
@@ -561,6 +564,7 @@
         if self.skipped:
             skippedlen = len(self.skipped)
             ui.note(_("%d revisions have been skipped\n") % skippedlen)
+        fm.end()
 
         if (self.activebookmark and self.activebookmark in repo._bookmarks and
             repo['.'].node() == repo._bookmarks[self.activebookmark]):
@@ -1517,7 +1521,7 @@
     return originalwd, destmap, state
 
 def clearrebased(ui, repo, destmap, state, skipped, collapsedas=None,
-                 keepf=False):
+                 keepf=False, fm=None):
     """dispose of rebased revision at the end of the rebase
 
     If `collapsedas` is not None, the rebase was a collapse whose result if the
@@ -1541,6 +1545,10 @@
                     succs = (newnode,)
                 replacements[oldnode] = succs
     scmutil.cleanupnodes(repo, replacements, 'rebase', moves)
+    if fm:
+        nodechanges = {hex(oldn): [hex(n) for n in newn]
+                       for oldn, newn in replacements.iteritems()}
+        fm.data(nodechanges=nodechanges)
 
 def pullrebase(orig, ui, repo, *args, **opts):
     'Call rebase after pull if the latter has been invoked with --rebase'



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Cc: mercurial-devel
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