rebase: add support to output nodechanges
authorPulkit Goyal <7895pulkit@gmail.com>
Wed, 18 Oct 2017 04:31:46 +0530
changeset 34883 c858afe9c59b
parent 34882 e9f320a40b44
child 34884 05535d0dea68
rebase: add support to output nodechanges 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 successors 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 next cycle. Thanks to Jun for suggesting to use fm.data(). Differential Revision: https://phab.mercurial-scm.org/D1173
hgext/rebase.py
tests/test-rebase-templates.t
--- a/hgext/rebase.py	Tue Oct 17 13:20:25 2017 -0700
+++ b/hgext/rebase.py	Wed Oct 18 04:31:46 2017 +0530
@@ -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'
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-rebase-templates.t	Wed Oct 18 04:31:46 2017 +0530
@@ -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)