# HG changeset patch
# User Gregory Szorc <gregory.szorc@gmail.com>
# Date 1501820007 25200
# Node ID e9898ad311157617396ea387f1e73c80eff4961b
# Parent  1246acdad653401776e4f577c361992f5d8db1c0
cmdutil: allow extra properties to be added to each context

The changeset displayer allows setting extra keywords to be available
to the templating layer. This patch adds an argument to displaygraph()
to pass a dict of extra properties to be available to every changeset.

Differential Revision: https://phab.mercurial-scm.org/D555

diff -r 1246acdad653 -r e9898ad31115 mercurial/cmdutil.py
--- a/mercurial/cmdutil.py	Thu Sep 14 09:41:22 2017 -0700
+++ b/mercurial/cmdutil.py	Thu Aug 03 21:13:27 2017 -0700
@@ -2617,7 +2617,8 @@
     return formatnode
 
 def displaygraph(ui, repo, dag, displayer, edgefn, getrenamed=None,
-                 filematcher=None):
+                 filematcher=None, props=None):
+    props = props or {}
     formatnode = _graphnodeformatter(ui, displayer)
     state = graphmod.asciistate()
     styles = state['styles']
@@ -2658,7 +2659,7 @@
         firstedge = next(edges)
         width = firstedge[2]
         displayer.show(ctx, copies=copies, matchfn=revmatchfn,
-                       _graphwidth=width)
+                       _graphwidth=width, **props)
         lines = displayer.hunk.pop(rev).split('\n')
         if not lines[-1]:
             del lines[-1]