# HG changeset patch
# User Denis Laxalde <denis@laxalde.org>
# Date 1490431147 -3600
# Node ID 9b35777962919066ffdc76fe22e4c9dcfece7ecd
# Parent  992882cef7e1570ec1e0956369c157e0b2b5fcba
cmdutil: add a "changeset.obsolete" label in changeset_printer

Until now there were no label to highlight obsolete changesets in log output,
only evolution troubles (unstable, bumped, divergent) are supported. We add a
"changeset.obsolete" label on changeset entries produced by changeset_printer
so that obsolete changesets can be highlighted in log output. This is useful
because, unless using a graph log where obsolete changesets have a 'x' marker,
there's no way to identify obsolete changesets. And even in graph mode, when
working directory's parent is obsolete, we get a '@' marker and we do not see
it as obsolete.

diff -r 992882cef7e1 -r 9b3577796291 mercurial/cmdutil.py
--- a/mercurial/cmdutil.py	Tue Mar 28 14:40:13 2017 -0700
+++ b/mercurial/cmdutil.py	Sat Mar 25 09:39:07 2017 +0100
@@ -1155,6 +1155,8 @@
 
 def _changesetlabels(ctx):
     labels = ['log.changeset', 'changeset.%s' % ctx.phasestr()]
+    if ctx.obsolete():
+        labels.append('changeset.obsolete')
     if ctx.troubled():
         labels.append('changeset.troubled')
         for trouble in ctx.troubles():