hgweb: add parents to json-log (issue5074) Entries prepared in webutil.changelistentry() skip showing parents in the trivial case when there's only one parent and it's the previous revision. This doesn't work well for the json-log template, which is supposed to just dump raw data in an easy-to-parse format, so let's provide all parents as another keyword: allparents. Using a lambda function here means that the performance of templates that don't use allparents won't be affected (see 41957e50e109).

--- a/mercurial/hgweb/webutil.py	Mon Feb 29 17:46:06 2016 +0900
+++ b/mercurial/hgweb/webutil.py	Thu Mar 31 18:09:09 2016 +0800
@@ -341,6 +341,7 @@
 
     entry = commonentry(repo, ctx)
     entry.update(
+        allparents=lambda **x: parents(ctx),
         parent=lambda **x: parents(ctx, rev - 1),
         child=lambda **x: children(ctx, rev + 1),
         changelogtag=showtags,