diff tests/test-hgweb-commands.t @ 35485:1721ce06100a

hgweb: display fate of obsolete changesets

Operations that obsolete changesets store enough metadata to explain what
happened after the fact. One way to get that metadata is showsuccsandmarkers
function, which returns a list of successors of a particular changeset and
appropriate obsolescence markers.

Templates have a set of experimental functions that have names starting with
obsfate. This patch uses some of these functions to interpret output of
succsandmarkers() and produce human-friendly messages that describe what
happened to an obsolete changeset, e.g. "pruned" or "rewritten as
6:3de5eca88c00".

In commonentry(), succsandmarkers property is made callable so it's only
executed on demand; this saves time when changeset is not obsolete, and also in
e.g. /shortlog view, where there are a lot of changesets, but we don't need to
show each and every one in detail.

In spartan theme, succsandmarkers is used instead of the simple "obsolete:
yes", in other themes a new line is added to /rev page.

--- a/tests/test-hgweb-commands.t	Sat Dec 16 18:58:02 2017 -0500
+++ b/tests/test-hgweb-commands.t	Tue Nov 21 17:03:41 2017 +0800
@@ -902,6 +902,7 @@
    <th class="date">date</th>
    <td class="date age">Thu, 01 Jan 1970 00:00:00 +0000</td>
   </tr>
+  
   <tr>
    <th class="author">parents</th>
    <td class="author"></td>