hgweb: show users recorded in obsolescence markers

It's useful to see who obsoleted a commit, because it's not always done by its
author (hg-committed is a good example, because people rebase stacks of commits
made by various people).

Usernames are obfuscated, but look correct (e.g. "test" is
"test").

mercurial/templates/gitweb/map

@@ -275,7 +275,8 b' successorlink = \'<a class="list" href="{'
 obsfatesuccessors = '{if(successors, ' as ')}{successors%successorlink}'
 obsfateverb = '{obsfateverb(successors, markers)}'
 obsfateoperations = '{if(obsfateoperations(markers), ' using {join(obsfateoperations(markers), ', ')}')}'
-obsfateentry = '{obsfateverb}{obsfateoperations}{obsfatesuccessors}'
+obsfateusers = '{if(obsfateusers(markers), ' by {join(obsfateusers(markers)%'{user|obfuscate}', ', ')}')}'
+obsfateentry = '{obsfateverb}{obsfateoperations}{obsfatesuccessors}{obsfateusers}'
 shortlogentry = '
   <tr class="parity{parity}">
     <td class="age"><i class="age">{date|rfc822date}</i></td>

mercurial/templates/monoblue/map

@@ -233,7 +233,8 b' successorlink = \'<a href="{url|urlescape'
 obsfatesuccessors = '{if(successors, ' as ')}{successors%successorlink}'
 obsfateverb = '{obsfateverb(successors, markers)}'
 obsfateoperations = '{if(obsfateoperations(markers), ' using {join(obsfateoperations(markers), ', ')}')}'
-obsfateentry = '{obsfateverb}{obsfateoperations}{obsfatesuccessors}'
+obsfateusers = '{if(obsfateusers(markers), ' by {join(obsfateusers(markers)%'{user|obfuscate}', ', ')}')}'
+obsfateentry = '{obsfateverb}{obsfateoperations}{obsfatesuccessors}{obsfateusers}'
 shortlogentry = '
   <tr class="parity{parity}">
     <td class="nowrap age">{date|rfc822date}</td>

mercurial/templates/paper/map

@@ -213,7 +213,8 b' successorlink = \'<a href="{url|urlescape'
 obsfatesuccessors = '{if(successors, ' as ')}{successors%successorlink}'
 obsfateverb = '{obsfateverb(successors, markers)}'
 obsfateoperations = '{if(obsfateoperations(markers), ' using {join(obsfateoperations(markers), ', ')}')}'
-obsfateentry = '{obsfateverb}{obsfateoperations}{obsfatesuccessors}'
+obsfateusers = '{if(obsfateusers(markers), ' by {join(obsfateusers(markers)%'{user|obfuscate}', ', ')}')}'
+obsfateentry = '{obsfateverb}{obsfateoperations}{obsfatesuccessors}{obsfateusers}'
 
 filediffparent = '
   <tr>

mercurial/templates/spartan/map

@@ -170,7 +170,8 b' successorlink = \'<a href="{url|urlescape'
 obsfatesuccessors = '{if(successors, ' as ')}{successors%successorlink}'
 obsfateverb = '{obsfateverb(successors, markers)}'
 obsfateoperations = '{if(obsfateoperations(markers), ' using {join(obsfateoperations(markers), ', ')}')}'
-obsfateentry = '{obsfateverb}{obsfateoperations}{obsfatesuccessors}'
+obsfateusers = '{if(obsfateusers(markers), ' by {join(obsfateusers(markers)%'{user|obfuscate}', ', ')}')}'
+obsfateentry = '{obsfateverb}{obsfateoperations}{obsfatesuccessors}{obsfateusers}'
 filediffparent = '
   <tr>
     <th class="parent">parent {rev}:</th>

tests/test-obsolete.t

@@ -1050,19 +1050,19 b' check obsolete changeset'
           <span class="logtags"><span class="phasetag" title="draft">draft</span> <span class="obsoletetag" title="obsolete">obsolete</span> </span>
   $ get-with-headers.py localhost:$HGPORT 'log?rev=first(obsolete())&style=spartan' | grep 'class="obsolete"'
     <th class="obsolete">obsolete:</th>
-    <td class="obsolete">pruned</td>
+    <td class="obsolete">pruned by &#116;&#101;&#115;&#116;</td>
 
 check an obsolete changeset that has been rewritten
   $ get-with-headers.py localhost:$HGPORT 'rev/cda648ca50f5?style=paper' | grep rewritten
-   <td>rewritten as <a href="/rev/3de5eca88c00?style=paper">3de5eca88c00</a> </td>
+   <td>rewritten as <a href="/rev/3de5eca88c00?style=paper">3de5eca88c00</a>  by &#116;&#101;&#115;&#116;&#32;&#60;&#116;&#101;&#115;&#116;&#64;&#101;&#120;&#97;&#109;&#112;&#108;&#101;&#46;&#110;&#101;&#116;&#62;</td>
   $ get-with-headers.py localhost:$HGPORT 'rev/cda648ca50f5?style=coal' | grep rewritten
-   <td>rewritten as <a href="/rev/3de5eca88c00?style=coal">3de5eca88c00</a> </td>
+   <td>rewritten as <a href="/rev/3de5eca88c00?style=coal">3de5eca88c00</a>  by &#116;&#101;&#115;&#116;&#32;&#60;&#116;&#101;&#115;&#116;&#64;&#101;&#120;&#97;&#109;&#112;&#108;&#101;&#46;&#110;&#101;&#116;&#62;</td>
   $ get-with-headers.py localhost:$HGPORT 'rev/cda648ca50f5?style=gitweb' | grep rewritten
-  <tr><td>obsolete</td><td>rewritten as <a class="list" href="/rev/3de5eca88c00?style=gitweb">3de5eca88c00</a> </td></tr>
+  <tr><td>obsolete</td><td>rewritten as <a class="list" href="/rev/3de5eca88c00?style=gitweb">3de5eca88c00</a>  by &#116;&#101;&#115;&#116;&#32;&#60;&#116;&#101;&#115;&#116;&#64;&#101;&#120;&#97;&#109;&#112;&#108;&#101;&#46;&#110;&#101;&#116;&#62;</td></tr>
   $ get-with-headers.py localhost:$HGPORT 'rev/cda648ca50f5?style=monoblue' | grep rewritten
-          <dt>obsolete</dt><dd>rewritten as <a href="/rev/3de5eca88c00?style=monoblue">3de5eca88c00</a> </dd>
+          <dt>obsolete</dt><dd>rewritten as <a href="/rev/3de5eca88c00?style=monoblue">3de5eca88c00</a>  by &#116;&#101;&#115;&#116;&#32;&#60;&#116;&#101;&#115;&#116;&#64;&#101;&#120;&#97;&#109;&#112;&#108;&#101;&#46;&#110;&#101;&#116;&#62;</dd>
   $ get-with-headers.py localhost:$HGPORT 'rev/cda648ca50f5?style=spartan' | grep rewritten
-   <td class="obsolete">rewritten as <a href="/rev/3de5eca88c00?style=spartan">3de5eca88c00</a> </td>
+   <td class="obsolete">rewritten as <a href="/rev/3de5eca88c00?style=spartan">3de5eca88c00</a>  by &#116;&#101;&#115;&#116;&#32;&#60;&#116;&#101;&#115;&#116;&#64;&#101;&#120;&#97;&#109;&#112;&#108;&#101;&#46;&#110;&#101;&#116;&#62;</td>
 
 check changeset with instabilities