update: add comments and test cases for updating across branches
Add comment to merge.py:update() showing various cases of 'hg update': to a
descendant, crossing named branches, and crossing branches within a named
branch; with no option, -c or -C; with or without uncommitted changes; and
with or without a specific revision. Add tests for all of these cases.
{header}
<title>{repo|escape}: branches</title>
<link rel="alternate" type="application/atom+xml"
href="{url}atom-tags" title="Atom feed for {repo|escape}: branches" />
<link rel="alternate" type="application/rss+xml"
href="{url}rss-tags" title="RSS feed for {repo|escape}: branches" />
</head>
<body>
<div class="container">
<div class="menu">
<div class="logo">
<a href="http://mercurial.selenic.com/">
<img src="{staticurl}hglogo.png" alt="mercurial" /></a>
</div>
<ul>
<li><a href="{url}shortlog{sessionvars%urlparameter}">log</a></li>
<li><a href="{url}graph{sessionvars%urlparameter}">graph</a></li>
<li><a href="{url}tags{sessionvars%urlparameter}">tags</a></li>
<li class="active">branches</li>
</ul>
</div>
<div class="main">
<h2><a href="{url}{sessionvars%urlparameter}">{repo|escape}</a></h2>
<h3>branches</h3>
<form class="search" action="{url}log">
{sessionvars%hiddenformentry}
<p><input name="rev" id="search1" type="text" size="30" /></p>
<div id="hint">find changesets by author, revision,
files, or words in the commit message</div>
</form>
<table class="bigtable">
<tr>
<th>branch</th>
<th>node</th>
</tr>
{entries%branchentry}
</table>
</div>
</div>
{footer}