##// END OF EJS Templates
hgweb: consume generator inside context manager (issue4756)...
hgweb: consume generator inside context manager (issue4756) If code inside a context manager returns a generator, the context manager exits before the generator is iterated. hgweb was using a context manager to control thread safe access to a localrepository instance. But it was returning a generator, so there was a race condition between a previous request streaming a response to the client and a new request obtaining the released but in use repository. By iterating the generator inside the context manager, we ensure we don't release the repo instance until after the response has finished. With this change, hgweb finally appears to have full localrepository isolation between threads. I can no longer reproduce the 2 exceptions reported in issue4756. test-hgweb-non-interactive.t has been modified to consume the output of calling into a WSGI application. Without this, execution of the WSGI application stalls because of the added yield statement.

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graph.tmpl
122 lines | 3.9 KiB | application/x-cheetah | CheetahLexer
{header}
<title>{repo|escape}: Graph</title>
<link rel="alternate" type="application/atom+xml"
href="{url|urlescape}atom-log" title="Atom feed for {repo|escape}"/>
<link rel="alternate" type="application/rss+xml"
href="{url|urlescape}rss-log" title="RSS feed for {repo|escape}"/>
<!--[if IE]><script type="text/javascript" src="{staticurl|urlescape}excanvas.js"></script><![endif]-->
</head>
<body>
<div class="page_header">
<a href="{logourl}" title="Mercurial" style="float: right;">Mercurial</a>
<a href="/">Mercurial</a> {pathdef%breadcrumb} / graph
</div>
<form action="{url|urlescape}log">
{sessionvars%hiddenformentry}
<div class="search">
<input type="text" name="rev" />
</div>
</form>
<div class="page_nav">
<a href="{url|urlescape}summary{sessionvars%urlparameter}">summary</a> |
<a href="{url|urlescape}shortlog{sessionvars%urlparameter}">shortlog</a> |
<a href="{url|urlescape}log/{symrev}{sessionvars%urlparameter}">changelog</a> |
graph |
<a href="{url|urlescape}tags{sessionvars%urlparameter}">tags</a> |
<a href="{url|urlescape}bookmarks{sessionvars%urlparameter}">bookmarks</a> |
<a href="{url|urlescape}branches{sessionvars%urlparameter}">branches</a> |
<a href="{url|urlescape}file/{symrev}{sessionvars%urlparameter}">files</a> |
<a href="{url|urlescape}help{sessionvars%urlparameter}">help</a>
<br/>
<a href="{url|urlescape}graph/{symrev}{lessvars%urlparameter}">less</a>
<a href="{url|urlescape}graph/{symrev}{morevars%urlparameter}">more</a>
| {changenav%navgraph}<br/>
</div>
<div class="title">&nbsp;</div>
<noscript>The revision graph only works with JavaScript-enabled browsers.</noscript>
<div id="wrapper">
<ul id="nodebgs"></ul>
<canvas id="graph" width="480" height="{canvasheight}"></canvas>
<ul id="graphnodes"></ul>
</div>
<script>
<!-- hide script content
var data = {jsdata|json};
var graph = new Graph();
graph.scale({bg_height});
graph.vertex = function(x, y, color, parity, cur) \{
this.ctx.beginPath();
color = this.setColor(color, 0.25, 0.75);
this.ctx.arc(x, y, radius, 0, Math.PI * 2, true);
this.ctx.fill();
var bg = '<li class="bg parity' + parity + '"></li>';
var left = (this.bg_height - this.box_size) + (this.columns + 1) * this.box_size;
var nstyle = 'padding-left: ' + left + 'px;';
var tagspan = '';
if (cur[7].length || cur[8].length || (cur[6][0] != 'default' || cur[6][1])) \{
tagspan = '<span class="logtags">';
if (cur[6][1]) \{
tagspan += '<span class="branchtag" title="' + cur[6][0] + '">';
tagspan += cur[6][0] + '</span> ';
} else if (!cur[6][1] && cur[6][0] != 'default') \{
tagspan += '<span class="inbranchtag" title="' + cur[6][0] + '">';
tagspan += cur[6][0] + '</span> ';
}
if (cur[7].length) \{
for (var t in cur[7]) \{
var tag = cur[7][t];
tagspan += '<span class="tagtag">' + tag + '</span> ';
}
}
if (cur[8].length) \{
for (var t in cur[8]) \{
var bookmark = cur[8][t];
tagspan += '<span class="bookmarktag">' + bookmark + '</span> ';
}
}
tagspan += '</span>';
}
var item = '<li style="' + nstyle + '"><span class="desc">';
item += '<a class="list" href="{url|urlescape}rev/' + cur[0] + '{sessionvars%urlparameter}" title="' + cur[0] + '"><b>' + cur[3] + '</b></a>';
item += '</span> ' + tagspan + '';
item += '<span class="info">' + cur[5] + ', by ' + cur[4] + '</span></li>';
return [bg, item];
}
graph.render(data);
// stop hiding script -->
</script>
<div class="page_nav">
<a href="{url|urlescape}graph/{symrev}{lessvars%urlparameter}">less</a>
<a href="{url|urlescape}graph/{symrev}{morevars%urlparameter}">more</a>
| {changenav%navgraph}
</div>
<script type="text/javascript">
ajaxScrollInit(
'{url|urlescape}graph/{rev}?revcount=%next%&style={style}',
{revcount}+60,
function (htmlText, previousVal) \{ return previousVal + 60; },
'#wrapper',
'<div class="%class%" style="text-align: center;">%text%</div>',
'graph'
);
</script>
{footer}