view tests/test-highlight.t @ 35190:bd8875b6473c

run-tests: mechanism to report exceptions during test execution Sometimes when running tests you introduce a ton of exceptions. The most extreme example of this is running Mercurial with Python 3, which currently spews thousands of exceptions when running the test harness. This commit adds an opt-in feature to run-tests.py to aggregate exceptions encountered by `hg` when running tests. When --exceptions is used, the test harness enables the "logexceptions" extension in the test environment. This extension wraps the Mercurial function to handle exceptions and writes information about the exception to a random filename in a directory defined by the test harness via an environment variable. At the end of the test harness, these files are parsed, aggregated, and a list of all unique Mercurial frames triggering exceptions is printed in order of frequency. This feature is intended to aid Python 3 development. I've only really tested it on Python 3. There is no shortage of improvements that could be made. e.g. we could write a separate file containing the exception report - maybe even an HTML report. We also don't capture which tests demonstrate the exceptions, so there's no turnkey way to test whether a code change made an exception disappear. Perfect is the enemy of good. I think the current patch is useful enough to land. Whoever uses it can send patches to imprve its usefulness. Differential Revision: https://phab.mercurial-scm.org/D1477
author Gregory Szorc <gregory.szorc@gmail.com>
date Mon, 20 Nov 2017 23:02:32 -0800
parents a1de4ffaa7a8
children 2ead51dcde71
line wrap: on
line source

#require pygments serve

  $ cat <<EOF >> $HGRCPATH
  > [extensions]
  > highlight =
  > [web]
  > pygments_style = friendly
  > highlightfiles = **.py and size('<100KB')
  > EOF
  $ hg init test
  $ cd test

  $ filterhtml () {
  >   sed -e "s/class=\"k\"/class=\"kn\"/g" \
  >       -e "s/class=\"mf\"/class=\"mi\"/g" \
  >       -e "s/class=\"vm\"/class=\"n\"/g" \
  >       -e "s/class=\"\([cs]\)[h12]\"/class=\"\1\"/g"
  > }

create random Python file to exercise Pygments

  $ cat <<EOF > primes.py
  > """Fun with generators. Corresponding Haskell implementation:
  > 
  > primes = 2 : sieve [3, 5..]
  >     where sieve (p:ns) = p : sieve [n | n <- ns, mod n p /= 0]
  > """
  > 
  > from itertools import dropwhile, ifilter, islice, count, chain
  > 
  > def primes():
  >     """Generate all primes."""
  >     def sieve(ns):
  >         p = ns.next()
  >         # It is important to yield *here* in order to stop the
  >         # infinite recursion.
  >         yield p
  >         ns = ifilter(lambda n: n % p != 0, ns)
  >         for n in sieve(ns):
  >             yield n
  > 
  >     odds = ifilter(lambda i: i % 2 == 1, count())
  >     return chain([2], sieve(dropwhile(lambda n: n < 3, odds)))
  > 
  > if __name__ == "__main__":
  >     import sys
  >     try:
  >         n = int(sys.argv[1])
  >     except (ValueError, IndexError):
  >         n = 10
  >     p = primes()
  >     print("The first %d primes: %s" % (n, list(islice(p, n))))
  > EOF
  $ echo >> primes.py  # to test html markup with an empty line just before EOF
  $ hg ci -Ama
  adding primes.py

hg serve

  $ hg serve -p $HGPORT -d -n test --pid-file=hg.pid -A access.log -E errors.log
  $ cat hg.pid >> $DAEMON_PIDS

hgweb filerevision, html

  $ (get-with-headers.py localhost:$HGPORT 'file/tip/primes.py') | filterhtml
  200 Script output follows
  
  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
  <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US">
  <head>
  <link rel="icon" href="/static/hgicon.png" type="image/png" />
  <meta name="robots" content="index, nofollow" />
  <link rel="stylesheet" href="/static/style-paper.css" type="text/css" />
  <script type="text/javascript" src="/static/mercurial.js"></script>
  
  <link rel="stylesheet" href="/highlightcss" type="text/css" />
  <title>test: f4fca47b67e6 primes.py</title>
  </head>
  <body>
  
  <div class="container">
  <div class="menu">
  <div class="logo">
  <a href="https://mercurial-scm.org/">
  <img src="/static/hglogo.png" alt="mercurial" /></a>
  </div>
  <ul>
  <li><a href="/shortlog/tip">log</a></li>
  <li><a href="/graph/tip">graph</a></li>
  <li><a href="/tags">tags</a></li>
  <li><a href="/bookmarks">bookmarks</a></li>
  <li><a href="/branches">branches</a></li>
  </ul>
  <ul>
  <li><a href="/rev/tip">changeset</a></li>
  <li><a href="/file/tip/">browse</a></li>
  </ul>
  <ul>
  <li class="active">file</li>
  <li><a href="/file/tip/primes.py">latest</a></li>
  <li><a href="/diff/tip/primes.py">diff</a></li>
  <li><a href="/comparison/tip/primes.py">comparison</a></li>
  <li><a href="/annotate/tip/primes.py">annotate</a></li>
  <li><a href="/log/tip/primes.py">file log</a></li>
  <li><a href="/raw-file/tip/primes.py">raw</a></li>
  </ul>
  <ul>
  <li><a href="/help">help</a></li>
  </ul>
  </div>
  
  <div class="main">
  <h2 class="breadcrumb"><a href="/">Mercurial</a> </h2>
  <h3>
   view primes.py @ 0:<a href="/rev/f4fca47b67e6">f4fca47b67e6</a>
   <span class="phase">draft</span> <span class="branchhead">default</span> <span class="tag">tip</span> 
  </h3>
  
  
  <form class="search" action="/log">
  
  <p><input name="rev" id="search1" type="text" size="30" value="" /></p>
  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
  </form>
  
  <div class="description">a</div>
  
  <table id="changesetEntry">
  <tr>
   <th class="author">author</th>
   <td class="author">&#116;&#101;&#115;&#116;</td>
  </tr>
  <tr>
   <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>
  </tr>
  <tr>
   <th class="author">children</th>
   <td class="author"></td>
  </tr>
  </table>
  
  <div class="overflow">
  <div class="sourcefirst linewraptoggle">line wrap: <a class="linewraplink" href="javascript:toggleLinewrap()">on</a></div>
  <div class="sourcefirst"> line source</div>
  <pre class="sourcelines stripes4 wrap bottomline"
       data-logurl="/log/tip/primes.py"
       data-selectabletag="SPAN"
       data-ishead="1">
  
  <span id="l1"><span class="sd">&quot;&quot;&quot;Fun with generators. Corresponding Haskell implementation:</span></span><a href="#l1"></a>
  <span id="l2"></span><a href="#l2"></a>
  <span id="l3"><span class="sd">primes = 2 : sieve [3, 5..]</span></span><a href="#l3"></a>
  <span id="l4"><span class="sd">    where sieve (p:ns) = p : sieve [n | n &lt;- ns, mod n p /= 0]</span></span><a href="#l4"></a>
  <span id="l5"><span class="sd">&quot;&quot;&quot;</span></span><a href="#l5"></a>
  <span id="l6"></span><a href="#l6"></a>
  <span id="l7"><span class="kn">from</span> <span class="nn">itertools</span> <span class="kn">import</span> <span class="n">dropwhile</span><span class="p">,</span> <span class="n">ifilter</span><span class="p">,</span> <span class="n">islice</span><span class="p">,</span> <span class="n">count</span><span class="p">,</span> <span class="n">chain</span></span><a href="#l7"></a>
  <span id="l8"></span><a href="#l8"></a>
  <span id="l9"><span class="kn">def</span> <span class="nf">primes</span><span class="p">():</span></span><a href="#l9"></a>
  <span id="l10">    <span class="sd">&quot;&quot;&quot;Generate all primes.&quot;&quot;&quot;</span></span><a href="#l10"></a>
  <span id="l11">    <span class="kn">def</span> <span class="nf">sieve</span><span class="p">(</span><span class="n">ns</span><span class="p">):</span></span><a href="#l11"></a>
  <span id="l12">        <span class="n">p</span> <span class="o">=</span> <span class="n">ns</span><span class="o">.</span><span class="n">next</span><span class="p">()</span></span><a href="#l12"></a>
  <span id="l13">        <span class="c"># It is important to yield *here* in order to stop the</span></span><a href="#l13"></a>
  <span id="l14">        <span class="c"># infinite recursion.</span></span><a href="#l14"></a>
  <span id="l15">        <span class="kn">yield</span> <span class="n">p</span></span><a href="#l15"></a>
  <span id="l16">        <span class="n">ns</span> <span class="o">=</span> <span class="n">ifilter</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">n</span><span class="p">:</span> <span class="n">n</span> <span class="o">%</span> <span class="n">p</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">,</span> <span class="n">ns</span><span class="p">)</span></span><a href="#l16"></a>
  <span id="l17">        <span class="kn">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="n">sieve</span><span class="p">(</span><span class="n">ns</span><span class="p">):</span></span><a href="#l17"></a>
  <span id="l18">            <span class="kn">yield</span> <span class="n">n</span></span><a href="#l18"></a>
  <span id="l19"></span><a href="#l19"></a>
  <span id="l20">    <span class="n">odds</span> <span class="o">=</span> <span class="n">ifilter</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">i</span><span class="p">:</span> <span class="n">i</span> <span class="o">%</span> <span class="mi">2</span> <span class="o">==</span> <span class="mi">1</span><span class="p">,</span> <span class="n">count</span><span class="p">())</span></span><a href="#l20"></a>
  <span id="l21">    <span class="kn">return</span> <span class="n">chain</span><span class="p">([</span><span class="mi">2</span><span class="p">],</span> <span class="n">sieve</span><span class="p">(</span><span class="n">dropwhile</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">n</span><span class="p">:</span> <span class="n">n</span> <span class="o">&lt;</span> <span class="mi">3</span><span class="p">,</span> <span class="n">odds</span><span class="p">)))</span></span><a href="#l21"></a>
  <span id="l22"></span><a href="#l22"></a>
  <span id="l23"><span class="kn">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">&quot;__main__&quot;</span><span class="p">:</span></span><a href="#l23"></a>
  <span id="l24">    <span class="kn">import</span> <span class="nn">sys</span></span><a href="#l24"></a>
  <span id="l25">    <span class="kn">try</span><span class="p">:</span></span><a href="#l25"></a>
  <span id="l26">        <span class="n">n</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span></span><a href="#l26"></a>
  <span id="l27">    <span class="kn">except</span> <span class="p">(</span><span class="ne">ValueError</span><span class="p">,</span> <span class="ne">IndexError</span><span class="p">):</span></span><a href="#l27"></a>
  <span id="l28">        <span class="n">n</span> <span class="o">=</span> <span class="mi">10</span></span><a href="#l28"></a>
  <span id="l29">    <span class="n">p</span> <span class="o">=</span> <span class="n">primes</span><span class="p">()</span></span><a href="#l29"></a>
  <span id="l30">    <span class="kn">print</span><span class="p">(</span><span class="s">&quot;The first </span><span class="si">%d</span><span class="s"> primes: </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">n</span><span class="p">,</span> <span class="nb">list</span><span class="p">(</span><span class="n">islice</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="n">n</span><span class="p">))))</span></span><a href="#l30"></a>
  <span id="l31"></span><a href="#l31"></a>
  </pre>
  </div>
  
  <script type="text/javascript" src="/static/followlines.js"></script>
  
  </div>
  </div>
  
  
  
  </body>
  </html>
  

hgweb fileannotate, html

  $ (get-with-headers.py localhost:$HGPORT 'annotate/tip/primes.py') | filterhtml
  200 Script output follows
  
  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
  <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US">
  <head>
  <link rel="icon" href="/static/hgicon.png" type="image/png" />
  <meta name="robots" content="index, nofollow" />
  <link rel="stylesheet" href="/static/style-paper.css" type="text/css" />
  <script type="text/javascript" src="/static/mercurial.js"></script>
  
  <link rel="stylesheet" href="/highlightcss" type="text/css" />
  <title>test: primes.py annotate</title>
  </head>
  <body>
  
  <div class="container">
  <div class="menu">
  <div class="logo">
  <a href="https://mercurial-scm.org/">
  <img src="/static/hglogo.png" alt="mercurial" /></a>
  </div>
  <ul>
  <li><a href="/shortlog/tip">log</a></li>
  <li><a href="/graph/tip">graph</a></li>
  <li><a href="/tags">tags</a></li>
  <li><a href="/bookmarks">bookmarks</a></li>
  <li><a href="/branches">branches</a></li>
  </ul>
  
  <ul>
  <li><a href="/rev/tip">changeset</a></li>
  <li><a href="/file/tip/">browse</a></li>
  </ul>
  <ul>
  <li><a href="/file/tip/primes.py">file</a></li>
  <li><a href="/file/tip/primes.py">latest</a></li>
  <li><a href="/diff/tip/primes.py">diff</a></li>
  <li><a href="/comparison/tip/primes.py">comparison</a></li>
  <li class="active">annotate</li>
  <li><a href="/log/tip/primes.py">file log</a></li>
  <li><a href="/raw-file/tip/primes.py">raw</a></li>
  </ul>
  <ul>
  <li><a href="/help">help</a></li>
  </ul>
  </div>
  
  <div class="main">
  <h2 class="breadcrumb"><a href="/">Mercurial</a> </h2>
  <h3>
   annotate primes.py @ 0:<a href="/rev/f4fca47b67e6">f4fca47b67e6</a>
   <span class="phase">draft</span> <span class="branchhead">default</span> <span class="tag">tip</span> 
  </h3>
  
  
  <form class="search" action="/log">
  
  <p><input name="rev" id="search1" type="text" size="30" value="" /></p>
  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
  </form>
  
  <div class="description">a</div>
  
  <table id="changesetEntry">
  <tr>
   <th class="author">author</th>
   <td class="author">&#116;&#101;&#115;&#116;</td>
  </tr>
  <tr>
   <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>
  </tr>
  <tr>
   <th class="author">children</th>
   <td class="author"></td>
  </tr>
  </table>
  
  
  <form id="diffopts-form"
  data-ignorews="0"
  data-ignorewsamount="0"
  data-ignorewseol="0"
  data-ignoreblanklines="0">
  <span>Ignore whitespace changes - </span>
  <span>Everywhere:</span>
  <input id="ignorews-checkbox" type="checkbox" />
  <span>Within whitespace:</span>
  <input id="ignorewsamount-checkbox" type="checkbox" />
  <span>At end of lines:</span>
  <input id="ignorewseol-checkbox" type="checkbox" />
  </form>
  
  <script type="text/javascript">
      renderDiffOptsForm();
  </script>
  
  <div class="overflow">
  <table class="bigtable">
  <thead>
  <tr>
   <th class="annotate">rev</th>
   <th class="line">&nbsp;&nbsp;line source</th>
  </tr>
  </thead>
  <tbody class="stripes2 sourcelines"
         data-logurl="/log/tip/primes.py"
         data-selectabletag="TR"
         data-ishead="1">
    
  <tr id="l1" class="thisrev">
  <td class="annotate parity0">
  <a href="/annotate/f4fca47b67e6/primes.py#l1">
  0
  </a>
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l1">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l1">     1</a> <span class="sd">&quot;&quot;&quot;Fun with generators. Corresponding Haskell implementation:</span></td>
  </tr>
  <tr id="l2" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l2">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l2">     2</a> </td>
  </tr>
  <tr id="l3" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l3">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l3">     3</a> <span class="sd">primes = 2 : sieve [3, 5..]</span></td>
  </tr>
  <tr id="l4" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l4">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l4">     4</a> <span class="sd">    where sieve (p:ns) = p : sieve [n | n &lt;- ns, mod n p /= 0]</span></td>
  </tr>
  <tr id="l5" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l5">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l5">     5</a> <span class="sd">&quot;&quot;&quot;</span></td>
  </tr>
  <tr id="l6" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l6">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l6">     6</a> </td>
  </tr>
  <tr id="l7" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l7">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l7">     7</a> <span class="kn">from</span> <span class="nn">itertools</span> <span class="kn">import</span> <span class="n">dropwhile</span><span class="p">,</span> <span class="n">ifilter</span><span class="p">,</span> <span class="n">islice</span><span class="p">,</span> <span class="n">count</span><span class="p">,</span> <span class="n">chain</span></td>
  </tr>
  <tr id="l8" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l8">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l8">     8</a> </td>
  </tr>
  <tr id="l9" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l9">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l9">     9</a> <span class="kn">def</span> <span class="nf">primes</span><span class="p">():</span></td>
  </tr>
  <tr id="l10" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l10">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l10">    10</a>     <span class="sd">&quot;&quot;&quot;Generate all primes.&quot;&quot;&quot;</span></td>
  </tr>
  <tr id="l11" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l11">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l11">    11</a>     <span class="kn">def</span> <span class="nf">sieve</span><span class="p">(</span><span class="n">ns</span><span class="p">):</span></td>
  </tr>
  <tr id="l12" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l12">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l12">    12</a>         <span class="n">p</span> <span class="o">=</span> <span class="n">ns</span><span class="o">.</span><span class="n">next</span><span class="p">()</span></td>
  </tr>
  <tr id="l13" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l13">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l13">    13</a>         <span class="c"># It is important to yield *here* in order to stop the</span></td>
  </tr>
  <tr id="l14" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l14">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l14">    14</a>         <span class="c"># infinite recursion.</span></td>
  </tr>
  <tr id="l15" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l15">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l15">    15</a>         <span class="kn">yield</span> <span class="n">p</span></td>
  </tr>
  <tr id="l16" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l16">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l16">    16</a>         <span class="n">ns</span> <span class="o">=</span> <span class="n">ifilter</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">n</span><span class="p">:</span> <span class="n">n</span> <span class="o">%</span> <span class="n">p</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">,</span> <span class="n">ns</span><span class="p">)</span></td>
  </tr>
  <tr id="l17" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l17">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l17">    17</a>         <span class="kn">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="n">sieve</span><span class="p">(</span><span class="n">ns</span><span class="p">):</span></td>
  </tr>
  <tr id="l18" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l18">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l18">    18</a>             <span class="kn">yield</span> <span class="n">n</span></td>
  </tr>
  <tr id="l19" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l19">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l19">    19</a> </td>
  </tr>
  <tr id="l20" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l20">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l20">    20</a>     <span class="n">odds</span> <span class="o">=</span> <span class="n">ifilter</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">i</span><span class="p">:</span> <span class="n">i</span> <span class="o">%</span> <span class="mi">2</span> <span class="o">==</span> <span class="mi">1</span><span class="p">,</span> <span class="n">count</span><span class="p">())</span></td>
  </tr>
  <tr id="l21" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l21">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l21">    21</a>     <span class="kn">return</span> <span class="n">chain</span><span class="p">([</span><span class="mi">2</span><span class="p">],</span> <span class="n">sieve</span><span class="p">(</span><span class="n">dropwhile</span><span class="p">(</span><span class="kn">lambda</span> <span class="n">n</span><span class="p">:</span> <span class="n">n</span> <span class="o">&lt;</span> <span class="mi">3</span><span class="p">,</span> <span class="n">odds</span><span class="p">)))</span></td>
  </tr>
  <tr id="l22" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l22">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l22">    22</a> </td>
  </tr>
  <tr id="l23" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l23">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l23">    23</a> <span class="kn">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">&quot;__main__&quot;</span><span class="p">:</span></td>
  </tr>
  <tr id="l24" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l24">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l24">    24</a>     <span class="kn">import</span> <span class="nn">sys</span></td>
  </tr>
  <tr id="l25" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l25">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l25">    25</a>     <span class="kn">try</span><span class="p">:</span></td>
  </tr>
  <tr id="l26" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l26">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l26">    26</a>         <span class="n">n</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span></td>
  </tr>
  <tr id="l27" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l27">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l27">    27</a>     <span class="kn">except</span> <span class="p">(</span><span class="ne">ValueError</span><span class="p">,</span> <span class="ne">IndexError</span><span class="p">):</span></td>
  </tr>
  <tr id="l28" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l28">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l28">    28</a>         <span class="n">n</span> <span class="o">=</span> <span class="mi">10</span></td>
  </tr>
  <tr id="l29" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l29">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l29">    29</a>     <span class="n">p</span> <span class="o">=</span> <span class="n">primes</span><span class="p">()</span></td>
  </tr>
  <tr id="l30" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l30">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l30">    30</a>     <span class="kn">print</span><span class="p">(</span><span class="s">&quot;The first </span><span class="si">%d</span><span class="s"> primes: </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">n</span><span class="p">,</span> <span class="nb">list</span><span class="p">(</span><span class="n">islice</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="n">n</span><span class="p">))))</span></td>
  </tr>
  <tr id="l31" class="thisrev">
  <td class="annotate parity0">
  
  <div class="annotate-info">
  <div>
  <a href="/annotate/f4fca47b67e6/primes.py#l31">
  f4fca47b67e6</a>
  a
  </div>
  <div><em>&#116;&#101;&#115;&#116;</em></div>
  <div>parents: </div>
  <a href="/diff/f4fca47b67e6/primes.py">diff</a>
  <a href="/rev/f4fca47b67e6">changeset</a>
  </div>
  </td>
  <td class="source followlines-btn-parent"><a href="#l31">    31</a> </td>
  </tr>
  </tbody>
  </table>
  </div>
  </div>
  </div>
  
  <script type="text/javascript" src="/static/followlines.js"></script>
  
  
  
  </body>
  </html>
  

hgweb fileannotate, raw

  $ (get-with-headers.py localhost:$HGPORT 'annotate/tip/primes.py?style=raw') \
  >     | sed "s/test@//" > a
  $ echo "200 Script output follows" > b
  $ echo "" >> b
  $ echo "" >> b
  $ hg annotate "primes.py" >> b
  $ echo "" >> b
  $ echo "" >> b
  $ echo "" >> b
  $ echo "" >> b
  $ cmp b a || diff -u b a

hgweb filerevision, raw

  $ (get-with-headers.py localhost:$HGPORT 'file/tip/primes.py?style=raw') \
  >     > a
  $ echo "200 Script output follows" > b
  $ echo "" >> b
  $ hg cat primes.py >> b
  $ cmp b a || diff -u b a

hgweb highlightcss friendly

  $ get-with-headers.py localhost:$HGPORT 'highlightcss' > out
  $ head -n 4 out
  200 Script output follows
  
  /* pygments_style = friendly */
  
  $ rm out

errors encountered

  $ cat errors.log
  $ killdaemons.py

Change the pygments style

  $ cat > .hg/hgrc <<EOF
  > [web]
  > pygments_style = fruity
  > EOF

hg serve again

  $ hg serve -p $HGPORT -d -n test --pid-file=hg.pid -A access.log -E errors.log
  $ cat hg.pid >> $DAEMON_PIDS

hgweb highlightcss fruity

  $ get-with-headers.py localhost:$HGPORT 'highlightcss' > out
  $ head -n 4 out
  200 Script output follows
  
  /* pygments_style = fruity */
  
  $ rm out

errors encountered

  $ cat errors.log
  $ killdaemons.py

only highlight C source files

  $ cat > .hg/hgrc <<EOF
  > [web]
  > highlightfiles = **.c
  > EOF

hg serve again

  $ hg serve -p $HGPORT -d -n test --pid-file=hg.pid -A access.log -E errors.log
  $ cat hg.pid >> $DAEMON_PIDS

test that fileset in highlightfiles works and primes.py is not highlighted

  $ get-with-headers.py localhost:$HGPORT 'file/tip/primes.py' | grep 'id="l11"'
  <span id="l11">    def sieve(ns):</span><a href="#l11"></a>

errors encountered

  $ cat errors.log
  $ cd ..
  $ hg init eucjp
  $ cd eucjp
  $ $PYTHON -c 'print("\265\376")' >> eucjp.txt  # Japanese kanji "Kyo"
  $ hg ci -Ama
  adding eucjp.txt
  $ hgserveget () {
  >     killdaemons.py
  >     echo % HGENCODING="$1" hg serve
  >     HGENCODING="$1" hg serve -p $HGPORT -d -n test --pid-file=hg.pid -E errors.log
  >     cat hg.pid >> $DAEMON_PIDS
  > 
  >     echo % hgweb filerevision, html
  >     get-with-headers.py localhost:$HGPORT "file/tip/$2" \
  >         | grep '<div class="parity0 source">'
  >     echo % errors encountered
  >     cat errors.log
  > }
  $ hgserveget euc-jp eucjp.txt
  % HGENCODING=euc-jp hg serve
  % hgweb filerevision, html
  % errors encountered
  $ hgserveget utf-8 eucjp.txt
  % HGENCODING=utf-8 hg serve
  % hgweb filerevision, html
  % errors encountered
  $ hgserveget us-ascii eucjp.txt
  % HGENCODING=us-ascii hg serve
  % hgweb filerevision, html
  % errors encountered

We attempt to highlight unknown files by default

  $ killdaemons.py

  $ cat > .hg/hgrc << EOF
  > [web]
  > highlightfiles = **
  > EOF

  $ cat > unknownfile << EOF
  > #!$PYTHON
  > def foo():
  >    pass
  > EOF

  $ hg add unknownfile
  $ hg commit -m unknown unknownfile

  $ hg serve -p $HGPORT -d -n test --pid-file=hg.pid
  $ cat hg.pid >> $DAEMON_PIDS

  $ get-with-headers.py localhost:$HGPORT 'file/tip/unknownfile' | grep l2
  <span id="l2"><span class="k">def</span> <span class="nf">foo</span><span class="p">():</span></span><a href="#l2"></a>

We can prevent Pygments from falling back to a non filename-based
detection mode

  $ cat > .hg/hgrc << EOF
  > [web]
  > highlightfiles = **
  > highlightonlymatchfilename = true
  > EOF

  $ killdaemons.py
  $ hg serve -p $HGPORT -d -n test --pid-file=hg.pid
  $ cat hg.pid >> $DAEMON_PIDS
  $ get-with-headers.py localhost:$HGPORT 'file/tip/unknownfile' | grep l2
  <span id="l2">def foo():</span><a href="#l2"></a>

  $ cd ..