view tests/test-highlight.t @ 28582:cdbc25306696

run-tests: add --with-python3 to define a Python 3 interpreter Currently, very few parts of Mercurial run under Python 3, notably the test harness. We want to write tests that run Python 3. For example, we want to extend test-check-py3-compat.t to parse and load Python files. However, we have a problem: finding appropriate files requires running `hg files` and this requires Python 2 until `hg` works with Python 3. As a temporary workaround, we add --with-python3 to the test harness to allow us to define the path to a Python 3 interpreter. This interpreter is made available to the test environment via $PYTHON3 so tests can run things with Python 3 while the test harness and `hg` invocations continue to run from Python 2. To round out the feature, a "py3exe" hghave check has been added.
author Gregory Szorc <gregory.szorc@gmail.com>
date Fri, 18 Mar 2016 16:17:56 -0700
parents bc2dd19b9534
children 6b77adc2c7b5
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=\"\([cs]\)[h12]\"/class=\"\1\"/g"
  > }

create random Python file to exercise Pygments

  $ cat <<EOF > primes.py
  > #!/usr/bin/env python
  > 
  > """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

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   view primes.py @ 0:<a href="/rev/06824edf55d0">06824edf55d0</a>
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  <span id="l1"><span class="c">#!/usr/bin/env python</span></span><a href="#l1"></a>
  <span id="l2"></span><a href="#l2"></a>
  <span id="l3"><span class="sd">&quot;&quot;&quot;Fun with generators. Corresponding Haskell implementation:</span></span><a href="#l3"></a>
  <span id="l4"></span><a href="#l4"></a>
  <span id="l5"><span class="sd">primes = 2 : sieve [3, 5..]</span></span><a href="#l5"></a>
  <span id="l6"><span class="sd">    where sieve (p:ns) = p : sieve [n | n &lt;- ns, mod n p /= 0]</span></span><a href="#l6"></a>
  <span id="l7"><span class="sd">&quot;&quot;&quot;</span></span><a href="#l7"></a>
  <span id="l8"></span><a href="#l8"></a>
  <span id="l9"><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="#l9"></a>
  <span id="l10"></span><a href="#l10"></a>
  <span id="l11"><span class="kn">def</span> <span class="nf">primes</span><span class="p">():</span></span><a href="#l11"></a>
  <span id="l12">    <span class="sd">&quot;&quot;&quot;Generate all primes.&quot;&quot;&quot;</span></span><a href="#l12"></a>
  <span id="l13">    <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="#l13"></a>
  <span id="l14">        <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="#l14"></a>
  <span id="l15">        <span class="c"># It is important to yield *here* in order to stop the</span></span><a href="#l15"></a>
  <span id="l16">        <span class="c"># infinite recursion.</span></span><a href="#l16"></a>
  <span id="l17">        <span class="kn">yield</span> <span class="n">p</span></span><a href="#l17"></a>
  <span id="l18">        <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="#l18"></a>
  <span id="l19">        <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="#l19"></a>
  <span id="l20">            <span class="kn">yield</span> <span class="n">n</span></span><a href="#l20"></a>
  <span id="l21"></span><a href="#l21"></a>
  <span id="l22">    <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="#l22"></a>
  <span id="l23">    <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="#l23"></a>
  <span id="l24"></span><a href="#l24"></a>
  <span id="l25"><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="#l25"></a>
  <span id="l26">    <span class="kn">import</span> <span class="nn">sys</span></span><a href="#l26"></a>
  <span id="l27">    <span class="kn">try</span><span class="p">:</span></span><a href="#l27"></a>
  <span id="l28">        <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="#l28"></a>
  <span id="l29">    <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="#l29"></a>
  <span id="l30">        <span class="n">n</span> <span class="o">=</span> <span class="mi">10</span></span><a href="#l30"></a>
  <span id="l31">    <span class="n">p</span> <span class="o">=</span> <span class="n">primes</span><span class="p">()</span></span><a href="#l31"></a>
  <span id="l32">    <span class="kn">print</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="#l32"></a>
  <span id="l33"></span><a href="#l33"></a></pre>
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  <tr id="l1">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l1"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l1">     1</a> <span class="c">#!/usr/bin/env python</span></td>
  </tr>
  <tr id="l2">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l2"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l2">     2</a> </td>
  </tr>
  <tr id="l3">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l3"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l3">     3</a> <span class="sd">&quot;&quot;&quot;Fun with generators. Corresponding Haskell implementation:</span></td>
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  <tr id="l4">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l4"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l4">     4</a> </td>
  </tr>
  <tr id="l5">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l5"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l5">     5</a> <span class="sd">primes = 2 : sieve [3, 5..]</span></td>
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  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l6"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l6">     6</a> <span class="sd">    where sieve (p:ns) = p : sieve [n | n &lt;- ns, mod n p /= 0]</span></td>
  </tr>
  <tr id="l7">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l7"
  title="06824edf55d0: a">test@0</a>
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  <td class="source"><a href="#l7">     7</a> <span class="sd">&quot;&quot;&quot;</span></td>
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  <a href="/annotate/06824edf55d0/primes.py#l8"
  title="06824edf55d0: a">test@0</a>
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  <td class="source"><a href="#l8">     8</a> </td>
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  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l9"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l9">     9</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>
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  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l10"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l10">    10</a> </td>
  </tr>
  <tr id="l11">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l11"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l11">    11</a> <span class="kn">def</span> <span class="nf">primes</span><span class="p">():</span></td>
  </tr>
  <tr id="l12">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l12"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l12">    12</a>     <span class="sd">&quot;&quot;&quot;Generate all primes.&quot;&quot;&quot;</span></td>
  </tr>
  <tr id="l13">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l13"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l13">    13</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="l14">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l14"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l14">    14</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>
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  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l15"
  title="06824edf55d0: a">test@0</a>
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  <td class="source"><a href="#l15">    15</a>         <span class="c"># It is important to yield *here* in order to stop the</span></td>
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  <tr id="l16">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l16"
  title="06824edf55d0: a">test@0</a>
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  <td class="source"><a href="#l16">    16</a>         <span class="c"># infinite recursion.</span></td>
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  <tr id="l17">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l17"
  title="06824edf55d0: a">test@0</a>
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  <td class="source"><a href="#l17">    17</a>         <span class="kn">yield</span> <span class="n">p</span></td>
  </tr>
  <tr id="l18">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l18"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l18">    18</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>
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  title="06824edf55d0: a">test@0</a>
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  <td class="source"><a href="#l19">    19</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="l20">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l20"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l20">    20</a>             <span class="kn">yield</span> <span class="n">n</span></td>
  </tr>
  <tr id="l21">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l21"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l21">    21</a> </td>
  </tr>
  <tr id="l22">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l22"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l22">    22</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="l23">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l23"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l23">    23</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="l24">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l24"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l24">    24</a> </td>
  </tr>
  <tr id="l25">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l25"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l25">    25</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="l26">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l26"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l26">    26</a>     <span class="kn">import</span> <span class="nn">sys</span></td>
  </tr>
  <tr id="l27">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l27"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l27">    27</a>     <span class="kn">try</span><span class="p">:</span></td>
  </tr>
  <tr id="l28">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l28"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l28">    28</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="l29">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l29"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l29">    29</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="l30">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l30"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l30">    30</a>         <span class="n">n</span> <span class="o">=</span> <span class="mi">10</span></td>
  </tr>
  <tr id="l31">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l31"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l31">    31</a>     <span class="n">p</span> <span class="o">=</span> <span class="n">primes</span><span class="p">()</span></td>
  </tr>
  <tr id="l32">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l32"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l32">    32</a>     <span class="kn">print</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="l33">
  <td class="annotate">
  <a href="/annotate/06824edf55d0/primes.py#l33"
  title="06824edf55d0: a">test@0</a>
  </td>
  <td class="source"><a href="#l33">    33</a> </td>
  </tr>
  </tbody>
  </table>
  </div>
  </div>
  </div>
  
  <script type="text/javascript">process_dates()</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 primes():</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
  > #!/usr/bin/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 ..