cmdutil: changeset_printer: use methods of filectx/changectx.
This allows extensions that modify changeset metadata (e.g.
description) by overriding methods of changectx to get consistent
behavior from all log-like commands, regardless of whether templates
or styles are used. Without this, overriding changectx methods works
if you use styles or templates, but not with default log format.
This meant adding filectx.extra() for consistency with changectx.
adding primes.py
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<h2><a href="/">test</a></h2>
<h3>view primes.py @ 0:853dcd4de2a6</h3>
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<div class="description">a</div>
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<th class="author">author</th>
<td class="author">test</td>
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<th class="date">date</th>
<td class="date">Thu Jan 01 00:00:00 1970 +0000 (many years ago)</td>
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<div class="parity0 source"><a href="#l1" id="l1"> 1</a> <span class="c">#!/usr/bin/env python</span></div>
<div class="parity1 source"><a href="#l2" id="l2"> 2</a> </div>
<div class="parity0 source"><a href="#l3" id="l3"> 3</a> <span class="sd">"""Fun with generators. Corresponding Haskell implementation:</span></div>
<div class="parity1 source"><a href="#l4" id="l4"> 4</a> </div>
<div class="parity0 source"><a href="#l5" id="l5"> 5</a> <span class="sd">primes = 2 : sieve [3, 5..]</span></div>
<div class="parity1 source"><a href="#l6" id="l6"> 6</a> <span class="sd"> where sieve (p:ns) = p : sieve [n | n <- ns, mod n p /= 0]</span></div>
<div class="parity0 source"><a href="#l7" id="l7"> 7</a> <span class="sd">"""</span></div>
<div class="parity1 source"><a href="#l8" id="l8"> 8</a> </div>
<div class="parity0 source"><a href="#l9" id="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></div>
<div class="parity1 source"><a href="#l10" id="l10"> 10</a> </div>
<div class="parity0 source"><a href="#l11" id="l11"> 11</a> <span class="kn">def</span> <span class="nf">primes</span><span class="p">():</span></div>
<div class="parity1 source"><a href="#l12" id="l12"> 12</a> <span class="sd">"""Generate all primes."""</span></div>
<div class="parity0 source"><a href="#l13" id="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></div>
<div class="parity1 source"><a href="#l14" id="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></div>
<div class="parity0 source"><a href="#l15" id="l15"> 15</a> <span class="c"># It is important to yield *here* in order to stop the</span></div>
<div class="parity1 source"><a href="#l16" id="l16"> 16</a> <span class="c"># infinite recursion.</span></div>
<div class="parity0 source"><a href="#l17" id="l17"> 17</a> <span class="kn">yield</span> <span class="n">p</span></div>
<div class="parity1 source"><a href="#l18" id="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></div>
<div class="parity0 source"><a href="#l19" id="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></div>
<div class="parity1 source"><a href="#l20" id="l20"> 20</a> <span class="kn">yield</span> <span class="n">n</span></div>
<div class="parity0 source"><a href="#l21" id="l21"> 21</a> </div>
<div class="parity1 source"><a href="#l22" id="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></div>
<div class="parity0 source"><a href="#l23" id="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"><</span> <span class="mi">3</span><span class="p">,</span> <span class="n">odds</span><span class="p">)))</span></div>
<div class="parity1 source"><a href="#l24" id="l24"> 24</a> </div>
<div class="parity0 source"><a href="#l25" id="l25"> 25</a> <span class="kn">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">"__main__"</span><span class="p">:</span></div>
<div class="parity1 source"><a href="#l26" id="l26"> 26</a> <span class="kn">import</span> <span class="nn">sys</span></div>
<div class="parity0 source"><a href="#l27" id="l27"> 27</a> <span class="kn">try</span><span class="p">:</span></div>
<div class="parity1 source"><a href="#l28" id="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></div>
<div class="parity0 source"><a href="#l29" id="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></div>
<div class="parity1 source"><a href="#l30" id="l30"> 30</a> <span class="n">n</span> <span class="o">=</span> <span class="mi">10</span></div>
<div class="parity0 source"><a href="#l31" id="l31"> 31</a> <span class="n">p</span> <span class="o">=</span> <span class="n">primes</span><span class="p">()</span></div>
<div class="parity1 source"><a href="#l32" id="l32"> 32</a> <span class="kn">print</span> <span class="s">"The first </span><span class="si">%d</span><span class="s"> primes: </span><span class="si">%s</span><span class="s">"</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></div>
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<title>test: primes.py annotate</title>
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<div class="main">
<h2><a href="/">test</a></h2>
<h3>annotate primes.py @ 0:853dcd4de2a6</h3>
<form class="search" action="/log">
<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>
<div class="description">a</div>
<table id="changesetEntry">
<tr>
<th class="author">author</th>
<td class="author">test</td>
</tr>
<tr>
<th class="date">date</th>
<td class="date">Thu Jan 01 00:00:00 1970 +0000 (many years ago)</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">
<table class="bigtable">
<tr>
<th class="annotate">rev</th>
<th class="line"> line source</th>
</tr>
<tr class="parity0">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#1"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l1" id="l1"> 1</a> <span class="c">#!/usr/bin/env python</span></td>
</tr>
<tr class="parity1">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#2"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l2" id="l2"> 2</a> </td>
</tr>
<tr class="parity0">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#3"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l3" id="l3"> 3</a> <span class="sd">"""Fun with generators. Corresponding Haskell implementation:</span></td>
</tr>
<tr class="parity1">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#4"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l4" id="l4"> 4</a> </td>
</tr>
<tr class="parity0">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#5"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l5" id="l5"> 5</a> <span class="sd">primes = 2 : sieve [3, 5..]</span></td>
</tr>
<tr class="parity1">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#6"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l6" id="l6"> 6</a> <span class="sd"> where sieve (p:ns) = p : sieve [n | n <- ns, mod n p /= 0]</span></td>
</tr>
<tr class="parity0">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#7"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l7" id="l7"> 7</a> <span class="sd">"""</span></td>
</tr>
<tr class="parity1">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#8"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l8" id="l8"> 8</a> </td>
</tr>
<tr class="parity0">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#9"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l9" id="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>
<tr class="parity1">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#10"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l10" id="l10"> 10</a> </td>
</tr>
<tr class="parity0">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#11"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l11" id="l11"> 11</a> <span class="kn">def</span> <span class="nf">primes</span><span class="p">():</span></td>
</tr>
<tr class="parity1">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#12"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l12" id="l12"> 12</a> <span class="sd">"""Generate all primes."""</span></td>
</tr>
<tr class="parity0">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#13"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l13" id="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 class="parity1">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#14"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l14" id="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>
<tr class="parity0">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#15"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l15" id="l15"> 15</a> <span class="c"># It is important to yield *here* in order to stop the</span></td>
</tr>
<tr class="parity1">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#16"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l16" id="l16"> 16</a> <span class="c"># infinite recursion.</span></td>
</tr>
<tr class="parity0">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#17"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l17" id="l17"> 17</a> <span class="kn">yield</span> <span class="n">p</span></td>
</tr>
<tr class="parity1">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#18"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l18" id="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="mf">0</span><span class="p">,</span> <span class="n">ns</span><span class="p">)</span></td>
</tr>
<tr class="parity0">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#19"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l19" id="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 class="parity1">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#20"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l20" id="l20"> 20</a> <span class="kn">yield</span> <span class="n">n</span></td>
</tr>
<tr class="parity0">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#21"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l21" id="l21"> 21</a> </td>
</tr>
<tr class="parity1">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#22"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l22" id="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="mf">2</span> <span class="o">==</span> <span class="mf">1</span><span class="p">,</span> <span class="n">count</span><span class="p">())</span></td>
</tr>
<tr class="parity0">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#23"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l23" id="l23"> 23</a> <span class="kn">return</span> <span class="n">chain</span><span class="p">([</span><span class="mf">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"><</span> <span class="mf">3</span><span class="p">,</span> <span class="n">odds</span><span class="p">)))</span></td>
</tr>
<tr class="parity1">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#24"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l24" id="l24"> 24</a> </td>
</tr>
<tr class="parity0">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#25"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l25" id="l25"> 25</a> <span class="kn">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">"__main__"</span><span class="p">:</span></td>
</tr>
<tr class="parity1">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#26"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l26" id="l26"> 26</a> <span class="kn">import</span> <span class="nn">sys</span></td>
</tr>
<tr class="parity0">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#27"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l27" id="l27"> 27</a> <span class="kn">try</span><span class="p">:</span></td>
</tr>
<tr class="parity1">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#28"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l28" id="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="mf">1</span><span class="p">])</span></td>
</tr>
<tr class="parity0">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#29"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l29" id="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 class="parity1">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#30"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l30" id="l30"> 30</a> <span class="n">n</span> <span class="o">=</span> <span class="mf">10</span></td>
</tr>
<tr class="parity0">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#31"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l31" id="l31"> 31</a> <span class="n">p</span> <span class="o">=</span> <span class="n">primes</span><span class="p">()</span></td>
</tr>
<tr class="parity1">
<td class="annotate">
<a href="/annotate/853dcd4de2a6/primes.py#32"
title="853dcd4de2a6: a">test@0</a>
</td>
<td class="source"><a href="#l32" id="l32"> 32</a> <span class="kn">print</span> <span class="s">"The first </span><span class="si">%d</span><span class="s"> primes: </span><span class="si">%s</span><span class="s">"</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>
</table>
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