Mercurial > hg
view tests/test-highlight.t @ 30442:41a8106789ca
util: implement zstd compression engine
Now that zstd is vendored and being built (in some configurations), we
can implement a compression engine for zstd!
The zstd engine is a little different from existing engines. Because
it may not always be present, we have to defer load the module in case
importing it fails. We facilitate this via a cached property that holds
a reference to the module or None. The "available" method is
implemented to reflect reality.
The zstd engine declares its ability to handle bundles using the
"zstd" human name and the "ZS" internal name. The latter was chosen
because internal names are 2 characters (by only convention I think)
and "ZS" seems reasonable.
The engine, like others, supports specifying the compression level.
However, there are no consumers of this API that yet pass in that
argument. I have plans to change that, so stay tuned.
Since all we need to do to support bundle generation with a new
compression engine is implement and register the compression engine,
bundle generation with zstd "just works!" Tests demonstrating this
have been added.
How does performance of zstd for bundle generation compare? On the
mozilla-unified repo, `hg bundle --all -t <engine>-v2` yields the
following on my i7-6700K on Linux:
engine CPU time bundle size vs orig size throughput
none 97.0s 4,054,405,584 100.0% 41.8 MB/s
bzip2 (l=9) 393.6s 975,343,098 24.0% 10.3 MB/s
gzip (l=6) 184.0s 1,140,533,074 28.1% 22.0 MB/s
zstd (l=1) 108.2s 1,119,434,718 27.6% 37.5 MB/s
zstd (l=2) 111.3s 1,078,328,002 26.6% 36.4 MB/s
zstd (l=3) 113.7s 1,011,823,727 25.0% 35.7 MB/s
zstd (l=4) 116.0s 1,008,965,888 24.9% 35.0 MB/s
zstd (l=5) 121.0s 977,203,148 24.1% 33.5 MB/s
zstd (l=6) 131.7s 927,360,198 22.9% 30.8 MB/s
zstd (l=7) 139.0s 912,808,505 22.5% 29.2 MB/s
zstd (l=12) 198.1s 854,527,714 21.1% 20.5 MB/s
zstd (l=18) 681.6s 789,750,690 19.5% 5.9 MB/s
On compression, zstd for bundle generation delivers:
* better compression than gzip with significantly less CPU utilization
* better than bzip2 compression ratios while still being significantly
faster than gzip
* ability to aggressively tune compression level to achieve
significantly smaller bundles
That last point is important. With clone bundles, a server can
pre-generate a bundle file, upload it to a static file server, and
redirect clients to transparently download it during clone. The server
could choose to produce a zstd bundle with the highest compression
settings possible. This would take a very long time - a magnitude
longer than a typical zstd bundle generation - but the result would
be hundreds of megabytes smaller! For the clone volume we do at
Mozilla, this could translate to petabytes of bandwidth savings
per year and faster clones (due to smaller transfer size).
I don't have detailed numbers to report on decompression. However,
zstd decompression is fast: >1 GB/s output throughput on this machine,
even through the Python bindings. And it can do that regardless of the
compression level of the input. By the time you have enough data to
worry about overhead of decompression, you have plenty of other things
to worry about performance wise.
zstd is wins all around. I can't wait to implement support for it
on the wire protocol and in revlogs.
| author | Gregory Szorc <gregory.szorc@gmail.com> |
|---|---|
| date | Fri, 11 Nov 2016 01:10:07 -0800 |
| parents | d86b54d9bb0c |
| children | 011122b3b1c4 |
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#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 $ (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: 06824edf55d0 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/06824edf55d0">06824edf55d0</a> <span class="tag">tip</span> </h3> <form class="search" action="/log"> <p><input name="rev" id="search1" type="text" size="30" /></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">test</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"> <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">"""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 <- ns, mod n p /= 0]</span></span><a href="#l6"></a> <span id="l7"><span class="sd">"""</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">"""Generate all primes."""</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"><</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">"__main__"</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">"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></span><a href="#l32"></a> <span id="l33"></span><a href="#l33"></a></pre> </div> </div> </div> <script type="text/javascript">process_dates()</script> </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-annotate/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/06824edf55d0">06824edf55d0</a> <span class="tag">tip</span> </h3> <form class="search" action="/log"> <p><input name="rev" id="search1" type="text" size="30" /></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">test</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"> <table class="bigtable"> <thead> <tr> <th class="annotate">rev</th> <th class="line"> line source</th> </tr> </thead> <tbody class="stripes2"> <tr id="l1" class="thisrev"> <td class="annotate parity0"> <a href="/annotate/06824edf55d0/primes.py#l1"> 0 </a> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l1"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l1"> 1</a> <span class="c">#!/usr/bin/env python</span></td> </tr> <tr id="l2" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l2"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l2"> 2</a> </td> </tr> <tr id="l3" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l3"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l3"> 3</a> <span class="sd">"""Fun with generators. Corresponding Haskell implementation:</span></td> </tr> <tr id="l4" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l4"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l4"> 4</a> </td> </tr> <tr id="l5" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l5"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l5"> 5</a> <span class="sd">primes = 2 : sieve [3, 5..]</span></td> </tr> <tr id="l6" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l6"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l6"> 6</a> <span class="sd"> where sieve (p:ns) = p : sieve [n | n <- ns, mod n p /= 0]</span></td> </tr> <tr id="l7" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l7"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l7"> 7</a> <span class="sd">"""</span></td> </tr> <tr id="l8" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l8"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l8"> 8</a> </td> </tr> <tr id="l9" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l9"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </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> <tr id="l10" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l10"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l10"> 10</a> </td> </tr> <tr id="l11" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l11"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </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" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l12"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l12"> 12</a> <span class="sd">"""Generate all primes."""</span></td> </tr> <tr id="l13" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l13"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </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" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l14"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </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> <tr id="l15" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l15"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l15"> 15</a> <span class="c"># It is important to yield *here* in order to stop the</span></td> </tr> <tr id="l16" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l16"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l16"> 16</a> <span class="c"># infinite recursion.</span></td> </tr> <tr id="l17" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l17"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l17"> 17</a> <span class="kn">yield</span> <span class="n">p</span></td> </tr> <tr id="l18" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l18"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </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> <tr id="l19" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l19"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <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" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l20"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l20"> 20</a> <span class="kn">yield</span> <span class="n">n</span></td> </tr> <tr id="l21" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l21"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l21"> 21</a> </td> </tr> <tr id="l22" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l22"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </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" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l23"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </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"><</span> <span class="mi">3</span><span class="p">,</span> <span class="n">odds</span><span class="p">)))</span></td> </tr> <tr id="l24" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l24"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l24"> 24</a> </td> </tr> <tr id="l25" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l25"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </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">"__main__"</span><span class="p">:</span></td> </tr> <tr id="l26" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l26"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l26"> 26</a> <span class="kn">import</span> <span class="nn">sys</span></td> </tr> <tr id="l27" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l27"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#l27"> 27</a> <span class="kn">try</span><span class="p">:</span></td> </tr> <tr id="l28" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l28"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </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" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l29"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </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" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l30"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </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" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l31"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </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" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l32"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </td> <td class="source"><a href="#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> <tr id="l33" class="thisrev"> <td class="annotate parity0"> <div class="annotate-info"> <div> <a href="/annotate/06824edf55d0/primes.py#l33"> 06824edf55d0</a> a </div> <div><em>test</em></div> <div>parents: </div> <a href="/diff/06824edf55d0/primes.py">diff</a> <a href="/rev/06824edf55d0">changeset</a> </div> </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 ..