revset: add optional offset argument to limit() predicate
It's common for GUI or web frontend to fetch chunk of revisions per batch
size. Previously it was possible only if revisions were sorted by revision
number.
$ hg log -r 'limit({revspec} & :{last_known}, 101)'
So this patch introduces a general way to retrieve chunk of revisions after
skipping offset revisions.
$ hg log -r 'limit({revspec}, 100, {last_count})'
This is a dumb implementation. We can optimize it for baseset and spanset
later.
#require serve
Test chains of near empty directories, terminating 3 different ways:
- a1: file at level 4 (deepest)
- b1: two dirs at level 3
- d1: file at level 2
Set up the repo
$ hg init test
$ cd test
$ mkdir -p a1/a2/a3/a4
$ mkdir -p b1/b2/b3/b4
$ mkdir -p b1/b2/b3/c4
$ mkdir -p d1/d2/d3/d4
$ echo foo > a1/a2/a3/a4/foo
$ echo foo > b1/b2/b3/b4/foo
$ echo foo > b1/b2/b3/c4/foo
$ echo foo > d1/d2/d3/d4/foo
$ echo foo > d1/d2/foo
$ hg ci -Ama
adding a1/a2/a3/a4/foo
adding b1/b2/b3/b4/foo
adding b1/b2/b3/c4/foo
adding d1/d2/d3/d4/foo
adding d1/d2/foo
$ hg serve -n test -p $HGPORT -d --pid-file=hg.pid -E errors.log
$ cat hg.pid >> $DAEMON_PIDS
manifest with descending (paper)
$ get-with-headers.py 127.0.0.1:$HGPORT 'file'
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>
<title>test: c9f45f7a1659 /</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 class="active">browse</li>
</ul>
<ul>
</ul>
<ul>
<li><a href="/help">help</a></li>
</ul>
</div>
<div class="main">
<h2 class="breadcrumb"><a href="/">Mercurial</a> </h2>
<h3>
directory / @ 0:<a href="/rev/c9f45f7a1659">c9f45f7a1659</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>
<table class="bigtable">
<thead>
<tr>
<th class="name">name</th>
<th class="size">size</th>
<th class="permissions">permissions</th>
</tr>
</thead>
<tbody class="stripes2">
<tr class="fileline">
<td class="name"><a href="/file/tip/">[up]</a></td>
<td class="size"></td>
<td class="permissions">drwxr-xr-x</td>
</tr>
<tr class="fileline">
<td class="name">
<a href="/file/tip/a1">
<img src="/static/coal-folder.png" alt="dir."/> a1/
</a>
<a href="/file/tip/a1/a2/a3/a4">
a2/a3/a4
</a>
</td>
<td class="size"></td>
<td class="permissions">drwxr-xr-x</td>
</tr>
<tr class="fileline">
<td class="name">
<a href="/file/tip/b1">
<img src="/static/coal-folder.png" alt="dir."/> b1/
</a>
<a href="/file/tip/b1/b2/b3">
b2/b3
</a>
</td>
<td class="size"></td>
<td class="permissions">drwxr-xr-x</td>
</tr>
<tr class="fileline">
<td class="name">
<a href="/file/tip/d1">
<img src="/static/coal-folder.png" alt="dir."/> d1/
</a>
<a href="/file/tip/d1/d2">
d2
</a>
</td>
<td class="size"></td>
<td class="permissions">drwxr-xr-x</td>
</tr>
</tbody>
</table>
</div>
</div>
<script type="text/javascript">process_dates()</script>
</body>
</html>
manifest with descending (coal)
$ get-with-headers.py 127.0.0.1:$HGPORT 'file?style=coal'
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" />
<link rel="stylesheet" href="/static/style-extra-coal.css" type="text/css" />
<script type="text/javascript" src="/static/mercurial.js"></script>
<title>test: c9f45f7a1659 /</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?style=coal">log</a></li>
<li><a href="/graph/tip?style=coal">graph</a></li>
<li><a href="/tags?style=coal">tags</a></li>
<li><a href="/bookmarks?style=coal">bookmarks</a></li>
<li><a href="/branches?style=coal">branches</a></li>
</ul>
<ul>
<li><a href="/rev/tip?style=coal">changeset</a></li>
<li class="active">browse</li>
</ul>
<ul>
</ul>
<ul>
<li><a href="/help?style=coal">help</a></li>
</ul>
</div>
<div class="main">
<h2 class="breadcrumb"><a href="/">Mercurial</a> </h2>
<h3>
directory / @ 0:<a href="/rev/c9f45f7a1659?style=coal">c9f45f7a1659</a>
<span class="tag">tip</span>
</h3>
<form class="search" action="/log">
<input type="hidden" name="style" value="coal" />
<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>
<table class="bigtable">
<thead>
<tr>
<th class="name">name</th>
<th class="size">size</th>
<th class="permissions">permissions</th>
</tr>
</thead>
<tbody class="stripes2">
<tr class="fileline">
<td class="name"><a href="/file/tip/?style=coal">[up]</a></td>
<td class="size"></td>
<td class="permissions">drwxr-xr-x</td>
</tr>
<tr class="fileline">
<td class="name">
<a href="/file/tip/a1?style=coal">
<img src="/static/coal-folder.png" alt="dir."/> a1/
</a>
<a href="/file/tip/a1/a2/a3/a4?style=coal">
a2/a3/a4
</a>
</td>
<td class="size"></td>
<td class="permissions">drwxr-xr-x</td>
</tr>
<tr class="fileline">
<td class="name">
<a href="/file/tip/b1?style=coal">
<img src="/static/coal-folder.png" alt="dir."/> b1/
</a>
<a href="/file/tip/b1/b2/b3?style=coal">
b2/b3
</a>
</td>
<td class="size"></td>
<td class="permissions">drwxr-xr-x</td>
</tr>
<tr class="fileline">
<td class="name">
<a href="/file/tip/d1?style=coal">
<img src="/static/coal-folder.png" alt="dir."/> d1/
</a>
<a href="/file/tip/d1/d2?style=coal">
d2
</a>
</td>
<td class="size"></td>
<td class="permissions">drwxr-xr-x</td>
</tr>
</tbody>
</table>
</div>
</div>
<script type="text/javascript">process_dates()</script>
</body>
</html>
manifest with descending (monoblue)
$ get-with-headers.py 127.0.0.1:$HGPORT 'file?style=monoblue'
200 Script output follows
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<link rel="icon" href="/static/hgicon.png" type="image/png" />
<meta name="robots" content="index, nofollow"/>
<link rel="stylesheet" href="/static/style-monoblue.css" type="text/css" />
<script type="text/javascript" src="/static/mercurial.js"></script>
<title>test: files</title>
<link rel="alternate" type="application/atom+xml" href="/atom-log" title="Atom feed for test"/>
<link rel="alternate" type="application/rss+xml" href="/rss-log" title="RSS feed for test"/>
</head>
<body>
<div id="container">
<div class="page-header">
<h1 class="breadcrumb"><a href="/">Mercurial</a> / files</h1>
<form action="/log">
<input type="hidden" name="style" value="monoblue" />
<dl class="search">
<dt><label>Search: </label></dt>
<dd><input type="text" name="rev" /></dd>
</dl>
</form>
<ul class="page-nav">
<li><a href="/summary?style=monoblue">summary</a></li>
<li><a href="/shortlog?style=monoblue">shortlog</a></li>
<li><a href="/changelog?style=monoblue">changelog</a></li>
<li><a href="/graph/tip?style=monoblue">graph</a></li>
<li><a href="/tags?style=monoblue">tags</a></li>
<li><a href="/bookmarks?style=monoblue">bookmarks</a></li>
<li><a href="/branches?style=monoblue">branches</a></li>
<li class="current">files</li>
<li><a href="/help?style=monoblue">help</a></li>
</ul>
</div>
<ul class="submenu">
<li><a href="/rev/tip?style=monoblue">changeset</a></li>
</ul>
<h2 class="no-link no-border">files</h2>
<p class="files">/ <span class="logtags"><span class="branchtag" title="default">default</span> <span class="tagtag" title="tip">tip</span> </span></p>
<table>
<tr class="parity0">
<td>drwxr-xr-x</td>
<td></td>
<td></td>
<td><a href="/file/tip/?style=monoblue">[up]</a></td>
<td class="link"> </td>
</tr>
<tr class="parity1">
<td>drwxr-xr-x</td>
<td></td>
<td></td>
<td>
<a href="/file/tip/a1?style=monoblue">a1</a>
<a href="/file/tip/a1/a2/a3/a4?style=monoblue">a2/a3/a4</a>
</td>
<td><a href="/file/tip/a1?style=monoblue">files</a></td>
</tr>
<tr class="parity0">
<td>drwxr-xr-x</td>
<td></td>
<td></td>
<td>
<a href="/file/tip/b1?style=monoblue">b1</a>
<a href="/file/tip/b1/b2/b3?style=monoblue">b2/b3</a>
</td>
<td><a href="/file/tip/b1?style=monoblue">files</a></td>
</tr>
<tr class="parity1">
<td>drwxr-xr-x</td>
<td></td>
<td></td>
<td>
<a href="/file/tip/d1?style=monoblue">d1</a>
<a href="/file/tip/d1/d2?style=monoblue">d2</a>
</td>
<td><a href="/file/tip/d1?style=monoblue">files</a></td>
</tr>
</table>
<script type="text/javascript">process_dates()</script>
<div class="page-footer">
<p>Mercurial Repository: test</p>
<ul class="rss-logo">
<li><a href="/rss-log">RSS</a></li>
<li><a href="/atom-log">Atom</a></li>
</ul>
</div>
<div id="powered-by">
<p><a href="https://mercurial-scm.org/" title="Mercurial"><img src="/static/hglogo.png" width=75 height=90 border=0 alt="mercurial" /></a></p>
</div>
</div>
</body>
</html>
manifest with descending (gitweb)
$ get-with-headers.py 127.0.0.1:$HGPORT 'file?style=gitweb'
200 Script output follows
<?xml version="1.0" encoding="ascii"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" 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-gitweb.css" type="text/css" />
<script type="text/javascript" src="/static/mercurial.js"></script>
<title>test: files</title>
<link rel="alternate" type="application/atom+xml"
href="/atom-log" title="Atom feed for test"/>
<link rel="alternate" type="application/rss+xml"
href="/rss-log" title="RSS feed for test"/>
</head>
<body>
<div class="page_header">
<a href="https://mercurial-scm.org/" title="Mercurial" style="float: right;">Mercurial</a>
<a href="/">Mercurial</a> / files
</div>
<div class="page_nav">
<a href="/summary?style=gitweb">summary</a> |
<a href="/shortlog?style=gitweb">shortlog</a> |
<a href="/log?style=gitweb">changelog</a> |
<a href="/graph?style=gitweb">graph</a> |
<a href="/tags?style=gitweb">tags</a> |
<a href="/bookmarks?style=gitweb">bookmarks</a> |
<a href="/branches?style=gitweb">branches</a> |
files |
<a href="/rev/tip?style=gitweb">changeset</a> |
<a href="/help?style=gitweb">help</a>
<br/>
</div>
<div class="title">/ <span class="logtags"><span class="branchtag" title="default">default</span> <span class="tagtag" title="tip">tip</span> </span></div>
<table cellspacing="0">
<tr class="parity0">
<td style="font-family:monospace">drwxr-xr-x</td>
<td style="font-family:monospace"></td>
<td style="font-family:monospace"></td>
<td><a href="/file/tip/?style=gitweb">[up]</a></td>
<td class="link"> </td>
</tr>
<tr class="parity1">
<td style="font-family:monospace">drwxr-xr-x</td>
<td style="font-family:monospace"></td>
<td style="font-family:monospace"></td>
<td>
<a href="/file/tip/a1?style=gitweb">a1</a>
<a href="/file/tip/a1/a2/a3/a4?style=gitweb">a2/a3/a4</a>
</td>
<td class="link">
<a href="/file/tip/a1?style=gitweb">files</a>
</td>
</tr>
<tr class="parity0">
<td style="font-family:monospace">drwxr-xr-x</td>
<td style="font-family:monospace"></td>
<td style="font-family:monospace"></td>
<td>
<a href="/file/tip/b1?style=gitweb">b1</a>
<a href="/file/tip/b1/b2/b3?style=gitweb">b2/b3</a>
</td>
<td class="link">
<a href="/file/tip/b1?style=gitweb">files</a>
</td>
</tr>
<tr class="parity1">
<td style="font-family:monospace">drwxr-xr-x</td>
<td style="font-family:monospace"></td>
<td style="font-family:monospace"></td>
<td>
<a href="/file/tip/d1?style=gitweb">d1</a>
<a href="/file/tip/d1/d2?style=gitweb">d2</a>
</td>
<td class="link">
<a href="/file/tip/d1?style=gitweb">files</a>
</td>
</tr>
</table>
<script type="text/javascript">process_dates()</script>
<div class="page_footer">
<div class="page_footer_text">test</div>
<div class="rss_logo">
<a href="/rss-log">RSS</a>
<a href="/atom-log">Atom</a>
</div>
<br />
</div>
</body>
</html>
manifest with descending (spartan)
$ get-with-headers.py 127.0.0.1:$HGPORT 'file?style=spartan'
200 Script output follows
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<link rel="icon" href="/static/hgicon.png" type="image/png">
<meta name="robots" content="index, nofollow" />
<link rel="stylesheet" href="/static/style.css" type="text/css" />
<script type="text/javascript" src="/static/mercurial.js"></script>
<title>test: files for changeset c9f45f7a1659</title>
</head>
<body>
<div class="buttons">
<a href="/log/tip?style=spartan">changelog</a>
<a href="/shortlog/tip?style=spartan">shortlog</a>
<a href="/graph/tip?style=spartan">graph</a>
<a href="/tags?style=spartan">tags</a>
<a href="/branches?style=spartan">branches</a>
<a href="/rev/tip?style=spartan">changeset</a>
<a href="/help?style=spartan">help</a>
</div>
<h2><a href="/">Mercurial</a> / files for changeset <a href="/rev/c9f45f7a1659">c9f45f7a1659</a>: /</h2>
<table cellpadding="0" cellspacing="0">
<tr class="parity0">
<td><tt>drwxr-xr-x</tt>
<td>
<td>
<td><a href="/file/tip/?style=spartan">[up]</a>
</tr>
<tr class="parity1">
<td><tt>drwxr-xr-x</tt>
<td>
<td>
<td>
<a href="/file/tip/a1?style=spartan">a1/</a>
<a href="/file/tip/a1/a2/a3/a4?style=spartan">
a2/a3/a4
</a>
<tr class="parity0">
<td><tt>drwxr-xr-x</tt>
<td>
<td>
<td>
<a href="/file/tip/b1?style=spartan">b1/</a>
<a href="/file/tip/b1/b2/b3?style=spartan">
b2/b3
</a>
<tr class="parity1">
<td><tt>drwxr-xr-x</tt>
<td>
<td>
<td>
<a href="/file/tip/d1?style=spartan">d1/</a>
<a href="/file/tip/d1/d2?style=spartan">
d2
</a>
</table>
<script type="text/javascript">process_dates()</script>
<div class="logo">
<a href="https://mercurial-scm.org/">
<img src="/static/hglogo.png" width=75 height=90 border=0 alt="mercurial"></a>
</div>
</body>
</html>
$ cat errors.log
$ cd ..