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to templates. DO NOT USE THIS HTML FILE AS YOUR TEMPLATE! |
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<meta name="generator" content="Docutils 0.4: http://docutils.sourceforge.net/" /> |
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<title>GLEP 35 -- Automated consistency check for ebuilds</title> |
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<style type="text/css"> |
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/* |
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:Author: David Goodger |
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:Contact: goodger@users.sourceforge.net |
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antarus |
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:date: $Date: 2006/10/10 20:25:14 $ |
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:version: $Revision: 1.2 $ |
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:copyright: This stylesheet has been placed in the public domain. |
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1.1 |
</head> |
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<table class="navigation" cellpadding="0" cellspacing="0" |
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width="100%" border="0"> |
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<tr><td class="navicon" width="150" height="35"> |
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<a href="http://www.gentoo.org/" title="Gentoo Linux Home Page"> |
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<img src="http://www.gentoo.org/images/gentoo-new.gif" alt="[Gentoo]" |
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border="0" width="150" height="35" /></a></td> |
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<td class="textlinks" align="left"> |
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[<b><a href="http://www.gentoo.org/">Gentoo Linux Home</a></b>] |
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antarus |
1.3 |
[<b><a href="http://www.gentoo.org/proj/en/glep/">GLEP Index</a></b>] |
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g2boojum |
1.2 |
[<b><a href="http://www.gentoo.org/proj/en/glep/glep-0035.txt">GLEP Source</a></b>] |
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g2boojum |
1.1 |
</td></tr></table> |
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<table class="rfc2822 docutils field-list" frame="void" rules="none"> |
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1.1 |
<col class="field-name" /> |
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<col class="field-body" /> |
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<tbody valign="top"> |
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<tr class="field"><th class="field-name">GLEP:</th><td class="field-body">35</td> |
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</tr> |
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<tr class="field"><th class="field-name">Title:</th><td class="field-body">Automated consistency check for ebuilds</td> |
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</tr> |
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<tr class="field"><th class="field-name">Version:</th><td class="field-body">1.1</td> |
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</tr> |
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g2boojum |
1.2 |
<tr class="field"><th class="field-name">Last-Modified:</th><td class="field-body"><a class="reference" href="http://www.gentoo.org/cgi-bin/viewcvs.cgi/xml/htdocs/proj/en/glep/glep-0035.txt?cvsroot=gentoo">2005/03/12 20:26:01</a></td> |
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1.1 |
</tr> |
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<tr class="field"><th class="field-name">Author:</th><td class="field-body">Adrian Lambeck <adrian at basicsedv.de>,</td> |
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</tr> |
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<tr class="field"><th class="field-name">Status:</th><td class="field-body">Draft</td> |
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</tr> |
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<tr class="field"><th class="field-name">Type:</th><td class="field-body">Standards Track</td> |
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</tr> |
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g2boojum |
1.2 |
<tr class="field"><th class="field-name">Content-Type:</th><td class="field-body"><a class="reference" href="glep-0002.html">text/x-rst</a></td> |
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1.1 |
</tr> |
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<tr class="field"><th class="field-name">Created:</th><td class="field-body">12-Mar-2005</td> |
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</tr> |
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<tr class="field"><th class="field-name">Post-History:</th><td class="field-body">12-Mar-2005</td> |
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</tr> |
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</tbody> |
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</table> |
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<hr /> |
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g2boojum |
1.2 |
<div class="contents topic"> |
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<p class="topic-title first"><a id="contents" name="contents">Contents</a></p> |
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1.1 |
<ul class="simple"> |
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<li><a class="reference" href="#abstract" id="id5" name="id5">Abstract</a></li> |
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<li><a class="reference" href="#motivation" id="id6" name="id6">Motivation</a></li> |
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<li><a class="reference" href="#specification" id="id7" name="id7">Specification</a></li> |
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<li><a class="reference" href="#implementation" id="id8" name="id8">Implementation</a></li> |
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<li><a class="reference" href="#backwards-compatibility" id="id9" name="id9">Backwards Compatibility</a></li> |
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<li><a class="reference" href="#id1" id="id10" name="id10">References</a></li> |
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</ul> |
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</div> |
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1.2 |
<div class="section"> |
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<h1><a class="toc-backref" href="#id5" id="abstract" name="abstract">Abstract</a></h1> |
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1.1 |
<p>This proposal is meant to enhance productivity for Gentoo developers. |
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It aims to reduce the number of trivial bugs by automatically detecting them |
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through a consistency check that is performed before checking and on a regular |
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basis through the whole tree. |
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Why bother with trivial bugs when automated tests find them ? |
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Save time and improve quality !</p> |
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</div> |
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g2boojum |
1.2 |
<div class="section"> |
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<h1><a class="toc-backref" href="#id6" id="motivation" name="motivation">Motivation</a></h1> |
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1.1 |
<p>When browsing <a class="reference" href="http://bugs.gentoo.org">bugs.gentoo.org</a> <a class="footnote-reference" href="#id2" id="id3" name="id3">[1]</a> you will find Bugs that take away a good |
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amount of scarce developing time that could be used otherwise. These are |
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trivial bugs, i.e. wrong SRC_URI or cycles in DEPEND. Even worst - these bugs |
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are sometimes reported several times so that they need to be marked as |
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dublicates. Bugs of that kind are easy to find and easy to fix. By using |
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automatic checks on a regular schedule these bugs can be found. Users have to |
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be asked NOT to commit these bugs to <a class="reference" href="http://bugs.gentoo.org">bugs.gentoo.org</a> <a class="footnote-reference" href="#id2" id="id4" name="id4">[1]</a>. So there will |
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(hopefully) be fewer bugs that need to be checked and assigned and they might |
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get fixed faster.</p> |
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<p>The Bugs found should be kept in an automatically generated list so that users |
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can see that the problem has been caught and that it is being worked on.</p> |
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</div> |
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g2boojum |
1.2 |
<div class="section"> |
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<h1><a class="toc-backref" href="#id7" id="specification" name="specification">Specification</a></h1> |
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g2boojum |
1.1 |
<p>Checks need to be performed for every ebuild.</p> |
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<p>A report needs to be generated</p> |
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<blockquote> |
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<ul class="simple"> |
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<li>links to the specific problem need to be included</li> |
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<li>reports need to be send to the groups responsible</li> |
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</ul> |
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</blockquote> |
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<p>Checks could be:</p> |
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<blockquote> |
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<ul class="simple"> |
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<li>cycles within DEPEND</li> |
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<li>invalid SRC_URI</li> |
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<li>"non-official" USE Flags</li> |
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<li>Packages within DEPEND that are "*" for the arch specified</li> |
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<li>broken shell scripts with invalid or missing commands</li> |
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<li>inheritance of eclasses</li> |
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<li>...</li> |
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</ul> |
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</blockquote> |
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<p>There might be other checks and tests that should be run |
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that have not come to my mind yet. Also I might have suggested something that |
| 355 |
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is not useful at all.</p> |
| 356 |
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<p>If there are major problems (needs to be defined) within an ebuild a possible |
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g2boojum |
1.2 |
action could be to disable the ebuild (with <tt class="docutils literal"><span class="pre">"-*"</span></tt>,) perhaps, and send a |
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g2boojum |
1.1 |
mail to the maintainer.</p> |
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<p>These kind of errors are not always the fault of the developers.</p> |
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<p>There should be no compilation or something like that. If an ebuild fails to |
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build somewhere then the user should file it as a bug as usual.</p> |
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</div> |
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g2boojum |
1.2 |
<div class="section"> |
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|
|
<h1><a class="toc-backref" href="#id8" id="implementation" name="implementation">Implementation</a></h1> |
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g2boojum |
1.1 |
<p>The functionality described could be implemented in three ways:</p> |
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|
|
<blockquote> |
| 367 |
|
|
<ol class="arabic"> |
| 368 |
g2boojum |
1.2 |
<li><dl class="first docutils"> |
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g2boojum |
1.1 |
<dt>On the developers machine ("client") where it is run before checking</dt> |
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g2boojum |
1.2 |
<dd><p class="first last">only for the ebuilds that changed. (client does not fit here because |
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g2boojum |
1.1 |
the server and client should not communicate with each other at all)</p> |
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|
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</dd> |
| 373 |
|
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</dl> |
| 374 |
|
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</li> |
| 375 |
|
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<li><p class="first">On the server where checks are run, i.e. once a week.</p> |
| 376 |
|
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</li> |
| 377 |
|
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<li><p class="first">On the "client" AND server</p> |
| 378 |
|
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</li> |
| 379 |
|
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</ol> |
| 380 |
|
|
<p>Of course there are cons and pros (what came to my mind so far)</p> |
| 381 |
|
|
<ol class="arabic"> |
| 382 |
g2boojum |
1.2 |
<li><dl class="first docutils"> |
| 383 |
|
|
<dt>pro:</dt> |
| 384 |
g2boojum |
1.1 |
<dd><ul class="first last simple"> |
| 385 |
|
|
<li>the tree can not become inconsistent in the first place (? see contra)</li> |
| 386 |
|
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<li>once an ebuild is checked there is no need to do this again</li> |
| 387 |
|
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<li>no dedicated machine necessary</li> |
| 388 |
|
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<li>generate traffic only once on one machine</li> |
| 389 |
|
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<li>errors that are caught here do not bother later on</li> |
| 390 |
|
|
</ul> |
| 391 |
|
|
</dd> |
| 392 |
|
|
<dt>contra:</dt> |
| 393 |
|
|
<dd><ul class="first last"> |
| 394 |
g2boojum |
1.2 |
<li><dl class="first docutils"> |
| 395 |
|
|
<dt>the consistency is based on the tool installed</dt> |
| 396 |
g2boojum |
1.1 |
<dd><p class="first last">(what happens when different devs use different versions ?)</p> |
| 397 |
|
|
</dd> |
| 398 |
|
|
</dl> |
| 399 |
|
|
</li> |
| 400 |
g2boojum |
1.2 |
<li><dl class="first docutils"> |
| 401 |
g2boojum |
1.1 |
<dt>what happens when the ebuild layout changes and some ebuilds</dt> |
| 402 |
|
|
<dd><p class="first last">do not get updated ?</p> |
| 403 |
|
|
</dd> |
| 404 |
|
|
</dl> |
| 405 |
|
|
</li> |
| 406 |
|
|
</ul> |
| 407 |
|
|
</dd> |
| 408 |
|
|
</dl> |
| 409 |
|
|
</li> |
| 410 |
g2boojum |
1.2 |
<li><dl class="first docutils"> |
| 411 |
g2boojum |
1.1 |
<dt>pro:</dt> |
| 412 |
|
|
<dd><ul class="first last simple"> |
| 413 |
|
|
<li>Properties of other ebuilds might change that fit while writing an ebuild</li> |
| 414 |
|
|
</ul> |
| 415 |
|
|
</dd> |
| 416 |
|
|
<dt>contra:</dt> |
| 417 |
|
|
<dd><ul class="first last"> |
| 418 |
|
|
<li><p class="first">the errors are found when the ebuild is already in CVS</p> |
| 419 |
|
|
</li> |
| 420 |
|
|
<li><p class="first">the whole tree needs to be checked</p> |
| 421 |
|
|
</li> |
| 422 |
g2boojum |
1.2 |
<li><dl class="first docutils"> |
| 423 |
g2boojum |
1.1 |
<dt>possibly creates a lot of traffic on every run</dt> |
| 424 |
|
|
<dd><p class="first last">(-> is there an FTP equivalent to HTTP`s HEAD ?)</p> |
| 425 |
|
|
</dd> |
| 426 |
|
|
</dl> |
| 427 |
|
|
</li> |
| 428 |
|
|
</ul> |
| 429 |
|
|
</dd> |
| 430 |
|
|
</dl> |
| 431 |
|
|
</li> |
| 432 |
|
|
<li><p class="first">see 1. and 2.</p> |
| 433 |
|
|
</li> |
| 434 |
|
|
</ol> |
| 435 |
|
|
</blockquote> |
| 436 |
g2boojum |
1.2 |
<p>My favorite is 3 . All properties are checked before check-in and |
| 437 |
g2boojum |
1.1 |
the properties that change might be checked on a regular basis on the server. |
| 438 |
|
|
Only solution 3 brings the best from 1 and 2 together while delivering the best result.</p> |
| 439 |
|
|
<p>I never had a look at portage source but I can imagine that there is a library |
| 440 |
|
|
that has everything that a developer needs to "query" ebuilds. If not, this |
| 441 |
|
|
would be a reason for another GLEP (?).</p> |
| 442 |
|
|
<p>For performance I would use a database (on the server) to store the whole tree before |
| 443 |
|
|
running the checks. This is not necessary for the "client".</p> |
| 444 |
|
|
</div> |
| 445 |
g2boojum |
1.2 |
<div class="section"> |
| 446 |
|
|
<h1><a class="toc-backref" href="#id9" id="backwards-compatibility" name="backwards-compatibility">Backwards Compatibility</a></h1> |
| 447 |
g2boojum |
1.1 |
<p>Not a problem for this GLEP.</p> |
| 448 |
|
|
</div> |
| 449 |
g2boojum |
1.2 |
<div class="section"> |
| 450 |
|
|
<h1><a class="toc-backref" href="#id10" id="id1" name="id1">References</a></h1> |
| 451 |
|
|
<table class="docutils footnote" frame="void" id="id2" rules="none"> |
| 452 |
g2boojum |
1.1 |
<colgroup><col class="label" /><col /></colgroup> |
| 453 |
|
|
<tbody valign="top"> |
| 454 |
|
|
<tr><td class="label"><a name="id2">[1]</a></td><td><em>(<a class="fn-backref" href="#id3">1</a>, <a class="fn-backref" href="#id4">2</a>)</em> <a class="reference" href="http://bugs.gentoo.org">http://bugs.gentoo.org</a></td></tr> |
| 455 |
|
|
</tbody> |
| 456 |
|
|
</table> |
| 457 |
|
|
</div> |
| 458 |
g2boojum |
1.2 |
|
| 459 |
g2boojum |
1.1 |
</div> |
| 460 |
g2boojum |
1.2 |
<div class="footer"> |
| 461 |
g2boojum |
1.1 |
<hr class="footer" /> |
| 462 |
|
|
<a class="reference" href="glep-0035.txt">View document source</a>. |
| 463 |
g2boojum |
1.2 |
Generated on: 2006-10-10 20:23 UTC. |
| 464 |
g2boojum |
1.1 |
Generated by <a class="reference" href="http://docutils.sourceforge.net/">Docutils</a> from <a class="reference" href="http://docutils.sourceforge.net/rst.html">reStructuredText</a> source. |
| 465 |
g2boojum |
1.2 |
|
| 466 |
g2boojum |
1.1 |
</div> |
| 467 |
|
|
</body> |
| 468 |
|
|
</html> |
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