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18 :date: $Date: 2006/10/10 20:25:14 $
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258 <body bgcolor="white">
259 <table class="navigation" cellpadding="0" cellspacing="0"
260 width="100%" border="0">
261 <tr><td class="navicon" width="150" height="35">
262 <a href="http://www.gentoo.org/" title="Gentoo Linux Home Page">
263 <img src="http://www.gentoo.org/images/gentoo-new.gif" alt="[Gentoo]"
264 border="0" width="150" height="35" /></a></td>
265 <td class="textlinks" align="left">
266 [<b><a href="http://www.gentoo.org/">Gentoo Linux Home</a></b>]
267 [<b><a href="http://www.gentoo.org/proj/en/glep/">GLEP Index</a></b>]
268 [<b><a href="http://www.gentoo.org/proj/en/glep/glep-0050.txt">GLEP Source</a></b>]
269 </td></tr></table>
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273 <tbody valign="top">
274 <tr class="field"><th class="field-name">GLEP:</th><td class="field-body">50</td>
275 </tr>
276 <tr class="field"><th class="field-name">Title:</th><td class="field-body">Supporting alternative package managers</td>
277 </tr>
278 <tr class="field"><th class="field-name">Version:</th><td class="field-body">1.3</td>
279 </tr>
280 <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-0050.txt?cvsroot=gentoo">2006/09/05 20:54:30</a></td>
281 </tr>
282 <tr class="field"><th class="field-name">Author:</th><td class="field-body">Grant Goodyear &lt;g2boojum&#32;&#97;t&#32;gentoo.org&gt;</td>
283 </tr>
284 <tr class="field"><th class="field-name">Status:</th><td class="field-body">Rejected</td>
285 </tr>
286 <tr class="field"><th class="field-name">Type:</th><td class="field-body">Standards Track</td>
287 </tr>
288 <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>
289 </tr>
290 <tr class="field"><th class="field-name">Created:</th><td class="field-body">22-May-2006</td>
291 </tr>
292 <tr class="field"><th class="field-name">Post-History:</th><td class="field-body">15-Jun-2006, 6-Sep-2006</td>
293 </tr>
294 </tbody>
295 </table>
296 <hr />
297 <div class="contents topic">
298 <p class="topic-title first"><a id="contents" name="contents">Contents</a></p>
299 <ul class="simple">
300 <li><a class="reference" href="#status" id="id2" name="id2">Status</a></li>
301 <li><a class="reference" href="#abstract" id="id3" name="id3">Abstract</a></li>
302 <li><a class="reference" href="#specification" id="id4" name="id4">Specification</a></li>
303 <li><a class="reference" href="#rationale" id="id5" name="id5">Rationale</a></li>
304 <li><a class="reference" href="#notes" id="id6" name="id6">Notes</a></li>
305 <li><a class="reference" href="#backwards-compatibility" id="id7" name="id7">Backwards Compatibility</a></li>
306 <li><a class="reference" href="#copyright" id="id8" name="id8">Copyright</a></li>
307 </ul>
308 </div>
309 <div class="section">
310 <h1><a class="toc-backref" href="#id2" id="status" name="status">Status</a></h1>
311 <p>The council rejected this GLEP in favor of starting from a package manager
312 API and requiring Gentoo package managers in the tree to support that
313 API. (That API is still pending, however.)</p>
314 </div>
315 <div class="section">
316 <h1><a class="toc-backref" href="#id3" id="abstract" name="abstract">Abstract</a></h1>
317 <p>To support alternatives to the official package manager (portage, at the time
318 of this writing), some sane ground rules need to be set. Specifically, no
319 alternative ebuild-based package manager may be added to the tree unless it
320 successfully works with all ebuilds supported by the official package manager.
321 Moreover, no ebuilds may be added to the tree unless they are supported
322 (without change) by the official package manager.</p>
323 </div>
324 <div class="section">
325 <h1><a class="toc-backref" href="#id4" id="specification" name="specification">Specification</a></h1>
326 <ul class="simple">
327 <li>No alternative ebuild-based package manager may be added
328 to the tree unless it successfully works with all ebuilds supported by
329 the official package manager. If an alternative package manager is
330 runtime incompatible with the official package manager, then it
331 must be masked and provide appropriate warnings.</li>
332 <li>No ebuilds may be added to the tree unless they are supported
333 (without change) by the official package manager.</li>
334 </ul>
335 </div>
336 <div class="section">
337 <h1><a class="toc-backref" href="#id5" id="rationale" name="rationale">Rationale</a></h1>
338 <p>The first rule sets a reasonable bar for adding an alternative package
339 manager to the tree. Note that if an ebuild currently in the tree
340 doesn't work with the official package manager, it isn't expected to
341 work with an alternative package manager either. The second rule
342 ensures that an alternative package manager cannot become a de-facto
343 requirement by supporting packages that the official package manager
344 cannot handle.</p>
345 <p>In order to keep this proposal as simple and focused as possible, it has
346 nothing to say about the process by which an alternative package manager
347 might one day become the official package manager. It is assumed that
348 sanity will reign, and no package manager will become official without
349 being able to build installation media, providing a transition path from
350 or to the existing official package manager, etcetera.</p>
351 </div>
352 <div class="section">
353 <h1><a class="toc-backref" href="#id6" id="notes" name="notes">Notes</a></h1>
354 <ul class="simple">
355 <li>An early criticism of this GLEP was that it fails to address eclasses and
356 profiles. As far as eclasses are concerned, my view is that the above rules
357 suffice, since eclasses only matter in their use in ebuilds. If a package
358 manager can effectively process all ebuilds, then it must be handling the
359 eclasses successfully, too. Profiles, on the other hand, are not addressed
360 here even implicitly.</li>
361 <li>Assuming the ebuild specification is successfully finished, then the
362 first rule should really replace &quot;all ebuilds supported by the official
363 package manager&quot; with &quot;all ebuilds that satisfy the ebuild spec&quot;.
364 Similarly, in rule two &quot;by the official package manager&quot; should
365 read &quot;by the official ebuild spec&quot;.</li>
366 </ul>
367 </div>
368 <div class="section">
369 <h1><a class="toc-backref" href="#id7" id="backwards-compatibility" name="backwards-compatibility">Backwards Compatibility</a></h1>
370 <p>Pretty much the whole point, and it's explicit here.</p>
371 </div>
372 <div class="section">
373 <h1><a class="toc-backref" href="#id8" id="copyright" name="copyright">Copyright</a></h1>
374 <p>This document has been placed in the public domain.</p>
375 </div>
376
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380 <a class="reference" href="glep-0050.txt">View document source</a>.
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