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<?xml version='1.0' encoding='UTF-8'?> |
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<!DOCTYPE sections SYSTEM "/dtd/book.dtd"> |
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<!-- The content of this document is licensed under the CC-BY-SA license --> |
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<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-portage-diverttree.xml,v 1.13 2006/11/01 23:49:39 nightmorph Exp $ --> |
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<sections> |
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|
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<abstract> |
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"Diverting from the Official Tree" gives you some tips and tricks on how to use |
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your own Portage tree, how to synchronise only the categories you want, inject |
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packages and more. |
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</abstract> |
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|
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<version>1.6</version> |
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<date>2007-02-26</date> |
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|
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<section> |
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<title>Using a Portage Tree Subset</title> |
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<subsection> |
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<title>Excluding Packages/Categories</title> |
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<body> |
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|
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<p> |
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You can selectively update certain categories/packages and ignore the other |
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categories/packages. We achieve this by having <c>rsync</c> exclude |
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categories/packages during the <c>emerge --sync</c> step. |
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</p> |
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|
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<p> |
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You need to define the name of the file that contains the exclude patterns in |
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the <c>--exclude-from</c> variable in your <path>/etc/make.conf</path>. |
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</p> |
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|
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<pre caption="Defining the exclude file in /etc/make.conf"> |
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PORTAGE_RSYNC_EXTRA_OPTS="--exclude-from=/etc/portage/rsync_excludes" |
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</pre> |
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|
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<pre caption="Excluding all games in /etc/portage/rsync_excludes"> |
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games-*/* |
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</pre> |
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|
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<p> |
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Note however that this may lead to dependency issues since new, allowed packages |
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might depend on new but excluded packages. |
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</p> |
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|
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</body> |
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</subsection> |
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</section> |
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<section> |
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<title>Adding Unofficial Ebuilds</title> |
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<subsection> |
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<title>Defining a Portage Overlay Directory</title> |
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<body> |
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|
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<p> |
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You can ask Portage to use ebuilds that are not officially available through the |
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Portage tree. Create a new directory (for instance |
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<path>/usr/local/portage</path>) in which you store the 3rd-party ebuilds. Use |
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the same directory structure as the official Portage tree! |
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</p> |
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|
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<p> |
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Then define PORTDIR_OVERLAY in <path>/etc/make.conf</path> and have it point to |
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the previously defined directory. When you use Portage now, it will take those |
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ebuilds into account as well without removing/overwriting those ebuilds the next |
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time you run <c>emerge --sync</c>. |
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</p> |
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|
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</body> |
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</subsection> |
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<subsection> |
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<title>Working with Several Overlays</title> |
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<body> |
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|
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<p> |
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For the powerusers who develop on several overlays, test packages before they |
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hit the Portage tree or just want to use unofficial ebuilds from various |
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sources, the <c>app-portage/gentoolkit-dev</c> package brings you |
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<c>gensync</c>, a tool to help you keep the overlay repositories up to date. |
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</p> |
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|
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<p> |
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With <c>gensync</c> you can update all the repositories at once, or select just |
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a few of them. Each repository should have a <path>.syncsource</path> file in |
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the <path>/etc/gensync/</path> configuration directory which contains the |
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repository location, name, ID, etc. |
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</p> |
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|
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<p> |
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Suppose you have two additional repositories called <c>java</c> (for the |
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in-development java ebuilds) and <c>entapps</c> (for the applications developed |
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in-house for your enterprise). You can update those repositories with the |
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following command: |
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</p> |
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|
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<pre caption="Using gensync to update a few repositories"> |
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# <i>gensync java entapps</i> |
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</pre> |
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|
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</body> |
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</subsection> |
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</section> |
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<section> |
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<title>Non-Portage Maintained Software</title> |
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<subsection> |
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<title>Using Portage with Self-Maintained Software</title> |
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<body> |
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|
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<p> |
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In some cases you want to configure, install and maintain software yourself |
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without having Portage automate the process for you, even though Portage |
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can provide the software titles. Known cases are kernel sources and nvidia |
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drivers. You can configure Portage so it knows that a certain package is |
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manually installed on your system. This process is called <e>injecting</e> and |
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supported by Portage through the |
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<path>/etc/portage/profile/package.provided</path> file. |
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</p> |
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|
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<p> |
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For instance, if you want to inform Portage about |
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<c>gentoo-sources-2.6.11.6</c> which you've installed manually, add the |
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following line to <path>/etc/portage/profile/package.provided</path>: |
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</p> |
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|
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<pre caption="Example line for package.provided"> |
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sys-kernel/gentoo-sources-2.6.11.6 |
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</pre> |
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|
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</body> |
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</subsection> |
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</section> |
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</sections> |
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