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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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<main class="md-main" data-md-component="main">
|
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|
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<div class="md-sidebar md-sidebar--primary" data-md-component="sidebar" data-md-type="navigation" >
|
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<div class="md-sidebar__scrollwrap">
|
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|
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|
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<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
|
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|
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<label class="md-nav__title" for="__drawer">
|
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|
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<a href="../../.." title="Aux Docs" class="md-nav__button md-logo" aria-label="Aux Docs" data-md-component="logo">
|
|||
|
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|
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|
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<img src="../../../assets/aux-logo.svg" alt="logo">
|
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|
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|
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</a>
|
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|
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Aux Docs
|
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|
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|
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<div class="md-nav__source">
|
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<a href="https://git.auxolotl.org/auxolotl/docs" title="Go to repository" class="md-source" data-md-component="source">
|
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|
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<div class="md-source__icon md-icon">
|
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M16.777 0a2.9 2.9 0 1 1-2.529 4.322H12.91a4.266 4.266 0 0 0-4.265 4.195v2.118a7.076 7.076 0 0 1 4.147-1.42l.118-.002h1.338a2.9 2.9 0 0 1 5.43 1.422 2.9 2.9 0 0 1-5.43 1.422H12.91a4.266 4.266 0 0 0-4.265 4.195v2.319A2.9 2.9 0 0 1 7.222 24 2.9 2.9 0 0 1 5.8 18.57V8.589a7.109 7.109 0 0 1 6.991-7.108l.118-.001h1.338A2.9 2.9 0 0 1 16.778 0ZM7.223 19.905a1.194 1.194 0 1 0 0 2.389 1.194 1.194 0 0 0 0-2.389Zm9.554-10.464a1.194 1.194 0 1 0 0 2.389 1.194 1.194 0 0 0 0-2.39Zm0-7.735a1.194 1.194 0 1 0 0 2.389 1.194 1.194 0 0 0 0-2.389Z"/></svg>
|
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|
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</div>
|
|||
|
|
<div class="md-source__repository">
|
|||
|
|
auxolotl/docs
|
|||
|
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</div>
|
|||
|
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</a>
|
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|
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</div>
|
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|
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<ul class="md-nav__list" data-md-scrollfix>
|
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|
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|
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|
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|
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|
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<span class="md-ellipsis">
|
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|
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Aux Documentation Hub
|
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|
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|
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|
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|
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|
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|
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|
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|
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<span class="md-ellipsis">
|
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TODO
|
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|
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|
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|
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|
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|
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|
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<a href="../../../Aux/" class="md-nav__link">
|
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|
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|
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|
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<span class="md-ellipsis">
|
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|
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Aux
|
|||
|
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|
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|
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|
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|
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<span class="md-nav__icon md-icon"></span>
|
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|
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|
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|
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|
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|
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|
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|
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|
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<span class="md-ellipsis">
|
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Lix
|
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|
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|
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|
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|
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|
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<label class="md-nav__link " for="__nav_4" id="__nav_4_label" tabindex="">
|
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|
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<span class="md-nav__icon md-icon"></span>
|
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</label>
|
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|
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|
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</div>
|
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|
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|
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<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_4_label" aria-expanded="true">
|
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|
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<label class="md-nav__title" for="__nav_4">
|
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|
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<span class="md-nav__icon md-icon"></span>
|
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|
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Lix
|
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|
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</label>
|
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|
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<ul class="md-nav__list" data-md-scrollfix>
|
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|
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<li class="md-nav__item">
|
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|
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<a href="../../glossary/" class="md-nav__link">
|
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|
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|
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|
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<span class="md-ellipsis">
|
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|
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Glossary
|
|||
|
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</span>
|
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|
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|
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</a>
|
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<li class="md-nav__item">
|
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<a href="../../quick-start/" class="md-nav__link">
|
|||
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|
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|
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|
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<span class="md-ellipsis">
|
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|
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Quick Start
|
|||
|
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</span>
|
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|
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|
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</a>
|
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|
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|
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|
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|
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|
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<span class="md-ellipsis">
|
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Advanced Topics
|
|||
|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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<div class="md-nav__link md-nav__container">
|
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|
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|
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|
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|
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<span class="md-ellipsis">
|
|||
|
|
Command Reference
|
|||
|
|
</span>
|
|||
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|
|||
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|
|||
|
|
</a>
|
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|
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|
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<label class="md-nav__link " for="__nav_4_5" id="__nav_4_5_label" tabindex="0">
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
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|
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|
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|
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|
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|
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|
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|
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<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_4_5_label" aria-expanded="true">
|
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|
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<label class="md-nav__title" for="__nav_4_5">
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
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|
|
Command Reference
|
|||
|
|
</label>
|
|||
|
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<ul class="md-nav__list" data-md-scrollfix>
|
|||
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|
|
<li class="md-nav__item md-nav__item--active">
|
|||
|
|
|
|||
|
|
<input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<label class="md-nav__link md-nav__link--active" for="__toc">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix.conf
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
</label>
|
|||
|
|
|
|||
|
|
<a href="./" class="md-nav__link md-nav__link--active">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix.conf
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<label class="md-nav__title" for="__toc">
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
Table of contents
|
|||
|
|
</label>
|
|||
|
|
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#description" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Description
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
<nav class="md-nav" aria-label="Description">
|
|||
|
|
<ul class="md-nav__list">
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#configuration-file" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Configuration file
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
<nav class="md-nav" aria-label="Configuration file">
|
|||
|
|
<ul class="md-nav__list">
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#file-format" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
File format
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#command-line-flags" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Command line flags
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#available-settings" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Available settings
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../env-common/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Common Environment Variables
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../experimental-commands/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Experimental Commands
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../main-commands/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Main Commands
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../nix-build/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-build
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../nix-channel/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-channel
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../nix-collect-garbage/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-collect-garbage
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../nix-copy-closure/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-copy-closure
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../nix-daemon/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-daemon
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../nix-hash/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-hash
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../nix-instantiate/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-instantiate
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../nix-prefetch-url/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-prefetch-url
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../nix-shell/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-shell
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../opt-common/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Common Options
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../utilities/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Utilities
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
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|
|||
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|
|||
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|
|||
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|
|||
|
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|
|||
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|
|||
|
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|
|||
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|
|||
|
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|
|||
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|
|||
|
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|
|||
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|
|||
|
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|
|||
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|
|||
|
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|
|||
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|
|||
|
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
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|
|||
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|
|||
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|
|||
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|
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|
|||
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|
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|
|||
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
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|
|||
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|
|||
|
|
<a href="../New-CLI/nix/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
New CLI
|
|||
|
|
</span>
|
|||
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|
|||
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|
|||
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|
|||
|
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<span class="md-nav__icon md-icon"></span>
|
|||
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|
|||
|
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</a>
|
|||
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|
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|
|||
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|||
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|
|||
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|
|||
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|
|||
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|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
|
<a href="../files/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Files
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
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|
|||
|
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|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
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|
|||
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|
|||
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|
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|
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</li>
|
|||
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|||
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|
|||
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|
|||
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|
|||
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|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../nix-env/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Nix env
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
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|
|||
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|
|||
|
|
|
|||
|
|
</li>
|
|||
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
|||
|
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|
|||
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|
|||
|
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|
|||
|
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|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../nix-store/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Nix store
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
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|
|||
|
|
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
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|
|||
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|
|||
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
|||
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|
|||
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|
|||
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|
|||
|
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|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../../Package-Management/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Package Management
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
|
|
|
|||
|
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|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../../architecture/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Architecture
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</li>
|
|||
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|
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|
|||
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|
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|
|||
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
|||
|
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|
|||
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|
|||
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|
|||
|
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|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../../contributing/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Contributing
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
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|
|||
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|
|||
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|
|||
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|
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|
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|
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|
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|
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../../installation/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
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Installation
|
|||
|
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|
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|
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|
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|
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|
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|
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|
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<a href="../../language/" class="md-nav__link">
|
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<span class="md-ellipsis">
|
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Language
|
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</span>
|
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<span class="md-nav__icon md-icon"></span>
|
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|
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|
|||
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|
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|
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|
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|
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<a href="../../protocols/" class="md-nav__link">
|
|||
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|
|||
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|
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|
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<span class="md-ellipsis">
|
|||
|
|
Protocols
|
|||
|
|
</span>
|
|||
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|
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|
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|
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<span class="md-nav__icon md-icon"></span>
|
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</a>
|
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|
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|
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|
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|
|||
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|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../../release-notes/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Release notes
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
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|
|||
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|
|||
|
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|
|||
|
|
</li>
|
|||
|
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|
|||
|
|
|
|||
|
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|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
</li>
|
|||
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../../../NixOS/appstream/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
NixOS
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</li>
|
|||
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
|||
|
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|
|||
|
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|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../../../Nixpkgs/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Nixpkgs
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
</nav>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
|
|||
|
|
<div class="md-sidebar__scrollwrap">
|
|||
|
|
<div class="md-sidebar__inner">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<label class="md-nav__title" for="__toc">
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
Table of contents
|
|||
|
|
</label>
|
|||
|
|
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#description" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Description
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
<nav class="md-nav" aria-label="Description">
|
|||
|
|
<ul class="md-nav__list">
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#configuration-file" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Configuration file
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
<nav class="md-nav" aria-label="Configuration file">
|
|||
|
|
<ul class="md-nav__list">
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#file-format" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
File format
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#command-line-flags" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Command line flags
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#available-settings" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Available settings
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
|
|||
|
|
</nav>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<div class="md-content" data-md-component="content">
|
|||
|
|
<article class="md-content__inner md-typeset">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<h1 id="nixconf"><code>nix.conf</code></h1>
|
|||
|
|
<p>Lix configuration file.</p>
|
|||
|
|
<h2 id="description">Description</h2>
|
|||
|
|
<p>Lix supports a variety of configuration settings, which are read from configuration files or taken as command line flags.</p>
|
|||
|
|
<h3 id="configuration-file">Configuration file</h3>
|
|||
|
|
<p>By default Lix reads settings from the following places, in that order:</p>
|
|||
|
|
<ol>
|
|||
|
|
<li>The system-wide configuration file <code>sysconfdir/nix/nix.conf</code> (i.e. <code>/etc/nix/nix.conf</code> on most systems), or <code>$NIX_CONF_DIR/nix.conf</code> if <a href="../env-common/#env-NIX_CONF_DIR"><code>NIX_CONF_DIR</code></a> is set.</li>
|
|||
|
|
</ol>
|
|||
|
|
<p>Values loaded in this file are not forwarded to the Nix daemon.
|
|||
|
|
The client assumes that the daemon has already loaded them.</p>
|
|||
|
|
<ol>
|
|||
|
|
<li>If <a href="../env-common/#env-NIX_USER_CONF_FILES"><code>NIX_USER_CONF_FILES</code></a> is set, then each path separated by <code>:</code> will be loaded in reverse order.</li>
|
|||
|
|
</ol>
|
|||
|
|
<p>Otherwise it will look for <code>nix/nix.conf</code> files in <code>XDG_CONFIG_DIRS</code> and <code>XDG_CONFIG_HOME</code>.
|
|||
|
|
If unset, <code>XDG_CONFIG_DIRS</code> defaults to <code>/etc/xdg</code>, and <code>XDG_CONFIG_HOME</code> defaults to <code>$HOME/.config</code> as per <a href="https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html">XDG Base Directory Specification</a>.</p>
|
|||
|
|
<ol>
|
|||
|
|
<li>If <a href="../env-common/#env-NIX_CONFIG"><code>NIX_CONFIG</code></a> is set, its contents are treated as the contents of a configuration file.</li>
|
|||
|
|
</ol>
|
|||
|
|
<h4 id="file-format">File format</h4>
|
|||
|
|
<p>Configuration files consist of <code>name = value</code> pairs, one per line.
|
|||
|
|
Comments start with a <code>#</code> character.</p>
|
|||
|
|
<p>Example:</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code>keep-outputs = true ## Nice for developers
|
|||
|
|
keep-derivations = true ## Idem
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p>Other files can be included with a line like <code>include <path></code>, where <code><path></code> is interpreted relative to the current configuration file.
|
|||
|
|
A missing file is an error unless <code>!include</code> is used instead.</p>
|
|||
|
|
<p>A configuration setting usually overrides any previous value.
|
|||
|
|
However, for settings that take a list of items, you can prefix the name of the setting by <code>extra-</code> to <em>append</em> to the previous value.</p>
|
|||
|
|
<p>For instance,</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code>substituters = a b
|
|||
|
|
extra-substituters = c d
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p>defines the <code>substituters</code> setting to be <code>a b c d</code>.</p>
|
|||
|
|
<p>Unknown option names are not an error, and are simply ignored with a warning.</p>
|
|||
|
|
<h3 id="command-line-flags">Command line flags</h3>
|
|||
|
|
<p>Configuration options can be set on the command line, overriding the values set in the <a href="#configuration-file">configuration file</a>:</p>
|
|||
|
|
<ul>
|
|||
|
|
<li>Every configuration setting has corresponding command line flag (e.g. <code>--max-jobs 16</code>).
|
|||
|
|
Boolean settings do not need an argument, and can be explicitly disabled with the <code>no-</code> prefix (e.g. <code>--keep-failed</code> and <code>--no-keep-failed</code>).</li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Unknown option names are invalid flags (unless there is already a flag with that name), and are rejected with an error.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li>The flag <code>--option <name> <value></code> is interpreted exactly like a <code><name> = <value></code> in a setting file.</li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Unknown option names are ignored with a warning.</p>
|
|||
|
|
<p>The <code>extra-</code> prefix is supported for settings that take a list of items (e.g. <code>--extra-trusted users alice</code> or <code>--option extra-trusted-users alice</code>).</p>
|
|||
|
|
<h2 id="available-settings">Available settings</h2>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-accept-flake-config"><a href="#conf-accept-flake-config"><code>accept-flake-config</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether to accept Lix configuration from the <code>nixConfig</code> attribute of
|
|||
|
|
a flake without prompting. This is almost always a very bad idea.</p>
|
|||
|
|
<p>Setting this setting as a trusted user allows Nix flakes to gain root
|
|||
|
|
access on your machine if they set one of the several
|
|||
|
|
trusted-user-only settings that execute commands as root.</p>
|
|||
|
|
<p>See <a href="../../installation/multi-user/">multi-user installations</a>
|
|||
|
|
for more details on the Lix security model.</p>
|
|||
|
|
<div class="admonition warning">
|
|||
|
|
<p class="admonition-title">Warning</p>
|
|||
|
|
<p>This setting is part of an
|
|||
|
|
<a href="../../contributing/experimental-features/">experimental feature</a>.</p>
|
|||
|
|
</div>
|
|||
|
|
<p>To change this setting, you need to make sure the corresponding experimental feature,
|
|||
|
|
<a href="../../contributing/experimental-features/#xp-feature-flakes"><code>flakes</code></a>,
|
|||
|
|
is enabled.
|
|||
|
|
For example, include the following in <a href="#"><code>nix.conf</code></a>:</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code>extra-experimental-features = flakes
|
|||
|
|
accept-flake-config = ...
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-access-tokens"><a href="#conf-access-tokens"><code>access-tokens</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Access tokens used to access protected GitHub, GitLab, or
|
|||
|
|
other locations requiring token-based authentication.</p>
|
|||
|
|
<p>Access tokens are specified as a string made up of
|
|||
|
|
space-separated <code>host=token</code> values. The specific token
|
|||
|
|
used is selected by matching the <code>host</code> portion against the
|
|||
|
|
"host" specification of the input. The actual use of the
|
|||
|
|
<code>token</code> value is determined by the type of resource being
|
|||
|
|
accessed:</p>
|
|||
|
|
<ul>
|
|||
|
|
<li>
|
|||
|
|
<p>Github: the token value is the OAUTH-TOKEN string obtained
|
|||
|
|
as the Personal Access Token from the Github server (see
|
|||
|
|
https://docs.github.com/en/developers/apps/building-oauth-apps/authorizing-oauth-apps).</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p>Gitlab: the token value is either the OAuth2 token or the
|
|||
|
|
Personal Access Token (these are different types tokens
|
|||
|
|
for gitlab, see
|
|||
|
|
https://docs.gitlab.com/12.10/ee/api/README.html#authentication).
|
|||
|
|
The <code>token</code> value should be <code>type:tokenstring</code> where
|
|||
|
|
<code>type</code> is either <code>OAuth2</code> or <code>PAT</code> to indicate which type
|
|||
|
|
of token is being specified.</p>
|
|||
|
|
</li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Example <code>~/.config/nix/nix.conf</code>:</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code>access-tokens = github.com=23ac...b289 gitlab.mycompany.com=PAT:A123Bp_Cd..EfG gitlab.com=OAuth2:1jklw3jk
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p>Example <code>~/code/flake.nix</code>:</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code>input<span class="o">.</span><span class="ss">foo</span> <span class="o">=</span> <span class="p">{</span>
|
|||
|
|
<span class="ss">type</span> <span class="o">=</span> <span class="s2">"gitlab"</span><span class="p">;</span>
|
|||
|
|
<span class="ss">host</span> <span class="o">=</span> <span class="s2">"gitlab.mycompany.com"</span><span class="p">;</span>
|
|||
|
|
<span class="ss">owner</span> <span class="o">=</span> <span class="s2">"mycompany"</span><span class="p">;</span>
|
|||
|
|
<span class="ss">repo</span> <span class="o">=</span> <span class="s2">"pro"</span><span class="p">;</span>
|
|||
|
|
<span class="p">};</span>
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p>This example specifies three tokens, one each for accessing
|
|||
|
|
github.com, gitlab.mycompany.com, and gitlab.com.</p>
|
|||
|
|
<p>The <code>input.foo</code> uses the "gitlab" fetcher, which might
|
|||
|
|
requires specifying the token type along with the token
|
|||
|
|
value.</p>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-allow-dirty"><a href="#conf-allow-dirty"><code>allow-dirty</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether to allow dirty Git/Mercurial trees.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>true</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-allow-import-from-derivation"><a href="#conf-allow-import-from-derivation"><code>allow-import-from-derivation</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>By default, Lix allows you to <code>import</code> from a derivation, allowing
|
|||
|
|
building at evaluation time. With this option set to false, Lix will
|
|||
|
|
throw an error when evaluating an expression that uses this feature,
|
|||
|
|
allowing users to ensure their evaluation will not require any
|
|||
|
|
builds to take place.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>true</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-allow-symlinked-store"><a href="#conf-allow-symlinked-store"><code>allow-symlinked-store</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to <code>true</code>, Lix will stop complaining if the store directory
|
|||
|
|
(typically /nix/store) contains symlink components.</p>
|
|||
|
|
<p>This risks making some builds "impure" because builders sometimes
|
|||
|
|
"canonicalise" paths by resolving all symlink components. Problems
|
|||
|
|
occur if those builds are then deployed to machines where /nix/store
|
|||
|
|
resolves to a different location from that of the build machine. You
|
|||
|
|
can enable this setting if you are sure you're not going to do that.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-allow-unsafe-native-code-during-evaluation"><a href="#conf-allow-unsafe-native-code-during-evaluation"><code>allow-unsafe-native-code-during-evaluation</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether builtin functions that allow executing native code should be enabled.</p>
|
|||
|
|
<p>In particular, this adds the <code>importNative</code> and <code>exec</code> builtins.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-allowed-impure-host-deps"><a href="#conf-allowed-impure-host-deps"><code>allowed-impure-host-deps</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Which prefixes to allow derivations to ask for access to (primarily for Darwin).</p>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-allowed-uris"><a href="#conf-allowed-uris"><code>allowed-uris</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>A list of URI prefixes to which access is allowed in restricted
|
|||
|
|
evaluation mode. For example, when set to
|
|||
|
|
<code>https://github.com/NixOS</code>, builtin functions such as <code>fetchGit</code> are
|
|||
|
|
allowed to access <code>https://github.com/NixOS/patchelf.git</code>.</p>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-allowed-users"><a href="#conf-allowed-users"><code>allowed-users</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>A list user names, separated by whitespace.
|
|||
|
|
These users are allowed to connect to the Nix daemon.</p>
|
|||
|
|
<p>You can specify groups by prefixing names with <code>@</code>.
|
|||
|
|
For instance, <code>@wheel</code> means all users in the <code>wheel</code> group.
|
|||
|
|
Also, you can allow all users by specifying <code>*</code>.</p>
|
|||
|
|
<div class="admonition note">
|
|||
|
|
<p class="admonition-title">Note</p>
|
|||
|
|
</div>
|
|||
|
|
<blockquote>
|
|||
|
|
<p>Trusted users (set in <a href="#conf-trusted-users"><code>trusted-users</code></a>) can always connect to the Nix daemon.</p>
|
|||
|
|
</blockquote>
|
|||
|
|
<p><strong>Default:</strong> <code>*</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-always-allow-substitutes"><a href="#conf-always-allow-substitutes"><code>always-allow-substitutes</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to <code>true</code>, Lix will ignore the <code>allowSubstitutes</code> attribute in
|
|||
|
|
derivations and always attempt to use available substituters.
|
|||
|
|
For more information on <code>allowSubstitutes</code>, see <a href="../../language/advanced-attributes/">the manual chapter on advanced attributes</a>.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-auto-allocate-uids"><a href="#conf-auto-allocate-uids"><code>auto-allocate-uids</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether to select UIDs for builds automatically, instead of using the
|
|||
|
|
users in <code>build-users-group</code>.</p>
|
|||
|
|
<p>UIDs are allocated starting at 872415232 (0x34000000) on Linux and 56930 on macOS.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-auto-optimise-store"><a href="#conf-auto-optimise-store"><code>auto-optimise-store</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to <code>true</code>, Lix automatically detects files in the store
|
|||
|
|
that have identical contents, and replaces them with hard links to
|
|||
|
|
a single copy. This saves disk space. If set to <code>false</code> (the
|
|||
|
|
default), you can still run <code>nix-store --optimise</code> to get rid of
|
|||
|
|
duplicate files.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-bash-prompt"><a href="#conf-bash-prompt"><code>bash-prompt</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>The bash prompt (<code>PS1</code>) in <code>nix develop</code> shells.</p>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-bash-prompt-prefix"><a href="#conf-bash-prompt-prefix"><code>bash-prompt-prefix</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Prefix prepended to the <code>PS1</code> environment variable in <code>nix develop</code> shells.</p>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-bash-prompt-suffix"><a href="#conf-bash-prompt-suffix"><code>bash-prompt-suffix</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Suffix appended to the <code>PS1</code> environment variable in <code>nix develop</code> shells.</p>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-build-hook"><a href="#conf-build-hook"><code>build-hook</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>The path to the helper program that executes remote builds.</p>
|
|||
|
|
<p>Lix communicates with the build hook over <code>stdio</code> using a custom protocol to request builds that cannot be performed directly by the Nix daemon.
|
|||
|
|
The default value is the internal Lix binary that implements remote building.</p>
|
|||
|
|
<blockquote>
|
|||
|
|
<p><strong>Important</strong></p>
|
|||
|
|
<p>Change this setting only if you really know what you’re doing.</p>
|
|||
|
|
</blockquote>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-build-poll-interval"><a href="#conf-build-poll-interval"><code>build-poll-interval</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>How often (in seconds) to poll for locks.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>5</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-build-users-group"><a href="#conf-build-users-group"><code>build-users-group</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>This options specifies the Unix group containing the Lix build user
|
|||
|
|
accounts. In multi-user Lix installations, builds should not be
|
|||
|
|
performed by the Lix account since that would allow users to
|
|||
|
|
arbitrarily modify the Nix store and database by supplying specially
|
|||
|
|
crafted builders; and they cannot be performed by the calling user
|
|||
|
|
since that would allow them to influence the build result.</p>
|
|||
|
|
<p>Therefore, if this option is non-empty and specifies a valid group,
|
|||
|
|
builds will be performed under the user accounts that are a member
|
|||
|
|
of the group specified here (as listed in <code>/etc/group</code>). Those user
|
|||
|
|
accounts should not be used for any other purpose!</p>
|
|||
|
|
<p>Lix will never run two builds under the same user account at the
|
|||
|
|
same time. This is to prevent an obvious security hole: a malicious
|
|||
|
|
user writing a Nix expression that modifies the build result of a
|
|||
|
|
legitimate Nix expression being built by another user. Therefore it
|
|||
|
|
is good to have as many Lix build user accounts as you can spare.
|
|||
|
|
(Remember: uids are cheap.)</p>
|
|||
|
|
<p>The build users should have permission to create files in the Nix
|
|||
|
|
store, but not delete them. Therefore, <code>/nix/store</code> should be owned
|
|||
|
|
by the Nix account, its group should be the group specified here,
|
|||
|
|
and its mode should be <code>1775</code>.</p>
|
|||
|
|
<p>If the build users group is empty, builds will be performed under
|
|||
|
|
the uid of the Lix process (that is, the uid of the caller if
|
|||
|
|
both <code>NIX_REMOTE</code> is either empty or <code>auto</code> and the Nix store is
|
|||
|
|
owned by that user, or, alternatively, the uid under which the Nix
|
|||
|
|
daemon runs if <code>NIX_REMOTE</code> is <code>daemon</code> or if it is <code>auto</code> and the
|
|||
|
|
store is not owned by the caller). Obviously, this should not be used
|
|||
|
|
with a nix daemon accessible to untrusted clients.</p>
|
|||
|
|
<p>For the avoidance of doubt, explicitly setting this to <em>empty</em> with a
|
|||
|
|
Lix daemon running as root means that builds will be executed as root
|
|||
|
|
with respect to the rest of the system.
|
|||
|
|
We intend to fix this: https://git.lix.systems/lix-project/lix/issues/242</p>
|
|||
|
|
<p>Defaults to <code>nixbld</code> when running as root, <em>empty</em> otherwise.</p>
|
|||
|
|
<p><strong>Default:</strong> <em>machine-specific</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-builders"><a href="#conf-builders"><code>builders</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>A semicolon-separated list of build machines.
|
|||
|
|
For the exact format and examples, see <a href="../../Advanced-Topics/distributed-builds/">the manual chapter on remote builds</a></p>
|
|||
|
|
<p><strong>Default:</strong> <code>@/dummy/machines</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-builders-use-substitutes"><a href="#conf-builders-use-substitutes"><code>builders-use-substitutes</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to <code>true</code>, Lix will instruct remote build machines to use
|
|||
|
|
their own binary substitutes if available. In practical terms, this
|
|||
|
|
means that remote hosts will fetch as many build dependencies as
|
|||
|
|
possible from their own substitutes (e.g, from <code>cache.nixos.org</code>),
|
|||
|
|
instead of waiting for this host to upload them all. This can
|
|||
|
|
drastically reduce build times if the network connection between
|
|||
|
|
this computer and the remote build host is slow.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-commit-lockfile-summary"><a href="#conf-commit-lockfile-summary"><code>commit-lockfile-summary</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>The commit summary to use when committing changed flake lock files. If
|
|||
|
|
empty, the summary is generated based on the action performed.</p>
|
|||
|
|
<div class="admonition warning">
|
|||
|
|
<p class="admonition-title">Warning</p>
|
|||
|
|
<p>This setting is part of an
|
|||
|
|
<a href="../../contributing/experimental-features/">experimental feature</a>.</p>
|
|||
|
|
</div>
|
|||
|
|
<p>To change this setting, you need to make sure the corresponding experimental feature,
|
|||
|
|
<a href="../../contributing/experimental-features/#xp-feature-flakes"><code>flakes</code></a>,
|
|||
|
|
is enabled.
|
|||
|
|
For example, include the following in <a href="#"><code>nix.conf</code></a>:</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code>extra-experimental-features = flakes
|
|||
|
|
commit-lockfile-summary = ...
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-compress-build-log"><a href="#conf-compress-build-log"><code>compress-build-log</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to <code>true</code> (the default), build logs written to
|
|||
|
|
<code>/nix/var/log/nix/drvs</code> will be compressed on the fly using bzip2.
|
|||
|
|
Otherwise, they will not be compressed.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>true</code></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>build-compress-log</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-connect-timeout"><a href="#conf-connect-timeout"><code>connect-timeout</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>The timeout (in seconds) for establishing connections in the
|
|||
|
|
binary cache substituter. It corresponds to <code>curl</code>’s
|
|||
|
|
<code>--connect-timeout</code> option. A value of 0 means no limit.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>0</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-cores"><a href="#conf-cores"><code>cores</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Sets the value of the <code>NIX_BUILD_CORES</code> environment variable in the
|
|||
|
|
invocation of builders. Builders can use this variable at their
|
|||
|
|
discretion to control the maximum amount of parallelism. For
|
|||
|
|
instance, in Nixpkgs, if the derivation attribute
|
|||
|
|
<code>enableParallelBuilding</code> is set to <code>true</code>, the builder passes the
|
|||
|
|
<code>-jN</code> flag to GNU Make. It can be overridden using the <code>--cores</code>
|
|||
|
|
command line switch and defaults to <code>1</code>. The value <code>0</code> means that
|
|||
|
|
the builder should use all available CPU cores in the system.</p>
|
|||
|
|
<p><strong>Default:</strong> <em>machine-specific</em></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>build-cores</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-debugger-on-trace"><a href="#conf-debugger-on-trace"><code>debugger-on-trace</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to true and the <code>--debugger</code> flag is given,
|
|||
|
|
<a href="../../language/builtins/#builtins-trace"><code>builtins.trace</code></a> will
|
|||
|
|
enter the debugger like
|
|||
|
|
<a href="../../language/builtins/#builtins-break"><code>builtins.break</code></a>.</p>
|
|||
|
|
<p>This is useful for debugging warnings in third-party Nix code.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-diff-hook"><a href="#conf-diff-hook"><code>diff-hook</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Absolute path to an executable capable of diffing build
|
|||
|
|
results. The hook is executed if <code>run-diff-hook</code> is true, and the
|
|||
|
|
output of a build is known to not be the same. This program is not
|
|||
|
|
executed to determine if two results are the same.</p>
|
|||
|
|
<p>The diff hook is executed by the same user and group who ran the
|
|||
|
|
build. However, the diff hook does not have write access to the
|
|||
|
|
store path just built.</p>
|
|||
|
|
<p>The diff hook program receives three parameters:</p>
|
|||
|
|
<ol>
|
|||
|
|
<li>
|
|||
|
|
<p>A path to the previous build's results</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p>A path to the current build's results</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p>The path to the build's derivation</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p>The path to the build's scratch directory. This directory will
|
|||
|
|
exist only if the build was run with <code>--keep-failed</code>.</p>
|
|||
|
|
</li>
|
|||
|
|
</ol>
|
|||
|
|
<p>The stderr and stdout output from the diff hook will not be
|
|||
|
|
displayed to the user. Instead, it will print to the nix-daemon's
|
|||
|
|
log.</p>
|
|||
|
|
<p>When using the Nix daemon, <code>diff-hook</code> must be set in the <code>nix.conf</code>
|
|||
|
|
configuration file, and cannot be passed at the command line.</p>
|
|||
|
|
<p><strong>Default:</strong> ``</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-download-attempts"><a href="#conf-download-attempts"><code>download-attempts</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>How often Lix will attempt to download a file before giving up.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>5</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-download-speed"><a href="#conf-download-speed"><code>download-speed</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Specify the maximum transfer rate in kilobytes per second you want
|
|||
|
|
Lix to use for downloads.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>0</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-enable-core-dumps"><a href="#conf-enable-core-dumps"><code>enable-core-dumps</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to <code>false</code> (the default), <code>RLIMIT_CORE</code> has a soft limit of zero.
|
|||
|
|
If set to <code>true</code>, the soft limit is infinite.</p>
|
|||
|
|
<p>The hard limit is always infinite.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-eval-cache"><a href="#conf-eval-cache"><code>eval-cache</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether to use the flake evaluation cache.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>true</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-eval-system"><a href="#conf-eval-system"><code>eval-system</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>This option defines
|
|||
|
|
<a href="../../language/builtin-constants/#builtins-currentSystem"><code>builtins.currentSystem</code></a>
|
|||
|
|
in the Nix language if it is set as a non-empty string.
|
|||
|
|
Otherwise, if it is defined as the empty string (the default), the value of the
|
|||
|
|
<a href="#conf-system"><code>system</code> </a>
|
|||
|
|
configuration setting is used instead.</p>
|
|||
|
|
<p>Unlike <code>system</code>, this setting does not change what kind of derivations can be built locally.
|
|||
|
|
This is useful for evaluating Nix code on one system to produce derivations to be built on another type of system.</p>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-experimental-features"><a href="#conf-experimental-features"><code>experimental-features</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Experimental features that are enabled.</p>
|
|||
|
|
<p>Example:</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code>experimental-features = nix-command flakes
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p>The following experimental features are available:</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><a href="../../contributing/experimental-features/#xp-feature-auto-allocate-uids"><code>auto-allocate-uids</code></a></li>
|
|||
|
|
<li><a href="../../contributing/experimental-features/#xp-feature-ca-derivations"><code>ca-derivations</code></a></li>
|
|||
|
|
<li><a href="../../contributing/experimental-features/#xp-feature-cgroups"><code>cgroups</code></a></li>
|
|||
|
|
<li><a href="../../contributing/experimental-features/#xp-feature-daemon-trust-override"><code>daemon-trust-override</code></a></li>
|
|||
|
|
<li><a href="../../contributing/experimental-features/#xp-feature-dynamic-derivations"><code>dynamic-derivations</code></a></li>
|
|||
|
|
<li><a href="../../contributing/experimental-features/#xp-feature-fetch-closure"><code>fetch-closure</code></a></li>
|
|||
|
|
<li><a href="../../contributing/experimental-features/#xp-feature-flakes"><code>flakes</code></a></li>
|
|||
|
|
<li><a href="../../contributing/experimental-features/#xp-feature-impure-derivations"><code>impure-derivations</code></a></li>
|
|||
|
|
<li><a href="../../contributing/experimental-features/#xp-feature-nix-command"><code>nix-command</code></a></li>
|
|||
|
|
<li><a href="../../contributing/experimental-features/#xp-feature-no-url-literals"><code>no-url-literals</code></a></li>
|
|||
|
|
<li><a href="../../contributing/experimental-features/#xp-feature-parse-toml-timestamps"><code>parse-toml-timestamps</code></a></li>
|
|||
|
|
<li><a href="../../contributing/experimental-features/#xp-feature-read-only-local-store"><code>read-only-local-store</code></a></li>
|
|||
|
|
<li><a href="../../contributing/experimental-features/#xp-feature-recursive-nix"><code>recursive-nix</code></a></li>
|
|||
|
|
<li><a href="../../contributing/experimental-features/#xp-feature-repl-automation"><code>repl-automation</code></a></li>
|
|||
|
|
<li><a href="../../contributing/experimental-features/#xp-feature-repl-flake"><code>repl-flake</code></a></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Experimental features are <a href="../../contributing/experimental-features/">further documented in the manual</a>.</p>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-extra-platforms"><a href="#conf-extra-platforms"><code>extra-platforms</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>System types of executables that can be run on this machine.</p>
|
|||
|
|
<p>Lix will only build a given <a href="../../language/derivations/">derivation</a> locally when its <code>system</code> attribute equals any of the values specified here or in the <a href="#conf-system"><code>system</code> option</a>.</p>
|
|||
|
|
<p>Setting this can be useful to build derivations locally on compatible machines:
|
|||
|
|
- <code>i686-linux</code> executables can be run on <code>x86_64-linux</code> machines (set by default)
|
|||
|
|
- <code>x86_64-darwin</code> executables can be run on macOS <code>aarch64-darwin</code> with Rosetta 2 (set by default where applicable)
|
|||
|
|
- <code>armv6</code> and <code>armv5tel</code> executables can be run on <code>armv7</code>
|
|||
|
|
- some <code>aarch64</code> machines can also natively run 32-bit ARM code
|
|||
|
|
- <code>qemu-user</code> may be used to support non-native platforms (though this
|
|||
|
|
may be slow and buggy)</p>
|
|||
|
|
<p>Build systems will usually detect the target platform to be the current physical system and therefore produce machine code incompatible with what may be intended in the derivation.
|
|||
|
|
You should design your derivation's <code>builder</code> accordingly and cross-check the results when using this option against natively-built versions of your derivation.</p>
|
|||
|
|
<p><strong>Default:</strong> <em>machine-specific</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-fallback"><a href="#conf-fallback"><code>fallback</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to <code>true</code>, Lix will fall back to building from source if a
|
|||
|
|
binary substitute fails. This is equivalent to the <code>--fallback</code>
|
|||
|
|
flag. The default is <code>false</code>.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>build-fallback</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-flake-registry"><a href="#conf-flake-registry"><code>flake-registry</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Path or URI of the global flake registry.</p>
|
|||
|
|
<p>URIs are deprecated. When set to 'vendored', defaults to a vendored
|
|||
|
|
copy of https://channels.nixos.org/flake-registry.json.</p>
|
|||
|
|
<p>When empty, disables the global flake registry.</p>
|
|||
|
|
<div class="admonition warning">
|
|||
|
|
<p class="admonition-title">Warning</p>
|
|||
|
|
<p>This setting is part of an
|
|||
|
|
<a href="../../contributing/experimental-features/">experimental feature</a>.</p>
|
|||
|
|
</div>
|
|||
|
|
<p>To change this setting, you need to make sure the corresponding experimental feature,
|
|||
|
|
<a href="../../contributing/experimental-features/#xp-feature-flakes"><code>flakes</code></a>,
|
|||
|
|
is enabled.
|
|||
|
|
For example, include the following in <a href="#"><code>nix.conf</code></a>:</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code>extra-experimental-features = flakes
|
|||
|
|
flake-registry = ...
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p><strong>Default:</strong> <code>vendored</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-fsync-metadata"><a href="#conf-fsync-metadata"><code>fsync-metadata</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to <code>true</code>, changes to the Nix store metadata (in
|
|||
|
|
<code>/nix/var/nix/db</code>) are synchronously flushed to disk. This improves
|
|||
|
|
robustness in case of system crashes, but reduces performance. The
|
|||
|
|
default is <code>true</code>.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>true</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-gc-reserved-space"><a href="#conf-gc-reserved-space"><code>gc-reserved-space</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Amount of reserved disk space for the garbage collector.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>8388608</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-hashed-mirrors"><a href="#conf-hashed-mirrors"><code>hashed-mirrors</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>A list of web servers used by <code>builtins.fetchurl</code> to obtain files by
|
|||
|
|
hash. Given a hash type <em>ht</em> and a base-16 hash <em>h</em>, Lix will try to
|
|||
|
|
download the file from <em>hashed-mirror</em>/<em>ht</em>/<em>h</em>. This allows files to
|
|||
|
|
be downloaded even if they have disappeared from their original URI.
|
|||
|
|
For example, given an example mirror <code>http://tarballs.nixos.org/</code>,
|
|||
|
|
when building the derivation</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code><span class="nb">builtins</span><span class="o">.</span>fetchurl <span class="p">{</span>
|
|||
|
|
<span class="ss">url</span> <span class="o">=</span> <span class="s2">"https://example.org/foo-1.2.3.tar.xz"</span><span class="p">;</span>
|
|||
|
|
<span class="ss">sha256</span> <span class="o">=</span> <span class="s2">"2c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae"</span><span class="p">;</span>
|
|||
|
|
<span class="p">}</span>
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p>Lix will attempt to download this file from
|
|||
|
|
<code>http://tarballs.nixos.org/sha256/2c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae</code>
|
|||
|
|
first. If it is not available there, if will try the original URI.</p>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-http-connections"><a href="#conf-http-connections"><code>http-connections</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>The maximum number of parallel TCP connections used to fetch
|
|||
|
|
files from binary caches and by other downloads. It defaults
|
|||
|
|
to 25. 0 means no limit.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>25</code></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>binary-caches-parallel-connections</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-http2"><a href="#conf-http2"><code>http2</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether to enable HTTP/2 support.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>true</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-id-count"><a href="#conf-id-count"><code>id-count</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>The number of UIDs/GIDs to use for dynamic ID allocation.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>8388608</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-ignore-try"><a href="#conf-ignore-try"><code>ignore-try</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to true, ignore exceptions inside 'tryEval' calls when evaluating nix expressions in
|
|||
|
|
debug mode (using the --debugger flag). By default the debugger will pause on all exceptions.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-ignored-acls"><a href="#conf-ignored-acls"><code>ignored-acls</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>A list of ACLs that should be ignored, normally Lix attempts to
|
|||
|
|
remove all ACLs from files and directories in the Nix store, but
|
|||
|
|
some ACLs like <code>security.selinux</code> or <code>system.nfs4_acl</code> can't be
|
|||
|
|
removed even by root. Therefore it's best to just ignore them.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>security.csm security.selinux system.nfs4_acl</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-impersonate-linux-26"><a href="#conf-impersonate-linux-26"><code>impersonate-linux-26</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether to impersonate a Linux 2.6 machine on newer kernels.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>build-impersonate-linux-26</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-keep-build-log"><a href="#conf-keep-build-log"><code>keep-build-log</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to <code>true</code> (the default), Lix will write the build log of a
|
|||
|
|
derivation (i.e. the standard output and error of its builder) to
|
|||
|
|
the directory <code>/nix/var/log/nix/drvs</code>. The build log can be
|
|||
|
|
retrieved using the command <code>nix-store -l path</code>.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>true</code></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>build-keep-log</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-keep-derivations"><a href="#conf-keep-derivations"><code>keep-derivations</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If <code>true</code> (default), the garbage collector will keep the derivations
|
|||
|
|
from which non-garbage store paths were built. If <code>false</code>, they will
|
|||
|
|
be deleted unless explicitly registered as a root (or reachable from
|
|||
|
|
other roots).</p>
|
|||
|
|
<p>Keeping derivation around is useful for querying and traceability
|
|||
|
|
(e.g., it allows you to ask with what dependencies or options a
|
|||
|
|
store path was built), so by default this option is on. Turn it off
|
|||
|
|
to save a bit of disk space (or a lot if <code>keep-outputs</code> is also
|
|||
|
|
turned on).</p>
|
|||
|
|
<p><strong>Default:</strong> <code>true</code></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>gc-keep-derivations</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-keep-env-derivations"><a href="#conf-keep-env-derivations"><code>keep-env-derivations</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If <code>false</code> (default), derivations are not stored in Nix user
|
|||
|
|
environments. That is, the derivations of any build-time-only
|
|||
|
|
dependencies may be garbage-collected.</p>
|
|||
|
|
<p>If <code>true</code>, when you add a Nix derivation to a user environment, the
|
|||
|
|
path of the derivation is stored in the user environment. Thus, the
|
|||
|
|
derivation will not be garbage-collected until the user environment
|
|||
|
|
generation is deleted (<code>nix-env --delete-generations</code>). To prevent
|
|||
|
|
build-time-only dependencies from being collected, you should also
|
|||
|
|
turn on <code>keep-outputs</code>.</p>
|
|||
|
|
<p>The difference between this option and <code>keep-derivations</code> is that
|
|||
|
|
this one is “sticky”: it applies to any user environment created
|
|||
|
|
while this option was enabled, while <code>keep-derivations</code> only applies
|
|||
|
|
at the moment the garbage collector is run.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>env-keep-derivations</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-keep-failed"><a href="#conf-keep-failed"><code>keep-failed</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether to keep temporary directories of failed builds.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-keep-going"><a href="#conf-keep-going"><code>keep-going</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether to keep building derivations when another build fails.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-keep-outputs"><a href="#conf-keep-outputs"><code>keep-outputs</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If <code>true</code>, the garbage collector will keep the outputs of
|
|||
|
|
non-garbage derivations. If <code>false</code> (default), outputs will be
|
|||
|
|
deleted unless they are GC roots themselves (or reachable from other
|
|||
|
|
roots).</p>
|
|||
|
|
<p>In general, outputs must be registered as roots separately. However,
|
|||
|
|
even if the output of a derivation is registered as a root, the
|
|||
|
|
collector will still delete store paths that are used only at build
|
|||
|
|
time (e.g., the C compiler, or source tarballs downloaded from the
|
|||
|
|
network). To prevent it from doing so, set this option to <code>true</code>.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>gc-keep-outputs</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-log-lines"><a href="#conf-log-lines"><code>log-lines</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>The number of lines of the tail of the log to show if a build fails.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>25</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-max-build-log-size"><a href="#conf-max-build-log-size"><code>max-build-log-size</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>This option defines the maximum number of bytes that a builder can
|
|||
|
|
write to its stdout/stderr. If the builder exceeds this limit, it’s
|
|||
|
|
killed. A value of <code>0</code> (the default) means that there is no limit.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>0</code></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>build-max-log-size</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-max-call-depth"><a href="#conf-max-call-depth"><code>max-call-depth</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>The maximum function call depth to allow before erroring.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>10000</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-max-free"><a href="#conf-max-free"><code>max-free</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>When a garbage collection is triggered by the <code>min-free</code> option, it
|
|||
|
|
stops as soon as <code>max-free</code> bytes are available. The default is
|
|||
|
|
infinity (i.e. delete all garbage).</p>
|
|||
|
|
<p><strong>Default:</strong> <code>-1</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-max-jobs"><a href="#conf-max-jobs"><code>max-jobs</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>This option defines the maximum number of jobs that Lix will try to
|
|||
|
|
build in parallel. The default is <code>1</code>. The special value <code>auto</code>
|
|||
|
|
causes Lix to use the number of CPUs in your system. <code>0</code> is useful
|
|||
|
|
when using remote builders to prevent any local builds (except for
|
|||
|
|
<code>preferLocalBuild</code> derivation attribute which executes locally
|
|||
|
|
regardless). It can be overridden using the <code>--max-jobs</code> (<code>-j</code>)
|
|||
|
|
command line switch.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>1</code></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>build-max-jobs</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-max-silent-time"><a href="#conf-max-silent-time"><code>max-silent-time</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>This option defines the maximum number of seconds that a builder can
|
|||
|
|
go without producing any data on standard output or standard error.
|
|||
|
|
This is useful (for instance in an automated build system) to catch
|
|||
|
|
builds that are stuck in an infinite loop, or to catch remote builds
|
|||
|
|
that are hanging due to network problems. It can be overridden using
|
|||
|
|
the <code>--max-silent-time</code> command line switch.</p>
|
|||
|
|
<p>The value <code>0</code> means that there is no timeout. This is also the
|
|||
|
|
default.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>0</code></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>build-max-silent-time</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-max-substitution-jobs"><a href="#conf-max-substitution-jobs"><code>max-substitution-jobs</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>This option defines the maximum number of substitution jobs that Nix
|
|||
|
|
will try to run in parallel. The default is <code>16</code>. The minimum value
|
|||
|
|
one can choose is <code>1</code> and lower values will be interpreted as <code>1</code>.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>16</code></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>substitution-max-jobs</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-min-free"><a href="#conf-min-free"><code>min-free</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>When free disk space in <code>/nix/store</code> drops below <code>min-free</code> during a
|
|||
|
|
build, Lix performs a garbage-collection until <code>max-free</code> bytes are
|
|||
|
|
available or there is no more garbage. A value of <code>0</code> (the default)
|
|||
|
|
disables this feature.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>0</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-min-free-check-interval"><a href="#conf-min-free-check-interval"><code>min-free-check-interval</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Number of seconds between checking free disk space.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>5</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-nar-buffer-size"><a href="#conf-nar-buffer-size"><code>nar-buffer-size</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Maximum size of NARs before spilling them to disk.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>33554432</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-narinfo-cache-negative-ttl"><a href="#conf-narinfo-cache-negative-ttl"><code>narinfo-cache-negative-ttl</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>The TTL in seconds for negative lookups. If a store path is queried
|
|||
|
|
from a substituter but was not found, there will be a negative
|
|||
|
|
lookup cached in the local disk cache database for the specified
|
|||
|
|
duration.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>3600</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-narinfo-cache-positive-ttl"><a href="#conf-narinfo-cache-positive-ttl"><code>narinfo-cache-positive-ttl</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>The TTL in seconds for positive lookups. If a store path is queried
|
|||
|
|
from a substituter, the result of the query will be cached in the
|
|||
|
|
local disk cache database including some of the NAR metadata. The
|
|||
|
|
default TTL is a month, setting a shorter TTL for positive lookups
|
|||
|
|
can be useful for binary caches that have frequent garbage
|
|||
|
|
collection, in which case having a more frequent cache invalidation
|
|||
|
|
would prevent trying to pull the path again and failing with a hash
|
|||
|
|
mismatch if the build isn't reproducible.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>2592000</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-netrc-file"><a href="#conf-netrc-file"><code>netrc-file</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to an absolute path to a <code>netrc</code> file, Lix will use the HTTP
|
|||
|
|
authentication credentials in this file when trying to download from
|
|||
|
|
a remote host through HTTP or HTTPS. Defaults to
|
|||
|
|
<code>$NIX_CONF_DIR/netrc</code>.</p>
|
|||
|
|
<p>The <code>netrc</code> file consists of a list of accounts in the following
|
|||
|
|
format:</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code> machine my-machine
|
|||
|
|
login my-username
|
|||
|
|
password my-password
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p>For the exact syntax, see <a href="https://ec.haxx.se/usingcurl-netrc.html">the <code>curl</code>
|
|||
|
|
documentation</a>.</p>
|
|||
|
|
<div class="admonition note">
|
|||
|
|
<p class="admonition-title">Note</p>
|
|||
|
|
</div>
|
|||
|
|
<blockquote>
|
|||
|
|
<p>This must be an absolute path, and <code>~</code> is not resolved. For
|
|||
|
|
example, <code>~/.netrc</code> won't resolve to your home directory's
|
|||
|
|
<code>.netrc</code>.</p>
|
|||
|
|
</blockquote>
|
|||
|
|
<p><strong>Default:</strong> <code>/dummy/netrc</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-nix-path"><a href="#conf-nix-path"><code>nix-path</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>List of directories to be searched for <code><...></code> file references</p>
|
|||
|
|
<p>In particular, outside of <a href="#conf-pure-eval">pure evaluation mode</a>, this determines the value of
|
|||
|
|
<a href="../../language/builtin-constants/#builtins-nixPath"><code>builtins.nixPath</code></a>.</p>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-plugin-files"><a href="#conf-plugin-files"><code>plugin-files</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>A list of plugin files to be loaded by Nix. Each of these files will
|
|||
|
|
be dlopened by Nix, allowing them to affect execution through static
|
|||
|
|
initialization. In particular, these plugins may construct static
|
|||
|
|
instances of RegisterPrimOp to add new primops or constants to the
|
|||
|
|
expression language, RegisterStoreImplementation to add new store
|
|||
|
|
implementations, RegisterCommand to add new subcommands to the <code>nix</code>
|
|||
|
|
command, and RegisterSetting to add new nix config settings. See the
|
|||
|
|
constructors for those types for more details.</p>
|
|||
|
|
<p>Warning! These APIs are inherently unstable and may change from
|
|||
|
|
release to release.</p>
|
|||
|
|
<p>Since these files are loaded into the same address space as Nix
|
|||
|
|
itself, they must be DSOs compatible with the instance of Nix
|
|||
|
|
running at the time (i.e. compiled against the same headers, not
|
|||
|
|
linked to any incompatible libraries). They should not be linked to
|
|||
|
|
any Lix libs directly, as those will be available already at load
|
|||
|
|
time.</p>
|
|||
|
|
<p>If an entry in the list is a directory, all files in the directory
|
|||
|
|
are loaded as plugins (non-recursively).</p>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-post-build-hook"><a href="#conf-post-build-hook"><code>post-build-hook</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Optional. The path to a program to execute after each build.</p>
|
|||
|
|
<p>This option is only settable in the global <code>nix.conf</code>, or on the
|
|||
|
|
command line by trusted users.</p>
|
|||
|
|
<p>When using the nix-daemon, the daemon executes the hook as <code>root</code>.
|
|||
|
|
If the nix-daemon is not involved, the hook runs as the user
|
|||
|
|
executing the nix-build.</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code>- The hook executes after an evaluation-time build.
|
|||
|
|
|
|||
|
|
- The hook does not execute on substituted paths.
|
|||
|
|
|
|||
|
|
- The hook's output always goes to the user's terminal.
|
|||
|
|
|
|||
|
|
- If the hook fails, the build succeeds but no further builds
|
|||
|
|
execute.
|
|||
|
|
|
|||
|
|
- The hook executes synchronously, and blocks other builds from
|
|||
|
|
progressing while it runs.
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p>The program executes with no arguments. The program's environment
|
|||
|
|
contains the following environment variables:</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code>- `DRV_PATH`
|
|||
|
|
The derivation for the built paths.
|
|||
|
|
|
|||
|
|
Example:
|
|||
|
|
`/nix/store/5nihn1a7pa8b25l9zafqaqibznlvvp3f-bash-4.4-p23.drv`
|
|||
|
|
|
|||
|
|
- `OUT_PATHS`
|
|||
|
|
Output paths of the built derivation, separated by a space
|
|||
|
|
character.
|
|||
|
|
|
|||
|
|
Example:
|
|||
|
|
`/nix/store/zf5lbh336mnzf1nlswdn11g4n2m8zh3g-bash-4.4-p23-dev
|
|||
|
|
/nix/store/rjxwxwv1fpn9wa2x5ssk5phzwlcv4mna-bash-4.4-p23-doc
|
|||
|
|
/nix/store/6bqvbzjkcp9695dq0dpl5y43nvy37pq1-bash-4.4-p23-info
|
|||
|
|
/nix/store/r7fng3kk3vlpdlh2idnrbn37vh4imlj2-bash-4.4-p23-man
|
|||
|
|
/nix/store/xfghy8ixrhz3kyy6p724iv3cxji088dx-bash-4.4-p23`.
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-pre-build-hook"><a href="#conf-pre-build-hook"><code>pre-build-hook</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set, the path to a program that can set extra derivation-specific
|
|||
|
|
settings for this system. This is used for settings that can't be
|
|||
|
|
captured by the derivation model itself and are too variable between
|
|||
|
|
different versions of the same system to be hard-coded into nix.</p>
|
|||
|
|
<p>The hook is passed the derivation path and, if sandboxes are
|
|||
|
|
enabled, the sandbox directory. It can then modify the sandbox and
|
|||
|
|
send a series of commands to modify various settings to stdout. The
|
|||
|
|
currently recognized commands are:</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code>- `extra-sandbox-paths`
|
|||
|
|
Pass a list of files and directories to be included in the
|
|||
|
|
sandbox for this build. One entry per line, terminated by an
|
|||
|
|
empty line. Entries have the same format as `sandbox-paths`.
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-preallocate-contents"><a href="#conf-preallocate-contents"><code>preallocate-contents</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether to preallocate files when writing objects with known size.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-print-missing"><a href="#conf-print-missing"><code>print-missing</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether to print what paths need to be built or downloaded.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>true</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-pure-eval"><a href="#conf-pure-eval"><code>pure-eval</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Pure evaluation mode ensures that the result of Nix expressions is fully determined by explicitly declared inputs, and not influenced by external state:</p>
|
|||
|
|
<ul>
|
|||
|
|
<li>Restrict file system and network access to files specified by cryptographic hash</li>
|
|||
|
|
<li>Disable <a href="../../language/builtin-constants/#builtins-currentSystem"><code>builtins.currentSystem</code></a> and <a href="../../language/builtin-constants/#builtins-currentTime"><code>builtins.currentTime</code></a></li>
|
|||
|
|
</ul>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-repl-overlays"><a href="#conf-repl-overlays"><code>repl-overlays</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>A list of files containing Nix expressions that can be used to add
|
|||
|
|
default bindings to <a href="../New-CLI/nix3-repl/"><code>nix
|
|||
|
|
repl</code></a> sessions.</p>
|
|||
|
|
<p>Each file is called with three arguments:
|
|||
|
|
1. An <a href="../../language/values/#attribute-set">attribute set</a>
|
|||
|
|
containing at least a
|
|||
|
|
<a href="../../language/builtin-constants/#builtins-currentSystem"><code>currentSystem</code></a>
|
|||
|
|
attribute (this is identical to
|
|||
|
|
<a href="../../language/builtin-constants/#builtins-currentSystem"><code>builtins.currentSystem</code></a>,
|
|||
|
|
except that it's available in
|
|||
|
|
<a href="./#conf-pure-eval"><code>pure-eval</code></a>
|
|||
|
|
mode).
|
|||
|
|
2. The top-level bindings produced by the previous <code>repl-overlays</code>
|
|||
|
|
value (or the default top-level bindings).
|
|||
|
|
3. The final top-level bindings produced by calling all
|
|||
|
|
<code>repl-overlays</code>.</p>
|
|||
|
|
<p>For example, the following file would alias <code>pkgs</code> to
|
|||
|
|
<code>legacyPackages.${info.currentSystem}</code> (if that attribute is defined):</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code>info<span class="p">:</span> final<span class="p">:</span> prev<span class="p">:</span>
|
|||
|
|
<span class="k">if</span> prev <span class="o">?</span> legacyPackages
|
|||
|
|
<span class="o">&&</span> prev<span class="o">.</span>legacyPackages <span class="o">?</span> <span class="si">${</span>info<span class="o">.</span>currentSystem<span class="si">}</span>
|
|||
|
|
<span class="k">then</span>
|
|||
|
|
<span class="p">{</span>
|
|||
|
|
<span class="ss">pkgs</span> <span class="o">=</span> prev<span class="o">.</span>legacyPackages<span class="o">.</span><span class="si">${</span>info<span class="o">.</span>currentSystem<span class="si">}</span><span class="p">;</span>
|
|||
|
|
<span class="p">}</span>
|
|||
|
|
<span class="k">else</span>
|
|||
|
|
<span class="p">{</span> <span class="p">}</span>
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-require-drop-supplementary-groups"><a href="#conf-require-drop-supplementary-groups"><code>require-drop-supplementary-groups</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Following the principle of least privilege,
|
|||
|
|
Lix will attempt to drop supplementary groups when building with sandboxing.</p>
|
|||
|
|
<p>However this can fail under some circumstances.
|
|||
|
|
For example, if the user lacks the <code>CAP_SETGID</code> capability.
|
|||
|
|
Search <code>setgroups(2)</code> for <code>EPERM</code> to find more detailed information on this.</p>
|
|||
|
|
<p>If you encounter such a failure, setting this option to <code>false</code> will let you ignore it and continue.
|
|||
|
|
But before doing so, you should consider the security implications carefully.
|
|||
|
|
Not dropping supplementary groups means the build sandbox will be less restricted than intended.</p>
|
|||
|
|
<p>This option defaults to <code>true</code> when the user is root
|
|||
|
|
(since <code>root</code> usually has permissions to call setgroups)
|
|||
|
|
and <code>false</code> otherwise.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-require-sigs"><a href="#conf-require-sigs"><code>require-sigs</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to <code>true</code> (the default), any non-content-addressed path added
|
|||
|
|
or copied to the Nix store (e.g. when substituting from a binary
|
|||
|
|
cache) must have a signature by a trusted key. A trusted key is one
|
|||
|
|
listed in <code>trusted-public-keys</code>, or a public key counterpart to a
|
|||
|
|
private key stored in a file listed in <code>secret-key-files</code>.</p>
|
|||
|
|
<p>Set to <code>false</code> to disable signature checking and trust all
|
|||
|
|
non-content-addressed paths unconditionally.</p>
|
|||
|
|
<p>(Content-addressed paths are inherently trustworthy and thus
|
|||
|
|
unaffected by this configuration option.)</p>
|
|||
|
|
<p><strong>Default:</strong> <code>true</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-restrict-eval"><a href="#conf-restrict-eval"><code>restrict-eval</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to <code>true</code>, the Nix evaluator will not allow access to any
|
|||
|
|
files outside of the Nix search path (as set via the <code>NIX_PATH</code>
|
|||
|
|
environment variable or the <code>-I</code> option), or to URIs outside of
|
|||
|
|
<a href="./#conf-allowed-uris"><code>allowed-uris</code></a>.
|
|||
|
|
The default is <code>false</code>.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-run-diff-hook"><a href="#conf-run-diff-hook"><code>run-diff-hook</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If true, enable the execution of the <code>diff-hook</code> program.</p>
|
|||
|
|
<p>When using the Nix daemon, <code>run-diff-hook</code> must be set in the
|
|||
|
|
<code>nix.conf</code> configuration file, and cannot be passed at the command
|
|||
|
|
line.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-sandbox"><a href="#conf-sandbox"><code>sandbox</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to <code>true</code>, builds will be performed in a <em>sandboxed
|
|||
|
|
environment</em>, i.e., they’re isolated from the normal file system
|
|||
|
|
hierarchy and will only see their dependencies in the Nix store,
|
|||
|
|
the temporary build directory, private versions of <code>/proc</code>,
|
|||
|
|
<code>/dev</code>, <code>/dev/shm</code> and <code>/dev/pts</code> (on Linux), and the paths
|
|||
|
|
configured with the <code>sandbox-paths</code> option. This is useful to
|
|||
|
|
prevent undeclared dependencies on files in directories such as
|
|||
|
|
<code>/usr/bin</code>. In addition, on Linux, builds run in private PID,
|
|||
|
|
mount, network, IPC and UTS namespaces to isolate them from other
|
|||
|
|
processes in the system (except that fixed-output derivations do
|
|||
|
|
not run in private network namespace to ensure they can access the
|
|||
|
|
network).</p>
|
|||
|
|
<p>Currently, sandboxing only work on Linux and macOS. The use of a
|
|||
|
|
sandbox requires that Lix is run as root (so you should use the
|
|||
|
|
“build users” feature to perform the actual builds under different
|
|||
|
|
users than root).</p>
|
|||
|
|
<p>If this option is set to <code>relaxed</code>, then fixed-output derivations
|
|||
|
|
and derivations that have the <code>__noChroot</code> attribute set to <code>true</code>
|
|||
|
|
do not run in sandboxes.</p>
|
|||
|
|
<p>The default is <code>true</code> on Linux and <code>false</code> on all other platforms.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>true</code></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>build-use-chroot</code>, <code>build-use-sandbox</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-sandbox-build-dir"><a href="#conf-sandbox-build-dir"><code>sandbox-build-dir</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>The build directory inside the sandbox.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>/build</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-sandbox-dev-shm-size"><a href="#conf-sandbox-dev-shm-size"><code>sandbox-dev-shm-size</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>This option determines the maximum size of the <code>tmpfs</code> filesystem
|
|||
|
|
mounted on <code>/dev/shm</code> in Linux sandboxes. For the format, see the
|
|||
|
|
description of the <code>size</code> option of <code>tmpfs</code> in mount(8). The default
|
|||
|
|
is <code>50%</code>.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>50%</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-sandbox-fallback"><a href="#conf-sandbox-fallback"><code>sandbox-fallback</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether to disable sandboxing when the kernel doesn't allow it.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>true</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-sandbox-paths"><a href="#conf-sandbox-paths"><code>sandbox-paths</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>A list of paths bind-mounted into Nix sandbox environments. You can
|
|||
|
|
use the syntax <code>target=source</code> to mount a path in a different
|
|||
|
|
location in the sandbox; for instance, <code>/bin=/nix-bin</code> will mount
|
|||
|
|
the path <code>/nix-bin</code> as <code>/bin</code> inside the sandbox. If <em>source</em> is
|
|||
|
|
followed by <code>?</code>, then it is not an error if <em>source</em> does not exist;
|
|||
|
|
for example, <code>/dev/nvidiactl?</code> specifies that <code>/dev/nvidiactl</code> will
|
|||
|
|
only be mounted in the sandbox if it exists in the host filesystem.</p>
|
|||
|
|
<p>If the source is in the Nix store, then its closure will be added to
|
|||
|
|
the sandbox as well.</p>
|
|||
|
|
<p>Depending on how Lix was built, the default value for this option
|
|||
|
|
may be empty or provide <code>/bin/sh</code> as a bind-mount of <code>bash</code>.</p>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>build-chroot-dirs</code>, <code>build-sandbox-paths</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-secret-key-files"><a href="#conf-secret-key-files"><code>secret-key-files</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>A whitespace-separated list of files containing secret (private)
|
|||
|
|
keys. These are used to sign locally-built paths. They can be
|
|||
|
|
generated using <code>nix-store --generate-binary-cache-key</code>. The
|
|||
|
|
corresponding public key can be distributed to other users, who
|
|||
|
|
can add it to <code>trusted-public-keys</code> in their <code>nix.conf</code>.</p>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-show-trace"><a href="#conf-show-trace"><code>show-trace</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether Lix should print out a stack trace in case of Nix
|
|||
|
|
expression evaluation errors.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-ssl-cert-file"><a href="#conf-ssl-cert-file"><code>ssl-cert-file</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>The path of a file containing CA certificates used to
|
|||
|
|
authenticate <code>https://</code> downloads. Lix by default will use
|
|||
|
|
the first of the following files that exists:</p>
|
|||
|
|
<ol>
|
|||
|
|
<li><code>/etc/ssl/certs/ca-certificates.crt</code></li>
|
|||
|
|
<li><code>/nix/var/nix/profiles/default/etc/ssl/certs/ca-bundle.crt</code></li>
|
|||
|
|
</ol>
|
|||
|
|
<p>The path can be overridden by the following environment
|
|||
|
|
variables, in order of precedence:</p>
|
|||
|
|
<ol>
|
|||
|
|
<li><code>NIX_SSL_CERT_FILE</code></li>
|
|||
|
|
<li><code>SSL_CERT_FILE</code></li>
|
|||
|
|
</ol>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-stalled-download-timeout"><a href="#conf-stalled-download-timeout"><code>stalled-download-timeout</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>The timeout (in seconds) for receiving data from servers
|
|||
|
|
during download. Lix cancels idle downloads after this
|
|||
|
|
timeout's duration.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>300</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-start-id"><a href="#conf-start-id"><code>start-id</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>The first UID and GID to use for dynamic ID allocation.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>872415232</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-store"><a href="#conf-store"><code>store</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>The <a href="../New-CLI/nix3-help-stores/#store-url-format">URL of the Nix store</a>
|
|||
|
|
to use for most operations.
|
|||
|
|
See <a href="../New-CLI/nix3-help-stores/"><code>nix help-stores</code></a>
|
|||
|
|
for supported store types and settings.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>auto</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-substitute"><a href="#conf-substitute"><code>substitute</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to <code>true</code> (default), Lix will use binary substitutes if
|
|||
|
|
available. This option can be disabled to force building from
|
|||
|
|
source.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>true</code></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>build-use-substitutes</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-substituters"><a href="#conf-substituters"><code>substituters</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>A list of <a href="../New-CLI/nix3-help-stores/#store-url-format">URLs of Nix stores</a> to be used as substituters, separated by whitespace.
|
|||
|
|
A substituter is an additional <a href="../../glossary/#gloss-store">store</a> from which Lix can obtain <a href="../../glossary/#gloss-store-object">store objects</a> instead of building them.</p>
|
|||
|
|
<p>Substituters are tried based on their priority value, which each substituter can set independently.
|
|||
|
|
Lower value means higher priority.
|
|||
|
|
The default is <code>https://cache.nixos.org</code>, which has a priority of 40.</p>
|
|||
|
|
<p>At least one of the following conditions must be met for Lix to use a substituter:</p>
|
|||
|
|
<ul>
|
|||
|
|
<li>The substituter is in the <a href="#conf-trusted-substituters"><code>trusted-substituters</code></a> list</li>
|
|||
|
|
<li>The user calling Lix is in the <a href="#conf-trusted-users"><code>trusted-users</code></a> list</li>
|
|||
|
|
</ul>
|
|||
|
|
<p>In addition, each store path should be trusted as described in <a href="#conf-trusted-public-keys"><code>trusted-public-keys</code></a></p>
|
|||
|
|
<p><strong>Default:</strong> <code>https://cache.nixos.org/</code></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>binary-caches</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-sync-before-registering"><a href="#conf-sync-before-registering"><code>sync-before-registering</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether to call <code>sync()</code> before registering a path as valid.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-system"><a href="#conf-system"><code>system</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>The system type of the current Lix installation.
|
|||
|
|
Lix will only build a given <a href="../../language/derivations/">derivation</a> locally when its <code>system</code> attribute equals any of the values specified here or in <a href="#conf-extra-platforms"><code>extra-platforms</code></a>.</p>
|
|||
|
|
<p>The default value is set when Lix itself is compiled for the system it will run on.
|
|||
|
|
The following system types are widely used, as <a href="../../contributing/hacking/#platforms">Lix is actively supported on these platforms</a>:</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><code>x86_64-linux</code></li>
|
|||
|
|
<li><code>x86_64-darwin</code></li>
|
|||
|
|
<li><code>i686-linux</code></li>
|
|||
|
|
<li><code>aarch64-linux</code></li>
|
|||
|
|
<li><code>aarch64-darwin</code></li>
|
|||
|
|
<li><code>armv6l-linux</code></li>
|
|||
|
|
<li><code>armv7l-linux</code></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>In general, you do not have to modify this setting.
|
|||
|
|
While you can force Lix to run a Darwin-specific <code>builder</code> executable on a Linux machine, the result would obviously be wrong.</p>
|
|||
|
|
<p>This value is available in the Nix language as
|
|||
|
|
<a href="../../language/builtin-constants/#builtins-currentSystem"><code>builtins.currentSystem</code></a>
|
|||
|
|
if the
|
|||
|
|
<a href="#conf-eval-system"><code>eval-system</code></a>
|
|||
|
|
configuration option is set as the empty string.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>x86_64-linux</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-system-features"><a href="#conf-system-features"><code>system-features</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>A set of system “features” supported by this machine, e.g. <code>kvm</code>.
|
|||
|
|
Derivations can express a dependency on such features through the
|
|||
|
|
derivation attribute <code>requiredSystemFeatures</code>. For example, the
|
|||
|
|
attribute</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code> requiredSystemFeatures = [ "kvm" ];
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p>ensures that the derivation can only be built on a machine with the
|
|||
|
|
<code>kvm</code> feature.</p>
|
|||
|
|
<p>This setting by default includes <code>kvm</code> if <code>/dev/kvm</code> is accessible,
|
|||
|
|
<code>apple-virt</code> if hardware virtualization is available on macOS,
|
|||
|
|
and the pseudo-features <code>nixos-test</code>, <code>benchmark</code> and <code>big-parallel</code>
|
|||
|
|
that are used in Nixpkgs to route builds to specific machines.</p>
|
|||
|
|
<p><strong>Default:</strong> <em>machine-specific</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-tarball-ttl"><a href="#conf-tarball-ttl"><code>tarball-ttl</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>The number of seconds a downloaded tarball is considered fresh. If
|
|||
|
|
the cached tarball is stale, Lix will check whether it is still up
|
|||
|
|
to date using the ETag header. Lix will download a new version if
|
|||
|
|
the ETag header is unsupported, or the cached ETag doesn't match.</p>
|
|||
|
|
<p>Setting the TTL to <code>0</code> forces Lix to always check if the tarball is
|
|||
|
|
up to date.</p>
|
|||
|
|
<p>Lix caches tarballs in <code>$XDG_CACHE_HOME/nix/tarballs</code>.</p>
|
|||
|
|
<p>Files fetched via <code>NIX_PATH</code>, <code>fetchGit</code>, <code>fetchMercurial</code>,
|
|||
|
|
<code>fetchTarball</code>, and <code>fetchurl</code> respect this TTL.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>3600</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-timeout"><a href="#conf-timeout"><code>timeout</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>This option defines the maximum number of seconds that a builder can
|
|||
|
|
run. This is useful (for instance in an automated build system) to
|
|||
|
|
catch builds that are stuck in an infinite loop but keep writing to
|
|||
|
|
their standard output or standard error. It can be overridden using
|
|||
|
|
the <code>--timeout</code> command line switch.</p>
|
|||
|
|
<p>The value <code>0</code> means that there is no timeout. This is also the
|
|||
|
|
default.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>0</code></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>build-timeout</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-trace-function-calls"><a href="#conf-trace-function-calls"><code>trace-function-calls</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to <code>true</code>, the Nix evaluator will trace every function call.
|
|||
|
|
Nix will print a log message at the "vomit" level for every function
|
|||
|
|
entrance and function exit.</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code> function-trace entered undefined position at 1565795816999559622
|
|||
|
|
function-trace exited undefined position at 1565795816999581277
|
|||
|
|
function-trace entered /nix/store/.../example.nix:226:41 at 1565795253249935150
|
|||
|
|
function-trace exited /nix/store/.../example.nix:226:41 at 1565795253249941684
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p>The <code>undefined position</code> means the function call is a builtin.</p>
|
|||
|
|
<p>Use the <code>contrib/stack-collapse.py</code> script distributed with the Nix
|
|||
|
|
source code to convert the trace logs in to a format suitable for
|
|||
|
|
<code>flamegraph.pl</code>.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-trace-verbose"><a href="#conf-trace-verbose"><code>trace-verbose</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether <code>builtins.traceVerbose</code> should trace its first argument when evaluated.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-trusted-public-keys"><a href="#conf-trusted-public-keys"><code>trusted-public-keys</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>A whitespace-separated list of public keys.</p>
|
|||
|
|
<p>At least one of the following condition must be met
|
|||
|
|
for Lix to accept copying a store object from another
|
|||
|
|
Nix store (such as a substituter):</p>
|
|||
|
|
<ul>
|
|||
|
|
<li>the store object has been signed using a key in the trusted keys list</li>
|
|||
|
|
<li>the <a href="#conf-require-sigs"><code>require-sigs</code></a> option has been set to <code>false</code></li>
|
|||
|
|
<li>the store object is <a href="../../glossary/#gloss-output-addressed-store-object">output-addressed</a></li>
|
|||
|
|
</ul>
|
|||
|
|
<p><strong>Default:</strong> <code>cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=</code></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>binary-cache-public-keys</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-trusted-substituters"><a href="#conf-trusted-substituters"><code>trusted-substituters</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>A list of <a href="../New-CLI/nix3-help-stores/#store-url-format">Nix store URLs</a>, separated by whitespace.
|
|||
|
|
These are not used by default, but users of the Nix daemon can enable them by specifying <a href="#conf-substituters"><code>substituters</code></a>.</p>
|
|||
|
|
<p>Unprivileged users (those set in only <a href="#conf-allowed-users"><code>allowed-users</code></a> but not <a href="#conf-trusted-users"><code>trusted-users</code></a>) can pass as <code>substituters</code> only those URLs listed in <code>trusted-substituters</code>.</p>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<p><strong>Deprecated alias:</strong> <code>trusted-binary-caches</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-trusted-users"><a href="#conf-trusted-users"><code>trusted-users</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>A list of user names, separated by whitespace.
|
|||
|
|
These users will have additional rights when connecting to the Nix daemon, such as the ability to specify additional <a href="#conf-substituters">substituters</a>, or to import unsigned <a href="../../glossary/#gloss-nar">NARs</a>.</p>
|
|||
|
|
<p>You can also specify groups by prefixing names with <code>@</code>.
|
|||
|
|
For instance, <code>@wheel</code> means all users in the <code>wheel</code> group.</p>
|
|||
|
|
<div class="admonition warning">
|
|||
|
|
<p class="admonition-title">Warning</p>
|
|||
|
|
<p>Adding a user to <code>trusted-users</code> is essentially equivalent to giving that user root access to the system.
|
|||
|
|
For example, the user can access or replace store path contents that are critical for system security.</p>
|
|||
|
|
</div>
|
|||
|
|
<p><strong>Default:</strong> <code>root</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-use-case-hack"><a href="#conf-use-case-hack"><code>use-case-hack</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether to enable a Darwin-specific hack for dealing with file name collisions.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-use-cgroups"><a href="#conf-use-cgroups"><code>use-cgroups</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether to execute builds inside cgroups.
|
|||
|
|
This is only supported on Linux.</p>
|
|||
|
|
<p>Cgroups are required and enabled automatically for derivations
|
|||
|
|
that require the <code>uid-range</code> system feature.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-use-registries"><a href="#conf-use-registries"><code>use-registries</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether to use flake registries to resolve flake references.</p>
|
|||
|
|
<div class="admonition warning">
|
|||
|
|
<p class="admonition-title">Warning</p>
|
|||
|
|
<p>This setting is part of an
|
|||
|
|
<a href="../../contributing/experimental-features/">experimental feature</a>.</p>
|
|||
|
|
</div>
|
|||
|
|
<p>To change this setting, you need to make sure the corresponding experimental feature,
|
|||
|
|
<a href="../../contributing/experimental-features/#xp-feature-flakes"><code>flakes</code></a>,
|
|||
|
|
is enabled.
|
|||
|
|
For example, include the following in <a href="#"><code>nix.conf</code></a>:</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code>extra-experimental-features = flakes
|
|||
|
|
use-registries = ...
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p><strong>Default:</strong> <code>true</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-use-sqlite-wal"><a href="#conf-use-sqlite-wal"><code>use-sqlite-wal</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether SQLite should use WAL mode.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>true</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-use-xdg-base-directories"><a href="#conf-use-xdg-base-directories"><code>use-xdg-base-directories</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>If set to <code>true</code>, Lix will conform to the <a href="https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html">XDG Base Directory Specification</a> for files in <code>$HOME</code>.
|
|||
|
|
The environment variables used to implement this are documented in the <a href="../env-common/">Environment Variables section</a>.</p>
|
|||
|
|
<div class="admonition warning">
|
|||
|
|
<p class="admonition-title">Warning</p>
|
|||
|
|
<p>This changes the location of some well-known symlinks that Lix creates, which might break tools that rely on the old, non-XDG-conformant locations.</p>
|
|||
|
|
</div>
|
|||
|
|
<p>In particular, the following locations change:</p>
|
|||
|
|
<table>
|
|||
|
|
<thead>
|
|||
|
|
<tr>
|
|||
|
|
<th>Old</th>
|
|||
|
|
<th>New</th>
|
|||
|
|
</tr>
|
|||
|
|
</thead>
|
|||
|
|
<tbody>
|
|||
|
|
<tr>
|
|||
|
|
<td><code>~/.nix-profile</code></td>
|
|||
|
|
<td><code>$XDG_STATE_HOME/nix/profile</code></td>
|
|||
|
|
</tr>
|
|||
|
|
<tr>
|
|||
|
|
<td><code>~/.nix-defexpr</code></td>
|
|||
|
|
<td><code>$XDG_STATE_HOME/nix/defexpr</code></td>
|
|||
|
|
</tr>
|
|||
|
|
<tr>
|
|||
|
|
<td><code>~/.nix-channels</code></td>
|
|||
|
|
<td><code>$XDG_STATE_HOME/nix/channels</code></td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody>
|
|||
|
|
</table>
|
|||
|
|
<p>If you already have Lix installed and are using <a href="../../Package-Management/profiles/">profiles</a> or <a href="../nix-channel/">channels</a>, you should migrate manually when you enable this option.
|
|||
|
|
If <code>$XDG_STATE_HOME</code> is not set, use <code>$HOME/.local/state/nix</code> instead of <code>$XDG_STATE_HOME/nix</code>.
|
|||
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This can be achieved with the following shell commands:</p>
|
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<div class="highlight"><pre><span></span><code><span class="nv">nix_state_home</span><span class="o">=</span><span class="si">${</span><span class="nv">XDG_STATE_HOME</span><span class="p">-</span><span class="nv">$HOME</span><span class="p">/.local/state</span><span class="si">}</span>/nix
|
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|
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mkdir<span class="w"> </span>-p<span class="w"> </span><span class="nv">$nix_state_home</span>
|
|||
|
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mv<span class="w"> </span><span class="nv">$HOME</span>/.nix-profile<span class="w"> </span><span class="nv">$nix_state_home</span>/profile
|
|||
|
|
mv<span class="w"> </span><span class="nv">$HOME</span>/.nix-defexpr<span class="w"> </span><span class="nv">$nix_state_home</span>/defexpr
|
|||
|
|
mv<span class="w"> </span><span class="nv">$HOME</span>/.nix-channels<span class="w"> </span><span class="nv">$nix_state_home</span>/channels
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p><strong>Default:</strong> <code>false</code></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-user-agent-suffix"><a href="#conf-user-agent-suffix"><code>user-agent-suffix</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>String appended to the user agent in HTTP requests.</p>
|
|||
|
|
<p><strong>Default:</strong> <em>empty</em></p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="conf-warn-dirty"><a href="#conf-warn-dirty"><code>warn-dirty</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whether to warn about dirty Git/Mercurial trees.</p>
|
|||
|
|
<p><strong>Default:</strong> <code>true</code></p>
|
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