a5ceb5bc0b
So when using Nix as a build tool, you can just say `nix-build' and it will build the top-level derivation defined in `default.nix'.
78 lines
2.6 KiB
XML
78 lines
2.6 KiB
XML
<refentry>
|
||
|
||
<refnamediv>
|
||
<refname>nix-build</refname>
|
||
<refpurpose>build a Nix expression</refpurpose>
|
||
</refnamediv>
|
||
|
||
<refsynopsisdiv>
|
||
<cmdsynopsis>
|
||
<command>nix-build</command>
|
||
<arg><option>--add-drv-link</option></arg>
|
||
<arg><option>--no-link</option></arg>
|
||
<arg choice='plain' rep='repeat'><replaceable>paths</replaceable></arg>
|
||
</cmdsynopsis>
|
||
</refsynopsisdiv>
|
||
|
||
<refsection><title>Description</title>
|
||
|
||
<para>The <command>nix-build</command> command builds the derivations
|
||
described by the Nix expressions in <replaceable>paths</replaceable>.
|
||
If the build succeeds, it places a symlink to the result in the
|
||
current directory. The symlink is called <filename>result</filename>.
|
||
If there are multiple Nix expressions, or the Nix expressions evaluate
|
||
to multiple derivations, multiple sequentially numbered symlinks are
|
||
created (<filename>result</filename>, <filename>result-2</filename>,
|
||
and so on).</para>
|
||
|
||
<para>If no <replaceable>paths</replaceable> are specified, then
|
||
<command>nix-build</command> will use <filename>default.nix</filename>
|
||
in the current directory, if it exists.</para>
|
||
|
||
<note><para><command>nix-build</command> is essentially a wrapper
|
||
around <link
|
||
linkend="sec-nix-instantiate"><command>nix-instantiate</command></link>
|
||
(to translate a high-level Nix expression to a low-level store
|
||
derivation) and <link
|
||
linkend="rsec-nix-store-realise"><command>nix-store
|
||
--realise</command></link> (to build the store
|
||
derivation).</para></note>
|
||
|
||
<warning><para>The result of the build is automatically registered as
|
||
a root of the Nix garbage collector. This root disappears
|
||
automatically when the <filename>result</filename> symlink is deleted
|
||
or renamed. So don’t rename the symlink.</para></warning>
|
||
|
||
</refsection>
|
||
|
||
|
||
<refsection><title>Options</title>
|
||
|
||
<variablelist>
|
||
|
||
<varlistentry><term><option>--add-drv-link</option></term>
|
||
|
||
<listitem><para>Add a symlink in the current directory to the
|
||
store derivation produced by <command>nix-instantiate</command>.
|
||
The symlink is called <filename>derivation</filename> (which is
|
||
numbered in the case of multiple derivations). The derivation is
|
||
a root of the garbage collector until the symlink is deleted or
|
||
renamed.</para></listitem>
|
||
|
||
</varlistentry>
|
||
|
||
<varlistentry><term><option>--no-link</option></term>
|
||
|
||
<listitem><para>Do not create a symlink to the output path. Note
|
||
that as a result the output does not become a root of the garbage
|
||
collector, and so might be deleted by <command>nix-store
|
||
--gc</command>.</para></listitem>
|
||
|
||
</varlistentry>
|
||
|
||
</variablelist>
|
||
|
||
</refsection>
|
||
|
||
|
||
</refentry>
|