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<refentry xmlns="http://docbook.org/ns/docbook"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:xi="http://www.w3.org/2001/XInclude"
version="5.0"
xml:id="sec-nix-install-package">
<refmeta>
<refentrytitle>nix-install-package</refentrytitle>
<manvolnum>1</manvolnum>
<refmiscinfo class="source">Nix</refmiscinfo>
<refmiscinfo class="version"><xi:include href="../version.txt" parse="text"/></refmiscinfo>
</refmeta>
<refnamediv>
<refname>nix-install-package</refname>
<refpurpose>install a Nix Package file</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>nix-install-package</command>
<arg><option>--non-interactive</option></arg>
<arg>
<group choice='req'>
<arg choice='plain'><option>--profile</option></arg>
<arg choice='plain'><option>-p</option></arg>
</group>
<replaceable>path</replaceable>
</arg>
<arg><option>--set</option></arg>
<sbr />
<group choice='req'>
<arg choice='req'>
<option>--url</option>
<arg choice='plain'><replaceable>url</replaceable></arg>
</arg>
<arg choice='req'>
<arg choice='plain'><replaceable>file</replaceable></arg>
</arg>
</group>
</cmdsynopsis>
</refsynopsisdiv>
<refsection><title>Description</title>
<para>The command <command>nix-install-package</command> interactively
installs a Nix Package file (<filename>*.nixpkg</filename>), which is
a small file that contains a store path to be installed along with the
URL of a binary cache. The Nix Package file is either
<replaceable>file</replaceable>, or automatically downloaded from
<replaceable>url</replaceable> if the <option>--url</option> switch is
used.</para>
<para><command>nix-install-package</command> is used in <link
linkend="sec-one-click">one-click installs</link> to download and
install pre-built binary packages with all necessary dependencies.
<command>nix-install-package</command> is intended to be associated
with the MIME type <literal>application/nix-package</literal> in a web
browser so that it is invoked automatically when you click on
<filename>*.nixpkg</filename> files. When invoked, it restarts itself
in a terminal window (since otherwise it would be invisible when run
from a browser), asks the user to confirm whether to install the
package, and if so downloads and installs the package into the user’s
current profile.</para>
<para>To obtain a window, <command>nix-install-package</command> tries
to restart itself with <command>xterm</command>,
<command>konsole</command> and
<command>gnome-terminal</command>.</para>
</refsection>
<refsection><title>Options</title>
<variablelist>
<varlistentry><term><option>--non-interactive</option></term>
<listitem><para>Do not open a new terminal window and do not ask
for confirmation.</para></listitem>
</varlistentry>
<varlistentry><term><option>--profile</option></term>
<term><option>-p</option></term>
<listitem><para>Install the package into the specified profile
rather than the user’s current profile.</para></listitem>
</varlistentry>
<varlistentry><term><option>--set</option></term>
<listitem><para>Install the package as the profile so that the
profile contains exactly the contents of the package.</para></listitem>
</varlistentry>
</variablelist>
</refsection>
<refsection><title>Examples</title>
<para>To install <filename>subversion-1.4.0.nixpkg</filename> into the
user’s current profile, without any prompting:
<screen>
$ nix-install-package --non-interactive subversion-1.4.0.nixpkg</screen>
</para>
<para>To install the same package from some URL into a different
profile:
<screen>
$ nix-install-package --non-interactive -p /nix/var/nix/profiles/eelco \
--url http://nix.cs.uu.nl/dist/nix/nixpkgs-0.10pre6622/pkgs/subversion-1.4.0-i686-linux.nixpkg</screen>
</para>
</refsection>
<refsection><title>Format of <literal>nixpkg</literal> files</title>
<para>A Nix Package file consists of a single line with the following
format:
<screen>
NIXPKG1 <replaceable>manifestURL</replaceable> <replaceable>name</replaceable> <replaceable>system</replaceable> <replaceable>drvPath</replaceable> <replaceable>outPath</replaceable></screen>
The elements are as follows:
<variablelist>
<varlistentry><term><literal>NIXPKG1</literal></term>
<listitem><para>The version of the Nix Package
file.</para></listitem>
</varlistentry>
<varlistentry><term><replaceable>manifestURL</replaceable></term>
<listitem><para>Obsolete.</para></listitem>
</varlistentry>
<varlistentry><term><replaceable>name</replaceable></term>
<listitem><para>The symbolic name and version of the
package.</para></listitem>
</varlistentry>
<varlistentry><term><replaceable>system</replaceable></term>
<listitem><para>The platform identifier of the platform for which
this binary package is intended.</para></listitem>
</varlistentry>
<varlistentry><term><replaceable>drvPath</replaceable></term>
<listitem><para>The path in the Nix store of the derivation from
which <replaceable>outPath</replaceable> was built. Not currently
used.</para></listitem>
</varlistentry>
<varlistentry><term><replaceable>outPath</replaceable></term>
<listitem><para>The path in the Nix store of the
package.</para></listitem>
</varlistentry>
<varlistentry><term><replaceable>binaryCacheURL</replaceable></term>
<listitem><para>The URL of a binary cache containing the closure
of <replaceable>outPath</replaceable>.</para></listitem>
</varlistentry>
</variablelist>
</para>
<para>An example follows:
<screen>
NIXPKG1 http://.../nixpkgs-0.10pre6622/MANIFEST subversion-1.4.0 i686-darwin \
/nix/store/4kh60jkp...-subversion-1.4.0.drv \
/nix/store/nkw7wpgb...-subversion-1.4.0</screen>
(The line breaks (<literal>\</literal>) are for presentation purposes
and not part of the actual file.)
</para>
</refsection>
</refentry>
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