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Undocument NIX_OTHER_STORES

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This commit is contained in:
Eelco Dolstra 2014-09-16 14:49:00 +02:00
parent 57f6463ec0
commit b1af336132
3 changed files with 2 additions and 49 deletions
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22
doc/manual/command-ref/env-common.xml
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@ -283,28 +283,6 @@ $ mount -o bind /mnt/otherdisk/nix /nix</screen>
</varlistentry>
<varlistentry xml:id="envar-other-stores"><term><envar>NIX_OTHER_STORES</envar></term>
<listitem><para>This variable contains the paths of remote Nix
installations from which packages can be copied, separated by colons.
<phrase condition="manual">See <xref linkend="sec-sharing-packages"
/> for details.</phrase> Each path should be the
<filename>/nix</filename> directory of a remote Nix installation
(i.e., not the <filename>/nix/store</filename> directory). The
paths are subject to globbing, so you can set it so something like
<literal>/var/run/nix/remote-stores/*/nix</literal> and mount
multiple remote filesystems in
<literal>/var/run/nix/remote-stores</literal>.</para>
<para>Note that if you’re building through the <link
linkend="sec-nix-daemon">Nix daemon</link>, the only setting for
this variable that matters is the one that the
<command>nix-daemon</command> process uses. So if you want to
change it, you have to restart the daemon.</para></listitem>
</varlistentry>
<varlistentry><term><envar>NIX_SHOW_STATS</envar></term>
<listitem><para>If set to <literal>1</literal>, Nix will print some

2
doc/manual/manual.xml
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@ -25,7 +25,7 @@
<holder>Eelco Dolstra</holder>
</copyright>
<date>April 2014</date>
<date>September 2014</date>
</info>

25
doc/manual/packages/sharing-packages.xml
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@ -53,30 +53,5 @@ But note that <command>nix-copy-closure</command> is generally more
efficient in this example because it only copies paths that are not
already present in the target Nix store.</para>
<para>Finally, if you can mount the Nix store of a remote machine in
your local filesystem, Nix can copy paths from the remote Nix store to
the local Nix store <emphasis>on demand</emphasis>. For instance,
suppose that you mount a remote machine containing a Nix store via
<command
xlink:href="http://fuse.sourceforge.net/sshfs.html">sshfs</command>:
<screen>
$ sshfs alice@itchy.example.org:/ /mnt</screen>
You should then set the <envar>NIX_OTHER_STORES</envar> environment
variable to tell Nix about this remote Nix store:
<screen>
$ export NIX_OTHER_STORES=/mnt/nix</screen>
Then if you do any Nix operation, e.g.
<screen>
$ nix-env -i firefox</screen>
and Nix has to build a path that it sees is already present in
<filename>/mnt/nix</filename>, then it will just copy from there
instead of building it from source.</para>
</chapter>