2006-09-28 12:10:53 +03:00
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<refentry xmlns="http://docbook.org/ns/docbook"
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xmlns:xlink="http://www.w3.org/1999/xlink">
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<refnamediv>
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<refname>nix-pack-closure</refname>
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<refpurpose>pack the closure of a store path into a single file that
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can be unpacked with
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<command>nix-unpack-closure</command></refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>nix-pack-closure</command>
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<arg choice='plain' rep='repeat'><replaceable>paths</replaceable></arg>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsection><title>Description</title>
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<para>The command <command>nix-pack-closure</command> packs the
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contents of the store paths <replaceable>paths</replaceable> and
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<emphasis>all their dependencies</emphasis> into a single file, which
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is written to standard output. (That is, it
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<emphasis>serialises</emphasis> <replaceable>paths</replaceable>.)
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The output can then be unpacked into the Nix store of another machine
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using <command>nix-unpack-closure</command>.</para>
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<para>Together, <command>nix-pack-closure</command> and
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<command>nix-unpack-closure</command> provide a quick and easy way to
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deploy a package to a different machine. However, as the output of
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<command>nix-pack-closure</command> tends to be rather large (since it
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contains all dependencies), it’s not very efficient.
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<command>nix-push</command> and <command>nix-pull</command> are more
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efficient, but are also a bit more cumbersome to use.</para>
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</refsection>
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<refsection><title>Examples</title>
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<para>To copy some instance of Subversion with all its dependencies to
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another machine:
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<screen>
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$ nix-pack-closure /nix/store/hj232g1r...-subversion-1.3.0 > svn.closure
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2006-09-29 13:31:56 +03:00
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<lineannotation>Copy <!-- !!! <filename> -->svn.closure to the remote machine, then on the remote machine do:</lineannotation>
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2006-09-28 12:10:53 +03:00
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$ nix-unpack-closure < svn.closure</screen>
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</para>
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<para>Copy the program <command>azureus</command> with all its
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dependencies to the machine <literal>scratchy</literal>:
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<screen>
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$ nix-pack-closure $(which azureus) | ssh scratchy nix-unpack-closure</screen>
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</para>
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</refsection>
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</refentry>
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