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| -rw-r--r-- | doc/manual/expressions/advanced-attributes.xml | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/doc/manual/expressions/advanced-attributes.xml b/doc/manual/expressions/advanced-attributes.xml index db981b60713b..a9b97b91a0a2 100644 --- a/doc/manual/expressions/advanced-attributes.xml +++ b/doc/manual/expressions/advanced-attributes.xml @@ -322,6 +322,20 @@ big = "a very long string"; </varlistentry> + + <varlistentry><term><varname>allowSubstitutes</varname></term> + + <listitem><para>If this attribute is set to + <literal>false</literal>, then Nix will always build this + derivation; it will not try to substitute its outputs. This is + useful for very trivial derivations (such as + <function>writeText</function> in Nixpkgs) that are cheaper to + build locally than to substitute from a binary + cache.</para></listitem> + + </varlistentry> + + </variablelist> </section> |