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Introduce allowedRequisites feature

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Gergely Risko 2014-08-27 16:46:02 +02:00 • committed by Eelco Dolstra
parent 3f0a4bf0e7
commit fd61069a42
6 changed files with 108 additions and 2 deletions
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14
doc/manual/release-notes.xml
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@ -11,6 +11,20 @@
<para>TODO</para>
<itemizedlist>
<listitem><para>Derivations can specify the new special attribute
<varname>allowedRequisites</varname>, which has a similar meaning to
<varname>allowedReferences</varname>. But instead of only enforcing
to explicitly specify the immediate references, it requires the
derivation to specify all the dependencies recursively (hence the
name, requisites) that are used by the resulting output. This is
used in NixOS when rebuilding the stdenv on Linux to ensure that the
resulting stdenv doesn't have any surprising dependency, e.g. on
bootstrapTools.</para></listitem>
</itemizedlist>
</section>

19
doc/manual/writing-nix-expressions.xml
View file

@ -1569,6 +1569,25 @@ allowedReferences = [];
</varlistentry>
<varlistentry><term><varname>allowedRequisites</varname></term>
<listitem><para>This attribute is similar to
<varname>allowedReferences</varname>, but it specifies the legal
requisites of the whole closure, so all the dependencies
recursively. For example,
<programlisting>
allowedReferences = [ foobar ];
</programlisting>
enforces that the output of a derivation cannot have any other
runtime dependency than <varname>foobar</varname>, and in addition
it enforces that <varname>foobar</varname> itself doesn't
introduce any other dependency itself. This is used in NixOS when
rebuilding the stdenv on Linux to ensure that the resulting stdenv
doesn't have any surprising dependency, e.g. on bootstrapTools.
</varlistentry>
<varlistentry><term><varname>exportReferencesGraph</varname></term>