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formats.ini: Introduce listToValue argument (#121613)

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Allows coercing lists to values. E.g.

  formats.ini { listToValue = lib.concatMapStringsSep ", " (lib.generators.mkValueStringDefault {}); }
This commit is contained in:
Silvan Mosberger
2021-05-04 09:49:25 +02:00
committed by GitHub
parent 3cc34f9e55
commit b8336c2b8a
3 changed files with 51 additions and 3 deletions
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nixos/doc/manual/development/settings-options.xml
+11 -1
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@@ -50,7 +50,7 @@
</varlistentry>
<varlistentry>
<term>
<varname>pkgs.formats.ini</varname> { <replaceable>listsAsDuplicateKeys</replaceable> ? false, ... }
<varname>pkgs.formats.ini</varname> { <replaceable>listsAsDuplicateKeys</replaceable> ? false, <replaceable>listToValue</replaceable> ? null, ... }
</term>
<listitem>
<para>
@@ -66,6 +66,16 @@
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<varname>listToValue</varname>
</term>
<listitem>
<para>
A function for turning a list of values into a single value.
</para>
</listitem>
</varlistentry>
</variablelist>
It returns a set with INI-specific attributes <varname>type</varname> and <varname>generate</varname> as specified <link linkend='pkgs-formats-result'>below</link>.
</para>