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dconf: Warn about strict typing of options

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This is a frequent surprise to users.
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Jan Tojnar 2023-05-06 17:26:35 +02:00 committed by Robert Helgesson
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commit 0b4ec66640
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modules/misc/dconf.nix
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@ -59,6 +59,17 @@ in {
'';
description = ''
Settings to write to the dconf configuration system.
</para><para>
Note that the database is strongly-typed so you need to use the same types
as described in the GSettings schema. For example, if an option is of type
<literal>uint32</literal> (<literal>u</literal>), you need to wrap the number
using the <literal>lib.hm.gvariant.mkUint32</literal> constructor.
Otherwise, since Nix integers are implicitly coerced to <literal>int32</literal>
(<literal>i</literal>), it would get stored in the database as such, and GSettings
might be confused when loading the setting.
</para><para>
You might want to use <link xlink:href="https://github.com/gvolpe/dconf2nix">dconf2nix</link>
to convert dconf database dumps into compatible Nix expression.
'';
};
};