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lib/types: Allow paths as submodule values

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Silvan Mosberger 2019-12-31 04:25:35 +01:00
parent bc42515736
commit eec83d41e3
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2 changed files with 8 additions and 6 deletions
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4
lib/types.nix
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@ -376,14 +376,16 @@ rec {
else unify (if shorthandOnlyDefinesConfig then { config = value; } else value);
allModules = defs: modules ++ imap1 (n: { value, file }:
if isAttrs value || isFunction value then
# Annotate the value with the location of its definition for better error messages
coerce (lib.modules.unifyModuleSyntax file "${toString file}-${toString n}") value
else value
) defs;
in
mkOptionType rec {
name = "submodule";
check = x: isAttrs x || isFunction x;
check = x: isAttrs x || isFunction x || path.check x;
merge = loc: defs:
(evalModules {
modules = allModules defs;

6
nixos/doc/manual/development/option-types.xml
View file

@ -257,9 +257,9 @@
<listitem>
<para>
A set of sub options <replaceable>o</replaceable>.
<replaceable>o</replaceable> can be an attribute set or a function
returning an attribute set. Submodules are used in composed types to
create modular options. This is equivalent to
<replaceable>o</replaceable> can be an attribute set, a function
returning an attribute set, or a path to a file containing such a value. Submodules are used in
composed types to create modular options. This is equivalent to
<literal>types.submoduleWith { modules = toList o; shorthandOnlyDefinesConfig = true; }</literal>.
Submodules are detailed in
<xref