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author | Maximilian Bosch <maximilian@mbosch.me> | 2021-07-23 10:56:24 +0200 |
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committer | Maximilian Bosch <maximilian@mbosch.me> | 2021-08-25 23:18:27 +0200 |
commit | b6d3c9f821b704fbfb68d20a76520fa9e160df36 (patch) | |
tree | 08aef81024286917fbc0f617b1796e800e4cf026 /lib/modules.nix | |
parent | fbc9084c39297f6a8ca618b0f6a3ccdd4489ab6a (diff) |
lib/modules: fix error-message when declaring an option inside `config'
The message I originally implemented here was to catch a mixup of `config' and `options' in a `types.submodule'[1]. However it looks rather weird for a wrongly declared top-level option. So I decided to throw error: The option `foo' does not exist. Definition values: - In `<unknown-file>': { bar = { _type = "option"; type = { _type = "option-type"; ... It seems as you're trying to declare an option by placing it into `config' rather than `options'! for an expression like with import ./lib; evalModules { modules = [ { foo.bar = mkOption { type = types.str; }; } ]; } [1] fa30c9abed61f30218a211842204705986d486f9
Diffstat (limited to 'lib/modules.nix')
-rw-r--r-- | lib/modules.nix | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/lib/modules.nix b/lib/modules.nix index b124ea000a2e7..51e12f0659c9e 100644 --- a/lib/modules.nix +++ b/lib/modules.nix @@ -162,13 +162,24 @@ rec { baseMsg = "The option `${showOption (prefix ++ firstDef.prefix)}' does not exist. Definition values:${showDefs [ firstDef ]}"; in if attrNames options == [ "_module" ] - then throw '' - ${baseMsg} - - However there are no options defined in `${showOption prefix}'. Are you sure you've - declared your options properly? This can happen if you e.g. declared your options in `types.submodule' - under `config' rather than `options'. - '' + then + let + optionName = showOption prefix; + in + if optionName == "" + then throw '' + ${baseMsg} + + It seems as you're trying to declare an option by placing it into `config' rather than `options'! + '' + else + throw '' + ${baseMsg} + + However there are no options defined in `${showOption prefix}'. Are you sure you've + declared your options properly? This can happen if you e.g. declared your options in `types.submodule' + under `config' rather than `options'. + '' else throw baseMsg else null; |