hello,
i would like to print the filename + loc of configuration.nix port
assignment in port-module.nix 'throw' line. how to get this information
from nix?
* in nixpkgs/lib/types.nix i see `loc` information for the various merge
functions.
* lib nixpkgs/lib/debug.nix i found traceCall/traceCall2/traceCall3 but
no examples of those in usage
IIRC there was a function which traces back the value to the filename +
loc but i can't find it anymore.
anyone knows how to get these values?
# configuration.nix
services.portBB = {
"lastlog.de" = {
"/status" = {
port = 8000;
path = "/status";
};
};
};
# port-module.nix:
services.portBB = mkOption {
type = types.attrsOf (types.attrsOf (types.submodule {
options.port = mkOption {
type = types.int;
apply = p: if p == 8000 then throw "Port ${toString p} may not
be used!" else p;
};
options.path = mkOption {
type = types.path;
};
}));
};
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