Error when using nodes fixed point from a function in an option #94
Comments
Stacktrace |
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First thing you'll want to do with these traces is grep for The top is closes to the problem, so for this trace, it's somewhere in a |
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The example with the users.motd is just for a trivial reproducer with as few moving parts as possible. I've managed to reduce the test case further. The crux appears to be exposing the {
"foo" = { ... }: {
config.networking.hostName = "foo";
};
"quux" = { config, lib, ... }: with lib; {
users.motd = config.utils.allNodes.foo.config.networking.hostName;
};
"defaults" = { name, lib, nodes, ... }:
{
options.utils.allNodes = lib.mkOption {
type = lib.types.anything;
readOnly = true;
default = nodes;
};
config = {
boot.loader.grub.devices = ["/dev/sda"];
system.stateVersion = "22.05";
fileSystems."/" =
{ device = "/dev/disk/by-uuid/94dcf2a2-07c2-4095-a6d5-a8249230a04e";
fsType = "ext4";
};
};
};
} |
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And for what its worth, I couldn't make heads or tails of the stack trace. If you have any pointers I'm all ears. The specific error usually occurs when you have something like |
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What's even weirder, is that {
"foo" = { ... }: {
config.networking.hostName = "foo";
};
"quux" = { config, lib, allNodes, ... }: with lib; {
users.motd = allNodes.foo.config.networking.hostName;
};
"defaults" = { name, lib, nodes, ... }:
{
config = {
_module.args.allNodes = nodes;
boot.loader.grub.devices = ["/dev/sda"];
system.stateVersion = "22.05";
fileSystems."/" =
{ device = "/dev/disk/by-uuid/94dcf2a2-07c2-4095-a6d5-a8249230a04e";
fsType = "ext4";
};
};
};
}works fine. |
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So there's some foul interaction with the nodes fixed point and the config fixed point. |
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It appears to be related to config merging. The reproducer works if you suppress config merging for --- a/hive.nix
+++ b/hive.nix
@@ -9,7 +9,7 @@
"defaults" = { name, lib, nodes, ... }:
{
options.utils.allNodes = lib.mkOption {
- type = lib.types.anything;
+ type = lib.types.raw;
readOnly = true;
default = nodes;
}; |
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When I use a function inside an option definition, which itself refers to other nodes config, I get an inexplicable error
A reproducer can be found at https://github.com/dminuoso/colmena-fixed-point-bug
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