0
問題
我一直工作在一個Web服務器的抽象，但使用lib.mapAttrsToList總是返回一個無限遞歸錯誤：lib.mapAttrsToList和無限遞歸
# nixos-rebuild build
building Nix...
error: infinite recursion encountered, at /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/lib/modules.nix:59:71
(use ‘--show-trace’ to show detailed location information)
error: infinite recursion encountered, at /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/lib/modules.nix:59:71
(use ‘--show-trace’ to show detailed location information)
building the system configuration...
error: infinite recursion encountered, at /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/lib/modules.nix:59:71
(use ‘--show-trace’ to show detailed location information)
我已經添加的所有其他版本代碼，沒有返回infinite recursion錯誤，這是我不明白。
所以這裏是我的代碼：
configuration.nix
imports =
[ # Include the results of the hardware scan.
./hardware-configuration.nix
/home/joachim/Desktop/projects/nixcloud/nixcloud-webservices-abstraction/nextcloud.nix
];
services.nextcloud = {
enable=true;
networks = {
net1 = { name = "foo"; };
net2 = { name = "bar"; };
};
nixcloud.nix
{ config, options, lib, pkgs, ... }:
with lib;
let
mergeListToAttrs = fold (c: el: recursiveUpdate el c) {};
cfg = config.services.nextcloud;
in
{
options = {
services.nextcloud = {
networks = mkOption {
default = {};
# type = types.loaOf types.submodule;
options = {
name = mkOption {
default = "";
type = types.str;
};
};
};
enable = mkOption {
default = true;
type=types.bool;
description = ''
Whether to enable the cntlm, which start a local proxy.
'';
};
};
};
# example 1 - works
# config = {
# systemd.services = {
# bar = {
# wantedBy = [ "multi-user.target" ];
# after = [ "" ];
# };
# foo = {
# wantedBy = [ "multi-user.target" ];
# after = [ "" ];
# };
# };
# };
# example 2 - works
# config = {
# systemd.services = lib.flip lib.mapAttrs cfg.networks (network: data:
# {
# wantedBy = [ "multi-user.target" ];
# after = [ "network.target" ];
# serviceConfig = {
# ExecStart = "";
# ExecReload = "";
# Restart = "always";
# RestartSec = "10s";
# StartLimitInterval = "1min";
# };
# }
# );
# };
# example 3 - works
# config = {
# systemd.services = flip mapAttrs' cfg.networks (network: data: nameValuePair
# ("tinc.${network}")
# ({
# wantedBy = [ "multi-user.target" ];
# after = [ "network.target" ];
# serviceConfig = {
# ExecStart = "";
# ExecReload = "";
# Restart = "always";
# RestartSec = "10s";
# StartLimitInterval = "1min";
# };
# })
# );
# };
# example 4 - works
# config =
# mergeListToAttrs (
# [
# { systemd.services.a = {
# wantedBy = [ "multi-user.target" ];
# after = [ "network.target" ];
# serviceConfig = {
# ExecStart = "";
# ExecReload = "";
# Restart = "always";
# RestartSec = "10s";
# StartLimitInterval = "1min";
# };
# };
# }
# {
# systemd.services.b = {
# wantedBy = [ "multi-user.target" ];
# after = [ "network.target" ];
# serviceConfig = {
# ExecStart = "";
# ExecReload = "";
# Restart = "always";
# RestartSec = "10s";
# StartLimitInterval = "1min";
# };
# };
# }
# ]);
# example 5 - fails!
# XXXXXXXX the failing function XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
config =
mergeListToAttrs (
lib.flip lib.mapAttrsToList cfg.networks (wsName: wsConfig: {
systemd.services.${wsName} = {
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
serviceConfig = {
ExecStart = "";
ExecReload = "";
Restart = "always";
RestartSec = "10s";
StartLimitInterval = "1min";
};
};
})
);
}
據我可以看到唯一的區別是'mergeListToAttrs'函數;如果您替換它會發生什麼，例如由'頭'？ – Profpatsch