summaryrefslogtreecommitdiff
path: root/flake.nix
blob: ea3d0747caeab9ac31f9d8d4b64788e5354919d3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
{
  description = "GKleen's flakey nixos configuration";

  inputs = {
    nixpkgs = {
      type = "github";
      owner = "NixOS";
      repo = "nixpkgs";
      ref = "master";
    };
    home-manager = {
      type = "github";
      owner = "nix-community";
      repo = "home-manager";
      ref = "master";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    sops-nix = {
      type = "github";
      owner = "Mic92";
      repo = "sops-nix";
      ref = "master";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixpkgs, home-manager, sops-nix }@inputs:
    let
      inherit (builtins) attrNames attrValues elemAt toJSON isNull pathExists;
      inherit (nixpkgs) lib;
      utils = import ./utils { inherit lib; };
      inherit (utils) recImport overrideModule;
      inherit (lib) nixosSystem mkIf splitString filterAttrs listToAttrs mapAttrsToList nameValuePair concatMap composeManyExtensions mapAttrs mapAttrs' recursiveUpdate genAttrs unique elem optionalAttrs;

      accountUserName = accountName: 
        let
          accountName' = splitString "@" accountName;
        in elemAt accountName' 0;
      accountHostName = accountName: 
        let
          accountName' = splitString "@" accountName;
        in elemAt accountName' 1;

      mkNixosConfiguration = addProfiles: dir: path: hostName: nixosSystem rec {
        specialArgs = {
          flake = self;
          flakeInputs = inputs;
          path = ./.;
        };
        modules =
          let
            defaultProfiles = with self.nixosModules.systemProfiles;
              [ core
              ];

            local = dir + "/${path}";
            argsModule._module.args = {
              customUtils = utils;
              inherit hostName;
            };
            accountModules = attrValues (filterAttrs accountMatchesHost self.nixosModules.accounts);
            accountMatchesHost = n: _v: accountHostName n == hostName;
          in attrValues (filterAttrs (n: _v: !(elem n ["systemProfiles" "users" "userProfiles" "accounts"])) self.nixosModules) ++ [ argsModule ] ++ defaultProfiles ++ addProfiles ++ [ local ] ++ accountModules;
      };

      mkSystemProfile = dir: path: profileName: {
        imports = [ (dir + "/${path}") ];
        config = {
          system.profiles = [profileName];
        };
      };

      defaultUserProfiles = userName: with self.nixosModules.userProfiles.${userName};
        [ core
        ];

      mkUserModule = dir: path: userName:
        overrideModule (import (dir + "/${path}"))
                       (inputs: inputs // { inherit userName; })
                       (outputs: { _file = dir + "/${path}"; }
                              // outputs
                              // { imports = defaultUserProfiles userName ++ (outputs.imports or []); });
      
      mkUserProfile = userName: dir: path: profileName:
        let
          profileModule = overrideModule (import (dir + "/${path}"))
                                         (inputs: inputs // { inherit userName; })
                                         (outputs: { _file = dir + "/${path}"; }
                                                // outputs);
        in {
          imports = [profileModule];
          config = {
            users.users.${userName}.profiles = [profileName];
          };
        };

      mkAccountModule = dir: path: accountName:
        let
          userName = accountUserName accountName;
        in overrideModule
             (import (dir + "/${path}"))
             (inputs: inputs // { inherit userName; })
             (outputs: { _file = dir + "/${path}"; }
                      // outputs
                      // { imports = [self.nixosModules.users.${userName} or ({...}: { imports = defaultUserProfiles userName; })] ++ (outputs.imports or []); });

      forAllSystems = f: mapAttrs f nixpkgs.legacyPackages;
      forAllUsers = genAttrs (unique (map accountUserName (attrNames self.nixosModules.accounts)));

      activateNixosConfigurations = forAllSystems (system: _pkgs: mapAttrs' (hostName: nixosConfig: nameValuePair "${hostName}-activate" { type = "app"; program = "${nixosConfig.config.system.build.toplevel}/bin/switch-to-configuration"; }) self.nixosConfigurations);

      overlayPaths = recImport rec { dir = ./overlays; _import = (path: _name: dir + "/${path}"); } // { pkgs = ./pkgs; };

      installerProfiles = system:
        let nixpkgs-path = nixpkgs.legacyPackages.${system}.path;
        in mapAttrs (name: {path, output}: { profile = mkSystemProfile nixpkgs-path path "installer-${name}"; inherit output; })
          { cd-dvd = { path = "nixos/modules/installer/cd-dvd/installation-cd-minimal.nix"; output = out: out.config.system.build.isoImage; };
            netboot = { path = "nixos/modules/installer/netboot/netboot-minimal.nix"; output = out: (self.legacyPackages.${system}.symlinkJoin { name = "netboot"; paths = with out.config.system.build; [ netbootRamdisk kernel netbootIpxeScript ]; preferLocalBuild = true; }); };
          };

      installerConfig = if pathExists ./installer.nix then "installer.nix" else (if pathExists ./installer then "installer" else null);
      installers =
        let mkInstallers = system: mapAttrs (mkInstaller system) (installerProfiles system);
            mkInstaller = system: name: {profile, output}: output (mkNixosConfiguration [profile { config = { nixpkgs.system = system; }; }] ./. installerConfig "installer");
        in if !(isNull installerConfig) then { installers = forAllSystems (system: _systemPkgs: mkInstallers system); } else {};
    in
      {
        nixosModules =
          let modulesAttrs = recImport { dir = ./modules; };
              systemProfiles = recImport rec { dir = ./system-profiles; _import = mkSystemProfile dir; };
              users = recImport rec { dir = ./users; _import = mkUserModule dir; };
              userProfiles = forAllUsers (userName: recImport rec { dir = ./user-profiles; _import = mkUserProfile userName dir; });
              accounts = recursiveUpdate rootAccounts (recImport rec { dir = ./accounts; _import = mkAccountModule dir; });
              rootAccounts = mapAttrs' (hostName: _value: nameValuePair "root@${hostName}" ({...}: { imports = [ self.nixosModules.users.root or ({...}: { imports = defaultUserProfiles "root"; }) ]; })) self.nixosConfigurations;
          in modulesAttrs // { inherit systemProfiles users userProfiles accounts; };
        nixosConfigurations = optionalAttrs (!(isNull installerConfig)) { installer = installerConfig; } // recImport rec { dir = ./hosts; _import = mkNixosConfiguration [] dir; };

        homeManagerModules = recImport rec { dir = ./home-modules; };

        overlay = import overlayPaths.pkgs;
        overlays = mapAttrs (_name: path: import path) overlayPaths;
        overlays-path = forAllSystems (system: _: self.legacyPackages.${system}.writeText "overlays.nix" ''
          map import (builtins.attrValues (builtins.fromJSON (builtins.readFile ${self.legacyPackages.${system}.writeText "overlays.json" (toJSON overlayPaths)})))
        '');

        packages = forAllSystems (system: systemPkgs: composeManyExtensions (attrValues self.overlays) (self.legacyPackages.${system}) systemPkgs);

        legacyPackages = forAllSystems (system: systemPkgs: recursiveUpdate systemPkgs self.packages.${system});

        apps = activateNixosConfigurations;

        devShell = forAllSystems (system: systemPkgs: import ./shell.nix { pkgs = self.legacyPackages.${system}; });

        defaultTemplate = {
          path = ./.;
          description = "GKleen's flakey nixos configuration";
        };
      } // installers;
}