feat: overlays + pkgs

.envrc

@@ -1,2 +1,3 @@
 export REPO_ROOT="$(pwd)"
+export REPO_HOSTNAME=$(hostname -s)
 use flake

.gitignore

@@ -3,3 +3,4 @@ venv/
 .direnv/
 result
 /kittywitch
+data/

common/nix.nix

@@ -3,13 +3,17 @@
   lib,
   std,
   inputs,
-  tree,
   ...
 }: let
   inherit (std) set tuple list;
   inherit (lib.strings) versionAtLeast;
-  renameAttrs = names: set.remap ({_0, _1}: tuple.tuple2 (names.${_0} or _0) _1);
-  renameAttr = oldName: newName: renameAttrs { ${oldName} = newName; };
+  renameAttrs = names:
+    set.remap ({
+      _0,
+      _1,
+    }:
+      tuple.tuple2 (names.${_0} or _0) _1);
+  renameAttr = oldName: newName: renameAttrs {${oldName} = newName;};
 in {
   nix = {
     nixPath = set.mapToValues (name: flake: "${name}=${flake.outPath}") (renameAttr "self" "kat" inputs);

common/overlay.nix

@@ -1,7 +1,9 @@
-{inputs, ...}: {
+{
+  inputs,
+  tree,
+  ...
+}: {
   nixpkgs = {
-    overlays = map (path: import "${path}/overlay.nix") [
-      inputs.arcexprs
-    ];
+    overlays = import tree.overlays {inherit inputs;};
   };
 }

flake.lock

@@ -59,6 +59,32 @@
         "type": "github"
       }
     },
+    "deploy-rs": {
+      "inputs": {
+        "flake-compat": [
+          "flake-compat"
+        ],
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "utils": [
+          "utils"
+        ]
+      },
+      "locked": {
+        "lastModified": 1674127017,
+        "narHash": "sha256-QO1xF7stu5ZMDLbHN30LFolMAwY6TVlzYvQoUs1RD68=",
+        "owner": "serokell",
+        "repo": "deploy-rs",
+        "rev": "8c9ea9605eed20528bf60fae35a2b613b901fd77",
+        "type": "github"
+      },
+      "original": {
+        "owner": "serokell",
+        "repo": "deploy-rs",
+        "type": "github"
+      }
+    },
     "empty": {
       "locked": {
         "lastModified": 1630400035,
@@ -95,7 +121,9 @@
         "nixpkgs": [
           "nixpkgs"
         ],
-        "utils": "utils"
+        "utils": [
+          "utils"
+        ]
       },
       "locked": {
         "lastModified": 1674041176,
@@ -219,6 +247,7 @@
       "inputs": {
         "arcexprs": "arcexprs",
         "darwin": "darwin",
+        "deploy-rs": "deploy-rs",
         "empty": "empty",
         "flake-compat": "flake-compat",
         "home-manager": "home-manager",
@@ -230,7 +259,7 @@
         "scalpel": "scalpel",
         "std": "std",
         "tree": "tree",
-        "utils": "utils_2"
+        "utils": "utils"
       }
     },
     "rust-overlay": {
@@ -333,21 +362,6 @@
         "repo": "flake-utils",
         "type": "github"
       }
-    },
-    "utils_2": {
-      "locked": {
-        "lastModified": 1667395993,
-        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
     }
   },
   "root": "root",

flake.nix

@@ -14,10 +14,22 @@
     empty.url = "github:input-output-hk/empty-flake";
     # self-explanatory
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    # deployments
+    deploy-rs = {
+      url = "github:serokell/deploy-rs";
+      inputs = {
+        flake-compat.follows = "flake-compat";
+        nixpkgs.follows = "nixpkgs";
+        utils.follows = "utils";
+      };
+    };
     # self-explanatory
     home-manager = {
       url = "github:nix-community/home-manager/master";
-      inputs.nixpkgs.follows = "nixpkgs";
+      inputs = {
+        nixpkgs.follows = "nixpkgs";
+        utils.follows = "utils";
+      };
     };
     # self-explanatory
     darwin = {
@@ -76,5 +88,5 @@
       flake = false;
     };
   };
-  outputs = inputs: import ./outputs.nix { inherit inputs; };
+  outputs = inputs: import ./outputs.nix {inherit inputs;};
 }

formatter.nix

@@ -0,0 +1,8 @@
+{
+  inputs,
+  pkgs,
+  ...
+}:
+inputs.utils.lib.eachDefaultSystem (system: {
+  ${system} = pkgs.${system}.alejandra;
+})

nixos/common/nix-index.nix

@@ -0,0 +1,3 @@
+_: {
+  programs.command-not-found.enable = false;
+}

nixos/common/nix.nix

@@ -1,6 +1,11 @@
 {lib, ...}: let
   inherit (lib.modules) mkDefault;
 in {
+  boot.loader = {
+    grub.configurationLimit = 8;
+    systemd-boot.configurationLimit = 8;
+  };
+
   nix.gc = {
     automatic = mkDefault true;
     dates = mkDefault "weekly";

outputs.nix

@@ -1,8 +1,12 @@
-{ inputs }: let
+{inputs}: let
   inherit (inputs.nixpkgs) lib;
   std = import ./std.nix {inherit inputs;};
   tree = import ./tree.nix {inherit inputs;};
   systems = import ./systems {inherit inputs tree lib std;};
-  shells = import ./shells {inherit inputs tree lib std;};
+  shells = import ./shells {inherit inputs tree lib std pkgs;};
+  inherit (import ./pkgs.nix {inherit inputs tree lib;}) pkgs;
+  formatter = import ./formatter.nix {inherit inputs pkgs;};
+  inherit (std) set;
+  checks = set.map (_: deployLib: deployLib.deployChecks inputs.self.deploy) inputs.deploy-rs.lib;
 in
-  {inherit inputs tree lib std;} // systems // shells
+  {inherit inputs tree lib std pkgs checks formatter;} // systems // shells

overlays.nix

@@ -0,0 +1,7 @@
+{inputs, ...}:
+[
+  inputs.deploy-rs.overlay
+]
+++ map (path: import "${path}/overlay.nix") [
+  inputs.arcexprs
+]

pkgs.nix

@@ -0,0 +1,9 @@
+{
+  lib,
+  tree,
+  inputs,
+  ...
+}: let
+  overlays = import tree.overlays {inherit inputs;};
+in
+  inputs.utils.lib.eachDefaultSystem (system: {pkgs = import inputs.nixpkgs {inherit system overlays;};})

shells/default.nix

@@ -3,6 +3,7 @@
   tree,
   inputs,
   std,
+  pkgs,
   ...
 }: let
   inherit (std) set;
@@ -10,9 +11,9 @@ in
   inputs.utils.lib.eachDefaultSystem (system: {
     devShells = let
       shells = set.map (_: path:
-        import path rec {
+        import path {
           inherit tree inputs system lib std;
-          pkgs = inputs.nixpkgs.legacyPackages.${system};
+          pkgs = pkgs.${system};
         })
       tree.shells;
     in

shells/repo.nix

@@ -5,20 +5,33 @@
   ...
 }:
 with pkgs; let
-  repo = import ../outputs.nix { inherit inputs; };
-  inherit (std) set list;
+  repo = import ../outputs.nix {inherit inputs;};
+  inherit (std) set;
   repoShell = mkShell {
     nativeBuildInputs =
       [
+        fd # fd, better fine!
+        ripgrep # rg, better grep!
         go # Required for pulumi
         pulumi-bin # Infrastructure as code
         deadnix # dead-code scanner
         alejandra # code formatter
         statix # anti-pattern finder
+        deploy-rs.deploy-rs # deployment system
       ]
       ++ set.values (set.map (name: _: (pkgs.writeShellScriptBin "${name}-rebuild" ''
           darwin-rebuild switch --flake $REPO_ROOT#${name}
         ''))
         repo.darwinConfigurations);
+    shellHook = ''
+      echo -e "\e[39m\e[1m$USER@$REPO_HOSTNAME - \e[35m''$(realpath --relative-to=../ ./nixos/)\e[0m"
+      echo -e "\e[35mRunning alejandra\e[0m"
+      alejandra -cq $(fd -e nix)
+      echo -e "\e[35mRunning statix\e[0m"
+      statix check
+      echo -e "\e[35mRunning deadnix\e[0m"
+      deadnix
+    '';
   };
-in repoShell
+in
+  repoShell

std.nix

@@ -1,44 +1,57 @@
-{ inputs, ... }: let
+{inputs, ...}: let
   std = let
     baseStd = inputs.std.lib;
     inherit (baseStd) set function list bool types optional;
     mergeWith = let
       append = {
-        path
-      , values
-      , canMerge
-      , mapToSet
+        path,
+        values,
+        canMerge,
+        mapToSet,
       }: let
-        mergeWith' = values: mergeWith {
+        mergeWith' = values:
+          mergeWith {
             inherit canMerge mapToSet path;
             sets = list.map (v: (mapToSet path v).value) values;
           };
         mergeUntil = list.findIndex (function.not (canMerge path)) values;
         len = list.length values;
-      in if len == 0 then { }
-      else if len == 1 then list.unsafeHead values
-      else if list.all (canMerge path) values then mergeWith' values
-      else optional.match mergeUntil {
+      in
+        if len == 0
+        then {}
+        else if len == 1
+        then list.unsafeHead values
+        else if list.all (canMerge path) values
+        then mergeWith' values
+        else
+          optional.match mergeUntil {
             just = i: let
               split = list.splitAt i values;
-        in if i > 0
+            in
+              if i > 0
               then mergeWith' split._0
               else list.unsafeHead values;
             nothing = list.unsafeHead values;
           };
-    in {
+    in
+      {
         canMerge ? path: v: optional.isJust (mapToSet path v),
-      mapToSet ? path: v: bool.toOptional (types.attrs.check v) v,
-      path ? [ ],
-      sets
-    }: set.mapZip (name: values: append {
+        mapToSet ? _: v: bool.toOptional (types.attrs.check v) v,
+        path ? [],
+        sets,
+      }:
+        set.mapZip (name: values:
+          append {
             path = path ++ list.One name;
             inherit canMerge mapToSet values;
-    }) sets;
-    merge = sets: mergeWith {
+          })
+        sets;
+    merge = sets:
+      mergeWith {
         inherit sets;
       };
-  in merge [
+  in
+    merge [
       baseStd
       {
         function = {
@@ -60,4 +73,5 @@
         };
       }
     ];
-in std
+in
+  std

systems/default.nix

@@ -7,7 +7,7 @@
 }: let
   # The purpose of this file is to set up the host module which allows assigning of the system, e.g. aarch64-linux and the builder used with less pain.
   inherit (lib.modules) evalModules;
-  inherit (std) string list function types bool optional set;
+  inherit (std) string types optional set;
   defaultSpecialArgs = {
     inherit inputs tree std;
   };
@@ -106,6 +106,27 @@
   processHost = name: cfg: let
     host = cfg.config;
   in {
+    deploy.nodes = set.merge [
+      (set.optional (host.folder == "nixos") {
+        ${name} = {
+          profiles.system = {
+            user = "root";
+            path = inputs.deploy-rs.lib.x86_64-linux.activate.nixos inputs.self.nixosConfigurations.${name};
+          };
+          hostname = "${name}.inskip.me";
+          sshOpts = ["-p" "${builtins.toString (builtins.head inputs.self.nixosConfigurations.${name}.config.services.openssh.ports)}"];
+          sshUser = "kat";
+          user = "root";
+          autoRollback = true;
+          magicRollback = true;
+        };
+      })
+      (set.optional (host.folder == "nixos" && host.arch != "x86_64") {
+        ${name} = {
+          remoteBuild = true;
+        };
+      })
+    ];
     "${host.folder}Configurations".${name} = let
       hostConfig = host.builder {
         inherit (host) system modules specialArgs;