Create home-manager module for packer

flake.lock

@@ -77,24 +77,6 @@
         "type": "indirect"
       }
     },
-    "flake-utils": {
-      "inputs": {
-        "systems": "systems_2"
-      },
-      "locked": {
-        "lastModified": 1710146030,
-        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
     "nix-fetcher-data": {
       "inputs": {
         "flake-part": "flake-part",
@@ -172,11 +154,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1712608508,
-        "narHash": "sha256-vMZ5603yU0wxgyQeHJryOI+O61yrX2AHwY6LOFyV1gM=",
+        "lastModified": 1712791164,
+        "narHash": "sha256-3sbWO1mbpWsLepZGbWaMovSO7ndZeFqDSdX0hZ9nVyw=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "4cba8b53da471aea2ab2b0c1f30a81e7c451f4b6",
+        "rev": "1042fd8b148a9105f3c0aca3a6177fd1d9360ba5",
         "type": "github"
       },
       "original": {
@@ -189,7 +171,6 @@
     "root": {
       "inputs": {
         "clj-nix": "clj-nix",
-        "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs_2"
       }
     },
@@ -207,21 +188,6 @@
         "repo": "default",
         "type": "github"
       }
-    },
-    "systems_2": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
     }
   },
   "root": "root",

flake.nix

@@ -1,36 +1,31 @@
 {
-  description = "A clj-nix flake";
+  description = "Packer - Clojure application which boosts the luggage packing activity.";
 
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
-    flake-utils.url = "github:numtide/flake-utils";
     clj-nix.url = "github:jlesquembre/clj-nix";
   };
 
   outputs = {
     self,
     nixpkgs,
-    flake-utils,
     clj-nix,
-  }:
-    flake-utils.lib.eachDefaultSystem (system: {
-      packages = {
-        default = clj-nix.lib.mkCljApp {
-          pkgs = nixpkgs.legacyPackages.${system};
-          modules = [
-            # Option list:
-            # https://jlesquembre.github.io/clj-nix/options/
-            {
-              projectSrc = ./.;
-              name = "packer";
-              main-ns = "packer.main";
+  }: let
+    systems = [
+      "aarch64-linux"
+      "i686-linux"
+      "x86_64-linux"
+      "aarch64-darwin"
+      "x86_64-darwin"
+    ];
 
-              nativeImage.enable = false;
-
-              # customJdk.enable = true;
-            }
-          ];
-        };
-      };
+    forAllSystems = nixpkgs.lib.genAttrs systems;
+  in {
+    packages = forAllSystems (system: rec {
+      packer = nixpkgs.legacyPackages.${system}.callPackage ./package.nix {inherit clj-nix;};
+      default = packer;
     });
+
+    homeManagerModules.packer = import ./hm.module.nix self;
+  };
 }

hm.module.nix

@@ -0,0 +1,101 @@
+flake: {
+  config,
+  pkgs,
+  lib,
+  system,
+  ...
+}: let
+  cfg = config.programs.packer;
+  templatePath = "${config.home.homeDirectory}/.config/packer/template.clj";
+
+  app = pkgs.runCommand "packer" {buildInputs = [pkgs.makeWrapper];} ''
+    makeWrapper ${flake.outputs.packages.${system}.packer}/bin/packer $out/bin/packer --set PACKER_TEMPLATE_FILE "${templatePath}"
+  '';
+in {
+  options.programs.packer = with lib; {
+    enable = mkEnableOption "Packer application";
+
+    templateFile = mkOption {
+      type = types.nullOr types.path;
+      description = "The path to template file. If provided, the 'template' option will be ignored.";
+      default = null;
+      example = "./packer.template.clj";
+    };
+
+    template = mkOption {
+      type = types.str;
+      description = "The content of the template file written in Clojure language.";
+      default = ''
+        (use 'packer.model)
+        (require 'packer.util)
+
+        ; Define some useful function
+        ; to provide a constant number of items.
+        (defn x [n] (fn [_] n))
+
+        ; Define a store - the single source
+        ; of truth of all items from which
+        ; we are going to choose what we want to pack.
+        ; The items are grouped by categories.
+        (def store {
+          :cloths [
+            (->Item :t-shirt #(/ % 4))
+          ]
+
+          :electronics [
+            (->Item :smartphone (x 1))
+            (->Item :tablet (x 1))
+            (->Item :laptop (x 1))
+          ]
+        })
+
+        ; Define the display names for each
+        ; item, category and question.
+        (def i18n {
+          :nights? "How many nights?"
+          :tablet? "Do you need your tablet there?"
+          :laptop? "Do you need your laptop there?"
+          :electronics "Electronics"
+          :cloths "Cloths"
+          :t-shirt "T-shirt"
+          :smartphone "Smartphone"
+          :tablet "Tablet"
+          :laptop "Laptop"
+        })
+
+        ; Define some utility function
+        ; to generate preset basing on some question
+        (defn preset [question items seq]
+          (if (packer.util/ask-bool (get i18n question))
+            (concat seq items)
+            seq))
+
+        ; Define profile - a function which takes
+        ; a number of provided nights and produces
+        ; the sequence of all items which should
+        ; be in the target list. If the sequence is empty
+        ; no item will be produced on the target list.
+        (defn profile [nights]
+          (->> [:smartphone :t-shirt]
+              (preset :tablet? [:tablet])
+              (preset :laptop? [:laptop])))
+
+        ; Wrap it up together. It should be
+        ; the last expression in the file.
+        (->Template store i18n profile)
+      '';
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    home.packages = [app];
+    home.file.${templatePath} =
+      if (cfg.templateFile != null)
+      then {
+        source = cfg.templateFile;
+      }
+      else {
+        text = cfg.template;
+      };
+  };
+}

package.nix

@@ -0,0 +1,21 @@
+{
+  pkgs,
+  clj-nix,
+  ...
+}:
+clj-nix.lib.mkCljApp {
+  inherit pkgs;
+  modules = [
+    # Option list:
+    # https://jlesquembre.github.io/clj-nix/options/
+    {
+      projectSrc = ./.;
+      name = "packer";
+      main-ns = "packer.main";
+
+      nativeImage.enable = false;
+
+      # customJdk.enable = true;
+    }
+  ];
+}