feat: nix flake

Signed-off-by: jolheiser <john.olheiser@gmail.com>

flake.lock

@@ -0,0 +1,60 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1694529238,
+        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1699923567,
+        "narHash": "sha256-oVMICs/4eZdIkbZvKs/JZe0SwrON/2d5veuwhBOrnmE=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "5d6c73222280b7f69109dfa5c9572f4b74c3453c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "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",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,45 @@
+{
+  description = "git-age";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = {
+    self,
+    flake-utils,
+    nixpkgs,
+  }:
+    flake-utils.lib.eachDefaultSystem (
+      system: let
+        pkgs = nixpkgs.legacyPackages.${system};
+        git-age = pkgs.buildGoModule rec {
+          pname = "git-age";
+          version = "0.0.3";
+
+          src = ./.;
+
+          vendorHash = "sha256-W+WDMGyKQaHSsPLg1sVsHCmu087Cu0y7hq0f4uaVDqA=";
+
+          ldflags = [
+            "-s"
+            "-w"
+            "-X=go.jolheiser.com/git-age/cmd.version=${version}"
+          ];
+
+          doCheck = false;
+
+          meta = with pkgs.lib; {
+            description = "";
+            homepage = "https://git.jojodev.com/jolheiser/git-age";
+            license = licenses.mpl20;
+            maintainers = with maintainers; [jolheiser];
+            mainProgram = "git-age";
+          };
+        };
+      in {
+        packages.default = git-age;
+      }
+    );
+}