initial commit

.gitignore

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+# direnv
+.direnv
+.envrc
+
+# nix builds
+result

flake.lock

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+{
+  "nodes": {
+    "flake-utils": {
+      "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"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1669261230,
+        "narHash": "sha256-AjddxRPd5y5jge77281P3O8+Cnafj842Xg59rwV4x+0=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "8e8b5f3b1e899bf5d250279578c0283705b8cdb4",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  inputs = {
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils, ... }:
+    let
+      inherit (builtins) listToAttrs mapAttrs;
+
+      mkPackage = pkgs: name: pkgs.callPackage ./pkgs/${name}.nix { };
+      mkApp = drv: flake-utils.lib.mkApp { inherit drv; };
+      mkOverlay = name:
+        final: prev:
+          final.setAttrByPath [ name ] (mkPackage name prev);
+
+      allPackageNames = [ "d2" ];
+      mkAllPackages = pkgs':
+        listToAttrs
+          (map
+            (name: { inherit name; value = mkPackage pkgs' name; })
+            allPackageNames);
+    in
+    {
+      overlays = (listToAttrs
+        (map
+          (name: { inherit name; value = mkOverlay name; })
+          allPackageNames
+        )
+      ) // {
+        all = final: prev: mkAllPackages prev;
+      };
+    }
+    // flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs { inherit system; };
+        packages = mkAllPackages pkgs;
+      in
+      {
+        check = packages;
+
+        inherit packages;
+        apps = mapAttrs (name: mkApp) packages;
+      });
+}

pkgs/d2.nix

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+{ lib
+, buildGoModule
+, fetchFromGitHub
+, installShellFiles
+}:
+
+let version = "0.0.13"; in
+
+buildGoModule {
+  pname = "d2";
+  inherit version;
+
+  src = fetchFromGitHub {
+    owner = "terrastruct";
+    repo = "d2";
+    rev = "v${version}";
+    sha256 = "sha256-2abGQmgwqxWFk7NScdgfEjRYZF2rw8kxTKRwcl2LRg0=";
+  };
+
+  vendorSha256 = "sha256-/BEl4UqOL4Ux7I2eubNH2YGGl4DxntpI5WN9ggvYu80=";
+
+  ldflags = [
+    "-s"
+    "-w"
+    "-X oss.terrastruct.com/d2/lib/version.Version=${version}"
+  ];
+
+  nativeBuildInputs = [ installShellFiles ];
+
+  postInstall = "installManPage ci/release/template/man/d2.1";
+
+  subPackages = [ "cmd/d2" ];
+}