From b8bf494ac1c20e7ef19f8797123bf5ad87b4c8a8 Mon Sep 17 00:00:00 2001
From: Pim Kunis <pim@kunis.nl>
Date: Sat, 21 Oct 2023 20:10:11 +0200
Subject: [PATCH] add top-level flake

---
 flake.lock | 27 +++++++++++++++++++++
 flake.nix  | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 97 insertions(+)
 create mode 100644 flake.lock
 create mode 100644 flake.nix

diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..fd481ad
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1697793076,
+        "narHash": "sha256-02e7sCuqLtkyRgrZmdOyvAcQTQdcXj+vpyp9bca6cY4=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "038b2922be3fc096e1d456f93f7d0f4090628729",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..5f03ecf
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,70 @@
+{
+  description = "Generic development environment for my projects";
+
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+
+  outputs = { self, nixpkgs }:
+    let
+      # overlays = [
+      #   (final: prev:
+      #     let
+      #       exec = pkg: "${prev.${pkg}}/bin/${pkg}";
+      #     in
+      #     {
+      #       format = prev.writeScriptBin "format" ''
+      #         ${exec "nixpkgs-fmt"} **/*.nix
+      #       '';
+      #       dvt = prev.writeScriptBin "dvt" ''
+      #         if [ -z $1 ]; then
+      #           echo "no template specified"
+      #           exit 1
+      #         fi
+
+      #         TEMPLATE=$1
+
+      #         ${exec "nix"} \
+      #           --experimental-features 'nix-command flakes' \
+      #           flake init \
+      #           --template \
+      #           "github:the-nix-way/dev-templates#''${TEMPLATE}"
+      #       '';
+      #       update = prev.writeScriptBin "update" ''
+      #         for dir in `ls -d */`; do # Iterate through all the templates
+      #           (
+      #             cd $dir
+      #             ${exec "nix"} flake update # Update flake.lock
+      #             ${exec "nix"} flake check  # Make sure things work after the update
+      #           )
+      #         done
+      #       '';
+      #     })
+      # ];
+      supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
+      forEachSupportedSystem = f: nixpkgs.lib.genAttrs supportedSystems (system: f {
+        pkgs = import nixpkgs { inherit system; }; #overlays
+      });
+    in
+    {
+      devShells = forEachSupportedSystem ({ pkgs }: {
+        default = pkgs.mkShell {
+          packages = with pkgs; [ format update ];
+        };
+      });
+
+      packages = forEachSupportedSystem ({ pkgs }: rec {
+        default = dvt;
+        inherit (pkgs) dvt;
+      });
+    }
+
+    //
+
+    {
+      templates = {
+        terraform = {
+          path = ./terraform;
+          description = "Terraform development environment";
+        };
+      };
+    };
+}