initial commit

templates/dev/flask-hello/flake.nix

@@ -0,0 +1,77 @@
+{
+  description = "A hello world template for Python Flask";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    pre-commit-hooks = {
+      url = "github:cachix/pre-commit-hooks.nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs =
+    {
+      self,
+      nixpkgs,
+      ...
+    }:
+    let
+      supportedSystems = [
+        "x86_64-linux"
+        "aarch64-linux"
+        "x86_64-darwin"
+        "aarch64-darwin"
+      ];
+
+      forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
+
+      nixpkgsFor = forAllSystems (
+        system:
+        import nixpkgs {
+          inherit system;
+          overlays = [ self.overlays.default ];
+        }
+      );
+    in
+    {
+      overlays.default = final: _prev: {
+        flask_hello = self.packages.${final.system}.default;
+      };
+
+      packages = forAllSystems (system: {
+        default = nixpkgsFor.${system}.callPackage ./nix/package.nix { };
+      });
+
+      devShells = forAllSystems (system: {
+        default = import ./nix/shell.nix { pkgs = nixpkgsFor.${system}; };
+      });
+
+      nixosModules = {
+        flask_hello = import ./nix/module.nix;
+      };
+
+      formatter = forAllSystems (
+        system:
+        let
+          pkgs = nixpkgs.legacyPackages.${system};
+          config = self.checks.${system}.pre-commit-check.config;
+          inherit (config) package configFile;
+          script = ''
+            ${pkgs.lib.getExe package} run --all-files --config ${configFile}
+          '';
+        in
+        pkgs.writeShellScriptBin "pre-commit-run" script
+      );
+
+      checks = forAllSystems (system: {
+        build-packages = nixpkgsFor."${system}".linkFarm "flake-packages-${system}" self.packages.${system};
+        pre-commit-check = self.inputs.pre-commit-hooks.lib.${system}.run {
+          src = ./.;
+          hooks = {
+            nixfmt.enable = true;
+            black.enable = true;
+          };
+        };
+      });
+    };
+}