From bf460fb581eba1bdce487c9adf791d03b2351487 Mon Sep 17 00:00:00 2001
From: Alex Mason <git@axman6.com>
Date: Thu, 28 Mar 2024 17:30:35 +1100
Subject: [PATCH] Add nix flake

---
 .gitignore    |  3 ++
 cabal.project |  3 +-
 flake.lock    | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++
 flake.nix     | 57 ++++++++++++++++++++++++++++++++++++
 4 files changed, 142 insertions(+), 1 deletion(-)
 create mode 100644 flake.lock
 create mode 100644 flake.nix

diff --git a/.gitignore b/.gitignore
index a4ee41a..bc08c14 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,3 +17,6 @@ cabal.sandbox.config
 *.eventlog
 .stack-work/
 cabal.project.local
+
+# Nix build output
+result
diff --git a/cabal.project b/cabal.project
index e6fdbad..1671440 100644
--- a/cabal.project
+++ b/cabal.project
@@ -1 +1,2 @@
-packages: .
+packages:
+  .
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..ed232b5
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,80 @@
+{
+  "nodes": {
+    "flake-parts": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
+      "locked": {
+        "lastModified": 1709336216,
+        "narHash": "sha256-Dt/wOWeW6Sqm11Yh+2+t0dfEWxoMxGBvv3JpIocFl9E=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "f7b3c975cf067e56e7cda6cb098ebe3fb4d74ca2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "haskell-flake": {
+      "locked": {
+        "lastModified": 1711568381,
+        "narHash": "sha256-IvVqTNcbSNh6XgyS4ikBkQio1eMmLvKTl3vAvkVPn+0=",
+        "owner": "srid",
+        "repo": "haskell-flake",
+        "rev": "5dcb739e9cc4e0edf5267de665fa7a905a543baa",
+        "type": "github"
+      },
+      "original": {
+        "owner": "srid",
+        "repo": "haskell-flake",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1711562861,
+        "narHash": "sha256-ETfttWNpw5HSfC8QeGYPXkJZWnj8MPVxIVuCE3nFqKA=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "feb8fc72187e5beae47d81fc38541fae89e7eaf8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-lib": {
+      "locked": {
+        "dir": "lib",
+        "lastModified": 1709237383,
+        "narHash": "sha256-cy6ArO4k5qTx+l5o+0mL9f5fa86tYUX3ozE1S+Txlds=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "1536926ef5621b09bba54035ae2bb6d806d72ac8",
+        "type": "github"
+      },
+      "original": {
+        "dir": "lib",
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-parts": "flake-parts",
+        "haskell-flake": "haskell-flake",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..2632afa
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,57 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    haskell-flake.url = "github:srid/haskell-flake";
+  };
+  outputs = inputs@{ self, nixpkgs, flake-parts, ... }:
+    flake-parts.lib.mkFlake { inherit inputs; } {
+      systems = nixpkgs.lib.systems.flakeExposed;
+      imports = [ inputs.haskell-flake.flakeModule ];
+
+      perSystem = { self', pkgs, ... }: {
+
+        # Typically, you just want a single project named "default". But
+        # multiple projects are also possible, each using different GHC version.
+        haskellProjects.default = {
+          # The base package set representing a specific GHC version.
+          # By default, this is pkgs.haskellPackages.
+          # You may also create your own. See https://zero-to-flakes.com/haskell-flake/package-set
+          # basePackages = pkgs.haskellPackages;
+
+          # Extra package information. See https://zero-to-flakes.com/haskell-flake/dependency
+          #
+          # Note that local packages are automatically included in `packages`
+          # (defined by `defaults.packages` option).
+          #
+          # packages = {
+          #   aeson.source = "1.5.0.0"; # Hackage version override
+          #   shower.source = inputs.shower;
+          # };
+          # settings = {
+          #   aeson = {
+          #     check = false;
+          #   };
+          #   relude = {
+          #     haddock = false;
+          #     broken = false;
+          #   };
+          # };
+
+          devShell = {
+           # Enabled by default
+           enable = true;
+
+           # Programs you want to make available in the shell.
+           # Default programs can be disabled by setting to 'null'
+           tools = hp: { fourmolu = hp.fourmolu; ghcid = null; };
+
+           hlsCheck.enable = true;
+          };
+        };
+
+        # haskell-flake doesn't set the default package, but you can do it here.
+        packages.default = self'.packages.amazonka-s3-streaming;
+      };
+    };
+}