From 89de6a658b32c96c8f76bcf6b5e9be31467846d4 Mon Sep 17 00:00:00 2001
From: Emery Hemingway <ehmry@posteo.net>
Date: Fri, 3 Sep 2021 18:37:39 +0200
Subject: [PATCH] preserves-nim: init at 1.0.0

This package contains the "preserves_schema_nim" utility for
generating Nim modules from Preserves schema.

The nixpkgs input of the flake has been moved to bring in the
"buildNimPackage" function, which is not yet in master. See
https://github.com/NixOS/nixpkgs/pull/136489
---
 flake.lock                | 14 ++++++++------
 flake.nix                 |  7 +++++--
 preserves-nim/default.nix | 33 +++++++++++++++++++++++++++++++++
 3 files changed, 46 insertions(+), 8 deletions(-)
 create mode 100644 preserves-nim/default.nix

diff --git a/flake.lock b/flake.lock
index 944b3a2..188d193 100644
--- a/flake.lock
+++ b/flake.lock
@@ -17,16 +17,18 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1630572390,
-        "narHash": "sha256-xPqD/SFQ/QKxR85ZQ/WkNEAI6yfCW0XFXmmWBp2KKLw=",
-        "owner": "NixOS",
+        "lastModified": 1630679442,
+        "narHash": "sha256-wPCqej7mCmt8g4OXDQE/SCyhNF72GS9ws5pzmCiM/C0=",
+        "owner": "ehmry",
         "repo": "nixpkgs",
-        "rev": "f6645fdf90d443c38fbc98125a4665f5e798e807",
+        "rev": "8fbf6c0f2a1b973dde6707ab471910312312b225",
         "type": "github"
       },
       "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
+        "owner": "ehmry",
+        "ref": "nimPackages",
+        "repo": "nixpkgs",
+        "type": "github"
       }
     },
     "nixpkgs_2": {
diff --git a/flake.nix b/flake.nix
index ce84969..43b1fb4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,6 +1,7 @@
 {
   description = "Syndicate utilities";
 
+  inputs.nixpkgs.url = "github:ehmry/nixpkgs/nimPackages";
   inputs.rust.url = "github:oxalica/rust-overlay";
 
   outputs = { self, nixpkgs, rust }:
@@ -14,13 +15,15 @@
         let rust' = (prev.extend rust.overlay).rust-bin.nightly.latest.default;
         in {
           lib = prev.lib.extend libOverlay;
-          preserves-tools = final.callPackage ./preserves-tools { rust = rust'; };
+          preserves-nim = final.callPackage ./preserves-nim { };
+          preserves-tools =
+            final.callPackage ./preserves-tools { rust = rust'; };
           syndicate-rs = final.callPackage ./syndicate-rs { rust = rust'; };
         };
 
       packages = forEachSystem (system:
         let pkgs = nixpkgs.legacyPackages.${system}.extend self.overlay;
-        in with pkgs; { inherit preserves-tools syndicate-rs; });
+        in with pkgs; { inherit preserves-nim preserves-tools syndicate-rs; });
 
       nixosModules.syndicate-server =
         # A little hack to apply our overlay to this module only.
diff --git a/preserves-nim/default.nix b/preserves-nim/default.nix
new file mode 100644
index 0000000..8715a7e
--- /dev/null
+++ b/preserves-nim/default.nix
@@ -0,0 +1,33 @@
+{ lib, nimPackages, fetchgit }:
+with nimPackages;
+
+let
+  bigints = fetchNimble {
+    pname = "bigints";
+    version = "0.5.0";
+    hash = "sha256-zMTXXC0lYVzXaKl8eC/SA/CymRgovgzxBdvEn1VE9p0=";
+  };
+
+  compiler = fetchNimble {
+    pname = "compiler";
+    version = "1.4.8";
+    hash = "sha256-OaSe9Bn/+rjVk4pJKjjwI9rpnDm/T7lRmKeh/DOPn38=";
+  };
+
+  npeg = fetchNimble {
+    pname = "npeg";
+    version = "0.24.1";
+    hash = "sha256-AKYDrR38345CQxV7kLvglGmkc/m8EX6TGtaFckJL3Dc=";
+  };
+
+in buildNimPackage rec {
+  outputs = [ "out" "dev" ];
+  pname = "preserves";
+  version = "1.0.0";
+  src = fetchgit {
+    url = "https://git.sr.ht/~ehmry/preserves-nim";
+    rev = "v${version}";
+    sha256 = "18702q7vmyf5kkgn9nqf96kcar5pqxisf03ybrqw3hfp95vxixn4";
+  };
+  buildInputs = [ compiler bigints npeg ];
+}