.gitlab-ci.yml

 stages:
-- generate
-- check
+- build
+- devour
+- cachix
 
-generate-flake-ci:
-  stage: generate
-  script: nix run "git+https://gitlab.homotopic.tech/haskell/flake-to-gitlab-ci" > flake-ci.yml
-  artifacts:
-    paths:
-      - flake-ci.yml
+build:
+  stage: build
+  script:
+  - nix build .#packages.$SYSTEM.$PACKAGE -L
+  parallel:
+    matrix:
+      - SYSTEM:
+         - aarch64-darwin
+         - x86_64-linux
+        PACKAGE:
+         - aeson
+         - beam-postgres
+         - composite-base
+         - dhall
+         - hedgehog
+         - hoauth2-providers
+         - log-effectful
+         - persistent-postgresql
+         - polysemy
+         - servant
+         - souffle-haskell
+         - sydtest
+         - tasty
+         - wai-app-static
+         - warp
+      - SYSTEM:
+         - x86_64-linux
+        PACKAGE:
+         - streamly
 
-flake-ci:
-  stage: check
-  trigger:
-    include:
-      - artifact: flake-ci.yml
-        job: generate-flake-ci
-    strategy: depend
+devour:
+  stage: devour
+  script:
+  - nix build github:srid/devour-flake#packages.$SYSTEM.default -L --no-link --print-out-paths --override-input flake . --keep-going
+  parallel:
+    matrix:
+      - SYSTEM:
+         - aarch64-darwin
+         - x86_64-linux
+
+cachix:
+  stage: cachix
+  rules:
+    - if: $CI_COMMIT_REF_PROTECTED == "true"
+  script:
+    - nix-shell -p cachix --command "nix build github:srid/devour-flake#packages.$SYSTEM.default -L --no-link --print-out-paths --override-input flake . | xargs cat | cachix push horizon"
+  parallel:
+    matrix:
+      - SYSTEM:
+         - aarch64-darwin
+         - x86_64-linux

ChangeLog.md

+# ChangeLog for horion-platform
+
+## unstable-2023-02-20
+
+* Initial unstable tag. Handwritten policy added.

LICENSE

+MIT License
+
+Copyright (c) 2022-2023 Homotopic.Tech Ltd
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

+# Horizon Haskell Platform
+
+[horizon-haskell.net](https://horizon-haskell.net).
+
+horizon-platform is a haskell package set targetting new builds of GHC. This package set extends [horizon-platform](https://gitlab.horizon-haskell.net/package-sets/horizon-platform).
+
+
+The following things are expected to be here:
+* aeson
+* beam-postgres
+* composite-base
+* dhall
+* hedgehog
+* hoauth2-providers
+* log-effectful
+* persistent-postgresql
+* polysemy
+* servant
+* souffle-haskell
+* streamly
+* sydtest
+* tasty
+* wai-app-static
+* warp
+
+## Updating the Package Set
+
+Generating the nix expressions for the package set is a two step process.
+
+1. Edit the `horizon.dhall` file.
+2. Generate the nix expressions with
+
+```
+nix run develop/#horizon-gen-nix -- -jN
+```
+
+You can edit the `horizon.dhall` file in one of two ways: manually using a text
+editor, or programatically using `horizon-shell`.
+
+If you want to bumping everything listed in the `horizon.dhall` file to the latest
+bounds, run
+
+```
+nix run develop/#try-to-upgrade-everything
+```
+
+### Using horizon-shell.
+
+To use `horizon-shell`.
+
+```
+nix run develop/#horizon-shell
+```
+
+This is a haskell interpreter with a few shortcut functions available. Running
+`tryToUpgradeEverything` will poll hackage for any potential updates and add
+them to the dhall file. This will only modify the dhall, not the nix
+expressions. You must remember to run `nix run develop/#horizon-gen-nix`
+afterwards.
+
+To quickly add a new package to the dhall, use the `addHackage` function. For example
+`addHackage "optics"`.
+
+## Tweaking & Hacking
+
+If you need to do additional manual overrides to the nix code, such as
+`addPkgconfigDepends`, edit the `configuration/common.nix` overlay, which is
+applied over the generated derivations.
+
+## Feedback
+
+To build all packages, run
+
+```
+nix run develop/#feedback -- build
+```
+
+## Hoogle
+
+To get a hoogle instance for the entire package set, you can run:
+
+```
+nix run .#apps.x86_64-linux.run-hoogle
+```

configuration/aarch64-darwin.nix

+{ pkgs, haskellLib }:
+
+with pkgs.haskell.lib;
+
+final: prev: {
+
+  alsa-core = null;
+
+  alsa-mixer = null;
+
+  iwlib = null;
+
+  libsystemd-journal = null;
+
+  llvm-hs = null;
+
+  sdl2-mixer = null;
+
+  streamly = null;
+
+}
+

configuration/aarch64-linux.nix

+{ pkgs, haskellLib }:
+
+with haskellLib;
+
+final: prev: {
+
+  dhall-docs = null;
+
+  hfsevents = null;
+  
+  mmark = null;
+
+  stripeapi = null;
+}

configuration/common.nix

+{ pkgs, haskellLib }:
+
+with haskellLib;
+
+final: prev: {
+
+  cheapskate = null;
+
+  hasql-explain-tests = null;
+
+  sandwich = null;
+
+  text-icu = prev.callPackage ../pkgs/text-icu.nix { icu-i18n = pkgs.icu; };
+
+  thyme = null;
+
+  tmp-postgres = null;
+
+  X11-xft = addPkgconfigDepends prev.X11-xft [ pkgs.expat pkgs.xorg.libXau pkgs.xorg.libXdmcp ];
+
+}

configuration/x86_64-darwin.nix

+{ pkgs, haskellLib }:
+
+with pkgs.haskell.lib;
+
+final: prev: {
+
+  alsa-core = null;
+
+  alsa-mixer = null;
+
+  hfsevents = prev.callPackage ../pkgs/hfsevents.nix {
+    Cocoa = pkgs.darwin.apple_sdk.frameworks.Cocoa;
+    CoreServices = pkgs.darwin.apple_sdk.frameworks.CoreServices;
+  };
+
+  iwlib = null;
+
+  libsystemd-journal = null;
+
+  sdl2-mixer = null;
+
+  hinotify = final.hfsevents;
+
+}
+

configuration/x86_64-linux.nix

+{ pkgs, haskellLib }:
+
+with haskellLib;
+
+final: prev: {
+
+  hfsevents = null;
+
+}

develop/flake.nix

+{
+
+  nixConfig = {
+    extra-substituters = "https://horizon.cachix.org";
+    extra-trusted-public-keys = "horizon.cachix.org-1:MeEEDRhRZTgv/FFGCv3479/dmJDfJ82G6kfUDxMSAw0=";
+  };
+
+  inputs = {
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    horizon-develop-flake.url = "git+https://gitlab.horizon-haskell.net/nix/horizon-develop-flake";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  };
+
+  outputs =
+    inputs@
+    { self
+    , flake-parts
+    , nixpkgs
+    , ...
+    }:
+    flake-parts.lib.mkFlake { inherit inputs; }
+      {
+        systems = [
+          "aarch64-darwin"
+          "x86_64-darwin"
+          "x86_64-linux"
+        ];
+        imports = [
+          inputs.horizon-develop-flake.flakeModule
+        ];
+      };
+}

flake.nix

 {
+
+  description = "Horizon Haskell Platform";
+
+  nixConfig = {
+    extra-substituters = "https://horizon.cachix.org";
+    extra-trusted-public-keys = "horizon.cachix.org-1:MeEEDRhRZTgv/FFGCv3479/dmJDfJ82G6kfUDxMSAw0=";
+  };
+
   inputs = {
-    Cabal = {
-      url = "git+https://gitlab.haskell.org/ghc/packages/Cabal";
-      flake = false;
-    };
-    all-cabal-hashes = {
-      url = "github:commercialhaskell/all-cabal-hashes?ref=hackage";
-      flake = false;
-    };
-    cache-effectful = {
-      url = "github:haskell-effectful/cache-effectful";
-      flake = false;
-    };
-    cborg = {
-      url = "github:parsonsmatt/cborg/05ca2063ff631667699bffbeee3a4a076943b905";
-      flake = false;
-    };
-    compactable = {
-      url = "gitlab:fresheyeball/Compactable/master";
-      flake = false;
-    };
-    cryptohash-sha1 = {
-      url = "github:haskell-hvr/cryptohash-sha1";
-      flake = false;
-    };
-    doctest = {
-      url = "github:sol/doctest/4eb97c213acf7abe965a3a1b67397199ed155f3c";
-      flake = false;
-    };
-    double-conversion = {
-      url = "github:haskell/double-conversion";
-      flake = false;
-    };
-    ed25519 = {
-      url = "git+https://gitlab.homotopic.tech/horizon/adopted/ed25519";
-      flake = false;
-    };
-    ema = {
-      url = "github:EmaApps/ema";
-      flake = false;
-    };
     flake-parts.url = "github:hercules-ci/flake-parts";
-    flake-parts.inputs.nixpkgs.follows = "nixpkgs";
-    ghc-exactprint = {
-      url = "github:alanz/ghc-exactprint?ref=ghc-9.4";
-      flake = false;
-    };
-    haskell-src-meta = {
-      url = "github:parsonsmatt/haskell-src-meta?ref=matt/support-new-th";
-      flake = false;
-    };
-    hedgehog-golden = {
-      url = "github:maybe-hedgehog-later/hedgehog-golden";
-      flake = false;
-    };
-    hlint = {
-      url = "github:ndmitchell/hlint";
-      flake = false;
-    };
-    hnix = {
-      url = "github:milloni/hnix?ref=milloni/horizon";
-      flake = false;
-    };
-    lint-utils.url = "git+https://gitlab.homotopic.tech/nix/lint-utils";
-    memory = {
-      url = "github:parsonsmatt/hs-memory/0f760c8ba0b7d5aacf04a7294e87e5e4fff53f40";
-      flake = false;
-    };
+    horizon-advance.url = "git+https://gitlab.horizon-haskell.net/package-sets/horizon-advance?ref=lts/ghc-9.10.x";
+    horizon-hoogle.url = "git+https://gitlab.horizon-haskell.net/nix/horizon-hoogle";
     nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
-    polysemy = {
-      url = "github:locallycompact/polysemy?ref=ghc-942";
-      flake = false;
-    };
-    quickcheck-dynamic = {
-      url = "github:input-output-hk/quickcheck-dynamic";
-      flake = false;
-    };
-    servant = {
-      url = "github:TeofilC/servant?ref=ghc-9.4";
-      flake = false;
-    };
-    sydtest = {
-      url = "github:NorfairKing/sydtest";
-      flake = false;
-    };
-    tasty = {
-      url = "github:UnkindPartition/tasty";
-      flake = false;
-    };
-    tasty-hedgehog = {
-      url = "github:locallycompact/tasty-hedgehog";
-      flake = false;
-    };
-    unicode-data = {
-      url = "github:composewell/unicode-data";
-      flake = false;
-    };
   };
-  outputs = inputs@{ self, nixpkgs, flake-utils, lint-utils, ... }:
-    flake-utils.lib.eachSystem [ "x86_64-linux" ] (system:
-      let
-        overlay-ach = final: prev: { all-cabal-hashes = inputs.all-cabal-hashes; };
-        pkgs = import nixpkgs { inherit system; overlays = [ overlay-ach ]; };
-        overrides-hp = import ./overlay.nix { inherit inputs pkgs; };
-        hp = pkgs.haskell.packages.ghc942.override {
-          overrides = overrides-hp;
-        };
-        hp' = pkgs.lib.filterAttrs
-          (n: v: v != null
-            && builtins.typeOf v == "set"
-            && pkgs.lib.hasAttr "type" v
-            && v.type == "derivation"
-            && v.meta.broken == false)
-          hp;
-      in
-      {
-        checks = {
-          nixpkgs-fmt = lint-utils.outputs.linters.x86_64-linux.nixpkgs-fmt ./.;
+
+  outputs = inputs:
+    inputs.flake-parts.lib.mkFlake { inherit inputs; } {
+      systems = [
+        "aarch64-darwin"
+        "aarch64-linux"
+        "x86_64-darwin"
+        "x86_64-linux"
+      ];
+      imports = [
+        inputs.horizon-hoogle.flakeModule
+      ];
+      perSystem = { pkgs, config, system, ... }:
+        with pkgs.lib;
+        let
+          haskellLib = pkgs.haskell.lib;
+          modifiers = import ./modifiers.nix { inherit pkgs; };
+          overrides = composeManyExtensions [
+            (import ./overlay.nix { inherit pkgs; f = modifiers; })
+            (import ./configuration/common.nix { inherit pkgs haskellLib; })
+            (import (./configuration + "/${system}.nix") { inherit pkgs haskellLib; })
+          ];
+
+          legacyPackages = inputs.horizon-advance.legacyPackages.${system}.extend overrides;
+
+          packages = filterAttrs (_: isDerivation) legacyPackages;
+
+        in
+        {
+
+          inherit legacyPackages;
+
+          inherit packages;
+
         };
-        overrides.ghc942 = overrides-hp;
-        packages = hp';
-      });
+    };
 }

modifiers.nix

+{ pkgs, ... }:
+
+with pkgs.lib;
+
+_: prev: name: v: if hasAttr name prev then warn "${name} exists in parent set" v else v

pkgs/Boolean.nix

+{ mkDerivation, base, lib }:
+mkDerivation {
+  pname = "Boolean";
+  version = "0.2.4";
+  sha256 = "67216013b02b8ac5b534a1ef25f409f930eea1a85eae801933a01ad43145eef8";
+  revision = "1";
+  editedCabalFile = "0q04fgnfgskwsmj3g25vfs39724wh1wjl6m6x08bi9fg9rxcf4rc";
+  isLibrary = true;
+  isExecutable = false;
+  enableSeparateDataOutput = false;
+  libraryHaskellDepends = [ base ];
+  enableLibraryProfiling = true;
+  enableExecutableProfiling = true;
+  doHaddock = true;
+  jailbreak = true;
+  doCheck = false;
+  doBenchmark = false;
+  hyperlinkSource = false;
+  description = "Generalized booleans and numbers";
+  license = lib.licenses.bsd3;
+  broken = false;
+}
\ No newline at end of file