develop flake

README.md

@@ -27,34 +27,46 @@ This package set has the following policy.
   * wai-app-static
   * warp
 
-## Updating the package set
+## Updating the Package Set
 
-The package set is generated from the `horizon.dhall`. You can edit this in one
-of two ways: manually using a text edit, or programatically using
-`horizon-shell`.
+Generating the nix expressions for the package set is a two step process.
 
-### Manual
+1. Edit the `horizon.dhall` file.
+2. Generate the nix expressions with `nix run develop/#horizon-gen-nix`.
 
-Edit the `horizon.dhall` file and add or change some package data.
+You can edit the `horizon.dhall` file in one of two ways: manually using a text
+editor, or programatically using `horizon-shell`.
 
-Run `horizon-gen-nix` from the remote repository.
-
-```
-nix run 'git+https://gitlab.horizon-haskell.net/haskell/horizon-gen-nix?ref=refs/tags/0.10.0'
-```
-
-### Programatic
+### Using horizon-shell.
 
 To use `horizon-shell`.
 
 ```
-nix develop
+nix run develop/#horizon-shell
 ```
 
-See the in-shell help for usage.
+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
+## 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 last.
+applied over the generated derivations.
+
+If you need to nullify libraries, use the `configuration/hacking.nix` overlay.
+Try to leave a note as to why this library has been nullified.
+
+## Feedback
+
+To build all packages, run
+
+```
+nix run develop/#feedback -- build
+```

develop/flake.nix

+{
+
+  nixConfig = {
+    extra-substituters = "https://horizon.cachix.org";
+    extra-trusted-public-keys = "horizon.cachix.org-1:MeEEDRhRZTgv/FFGCv3479/dmJDfJ82G6kfUDxMSAw0=";
+  };
+
+  inputs = {
+    feedback.url = "github:NorfairKing/feedback";
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    flake-to-gitlab-ci.url = "git+https://gitlab.nixica.dev/haskell/flake-to-gitlab-ci?ref=refs/tags/0.2.4.2";
+    horizon-gen-nix.url = "git+https://gitlab.horizon-haskell.net/haskell/horizon-gen-nix?ref=refs/tags/0.11.0";
+    horizon-shell.url = "git+https://gitlab.horizon-haskell.net/shells/horizon-shell?ref=refs/tags/0.0.9";
+    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"
+        ];
+        perSystem = { system, pkgs, ... }:
+          let
+            cachix-push-horizon-ghc-only = pkgs.writers.writeBashBin "cachix-push-horizon-ghc-only" ''
+              nix build -L --json .#packages.x86_64-linux.ghc | ${pkgs.jq}/bin/jq -r '.[].outputs | to_entries[].value' | ${pkgs.cachix}/bin/cachix push horizon
+            '';
+
+            cachix-push-horizon-devour = pkgs.writers.writeBashBin "cachix-push-horizon-devour" ''
+              nix build github:srid/devour-flake -L --no-link --print-out-paths --override-input flake . | xargs cat | ${pkgs.cachix}/bin/cachix push horizon
+            '';
+
+            devour-flake = pkgs.writers.writeBashBin "devour-flake" ''
+              nix build github:srid/devour-flake -L --no-link --print-out-paths --override-input flake . --keep-going
+            '';
+
+            test-template = pkgs.writers.writeBashBin "test-template" ''
+              mkdir temp
+              cd temp
+              nix flake init -t 'git+https://gitlab.horizon-haskell.net/templates/horizon-templates#minimal'
+              git init .
+              git add *
+              nix build github:srid/devour-flake -L --no-link --print-out-paths --override-input flake . --override-input flake/horizon-platform ../ --keep-going
+              cd ..
+              rm temp -rf
+            '';
+
+            run-horizon-gen-nix = pkgs.writers.writeBashBin "run-horizon-gen-nix" ''
+              ${pkgs.cabal-install}/bin/cabal update
+              ${inputs.horizon-gen-nix.packages.${system}.default}/bin/horizon-gen-nix $@;
+            '';
+
+          in
+          {
+
+            apps = {
+              cachix-push-horizon-devour = {
+                type = "app";
+                program = "${cachix-push-horizon-devour}/bin/cachix-push-horizon-devour";
+              };
+              cachix-push-horizon-ghc-only = {
+                type = "app";
+                program = "${cachix-push-horizon-ghc-only}/bin/cachix-push-horizon-ghc-only";
+              };
+              devour-flake = {
+                type = "app";
+                program = "${devour-flake}/bin/devour-flake";
+              };
+              feedback = {
+                type = "app";
+                program = "${inputs.feedback.packages.${system}.default}/bin/feedback";
+              };
+              flake-to-gitlab-ci = inputs.flake-to-gitlab-ci.apps.${system}.default;
+              horizon-gen-nix = inputs.horizon-gen-nix.apps.${system}.default;
+              horizon-shell = inputs.horizon-shell.apps.${system}.default;
+              run-horizon-gen-nix = {
+                program = "${run-horizon-gen-nix}/bin/run-horizon-gen-nix";
+                type = "app";
+              };
+              test-template = {
+                type = "app";
+                program = "${test-template}/bin/test-template";
+              };
+            };
+
+          };
+      };
+}