feat: add overlay and template

flake.nix

@@ -3,17 +3,35 @@
 
   inputs =
     {
-      #ctl.url = "github:Plutonomicon/cardano-transaction-lib";
+      # pinned to match github:LovelaceAcademy/purs-nix
+      ctl.url = "github:LovelaceAcademy/cardano-transaction-lib/790bd5963a5b3e4c231b83288c91f632a2d6101e";
       nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
       #purs-nix.url = "github:purs-nix/purs-nix";
       utils.url = "github:ursi/flake-utils";
-      get-flake.url = "github:ursi/get-flake";
-      package-set-repo.url = "github:purescript/package-sets";
+      # pinned because of CTL
+      package-set-repo.url = "github:purescript/package-sets/dffcbcfe9b35a3a826e4389fade3e2b28fb0c614";
       package-set-repo.flake = false;
+      get-flake.url = "github:ursi/get-flake";
     };
 
-  outputs = { utils, ... }@inputs:
-    utils.apply-systems
+  outputs = { self, utils, ... }@inputs:
+    let
+      overlays = {
+        purs-nix = import ./nix/purs-nix.nix
+          inputs.package-set-repo
+          inputs.ctl;
+      };
+      templates.default.path = ./nix/template;
+      templates.default.description = "la-ctl template";
+    in
+    { inherit templates overlays; } // utils.apply-systems
       { inherit inputs; }
-      ({ pkgs, ... }: { });
+      ({ pkgs, system, ... }:
+        let
+        in
+        {
+          #checks.template = (inputs.get-flake ./nix/template).checks.${system};
+        });
 }
+
+

nix/purs-nix.nix

@@ -0,0 +1,139 @@
+package-set-repo: ctl: final: prev:
+let
+  b = builtins;
+  p = final;
+  l = p.lib;
+  package-set = l.importJSON (package-set-repo + /packages.json);
+  packages = l.pipe package-set [
+    (l.mapAttrsToList (n: v: { inherit n v; }))
+    (b.foldl'
+      (acc: { n, v }: acc // {
+        ${n} = {
+          src.git = { inherit (v) repo rev; };
+          info = {
+            version = b.substring 1 (b.stringLength v.version) v.version;
+            dependencies = b.foldl' (acc': d: acc' + d + " ") "" v.dependencies;
+          };
+        };
+      })
+      { }
+    )
+  ];
+  ctl-packages = with packages; packages // {
+    # TODO: automate the set generation using CTL input
+    # pinned to match github:LovelaceAcademy/purs-nix
+    aeson = {
+      src.git = {
+        repo = "https://github.com/LovelaceAcademy/purescript-aeson.git";
+        rev = "85449440c264d5eedf1acbdf8649fc8eb035e50b";
+      };
+      info = /package.nix;
+    };
+    aeson-helpers = {
+      src.git = {
+        repo = "https://github.com/mlabs-haskell/purescript-bridge-aeson-helpers.git";
+        rev = "44d0dae060cf78babd4534320192b58c16a6f45b";
+      };
+      info = {
+        dependencies = [
+          aff
+          argonaut-codecs
+          argonaut-core
+          arrays
+          bifunctors
+          contravariant
+          control
+          effect
+          either
+          enums
+          foldable-traversable
+          foreign-object
+          maybe
+          newtype
+          ordered-collections
+          prelude
+          profunctor
+          psci-support
+          quickcheck
+          record
+          spec
+          spec-quickcheck
+          transformers
+          tuples
+          typelevel-prelude
+        ];
+      };
+    };
+
+    sequences = {
+      src.git = {
+        repo = "https://github.com/LovelaceAcademy/purescript-sequences";
+        rev = "e37a04e5b88e0cdc2bc92d32aaf281ed61f9fdb0";
+      };
+      info = /package.nix;
+    };
+
+    properties = {
+      src.git = {
+        repo = "https://github.com/LovelaceAcademy/purescript-properties.git";
+        rev = "69c73d0eeeea79f7a73ec18976fda89e404d7760";
+      };
+      info = /package.nix;
+    };
+
+    lattice = {
+      src.git = {
+        repo = "https://github.com/LovelaceAcademy/purescript-lattice.git";
+        rev = "80f7411d1f51d033a3a1b2d2a15bac3e06e81e5c";
+      };
+      info = /package.nix;
+    };
+
+    mote = {
+      src.git = {
+        repo = "https://github.com/garyb/purescript-mote.git";
+        rev = "29aea4ad7b013d50b42629c87b01cf0202451abd";
+      };
+      info = {
+        dependencies = [
+          these
+          transformers
+          arrays
+        ];
+      };
+    };
+
+    medea = {
+      src.git = {
+        repo = "https://github.com/LovelaceAcademy/medea-ps.git";
+        rev = "1c34dbeba9534aaecb874fd17ede8dfe62923a92";
+      };
+      info = /package.nix;
+    };
+
+    toppokki = {
+      src.git = {
+        repo = "https://github.com/firefrorefiddle/purescript-toppokki";
+        ref = "mike/browserpages";
+        rev = "6983e07bf0aa55ab779bcef12df3df339a2b5bd9";
+      };
+      info = {
+        dependencies = [
+          prelude
+          record
+          functions
+          node-http
+          aff-promise
+          node-buffer
+          node-fs-aff
+        ];
+      };
+    };
+
+    bigints.src.flake.url = "github:LovelaceAcademy/purescript-bigints/1e7e8a260b3283307fa887be26300fb29604799a";
+
+    affjax.src.flake.url = "github:LovelaceAcademy/purescript-affjax/c24e75155cf2b243472b6f163a7772290a603ed1";
+
+  };
+in
+{ la-ctl = ctl-packages; }

nix/template/.gitattributes

@@ -0,0 +1 @@
+flake.lock linguist-generated=true

nix/template/.gitignore

@@ -0,0 +1 @@
+/.psc-ide-port