Push packages to attic

ci/default.nix

@@ -1,12 +1,40 @@
-{inputs, ...}: {
+{
+  config,
+  inputs,
+  lib,
+  ...
+}: {
   imports = [
     inputs.hercules-ci-effects.flakeModule
+    "${inputs.hercules-ci-effects}/effects/push-cache/default.nix"
   ];
   config = {
     hercules-ci.github-pages.branch = "master";
     perSystem = {config, ...}: {
       hercules-ci.github-pages.settings.contents = config.packages.docs;
     };
     herculesCI.ciSystems = ["x86_64-linux" "x86_64-darwin"];
+
+    push-cache-effect = {
+      enable = true;
+      attic-client-pkg = inputs.attic.packages.x86_64-linux.attic-client;
+      caches = {
+        mlabs-cardano-nix = {
+          type = "attic";
+          secretName = "cardano-nix-cache-push-token";
+          packages = with lib;
+            flatten [
+              (forEach ["apps" "devShells" "packages"]
+                (attr:
+                  forEach ["x86_64-linux" "x86_64-darwin" "aarch64-linux"]
+                  (system:
+                    collect isDerivation config.flake.${attr}.${system})))
+              (forEach (attrValues config.flake.nixosConfigurations)
+                (os:
+                  os.config.system.build.toplevel))
+            ];
+        };
+      };
+    };
   };
 }

flake.nix

@@ -3,8 +3,8 @@
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
     flake-parts.url = "github:hercules-ci/flake-parts";
 
-    # we use effects for CI and documentation
-    hercules-ci-effects.url = "github:hercules-ci/hercules-ci-effects";
+    # we use effects for CI, documentation and pushing to public cache
+    hercules-ci-effects.url = "github:mlabs-haskell/hercules-ci-effects/push-cache-effect";
 
     # Utilities
     devshell = {
@@ -20,6 +20,10 @@
       url = "github:srid/devour-flake";
       flake = false;
     };
+    attic = {
+      url = "github:zhaofengli/attic";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
   outputs = inputs @ {flake-parts, ...}:
     flake-parts.lib.mkFlake {