Test push-to-cache script

.forgejo/workflows/build.yaml

@@ -16,6 +16,8 @@ jobs:
           chmod 600 ~/.ssh/id_ed25519
           ssh-keyscan github.com >> ~/.ssh/known_hosts
       - name: Build with nix (x86_64-linux)
-        run: nix-fast-build --no-nom --systems "x86_64-linux aarch64-linux" --attic-cache "nixfleet" --skip-cached --result-file result.json || true
+        run: nix-fast-build --no-nom --systems "x86_64-linux aarch64-linux" --skip-cached --result-file result.json || true
+      - name: Push to cache
+        run: nix run .#push-to-cache -- nixfleet
       - name: Report checks
         run: report-checks

checks/default.nix

@@ -11,7 +11,7 @@
   ];
 
   perSystem =
-    { config, ... }:
+    { config, pkgs, ... }:
     {
       treefmt.config = {
         projectRootFile = ".git/config";
@@ -42,6 +42,17 @@
           package = config.treefmt.build.wrapper;
         };
       };
+      packages.push-to-cache =
+        let
+          checks = with self.checks; x86_64-linux // aarch64-linux;
+        in
+        pkgs.writeShellScriptBin "push-to-cache.sh" ''
+          attic push $1 --stdin --jobs 4 << EOF
+          ${lib.concatStringsSep "\n" (
+            builtins.map (builtins.unsafeDiscardStringContext) (builtins.attrValues checks)
+          )}
+          EOF
+        '';
     };
 
   flake.checks =