feat: add attic

Signed-off-by: Anthony Rabbito <arabbito@coreweave.com>

Author: anthr76

flake.nix

@@ -56,6 +56,7 @@
     nixos-facter-modules.url = "github:nix-community/nixos-facter-modules";
     nix-reshade.url = "github:LovingMelody/nix-reshade";
     nix-reshade.inputs.nixpkgs.follows = "nixpkgs";
+    attic.url = "github:zhaofengli/attic";
   };
 
   outputs = {

home-manager/personalities/cli/attic.nix

@@ -0,0 +1,27 @@
+{inputs, pkgs, ...}: {
+  home.packages = [inputs.attic.packages.${pkgs.system}.attic-client];
+  programs.fish.functions = {
+    nix-build-push = {
+      description = "Build a nix package and push its full closure (including build deps) to an attic cache";
+      body = ''
+        if test (count $argv) -lt 2
+          echo "Usage: nix-build-push <package> <cache>"
+          echo "Example: nix-build-push .#cwctl attic-prod:coreweave"
+          return 1
+        end
+        set -l package $argv[1]
+        set -l cache $argv[2]
+
+        echo "Building $package..."
+        nix build -L $package; or return 1
+
+        echo "Pushing build closure to $cache..."
+        set -l drv (nix path-info --derivation $package)
+        nix-store -qR --include-outputs "$drv" \
+          | grep -v '\.drv$' \
+          | while read -l p; test -e "$p" && echo "$p"; end \
+          | xargs attic push $cache
+      '';
+    };
+  };
+}

home-manager/personalities/cli/default.nix

@@ -13,6 +13,7 @@
     ./direnv.nix
     ./nh.nix
     ./crush.nix
+    ./attic.nix
   ];
   home.packages = with pkgs;
     [