disko-install: switch to xcp

Author: Mic92

disko-install

@@ -256,7 +256,7 @@ main() {
   if [[ ! -f "${mountPoint}/nix/var/nix/db/db.sqlite" ]]; then
     echo "Copying store paths" >&2
     mkdir -p "${mountPoint}/nix/store"
-    xargs cp --recursive --target "${mountPoint}/nix/store"  < "${closure_info}/store-paths"
+    xargs xcp --recursive --target-directory "${mountPoint}/nix/store"  < "${closure_info}/store-paths"
     echo "Loading nix database" >&2
     NIX_STATE_DIR=${mountPoint}/nix/var/nix nix-store --load-db < "${closure_info}/registration"
   fi

package.nix

@@ -1,4 +1,4 @@
-{ stdenvNoCC, makeWrapper, lib, path, nix, coreutils, nixos-install-tools, binlore, diskoVersion }:
+{ stdenvNoCC, makeWrapper, lib, path, nix, coreutils, nixos-install-tools, binlore, diskoVersion, xcp }:
 
 let
   self = stdenvNoCC.mkDerivation (finalAttrs: {
@@ -16,7 +16,7 @@ let
         chmod 755 "$out/bin/$i"
         wrapProgram "$out/bin/$i" \
           --set DISKO_VERSION "${diskoVersion}" \
-          --prefix PATH : ${lib.makeBinPath [ nix coreutils nixos-install-tools ]} \
+          --prefix PATH : ${lib.makeBinPath [ nix coreutils nixos-install-tools xcp ]} \
           --prefix NIX_PATH : "nixpkgs=${path}"
       done
     '';