test build time with xcp

Author: Mic92

disko-install

@@ -256,7 +256,7 @@ main() {
   if [[ ! -d "${mountPoint}/nix/store" ]]; then
     echo "Copying store paths" >&2
     mkdir -p "${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

@@ -1,6 +1,9 @@
-{ stdenvNoCC, makeWrapper, lib, path, nix, coreutils, nixos-install-tools, binlore, diskoVersion }:
+{ stdenvNoCC, makeWrapper, lib, path, nix, coreutils, nixos-install-tools, binlore, diskoVersion, xcp, callPackage }:
 
 let
+  xcp' = callPackage ./xcp.nix {
+    inherit xcp;
+  };
   self = stdenvNoCC.mkDerivation (finalAttrs: {
     name = "disko";
     src = ./.;
@@ -16,7 +19,7 @@ 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
     '';

xcp.nix

@@ -0,0 +1,27 @@
+{
+  rustPlatform,
+  fetchFromGitHub,
+  lib,
+  xcp,
+}:
+if lib.versionAtLeast xcp.version "0.22.0" then
+  xcp
+else
+  rustPlatform.buildRustPackage rec {
+    pname = "xcp";
+    version = "0.22.0";
+
+    src = fetchFromGitHub {
+      owner = "tarka";
+      repo = pname;
+      rev = "v${version}";
+      hash = "sha256-3Y8/zRdWD6GSkhp1UabGyDrU62h1ZADYd4D1saED1ug=";
+    };
+
+    # no such file or directory errors
+    doCheck = false;
+
+    cargoHash = "sha256-08Yw0HOaV8XKwzrODaBcHato6TfKBeVBa55MWzINAE0=";
+
+    inherit (xcp) meta;
+  }