1 files changed, 49 insertions, 0 deletions
diff --git a/pkgs/build-support/vm/windows/default.nix b/pkgs/build-support/vm/windows/default.nix
new file mode 100644
index 000000000000..f9f1d75c70d6
--- /dev/null
+++ b/pkgs/build-support/vm/windows/default.nix
@@ -0,0 +1,49 @@
+pkgs:
+
+let
+  bootstrapper = import ./bootstrap.nix {
+    inherit (pkgs) stdenv vmTools writeScript writeText runCommand makeInitrd;
+    inherit (pkgs) coreutils dosfstools gzip mtools netcat openssh qemu samba;
+    inherit (pkgs) socat vde2 fetchurl python perl cdrkit pathsFromGraph;
+    inherit (pkgs) gnugrep;
+  };
+
+  builder = ''
+    source /tmp/xchg/saved-env 2> /dev/null || true
+    export NIX_STORE=/nix/store
+    export NIX_BUILD_TOP=/tmp
+    export TMPDIR=/tmp
+    export PATH=/empty
+    cd "$NIX_BUILD_TOP"
+    exec $origBuilder $origArgs
+  '';
+
+in {
+  runInWindowsVM = drv: let
+    newDrv = drv.override {
+      stdenv = drv.stdenv.override {
+        shell = "/bin/sh";
+      };
+    };
+  in pkgs.lib.overrideDerivation drv (attrs: let
+    bootstrap = bootstrapper attrs.windowsImage;
+  in {
+    requiredSystemFeatures = [ "kvm" ];
+    builder = "${pkgs.stdenv.shell}";
+    args = ["-e" (bootstrap.resumeAndRun builder)];
+    windowsImage = bootstrap.suspendedVM;
+    origArgs = attrs.args;
+    origBuilder = if attrs.builder == attrs.stdenv.shell
+                  then "/bin/sh"
+                  else attrs.builder;
+
+    postHook = ''
+      PATH=/usr/bin:/bin:/usr/sbin:/sbin
+      SHELL=/bin/sh
+      eval "$origPostHook"
+    '';
+
+    origPostHook = attrs.postHook or "";
+    fixupPhase = ":";
+  });
+}