vms/create: use tmpdir again

pkgs/clan-cli/clan_cli/vms/create.py

@@ -5,6 +5,7 @@ import os
 import re
 import shlex
 import sys
+import tempfile
 from pathlib import Path
 from typing import Iterator
 from uuid import UUID
@@ -76,11 +77,13 @@ class BuildVmTask(BaseTask):
         validate_path(clan_flakes_dir(), flake_dir)
         flake_dir.mkdir(exist_ok=True)
 
-        xchg_dir = flake_dir / "xchg"
+        with tempfile.TemporaryDirectory() as tmpdir_:
+            tmpdir = Path(tmpdir_)
+            xchg_dir = tmpdir / "xchg"
             xchg_dir.mkdir(exist_ok=True)
-        secrets_dir = flake_dir / "secrets"
+            secrets_dir = tmpdir / "secrets"
             secrets_dir.mkdir(exist_ok=True)
-        disk_img = f"{flake_dir}/disk.img"
+            disk_img = tmpdir / "disk.img"
 
             env = os.environ.copy()
             env["CLAN_DIR"] = str(self.vm.flake_url)
@@ -120,7 +123,7 @@ class BuildVmTask(BaseTask):
                         "create",
                         "-f",
                         "raw",
-                    disk_img,
+                        str(disk_img),
                         "1024M",
                     ],
                 )
@@ -134,7 +137,7 @@ class BuildVmTask(BaseTask):
                         "mkfs.ext4",
                         "-L",
                         "nixos",
-                    disk_img,
+                        str(disk_img),
                     ],
                 )
             )