with log(f"Loading {drv}..."):
with subprocess.Popen(
["nix", "--experimental-features", "nix-command",
- "show-derivation", "/nix/store/" + drv],
+ "derivation", "show", f"/nix/store/{drv}^*"],
stdout=subprocess.PIPE) as process:
assert process.stdout
info = json.load(process.stdout)