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mkBinaryCache: fix nixos/tests/binary-cache.nix

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This commit is contained in:
thomasjm 2025-01-03 15:50:48 -08:00
parent 16dab34ee2
commit 6b261ea59d
1 changed files with 26 additions and 8 deletions
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34
nixos/tests/binary-cache.nix
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@ -9,18 +9,37 @@ import ./make-test-python.nix (
{ pkgs, ... }:
{
imports = [ ../modules/installer/cd-dvd/channel.nix ];
environment.systemPackages = [ pkgs.python3 ];
system.extraDependencies = [ pkgs.hello.inputDerivation ];
environment.systemPackages = with pkgs; [
openssl
python3
];
# We encrypt the binary cache before putting it on the machine so Nix
# doesn't bring any references along.
environment.etc."binary-cache.tar.gz.encrypted".source =
with pkgs;
runCommand "binary-cache.tar.gz.encrypted"
{
allowReferences = [ ];
nativeBuildInputs = [ openssl ];
}
''
tar -czf tmp.tar.gz -C "${mkBinaryCache { rootPaths = [ hello ]; }}" .
openssl enc -aes-256-cbc -salt -in tmp.tar.gz -out $out -k mysecretpassword
'';
nix.extraOptions = ''
experimental-features = nix-command
'';
};
testScript = ''
# Build the cache, then remove it from the store
cachePath = machine.succeed("nix-build --no-out-link -E 'with import <nixpkgs> {}; mkBinaryCache { rootPaths = [hello]; }'").strip()
machine.succeed("cp -r %s/. /tmp/cache" % cachePath)
machine.succeed("nix-store --delete " + cachePath)
# Decrypt the cache into /tmp/binary-cache.tar.gz
machine.succeed("openssl enc -d -aes-256-cbc -in /etc/binary-cache.tar.gz.encrypted -out /tmp/binary-cache.tar.gz -k mysecretpassword")
# Untar the cache into /tmp/cache
machine.succeed("mkdir /tmp/cache")
machine.succeed("tar -C /tmp/cache -xf /tmp/binary-cache.tar.gz")
# Sanity test of cache structure
status, stdout = machine.execute("ls /tmp/cache")
@ -42,8 +61,7 @@ import ./make-test-python.nix (
if not match: raise Exception("Couldn't find hello store path in cache")
storePath = match[1]
# Delete the store path
machine.succeed("nix-store --delete " + storePath)
# Make sure the store path doesn't exist yet
machine.succeed("[ ! -d %s ] || exit 1" % storePath)
# Should be able to build hello using the cache