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clan-cli: test_flake_caching: add actual flake caching test

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This commit is contained in:
lassulus
2025-02-05 07:28:39 +01:00
committed by clan-bot
parent 02929e9d42
commit 51d65873a7
2 changed files with 36 additions and 10 deletions
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22
pkgs/clan-cli/clan_cli/flake.py
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@@ -7,7 +7,7 @@ from typing import Any
from clan_cli.cmd import run
from clan_cli.errors import ClanError
from clan_cli.nix import nix_build, nix_config
from clan_cli.nix import nix_build, nix_command, nix_config, nix_test_store
log = logging.getLogger(__name__)
@@ -278,7 +278,19 @@ class Flake:
cache: FlakeCache = field(default_factory=FlakeCache)
def __post_init__(self) -> None:
flake_prefetch = run(["nix", "flake", "prefetch", "--json", self.identifier])
flake_prefetch = run(
nix_command(
[
"flake",
"prefetch",
"--json",
"--option",
"flake-registry",
"",
self.identifier,
]
)
)
flake_metadata = json.loads(flake_prefetch.stdout)
self.store_path = flake_metadata["storePath"]
self.hash = flake_metadata["hash"]
@@ -292,8 +304,10 @@ class Flake:
in
flake.inputs.nixpkgs.legacyPackages.{config["system"]}.writeText "clan-flake-select" (builtins.toJSON [ ({" ".join([f'flake.clanInternals.lib.select "{attr}" flake' for attr in selectors])}) ])
"""
build_output = run(nix_build(["--expr", nix_code])).stdout.strip()
outputs = json.loads(Path(build_output).read_text())
build_output = Path(run(nix_build(["--expr", nix_code])).stdout.strip())
if tmp_store := nix_test_store():
build_output = tmp_store.joinpath(*build_output.parts[1:])
outputs = json.loads(build_output.read_text())
if len(outputs) != len(selectors):
msg = f"flake_prepare_cache: Expected {len(outputs)} outputs, got {len(outputs)}"
raise ClanError(msg)

24
pkgs/clan-cli/tests/test_flake_caching.py
View File

@@ -1,15 +1,27 @@
from clan_cli.flake import FlakeCacheEntry
import pytest
from clan_cli.flake import Flake, FlakeCacheEntry
from fixtures_flakes import ClanFlake
def test_flake_caching(test_flake: ClanFlake) -> None:
@pytest.mark.with_core
def test_flake_caching(flake: ClanFlake) -> None:
testdict = {"x": {"y": [123, 345, 456], "z": "bla"}}
test_cache = FlakeCacheEntry(testdict, [])
assert test_cache["x"]["z"].value == "bla"
assert test_cache.is_cached(["x", "z"])
assert test_cache.select(["x", "y", 0]) == 123
assert not test_cache.is_cached(["x", "z", 1])
# TODO check this, but test_flake is not a real clan flake (no clan-core, no clanInternals)
# cmd.run(["nix", "flake", "lock"], cmd.RunOpts(cwd=test_flake.path))
# flake = Flake(str(test_flake.path))
# hostnames = flake.select("nixosConfigurations.*.config.networking.hostName")
m1 = flake.machines["machine1"]
m1["nixpkgs"]["hostPlatform"] = "x86_64-linux"
flake.machines["machine2"] = m1.copy()
flake.machines["machine3"] = m1.copy()
flake.refresh()
flake_ = Flake(str(flake.path))
hostnames = flake_.select("nixosConfigurations.*.config.networking.hostName")
assert hostnames == {
"machine1": "machine1",
"machine2": "machine2",
"machine3": "machine3",
}