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# SPDX-License-Identifier: LGPL-2.1-or-later
import contextlib
import dataclasses
import os
import subprocess
import sys
import uuid
from collections.abc import Iterator, Mapping, Sequence
from pathlib import Path
from types import TracebackType
from typing import Any, Optional
import pytest
from mkosi.distribution import Distribution
from mkosi.run import CompletedProcess, fork_and_wait, run
from mkosi.sandbox import acquire_privileges
from mkosi.tree import rmtree
from mkosi.user import INVOKING_USER
from mkosi.util import _FILE, PathString
@dataclasses.dataclass(frozen=True)
class ImageConfig:
distribution: Distribution
release: str
debug_shell: bool
class Image:
def __init__(self, config: ImageConfig) -> None:
self.config = config
def __enter__(self) -> "Image":
if (cache := INVOKING_USER.cache_dir() / "mkosi") and os.access(cache, os.W_OK):
tmpdir = cache
else:
tmpdir = Path("/var/tmp")
self.output_dir = Path(os.getenv("TMPDIR", tmpdir)) / uuid.uuid4().hex[:16]
return self
def __exit__(
self,
type: Optional[type[BaseException]],
value: Optional[BaseException],
traceback: Optional[TracebackType],
) -> None:
def clean() -> None:
acquire_privileges()
rmtree(self.output_dir)
fork_and_wait(clean)
def mkosi(
self,
verb: str,
options: Sequence[PathString] = (),
args: Sequence[str] = (),
stdin: _FILE = None,
check: bool = True,
env: Mapping[str, str] = {},
) -> CompletedProcess:
return run(
[
"python3", "-m", "mkosi",
"--debug",
*options,
verb,
*args,
],
check=check,
stdin=stdin,
stdout=sys.stdout,
env=os.environ | env,
) # fmt: skip
def build(
self,
options: Sequence[PathString] = (),
args: Sequence[str] = (),
env: Mapping[str, str] = {},
) -> CompletedProcess:
kcl = [
"loglevel=6",
"systemd.log_level=debug",
"udev.log_level=info",
"systemd.show_status=false",
"systemd.journald.forward_to_console",
"systemd.journald.max_level_console=info",
"systemd.firstboot=no",
"systemd.unit=mkosi-check-and-shutdown.service",
]
opt: list[PathString] = [
"--distribution", str(self.config.distribution),
"--release", self.config.release,
*(f"--kernel-command-line={i}" for i in kcl),
"--force",
"--incremental=strict",
"--output-directory", self.output_dir,
*(["--debug-shell"] if self.config.debug_shell else []),
*options,
] # fmt: skip
self.mkosi("summary", opt, env=env)
return self.mkosi(
"build",
opt,
args,
stdin=sys.stdin if sys.stdin.isatty() else None,
env=env,
)
def boot(self, options: Sequence[str] = (), args: Sequence[str] = ()) -> CompletedProcess:
result = self.mkosi(
"boot",
[
"--runtime-build-sources=no",
"--ephemeral=yes",
"--register=no",
*options,
],
args,
stdin=sys.stdin if sys.stdin.isatty() else None,
check=False,
)
if result.returncode != 123:
raise subprocess.CalledProcessError(result.returncode, result.args, result.stdout, result.stderr)
return result
def vm(self, options: Sequence[str] = (), args: Sequence[str] = ()) -> CompletedProcess:
need_hyperv_workaround = os.uname().machine == "x86_64"
result = self.mkosi(
"vm",
[
"--runtime-build-sources=no",
"--vsock=yes",
# TODO: Drop once both Hyper-V bugs are fixed in Github Actions.
*(["--qemu-args=-cpu max,pcid=off"] if need_hyperv_workaround else []),
"--ram=2G",
"--ephemeral=yes",
"--register=no",
*options,
],
args,
stdin=sys.stdin if sys.stdin.isatty() else None,
check=False,
)
if result.returncode != 123:
raise subprocess.CalledProcessError(result.returncode, result.args, result.stdout, result.stderr)
return result
@pytest.fixture(scope="session", autouse=True)
def suspend_capture_stdin(pytestconfig: Any) -> Iterator[None]:
"""
When --capture=no (or -s) is specified, pytest will still intercept
stdin. Let's explicitly make it not capture stdin when --capture=no is
specified so we can debug image boot failures by logging into the emergency
shell.
"""
capmanager: Any = pytestconfig.pluginmanager.getplugin("capturemanager")
if pytestconfig.getoption("capture") == "no":
capmanager.suspend_global_capture(in_=True)
yield
if pytestconfig.getoption("capture") == "no":
capmanager.resume_global_capture()
@contextlib.contextmanager
def ci_group(s: str) -> Iterator[None]:
github_actions = os.getenv("GITHUB_ACTIONS")
if github_actions:
print(f"\n::group::{s}", flush=True)
try:
yield
finally:
if github_actions:
print("\n::endgroup::", flush=True)
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