def run(command_name: str, parsed_args: "argparse.Namespace") -> None:
"""Run the parts lifecycle.
:raises SnapcraftError: if the step name is invalid, or the project
yaml file cannot be loaded.
:raises LegacyFallback: if the project's base is not core22.
"""
emit.debug(f"command: {command_name}, arguments: {parsed_args}")
snap_project = get_snap_project()
yaml_data = process_yaml(snap_project.project_file)
start_time = datetime.now()
build_plan = get_build_plan(yaml_data, parsed_args)
if parsed_args.provider:
raise errors.SnapcraftError("Option --provider is not supported.")
# Register our own plugins and callbacks
plugins.register()
callbacks.register_prologue(_set_global_environment)
callbacks.register_pre_step(_set_step_environment)
build_count = utils.get_parallel_build_count()
for build_on, build_for in build_plan:
emit.verbose(f"Running on {build_on} for {build_for}")
yaml_data_for_arch = apply_yaml(yaml_data, build_on, build_for)
parse_info = _extract_parse_info(yaml_data_for_arch)
_expand_environment(
yaml_data_for_arch,
parallel_build_count=build_count,
target_arch=build_for,
)
project = Project.unmarshal(yaml_data_for_arch)
try:
_run_command(
command_name,
project=project,
parse_info=parse_info,
parallel_build_count=build_count,
assets_dir=snap_project.assets_dir,
start_time=start_time,
parsed_args=parsed_args,
)
except PermissionError as err:
raise errors.FilePermissionError(err.filename, reason=err.strerror)
def test_get_parallel_build_count_limited(mocker, max_count, count):
mocker.patch("os.sched_getaffinity", return_value=[1] * 13)
mocker.patch.dict(os.environ, {"SNAPCRAFT_MAX_PARALLEL_BUILD_COUNT": max_count})
assert utils.get_parallel_build_count() == count
def test_get_parallel_build_count_disable(mocker):
mocker.patch("os.sched_getaffinity", side_effect=AttributeError)
mocker.patch("multiprocessing.cpu_count", side_effect=NotImplementedError)
assert utils.get_parallel_build_count() == 1
def test_get_parallel_build_count_no_affinity(mocker):
mocker.patch("os.sched_getaffinity", side_effect=AttributeError)
mocker.patch("multiprocessing.cpu_count", return_value=17)
assert utils.get_parallel_build_count() == 17
def test_get_parallel_build_count(mocker):
mocker.patch("os.sched_getaffinity", return_value=[1] * 13)
assert utils.get_parallel_build_count() == 13