def load_component(gdspath: PosixPath) -> Component:
"""Returns Component from gdspath, with ports (CSV) and metadata (JSON) info (if any)"""
if not gdspath.exists():
raise FileNotFoundError(f"No such file '{gdspath}'")
ports_filepath = gdspath.with_suffix(".ports")
metadata_filepath = gdspath.with_suffix(".json")
c = pp.import_gds(gdspath)
if ports_filepath.exists():
with open(str(ports_filepath), newline="") as csvfile:
reader = csv.reader(csvfile, delimiter=",", quotechar="|")
for r in reader:
layer_type = int(r[5].strip().strip("("))
data_type = int(r[6].strip().strip(")"))
c.add_port(
name=r[0],
midpoint=[float(r[1]), float(r[2])],
orientation=int(r[3]),
width=float(r[4]),
layer=(layer_type, data_type),
)
if metadata_filepath.exists():
with open(metadata_filepath) as f:
data = json.load(f)
cell_settings = data["cells"][c.name]
c.settings.update(cell_settings)
return c
def merge_metadata(gdspath: PosixPath,
labels_prefix: str = "opt",
label_layer: Tuple[int, int] = pp.LAYER.LABEL,
**kwargs):
"""Merges all JSON metadata into a big JSON.
Args:
gdspath: GDSpath
labels_prefix
label_layer: layer for the labels
"""
mdpath = gdspath.with_suffix(".md")
jsonpath = gdspath.with_suffix(".json")
build_directory = gdspath.parent.parent
doe_directory = build_directory / "doe"
write_labels(gdspath=gdspath,
prefix=labels_prefix,
label_layer=label_layer)
merge_json(doe_directory=doe_directory, jsonpath=jsonpath, **kwargs)
merge_markdown(reports_directory=doe_directory, mdpath=mdpath)
merge_test_metadata(gdspath, labels_prefix=labels_prefix)
def lock(path: pathlib.PosixPath):
"""Creates a lock file,
a file protected from beeing used by other processes.
(The lock file isn't the same as the file of the passed path.)
Args:
path (pathlib.PosixPath): path to the file
"""
path = path.with_suffix('.lock')
if not path.exists():
path.touch()
with path.open("r+") as lock_file:
try:
fcntl.lockf(lock_file.fileno(), fcntl.LOCK_EX)
yield lock_file
finally:
fcntl.lockf(lock_file.fileno(), fcntl.LOCK_UN)
