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import argparse
import os
from yaml import dump, Dumper
from torch._export.serde import schema_check
if __name__ == "__main__":
parser = argparse.ArgumentParser(prog="update_schema")
parser.add_argument(
"--prefix", type=str, required=True, help="The root of pytorch directory."
)
parser.add_argument(
"--dry-run",
action="store_true",
help="Print the schema instead of writing it to file.",
)
parser.add_argument(
"--force-unsafe",
action="store_true",
help="!!! Only use this option when you are a chad. !!! Force to write the schema even if schema validation doesn't pass.",
)
args = parser.parse_args()
assert os.path.exists(args.prefix), (
f"Assuming path {args.prefix} is the root of pytorch directory, but it doesn't exist."
)
commit = schema_check.update_schema()
if os.path.exists(args.prefix + commit.yaml_path):
if commit.result["SCHEMA_VERSION"] < commit.base["SCHEMA_VERSION"]:
raise RuntimeError(
f"Schema version downgraded from {commit.base['SCHEMA_VERSION']} to {commit.result['SCHEMA_VERSION']}."
)
if commit.result["TREESPEC_VERSION"] < commit.base["TREESPEC_VERSION"]:
raise RuntimeError(
f"Treespec version downgraded from {commit.base['TREESPEC_VERSION']} to {commit.result['TREESPEC_VERSION']}."
)
else:
assert args.force_unsafe, (
"Existing schema yaml file not found, please use --force-unsafe to try again."
)
next_version, reason = schema_check.check(commit, args.force_unsafe)
if next_version is not None and next_version != commit.result["SCHEMA_VERSION"]:
raise RuntimeError(
f"Schema version is not updated from {commit.base['SCHEMA_VERSION']} to {next_version}.\n"
+ "Please either:\n"
+ " 1. update schema.py to not break compatibility.\n"
+ " or 2. bump the schema version to the expected value.\n"
+ " or 3. use --force-unsafe to override schema.yaml (not recommended).\n "
+ "and try again.\n"
+ f"Reason: {reason}"
)
first_line = (
"@" + "generated by " + os.path.basename(__file__).rsplit(".", 1)[0] + ".py"
)
checksum = f"checksum<<{commit.checksum_next}>>"
yaml_header = "# " + first_line
yaml_header += "\n# " + checksum
yaml_payload = dump(commit.result, Dumper=Dumper, sort_keys=False)
cpp_header = "// " + first_line
cpp_header += "\n// " + checksum
cpp_header += "\n// clang-format off"
cpp_header += "\n" + commit.cpp_header
cpp_header += "\n// clang-format on"
cpp_header += "\n"
yaml_content = yaml_header + "\n" + yaml_payload
thrift_schema = "// " + first_line
thrift_schema += f"\n// checksum<<{commit.thrift_checksum_next}>>"
thrift_schema += "\n" + commit.thrift_schema
if args.dry_run:
print(yaml_content)
print("\nWill write the above schema to" + args.prefix + commit.yaml_path)
else:
with open(os.path.join(args.prefix, commit.yaml_path), "w") as f:
f.write(yaml_content)
with open(os.path.join(args.prefix, commit.cpp_header_path), "w") as f:
f.write(cpp_header)
with open(os.path.join(args.prefix, commit.thrift_schema_path), "w") as f:
f.write(thrift_schema)
|
