Files
backend/scripts/swagger-drogon/swagger_drogon/parser.py
T

76 lines
2.3 KiB
Python

from __future__ import annotations
import re
from pathlib import Path
from .models import Route
ROUTE_RE = re.compile(
r"ADD_METHOD_TO\(\s*([A-Za-z_]\w*)::([A-Za-z_]\w*)\s*,\s*"
r'"([^"]+)"\s*,\s*drogon::([A-Za-z]+)\s*\)',
re.MULTILINE | re.DOTALL,
)
REQUIRED_METADATA = {"tags", "summary", "description", "auth", "body", "response"}
def parse_metadata(header: Path, text: str, route_start: int) -> dict[str, str]:
prefix = text[:route_start].rstrip()
if not prefix.endswith("*/"):
raise ValueError(f"{header}: route is missing an openapi metadata block")
comment_start = prefix.rfind("/*")
if comment_start == -1:
raise ValueError(f"{header}: route is missing an openapi metadata block")
block = prefix[comment_start + 2:-2]
metadata: dict[str, str] = {}
in_openapi_block = False
for raw_line in block.splitlines():
line = raw_line.strip()
if line.startswith("*"):
line = line[1:].strip()
if not line:
continue
if line == "openapi:":
in_openapi_block = True
continue
if not in_openapi_block:
continue
match = re.match(r"([A-Za-z_]+):\s*(.+)", line)
if match:
metadata[match.group(1)] = match.group(2).strip()
missing = sorted(REQUIRED_METADATA - metadata.keys())
if missing:
names = ", ".join(missing)
raise ValueError(f"{header}: openapi metadata block is missing: {names}")
return metadata
def parse_routes(controllers_dir: Path) -> list[Route]:
routes: list[Route] = []
for header in sorted(controllers_dir.glob("*.h")):
text = header.read_text(encoding="utf-8")
for match in ROUTE_RE.finditer(text):
controller, handler, raw_path, drogon_method = match.groups()
routes.append(
Route(
controller=controller,
handler=handler,
raw_path=raw_path,
http_method=drogon_method.lower(),
metadata=parse_metadata(header, text, match.start()),
header=header,
)
)
return routes
def parse_tags(value: str) -> list[str]:
return [tag.strip() for tag in value.split(",") if tag.strip()]