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Copy pathgenerator.py
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188 lines (158 loc) · 4.84 KB
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from __future__ import annotations
import argparse
import dataclasses
import enum
import os
import pathlib
from typing import NoReturn
import jinja2
PARENT_DIR = os.path.dirname(__file__)
class QueryLogMode(enum.Enum):
FULL = 1
NAME_ONLY = 2
@staticmethod
def parse(arg: str) -> QueryLogMode:
if arg == 'full':
return QueryLogMode.FULL
elif arg == 'name-only':
return QueryLogMode.NAME_ONLY
else:
raise Exception(f'Unknown query log mode: {arg}')
def parse_args():
parser = argparse.ArgumentParser()
parser.add_argument(
'--namespace',
type=str,
required=True,
help='C++ namespace to use',
)
parser.add_argument(
'--source-dir',
type=str,
required=True,
help='path to the directory with .sql files',
)
parser.add_argument(
'--output-dir',
type=str,
required=True,
help='path to the directory with .hpp-.cpp files to generate',
)
parser.add_argument(
'--query-log-mode',
type=QueryLogMode.parse,
choices=[QueryLogMode.FULL, QueryLogMode.NAME_ONLY],
required=True,
help='whether to log query text, "full" for "do log", "name-only" for "do not log"',
)
parser.add_argument(
'--testsuite-output-dir',
type=str,
required=True,
help='full path to generated tests',
)
parser.add_argument('files', nargs='*', help='input .sql files to process (relative to the cwd, not source-dir)')
return parser.parse_args()
@dataclasses.dataclass
class SqlQuery:
source: str
variable: str
contents: str
name: str
@dataclasses.dataclass
class SqlParams:
namespace: str
query_log_mode: QueryLogMode
src_root: str
testsuite_output_dir: str = ''
def camel_case(string: str) -> str:
result = ''
set_upper = True
for char in string:
if char in {'_', '-', '.'}:
set_upper = True
else:
if set_upper:
char = char.upper()
else:
char = char.lower()
result += char
set_upper = False
return result
def read_items(args) -> list[SqlQuery]:
items: list[SqlQuery] = []
for filename in args.files:
with open(filename, 'r') as file:
content = file.read()
name = pathlib.Path(filename).stem # TODO: CamelCase
items.append(
SqlQuery(
source=os.path.relpath(filename, args.source_dir),
contents=content,
name=name,
variable=('k' + camel_case(name)),
),
)
return items
def raise_error(*args) -> NoReturn:
raise Exception(''.join(map(str, args)))
def render(
params: SqlParams,
sql_items: list[SqlQuery],
yql_items: list[SqlQuery],
env: jinja2.Environment | None = None,
) -> None:
os.makedirs(
pathlib.Path(f'{params.src_root}/include/{params.namespace}'),
exist_ok=True,
)
os.makedirs(
pathlib.Path(f'{params.src_root}/src/{params.namespace}'),
exist_ok=True,
)
if params.testsuite_output_dir:
os.makedirs(
pathlib.Path(params.testsuite_output_dir),
exist_ok=True,
)
if not env:
loader = jinja2.FileSystemLoader(PARENT_DIR)
env = jinja2.Environment(loader=loader)
env.globals['raise_error'] = raise_error
env.globals['QueryLogMode'] = QueryLogMode
context = {
'sql_service_files': sql_items,
'yql_service_files': yql_items,
'namespace': params.namespace,
'query_log_mode': params.query_log_mode,
}
with open(f'{params.src_root}/include/{params.namespace}/sql_queries.hpp', 'w') as hpp_file:
tpl = env.get_template('templates/sql.hpp.jinja')
content = tpl.render(**context)
hpp_file.write(content)
with open(f'{params.src_root}/src/{params.namespace}/sql_queries.cpp', 'w') as cpp_file:
tpl = env.get_template('templates/sql.cpp.jinja')
content = tpl.render(**context)
cpp_file.write(content)
if params.testsuite_output_dir:
with open(f'{params.testsuite_output_dir}/sql_files.py', 'w') as py_file:
tpl = env.get_template('templates/sql_files.py.jinja')
content = tpl.render(**context)
py_file.write(content)
def main(loader: jinja2.BaseLoader | None = None):
args = parse_args()
items = read_items(args)
env = jinja2.Environment(loader=loader) if loader else None
render(
SqlParams(
namespace=args.namespace,
src_root=args.output_dir,
query_log_mode=args.query_log_mode,
testsuite_output_dir=args.testsuite_output_dir,
),
items,
[],
env=env,
)
if __name__ == '__main__':
main()