52a474180a
This is a minor re-work of the entrypoint script. It isolates a generate() method from the actual command-line mechanism. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Cleber Rosa <crosa@redhat.com> Tested-by: Cleber Rosa <crosa@redhat.com> Message-Id: <20201009161558.107041-4-jsnow@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [invalid_char() renamed to invalid_prefix_char()] Signed-off-by: Markus Armbruster <armbru@redhat.com>
102 lines
3.2 KiB
Python
102 lines
3.2 KiB
Python
#!/usr/bin/env python3
|
|
|
|
# This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
# See the COPYING file in the top-level directory.
|
|
|
|
"""
|
|
QAPI Generator
|
|
|
|
This is the main entry point for generating C code from the QAPI schema.
|
|
"""
|
|
|
|
import argparse
|
|
import re
|
|
import sys
|
|
from typing import Optional
|
|
|
|
from qapi.commands import gen_commands
|
|
from qapi.error import QAPIError
|
|
from qapi.events import gen_events
|
|
from qapi.introspect import gen_introspect
|
|
from qapi.schema import QAPISchema
|
|
from qapi.types import gen_types
|
|
from qapi.visit import gen_visit
|
|
|
|
|
|
def invalid_prefix_char(prefix: str) -> Optional[str]:
|
|
match = re.match(r'([A-Za-z_.-][A-Za-z0-9_.-]*)?', prefix)
|
|
if match.end() != len(prefix):
|
|
return prefix[match.end()]
|
|
return None
|
|
|
|
|
|
def generate(schema_file: str,
|
|
output_dir: str,
|
|
prefix: str,
|
|
unmask: bool = False,
|
|
builtins: bool = False) -> None:
|
|
"""
|
|
Generate C code for the given schema into the target directory.
|
|
|
|
:param schema_file: The primary QAPI schema file.
|
|
:param output_dir: The output directory to store generated code.
|
|
:param prefix: Optional C-code prefix for symbol names.
|
|
:param unmask: Expose non-ABI names through introspection?
|
|
:param builtins: Generate code for built-in types?
|
|
|
|
:raise QAPIError: On failures.
|
|
"""
|
|
assert invalid_prefix_char(prefix) is None
|
|
|
|
schema = QAPISchema(schema_file)
|
|
gen_types(schema, output_dir, prefix, builtins)
|
|
gen_visit(schema, output_dir, prefix, builtins)
|
|
gen_commands(schema, output_dir, prefix)
|
|
gen_events(schema, output_dir, prefix)
|
|
gen_introspect(schema, output_dir, prefix, unmask)
|
|
|
|
|
|
def main() -> int:
|
|
"""
|
|
gapi-gen executable entry point.
|
|
Expects arguments via sys.argv, see --help for details.
|
|
|
|
:return: int, 0 on success, 1 on failure.
|
|
"""
|
|
parser = argparse.ArgumentParser(
|
|
description='Generate code from a QAPI schema')
|
|
parser.add_argument('-b', '--builtins', action='store_true',
|
|
help="generate code for built-in types")
|
|
parser.add_argument('-o', '--output-dir', action='store',
|
|
default='',
|
|
help="write output to directory OUTPUT_DIR")
|
|
parser.add_argument('-p', '--prefix', action='store',
|
|
default='',
|
|
help="prefix for symbols")
|
|
parser.add_argument('-u', '--unmask-non-abi-names', action='store_true',
|
|
dest='unmask',
|
|
help="expose non-ABI names in introspection")
|
|
parser.add_argument('schema', action='store')
|
|
args = parser.parse_args()
|
|
|
|
funny_char = invalid_prefix_char(args.prefix)
|
|
if funny_char:
|
|
msg = f"funny character '{funny_char}' in argument of --prefix"
|
|
print(f"{sys.argv[0]}: {msg}", file=sys.stderr)
|
|
return 1
|
|
|
|
try:
|
|
generate(args.schema,
|
|
output_dir=args.output_dir,
|
|
prefix=args.prefix,
|
|
unmask=args.unmask,
|
|
builtins=args.builtins)
|
|
except QAPIError as err:
|
|
print(f"{sys.argv[0]}: {str(err)}", file=sys.stderr)
|
|
return 1
|
|
return 0
|
|
|
|
|
|
if __name__ == '__main__':
|
|
sys.exit(main())
|