@@ -4,94 +4,16 @@
# See the COPYING file in the top-level directory.
"""
-QAPI Generator
+QAPI code generation execution shim.
-This script is the main entry point for generating C code from the QAPI schema.
+This standalone script exists primarily to facilitate the running of the QAPI
+code generator without needing to install the python module to the current
+execution environment.
"""
-import argparse
-import re
import sys
-from qapi.commands import gen_commands
-from qapi.doc import gen_doc
-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
-
-
-DEFAULT_OUTPUT_DIR = ''
-DEFAULT_PREFIX = ''
-
-
-def generate(schema_file: str,
- output_dir: str,
- prefix: str,
- unmask: bool = False,
- builtins: bool = False) -> None:
- """
- generate uses a given schema to produce C code in 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.
- """
- match = re.match(r'([A-Za-z_.-][A-Za-z0-9_.-]*)?', prefix)
- if match and match.end() != len(prefix):
- msg = "funny character '{:s}' in prefix '{:s}'".format(
- prefix[match.end()], prefix)
- raise QAPIError('', None, msg)
-
- 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)
- gen_doc(schema, output_dir, prefix)
-
-
-def main() -> int:
- """
- gapi-gen shell script entrypoint.
- 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=DEFAULT_OUTPUT_DIR,
- help="write output to directory OUTPUT_DIR")
- parser.add_argument('-p', '--prefix', action='store',
- default=DEFAULT_PREFIX,
- 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()
-
- 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
-
+from qapi import main
if __name__ == '__main__':
- sys.exit(main())
+ sys.exit(main.main())
new file mode 100644
@@ -0,0 +1,91 @@
+# 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 qapi.commands import gen_commands
+from qapi.doc import gen_doc
+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
+
+
+DEFAULT_OUTPUT_DIR = ''
+DEFAULT_PREFIX = ''
+
+
+def generate(schema_file: str,
+ output_dir: str,
+ prefix: str,
+ unmask: bool = False,
+ builtins: bool = False) -> None:
+ """
+ generate uses a given schema to produce C code in 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.
+ """
+ match = re.match(r'([A-Za-z_.-][A-Za-z0-9_.-]*)?', prefix)
+ if match and match.end() != len(prefix):
+ msg = "funny character '{:s}' in prefix '{:s}'".format(
+ prefix[match.end()], prefix)
+ raise QAPIError('', None, msg)
+
+ 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)
+ gen_doc(schema, output_dir, prefix)
+
+
+def main() -> int:
+ """
+ gapi-gen shell script entrypoint.
+ 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=DEFAULT_OUTPUT_DIR,
+ help="write output to directory OUTPUT_DIR")
+ parser.add_argument('-p', '--prefix', action='store',
+ default=DEFAULT_PREFIX,
+ 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()
+
+ 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
As part of delinting and adding type hints to the QAPI generator, it's helpful for the entrypoint to be part of the package, only leaving a very tiny entrypoint shim outside of the module. Signed-off-by: John Snow <jsnow@redhat.com> --- scripts/qapi-gen.py | 90 +++---------------------------------------- scripts/qapi/main.py | 91 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 97 insertions(+), 84 deletions(-) create mode 100644 scripts/qapi/main.py