dart-sdk/tools/spec_parse.py
Nate Bosch 55f81f2210 Mass format python with yapf
- Add `.style.yapf` with configuration to use Google style.
- Run `yapf` on all `.py` files in this repo.
- Manually fix one trailing space in a doc string.
- Run `git cl format runtime` to satisfy presubmit.

Change-Id: I7e6bd11e91f07926b9188362599af398551eed79
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/111600
Commit-Queue: Nate Bosch <nbosch@google.com>
Reviewed-by: Alexander Thomas <athom@google.com>
2019-08-05 20:34:31 +00:00

51 lines
1.7 KiB
Python
Executable file

#!/usr/bin/env python
#
# Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
# for details. All rights reserved. Use of this source code is governed by a
# BSD-style license that can be found in the LICENSE file.
# This script runs the parser which is generated using ANTLR 4 from
# docs/language/Dart.g. It relies on a certain environment and is hence
# usable locally where this environment can be obtained, but it may not be
# possible to run it, e.g., on build bots. The requirements are as follows:
#
# - `make parser` in spec_parser has been executed successfully.
# - A suitable JVM is in the PATH and may be executed as 'java'.
# - the ANTLR3 jar is available as /usr/share/java/antlr4-runtime.jar.
import os
import string
import subprocess
import sys
import utils
def Help(missing):
print('Execution of the spec parser failed. Missing: ' + missing)
print('Please read the comment near the top of spec_parse.py.\n')
sys.exit(1)
def Main():
args = sys.argv[1:]
tools_dir = os.path.dirname(os.path.realpath(__file__))
spec_parser_dir = os.path.join(tools_dir, 'spec_parser')
spec_parser_file = os.path.join(spec_parser_dir, 'SpecParser.class')
antlr_jar = '/usr/share/java/antlr4-runtime.jar'
class_path = string.join([spec_parser_dir, antlr_jar], ':')
command = ['java', '-cp', class_path, 'SpecParser'] + args
if not os.path.exists(antlr_jar): Help(antlr_jar)
if not os.path.exists(spec_parser_file):
Help('"make parser" in spec_parser')
with utils.CoreDumpArchiver(args):
exit_code = subprocess.call(command)
utils.DiagnoseExitCode(exit_code, command)
return exit_code
if __name__ == '__main__':
sys.exit(Main())