dart-sdk/build/gn_run_binary.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

67 lines
2 KiB
Python
Executable file

#!/usr/bin/env python
# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Helper script for GN to run an arbitrary binary. See compiled_action.gni.
Run with:
python gn_run_binary.py <invoker> <binary_name> [args ...]
Where <invoker> is either "compiled_action" or "exec_script". If it is
"compiled_action" the script has a non-zero exit code on a failure. If it is
"exec_script" the script has no output on success and produces output otherwise,
but always has an exit code of 0.
"""
import os
import sys
import subprocess
# Run a command, swallowing the output unless there is an error.
def run_command(command):
try:
subprocess.check_output(command, stderr=subprocess.STDOUT)
return 0
except subprocess.CalledProcessError as e:
return ("Command failed: " + ' '.join(command) + "\n" + "output: " +
e.output)
except OSError as e:
return ("Command failed: " + ' '.join(command) + "\n" + "output: " +
e.strerror)
def main(argv):
error_exit = 0
if argv[1] == "compiled_action":
error_exit = 1
elif argv[1] != "exec_script":
print("The first argument should be either "
"'compiled_action' or 'exec_script")
return 1
# Unless the path is absolute, this script is designed to run binaries
# produced by the current build. We always prefix it with "./" to avoid
# picking up system versions that might also be on the path.
if os.path.isabs(argv[2]):
path = argv[2]
else:
path = './' + argv[2]
if not os.path.isfile(path):
print("Binary not found: " + path)
return error_exit
# The rest of the arguments are passed directly to the executable.
args = [path] + argv[3:]
result = run_command(args)
if result != 0:
print(result)
return error_exit
return 0
if __name__ == '__main__':
sys.exit(main(sys.argv))