зеркало из https://github.com/microsoft/clang.git
74 строки
1.9 KiB
Python
Executable File
74 строки
1.9 KiB
Python
Executable File
#!/usr/bin/env python
|
|
|
|
"""CaptureCmd - A generic tool for capturing information about the
|
|
invocations of another program.
|
|
|
|
Usage
|
|
--
|
|
1. Move the original tool to a safe known location.
|
|
|
|
2. Link CaptureCmd to the original tool's location.
|
|
|
|
3. Define CAPTURE_CMD_PROGRAM to the known location of the original
|
|
tool; this must be an absolute path.
|
|
|
|
4. Define CAPTURE_CMD_DIR to a directory to write invocation
|
|
information to.
|
|
"""
|
|
|
|
import hashlib
|
|
import os
|
|
import sys
|
|
import time
|
|
|
|
def saveCaptureData(prefix, dir, object):
|
|
string = repr(object) + '\n'
|
|
key = hashlib.sha1(string).hexdigest()
|
|
path = os.path.join(dir,
|
|
prefix + key)
|
|
if not os.path.exists(path):
|
|
f = open(path, 'wb')
|
|
f.write(string)
|
|
f.close()
|
|
return prefix + key
|
|
|
|
def main():
|
|
program = os.getenv('CAPTURE_CMD_PROGRAM')
|
|
dir = os.getenv('CAPTURE_CMD_DIR')
|
|
fallback = os.getenv('CAPTURE_CMD_FALLBACK')
|
|
if not program:
|
|
raise ValueError('CAPTURE_CMD_PROGRAM is not defined!')
|
|
if not dir:
|
|
raise ValueError('CAPTURE_CMD_DIR is not defined!')
|
|
|
|
# Make the output directory if it doesn't already exist.
|
|
if not os.path.exists(dir):
|
|
os.mkdir(dir, 0700)
|
|
|
|
# Get keys for various data.
|
|
env = os.environ.items()
|
|
env.sort()
|
|
envKey = saveCaptureData('env-', dir, env)
|
|
cwdKey = saveCaptureData('cwd-', dir, os.getcwd())
|
|
argvKey = saveCaptureData('argv-', dir, sys.argv)
|
|
entry = (time.time(), envKey, cwdKey, argvKey)
|
|
saveCaptureData('cmd-', dir, entry)
|
|
|
|
if fallback:
|
|
pid = os.fork()
|
|
if not pid:
|
|
os.execv(program, sys.argv)
|
|
os._exit(1)
|
|
else:
|
|
res = os.waitpid(pid, 0)
|
|
if not res:
|
|
os.execv(fallback, sys.argv)
|
|
os._exit(1)
|
|
os._exit(res)
|
|
else:
|
|
os.execv(program, sys.argv)
|
|
os._exit(1)
|
|
|
|
if __name__ == '__main__':
|
|
main()
|