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testutils.py

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import os

import subprocess

import json

def __run_subprocess(args, env=None, cwd=None, timeout=None):

p = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=env, cwd=cwd)

try:

stdout, stderr = p.communicate(timeout=timeout)

return_code = p.returncode

p = None

except subprocess.TimeoutExpired:

import psutil

# terminate all the child processes

child_procs = psutil.Process(p.pid).children(recursive=True)

if len(child_procs) > 0:

for child in child_procs:

child.terminate()

try:

# call with timeout since it might be stuck

p.communicate(timeout=5)

p = None

except subprocess.TimeoutExpired:

pass

raise

finally:

if p:

# sending the signal to the process groups causes the parent Python process to terminate as well

#os.killpg(os.getpgid(p.pid), signal.SIGTERM) # Send the signal to all the process groups

p.terminate()

stdout, stderr = p.communicate()

p = None

stdout = stdout.decode(encoding='utf-8', errors='ignore').replace('\r\n', '\n')

stderr = stderr.decode(encoding='utf-8', errors='ignore').replace('\r\n', '\n')

return return_code, stdout, stderr

def simplecpp(args = [], cwd = None):

dir_path = os.path.dirname(os.path.realpath(__file__))

if 'SIMPLECPP_EXE_PATH' in os.environ:

simplecpp_path = os.environ['SIMPLECPP_EXE_PATH']

else:

simplecpp_path = os.path.join(dir_path, "simplecpp")

return __run_subprocess([simplecpp_path] + args, cwd = cwd)

def quoted_string(s):

return json.dumps(str(s))

def format_include_path_arg(include_path):

return f"-I{str(include_path)}"

def format_include(include, is_sys_header=False):

if is_sys_header:

return f"<{quoted_string(include)[1:-1]}>"

else:

return quoted_string(include)