def assert_can_execute(command_and_arguments,
prerequisite,
caller,
env,
no_path_search=False,
logger=None):
with tempfile.NamedTemporaryFile() as f:
try:
if IS_WIN and not is_string(
command_and_arguments) and not no_path_search:
which_cmd = which(command_and_arguments[0],
path=env.get("PATH") if env else None)
if which_cmd:
command_and_arguments[0] = which_cmd
if logger:
logger.debug(
"Verifying command: %s",
" ".join(repr(cmd) for cmd in command_and_arguments))
process = subprocess.Popen(command_and_arguments,
stdout=f,
stderr=f,
shell=False,
env=env)
process.wait()
except OSError:
raise MissingPrerequisiteException(prerequisite, caller)
def execute_command(command_and_arguments,
outfile_name=None,
env=None,
cwd=None,
error_file_name=None,
shell=False,
no_path_search=False,
logger=None):
if error_file_name is None and outfile_name:
error_file_name = outfile_name + ".err"
out_file_created = False
error_file_created = False
if not hasattr(outfile_name, "write"):
outfile_name = open(outfile_name, "w") if outfile_name else None
out_file_created = True
try:
if not hasattr(error_file_name, "write"):
error_file_name = open(error_file_name,
"w") if error_file_name else None
error_file_created = True
try:
if not shell and IS_WIN and not is_string(
command_and_arguments) and not no_path_search:
which_cmd = which(command_and_arguments[0],
path=env.get("PATH") if env else None)
if which_cmd:
command_and_arguments[0] = which_cmd
if logger:
logger.debug(
"Executing command: %s",
" ".join(repr(cmd) for cmd in command_and_arguments))
process = Popen(command_and_arguments,
stdout=outfile_name,
stderr=error_file_name,
env=env,
cwd=cwd,
shell=shell)
return process.wait()
finally:
if error_file_name and error_file_created:
error_file_name.close()
finally:
if outfile_name and out_file_created:
outfile_name.close()