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import logging
from logging import FileHandler
import os
import re
import shlex
import subprocess
import sys
from time import monotonic
project_dir: str = os.path.realpath(os.path.join(os.path.dirname(__file__), ".."))
def quote_all(*args):
quoted = []
for arg in args:
quoted.append(shlex.quote(arg))
return tuple(quoted)
def execute(command, timeout: int = None, passthrough=False, passthrough_prefix=None, **kwargs):
if passthrough:
kwargs["stdout"] = subprocess.PIPE
kwargs["stderr"] = subprocess.STDOUT
if "stdout" not in kwargs:
kwargs["stdout"] = subprocess.PIPE
if "stderr" not in kwargs:
kwargs["stderr"] = subprocess.STDOUT
if "shell" not in kwargs:
kwargs["shell"] = True
process = subprocess.Popen(command, **kwargs)
if passthrough:
file_log_handler = find_file_log_handler()
buffer = TerminalLineBuffer()
stdout = process.stdout
deadline = monotonic() + timeout if timeout is not None else None
while process.poll() is None and (deadline is None or deadline < monotonic()):
# noinspection PyTypeChecker
value: bytes = stdout.read(1)
sys.stdout.buffer.write(value)
if file_log_handler is not None:
buffer.feed(value)
if buffer.is_complete():
sys.stdout.buffer.flush()
line = buffer.get_line()
file_log_handler.handle(create_stdout_log_record(line, passthrough_prefix))
# noinspection PyTypeChecker
rest: bytes = stdout.read()
sys.stdout.buffer.write(rest)
sys.stdout.buffer.flush()
if file_log_handler is not None:
buffer.feed(rest)
line = buffer.get_line()
if line:
file_log_handler.handle(create_stdout_log_record(line, passthrough_prefix))
if deadline is not None and deadline >= monotonic() and process.poll() is None:
process.kill()
raise subprocess.TimeoutExpired(process.args, timeout)
else:
process.wait(timeout)
exit_code = process.returncode
if exit_code != 0:
message = "Command '%s' failed, exit code: %s" % (command, exit_code)
if not passthrough:
# noinspection PyUnresolvedReferences
message += ", output: %s" % process.stdout.read().decode("utf-8")
raise ProcessException(message)
if passthrough:
return exit_code
else:
# noinspection PyUnresolvedReferences
return process.stdout.read().decode("utf-8")
class ProcessException(Exception):
pass
class TerminalLineBuffer:
last_value: bytes
def __init__(self):
self.line_buffer = b""
# ANSI control sequences
self.control_sequences_regex = re.compile(r"\x1B(?:[@-Z\\-_]|\[[0-?]*[ -/]*[@-~])")
self.carriage_return_regex = re.compile(r"[\r\n]+\s*[\r\n]*")
def feed(self, value: bytes):
self.last_value = value
self.line_buffer += value
def is_complete(self):
return self.last_value == b"\n"
def get_line(self):
line = self.line_buffer.decode("utf-8")
self.line_buffer = b""
line = self.carriage_return_regex.sub("\n", line)
line = self.control_sequences_regex.sub("", line)
return line.strip("\r\n") + "\n"
def create_stdout_log_record(message, passthrough_prefix=None, level=logging.INFO):
message = message.rstrip()
if passthrough_prefix is not None:
message = "%s%s" % (passthrough_prefix, message)
return logging.LogRecord("root", level, "", 0, message, None, None, None)
class LessThanLevelFilter(logging.Filter):
def __init__(self, exclusive_maximum, name="LessThanLevelFilter"):
super(LessThanLevelFilter, self).__init__(name)
self.maximum_level = exclusive_maximum
def filter(self, record):
return 1 if record.levelno < self.maximum_level else 0
def setup_logging(name="test"):
logger = logging.getLogger()
logger.setLevel(logging.INFO)
formatter = logging.Formatter("%(asctime)s - %(levelname)s - %(message)s")
stderr_level = logging.WARNING
stdout_handler = logging.StreamHandler(sys.stdout)
stdout_handler.setLevel(logging.INFO)
stdout_handler.addFilter(LessThanLevelFilter(stderr_level))
stdout_handler.setFormatter(formatter)
logger.addHandler(stdout_handler)
stderr_handler = logging.StreamHandler(sys.stderr)
stderr_handler.setLevel(stderr_level)
stderr_handler.setFormatter(formatter)
logger.addHandler(stderr_handler)
log_file = os.path.join(project_dir, "build", "%s.log" % name)
if os.path.exists(log_file):
previous_log_file = "%s.2" % log_file
if os.path.exists(previous_log_file):
os.remove(previous_log_file)
os.rename(log_file, previous_log_file)
file_handler = FileHandler(log_file, encoding="utf-8")
file_handler.my_log_file = log_file
file_handler.setFormatter(formatter)
file_handler.setLevel(logging.INFO)
logger.addHandler(file_handler)
def find_file_log_handler():
file_log_handler = None
for handler in logging.getLogger().handlers:
if isinstance(handler, FileHandler):
file_log_handler = handler
break
return file_log_handler
def get_my_log_file():
file_log_handler = find_file_log_handler()
if file_log_handler is not None and hasattr(file_log_handler, "my_log_file"):
return file_log_handler.my_log_file
return "can't find it"
def refuse_root():
if os.geteuid() == 0:
logging.error(
"ERROR: 'root' user detected, please don't run this script as root,"
" run as any other regular user that has docker access (usermod -aG docker YOUR_USER),"
" the root privileges would break some packages.")
exit(1)
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