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# Copyright (c) 2018 Egor Tensin <Egor.Tensin@gmail.com>
# This file is part of the "cgitize" project.
# For details, see https://github.com/egor-tensin/cgitize.
# Distributed under the MIT License.
from contextlib import contextmanager
import logging
import os
import subprocess
import sys
@contextmanager
def setup_logging():
logging.basicConfig(
level=logging.DEBUG,
datefmt='%Y-%m-%d %H:%M:%S',
format='%(asctime)s | %(levelname)s | %(message)s',
# Log to stdout, because that's where subprocess's output goes (so that
# the don't get interleaved).
stream=sys.stdout)
try:
yield
except Exception as e:
logging.exception(e)
raise
def run(*args, capture_output=False, **kwargs):
stdout = None
stderr = None
if capture_output:
stdout = subprocess.PIPE
stderr = subprocess.STDOUT
logging.debug('%s', args)
result = subprocess.run(args, check=True, stdout=stdout, stderr=stderr,
encoding='utf-8', **kwargs)
if result.stdout is not None:
logging.debug('\n%s', result.stdout)
return result.stdout
def try_run(*args, **kwargs):
try:
run(*args, **kwargs)
return True
except subprocess.CalledProcessError as e:
return e.returncode == 0
def run_capture(*args, **kwargs):
return run(*args, capture_output=True, **kwargs)
def try_run_capture(*args, **kwargs):
try:
return True, run(*args, capture_output=True, **kwargs)
except subprocess.CalledProcessError as e:
return e.returncode == 0, e.output
@contextmanager
def chdir(new_cwd):
old_cwd = os.getcwd()
os.chdir(new_cwd)
try:
yield
finally:
os.chdir(old_cwd)
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