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Mini Shell
Mini Shell
import logging
import os
import sys
from datetime import datetime
def run(args=None, options=None, env=None):
env = os.environ if env is None else env
start = datetime.now()
from virtualenv.run import cli_run
from virtualenv.util.error import ProcessCallFailed
if args is None:
args = sys.argv[1:]
try:
session = cli_run(args, options, env)
logging.warning(LogSession(session, start))
except ProcessCallFailed as exception:
print(f"subprocess call failed for {exception.cmd} with code {exception.code}")
print(exception.out, file=sys.stdout, end="")
print(exception.err, file=sys.stderr, end="")
raise SystemExit(exception.code)
class LogSession:
def __init__(self, session, start):
self.session = session
self.start = start
def __str__(self):
spec = self.session.creator.interpreter.spec
elapsed = (datetime.now() - self.start).total_seconds() * 1000
lines = [
f"created virtual environment {spec} in {elapsed:.0f}ms",
f" creator {str(self.session.creator)}",
]
if self.session.seeder.enabled:
lines.append(f" seeder {str(self.session.seeder)}")
path = self.session.creator.purelib.iterdir()
packages = sorted("==".join(i.stem.split("-")) for i in path if i.suffix == ".dist-info")
lines.append(f" added seed packages: {', '.join(packages)}")
if self.session.activators:
lines.append(f" activators {','.join(i.__class__.__name__ for i in self.session.activators)}")
return "\n".join(lines)
def run_with_catch(args=None, env=None):
from virtualenv.config.cli.parser import VirtualEnvOptions
env = os.environ if env is None else env
options = VirtualEnvOptions()
try:
run(args, options, env)
except (KeyboardInterrupt, SystemExit, Exception) as exception:
try:
if getattr(options, "with_traceback", False):
raise
else:
if not (isinstance(exception, SystemExit) and exception.code == 0):
logging.error("%s: %s", type(exception).__name__, exception)
code = exception.code if isinstance(exception, SystemExit) else 1
sys.exit(code)
finally:
logging.shutdown() # force flush of log messages before the trace is printed
if __name__ == "__main__": # pragma: no cov
run_with_catch() # pragma: no cov
Zerion Mini Shell 1.0