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from __future__ import absolute_import, print_function, unicode_literals
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("subprocess call failed for {} with code {}".format(exception.cmd, exception.code))
print(exception.out, file=sys.stdout, end="")
print(exception.err, file=sys.stderr, end="")
raise SystemExit(exception.code)
class LogSession(object):
def __init__(self, session, start):
self.session = session
self.start = start
def __str__(self):
from virtualenv.util.six import ensure_text
spec = self.session.creator.interpreter.spec
elapsed = (datetime.now() - self.start).total_seconds() * 1000
lines = [
"created virtual environment {} in {:.0f}ms".format(spec, elapsed),
" creator {}".format(ensure_text(str(self.session.creator))),
]
if self.session.seeder.enabled:
lines += (
" seeder {}".format(ensure_text(str(self.session.seeder))),
" added seed packages: {}".format(
", ".join(
sorted(
"==".join(i.stem.split("-"))
for i in self.session.creator.purelib.iterdir()
if i.suffix == ".dist-info"
),
),
),
)
if self.session.activators:
lines.append(" activators {}".format(",".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
........