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#!/usr/bin/env python
# Copyright 2006-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
import platform
import signal
import sys
# This block ensures that ^C interrupts are handled quietly. We handle
# KeyboardInterrupt instead of installing a SIGINT handler, since
# exiting from signal handlers intermittently causes python to ignore
# the SystemExit exception with a message like this:
# Exception SystemExit: 130 in <function remove at 0x7fd2146c1320> ignored
global_event_loop = None
try:
def exithandler(signum, _frame):
signal.signal(signal.SIGTERM, signal.SIG_IGN)
sys.exit(128 + signum)
signal.signal(signal.SIGTERM, exithandler)
# Prevent "[Errno 32] Broken pipe" exceptions when
# writing to a pipe.
signal.signal(signal.SIGPIPE, signal.SIG_DFL)
def debug_signal(_signum, _frame):
import pdb
pdb.set_trace()
if platform.python_implementation() == "Jython":
debug_signum = signal.SIGUSR2 # bug #424259
else:
debug_signum = signal.SIGUSR1
signal.signal(debug_signum, debug_signal)
from os import path as osp
if osp.isfile(
osp.join(
osp.dirname(osp.dirname(osp.realpath(__file__))), ".portage_not_installed"
)
):
sys.path.insert(
0, osp.join(osp.dirname(osp.dirname(osp.realpath(__file__))), "lib")
)
import portage
portage._internal_caller = True
portage._disable_legacy_globals()
from portage.elog import mod_echo
from portage.exception import IsADirectory, ParseError, PermissionDenied
from portage.util._eventloop.global_event_loop import global_event_loop
from _emerge.main import emerge_main
if __name__ == "__main__":
portage.process.sanitize_fds()
try:
retval = emerge_main()
except PermissionDenied as e:
sys.stderr.write("Permission denied: '%s'\n" % str(e))
sys.exit(e.errno)
except IsADirectory as e:
sys.stderr.write(
"'%s' is a directory, but should be a file!\n"
"See portage man page for information on "
"which files may be directories.\n" % str(e)
)
sys.exit(e.errno)
except ParseError as e:
sys.stderr.write("%s\n" % str(e))
sys.exit(1)
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
# If an unexpected exception occurs then we don't want the
# mod_echo output to obscure the traceback, so dump the
# mod_echo output before showing the traceback.
import traceback
tb_str = traceback.format_exc()
mod_echo.finalize()
sys.stderr.write(tb_str)
sys.exit(1)
sys.exit(retval)
except KeyboardInterrupt:
sys.stderr.write("\n\nExiting on signal %(signal)s\n" % {"signal": signal.SIGINT})
sys.stderr.flush()
sys.exit(128 + signal.SIGINT)
finally:
if global_event_loop is not None:
global_event_loop().close()
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