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#!/usr/bin/python
# Copyright 2006-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
from __future__ import print_function
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
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
pym_path = osp.join(osp.dirname(osp.dirname(
osp.realpath(__file__))), "pym")
sys.path.insert(0, pym_path)
from _emerge.main import emerge_main
if __name__ == "__main__":
import sys
from portage.exception import ParseError, PermissionDenied
try:
retval = emerge_main()
except PermissionDenied as e:
sys.stderr.write("Permission denied: '%s'\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()
try:
from portage.elog import mod_echo
except ImportError:
pass
else:
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)
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