bin/emerge

   1 #!/usr/bin/python
   2 # Copyright 2006-2012 Gentoo Foundation
   3 # Distributed under the terms of the GNU General Public License v2
   4
   5 from __future__ import print_function
   6
   7 import platform
   8 import signal
   9 import sys
  10 # This block ensures that ^C interrupts are handled quietly.
  11 try:
  12
  13         def exithandler(signum,frame):
  14                 signal.signal(signal.SIGINT, signal.SIG_IGN)
  15                 signal.signal(signal.SIGTERM, signal.SIG_IGN)
  16                 sys.exit(128 + signum)
  17
  18         signal.signal(signal.SIGINT, exithandler)
  19         signal.signal(signal.SIGTERM, exithandler)
  20         # Prevent "[Errno 32] Broken pipe" exceptions when
  21         # writing to a pipe.
  22         signal.signal(signal.SIGPIPE, signal.SIG_DFL)
  23
  24 except KeyboardInterrupt:
  25         sys.exit(128 + signal.SIGINT)
  26
  27 def debug_signal(signum, frame):
  28         import pdb
  29         pdb.set_trace()
  30
  31 if platform.python_implementation() == 'Jython':
  32         debug_signum = signal.SIGUSR2 # bug #424259
  33 else:
  34         debug_signum = signal.SIGUSR1
  35
  36 signal.signal(debug_signum, debug_signal)
  37
  38 try:
  39         from _emerge.main import emerge_main
  40 except ImportError:
  41         from os import path as osp
  42         import sys
  43         sys.path.insert(0, osp.join(osp.dirname(osp.dirname(osp.realpath(__file__))), "pym"))
  44         from _emerge.main import emerge_main
  45
  46 if __name__ == "__main__":
  47         import sys
  48         from portage.exception import ParseError, PermissionDenied
  49         try:
  50                 retval = emerge_main()
  51         except PermissionDenied as e:
  52                 sys.stderr.write("Permission denied: '%s'\n" % str(e))
  53                 sys.exit(e.errno)
  54         except ParseError as e:
  55                 sys.stderr.write("%s\n" % str(e))
  56                 sys.exit(1)
  57         except SystemExit:
  58                 raise
  59         except Exception:
  60                 # If an unexpected exception occurs then we don't want the mod_echo
  61                 # output to obscure the traceback, so dump the mod_echo output before
  62                 # showing the traceback.
  63                 import traceback
  64                 tb_str = traceback.format_exc()
  65                 try:
  66                         from portage.elog import mod_echo
  67                 except ImportError:
  68                         pass
  69                 else:
  70                         mod_echo.finalize()
  71                 sys.stderr.write(tb_str)
  72                 sys.exit(1)
  73         sys.exit(retval)