#!/usr/bin/python -t # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Library General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # Copyright 2005 Duke University """ Entrance point for the yum command line interface. """ import os import os.path import sys import logging import time import errno from yum import Errors from yum import plugins from yum import logginglevels from yum import _ from yum.i18n import to_unicode, utf8_width, exception2msg import yum.misc import cli from utils import suppress_keyboard_interrupt_message, show_lock_owner def main(args): """This does all the real work""" yum.misc.setup_locale(override_time=True) def exUserCancel(): logger.critical(_('\n\nExiting on user cancel')) if unlock(): return 200 return 1 def exIOError(e): if e.errno == 32: logger.critical(_('\n\nExiting on Broken Pipe')) else: logger.critical(_('\n\n%s') % exception2msg(e)) if unlock(): return 200 return 1 def exPluginExit(e): '''Called when a plugin raises PluginYumExit. Log the plugin's exit message if one was supplied. ''' # ' xemacs hack exitmsg = exception2msg(e) if exitmsg: logger.warn('\n\n%s', exitmsg) if unlock(): return 200 return 1 def exFatal(e): logger.critical('\n\n%s', exception2msg(e.value)) if unlock(): return 200 return 1 def unlock(): try: base.closeRpmDB() base.doUnlock() except Errors.LockError, e: return 200 return 0 def rpmdb_warn_checks(): try: probs = base._rpmdb_warn_checks(out=verbose_logger.info, warn=False) except Errors.YumBaseError, e: # This is mainly for PackageSackError from rpmdb. verbose_logger.info(_(" Yum checks failed: %s"), exception2msg(e)) probs = [] if not probs: verbose_logger.info(_(" You could try running: rpm -Va --nofiles --nodigest")) logger = logging.getLogger("yum.main") verbose_logger = logging.getLogger("yum.verbose.main") # Try to open the current directory to see if we have # read and execute access. If not, chdir to / try: f = open(".") except IOError, e: if e.errno == errno.EACCES: logger.critical(_('No read/execute access in current directory, moving to /')) os.chdir("/") else: f.close() try: os.getcwd() except OSError, e: if e.errno == errno.ENOENT: logger.critical(_('No getcwd() access in current directory, moving to /')) os.chdir("/") # our core object for the cli base = cli.YumBaseCli() # do our cli parsing and config file setup # also sanity check the things being passed on the cli try: base.getOptionsConfig(args) except plugins.PluginYumExit, e: return exPluginExit(e) except Errors.YumBaseError, e: return exFatal(e) lockerr = "" while True: try: base.doLock() except Errors.LockError, e: if exception2msg(e) != lockerr: lockerr = exception2msg(e) logger.critical(lockerr) if (e.errno not in (errno.EPERM, errno.EACCES) and not base.conf.exit_on_lock): logger.critical(_("Another app is currently holding the yum lock; waiting for it to exit...")) tm = 0.1 if show_lock_owner(e.pid, logger): tm = 2 time.sleep(tm) elif e.errno in (errno.EPERM, errno.EACCES): logger.critical(_("Can't create lock file; exiting")) return 1 else: logger.critical(_("Another app is currently holding the yum lock; exiting as configured by exit_on_lock")) return 1 else: break try: result, resultmsgs = base.doCommands() except plugins.PluginYumExit, e: return exPluginExit(e) except Errors.YumBaseError, e: result = 1 resultmsgs = [exception2msg(e)] except KeyboardInterrupt: return exUserCancel() except IOError, e: return exIOError(e) # Act on the command/shell result if result == 0: # Normal exit for msg in resultmsgs: verbose_logger.log(logginglevels.INFO_2, '%s', msg) if unlock(): return 200 return base.exit_code elif result == 1: # Fatal error for msg in resultmsgs: logger.critical(_('Error: %s'), msg) if unlock(): return 200 return 1 elif result == 2: # Continue on pass elif result == 100: if unlock(): return 200 return 100 else: logger.critical(_('Unknown Error(s): Exit Code: %d:'), result) for msg in resultmsgs: logger.critical(msg) if unlock(): return 200 return 3 # Depsolve stage verbose_logger.log(logginglevels.INFO_2, _('Resolving Dependencies')) try: (result, resultmsgs) = base.buildTransaction() except plugins.PluginYumExit, e: return exPluginExit(e) except Errors.YumBaseError, e: result = 1 resultmsgs = [exception2msg(e)] except KeyboardInterrupt: return exUserCancel() except IOError, e: return exIOError(e) # Act on the depsolve result if result == 0: # Normal exit if unlock(): return 200 return base.exit_code elif result == 1: # Fatal error for prefix, msg in base.pretty_output_restring(resultmsgs): logger.critical(prefix, msg) if base._depsolving_failed: if not base.conf.skip_broken: verbose_logger.info(_(" You could try using --skip-broken to work around the problem")) rpmdb_warn_checks() if unlock(): return 200 return 1 elif result == 2: # Continue on pass else: logger.critical(_('Unknown Error(s): Exit Code: %d:'), result) for msg in resultmsgs: logger.critical(msg) if unlock(): return 200 return 3 verbose_logger.log(logginglevels.INFO_2, _('\nDependencies Resolved')) # Run the transaction try: return_code = base.doTransaction() except plugins.PluginYumExit, e: return exPluginExit(e) except Errors.YumBaseError, e: return exFatal(e) except KeyboardInterrupt: return exUserCancel() except IOError, e: return exIOError(e) # rpm_check_debug failed. if type(return_code) == type((0,)) and len(return_code) == 2: (result, resultmsgs) = return_code for msg in resultmsgs: logger.critical("%s", msg) rpmdb_warn_checks() return_code = result if base._ts_save_file: verbose_logger.info(_("Your transaction was saved, rerun it with:\n yum load-transaction %s") % base._ts_save_file) elif return_code < 0: return_code = 1 # Means the pre-transaction checks failed... # This includes: # . No packages. # . Hitting N at the prompt. # . GPG check failures. if base._ts_save_file: verbose_logger.info(_("Your transaction was saved, rerun it with:\n yum load-transaction %s") % base._ts_save_file) else: verbose_logger.log(logginglevels.INFO_2, _('Complete!')) if unlock(): return 200 return return_code or base.exit_code def hotshot(func, *args, **kwargs): import hotshot.stats fn = os.path.expanduser("~/yum.prof") prof = hotshot.Profile(fn) rc = prof.runcall(func, *args, **kwargs) prof.close() print_stats(hotshot.stats.load(fn)) return rc def cprof(func, *args, **kwargs): import cProfile, pstats fn = os.path.expanduser("~/yum.prof") prof = cProfile.Profile() rc = prof.runcall(func, *args, **kwargs) prof.dump_stats(fn) print_stats(pstats.Stats(fn)) return rc def print_stats(stats): stats.strip_dirs() stats.sort_stats('time', 'calls') stats.print_stats(20) stats.sort_stats('cumulative') stats.print_stats(40) def user_main(args, exit_code=False): """ This calls one of the multiple main() functions based on env. vars """ errcode = None if 'YUM_PROF' in os.environ: if os.environ['YUM_PROF'] == 'cprof': errcode = cprof(main, args) if os.environ['YUM_PROF'] == 'hotshot': errcode = hotshot(main, args) if 'YUM_PDB' in os.environ: import pdb pdb.run(main(args)) if errcode is None: errcode = main(args) if exit_code: sys.exit(errcode) return errcode suppress_keyboard_interrupt_message() if __name__ == "__main__": try: user_main(sys.argv[1:], exit_code=True) except KeyboardInterrupt, e: print >> sys.stderr, _("\n\nExiting on user cancel.") sys.exit(1)