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callbacks.py
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drpm.py
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84.1
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28.1
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rpmsack.py
70.25
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58.36
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rpmtrans.py
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rpmtrans.pyc
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Code Editor : rpmtrans.py
#!/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 # Parts Copyright 2007 Red Hat, Inc import rpm import os import fcntl import time import logging import types import sys from yum.constants import * from yum import _ from yum.transactioninfo import TransactionMember import misc import tempfile class NoOutputCallBack: def __init__(self): pass def event(self, package, action, te_current, te_total, ts_current, ts_total): """ @param package: A yum package object or simple string of a package name @param action: A yum.constant transaction set state or in the obscure rpm repackage case it could be the string 'repackaging' @param te_current: current number of bytes processed in the transaction element being processed @param te_total: total number of bytes in the transaction element being processed @param ts_current: number of processes completed in whole transaction @param ts_total: total number of processes in the transaction. """ # this is where a progress bar would be called pass def scriptout(self, package, msgs): """package is the package. msgs is the messages that were output (if any).""" pass def errorlog(self, msg): """takes a simple error msg string""" pass def filelog(self, package, action): # check package object type - if it is a string - just output it """package is the same as in event() - a package object or simple string action is also the same as in event()""" pass class RPMBaseCallback: ''' Base class for a RPMTransaction display callback class ''' def __init__(self): self.action = { TS_UPDATE : _('Updating'), TS_ERASE: _('Erasing'), TS_INSTALL: _('Installing'), TS_TRUEINSTALL : _('Installing'), TS_OBSOLETED: _('Obsoleted'), TS_OBSOLETING: _('Installing'), TS_UPDATED: _('Cleanup'), 'repackaging': _('Repackaging')} # The fileaction are not translated, most sane IMHO / Tim self.fileaction = { TS_UPDATE: 'Updated', TS_ERASE: 'Erased', TS_INSTALL: 'Installed', TS_TRUEINSTALL: 'Installed', TS_OBSOLETED: 'Obsoleted', TS_OBSOLETING: 'Installed', TS_UPDATED: 'Cleanup'} self.logger = logging.getLogger('yum.filelogging.RPMInstallCallback') def event(self, package, action, te_current, te_total, ts_current, ts_total): """ @param package: A yum package object or simple string of a package name @param action: A yum.constant transaction set state or in the obscure rpm repackage case it could be the string 'repackaging' @param te_current: Current number of bytes processed in the transaction element being processed @param te_total: Total number of bytes in the transaction element being processed @param ts_current: number of processes completed in whole transaction @param ts_total: total number of processes in the transaction. """ raise NotImplementedError() def scriptout(self, package, msgs): """package is the package. msgs is the messages that were output (if any).""" pass def errorlog(self, msg): # FIXME this should probably dump to the filelog, too print >> sys.stderr, msg def filelog(self, package, action): # If the action is not in the fileaction list then dump it as a string # hurky but, sadly, not much else if action in self.fileaction: msg = '%s: %s' % (self.fileaction[action], package) else: msg = '%s: %s' % (package, action) self.logger.info(msg) def verify_txmbr(self, base, txmbr, count): " Callback for post transaction when we are in verifyTransaction(). " pass class SimpleCliCallBack(RPMBaseCallback): def __init__(self): RPMBaseCallback.__init__(self) self.lastmsg = None self.lastpackage = None # name of last package we looked at def event(self, package, action, te_current, te_total, ts_current, ts_total): # this is where a progress bar would be called msg = '%s: %s %s/%s [%s/%s]' % (self.action[action], package, te_current, te_total, ts_current, ts_total) if msg != self.lastmsg: print msg self.lastmsg = msg self.lastpackage = package def scriptout(self, package, msgs): if msgs: print msgs, def verify_txmbr(self, base, txmbr, count): " Callback for post transaction when we are in verifyTransaction(). " print _("Verify: %u/%u: %s") % (count, len(base.tsInfo), txmbr) # This is ugly, but atm. rpm can go insane and run the "cleanup" phase # without the "install" phase if it gets an exception in it's callback. The # following means that we don't really need to know/care about that in the # display callback functions. # Note try/except's in RPMTransaction are for the same reason. class _WrapNoExceptions: def __init__(self, parent): self.__parent = parent def __getattr__(self, name): """ Wraps all access to the parent functions. This is so it'll eat all exceptions because rpm doesn't like exceptions in the callback. """ func = getattr(self.__parent, name) def newFunc(*args, **kwargs): try: func(*args, **kwargs) except Exception, e: # It's impossible to debug stuff without this: try: print "Error:", "display callback failed:", e except: pass newFunc.__name__ = func.__name__ newFunc.__doc__ = func.__doc__ newFunc.__dict__.update(func.__dict__) return newFunc class RPMTransaction: def __init__(self, base, test=False, display=NoOutputCallBack): if not callable(display): self.display = display else: self.display = display() # display callback self.display = _WrapNoExceptions(self.display) self.base = base # base yum object b/c we need so much self.test = test # are we a test? self.trans_running = False self.fd = None self.total_actions = 0 self.total_installed = 0 self.complete_actions = 0 self.installed_pkg_names = set() self.total_removed = 0 self.logger = logging.getLogger('yum.filelogging.RPMInstallCallback') self.filelog = False self._setupOutputLogging(base.conf.rpmverbosity) if not os.path.exists(self.base.conf.persistdir): os.makedirs(self.base.conf.persistdir) # make the dir, just in case # Error checking? -- these should probably be where else def _fdSetNonblock(self, fd): """ Set the Non-blocking flag for a filedescriptor. """ flag = os.O_NONBLOCK current_flags = fcntl.fcntl(fd, fcntl.F_GETFL) if current_flags & flag: return fcntl.fcntl(fd, fcntl.F_SETFL, current_flags | flag) def _fdSetCloseOnExec(self, fd): """ Set the close on exec. flag for a filedescriptor. """ flag = fcntl.FD_CLOEXEC current_flags = fcntl.fcntl(fd, fcntl.F_GETFD) if current_flags & flag: return fcntl.fcntl(fd, fcntl.F_SETFD, current_flags | flag) def _setupOutputLogging(self, rpmverbosity="info"): # UGLY... set up the transaction to record output from scriptlets io_r = tempfile.NamedTemporaryFile() self._readpipe = io_r self._writepipe = open(io_r.name, 'w+b') self.base.ts.setScriptFd(self._writepipe) rpmverbosity = {'critical' : 'crit', 'emergency' : 'emerg', 'error' : 'err', 'information' : 'info', 'warn' : 'warning'}.get(rpmverbosity, rpmverbosity) rpmverbosity = 'RPMLOG_' + rpmverbosity.upper() if not hasattr(rpm, rpmverbosity): rpmverbosity = 'RPMLOG_INFO' rpm.setVerbosity(getattr(rpm, rpmverbosity)) rpm.setLogFile(self._writepipe) def _shutdownOutputLogging(self): # reset rpm bits from reording output rpm.setVerbosity(rpm.RPMLOG_NOTICE) rpm.setLogFile(sys.stderr) try: self._writepipe.close() except: pass def _scriptOutput(self): try: out = self._readpipe.read() if not out: return None return out except IOError: pass def _scriptout(self, data): msgs = self._scriptOutput() self.display.scriptout(data, msgs) self.base.history.log_scriptlet_output(data, msgs) def __del__(self): self._shutdownOutputLogging() def _dopkgtup(self, hdr): tmpepoch = hdr['epoch'] if tmpepoch is None: epoch = '0' else: epoch = str(tmpepoch) return (hdr['name'], hdr['arch'], epoch, hdr['version'], hdr['release']) # Find out txmbr based on the callback key. On erasures we dont know # the exact txmbr but we always have a name, so return (name, txmbr) # tuples so callers have less twists to deal with. def _getTxmbr(self, cbkey, erase=False): if isinstance(cbkey, TransactionMember): return (cbkey.name, cbkey) elif isinstance(cbkey, tuple): pkgtup = self._dopkgtup(cbkey[0]) txmbrs = self.base.tsInfo.getMembers(pkgtup=pkgtup) # if this is not one, somebody screwed up assert len(txmbrs) == 1 return (txmbrs[0].name, txmbrs[0]) elif isinstance(cbkey, basestring): ret = None # If we don't have a tuple, it's because this is an erase txmbr and # rpm doesn't provide one in that case. So we can "cheat" and look # through all our txmbrs for the name we have, and if we find a # single match ... that must be it. if not erase: return (cbkey, None) for txmbr in self.base.tsInfo.matchNaevr(name=cbkey): if txmbr.output_state not in TS_REMOVE_STATES: continue # If we have more than one match, then we don't know which one # it is ... so just give up. if ret is not None: return (cbkey, None) ret = txmbr return (cbkey, ret) else: return (None, None) def _fn_rm_installroot(self, filename): """ Remove the installroot from the filename. """ # to handle us being inside a chroot at this point # we hand back the right path to those 'outside' of the chroot() calls # but we're using the right path inside. if self.base.conf.installroot == '/': return filename return filename.replace(os.path.normpath(self.base.conf.installroot),'') def ts_done_open(self): """ Open the transaction done file, must be started outside the chroot. """ if self.test: return False if hasattr(self, '_ts_done'): return True self.ts_done_fn = '%s/transaction-done.%s' % (self.base.conf.persistdir, self._ts_time) ts_done_fn = self._fn_rm_installroot(self.ts_done_fn) try: self._ts_done = open(ts_done_fn, 'w') except (IOError, OSError), e: self.display.errorlog('could not open ts_done file: %s' % e) self._ts_done = None return False self._fdSetCloseOnExec(self._ts_done.fileno()) return True def ts_done_write(self, msg): """ Write some data to the transaction done file. """ if self._ts_done is None: return try: self._ts_done.write(msg) self._ts_done.flush() except (IOError, OSError), e: # Having incomplete transactions is probably worse than having # nothing. self.display.errorlog('could not write to ts_done file: %s' % e) self._ts_done = None misc.unlink_f(self.ts_done_fn) def ts_done(self, package, action): """writes out the portions of the transaction which have completed""" if not self.ts_done_open(): return # walk back through self._te_tuples # make sure the package and the action make some kind of sense # write it out and pop(0) from the list # make sure we have a list to work from if len(self._te_tuples) == 0: # if we don't then this is pretrans or postrans or a trigger # either way we have to respond correctly so just return and don't # emit anything return (t,e,n,v,r,a) = self._te_tuples[0] # what we should be on # make sure we're in the right action state msg = 'ts_done state is %s %s should be %s %s' % (package, action, t, n) if action in TS_REMOVE_STATES: if t != 'erase': self.display.filelog(package, msg) if action in TS_INSTALL_STATES: if t != 'install': self.display.filelog(package, msg) # check the pkg name out to make sure it matches if type(package) in types.StringTypes: name = package else: name = package.name if n != name: msg = 'ts_done name in te is %s should be %s' % (n, package) self.display.filelog(package, msg) # hope springs eternal that this isn't wrong msg = '%s %s:%s-%s-%s.%s\n' % (t,e,n,v,r,a) self.ts_done_write(msg) self._te_tuples.pop(0) def ts_all(self): """write out what our transaction will do""" # save the transaction elements into a list so we can run across them if not hasattr(self, '_te_tuples'): self._te_tuples = [] for te in self.base.ts: n = te.N() a = te.A() v = te.V() r = te.R() e = te.E() if e is None: e = '0' if te.Type() == 1: t = 'install' elif te.Type() == 2: t = 'erase' else: t = te.Type() # save this in a list self._te_tuples.append((t,e,n,v,r,a)) # write to a file self._ts_time = time.strftime('%Y-%m-%d.%H:%M.%S') tsfn = '%s/transaction-all.%s' % (self.base.conf.persistdir, self._ts_time) self.ts_all_fn = tsfn tsfn = self._fn_rm_installroot(tsfn) try: if not os.path.exists(os.path.dirname(tsfn)): os.makedirs(os.path.dirname(tsfn)) # make the dir, fo = open(tsfn, 'w') except (IOError, OSError), e: self.display.errorlog('could not open ts_all file: %s' % e) self._ts_done = None return try: for (t,e,n,v,r,a) in self._te_tuples: msg = "%s %s:%s-%s-%s.%s\n" % (t,e,n,v,r,a) fo.write(msg) fo.flush() fo.close() except (IOError, OSError), e: # Having incomplete transactions is probably worse than having # nothing. self.display.errorlog('could not write to ts_all file: %s' % e) misc.unlink_f(tsfn) self._ts_done = None def callback( self, what, bytes, total, h, user ): if what == rpm.RPMCALLBACK_TRANS_START: self._transStart( bytes, total, h ) elif what == rpm.RPMCALLBACK_TRANS_PROGRESS: self._transProgress( bytes, total, h ) elif what == rpm.RPMCALLBACK_TRANS_STOP: self._transStop( bytes, total, h ) elif what == rpm.RPMCALLBACK_INST_OPEN_FILE: return self._instOpenFile( bytes, total, h ) elif what == rpm.RPMCALLBACK_INST_CLOSE_FILE: self._instCloseFile( bytes, total, h ) elif what == rpm.RPMCALLBACK_INST_PROGRESS: self._instProgress( bytes, total, h ) elif what == rpm.RPMCALLBACK_UNINST_START: self._unInstStart( bytes, total, h ) elif what == rpm.RPMCALLBACK_UNINST_PROGRESS: self._unInstProgress( bytes, total, h ) elif what == rpm.RPMCALLBACK_UNINST_STOP: self._unInstStop( bytes, total, h ) elif what == rpm.RPMCALLBACK_REPACKAGE_START: self._rePackageStart( bytes, total, h ) elif what == rpm.RPMCALLBACK_REPACKAGE_STOP: self._rePackageStop( bytes, total, h ) elif what == rpm.RPMCALLBACK_REPACKAGE_PROGRESS: self._rePackageProgress( bytes, total, h ) elif what == rpm.RPMCALLBACK_CPIO_ERROR: self._cpioError(bytes, total, h) elif what == rpm.RPMCALLBACK_UNPACK_ERROR: self._unpackError(bytes, total, h) # SCRIPT_ERROR is only in rpm >= 4.6.0 elif hasattr(rpm, "RPMCALLBACK_SCRIPT_ERROR") and what == rpm.RPMCALLBACK_SCRIPT_ERROR: self._scriptError(bytes, total, h) # SCRIPT_START and SCRIPT_STOP are only in rpm >= 4.10 elif hasattr(rpm, "RPMCALLBACK_SCRIPT_START") and what == rpm.RPMCALLBACK_SCRIPT_START: self._scriptStart(bytes, total, h); elif hasattr(rpm, "RPMCALLBACK_SCRIPT_STOP") and what == rpm.RPMCALLBACK_SCRIPT_STOP: self._scriptStop(bytes, total, h); def _transStart(self, bytes, total, h): self.total_actions = total if self.test: return self.trans_running = True self.ts_all() # write out what transaction will do self.ts_done_open() def _transProgress(self, bytes, total, h): pass def _transStop(self, bytes, total, h): pass def _instOpenFile(self, bytes, total, h): self.lastmsg = None name, txmbr = self._getTxmbr(h) if txmbr is not None: rpmloc = txmbr.po.localPkg() try: self.fd = file(rpmloc) except IOError, e: self.display.errorlog("Error: Cannot open file %s: %s" % (rpmloc, e)) else: if self.trans_running: self.total_installed += 1 self.complete_actions += 1 self.installed_pkg_names.add(name) return self.fd.fileno() else: self.display.errorlog("Error: No Header to INST_OPEN_FILE") def _instCloseFile(self, bytes, total, h): name, txmbr = self._getTxmbr(h) if txmbr is not None: self.fd.close() self.fd = None if self.test: return if self.trans_running: self.display.filelog(txmbr.po, txmbr.output_state) self._scriptout(txmbr.po) pid = self.base.history.pkg2pid(txmbr.po) state = self.base.history.txmbr2state(txmbr) self.base.history.trans_data_pid_end(pid, state) self.ts_done(txmbr.po, txmbr.output_state) def _instProgress(self, bytes, total, h): name, txmbr = self._getTxmbr(h) if name is not None: # If we only have a name, we're repackaging. # Why the RPMCALLBACK_REPACKAGE_PROGRESS flag isn't set, I have no idea if txmbr is None: self.display.event(name, 'repackaging', bytes, total, self.complete_actions, self.total_actions) else: action = txmbr.output_state self.display.event(txmbr.po, action, bytes, total, self.complete_actions, self.total_actions) def _unInstStart(self, bytes, total, h): pass def _unInstProgress(self, bytes, total, h): pass def _unInstStop(self, bytes, total, h): name, txmbr = self._getTxmbr(h, erase=True) self.total_removed += 1 self.complete_actions += 1 if name not in self.installed_pkg_names: if txmbr is not None: self.display.filelog(txmbr.po, TS_ERASE) else: self.display.filelog(name, TS_ERASE) action = TS_ERASE else: action = TS_UPDATED # FIXME: Do we want to pass txmbr.po here too? self.display.event(name, action, 100, 100, self.complete_actions, self.total_actions) if self.test: return # and we're done if txmbr is not None: self._scriptout(txmbr.po) # Note that we are currently inside the chroot, which makes # sqlite panic when it tries to open it's journal file. # So let's have some "fun" and workaround that: _do_chroot = False if _do_chroot and self.base.conf.installroot != '/': os.chroot(".") pid = self.base.history.pkg2pid(txmbr.po) state = self.base.history.txmbr2state(txmbr) self.base.history.trans_data_pid_end(pid, state) if _do_chroot and self.base.conf.installroot != '/': os.chroot(self.base.conf.installroot) self.ts_done(txmbr.po, txmbr.output_state) else: self._scriptout(name) self.ts_done(name, action) def _rePackageStart(self, bytes, total, h): pass def _rePackageStop(self, bytes, total, h): pass def _rePackageProgress(self, bytes, total, h): pass def _cpioError(self, bytes, total, h): name, txmbr = self._getTxmbr(h) # In the case of a remove, we only have a name, not a txmbr if txmbr is not None: msg = "Error in cpio payload of rpm package %s" % txmbr.po txmbr.output_state = TS_FAILED self.display.errorlog(msg) # FIXME - what else should we do here? raise a failure and abort? def _unpackError(self, bytes, total, h): name, txmbr = self._getTxmbr(h) # In the case of a remove, we only have a name, not a txmbr if txmbr is not None: txmbr.output_state = TS_FAILED msg = "Error unpacking rpm package %s" % txmbr.po self.display.errorlog(msg) # FIXME - should we raise? I need a test case pkg to see what the # right behavior should be def _scriptError(self, bytes, total, h): # "bytes" carries the failed scriptlet tag, # "total" carries fatal/non-fatal status scriptlet_name = rpm.tagnames.get(bytes, "<unknown>") name, txmbr = self._getTxmbr(h, erase=True) if txmbr is None: package_name = name else: package_name = txmbr.po if total: msg = ("Error in %s scriptlet in rpm package %s" % (scriptlet_name, package_name)) # In the case of a remove, we only have a name, not a txmbr if txmbr is not None: txmbr.output_state = TS_FAILED else: msg = ("Non-fatal %s scriptlet failure in rpm package %s" % (scriptlet_name, package_name)) self.display.errorlog(msg) self._scriptout(package_name) # FIXME - what else should we do here? raise a failure and abort? def _scriptStart(self, bytes, total, h): pass def _scriptStop(self, bytes, total, h): name, txmbr = self._getTxmbr(h) self._scriptout(txmbr or name) def verify_txmbr(self, txmbr, count): " Callback for post transaction when we are in verifyTransaction(). " if not hasattr(self.display, 'verify_txmbr'): return self.display.verify_txmbr(self.base, txmbr, count)
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