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# DistUpgradeViewText.py # # Copyright (c) 2004-2006 Canonical # # Author: Michael Vogt <michael.vogt@ubuntu.com> # # 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 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 import errno import sys import logging import subprocess from gettext import dgettext import apt import os from .DistUpgradeApport import run_apport, apport_crash from .DistUpgradeView import ( AcquireProgress, DistUpgradeView, ENCODING, InstallProgress, ) from .telemetry import get as get_telemetry import apt.progress import gettext from .DistUpgradeGettext import gettext as _ from .utils import twrap def readline(): """ py2/py3 compatible readline from stdin """ sys.stdout.flush() try: s = input() except EOFError: s = '' if hasattr(s, "decode"): return s.decode(ENCODING, "backslashreplace") return s class TextAcquireProgress(AcquireProgress, apt.progress.text.AcquireProgress): def __init__(self): apt.progress.text.AcquireProgress.__init__(self) AcquireProgress.__init__(self) def pulse(self, owner): apt.progress.text.AcquireProgress.pulse(self, owner) AcquireProgress.pulse(self, owner) return True class TextInstallProgress(InstallProgress): # percent step when progress is reported (to avoid screen spam) MIN_REPORTING = 5 def __init__(self, *args, **kwargs): super(TextInstallProgress, self).__init__(*args, **kwargs) self._prev_percent = 0 def status_change(self, pkg, percent, status): if self._prev_percent + self.MIN_REPORTING < percent: # FIXME: move into ubuntu-release-upgrader after trusty domain = "libapt-pkg4.12" progress_str = dgettext(domain, "Progress: [%3i%%]") % int(percent) sys.stdout.write("\r\n%s\r\n" % progress_str) self._prev_percent = percent class TextCdromProgressAdapter(apt.progress.base.CdromProgress): """ Report the cdrom add progress """ def update(self, text, step): """ update is called regularly so that the gui can be redrawn """ if text: print("%s (%f)" % (text, step.value/float(self.totalSteps)*100)) def ask_cdrom_name(self): return (False, "") def change_cdrom(self): return False class DistUpgradeViewText(DistUpgradeView): """ text frontend of the distUpgrade tool """ def __init__(self, datadir=None, logdir=None): # indicate that we benefit from using gnu screen self.needs_screen = True get_telemetry().set_updater_type('Text') # its important to have a debconf frontend for # packages like "quagga" if "DEBIAN_FRONTEND" not in os.environ: os.environ["DEBIAN_FRONTEND"] = "dialog" if not datadir or datadir == '.': localedir=os.path.join(os.getcwd(),"mo") else: localedir="/usr/share/locale/ubuntu-release-upgrader" try: gettext.bindtextdomain("ubuntu-release-upgrader", localedir) gettext.textdomain("ubuntu-release-upgrader") except Exception as e: logging.warning("Error setting locales (%s)" % e) self.last_step = None # keep a record of the latest step self._opCacheProgress = apt.progress.text.OpProgress() self._acquireProgress = TextAcquireProgress() self._cdromProgress = TextCdromProgressAdapter() self._installProgress = TextInstallProgress() sys.excepthook = self._handleException #self._process_events_tick = 0 def _handleException(self, type, value, tb): # we handle the exception here, hand it to apport and run the # apport gui manually after it because we kill u-n during the upgrade # to prevent it from poping up for reboot notifications or FF restart # notifications or somesuch import traceback print() lines = traceback.format_exception(type, value, tb) logging.error("not handled exception:\n%s" % "\n".join(lines)) apport_crash(type, value, tb) if not run_apport(): self.error(_("A fatal error occurred"), _("Please report this as a bug and include the " "files /var/log/dist-upgrade/main.log and " "/var/log/dist-upgrade/apt.log " "in your report. The upgrade has aborted.\n" "Your original sources.list was saved in " "/etc/apt/sources.list.distUpgrade."), "\n".join(lines)) sys.exit(1) def getAcquireProgress(self): return self._acquireProgress def getInstallProgress(self, cache): self._installProgress._cache = cache return self._installProgress def getOpCacheProgress(self): return self._opCacheProgress def getCdromProgress(self): return self._cdromProgress def updateStatus(self, msg): print() print(msg) sys.stdout.flush() def abort(self): print() print(_("Aborting")) def setStep(self, step): super(DistUpgradeViewText, self).setStep(step) self.last_step = step def showDemotions(self, summary, msg, demotions): self.information(summary, msg, _("Demoted:\n")+twrap(", ".join(demotions))) def information(self, summary, msg, extended_msg=None): print() print(twrap(summary)) print(twrap(msg)) if extended_msg: print(twrap(extended_msg)) print(_("To continue please press [ENTER]")) readline() def error(self, summary, msg, extended_msg=None): print() print(twrap(summary)) print(twrap(msg)) if extended_msg: print(twrap(extended_msg)) return False def showInPager(self, output): """ helper to show output in a pager """ # we need to send a encoded str (bytes in py3) to the pipe # LP: #1068389 if not isinstance(output, bytes): output = output.encode(ENCODING) for pager in ["/usr/bin/sensible-pager", "/bin/more"]: if os.path.exists(pager): p = subprocess.Popen([pager,"-"],stdin=subprocess.PIPE) # if lots of data is shown, we need to catch EPIPE try: p.stdin.write(output) p.stdin.close() p.wait() except IOError as e: if e.errno != errno.EPIPE: raise return # if we don't have a pager, just print print(output) def confirmChanges(self, summary, changes, demotions, downloadSize, actions=None, removal_bold=True): DistUpgradeView.confirmChanges(self, summary, changes, demotions, downloadSize, actions) print() print(twrap(summary)) print(twrap(self.confirmChangesMessage)) print(" %s %s" % (_("Continue [yN] "), _("Details [d]")), end="") while True: res = readline().strip().lower() # TRANSLATORS: the "y" is "yes" if res.startswith(_("y")): return True # TRANSLATORS: the "n" is "no" elif not res or res.startswith(_("n")): return False # TRANSLATORS: the "d" is "details" elif res.startswith(_("d")): output = "" if len(self.demotions) > 0: output += "\n" output += twrap( _("No longer supported: %s\n") % " ".join([p.name for p in self.demotions]), subsequent_indent=' ') if len(self.toRemove) > 0: output += "\n" output += twrap( _("Remove: %s\n") % " ".join([p.name for p in self.toRemove]), subsequent_indent=' ') if len(self.toRemoveAuto) > 0: output += twrap( _("Remove (was auto installed) %s") % " ".join([p.name for p in self.toRemoveAuto]), subsequent_indent=' ') output += "\n" if len(self.toInstall) > 0: output += "\n" output += twrap( _("Install: %s\n") % " ".join([p.name for p in self.toInstall]), subsequent_indent=' ') if len(self.toUpgrade) > 0: output += "\n" output += twrap( _("Upgrade: %s\n") % " ".join([p.name for p in self.toUpgrade]), subsequent_indent=' ') self.showInPager(output) print("%s %s" % (_("Continue [yN] "), _("Details [d]")), end="") def askYesNoQuestion(self, summary, msg, default='No'): print() if summary: print(twrap(summary)) print(twrap(msg)) if default == 'No': print(_("Continue [yN] "), end="") res = readline() # TRANSLATORS: first letter of a positive (yes) answer if res.strip().lower().startswith(_("y")): return True return False else: print(_("Continue [Yn] "), end="") res = readline() # TRANSLATORS: first letter of a negative (no) answer if res.strip().lower().startswith(_("n")): return False return True def askCancelContinueQuestion(self, summary, msg, default='Cancel'): return self.askYesNoQuestion(summary, msg, default='No' if default == 'Cancel' else 'Yes') # FIXME: when we need this most the resolver is writing debug logs # and we redirect stdout/stderr # def processEvents(self): # #time.sleep(0.2) # anim = [".","o","O","o"] # anim = ["\\","|","/","-","\\","|","/","-"] # self._process_events_tick += 1 # if self._process_events_tick >= len(anim): # self._process_events_tick = 0 # sys.stdout.write("[%s]" % anim[self._process_events_tick]) # sys.stdout.flush() def confirmRestart(self): return self.askYesNoQuestion(_("Restart required"), _("To finish the upgrade, a restart is " "required.\n" "If you select 'y' the system " "will be restarted."), default='No') if __name__ == "__main__": view = DistUpgradeViewText() #while True: # view.processEvents() print(twrap("89 packages are going to be upgraded.\nYou have to download a total of 82.7M.\nThis download will take about 10 minutes with a 1Mbit DSL connection and about 3 hours 12 minutes with a 56k modem.", subsequent_indent=" ")) #sys.exit(1) view = DistUpgradeViewText() print(view.askYesNoQuestion("hello", "Icecream?", "No")) print(view.askYesNoQuestion("hello", "Icecream?", "Yes")) #view.confirmChangesMessage = "89 packages are going to be upgraded.\n You have to download a total of 82.7M.\n This download will take about 10 minutes with a 1Mbit DSL connection and about 3 hours 12 minutes with a 56k modem." #view.confirmChanges("xx",[], 100) sys.exit(0) view.confirmRestart() cache = apt.Cache() fp = view.getAcquireProgress() ip = view.getInstallProgress(cache) for pkg in sys.argv[1:]: cache[pkg].mark_install() cache.commit(fp,ip) sys.exit(0) view.getTerminal().call(["/usr/bin/dpkg","--configure","-a"]) #view.getTerminal().call(["ls","-R","/usr"]) view.error("short","long", "asfds afsdj af asdf asdf asf dsa fadsf asdf as fasf sextended\n" "asfds afsdj af asdf asdf asf dsa fadsf asdf as fasf sextended\n" "asfds afsdj af asdf asdf asf dsa fadsf asdf as fasf sextended\n" "asfds afsdj af asdf asdf asf dsa fadsf asdf as fasf sextended\n" "asfds afsdj af asdf asdf asf dsa fadsf asdf as fasf sextended\n" "asfds afsdj af asdf asdf asf dsa fadsf asdf as fasf sextended\n" "asfds afsdj af asdf asdf asf dsa fadsf asdf as fasf sextended\n" ) view.confirmChanges("xx",[], 100) print(view.askYesNoQuestion("hello", "Icecream?"))