278 lines
9.2 KiB
Python
278 lines
9.2 KiB
Python
# Copyright (C) 2006, 2014 Red Hat, Inc.
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# Copyright (C) 2006 Daniel P. Berrange <berrange@redhat.com>
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#
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# This work is licensed under the GNU GPLv2 or later.
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# See the COPYING file in the top-level directory.
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import argparse
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import os
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import signal
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import sys
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import traceback
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import gi
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gi.require_version("Gdk", "3.0")
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gi.require_version("Gtk", "3.0")
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gi.require_version('LibvirtGLib', '1.0')
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from gi.repository import LibvirtGLib
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from virtinst import BuildConfig
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from virtinst import cli
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from virtinst import log
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from .lib.testmock import CLITestOptionsClass
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# pygobject commit that I believe universally changed bool arguments
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# to handle passed None. Without this, None usage keeps slipping into
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# the code, so add the requirement.
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# https://github.com/GNOME/pygobject/commit/6c69fc7b582ec1fd3faef4de3fade9a0cb7f8c05
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_PYGOBJECT_VERSION = "3.31.3"
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try:
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gi.check_version(_PYGOBJECT_VERSION)
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except (ValueError, AttributeError): # pragma: no cover
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print("pygobject3 %s or later is required." % _PYGOBJECT_VERSION)
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sys.exit(1)
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def _show_startup_error(msg, details):
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log.debug("Error starting virt-manager: %s\n%s", msg, details,
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exc_info=True)
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from .error import vmmErrorDialog
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err = vmmErrorDialog.get_instance()
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title = _("Error starting Virtual Machine Manager")
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errmsg = (_("Error starting Virtual Machine Manager: %(error)s") %
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{"error": msg})
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err.show_err(errmsg,
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details=details,
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title=title,
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modal=True,
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debug=False)
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def _import_gtk(leftovers):
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# The never ending fork+gsettings problems now require us to
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# import Gtk _after_ the fork. This creates a funny race, since we
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# need to parse the command line arguments to know if we need to
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# fork, but need to import Gtk before cli processing so it can
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# handle --g-fatal-args. We strip out our flags first and pass the
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# left overs to gtk
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origargv = sys.argv
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try:
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sys.argv = origargv[:1] + leftovers[:]
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from gi.repository import Gtk
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leftovers = sys.argv[1:]
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if Gtk.check_version(3, 22, 0): # pragma: no cover
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print("gtk3 3.22.0 or later is required.")
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sys.exit(1)
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# This will error if Gtk wasn't correctly initialized
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Gtk.init()
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globals()["Gtk"] = Gtk
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# This ensures we can init gsettings correctly
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from . import config
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ignore = config
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finally:
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sys.argv = origargv
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return leftovers
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def _setup_gsettings_path(schemadir):
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"""
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If running from the virt-manager.git srcdir, compile our gsettings
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schema and use it directly
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"""
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import subprocess
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import shutil
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exe = shutil.which("glib-compile-schemas")
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if not exe: # pragma: no cover
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raise RuntimeError("You must install glib-compile-schemas to run "
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"virt-manager from git.")
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subprocess.check_call([exe, "--strict", schemadir])
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def drop_tty():
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# We fork and setsid so that we drop the controlling
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# tty. This prevents libvirt's SSH tunnels from prompting
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# for user input if SSH keys/agent aren't configured.
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if os.fork() != 0:
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# pylint: disable=protected-access
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os._exit(0) # pragma: no cover
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os.setsid()
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def drop_stdio():
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# This is part of the fork process described in drop_tty()
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for fd in range(0, 2):
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try:
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os.close(fd)
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except OSError: # pragma: no cover
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pass
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os.open(os.devnull, os.O_RDWR)
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os.dup2(0, 1)
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os.dup2(0, 2)
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def parse_commandline():
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epilog = ("Also accepts standard GTK arguments like --g-fatal-warnings")
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parser = argparse.ArgumentParser(usage="virt-manager [options]",
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epilog=epilog)
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parser.add_argument('--version', action='version',
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version=BuildConfig.version)
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parser.set_defaults(domain=None)
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# Trace every libvirt API call to debug output
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parser.add_argument("--trace-libvirt", choices=["all", "mainloop"],
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help=argparse.SUPPRESS)
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# comma separated string of options to tweak app behavior,
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# for manual and automated testing config
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parser.add_argument("--test-options", action='append',
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default=[], help=argparse.SUPPRESS)
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parser.add_argument("-c", "--connect", dest="uri",
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help="Connect to hypervisor at URI", metavar="URI")
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parser.add_argument("--debug", action="store_true",
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help="Print debug output to stdout (implies --no-fork)",
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default=False)
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parser.add_argument("--no-fork", action="store_true",
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help="Don't fork into background on startup")
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parser.add_argument("--show-domain-creator", action="store_true",
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help="Show 'New VM' wizard")
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parser.add_argument("--show-domain-editor", metavar="NAME|ID|UUID",
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help="Show domain details window")
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parser.add_argument("--show-domain-performance", metavar="NAME|ID|UUID",
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help="Show domain performance window")
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parser.add_argument("--show-domain-console", metavar="NAME|ID|UUID",
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help="Show domain graphical console window")
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parser.add_argument("--show-domain-delete", metavar="NAME|ID|UUID",
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help="Show domain delete window")
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parser.add_argument("--show-host-summary", action="store_true",
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help="Show connection details window")
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return parser.parse_known_args()
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def main():
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(options, leftovers) = parse_commandline()
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cli.setupLogging("virt-manager", options.debug, False, False)
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log.debug("virt-manager version: %s", BuildConfig.version)
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log.debug("virtManager import: %s", os.path.dirname(__file__))
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if BuildConfig.running_from_srcdir:
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_setup_gsettings_path(BuildConfig.gsettings_dir)
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if options.trace_libvirt:
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log.debug("Libvirt tracing requested")
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from .lib import module_trace
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import libvirt
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module_trace.wrap_module(libvirt,
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mainloop=(options.trace_libvirt == "mainloop"),
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regex=None)
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CLITestOptions = CLITestOptionsClass(options.test_options)
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# With F27 gnome+wayland we need to set these before GTK import
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os.environ["GSETTINGS_SCHEMA_DIR"] = BuildConfig.gsettings_dir
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# Now we've got basic environment up & running we can fork
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do_drop_stdio = False
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if not options.no_fork and not options.debug:
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drop_tty()
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do_drop_stdio = True
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# Ignore SIGHUP, otherwise a serial console closing drops the whole app
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signal.signal(signal.SIGHUP, signal.SIG_IGN)
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leftovers = _import_gtk(leftovers)
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Gtk = globals()["Gtk"]
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# Do this after the Gtk import so the user has a chance of seeing any error
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if do_drop_stdio:
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drop_stdio()
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if leftovers:
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raise RuntimeError("Unhandled command line options '%s'" % leftovers)
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log.debug("PyGObject version: %d.%d.%d",
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gi.version_info[0],
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gi.version_info[1],
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gi.version_info[2])
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log.debug("GTK version: %d.%d.%d",
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Gtk.get_major_version(),
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Gtk.get_minor_version(),
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Gtk.get_micro_version())
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# Prime the vmmConfig cache
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from . import config
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config.vmmConfig.get_instance(BuildConfig, CLITestOptions)
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# Add our icon dir to icon theme
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icon_theme = Gtk.IconTheme.get_default()
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icon_theme.prepend_search_path(BuildConfig.icon_dir)
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from .engine import vmmEngine
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Gtk.Window.set_default_icon_name("virt-manager")
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show_window = None
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domain = None
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if options.show_domain_creator:
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show_window = vmmEngine.CLI_SHOW_DOMAIN_CREATOR
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elif options.show_host_summary:
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show_window = vmmEngine.CLI_SHOW_HOST_SUMMARY
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elif options.show_domain_editor:
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show_window = vmmEngine.CLI_SHOW_DOMAIN_EDITOR
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domain = options.show_domain_editor
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elif options.show_domain_performance:
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show_window = vmmEngine.CLI_SHOW_DOMAIN_PERFORMANCE
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domain = options.show_domain_performance
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elif options.show_domain_console:
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show_window = vmmEngine.CLI_SHOW_DOMAIN_CONSOLE
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domain = options.show_domain_console
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elif options.show_domain_delete:
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show_window = vmmEngine.CLI_SHOW_DOMAIN_DELETE
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domain = options.show_domain_delete
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if show_window and options.uri is None: # pragma: no cover
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raise RuntimeError("can't use --show-* options without --connect")
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skip_autostart = False
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if show_window:
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skip_autostart = True
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# Hook libvirt events into glib main loop
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LibvirtGLib.init(None)
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LibvirtGLib.event_register()
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engine = vmmEngine.get_instance()
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# Actually exit when we receive ctrl-c
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from gi.repository import GLib
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def _sigint_handler(user_data):
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ignore = user_data
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log.debug("Received KeyboardInterrupt. Exiting application.")
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engine.exit_app()
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GLib.unix_signal_add(GLib.PRIORITY_DEFAULT, signal.SIGINT,
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_sigint_handler, None)
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engine.start(options.uri, show_window, domain, skip_autostart)
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def runcli():
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try:
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main()
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except KeyboardInterrupt: # pragma: no cover
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log.debug("Received KeyboardInterrupt. Exiting application.")
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except Exception as run_e:
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if "Gtk" not in globals():
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raise # pragma: no cover
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_show_startup_error(str(run_e), "".join(traceback.format_exc()))
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