def _check_for_updates(requirements, verbose, app):
"""@type requirements: L{zeroinstall.injector.requirements.Requirements}
@type verbose: bool
@type app: L{zeroinstall.apps.App}"""
if app is not None:
old_sels = app.get_selections()
from zeroinstall.injector.driver import Driver
from zeroinstall.injector.config import load_config
background_handler = BackgroundHandler(requirements.interface_uri,
requirements.interface_uri)
background_config = load_config(background_handler)
root_iface = background_config.iface_cache.get_interface(
requirements.interface_uri).get_name()
background_handler.title = root_iface
driver = Driver(config=background_config, requirements=requirements)
logger.info(_("Checking for updates to '%s' in a background process"),
root_iface)
if verbose:
background_handler.notify("Zero Install",
_("Checking for updates to '%s'...") %
root_iface,
timeout=1)
network_state = background_handler.get_network_state()
if network_state not in (_NetworkState.NM_STATE_CONNECTED_SITE,
_NetworkState.NM_STATE_CONNECTED_GLOBAL):
logger.info(
_("Not yet connected to network (status = %d). Sleeping for a bit..."
), network_state)
import time
time.sleep(120)
if network_state in (_NetworkState.NM_STATE_DISCONNECTED,
_NetworkState.NM_STATE_ASLEEP):
logger.info(_("Still not connected to network. Giving up."))
sys.exit(1)
else:
logger.info(_("NetworkManager says we're on-line. Good!"))
background_config.freshness = 0 # Don't bother trying to refresh when getting the interface
refresh = driver.solve_with_downloads(
force=True) # (causes confusing log messages)
tasks.wait_for_blocker(refresh)
if background_handler.need_gui or not driver.solver.ready or driver.get_uncached_implementations(
):
if verbose:
background_handler.notify(
"Zero Install",
_("Updates ready to download for '%s'.") % root_iface,
timeout=1)
# Run the GUI if possible...
from zeroinstall import helpers
gui_args = ['--refresh', '--systray', '--download'
] + requirements.get_as_options()
new_sels = helpers.get_selections_gui(requirements.interface_uri,
gui_args,
use_gui=None)
if new_sels is None:
sys.exit(0) # Cancelled by user
elif new_sels is helpers.DontUseGUI:
if not driver.solver.ready:
background_handler.notify("Zero Install",
_("Can't update '%s'") % root_iface)
sys.exit(1)
tasks.wait_for_blocker(driver.download_uncached_implementations())
new_sels = driver.solver.selections
if app is None:
background_handler.notify(
"Zero Install",
_("{name} updated.").format(name=root_iface),
timeout=1)
else:
if verbose:
background_handler.notify("Zero Install",
_("No updates to download."),
timeout=1)
new_sels = driver.solver.selections
if app is not None:
assert driver.solver.ready
from zeroinstall.support import xmltools
if not xmltools.nodes_equal(new_sels.toDOM(), old_sels.toDOM()):
app.set_selections(new_sels)
background_handler.notify(
"Zero Install",
_("{app} updated.").format(app=app.get_name()),
timeout=1)
app.set_last_checked()
sys.exit(0)
def _check_for_updates(requirements, verbose, app):
if app is not None:
old_sels = app.get_selections()
from zeroinstall.injector.driver import Driver
from zeroinstall.injector.config import load_config
background_handler = BackgroundHandler(requirements.interface_uri, requirements.interface_uri)
background_config = load_config(background_handler)
root_iface = background_config.iface_cache.get_interface(requirements.interface_uri).get_name()
background_handler.title = root_iface
driver = Driver(config = background_config, requirements = requirements)
logger.info(_("Checking for updates to '%s' in a background process"), root_iface)
if verbose:
background_handler.notify("Zero Install", _("Checking for updates to '%s'...") % root_iface, timeout = 1)
network_state = background_handler.get_network_state()
if network_state not in (_NetworkState.NM_STATE_CONNECTED_SITE, _NetworkState.NM_STATE_CONNECTED_GLOBAL):
logger.info(_("Not yet connected to network (status = %d). Sleeping for a bit..."), network_state)
import time
time.sleep(120)
if network_state in (_NetworkState.NM_STATE_DISCONNECTED, _NetworkState.NM_STATE_ASLEEP):
logger.info(_("Still not connected to network. Giving up."))
sys.exit(1)
else:
logger.info(_("NetworkManager says we're on-line. Good!"))
background_config.freshness = 0 # Don't bother trying to refresh when getting the interface
refresh = driver.solve_with_downloads(force = True) # (causes confusing log messages)
tasks.wait_for_blocker(refresh)
if background_handler.need_gui or driver.get_uncached_implementations():
if verbose:
background_handler.notify("Zero Install",
_("Updates ready to download for '%s'.") % root_iface,
timeout = 1)
# Run the GUI if possible...
from zeroinstall import helpers
gui_args = ['--refresh', '--systray', '--download'] + requirements.get_as_options()
new_sels = helpers.get_selections_gui(requirements.interface_uri, gui_args, use_gui = None)
if new_sels is None:
sys.exit(0) # Cancelled by user
elif new_sels is helpers.DontUseGUI:
tasks.wait_for_blocker(driver.download_uncached_implementations())
new_sels = driver.solver.selections
if app is None:
background_handler.notify("Zero Install",
_("{name} updated.").format(name = root_iface),
timeout = 1)
else:
if verbose:
background_handler.notify("Zero Install", _("No updates to download."), timeout = 1)
new_sels = driver.solver.selections
if app is not None:
assert driver.solver.ready
from zeroinstall.support import xmltools
if not xmltools.nodes_equal(new_sels.toDOM(), old_sels.toDOM()):
app.set_selections(new_sels)
background_handler.notify("Zero Install",
_("{app} updated.").format(app = app.get_name()),
timeout = 1)
app.set_last_checked()
sys.exit(0)
