def refresh_pacman_databases(self):
""" Updates pacman databases """
# Init pyalpm
try:
pacman = pac.Pac("/etc/pacman.conf", self.callback_queue)
except Exception as ex:
template = "Can't initialize pyalpm. An exception of type {0} occured. Arguments:\n{1!r}"
message = template.format(type(ex).__name__, ex.args)
logging.error(message)
raise InstallError(message)
# Refresh pacman databases
if not pacman.refresh():
logging.error("Can't refresh pacman databases.")
txt = _("Can't refresh pacman databases.")
raise InstallError(txt)
try:
pacman.release()
del pacman
except Exception as ex:
template = "Can't release pyalpm. An exception of type {0} occured. Arguments:\n{1!r}"
message = template.format(type(ex).__name__, ex.args)
logging.error(message)
raise InstallError(message)
def initialize_alpm(self):
try:
self.alpm = pac.Pac()
logging.debug("Alpm library initialized")
except Exception as err:
logging.error("Cannot initialize alpm library")
sys.exit(-1)
def prepare_pacman(self):
""" Configures pacman and syncs db on destination system """
self.create_pacman_conf_file()
self.prepare_pacman_keyring()
# Init pyalpm
try:
self.pacman = pac.Pac("/tmp/pacman.conf", self.callback_queue)
except Exception:
self.pacman = None
logging.error("Can't initialize pyalpm.")
raise InstallError(_("Can't initialize pyalpm."))
# Refresh pacman databases
if not self.pacman.refresh():
logging.error("Can't refresh pacman databases.")
raise InstallError(_("Can't refresh pacman databases."))
def refresh_pacman_databases(self):
# Init pyalpm
try:
pacman = pac.Pac("/etc/pacman.conf", self.callback_queue)
except Exception:
logging.error("Can't initialize pyalpm.")
raise InstallError(_("Can't initialize pyalpm."))
# Refresh pacman databases
if not pacman.refresh():
logging.error("Can't refresh pacman databases.")
txt = _("Can't refresh pacman databases.")
raise InstallError(txt)
try:
pacman.release()
del pacman
except Exception as err:
logging.error("Can't release pyalpm: %s", err)
txt = _("Can't release pyalpm: {0}").format(err)
raise InstallError()
def create_metalinks_list(self):
""" Creates a downloads list (metalinks) from the package list """
self.queue_event('percent', '0')
self.queue_event('info',
_('Creating the list of packages to download...'))
processed_packages = 0
total_packages = len(self.package_names)
self.metalinks = {}
try:
pacman = pac.Pac(conf_path=self.pacman_conf_file,
callback_queue=self.callback_queue)
if pacman is None:
return None
except Exception as ex:
self.metalinks = None
template = "Can't initialize pyalpm. An exception of type {0} occured. Arguments:\n{1!r}"
message = template.format(type(ex).__name__, ex.args)
logging.error(message)
return
try:
for package_name in self.package_names:
metalink = ml.create(pacman, package_name,
self.pacman_conf_file)
if metalink is None:
txt = "Error creating metalink for package %s. Installation will stop"
logging.error(txt, package_name)
txt = _("Error creating metalink for package {0}. "
"Installation will stop").format(package_name)
raise misc.InstallError(txt)
# Get metalink info
metalink_info = ml.get_info(metalink)
# Update downloads list with the new info from
# the processed metalink
for key in metalink_info:
if key not in self.metalinks:
self.metalinks[key] = metalink_info[key]
urls = metalink_info[key]['urls']
if self.settings:
# Sort urls based on the mirrorlist
# we created earlier
sorted_urls = sorted(urls,
key=self.url_sort_helper)
self.metalinks[key]['urls'] = sorted_urls
else:
# When testing, settings is not available
self.metalinks[key]['urls'] = urls
# Show progress to the user
processed_packages += 1
percent = round(float(processed_packages / total_packages), 2)
self.queue_event('percent', str(percent))
except Exception as ex:
template = "Can't create download set. An exception of type {0} occured. Arguments:\n{1!r}"
message = template.format(type(ex).__name__, ex.args)
logging.error(message)
self.metalinks = None
return
try:
pacman.release()
del pacman
except Exception as ex:
self.metalinks = None
template = "Can't release pyalpm. An exception of type {0} occured. Arguments:\n{1!r}"
message = template.format(type(ex).__name__, ex.args)
logging.error(message)
return
# Overwrite last event (to clean up the last message)
self.queue_event('info', "")
def create_metalinks_list(self):
""" Creates a downloads list (metalinks) from the package list """
self.queue_event('percent', '0')
self.queue_event('info',
_('Creating the list of packages to download...'))
processed_packages = 0
total_packages = len(self.package_names)
self.metalinks = {}
try:
pacman = pac.Pac(conf_path=self.pacman_conf_file,
callback_queue=self.callback_queue)
if pacman is None:
return None
except Exception as err:
logging.error("Can't initialize pyalpm: %s", err)
self.metalinks = None
return
try:
for package_name in self.package_names:
metalink = ml.create(pacman, package_name,
self.pacman_conf_file)
if metalink is None:
logging.error(
"Error creating metalink for package %s. Installation will stop",
package_name)
txt = _(
"Error creating metalink for package {0}. Installation will stop"
).format(package_name)
raise misc.InstallError(txt)
# Get metalink info
metalink_info = ml.get_info(metalink)
# Update downloads list with the new info from the processed metalink
for key in metalink_info:
if key not in self.metalinks:
urls = metalink_info[key]['urls']
# Sort urls based on the mirrorlist we created earlier
sorted_urls = sorted(urls, key=self.url_sort_helper)
self.metalinks[key] = metalink_info[key]
# logging.debug(self.metalinks[key])
self.metalinks[key]['urls'] = sorted_urls
# logging.debug(self.metalinks[key])
# Show progress to the user
processed_packages += 1
percent = round(float(processed_packages / total_packages), 2)
self.queue_event('percent', str(percent))
except Exception as err:
logging.error("Can't create download set: %s", err)
self.metalinks = None
return
try:
pacman.release()
del pacman
except Exception as err:
logging.error("Can't release pyalpm: %s", err)
self.metalinks = None
return
# Overwrite last event (to clean up the last message)
self.queue_event('info', "")