def __check_last_refresh(self):
"""Reads the cache if possible; if it isn't stale or corrupt
or out of date, return whether updates are available.
Otherwise return 'undetermined'."""
cache_dir = nongui_misc.get_cache_dir(self.api_obj)
if not cache_dir:
return enumerations.UPDATES_UNDETERMINED
try:
info = nongui_misc.read_cache_file(os.path.join(
cache_dir, CACHE_NAME + '.cpl'))
if len(info) == 0:
logger.debug("No cache")
return enumerations.UPDATES_UNDETERMINED
# Non-portable API used; pylint: disable=E0901
utsname = os.uname()
# pylint: disable=E1103
if info.get("version") != CACHE_VERSION:
logger.debug("Cache version mismatch: %s" %
(info.get("version") + " " + CACHE_VERSION))
return enumerations.UPDATES_UNDETERMINED
if info.get("os_release") != utsname[2]:
logger.debug("OS release mismatch: %s" %
(info.get("os_release") + " " + utsname[2]))
return enumerations.UPDATES_UNDETERMINED
if info.get("os_version") != utsname[3]:
logger.debug("OS version mismatch: %s" %
(info.get("os_version") + " " + utsname[3]))
return enumerations.UPDATES_UNDETERMINED
old_publishers = info.get("publishers")
count = 0
for p in self.api_obj.get_publishers():
if p.disabled:
continue
if old_publishers.get(p.prefix, -1) != \
p.last_refreshed:
return enumerations.UPDATES_UNDETERMINED
count += 1
if count != len(old_publishers):
return enumerations.UPDATES_UNDETERMINED
n_updates = n_installs = n_removes = 0
if info.get("updates_available"):
n_updates = info.get("updates")
n_installs = info.get("installs")
n_removes = info.get("removes")
# pylint: enable=E1103
if self.check_cache_only:
print "n_updates: %d" % n_updates
print "n_installs: %d" % n_installs
print "n_removes: %d" % n_removes
if (n_updates + n_installs + n_removes) > 0:
return enumerations.UPDATES_AVAILABLE
else:
return enumerations.NO_UPDATES_AVAILABLE
except (UnpicklingError, IOError):
return enumerations.UPDATES_UNDETERMINED
def __dump_updates_available(self, stuff_to_do):
cache_dir = nongui_misc.get_cache_dir(self.api_obj)
if not cache_dir:
return
publisher_list = {}
for p in self.api_obj.get_publishers():
if p.disabled:
continue
publisher_list[p.prefix] = p.last_refreshed
n_installs = 0
n_removes = 0
n_updates = 0
plan_desc = self.api_obj.describe()
if plan_desc:
plan = plan_desc.get_changes()
for pkg_plan in plan:
orig = pkg_plan[0]
dest = pkg_plan[1]
if orig and dest:
n_updates += 1
elif not orig and dest:
n_installs += 1
elif orig and not dest:
n_removes += 1
dump_info = {}
dump_info["version"] = CACHE_VERSION
dump_info["os_release"] = os.uname()[2]
dump_info["os_version"] = os.uname()[3]
dump_info["updates_available"] = stuff_to_do
dump_info["publishers"] = publisher_list
dump_info["updates"] = n_updates
dump_info["installs"] = n_installs
dump_info["removes"] = n_removes
try:
nongui_misc.dump_cache_file(
os.path.join(cache_dir, CACHE_NAME + '.cpl'), dump_info)
except IOError, e:
err = str(e)
if debug:
print >> sys.stderr, "Failed to dump cache: %s" % err
logger.error(err)
def __dump_updates_available(self, stuff_to_do):
"""Record update information to the cache file."""
cache_dir = nongui_misc.get_cache_dir(self.api_obj)
if not cache_dir:
return
publisher_list = {}
for p in self.api_obj.get_publishers():
if p.disabled:
continue
publisher_list[p.prefix] = p.last_refreshed
n_installs = 0
n_removes = 0
n_updates = 0
plan_desc = self.api_obj.describe()
if plan_desc:
plan = plan_desc.get_changes()
for (orig, dest) in plan:
if orig and dest:
n_updates += 1
elif not orig and dest:
n_installs += 1
elif orig and not dest:
n_removes += 1
dump_info = {}
dump_info["version"] = CACHE_VERSION
# Non-portable API used; pylint: disable=E0901
dump_info["os_release"] = os.uname()[2]
dump_info["os_version"] = os.uname()[3]
dump_info["updates_available"] = stuff_to_do
dump_info["publishers"] = publisher_list
dump_info["updates"] = n_updates
dump_info["installs"] = n_installs
dump_info["removes"] = n_removes
try:
nongui_misc.dump_cache_file(os.path.join(
cache_dir, CACHE_NAME + '.cpl'), dump_info)
except IOError, e:
logger.error("Failed to dump cache: %s" % e)
def __get_cache_dir(self):
return nongui_misc.get_cache_dir(self.api_o)
def __get_cache_dir(self):
return nongui_misc.get_cache_dir(self.api_o)
def __check_last_refresh(self):
cache_dir = nongui_misc.get_cache_dir(self.api_obj)
if not cache_dir:
return enumerations.UPDATES_UNDETERMINED
try:
info = nongui_misc.read_cache_file(
os.path.join(cache_dir, CACHE_NAME + '.cpl'))
if len(info) == 0:
if debug:
print >> sys.stderr, "No cache"
return enumerations.UPDATES_UNDETERMINED
# pylint: disable-msg=E1103
if info.get("version") != CACHE_VERSION:
if debug:
print >> sys.stderr, "Cache version mismatch: %s"\
% (info.get("version") + " " + CACHE_VERSION)
return enumerations.UPDATES_UNDETERMINED
if info.get("os_release") != os.uname()[2]:
if debug:
print >> sys.stderr, "OS release mismatch: %s"\
% (info.get("os_release") + " " + \
os.uname()[2])
return enumerations.UPDATES_UNDETERMINED
if info.get("os_version") != os.uname()[3]:
if debug:
print >> sys.stderr, "OS version mismatch: %s"\
% (info.get("os_version") + " " + \
os.uname()[3])
return enumerations.UPDATES_UNDETERMINED
old_publishers = info.get("publishers")
count = 0
for p in self.api_obj.get_publishers():
if p.disabled:
continue
try:
if old_publishers[p.prefix] != p.last_refreshed:
return enumerations.UPDATES_UNDETERMINED
except KeyError:
return enumerations.UPDATES_UNDETERMINED
count += 1
if count != len(old_publishers):
return enumerations.UPDATES_UNDETERMINED
n_updates = 0
n_installs = 0
n_removes = 0
if info.get("updates_available"):
n_updates = info.get("updates")
n_installs = info.get("installs")
n_removes = info.get("removes")
# pylint: enable-msg=E1103
if self.check_cache_only:
print "n_updates: %d\nn_installs: %d\nn_removes: %d" % \
(n_updates, n_installs, n_removes)
if (n_updates + n_installs + n_removes) > 0:
return enumerations.UPDATES_AVAILABLE
else:
return enumerations.NO_UPDATES_AVAILABLE
except (UnpicklingError, IOError):
return enumerations.UPDATES_UNDETERMINED
