def purge_data_nav(force=False):
"""
purge temp/data.nav.lz4 files
the whole process will be skipped as soon as a single condition is encountered:
- temp data file is more recent than actual data file
- temp data file exists but actual data file is missing
"""
if not force:
print("Checking lz4 temp files purge conditions before proceeding...")
reason = {}
for instance in env.instances.values():
plain_target = get_real_instance(instance).target_lz4_file
temp_target = os.path.join(os.path.dirname(plain_target), 'temp', os.path.basename(plain_target))
if exists(plain_target):
if exists(temp_target) and files.getmtime(temp_target) > files.getmtime(plain_target):
reason[instance.name] = "{} is more recent than {}".format(temp_target, plain_target)
elif exists(temp_target):
reason[instance.name] = "{} does not exists".format(plain_target)
if reason:
print(yellow("Error: Can't purge lz4 temp files, reasons:"))
for k, v in reason.iteritems():
print(" {}: {}".format(k, v))
exit(1)
for instance in env.instances.values():
plain_target = get_real_instance(instance).target_lz4_file
temp_target = os.path.join(os.path.dirname(plain_target), 'temp', os.path.basename(plain_target))
if exists(temp_target):
files.remove(temp_target)
def purge_data_nav(force=False):
"""
purge temp/data.nav.lz4 files
the whole process will be skipped as soon as a single condition is encountered:
- temp data file is more recent than actual data file
- temp data file exists but actual data file is missing
"""
if not force:
print("Checking lz4 temp files purge conditions before proceeding...")
reason = {}
for instance in env.instances.values():
plain_target = get_real_instance(instance).target_lz4_file
temp_target = os.path.join(os.path.dirname(plain_target), 'temp',
os.path.basename(plain_target))
if exists(plain_target):
if exists(temp_target) and files.getmtime(
temp_target) > files.getmtime(plain_target):
reason[instance.name] = "{} is more recent than {}".format(
temp_target, plain_target)
elif exists(temp_target):
reason[instance.name] = "{} does not exists".format(
plain_target)
if reason:
print(yellow("Error: Can't purge lz4 temp files, reasons:"))
for k, v in reason.iteritems():
print(" {}: {}".format(k, v))
exit(1)
for instance in env.instances.values():
plain_target = get_real_instance(instance).target_lz4_file
temp_target = os.path.join(os.path.dirname(plain_target), 'temp',
os.path.basename(plain_target))
if exists(temp_target):
files.remove(temp_target)
def swap_data_nav(instance, force=False):
""" swap old/new data.nav.lz4, only if new is still in temp directory
"""
plain_target = get_real_instance(instance).target_lz4_file
temp_target = os.path.join(os.path.dirname(plain_target), 'temp', os.path.basename(plain_target))
if exists(plain_target):
if exists(temp_target) and \
(force or (files.getmtime(temp_target) > files.getmtime(plain_target))):
swap_temp = os.path.join(os.path.dirname(temp_target), 'x')
files.move(plain_target, swap_temp)
files.move(temp_target, plain_target)
files.move(swap_temp, temp_target)
elif exists(temp_target):
files.move(temp_target, plain_target)
def swap_data_nav(instance, force=False):
""" swap old/new data.nav.lz4, only if new is still in temp directory
"""
plain_target = get_real_instance(instance).target_lz4_file
temp_target = os.path.join(os.path.dirname(plain_target), 'temp', os.path.basename(plain_target))
if exists(plain_target):
if exists(temp_target) and \
(force or (files.getmtime(temp_target) > files.getmtime(plain_target))):
swap_temp = os.path.join(os.path.dirname(temp_target), 'x')
files.move(plain_target, swap_temp)
files.move(temp_target, plain_target)
files.move(swap_temp, temp_target)
elif exists(temp_target):
files.move(temp_target, plain_target)
def last_update_time():
"""
Return the time of last update-check.
(mtime of ``/var/lib/apt/periodic/update-success-stamp``)
Return ``-1`` if there was no update before.
Example::
import fabtools
print(fabtools.deb.last_update_time())
# 1377603808.02
"""
STAMP = '/var/lib/apt/periodic/update-success-stamp'
if not is_file(STAMP):
return -1
return getmtime(STAMP)
def last_update_time():
"""
Return the time of last update-check.
(mtime of ``/var/lib/apt/periodic/update-success-stamp``)
Return ``-1`` if there was no update before.
Example::
import fabtools
print(fabtools.deb.last_update_time())
# 1377603808.02
"""
STAMP = '/var/lib/apt/periodic/update-success-stamp'
if not is_file(STAMP):
return -1
return getmtime(STAMP)
def last_update_time():
"""
Get the time of last APT index update
This is the last modification time of ``/var/lib/apt/periodic/fabtools-update-success-stamp``.
Returns ``-1`` if there was no update before.
Example::
import fabtools
print(fabtools.deb.last_update_time())
# 1377603808.02
"""
STAMP = '/var/lib/apt/periodic/fabtools-update-success-stamp'
if not is_file(STAMP):
return -1
return getmtime(STAMP)