def can_create_file(value, nochroot=False):
value = parent_is_dir(value)
path = get_real_path(value, nochroot)
if os.path.isdir(path):
raise ValueError, _('Path is a directory')
return value
def can_create_file (value, nochroot=False):
value = parent_is_dir (value)
path = get_real_path (value, nochroot)
if os.path.isdir(path):
raise ValueError, _('Path is a directory')
return value
def is_local_file_exists(value, nochroot=False):
value = is_path(value)
path = get_real_path(value, nochroot)
if not os.path.exists(path):
raise ValueError, _('Path does not exist')
if not os.path.isfile(path):
raise ValueError, _('Path is not a regular file')
return value
def is_local_dir_exists(value, nochroot=False):
value = is_path(value)
path = get_real_path(value, nochroot)
if not os.path.exists(path):
raise ValueError, _('Path does not exist')
if not os.path.isdir(path):
raise ValueError, _('Path is not a directory')
return value
def is_local_file_exists (value, nochroot=False):
value = is_path (value)
path = get_real_path (value, nochroot)
if not os.path.exists(path):
raise ValueError, _('Path does not exist')
if not os.path.isfile(path):
raise ValueError, _('Path is not a regular file')
return value
def is_local_dir_exists (value, nochroot=False):
value = is_path (value)
path = get_real_path (value, nochroot)
if not os.path.exists(path):
raise ValueError, _('Path does not exist')
if not os.path.isdir(path):
raise ValueError, _('Path is not a directory')
return value
def _is_valid_multipath_device(sid):
# Check if device is already multipathed
(ret, stdout, stderr) = util.doexec(['/usr/sbin/multipath', '-ll', sid])
if not stdout + stderr:
(ret, stdout, stderr) = util.doexec(['/usr/sbin/multipath', '-a', sid])
if ret == 1:
util.SMlog("Failed to add {}: wwid could be explicitly "
"blacklisted\n Continue with multipath disabled for "
"this SR".format(sid))
return False
by_scsid_path = "/dev/disk/by-scsid/" + sid
if os.path.exists(by_scsid_path):
devs = os.listdir(by_scsid_path)
else:
util.SMlog(
"Device {} is not ready yet, skipping multipath check".format(
by_scsid_path))
return False
ret = 1
# Some paths might be down, check all associated devices
for dev in devs:
devpath = os.path.join(by_scsid_path, dev)
real_path = util.get_real_path(devpath)
(ret, stdout,
stderr) = util.doexec(['/usr/sbin/multipath', '-c', real_path])
if ret == 0:
break
if ret == 1:
# This is very fragile but it is not a good sign to fail without
# any output. At least until multipath 0.4.9, for example,
# multipath -c fails without any log if it is able to retrieve the
# wwid of the device.
# In this case it is better to fail immediately.
if not stdout + stderr:
# Attempt to cleanup wwids file before raising
try:
(ret, stdout,
stderr) = util.doexec(['/usr/sbin/multipath', '-w', sid])
except OSError:
util.SMlog("Error removing {} from wwids file".format(sid))
raise xs_errors.XenError(
'MultipathGenericFailure',
'"multipath -c" failed without any'
' output on {}'.format(real_path))
util.SMlog(
"When dealing with {} multipath status returned:\n "
"{}{} Continue with multipath disabled for this SR".format(
sid, stdout, stderr))
return False
return True
def preview(self):
if not self.check_form():
return False
try:
real_path = util.get_real_path(self.git_edit.text(),
self.branch_edit.text(),
self.base_edit.text())
except Exception:
msg_box = Qt.QMessageBox(Qt.QMessageBox.Warning, '警告',
'预览出现异常，请检查输入参数')
msg_box.exec_()
return False
self.real_edit.setText(real_path)
return True
def setParent(path, parentPath, parentRaw):
realPPath = util.get_real_path(parentPath)
cmd = [VHD_UTIL, "modify", OPT_LOG_ERR, "-p", realPPath, "-n", path]
if parentRaw:
cmd.append("-m")
ioretry(cmd)
def setParent(path, parentPath, parentRaw):
realPPath = util.get_real_path(parentPath)
cmd = [VHD_UTIL, "modify", OPT_LOG_ERR, "-p", realPPath, "-n", path]
if parentRaw:
cmd.append("-m")
ioretry(cmd)