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"""hostutils module contains wrappers for commands that can be executed on any
host in the test environment
Supported Wrappers:
-------------------
*) rmdir
*) mkdir
*) mkfs
*) execute_command
"""
import re
from collections import namedtuple
import atfutils
from atfglobals import GlobalObj
import pdb
system_dirs = re.compile('(/bin|/boot|/dev|/etc|/lib|/mnt|/net|/opt|/root|/sbin|/usr|/var|/sys)\/?$')
def cd(hostkey, dirpath):
"""
"""
logger = GlobalObj.getLoggerObj()
base_command = "cd"
cm = GlobalObj.getConnectionsManagerObj()
host_connection = cm.getConnection(hostkey)
if not host_connection:
logger.error("SSH Connection Not established to host '%s' " % hostkey)
return 1
command = ' '.join([base_command, dirpath])
logger.debug('%s: Executing Command: %s' % (hostkey, command))
output = host_connection.executecommand(command)
return_status = atfutils.assert_success(output['exitstatus'])
atfutils.print_stdout(output['stdoutdata'])
atfutils.print_stderr(output['stderrdata'])
return return_status
def rmdir(hostkey, dirpath):
"""
"""
logger = GlobalObj.getLoggerObj()
base_command = "rm -rf"
cm = GlobalObj.getConnectionsManagerObj()
if system_dirs.match(dirpath):
logger.error("System Directiories cannot be deleted")
return 1
else:
host_connection = cm.getConnection(hostkey)
if not host_connection:
logger.error("SSH Connection Not established to host '%s' "
% hostkey)
return 1
command = ' '.join([base_command, dirpath])
logger.debug('%s: Executing Command: %s' % (hostkey, command))
output = host_connection.executecommand(command)
return_status = atfutils.assert_success(output['exitstatus'])
atfutils.print_stdout(output['stdoutdata'])
atfutils.print_stderr(output['stderrdata'])
return return_status
def mkdir(hostkey, dirpath):
"""
"""
logger = GlobalObj.getLoggerObj()
base_command = "mkdir -p"
cm = GlobalObj.getConnectionsManagerObj()
if system_dirs.match(dirpath):
logger.error("System Directiories cannot be created")
return 1
else:
host_connection = cm.getConnection(hostkey)
if not host_connection:
logger.error("SSH Connection Not established to host '%s' "
% hostkey)
return 1
command = ' '.join([base_command, dirpath])
logger.debug('%s: Executing Command: %s' % (hostkey, command))
output = host_connection.executecommand(command)
return_status = atfutils.assert_success(output['exitstatus'])
atfutils.print_stdout(output['stdoutdata'])
atfutils.print_stderr(output['stderrdata'])
return return_status
def mkfs(hostkey, device, fstype=None):
"""
"""
logger = GlobalObj.getLoggerObj()
base_command = "mkfs"
cm = GlobalObj.getConnectionsManagerObj()
host_connection = cm.getConnection(hostkey)
command = [base_command]
options = []
if not host_connection:
logger.error("SSH Connection Not established to host '%s' " % hostkey)
return 1
if fstype is None:
fstype = "xfs"
options.extend(["-t", fstype, "-f", device])
command.extend(options)
command = ' '.join(command)
logger.debug('%s: Executing Command: %s' % (hostkey, command))
output = host_connection.executecommand(command)
return_status = atfutils.assert_success(output['exitstatus'])
atfutils.print_stdout(output['stdoutdata'])
atfutils.print_stderr(output['stderrdata'])
return return_status
def find_mountpoints(hostkey, device):
"""
"""
logger = GlobalObj.getLoggerObj()
base_command = "mount | grep "
cm = GlobalObj.getConnectionsManagerObj()
host_connection = cm.getConnection(hostkey)
if not host_connection:
logger.error("SSH connection to host '%s' has not been established"
% hostkey)
return 1
mountpoints = []
command = base_command + device
logger.debug('%s: Executing Command: %s' % (hostkey, command))
output = host_connection.executecommand(command)
if not output["exitstatus"]:
for data in output["stdoutdata"]:
mountpoints.append(data.split(" ")[2])
return mountpoints
def execute_command(hostkey, command, commandInput=None):
"""
"""
logger = GlobalObj.getLoggerObj()
cm = GlobalObj.getConnectionsManagerObj()
host_connection = cm.getConnection(hostkey)
if not host_connection:
logger.error("SSH Connection Not established to host '%s' "
% hostkey)
return 1
new_command = _substitute_value_for_variables(command)
logger.debug('%s: Executing Command: %s' % (hostkey, command))
output = host_connection.executecommand(new_command, commandInput)
atfutils.print_stdout(output['stdoutdata'])
atfutils.print_stderr(output['stderrdata'])
return output
def _substitute_value_for_variables(command):
"""
"""
logger = GlobalObj.getLoggerObj()
env = GlobalObj.getTestenvObj()
new_command = command
pattern_for_variables = re.compile("<[a-z]+\d*\.[a-z]*>")
name_to_functions_mapping = {
"export" : "getExportdir",
"server" : "getServer",
"brick" : "getBrick",
"volume" : "getVolume",
"client" : "getClient",
"mountdevice" : "getMountDevice",
"mount" : "getMount"}
name_pattern = re.compile('(export|server|brick|volume|client|mountdevice|mount)*')
variable_to_replace_named_tuple = namedtuple("Vars", ["actual_var",
"name",
"option"])
variables_to_replace = []
variables = pattern_for_variables.findall(command)
if not variables:
return new_command
else:
active_volume = env.getActiveVolume()
for variable in variables:
if variable not in variables_to_replace:
name, option = (variable.strip("<>")).split(".")
variables_to_replace.append(variable_to_replace_named_tuple(variable,
name,
option))
for variable in variables_to_replace:
actual_var = variable.actual_var
name = variable.name
option = variable.option
matched_obj = name_pattern.match(name.lower())
result = matched_obj.group(0)
if result is '':
continue
else:
funcname = name_to_functions_mapping[result]
function = getattr(env, funcname)
obj_value = function(name)
if obj_value is None:
continue
else:
try:
option_value = obj_value.__getattribute__(option)
except AttributeError:
logger.error("Attribute Error: %s object has no attribute '%s'" %
(name, option))
continue
else:
actual_var_pattern = re.compile(actual_var)
new_command = actual_var_pattern.sub(option_value,
new_command)
variables = pattern_for_variables.findall(command)
if not variables:
new_command = ""
return new_command
return new_command
__all__ = ['cd',
'rmdir',
'mkdir',
'mkfs',
'find_mountpoints',
'execute_command']
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