def create_dir_if_not_exists(self, dir_path):
"""
This method recursively creates a directory if not exists
If the path exists and is not a directory raise an exception.
:param str dir_path: full path for the directory
"""
_logger.debug('Create directory %s if it does not exists' % dir_path)
exists = self.exists(dir_path)
if exists:
is_dir = self.cmd('test', args=['-d', dir_path])
if is_dir != 0:
raise FsOperationFailed(
'A file with the same name already exists')
else:
return False
else:
# Make parent directories if needed
mkdir_ret = self.cmd('mkdir', args=['-p', dir_path])
if mkdir_ret == 0:
return True
else:
raise FsOperationFailed('mkdir execution failed')
def delete_if_exists(self, path):
"""
This method check for the existence of a path.
If it exists, then is removed using a rm -fr command,
and returns True.
If the command fails an exception is raised.
If the path does not exists returns False
:param path the full path for the directory
"""
_logger.debug('Delete path %s if exists' % path)
exists = self.exists(path, False)
if exists:
rm_ret = self.cmd('rm -fr %s' % path)
if rm_ret == 0:
return True
else:
raise FsOperationFailed('rm execution failed')
else:
return False
def check_directory_exists(self, dir_path):
"""
Check for the existence of a directory in path.
if the directory exists returns true.
if the directory does not exists returns false.
if exists a file and is not a directory raises an exception
:param dir_path full path for the directory
"""
_logger.debug('Check if directory %s exists' % dir_path)
exists = self.exists(dir_path)
if exists:
is_dir = self.cmd('test -d %s' % dir_path)
if is_dir != 0:
raise FsOperationFailed(
'A file with the same name exists, but is not a directory')
else:
return True
else:
return False