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# Copyright (C) 2014 Codethink Limited
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
'''Baserock system-test utility functions.'''
import cliapp
import contextlib
import copy
import os
import sys
import urlparse
import config
def run_morph(args, **kwargs):
'''Run Morph on the current machine.
This is not quite compatible with the run_morph() shell function inside
Morph's Yarn's because these tests require connectivity to an actual Trove
and an actual VM host and therefore it's quite a different setup to the
self-contained Morph test suite.
'''
morph_command = copy.copy(config.MORPH_COMMAND)
if isinstance(morph_command, str):
if ' ' in morph_command:
morph_command = morph_command.split(' ')
else:
morph_command = [morph_command]
if config.log_dir is not None:
morph_command += ['--log', os.path.join(config.log_dir, 'morph.log')]
cmd = morph_command + args
if config.VERBOSE:
print ' '.join(cmd)
if 'stdout' not in kwargs:
kwargs['stdout'] = sys.stdout
if 'stderr' not in kwargs:
kwargs['stderr'] = sys.stdout
return cliapp.runcmd(cmd, **kwargs)
def run_git(args, **kwargs):
return cliapp.runcmd(['git'] + args, **kwargs)
def remote_runcmd(url, command, **kwargs):
'''
Execute a command on machine 'url'.
Command must be a list of arguments, not a single string.
FIXME: perhaps this functionality should be merged into cliapp.ssh_runcmd()
so that we can use that instead.
'''
if config.VERBOSE:
print "%s: %s" % (url, ' '.join(command))
url = urlparse.urlsplit(url)
if url[0] in ['ssh', 'kvm+ssh']:
ssh_host = url[1]
ssh_cmd = ['ssh']
# The identity of the newly-created test machine will never be in
# '~/.ssh/known_hosts'; this switch avoids seeing the 'do you want to
# connect' prompt that SSH would normally present in this situation.
ssh_cmd.extend(['-o', 'StrictHostKeyChecking=no'])
return cliapp.runcmd(ssh_cmd + [ssh_host, ' '.join(command)], **kwargs)
else:
raise NotImplementedError("Remote machine must be an ssh:// URL")
def read_file(file_path):
with open(file_path, 'r') as f:
return f.read()
def write_file(file_path, text):
with open(file_path, 'w') as f:
f.write(text)
@contextlib.contextmanager
def set_directory(path):
'''Context manager to set current working directory of a script.'''
old_path = os.getcwd()
os.chdir(path)
try:
yield
finally:
os.chdir(old_path)
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