def set_solidity_version(version):
"""
set the solidity version, now support 0.5 and 0.6
"""
Status.solidity_version = version
Status.solidity_version_specified = True
LOGGER.debug('expected solidity version is %s', Status.solidity_version)
def port_in_use(port):
"""using cmd nc to check if the port is occupied.
Arguments:
port {string} -- port number
Returns:
bool -- True or False.
"""
cmd = 'nc -z 127.0.0.1' + (' %d' % port)
status, output = getstatusoutput(cmd)
LOGGER.debug('port is %s, status is %s, output is %s', port, status,
output)
return status == 0
def getstatusoutput(cmd):
"""replace commands.getstatusoutput
Arguments:
cmd {[string]}
"""
get_cmd = subprocess.Popen(
cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
ret = get_cmd.communicate()
out = ret[0]
err = ret[1]
output = ''
if not out is None:
output = output + out.decode('utf-8')
if not err is None:
output = output + err.decode('utf-8')
LOGGER.debug(' cmd is %s, status is %s, output is %s',
cmd, str(get_cmd.returncode), output)
return (get_cmd.returncode, output)