def changeBootState(serviceName, shouldStartAtBoot):
if pkg.isAptOS(): # debian
cmd = "sudo update-rc.d %s"
if shouldStartAtBoot: cmd += " defaults"
else: cmd += " remove"
elif pkg.isYumOS():
cmd = "sudo chkconfig %s"
if shouldStartAtBoot: cmd += " on"
else: cmd += " off"
else:
raise NotImplemented
_OS.runCMD(cmd, serviceName)
def checkSuitablePyExe(ver=platform.python_version_tuple[:2], assertExists=True):
"""
Returns the executable name or path of the wanted python version which can be executed from the terminal.
This function can be used to ensure compatibility between different versions.
@param ver tuple: The wanted version, ex. (2,6)
@param assertExists bool: If True, raises an exception if a suitable version isn't installed
@return string: A compatible python executable name or path, or None
"""
currentVer = platform.python_version_tuple[:2]
if currentVer < ver or currentVer[0] > ver[0]:
# incompatible, so check for a differently installed python version
exe = "python" + str(ver[0]) + "." + str(ver[1])
if _OS.runCMD(exe + " -V", assertSuccess=False).returnCode != 0:
if assertExists:
raise Exception("Your python version is incompatible. Please install python " + ".".join(ver) + " and run this application using that version.")
return None
else:
return exe
else:
return sys.executable
def remove(serviceName):
if pkg.isAptOS():
_OS.runCMD("sudo update-rc.d -f %s remove", serviceName)
elif pkg.isYumOS():
raise NotImplemented # TODO
def changeCurrentState(serviceName, action):
assert action in ["start", "stop", "restart"]
_OS.runCMD("sudo /etc/init.d/%s %s", (serviceName, action))