update ssh get config value: tabs instead of spaces, ssh port can return None

management/utils.py

@@ -180,28 +180,33 @@ def wait_for_service(port, public, env, timeout):
 		time.sleep(min(timeout/4, 1))
 
 def get_ssh_port():
-        return int(get_ssh_config_value("port"))
+	port_value = get_ssh_config_value("port")
+	
+	if port_value:
+		return int(port_value)
+
+	return None
 
 def get_ssh_config_value(parameter_name):
-        # Returns ssh port
+	# Returns ssh configuration value for the provided parameter
-        try:
+	try:
-                output = shell('check_output', ['sshd', '-T'])
+		output = shell('check_output', ['sshd', '-T'])
-        except FileNotFoundError:
+	except FileNotFoundError:
-                # sshd is not installed. That's ok.
+		# sshd is not installed. That's ok.
-                return None
+		return None
-        except subprocess.CalledProcessError:
+	except subprocess.CalledProcessError:
-                # error while calling shell command
+		# error while calling shell command
-                return None
+		return None
 
-        returnNext = False
+	returnNext = False
-        for e in output.split():
+	for e in output.split():
-                if returnNext:
+		if returnNext:
-                        return e
+			return e
-                if e == parameter_name:
+		if e == parameter_name:
-                        returnNext = True
+			returnNext = True
 
-        # Did not find port!
+	# Did not find the parameter!
-        return None
+	return None
 
 if __name__ == "__main__":
 	from web_update import get_web_domains