def device_for_ide_port()

in azurelinuxagent/common/osutil/freebsd.py [0:0]

• 40 lines of code
• 13 McCabe index (conditional complexity)

    def device_for_ide_port(self, port_id):
        """
        Return device name attached to ide port 'n'.
        """
        if port_id > 3:
            return None
        g0 = "00000000"
        if port_id > 1:
            g0 = "00000001"
            port_id = port_id - 2
        err, output = shellutil.run_get_output('sysctl dev.storvsc | grep pnpinfo | grep deviceid=')
        if err:
            return None
        g1 = "000" + ustr(port_id)
        g0g1 = "{0}-{1}".format(g0, g1)

        # pylint: disable=W0105
        """
        search 'X' from 'dev.storvsc.X.%pnpinfo: classid=32412632-86cb-44a2-9b5c-50d1417354f5 deviceid=00000000-0001-8899-0000-000000000000'
        """
        # pylint: enable=W0105

        cmd_search_ide = "sysctl dev.storvsc | grep pnpinfo | grep deviceid={0}".format(g0g1)
        err, output = shellutil.run_get_output(cmd_search_ide)
        if err:
            return None
        cmd_extract_id = cmd_search_ide + "|awk -F . '{print $3}'"
        err, output = shellutil.run_get_output(cmd_extract_id)
        # pylint: disable=W0105
        """
        try to search 'blkvscX' and 'storvscX' to find device name
        """
        # pylint: enable=W0105
        output = output.rstrip()
        cmd_search_blkvsc = "camcontrol devlist -b | grep blkvsc{0} | awk '{{print $1}}'".format(output)
        err, output = shellutil.run_get_output(cmd_search_blkvsc)
        if err == 0:
            output = output.rstrip()
            cmd_search_dev = "camcontrol devlist | grep {0} | awk -F \\( '{{print $2}}'|sed -e 's/.*(//'| sed -e 's/).*//'".format(output)
            err, output = shellutil.run_get_output(cmd_search_dev)
            if err == 0:
                for possible in output.rstrip().split(','):
                    if not possible.startswith('pass'):
                        return possible

        cmd_search_storvsc = "camcontrol devlist -b | grep storvsc{0} | awk '{{print $1}}'".format(output)
        err, output = shellutil.run_get_output(cmd_search_storvsc)
        if err == 0:
            output = output.rstrip()
            cmd_search_dev = "camcontrol devlist | grep {0} | awk -F \\( '{{print $2}}'|sed -e 's/.*(//'| sed -e 's/).*//'".format(output)
            err, output = shellutil.run_get_output(cmd_search_dev)
            if err == 0:
                for possible in output.rstrip().split(','):
                    if not possible.startswith('pass'):
                        return possible
        return None