Script to convert an old-structure Influx database to a new one.

Example to run the script:

$ hass --script influxdb_migrator -H IP_INFLUXDB_HOST \
    --dbname INFLUXDB_DB_NAME

Script arguments:

optional arguments:
  -h, --help            show this help message and exit
  -d dbname, --dbname dbname
                        InfluxDB database name
  -H host, --host host  InfluxDB host address
  -P port, --port port  InfluxDB host port
  -u username, --username username
                        InfluxDB username
  -p password, --password password
                        InfluxDB password
  -s step, --step step  How many points to migrate at the same time
  -o override_measurement, --override-measurement override_measurement
                        Store all your points in the same measurement
  -D, --delete          Delete old database