mysql_cdc 0.2.1

MySQL/MariaDB binlog change data capture (CDC) connector for Rust
Documentation 
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use crate::commands::dump_binlog_command::DumpBinlogCommand;
use crate::commands::query_command::QueryCommand;
use crate::commands::register_slave_command::RegisterSlaveCommand;
use crate::errors::Error;
use crate::extensions::check_error_packet;
use crate::packet_channel::PacketChannel;
use crate::replica_options::ReplicaOptions;
use crate::starting_strategy::StartingStrategy;

pub fn replicate_mariadb(
    channel: &mut PacketChannel,
    options: &ReplicaOptions,
    server_id: u32,
) -> Result<(), Error> {
    let command = QueryCommand::new("SET @mariadb_slave_capability=4".to_string());
    channel.write_packet(&command.serialize()?, 0)?;
    let (packet, _) = channel.read_packet()?;
    check_error_packet(&packet, "Setting @mariadb_slave_capability error.")?;

    if options.binlog.starting_strategy == StartingStrategy::FromGtid {
        if let Some(gtid_list) = &options.binlog.gtid_list {
            register_gtid_slave(channel, options.server_id, &gtid_list.to_string())?;
        } else {
            return Err(Error::String("GtidList was not specified".to_string()));
        }
    }

    let command = DumpBinlogCommand::new(
        server_id,
        options.binlog.filename.clone(),
        options.binlog.position,
    );
    channel.write_packet(&command.serialize()?, 0)?;
    Ok(())
}

fn register_gtid_slave(
    channel: &mut PacketChannel,
    server_id: u32,
    gtid_list: &String,
) -> Result<(), Error> {
    let command = QueryCommand::new(format!("SET @slave_connect_state='{}'", gtid_list));
    channel.write_packet(&command.serialize()?, 0)?;
    let (packet, _) = channel.read_packet()?;
    check_error_packet(&packet, "Setting @slave_connect_state error.")?;

    let command = QueryCommand::new("SET @slave_gtid_strict_mode=0".to_string());
    channel.write_packet(&command.serialize()?, 0)?;
    let (packet, _) = channel.read_packet()?;
    check_error_packet(&packet, "Setting @slave_gtid_strict_mode error.")?;

    let command = QueryCommand::new("SET @slave_gtid_ignore_duplicates=0".to_string());
    channel.write_packet(&command.serialize()?, 0)?;
    let (packet, _) = channel.read_packet()?;
    check_error_packet(&packet, "Setting @slave_gtid_ignore_duplicates error.")?;

    let command = RegisterSlaveCommand::new(server_id);
    channel.write_packet(&command.serialize()?, 0)?;
    let (packet, _) = channel.read_packet()?;
    check_error_packet(&packet, "Registering slave error.")?;
    Ok(())
}