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package clients
import (
"dtail/clients/handlers"
"dtail/clients/remote"
"dtail/ssh/client"
"fmt"
"strings"
gossh "golang.org/x/crypto/ssh"
)
// TailClient is used for tailing remote log files (opening, seeking to the end and returning only new incoming lines).
type TailClient struct {
baseClient
}
// NewTailClient returns a new TailClient.
func NewTailClient(args Args) (*TailClient, error) {
c := TailClient{
baseClient: baseClient{
Args: args,
stop: make(chan struct{}),
stopped: make(chan struct{}),
throttleCh: make(chan struct{}, args.MaxInitConnections),
retry: true,
},
}
c.init(c)
return &c, nil
}
func (c TailClient) makeConnection(server string, sshAuthMethods []gossh.AuthMethod, hostKeyCallback *client.HostKeyCallback) *remote.Connection {
conn := remote.NewConnection(server, c.UserName, sshAuthMethods, hostKeyCallback)
conn.Handler = handlers.NewClientHandler(server, c.PingTimeout)
for _, file := range strings.Split(c.Files, ",") {
conn.Commands = append(conn.Commands, fmt.Sprintf("%s %s regex %s", c.Mode.String(), file, c.Regex))
}
return conn
}
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