status-go/vendor/github.com/ipfs/go-log/writer/option.go

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package log
import (
"io"
logging "github.com/whyrusleeping/go-logging"
)
// WriterGroup is the global writer group for logs to output to
var WriterGroup = NewMirrorWriter()
// Option is a generic function
type Option func()
// Configure applies the provided options sequentially from left to right
func Configure(options ...Option) {
for _, f := range options {
f()
}
}
// LdJSONFormatter Option formats the event log as line-delimited JSON
var LdJSONFormatter = func() {
logging.SetFormatter(&PoliteJSONFormatter{})
}
// TextFormatter Option formats the event log as human-readable plain-text
var TextFormatter = func() {
logging.SetFormatter(logging.DefaultFormatter)
}
// Output returns an option which sets the the given writer as the new
// logging backend
func Output(w io.Writer) Option {
return func() {
backend := logging.NewLogBackend(w, "", 0)
logging.SetBackend(backend)
// TODO return previous Output option
}
}
// LevelDebug Option sets the log level to debug
var LevelDebug = func() {
logging.SetLevel(logging.DEBUG, "")
}
// LevelError Option sets the log level to error
var LevelError = func() {
logging.SetLevel(logging.ERROR, "")
}
// LevelInfo Option sets the log level to info
var LevelInfo = func() {
logging.SetLevel(logging.INFO, "")
}