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log.go
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// Package log is the logging library used by IPFS
// (https://github.com/ipfs/go-ipfs). It uses a modified version of
// https://godoc.org/github.com/whyrusleeping/go-logging .
package log
import (
"time"
"go.uber.org/zap"
)
// StandardLogger provides API compatibility with standard printf loggers
// eg. go-logging
type StandardLogger interface {
Debug(args ...interface{})
Debugf(format string, args ...interface{})
Error(args ...interface{})
Errorf(format string, args ...interface{})
Fatal(args ...interface{})
Fatalf(format string, args ...interface{})
Info(args ...interface{})
Infof(format string, args ...interface{})
Panic(args ...interface{})
Panicf(format string, args ...interface{})
Warn(args ...interface{})
Warnf(format string, args ...interface{})
}
// EventLogger extends the StandardLogger interface to allow for log items
// containing structured metadata
type EventLogger interface {
StandardLogger
}
// Logger retrieves an event logger by name
func Logger(system string) *ZapEventLogger {
if len(system) == 0 {
setuplog := getLogger("setup-logger")
setuplog.Error("Missing name parameter")
system = "undefined"
}
logger := getLogger(system)
return &ZapEventLogger{system: system, SugaredLogger: *logger}
}
// ZapEventLogger implements the EventLogger and wraps a go-logging Logger
type ZapEventLogger struct {
zap.SugaredLogger
system string
}
// FormatRFC3339 returns the given time in UTC with RFC3999Nano format.
func FormatRFC3339(t time.Time) string {
return t.UTC().Format(time.RFC3339Nano)
}
// WithSkip returns a new logger that skips the specified number of stack frames when reporting the
// line/file.
func WithSkip(l *ZapEventLogger, skip int) *ZapEventLogger {
// TODO: implement correctly
return l
}