mirror of
https://github.com/cwinfo/matterbridge.git
synced 2024-11-24 17:51:36 +00:00
57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
package logr
|
|
|
|
import (
|
|
"log"
|
|
"os"
|
|
"strings"
|
|
)
|
|
|
|
// NewStdLogger creates a standard logger backed by a Logr instance.
|
|
// All log records are emitted with the specified log level.
|
|
func NewStdLogger(level Level, logger Logger) *log.Logger {
|
|
adapter := newStdLogAdapter(logger, level)
|
|
return log.New(adapter, "", 0)
|
|
}
|
|
|
|
// RedirectStdLog redirects output from the standard library's package-global logger
|
|
// to this logger at the specified level and with zero or more Field's. Since Logr already
|
|
// handles caller annotations, timestamps, etc., it automatically disables the standard
|
|
// library's annotations and prefixing.
|
|
// A function is returned that restores the original prefix and flags and resets the standard
|
|
// library's output to os.Stderr.
|
|
func (lgr *Logr) RedirectStdLog(level Level, fields ...Field) func() {
|
|
flags := log.Flags()
|
|
prefix := log.Prefix()
|
|
log.SetFlags(0)
|
|
log.SetPrefix("")
|
|
|
|
logger := lgr.NewLogger().With(fields...)
|
|
adapter := newStdLogAdapter(logger, level)
|
|
log.SetOutput(adapter)
|
|
|
|
return func() {
|
|
log.SetFlags(flags)
|
|
log.SetPrefix(prefix)
|
|
log.SetOutput(os.Stderr)
|
|
}
|
|
}
|
|
|
|
type stdLogAdapter struct {
|
|
logger Logger
|
|
level Level
|
|
}
|
|
|
|
func newStdLogAdapter(logger Logger, level Level) *stdLogAdapter {
|
|
return &stdLogAdapter{
|
|
logger: logger,
|
|
level: level,
|
|
}
|
|
}
|
|
|
|
// Write implements io.Writer
|
|
func (a *stdLogAdapter) Write(p []byte) (int, error) {
|
|
s := strings.TrimSpace(string(p))
|
|
a.logger.Log(a.level, s)
|
|
return len(p), nil
|
|
}
|