75 lines
1.7 KiB
Go
75 lines
1.7 KiB
Go
package hclog
|
|
|
|
import (
|
|
"bytes"
|
|
"strings"
|
|
)
|
|
|
|
// Provides a io.Writer to shim the data out of *log.Logger
|
|
// and back into our Logger. This is basically the only way to
|
|
// build upon *log.Logger.
|
|
type stdlogAdapter struct {
|
|
log Logger
|
|
inferLevels bool
|
|
forceLevel Level
|
|
}
|
|
|
|
// Take the data, infer the levels if configured, and send it through
|
|
// a regular Logger.
|
|
func (s *stdlogAdapter) Write(data []byte) (int, error) {
|
|
str := string(bytes.TrimRight(data, " \t\n"))
|
|
|
|
if s.forceLevel != NoLevel {
|
|
// Use pickLevel to strip log levels included in the line since we are
|
|
// forcing the level
|
|
_, str := s.pickLevel(str)
|
|
|
|
// Log at the forced level
|
|
s.dispatch(str, s.forceLevel)
|
|
} else if s.inferLevels {
|
|
level, str := s.pickLevel(str)
|
|
s.dispatch(str, level)
|
|
} else {
|
|
s.log.Info(str)
|
|
}
|
|
|
|
return len(data), nil
|
|
}
|
|
|
|
func (s *stdlogAdapter) dispatch(str string, level Level) {
|
|
switch level {
|
|
case Trace:
|
|
s.log.Trace(str)
|
|
case Debug:
|
|
s.log.Debug(str)
|
|
case Info:
|
|
s.log.Info(str)
|
|
case Warn:
|
|
s.log.Warn(str)
|
|
case Error:
|
|
s.log.Error(str)
|
|
default:
|
|
s.log.Info(str)
|
|
}
|
|
}
|
|
|
|
// Detect, based on conventions, what log level this is.
|
|
func (s *stdlogAdapter) pickLevel(str string) (Level, string) {
|
|
switch {
|
|
case strings.HasPrefix(str, "[DEBUG]"):
|
|
return Debug, strings.TrimSpace(str[7:])
|
|
case strings.HasPrefix(str, "[TRACE]"):
|
|
return Trace, strings.TrimSpace(str[7:])
|
|
case strings.HasPrefix(str, "[INFO]"):
|
|
return Info, strings.TrimSpace(str[6:])
|
|
case strings.HasPrefix(str, "[WARN]"):
|
|
return Warn, strings.TrimSpace(str[7:])
|
|
case strings.HasPrefix(str, "[ERROR]"):
|
|
return Error, strings.TrimSpace(str[7:])
|
|
case strings.HasPrefix(str, "[ERR]"):
|
|
return Error, strings.TrimSpace(str[5:])
|
|
default:
|
|
return Info, str
|
|
}
|
|
}
|