package main
import (
"io"
"os"
"strings"
"github.com/rs/zerolog"
)
func newLogger(cfg LoggingConfig) (zerolog.Logger, error) {
level, err := zerolog.ParseLevel(cfg.Level)
if err != nil {
level = zerolog.InfoLevel
}
zerolog.SetGlobalLevel(level)
var output io.Writer
switch cfg.Output {
case "stdout":
output = os.Stdout
case "stderr":
output = os.Stderr
case "file":
output = os.Stderr
default:
output = os.Stderr
}
var logger zerolog.Logger
switch cfg.Format {
case "json":
logger = zerolog.New(output).With().Timestamp().Logger()
case "console":
logger = zerolog.New(zerolog.ConsoleWriter{
Out: output,
TimeFormat: "15:04:05",
NoColor: isNoColor(),
}).With().Timestamp().Logger()
default:
logger = zerolog.New(zerolog.ConsoleWriter{
Out: output,
TimeFormat: "15:04:05",
NoColor: isNoColor(),
}).With().Timestamp().Logger()
}
return logger, nil
}
func isNoColor() bool {
return os.Getenv("NO_COLOR") != "" ||
os.Getenv("TERM") == "dumb" ||
!strings.Contains(os.Getenv("TERM"), "color")
}
