/
log.go
51 lines (42 loc) · 1.06 KB
/
log.go
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package cmd
import (
"os"
"time"
"github.com/rs/zerolog"
"github.com/rs/zerolog/log"
)
var (
fileLogger zerolog.Logger
logger zerolog.Logger
)
func init() {
initLog()
}
// initLog setup logging facilities
func initLog() {
// Console logger
log.Logger = log.Output(zerolog.ConsoleWriter{Out: os.Stderr, TimeFormat: time.RFC3339})
// If DEBUG_FILE is set we log debug messages to the given file.
if dbgFile := os.Getenv("DEBUG_FILE"); dbgFile != "" {
file, err := os.OpenFile(
dbgFile,
os.O_APPEND|os.O_CREATE|os.O_WRONLY,
0664,
)
if err != nil {
log.Fatal().Msg(err.Error())
}
fileLogger = zerolog.New(
zerolog.ConsoleWriter{Out: file, NoColor: true}).Level(zerolog.InfoLevel)
// Log level: "trace", "debug", "info", "warn", "error", "fatal, "panic"
if dbgLevel := os.Getenv("DEBUG_LEVEL"); dbgLevel != "" {
if lvl, err := zerolog.ParseLevel(dbgLevel); err == nil {
fileLogger = fileLogger.Level(lvl)
} else {
log.Error().Msgf("Invalid log level: %s", dbgLevel)
}
}
} else {
fileLogger = zerolog.Nop()
}
}