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logging.go
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/
logging.go
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package config
import (
"io"
"os"
"path"
"strings"
"time"
"github.com/rs/zerolog"
"gopkg.in/natefinch/lumberjack.v2"
)
type ConsoleLogging struct {
Level zerolog.Level `yaml:"level"`
}
type FileLogging struct {
Directory string `yaml:"directory"`
Level zerolog.Level `yaml:"level"`
}
type LoggingConfig struct {
Console ConsoleLogging `yaml:"console"`
File FileLogging `yaml:"file"`
}
func (c LoggingConfig) CreateLogger() *zerolog.Logger {
consoleWriter := &zerolog.FilteredLevelWriter{
Writer: zerolog.LevelWriterAdapter{
Writer: zerolog.ConsoleWriter{
Out: os.Stdout,
TimeFormat: time.RFC3339,
},
},
Level: c.Console.Level,
}
if len(strings.TrimSpace(c.File.Directory)) == 0 {
logger := zerolog.New(consoleWriter).
With().Timestamp().Caller().
Logger()
return &logger
}
if err := os.MkdirAll(c.File.Directory, 0744); err != nil {
logger := zerolog.New(consoleWriter).
With().Timestamp().Caller().
Logger()
return &logger
}
writers := []io.Writer{
consoleWriter,
&zerolog.FilteredLevelWriter{
Writer: zerolog.LevelWriterAdapter{
// Want to avoid json output so just using console writer without color
Writer: zerolog.ConsoleWriter{
NoColor: true,
Out: &lumberjack.Logger{
Filename: path.Join(c.File.Directory, "yacu.log"),
MaxSize: 10,
MaxBackups: 3,
MaxAge: 28,
Compress: true,
},
TimeFormat: time.RFC3339,
},
},
Level: c.File.Level,
},
}
writer := zerolog.MultiLevelWriter(writers...)
logger := zerolog.New(writer).With().Timestamp().Caller().Logger()
return &logger
}