|
| 1 | +package glog |
| 2 | + |
| 3 | +import ( |
| 4 | + "fmt" |
| 5 | + "github.com/sirupsen/logrus" |
| 6 | + "io" |
| 7 | + "os" |
| 8 | + "path" |
| 9 | + "runtime" |
| 10 | +) |
| 11 | + |
| 12 | +// writerHook is a structure that defines a hook for logrus. |
| 13 | +// It contains a slice of io.Writer where logs will be written, |
| 14 | +// and LogLevels, which define the log levels that the hook will process. |
| 15 | +type writerHook struct { |
| 16 | + Writer []io.Writer |
| 17 | + LogLevels []logrus.Level |
| 18 | +} |
| 19 | + |
| 20 | +// Fire is called by logrus when a log entry is fired. |
| 21 | +// It writes the log entry to all the writers defined in the hook. |
| 22 | +// Returns an error if writing to any writer fails. |
| 23 | +func (hook *writerHook) Fire(entry *logrus.Entry) error { |
| 24 | + line, err := entry.String() |
| 25 | + if err != nil { |
| 26 | + return err |
| 27 | + } |
| 28 | + |
| 29 | + for _, w := range hook.Writer { |
| 30 | + if _, err := w.Write([]byte(line)); err != nil { |
| 31 | + return fmt.Errorf("failed to write log entry to writer: %v", err) |
| 32 | + } |
| 33 | + } |
| 34 | + return err |
| 35 | +} |
| 36 | + |
| 37 | +// Levels returns the log levels that the hook will process. |
| 38 | +// This method is required by logrus' Hook interface. |
| 39 | +func (hook *writerHook) Levels() []logrus.Level { |
| 40 | + return hook.LogLevels |
| 41 | +} |
| 42 | + |
| 43 | +var e *logrus.Entry |
| 44 | + |
| 45 | +// Logger is a wrapper around logrus.Entry to provide additional methods. |
| 46 | +type Logger struct { |
| 47 | + *logrus.Entry |
| 48 | +} |
| 49 | + |
| 50 | +// GetLogger returns the global logger instance. |
| 51 | +func GetLogger() *Logger { |
| 52 | + return &Logger{e} |
| 53 | +} |
| 54 | + |
| 55 | +// GetLoggerWithField returns a new Logger with a specific field added to the log entries. |
| 56 | +func (l *Logger) GetLoggerWithField(k string, v interface{}) *Logger { |
| 57 | + return &Logger{l.WithField(k, v)} |
| 58 | +} |
| 59 | + |
| 60 | +// init initializes the logger, sets formatting, output writers, and log levels. |
| 61 | +func init() { |
| 62 | + l := logrus.New() |
| 63 | + |
| 64 | + l.SetReportCaller(true) |
| 65 | + |
| 66 | + l.Formatter = &logrus.TextFormatter{ |
| 67 | + CallerPrettyfier: func(frame *runtime.Frame) (function string, file string) { |
| 68 | + filename := path.Base(frame.File) |
| 69 | + return fmt.Sprintf("%s()", frame.Function), fmt.Sprintf("%s:%d", filename, frame.Line) |
| 70 | + }, |
| 71 | + DisableColors: false, |
| 72 | + FullTimestamp: true, |
| 73 | + } |
| 74 | + |
| 75 | + err := os.MkdirAll("logs", 0755) |
| 76 | + if err != nil { |
| 77 | + panic(err) |
| 78 | + } |
| 79 | + |
| 80 | + allFile, err := os.OpenFile("logs/all.log", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644) |
| 81 | + if err != nil { |
| 82 | + panic(err) |
| 83 | + } |
| 84 | + |
| 85 | + fmt.Printf("all log file: %s\n", allFile.Name()) |
| 86 | + |
| 87 | + l.SetOutput(io.Discard) |
| 88 | + |
| 89 | + l.AddHook(&writerHook{ |
| 90 | + Writer: []io.Writer{allFile, os.Stdout}, |
| 91 | + LogLevels: logrus.AllLevels, |
| 92 | + }) |
| 93 | + |
| 94 | + l.SetLevel(logrus.TraceLevel) |
| 95 | + |
| 96 | + e = logrus.NewEntry(l) |
| 97 | +} |
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