Add comments to exported types and functions from internal/log package

internal/log/log.go

@@ -11,36 +11,45 @@ import (
 	"os"
 )
 
+// NewLogger creates and returns a new instance of Logger.
 func NewLogger(out io.Writer) *Logger {
 	return &Logger{
 		stdlog.New(out, "", stdlog.Ldate|stdlog.Ltime|stdlog.Lmicroseconds|stdlog.LUTC),
 	}
 }
 
+// Logger is a wrapper object around log.Logger from the standard library.
+// It supports logging at various log levels.
 type Logger struct {
 	*stdlog.Logger
 }
 
+// Debug logs a message at Debug level.
 func (l *Logger) Debug(format string, args ...interface{}) {
 	format = "DEBUG: " + format
 	l.Printf(format, args...)
 }
 
+// Info logs a message at Info level.
 func (l *Logger) Info(format string, args ...interface{}) {
 	format = "INFO: " + format
 	l.Printf(format, args...)
 }
 
+// Warn logs a message at Warning level.
 func (l *Logger) Warn(format string, args ...interface{}) {
 	format = "WARN: " + format
 	l.Printf(format, args...)
 }
 
+// Error logs a message at Error level.
 func (l *Logger) Error(format string, args ...interface{}) {
 	format = "ERROR: " + format
 	l.Printf(format, args...)
 }
 
+// Fatal logs a message at Fatal level
+// and process will exit with status set to 1.
 func (l *Logger) Fatal(format string, args ...interface{}) {
 	format = "FATAL: " + format
 	l.Printf(format, args...)