initial commit

go.mod

@@ -0,0 +1,3 @@
+module github.com/rjbasitali/go-log
+
+go 1.16

log/logger.go

@@ -0,0 +1,39 @@
+package log
+
+import (
+	"fmt"
+	"io"
+)
+
+type Logger struct {
+	Writer io.Writer
+}
+
+func (l Logger) Log(s ...interface{}) {
+	if l.Writer == nil {
+		return
+	}
+	fmt.Fprintln(l.Writer, s...)
+}
+
+func (l Logger) Logf(format string, s ...interface{}) {
+	if l.Writer == nil {
+		return
+	}
+	format = fmt.Sprintf("%s%s", format, "\n")
+	fmt.Fprintf(l.Writer, format, s...)
+}
+
+func (l Logger) Begin(s ...interface{}) {
+	var p []interface{} = append([]interface{}{"BEGIN "}, s...)
+	l.Log(p...)
+}
+
+func (l Logger) End(s ...interface{}) {
+	var p []interface{} = append([]interface{}{"END "}, s...)
+	l.Log(p...)
+}
+
+func (l Logger) Error(s string, err error) {
+	l.Log(s, err)
+}