initial commit

pkg/core/helper.go

@@ -0,0 +1,26 @@
+package core
+
+import "time"
+
+// Contains checks if slice a contains string str
+func Contains(str string, a []string) (int, bool) {
+	for i, s := range a {
+		if s == str {
+			return i, true
+		}
+	}
+	return -1, false
+}
+
+const (
+	timeFmt = "2006-01-02 15:04:05"
+	fileFmt = "20060102_150405"
+)
+
+func Now() string {
+	return time.Now().Format(timeFmt)
+}
+
+func FileName() string {
+	return time.Now().Format(fileFmt)
+}