feature(1.2.8): 使用 embed 打包静态资源

- go version 升级为 1.16
- 使用 embed 特性，将静态资源打包进二进制文件
- 优化代码

pkg/timeutil/timeutil.go

@@ -0,0 +1,73 @@
+package timeutil
+
+import (
+	"math"
+	"net/http"
+	"time"
+)
+
+var (
+	cst *time.Location
+)
+
+// CSTLayout China Standard Time Layout
+const CSTLayout = "2006-01-02 15:04:05"
+
+func init() {
+	var err error
+	if cst, err = time.LoadLocation("Asia/Shanghai"); err != nil {
+		panic(err)
+	}
+
+	// 默认设置为中国时区
+	time.Local = cst
+}
+
+// RFC3339ToCSTLayout convert rfc3339 value to china standard time layout
+// 2020-11-08T08:18:46+08:00 => 2020-11-08 08:18:46
+func RFC3339ToCSTLayout(value string) (string, error) {
+	ts, err := time.Parse(time.RFC3339, value)
+	if err != nil {
+		return "", err
+	}
+
+	return ts.In(cst).Format(CSTLayout), nil
+}
+
+// CSTLayoutString 格式化时间
+// 返回 "2006-01-02 15:04:05" 格式的时间
+func CSTLayoutString() string {
+	ts := time.Now()
+	return ts.In(cst).Format(CSTLayout)
+}
+
+// ParseCSTInLocation 格式化时间
+func ParseCSTInLocation(date string) (time.Time, error) {
+	return time.ParseInLocation(CSTLayout, date, cst)
+}
+
+// CSTLayoutStringToUnix 返回 unix 时间戳
+// 2020-01-24 21:11:11 => 1579871471
+func CSTLayoutStringToUnix(cstLayoutString string) (int64, error) {
+	stamp, err := time.ParseInLocation(CSTLayout, cstLayoutString, cst)
+	if err != nil {
+		return 0, err
+	}
+	return stamp.Unix(), nil
+}
+
+// GMTLayoutString 格式化时间
+// 返回 "Mon, 02 Jan 2006 15:04:05 GMT" 格式的时间
+func GMTLayoutString() string {
+	return time.Now().In(cst).Format(http.TimeFormat)
+}
+
+// ParseGMTInLocation 格式化时间
+func ParseGMTInLocation(date string) (time.Time, error) {
+	return time.ParseInLocation(http.TimeFormat, date, cst)
+}
+
+// SubInLocation 计算时间差
+func SubInLocation(ts time.Time) float64 {
+	return math.Abs(time.Now().In(cst).Sub(ts).Seconds())
+}

pkg/timeutil/timeutil_test.go

@@ -0,0 +1,19 @@
+package timeutil
+
+import "testing"
+
+func TestRFC3339ToCSTLayout(t *testing.T) {
+	t.Log(RFC3339ToCSTLayout("2020-11-08T08:18:46+08:00"))
+}
+
+func TestCSTLayoutString(t *testing.T) {
+	t.Log(CSTLayoutString())
+}
+
+func TestCSTLayoutStringToUnix(t *testing.T) {
+	t.Log(CSTLayoutStringToUnix("2020-01-24 21:11:11"))
+}
+
+func TestGMTLayoutString(t *testing.T) {
+	t.Log(GMTLayoutString())
+}