Move to vendor

Signed-off-by: Olivier Gambier <olivier@docker.com>

vendor/github.com/denverdino/aliyungo/util/iso6801.go

@@ -0,0 +1,80 @@
+package util
+
+import (
+	"fmt"
+	"strconv"
+	"time"
+)
+
+// GetISO8601TimeStamp gets timestamp string in ISO8601 format
+func GetISO8601TimeStamp(ts time.Time) string {
+	t := ts.UTC()
+	return fmt.Sprintf("%04d-%02d-%02dT%02d:%02d:%02dZ", t.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), t.Second())
+}
+
+const formatISO8601 = "2006-01-02T15:04:05Z"
+const jsonFormatISO8601 = `"` + formatISO8601 + `"`
+const formatISO8601withoutSeconds = "2006-01-02T15:04Z"
+const jsonFormatISO8601withoutSeconds = `"` + formatISO8601withoutSeconds + `"`
+
+// A ISO6801Time represents a time in ISO8601 format
+type ISO6801Time time.Time
+
+// New constructs a new iso8601.Time instance from an existing
+// time.Time instance.  This causes the nanosecond field to be set to
+// 0, and its time zone set to a fixed zone with no offset from UTC
+// (but it is *not* UTC itself).
+func NewISO6801Time(t time.Time) ISO6801Time {
+	return ISO6801Time(time.Date(
+		t.Year(),
+		t.Month(),
+		t.Day(),
+		t.Hour(),
+		t.Minute(),
+		t.Second(),
+		0,
+		time.UTC,
+	))
+}
+
+// IsDefault checks if the time is default
+func (it *ISO6801Time) IsDefault() bool {
+	return *it == ISO6801Time{}
+}
+
+// MarshalJSON serializes the ISO6801Time into JSON string
+func (it ISO6801Time) MarshalJSON() ([]byte, error) {
+	return []byte(time.Time(it).Format(jsonFormatISO8601)), nil
+}
+
+// UnmarshalJSON deserializes the ISO6801Time from JSON string
+func (it *ISO6801Time) UnmarshalJSON(data []byte) error {
+	str := string(data)
+
+	if str == "\"\"" || len(data) == 0 {
+		return nil
+	}
+	var t time.Time
+	var err error
+	if str[0] == '"' {
+		t, err = time.ParseInLocation(jsonFormatISO8601, str, time.UTC)
+		if err != nil {
+			t, err = time.ParseInLocation(jsonFormatISO8601withoutSeconds, str, time.UTC)
+		}
+	} else {
+		var i int64
+		i, err = strconv.ParseInt(str, 10, 64)
+		if err == nil {
+			t = time.Unix(i/1000, i%1000)
+		}
+	}
+	if err == nil {
+		*it = ISO6801Time(t)
+	}
+	return err
+}
+
+// String returns the time in ISO6801Time format
+func (it ISO6801Time) String() string {
+	return time.Time(it).Format(formatISO8601)
+}