mirror of https://github.com/octoleo/restic.git
104 lines
3.1 KiB
Go
104 lines
3.1 KiB
Go
package date
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// Copyright 2017 Microsoft Corporation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import (
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"regexp"
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"time"
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)
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// Azure reports time in UTC but it doesn't include the 'Z' time zone suffix in some cases.
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const (
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azureUtcFormatJSON = `"2006-01-02T15:04:05.999999999"`
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azureUtcFormat = "2006-01-02T15:04:05.999999999"
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rfc3339JSON = `"` + time.RFC3339Nano + `"`
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rfc3339 = time.RFC3339Nano
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tzOffsetRegex = `(Z|z|\+|-)(\d+:\d+)*"*$`
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)
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// Time defines a type similar to time.Time but assumes a layout of RFC3339 date-time (i.e.,
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// 2006-01-02T15:04:05Z).
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type Time struct {
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time.Time
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}
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// MarshalBinary preserves the Time as a byte array conforming to RFC3339 date-time (i.e.,
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// 2006-01-02T15:04:05Z).
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func (t Time) MarshalBinary() ([]byte, error) {
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return t.Time.MarshalText()
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}
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// UnmarshalBinary reconstitutes a Time saved as a byte array conforming to RFC3339 date-time
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// (i.e., 2006-01-02T15:04:05Z).
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func (t *Time) UnmarshalBinary(data []byte) error {
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return t.UnmarshalText(data)
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}
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// MarshalJSON preserves the Time as a JSON string conforming to RFC3339 date-time (i.e.,
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// 2006-01-02T15:04:05Z).
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func (t Time) MarshalJSON() (json []byte, err error) {
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return t.Time.MarshalJSON()
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}
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// UnmarshalJSON reconstitutes the Time from a JSON string conforming to RFC3339 date-time
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// (i.e., 2006-01-02T15:04:05Z).
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func (t *Time) UnmarshalJSON(data []byte) (err error) {
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timeFormat := azureUtcFormatJSON
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match, err := regexp.Match(tzOffsetRegex, data)
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if err != nil {
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return err
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} else if match {
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timeFormat = rfc3339JSON
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}
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t.Time, err = ParseTime(timeFormat, string(data))
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return err
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}
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// MarshalText preserves the Time as a byte array conforming to RFC3339 date-time (i.e.,
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// 2006-01-02T15:04:05Z).
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func (t Time) MarshalText() (text []byte, err error) {
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return t.Time.MarshalText()
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}
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// UnmarshalText reconstitutes a Time saved as a byte array conforming to RFC3339 date-time
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// (i.e., 2006-01-02T15:04:05Z).
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func (t *Time) UnmarshalText(data []byte) (err error) {
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timeFormat := azureUtcFormat
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match, err := regexp.Match(tzOffsetRegex, data)
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if err != nil {
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return err
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} else if match {
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timeFormat = rfc3339
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}
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t.Time, err = ParseTime(timeFormat, string(data))
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return err
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}
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// String returns the Time formatted as an RFC3339 date-time string (i.e.,
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// 2006-01-02T15:04:05Z).
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func (t Time) String() string {
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// Note: time.Time.String does not return an RFC3339 compliant string, time.Time.MarshalText does.
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b, err := t.MarshalText()
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if err != nil {
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return ""
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}
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return string(b)
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}
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// ToTime returns a Time as a time.Time
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func (t Time) ToTime() time.Time {
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return t.Time
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}
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