mirror of https://github.com/perkeep/perkeep.git
97 lines
2.4 KiB
Go
97 lines
2.4 KiB
Go
/*
|
|
Copyright 2013 Google Inc.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package types
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"regexp"
|
|
"runtime"
|
|
"time"
|
|
)
|
|
|
|
var (
|
|
goVersion = runtime.Version()
|
|
dotNumbers = regexp.MustCompile(`\.\d+`)
|
|
)
|
|
|
|
// Time3339 is a time.Time which encodes to and from JSON
|
|
// as an RFC 3339 time in UTC.
|
|
type Time3339 time.Time
|
|
|
|
var (
|
|
_ json.Marshaler = Time3339{}
|
|
_ json.Unmarshaler = (*Time3339)(nil)
|
|
)
|
|
|
|
func (t Time3339) String() string {
|
|
return time.Time(t).UTC().Format(time.RFC3339Nano)
|
|
}
|
|
|
|
func (t Time3339) MarshalJSON() ([]byte, error) {
|
|
return json.Marshal(t.String())
|
|
}
|
|
|
|
func (t *Time3339) UnmarshalJSON(b []byte) error {
|
|
if len(b) < 2 || b[0] != '"' || b[len(b)-1] != '"' {
|
|
return fmt.Errorf("types: failed to unmarshal non-string value %q as an RFC 3339 time")
|
|
}
|
|
tm, err := time.Parse(time.RFC3339Nano, string(b[1:len(b)-1]))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
*t = Time3339(tm)
|
|
return nil
|
|
}
|
|
|
|
// ParseTime3339OrZero parses a string in RFC3339 format. If it's invalid,
|
|
// the zero time value is returned instead.
|
|
func ParseTime3339OrZero(v string) Time3339 {
|
|
t, err := time.Parse(time.RFC3339Nano, v)
|
|
if err != nil {
|
|
return Time3339{}
|
|
}
|
|
return Time3339(t)
|
|
}
|
|
|
|
func ParseTime3339OrZil(v string) *Time3339 {
|
|
t, err := time.Parse(time.RFC3339Nano, v)
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
tm := Time3339(t)
|
|
return &tm
|
|
}
|
|
|
|
// Time returns the time as a time.Time with slightly less stutter
|
|
// than a manual conversion.
|
|
func (t Time3339) Time() time.Time {
|
|
return time.Time(t)
|
|
}
|
|
|
|
// IsZero returns whether the time is Go zero or Unix zero.
|
|
func (t *Time3339) IsZero() bool {
|
|
return t == nil || time.Time(*t).IsZero() || time.Time(*t).Unix() == 0
|
|
}
|
|
|
|
// ByTime sorts times.
|
|
type ByTime []time.Time
|
|
|
|
func (s ByTime) Len() int { return len(s) }
|
|
func (s ByTime) Less(i, j int) bool { return s[i].Before(s[j]) }
|
|
func (s ByTime) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
|