mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-26 20:30:10 +01:00
5b7e8d1309
* lib/backup/s3remote: update AWS SDK to v2 * Update lib/backup/s3remote/s3.go Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com> * lib/backup/s3remote: refactor error handling Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
135 lines
3.3 KiB
Go
135 lines
3.3 KiB
Go
package time
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"math/big"
|
|
"strings"
|
|
"time"
|
|
)
|
|
|
|
const (
|
|
// dateTimeFormat is a IMF-fixdate formatted RFC3339 section 5.6
|
|
dateTimeFormatInput = "2006-01-02T15:04:05.999999999Z"
|
|
dateTimeFormatInputNoZ = "2006-01-02T15:04:05.999999999"
|
|
dateTimeFormatOutput = "2006-01-02T15:04:05.999Z"
|
|
|
|
// httpDateFormat is a date time defined by RFC 7231#section-7.1.1.1
|
|
// IMF-fixdate with no UTC offset.
|
|
httpDateFormat = "Mon, 02 Jan 2006 15:04:05 GMT"
|
|
// Additional formats needed for compatibility.
|
|
httpDateFormatSingleDigitDay = "Mon, _2 Jan 2006 15:04:05 GMT"
|
|
httpDateFormatSingleDigitDayTwoDigitYear = "Mon, _2 Jan 06 15:04:05 GMT"
|
|
)
|
|
|
|
var millisecondFloat = big.NewFloat(1e3)
|
|
|
|
// FormatDateTime formats value as a date-time, (RFC3339 section 5.6)
|
|
//
|
|
// Example: 1985-04-12T23:20:50.52Z
|
|
func FormatDateTime(value time.Time) string {
|
|
return value.UTC().Format(dateTimeFormatOutput)
|
|
}
|
|
|
|
// ParseDateTime parses a string as a date-time, (RFC3339 section 5.6)
|
|
//
|
|
// Example: 1985-04-12T23:20:50.52Z
|
|
func ParseDateTime(value string) (time.Time, error) {
|
|
return tryParse(value,
|
|
dateTimeFormatInput,
|
|
dateTimeFormatInputNoZ,
|
|
time.RFC3339Nano,
|
|
time.RFC3339,
|
|
)
|
|
}
|
|
|
|
// FormatHTTPDate formats value as a http-date, (RFC 7231#section-7.1.1.1 IMF-fixdate)
|
|
//
|
|
// Example: Tue, 29 Apr 2014 18:30:38 GMT
|
|
func FormatHTTPDate(value time.Time) string {
|
|
return value.UTC().Format(httpDateFormat)
|
|
}
|
|
|
|
// ParseHTTPDate parses a string as a http-date, (RFC 7231#section-7.1.1.1 IMF-fixdate)
|
|
//
|
|
// Example: Tue, 29 Apr 2014 18:30:38 GMT
|
|
func ParseHTTPDate(value string) (time.Time, error) {
|
|
return tryParse(value,
|
|
httpDateFormat,
|
|
httpDateFormatSingleDigitDay,
|
|
httpDateFormatSingleDigitDayTwoDigitYear,
|
|
time.RFC850,
|
|
time.ANSIC,
|
|
)
|
|
}
|
|
|
|
// FormatEpochSeconds returns value as a Unix time in seconds with with decimal precision
|
|
//
|
|
// Example: 1515531081.123
|
|
func FormatEpochSeconds(value time.Time) float64 {
|
|
ms := value.UnixNano() / int64(time.Millisecond)
|
|
return float64(ms) / 1e3
|
|
}
|
|
|
|
// ParseEpochSeconds returns value as a Unix time in seconds with with decimal precision
|
|
//
|
|
// Example: 1515531081.123
|
|
func ParseEpochSeconds(value float64) time.Time {
|
|
f := big.NewFloat(value)
|
|
f = f.Mul(f, millisecondFloat)
|
|
i, _ := f.Int64()
|
|
// Offset to `UTC` because time.Unix returns the time value based on system
|
|
// local setting.
|
|
return time.Unix(0, i*1e6).UTC()
|
|
}
|
|
|
|
func tryParse(v string, formats ...string) (time.Time, error) {
|
|
var errs parseErrors
|
|
for _, f := range formats {
|
|
t, err := time.Parse(f, v)
|
|
if err != nil {
|
|
errs = append(errs, parseError{
|
|
Format: f,
|
|
Err: err,
|
|
})
|
|
continue
|
|
}
|
|
return t, nil
|
|
}
|
|
|
|
return time.Time{}, fmt.Errorf("unable to parse time string, %w", errs)
|
|
}
|
|
|
|
type parseErrors []parseError
|
|
|
|
func (es parseErrors) Error() string {
|
|
var s strings.Builder
|
|
for _, e := range es {
|
|
fmt.Fprintf(&s, "\n * %q: %v", e.Format, e.Err)
|
|
}
|
|
|
|
return "parse errors:" + s.String()
|
|
}
|
|
|
|
type parseError struct {
|
|
Format string
|
|
Err error
|
|
}
|
|
|
|
// SleepWithContext will wait for the timer duration to expire, or until the context
|
|
// is canceled. Whichever happens first. If the context is canceled the
|
|
// Context's error will be returned.
|
|
func SleepWithContext(ctx context.Context, dur time.Duration) error {
|
|
t := time.NewTimer(dur)
|
|
defer t.Stop()
|
|
|
|
select {
|
|
case <-t.C:
|
|
break
|
|
case <-ctx.Done():
|
|
return ctx.Err()
|
|
}
|
|
|
|
return nil
|
|
}
|