mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-26 04:10:08 +01:00
e2053baf32
* app/vmctl: add support for the different time format in the native binary protocol * app/vmctl: update flag description, update CHANGELOG.md * app/vmctl: add comment to exported function
106 lines
2.3 KiB
Go
106 lines
2.3 KiB
Go
package utils
|
|
|
|
import (
|
|
"fmt"
|
|
"strconv"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutils"
|
|
)
|
|
|
|
const (
|
|
// These values prevent from overflow when storing msec-precision time in int64.
|
|
minTimeMsecs = 0 // use 0 instead of `int64(-1<<63) / 1e6` because the storage engine doesn't actually support negative time
|
|
maxTimeMsecs = int64(1<<63-1) / 1e6
|
|
)
|
|
|
|
func parseTime(s string) (float64, error) {
|
|
if len(s) > 0 && (s[len(s)-1] != 'Z' && s[len(s)-1] > '9' || s[0] == '-') {
|
|
// Parse duration relative to the current time
|
|
d, err := promutils.ParseDuration(s)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
if d > 0 {
|
|
d = -d
|
|
}
|
|
t := time.Now().Add(d)
|
|
return float64(t.UnixNano()) / 1e9, nil
|
|
}
|
|
if len(s) == 4 {
|
|
// Parse YYYY
|
|
t, err := time.Parse("2006", s)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
return float64(t.UnixNano()) / 1e9, nil
|
|
}
|
|
if !strings.Contains(s, "-") {
|
|
// Parse the timestamp in milliseconds
|
|
return strconv.ParseFloat(s, 64)
|
|
}
|
|
if len(s) == 7 {
|
|
// Parse YYYY-MM
|
|
t, err := time.Parse("2006-01", s)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
return float64(t.UnixNano()) / 1e9, nil
|
|
}
|
|
if len(s) == 10 {
|
|
// Parse YYYY-MM-DD
|
|
t, err := time.Parse("2006-01-02", s)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
return float64(t.UnixNano()) / 1e9, nil
|
|
}
|
|
if len(s) == 13 {
|
|
// Parse YYYY-MM-DDTHH
|
|
t, err := time.Parse("2006-01-02T15", s)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
return float64(t.UnixNano()) / 1e9, nil
|
|
}
|
|
if len(s) == 16 {
|
|
// Parse YYYY-MM-DDTHH:MM
|
|
t, err := time.Parse("2006-01-02T15:04", s)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
return float64(t.UnixNano()) / 1e9, nil
|
|
}
|
|
if len(s) == 19 {
|
|
// Parse YYYY-MM-DDTHH:MM:SS
|
|
t, err := time.Parse("2006-01-02T15:04:05", s)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
return float64(t.UnixNano()) / 1e9, nil
|
|
}
|
|
t, err := time.Parse(time.RFC3339, s)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
return float64(t.UnixNano()) / 1e9, nil
|
|
}
|
|
|
|
// GetTime returns time from the given string.
|
|
func GetTime(s string) (time.Time, error) {
|
|
secs, err := parseTime(s)
|
|
if err != nil {
|
|
return time.Time{}, fmt.Errorf("cannot parse %s: %w", s, err)
|
|
}
|
|
msecs := int64(secs * 1e3)
|
|
if msecs < minTimeMsecs {
|
|
msecs = 0
|
|
}
|
|
if msecs > maxTimeMsecs {
|
|
msecs = maxTimeMsecs
|
|
}
|
|
|
|
return time.Unix(0, msecs*int64(time.Millisecond)), nil
|
|
}
|