3
0
Files
corteza/pkg/scheduler/helpers.go
2020-01-18 07:05:34 +01:00

70 lines
1.7 KiB
Go

package scheduler
import (
"time"
"github.com/getsentry/sentry-go"
"github.com/gorhill/cronexpr"
)
// OnInterval parses all given strings as crontab expressions (ii) and returns true if any of them matches current time
func OnInterval(ii ...string) bool {
match, err := onInterval(now(), ii...)
if err != nil {
sentry.CaptureException(err)
}
return match
}
func onInterval(now time.Time, ii ...string) (bool, error) {
var (
// This function will likely to be called exactly on a minute (00 sec) or a few milliseconds after
// Round it up to the smallest unit that cronexpr package supports
currTime = now.Truncate(time.Second)
// For cron expression reference we need to subtract 1ns
// this will cause Next() fn to include next nanosecond (if it matches)
cronRef = currTime.Add(-time.Nanosecond)
)
// At least one of the given expressions should match
for _, i := range ii {
exp, err := cronexpr.Parse(i)
if err != nil {
return false, err
}
return currTime.Equal(exp.Next(cronRef)), nil
}
return false, nil
}
// OnTimestamp parses all given strings as RFC3339 timestamps and returns true if any of them matches current time
func OnTimestamp(tt ...string) bool {
match, err := onTimestamp(now(), tt...)
if err != nil {
sentry.CaptureException(err)
}
return match
}
func onTimestamp(now time.Time, tt ...string) (bool, error) {
var (
// This function will likely to be called exactly on a minute (00 sec) or a few milliseconds after
// Round it up to the smallest unit that cronexpr package supports
currTime = now.Truncate(time.Second)
)
for _, t := range tt {
ts, err := time.Parse(time.RFC3339, t)
if err != nil {
return false, err
}
return currTime.Equal(ts.Round(time.Second)), nil
}
return false, nil
}