cronplan
Cron expression parser for Amazon EventBridge.
Installation
go get github.com/winebarrel/[email protected]
Usage
package main
import (
"fmt"
"time"
"github.com/winebarrel/cronplan"
)
func main() {
cron, err := cronplan.Parse("0 10 * * ? *")
if err != nil {
panic(err)
}
fmt.Println(cron.Minute.Exps[0].Number) //=> 0
fmt.Println(cron.Hour.Exps[0].Number) //=> 10
fmt.Println(cron.String()) //=> "0 10 * * ? *"
fmt.Println(cron.Match(time.Date(2022, 11, 3, 9, 0, 0, 0, time.UTC)))
//=> false
fmt.Println(cron.Match(time.Date(2022, 11, 3, 10, 0, 0, 0, time.UTC)))
//=> true
fmt.Println(cron.Next(time.Date(2022, 11, 3, 10, 0, 0, 0, time.UTC)))
//=> 2022-11-03 10:00:00 +0000 UTC
fmt.Println(cron.Next(time.Date(2022, 11, 3, 11, 0, 0, 0, time.UTC)))
//=> 2022-11-04 10:00:00 +0000 UTC
fmt.Println(cron.NextN(time.Date(2022, 11, 3, 10, 0, 0, 0, time.UTC), 3))
//=> [2022-11-03 10:00:00 +0000 UTC 2022-11-04 10:00:00 +0000 UTC 2022-11-05 10:00:00 +0000 UTC]
}
cronplan CLI
CLI to show next triggers.
Installation
brew install winebarrel/cronplan/cronplan
Usage
Usage: cronplan [OPTION] CRON_EXPR
-h int
hour to add
-n int
number of next triggers (default 10)
-version
print version and exit
$ cronplan "*/10 10 ? * MON-FRI *"
Tue, 11 Oct 2022 10:00:00
Tue, 11 Oct 2022 10:10:00
Tue, 11 Oct 2022 10:20:00
Tue, 11 Oct 2022 10:30:00
Tue, 11 Oct 2022 10:40:00
Tue, 11 Oct 2022 10:50:00
Wed, 12 Oct 2022 10:00:00
Wed, 12 Oct 2022 10:10:00
Wed, 12 Oct 2022 10:20:00
Wed, 12 Oct 2022 10:30:00
$ cronplan -h -9 "*/10 10 ? * MON-FRI *"
Tue, 11 Oct 2022 01:00:00
Tue, 11 Oct 2022 01:10:00
Tue, 11 Oct 2022 01:20:00
Tue, 11 Oct 2022 01:30:00
Tue, 11 Oct 2022 01:40:00
Tue, 11 Oct 2022 01:50:00
Wed, 12 Oct 2022 01:00:00
Wed, 12 Oct 2022 01:10:00
Wed, 12 Oct 2022 01:20:00
Wed, 12 Oct 2022 01:30:00