pronounsfu/scripts/genid/main.go

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package genid
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import (
"fmt"
"time"
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"github.com/rs/xid"
"github.com/urfave/cli/v2"
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)
var Command = &cli.Command{
Name: "id",
Usage: "Generate a time-based ID",
Flags: []cli.Flag{
&cli.TimestampFlag{
Name: "timestamp",
Aliases: []string{"T"},
Usage: "The timestamp to generate an ID for (format: 2006-01-02T15:04:05)",
Layout: "2006-01-02T15:04:05",
},
&cli.UintFlag{
Name: "days-ago",
Aliases: []string{"D"},
Usage: "The number of days ago to generate an ID for",
Value: 0,
},
},
Action: run,
}
func run(c *cli.Context) error {
if t := c.Timestamp("timestamp"); t != nil {
fmt.Printf("ID for %v: %v\n", t.Format(time.RFC1123), xid.NewWithTime(*t))
return nil
}
if daysAgo := c.Uint("days-ago"); daysAgo != 0 {
t := time.Now().Add(time.Duration(-daysAgo) * 24 * time.Hour)
fmt.Printf("ID for %v days ago: %v\n", daysAgo, xid.NewWithTime(t))
return nil
}
fmt.Printf("ID for now: %v\n", xid.New())
return nil
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}