ipam/cmd/subnet-show.go

/*
Copyright © 2023 Laura Kalb <dev@lauka.net>
*/
package cmd

import (
    "fmt"
    "net/netip"
    "os"
    "time"

    "github.com/spf13/cobra"
)

// showCmd represents the show command
var subnetshowCmd = &cobra.Command{
    Use:   "show subnet",
    Short: "Displays a subnet.",
    Long: `Displays a subnets details like name and vlan tag, 
aswell as a list of containing IP addresses`,
    Args:    cobra.ExactArgs(1),
    Aliases: []string{"s"},
    Example: "ipam subnet show 192.168.0.0/24\nipam subnet show 2001:db8::/64",
    Run: func(cmd *cobra.Command, args []string) {
        net, parseerr := netip.ParsePrefix(args[0])

        if parseerr != nil {
            fmt.Println("[ERROR]", parseerr)
            os.Exit(1)
        }

        if !SubnetExists(net) {
            fmt.Printf("[ERROR] no subnet found for prefix: %v\n", args[0])
            os.Exit(1)
        }

        subnet, subneterr := GetSubnet(net)
        if subneterr != nil {
            fmt.Println("[ERROR]", subneterr)
            os.Exit(1)
        }
        fmt.Printf("\n")
        fmt.Printf("Name:           %v\n", subnet.Name)
        fmt.Printf("Vlan:           %v\n", subnet.Vlan)
        fmt.Printf("Prefix:         %v\n", subnet.Subnet)
        fmt.Printf("Modified at:    %v\n", subnet.ChangedAt.Format(time.RFC1123))
        fmt.Printf("Modified by:    %v\n\n", subnet.ChangedBy)

        fmt.Printf("%v:\n", subnet.Subnet)
        for _, element := range subnet.Addresses {
            if element.FQDN == "" {
                fmt.Printf("\t%v\n", element.IP.String())
            } else {
                fmt.Printf("\t%v:  %v\n", element.IP.String(), element.FQDN)
            }
        }
    },
}

func init() {
    subnetCmd.AddCommand(subnetshowCmd)

    // Here you will define your flags and configuration settings.

    // Cobra supports Persistent Flags which will work for this command
    // and all subcommands, e.g.:
    // showCmd.PersistentFlags().String("foo", "", "A help for foo")

    // Cobra supports local flags which will only run when this command
    // is called directly, e.g.:
    // showCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
}