mctl/cmd/run.go

/*
Copyright © 2025 Jake jake.young.dev@gmail.com
*/
package cmd

import (
	"errors"
	"fmt"
	"strings"

	"code.jakeyoungdev.com/jake/mctl/client"
	"github.com/spf13/cobra"
	"github.com/spf13/viper"
)

// runCmd represents the run command
var runCmd = &cobra.Command{
	Use:          "run <name> args...",
	Example:      "mctl run savedcmd 63 jake",
	SilenceUsage: true,
	Short:        "Runs a previously saved command with supplied arguments on remote server",
	Long: `Loads a saved command, injects the supplied arguments into the command, and sends the command to the remove server
			printing the response`,
	Run: func(cmd *cobra.Command, args []string) {
		//check for command map
		var cm map[string]any
		cmdMap := viper.Get("customcmd")
		if cmdMap == nil {
			cm = make(map[string]any, 0)
		} else {
			cm = cmdMap.(map[string]any)
		}
		//is this an existing command
		cmdRun, ok := cm[args[0]]
		if !ok {
			fmt.Printf("command %s not found", args[0])
			return
		}

		//convert arguments to interface
		var nargs []any
		for _, a := range args[1:] {
			nargs = append(nargs, a)
		}

		//inject arguments
		fixed := fmt.Sprintf(cmdRun.(string), nargs...)
		fmt.Printf("Running saved command %s\n", fixed)

		//create client and send command
		cli, err := client.New()
		cobra.CheckErr(err)
		defer cli.Close()

		res, err := cli.Command(fixed)
		cobra.CheckErr(err)

		fmt.Println(res)
	},
	PreRunE: func(cmd *cobra.Command, args []string) error {
		//ensure configuration has been setup
		if viper.Get("server") == "" || viper.Get("password") == "" || viper.Get("port") == 0 {
			return errors.New("the 'config' command must be run before you can interact with servers")
		}

		//ensure we have a command name
		al := len(args)
		if al == 0 {
			return errors.New("name argument is required")
		}

		cmdMap := viper.Get("customcmd").(map[string]any)
		count := strings.Count(cmdMap[args[0]].(string), "%s")

		//make sure enough arguments are sent to fill command placeholders
		if al < count+1 {
			return fmt.Errorf("not enough arguments to populate command. Supplied: %d, Needed: %d", al-1, count)
		}
		return nil
	},
}

func init() {
	rootCmd.AddCommand(runCmd)
}