omissis/goarkitect

package cmd

import (
    "fmt"

    "github.com/spf13/cobra"

    "github.com/omissis/goarkitect/cmd/cmdutil"
    jsonx "github.com/omissis/goarkitect/internal/x/json"
    logx "github.com/omissis/goarkitect/internal/x/log"
)

func NewVersionCommand(versions map[string]string) *cobra.Command {
    return &cobra.Command{
        Use:   "version",
        Short: "Display version information about goarkitect",
        Args:  cobra.ExactArgs(0),
        RunE: func(cmd *cobra.Command, _ []string) error {
            output := cmd.Flag("output").Value.String()

            switch output {
            case "text":
                for k, v := range versions {
                    fmt.Printf("%s: %s\n", k, v)
                }
            case "json":
                jv, jerr := jsonx.Marshal(versions)
                if jerr != nil {
                    logx.Fatal(jerr)
                }

                fmt.Println(jv)
            default:
                logx.Fatal(fmt.Errorf("'%s': %w", output, cmdutil.ErrUnknownOutputFormat))
            }

            return nil
        },
    }
}