dodo/cmd/cli/main.go

package main

import (
	"fmt"
	"os"

	"github.com/aykhans/dodo/pkg/config"
	"github.com/aykhans/dodo/pkg/types"
	"github.com/aykhans/dodo/pkg/utils"
	"github.com/jedib0t/go-pretty/v6/text"
)

func main() {
	cliParser := config.NewConfigCLIParser(os.Args)
	cfg, err := cliParser.Parse()

	_ = utils.HandleErrorOrDie(err,
		utils.OnSentinelError(types.ErrCLINoArgs, func(err error) error {
			cliParser.PrintHelp()
			utils.PrintErrAndExit(text.FgRed, 1, "\nNo arguments provided.")
			return nil
		}),
		utils.OnCustomError(func(err types.CLIUnexpectedArgsError) error {
			cliParser.PrintHelp()
			utils.PrintErrAndExit(text.FgRed, 1, "\nUnexpected CLI arguments provided: %v", err.Args)
			return nil
		}),
		utils.OnCustomError(func(err types.FieldParseErrors) error {
			cliParser.PrintHelp()
			fmt.Println()
			printValidationErrors("CLI", err.Errors...)
			fmt.Println()
			os.Exit(1)
			return nil
		}),
	)

	fmt.Println(cfg)
}

func printValidationErrors(parserName string, errors ...types.FieldParseError) {
	for _, fieldErr := range errors {
		if fieldErr.Value == "" {
			utils.PrintErr(text.FgYellow, "[%s] Field '%s': %v", parserName, fieldErr.Field, fieldErr.Err)
		}
		utils.PrintErr(text.FgYellow, "[%s] Field '%s' (%s): %v", parserName, fieldErr.Field, fieldErr.Value, fieldErr.Err)
	}
}