Here we go again...

cmd/cli/main.go

@@ -0,0 +1,43 @@
+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)
+	_, 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
+		}),
+	)
+}
+
+func printValidationErrors(parserName string, errors ...types.FieldParseError) {
+	for _, fieldErr := range errors {
+		utils.PrintErr(text.FgRed, "[%s] Field '%s': %v", parserName, fieldErr.Field, fieldErr.Err)
+	}
+}