isle/go/cmd/entrypoint/admin.go

package main

import (
	"fmt"
	"isle/admin"
	"os"
)

func readAdmin(path string) (admin.Admin, error) {

	if path == "-" {

		adm, err := admin.FromReader(os.Stdin)
		if err != nil {
			return admin.Admin{}, fmt.Errorf("parsing admin.json from stdin: %w", err)
		}

		return adm, nil
	}

	f, err := os.Open(path)
	if err != nil {
		return admin.Admin{}, fmt.Errorf("opening file: %w", err)
	}
	defer f.Close()

	return admin.FromReader(f)
}