lunemec/nanny

package notifier

import (
    "fmt"
    "os"
    "time"

    "github.com/pkg/errors"
)

// StdErr implements Notifier interface for stderr output.
type StdErr struct{}

// Notify to stderr.
func (n *StdErr) Notify(msg Message) error {
    text := fmt.Sprintf("%s: %s (Meta: %v)\n", time.Now().Format(time.RFC3339), msg.Format(), msg.Meta)
    _, err := os.Stderr.WriteString(text)
    return errors.Wrap(err, "unable to notify via stderr")
}

// NotifyAllClear to stderr.
func (n *StdErr) NotifyAllClear(msg Message) error {
    text := fmt.Sprintf("%s: %s (Meta: %v)\n", time.Now().Format(time.RFC3339), msg.FormatAllClear(), msg.Meta)
    _, err := os.Stderr.WriteString(text)
    return errors.Wrap(err, "unable to notify via stderr")
}

// MarshalJSON marshals the stderr notifier into a "stderr" string
func (n *StdErr) String() string {
    return "stderr"
}