init: pristine aerc 0.20.0 source

worker/mbox/io.go

@@ -0,0 +1,49 @@
+package mboxer
+
+import (
+	"errors"
+	"io"
+	"time"
+
+	"git.sr.ht/~rjarry/aerc/lib/rfc822"
+	"git.sr.ht/~rjarry/aerc/models"
+	"github.com/emersion/go-mbox"
+)
+
+func Read(r io.Reader) ([]rfc822.RawMessage, error) {
+	mbr := mbox.NewReader(r)
+	messages := make([]rfc822.RawMessage, 0)
+	for {
+		msg, err := mbr.NextMessage()
+		if errors.Is(err, io.EOF) {
+			break
+		} else if err != nil {
+			return nil, err
+		}
+
+		content, err := io.ReadAll(msg)
+		if err != nil {
+			return nil, err
+		}
+
+		messages = append(messages, &message{
+			uid:     uidFromContents(content),
+			flags:   models.SeenFlag,
+			content: content,
+		})
+	}
+	return messages, nil
+}
+
+func Write(w io.Writer, reader io.Reader, from string, date time.Time) error {
+	wc := mbox.NewWriter(w)
+	mw, err := wc.CreateMessage(from, time.Now())
+	if err != nil {
+		return err
+	}
+	_, err = io.Copy(mw, reader)
+	if err != nil {
+		return err
+	}
+	return wc.Close()
+}