init: pristine aerc 0.20.0 source

lib/send/jmap.go

@@ -0,0 +1,41 @@
+package send
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/emersion/go-message/mail"
+
+	"git.sr.ht/~rjarry/aerc/worker/types"
+)
+
+func newJmapSender(
+	worker *types.Worker, from *mail.Address, rcpts []*mail.Address,
+	copyTo []string,
+) (io.WriteCloser, error) {
+	var writer io.WriteCloser
+	done := make(chan error)
+
+	worker.PostAction(
+		&types.StartSendingMessage{From: from, Rcpts: rcpts, CopyTo: copyTo},
+		func(msg types.WorkerMessage) {
+			switch msg := msg.(type) {
+			case *types.Done:
+				return
+			case *types.Unsupported:
+				done <- fmt.Errorf("unsupported by worker")
+			case *types.Error:
+				done <- msg.Error
+			case *types.MessageWriter:
+				writer = msg.Writer
+			default:
+				done <- fmt.Errorf("unexpected worker message: %#v", msg)
+			}
+			close(done)
+		},
+	)
+
+	err := <-done
+
+	return writer, err
+}