Added files.

imapclient/copy.go

@@ -0,0 +1,37 @@
+package imapclient
+
+import (
+	"fmt"
+
+	"github.com/emersion/go-imap/v2"
+	"github.com/emersion/go-imap/v2/internal/imapwire"
+)
+
+// Copy sends a COPY command.
+func (c *Client) Copy(numSet imap.NumSet, mailbox string) *CopyCommand {
+	cmd := &CopyCommand{}
+	enc := c.beginCommand(uidCmdName("COPY", imapwire.NumSetKind(numSet)), cmd)
+	enc.SP().NumSet(numSet).SP().Mailbox(mailbox)
+	enc.end()
+	return cmd
+}
+
+// CopyCommand is a COPY command.
+type CopyCommand struct {
+	commandBase
+	data imap.CopyData
+}
+
+func (cmd *CopyCommand) Wait() (*imap.CopyData, error) {
+	return &cmd.data, cmd.wait()
+}
+
+func readRespCodeCopyUID(dec *imapwire.Decoder) (uidValidity uint32, srcUIDs, dstUIDs imap.UIDSet, err error) {
+	if !dec.ExpectNumber(&uidValidity) || !dec.ExpectSP() || !dec.ExpectUIDSet(&srcUIDs) || !dec.ExpectSP() || !dec.ExpectUIDSet(&dstUIDs) {
+		return 0, nil, nil, dec.Err()
+	}
+	if srcUIDs.Dynamic() || dstUIDs.Dynamic() {
+		return 0, nil, nil, fmt.Errorf("imapclient: server returned dynamic number set in COPYUID response")
+	}
+	return uidValidity, srcUIDs, dstUIDs, nil
+}