From 8518cc6e56ffda7d1fe929c29e43f1fd59a55ad6 Mon Sep 17 00:00:00 2001
From: Kyle Isom <kyle@imap.cc>
Date: Thu, 20 Nov 2025 18:14:33 -0800
Subject: [PATCH] lib: add DummyWriteCloser.

---
 lib/lib.go | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/lib/lib.go b/lib/lib.go
index 52d47e9..34a6bf5 100644
--- a/lib/lib.go
+++ b/lib/lib.go
@@ -5,6 +5,7 @@ import (
 	"encoding/hex"
 	"errors"
 	"fmt"
+	"io"
 	"os"
 	"path/filepath"
 	"strconv"
@@ -329,3 +330,16 @@ func HexEncode(b []byte, mode HexEncodeMode) string {
 		panic("invalid hex encode mode")
 	}
 }
+
+// DummyWriteCloser wraps an io.Writer in a struct with a no-op Close.
+type DummyWriteCloser struct {
+	w io.Writer
+}
+
+func (dwc *DummyWriteCloser) Write(p []byte) (int, error) {
+	return dwc.w.Write(p)
+}
+
+func (dwc *DummyWriteCloser) Close() error {
+	return nil
+}