From 72b1797e2b65ad47f4dc8e9fab73b9aa170889b4 Mon Sep 17 00:00:00 2001
From: Dan Engelbrecht <dan.engelbrecht@epicgames.com>
Date: Fri, 7 Nov 2025 12:27:44 +0100
Subject: get oplog attachments (#622)

* add support for downloading individual attachments from an oplog
---
 src/zencore/basicfile.cpp | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'src/zencore/basicfile.cpp')

diff --git a/src/zencore/basicfile.cpp b/src/zencore/basicfile.cpp
index 6989da67e..2fa02937d 100644
--- a/src/zencore/basicfile.cpp
+++ b/src/zencore/basicfile.cpp
@@ -513,6 +513,30 @@ TemporaryFile::SafeWriteFile(const std::filesystem::path& Path, MemoryView Data,
 	}
 }
 
+void
+TemporaryFile::SafeWriteFile(const std::filesystem::path& Path, const CompositeBuffer& Data)
+{
+	std::error_code Ec;
+	SafeWriteFile(Path, Data, Ec);
+	if (Ec)
+	{
+		throw std::system_error(Ec, fmt::format("Failed to safely write file '{}'", Path));
+	}
+}
+
+void
+TemporaryFile::SafeWriteFile(const std::filesystem::path& Path, const CompositeBuffer& Data, std::error_code& OutEc)
+{
+	TemporaryFile TempFile;
+	if (TempFile.CreateTemporary(Path.parent_path(), OutEc); !OutEc)
+	{
+		if (TempFile.Write(Data, 0, OutEc); !OutEc)
+		{
+			TempFile.MoveTemporaryIntoPlace(Path, OutEc);
+		}
+	}
+}
+
 //////////////////////////////////////////////////////////////////////////
 
 LockFile::LockFile()
-- 
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