meta info store (#75)

- Feature: Added option `--gc-cache-attachment-store` which caches referenced attachments in cache records on disk for faster GC - default is `false`
- Feature: Added option `--gc-projectstore-attachment-store` which caches referenced attachments in project store oplogs on disk for faster GC - default is `false`

1 files changed, 16 insertions, 9 deletions

diff --git a/src/zenutil/basicfile.cpp b/src/zenutil/basicfile.cpp
index 266146ca1..174125069 100644
--- a/src/zenutil/basicfile.cpp
+++ b/src/zenutil/basicfile.cpp
@@ -372,7 +372,7 @@ BasicFile::Flush()
 }
 
 uint64_t
-BasicFile::FileSize()
+BasicFile::FileSize() const
 {
 #if ZEN_PLATFORM_WINDOWS
 	ULARGE_INTEGER liFileSize;
@@ -401,7 +401,7 @@ BasicFile::FileSize()
 }
 
 uint64_t
-BasicFile::FileSize(std::error_code& Ec)
+BasicFile::FileSize(std::error_code& Ec) const
 {
 #if ZEN_PLATFORM_WINDOWS
 	ULARGE_INTEGER liFileSize;
@@ -565,20 +565,27 @@ TemporaryFile::MoveTemporaryIntoPlace(std::filesystem::path FinalFileName, std::
 //////////////////////////////////////////////////////////////////////////
 
 void
-TemporaryFile::SafeWriteFile(std::filesystem::path Path, MemoryView Data)
+TemporaryFile::SafeWriteFile(const std::filesystem::path& Path, MemoryView Data)
 {
 	TemporaryFile	TempFile;
 	std::error_code Ec;
-	TempFile.CreateTemporary(Path.parent_path(), Ec);
+	SafeWriteFile(Path, Data, Ec);
 	if (Ec)
 	{
-		throw std::system_error(Ec, fmt::format("Failed to create temp file for file at '{}'", Path));
+		throw std::system_error(Ec, fmt::format("Failed to safely write file '{}'", Path));
 	}
-	TempFile.Write(Data, 0);
-	TempFile.MoveTemporaryIntoPlace(Path, Ec);
-	if (Ec)
+}
+
+void
+TemporaryFile::SafeWriteFile(const std::filesystem::path& Path, MemoryView Data, std::error_code& OutEc)
+{
+	TemporaryFile TempFile;
+	if (TempFile.CreateTemporary(Path.parent_path(), OutEc); !OutEc)
 	{
-		throw std::system_error(Ec, fmt::format("Failed to move temp file '{}' to '{}'", TempFile.GetPath(), Path));
+		if (TempFile.Write(Data, 0, OutEc); !OutEc)
+		{
+			TempFile.MoveTemporaryIntoPlace(Path, OutEc);
+		}
 	}
 }