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CSHARP-5707: Use standard RID paths in MongoDB.Driver.Encryption packaging #1782
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@adelinowona
adelinowona
commented
Sep 30, 2025
- Local testing: Verified that when an application consuming the encryption package is published for a specific platform, the correct native library is automatically copied to the publish output directory
- Cross-platform validation: Used Docker containers to test applications on different target platforms, confirming they can successfully locate and load the appropriate native libraries
- Ensured no NETSDK1152 errors occur during builds targeting specific Runtime Identifiers (RIDs)
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Added explicit linux-musl-x64 RID mapping to ensure correct native library selection
During local testing, I discovered that MSBuild's RID fallback mechanism was causing incorrect library resolution. According to the RID compatibility graph, linux-musl-x64 is compatible with linux-x64, which caused MSBuild to use the linux-x64 native library as a fallback for linux-musl-x64 targets.
Since we provide a dedicated native library built specifically for linux-musl-x64, this change ensures that the platform-specific library is selected instead of relying on the fallback mechanism.
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Switched to PreserveNewest as it follows MSBuild best practices by only copying files when they've been modified, rather than copying on every build. While this should theoretically improve build performance, the impact will be negligible given our small number of native libraries. Made the change for consistency with recommended practices.
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The macOS paths remain unchanged because our packaged library is a universal binary that supports both arm64 and x64 architectures. According to MSBuild's RID compatibility fallback graph, both osx-x64 and osx-arm64 fall back to osx, so the current structure already handles both platforms correctly without requiring separate RID-specific paths.
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From my understanding this target file provides backward compatibility for older, non-SDK-style projects (e.g., .NET Framework with packages.config) that do not automatically handle native assets from the 'runtimes' folder.
The condition ensures this logic ONLY runs for non-SDK-style projects. Modern .NET SDK projects (which set 'UsingMicrosoftNETSdk' to 'true') will handle native asset copying automatically based on the RID.