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# Description This changes the serialization of custom values within the plugin protocol to use MessagePack instead of bincode, removing the dependency on bincode entirely. Bincode does not seem to be very maintained anymore, and the externally tagged enum representation doesn't seem to always work now even though it should. Since we use MessagePack already anyway for the plugin protocol, this seems like an obvious choice. This uses the unnamed variant of the serialization rather than the named variant, which is what the plugin protocol in general uses. The unnamed variant does not include field names, which aren't really required here, so this should give us something that's more or less as efficient as bincode is. Should fix #13743. # User-Facing Changes - Will need to recompile plugins (but always do anyway) - Doesn't technically break the plugin protocol (custom value data is a black box / plugin implementation specific), but breaks compatibility between `nu-plugin-engine` and `nu-plugin` so they do need to both be updated to match. # Tests + Formatting All tests pass. # After Submitting - [ ] release notes |
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nu-plugin-protocol
This crate provides serde-compatible types for implementing the Nushell plugin protocol. It is primarily used by the nu-plugin family of crates, but can also be used separately as well.
The specifics of I/O and serialization are not included in this crate. Use serde_json and/or rmp-serde (with the named serialization) to turn the types in this crate into data in the wire format.