feat: support custom compat protocol name #42
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hanabi1224
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rkuhn
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May 19, 2023
src/behaviour.rs
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| @@ -26,6 +26,8 @@ use libp2p::core::either::EitherOutput; | |||
| use libp2p::core::{connection::ConnectionId, Multiaddr, PeerId}; | |||
| use libp2p::swarm::derive_prelude::{ConnectionClosed, DialFailure, FromSwarm, ListenFailure}; | |||
| #[cfg(feature = "compat")] | |||
| use libp2p::swarm::SubstreamProtocol; | |||
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please fold this into the following import
| impl UpgradeInfo for CompatMessage { | ||
| type Info = &'static [u8]; | ||
| type InfoIter = iter::Once<Self::Info>; | ||
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| fn protocol_info(&self) -> Self::InfoIter { | ||
| iter::once(b"/ipfs/bitswap/1.2.0") | ||
| unimplemented!() |
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This smells bad: why not instead remove this impl?
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It requires more refactoring to remove UpgradeInfo impl for CompatMessage
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That refactoring is the required proof that this unimplemented!() won’t panic at runtime, though. In other words, I find it reasonable to demand that a production ready library does not contain unimplemented!().
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That makes sense! However, it's been too long since I made the PR, and I do need some extra time to pick up the context and made the change.
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Changes:
go-bitswapcompatible nodelibipldto make life easier when there're version conflicts in downstream crates. (e.g.[email protected]depends on a differentcidversion fromfvm_ipld_blockstore) and it's not yet possible to upgradefvm_ipld_blockstore, see chore: upgradecid,multihash,libipld-corecrates filecoin-project/ref-fvm#1380 (comment)Background:
go-bitswapallows customizing the protocol name with itsSettings.PrefixAPI, e.g. lotus uses"/chain"prefix,rust-bitswapshould be capable of matching the protocol name incompatmode. Please let me know your feedback, thanks!