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Decouples light-sync state from chain spec (#9491)

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* Decouples light-sync state from chain spec

This decouples the light-sync state from chain spec. First, the
light-sync state currently only works with BABE+Grandpa, so not
all *Substrate* based chains can use this feature. The next problem was
also that this pulled the `sc-consensus-babe` and `sc-finality-grandpa`
crate into `sc-chain-spec`.

If a chain now wants to support the light-sync state, it needs to add
the `LightSyncStateExtension` to the chain spec as an extension. This is
documented in the crate level docs of `sc-sync-state-rpc`. If this
extension is not available, `SyncStateRpc` fails at initialization.

* Fix compilation for browser

* Fmt
This commit is contained in:
Bastian Köcher
2021-08-04 15:38:14 +02:00
committed by GitHub
parent 2f4db88b41
commit 6e4d30e8ad
17 changed files with 211 additions and 149 deletions
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substrate/bin/node/cli/Cargo.toml
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@@ -77,6 +77,7 @@ sc-service = { version = "0.10.0-dev", default-features = false, path = "../../.
sc-tracing = { version = "4.0.0-dev", path = "../../../client/tracing" }
sc-telemetry = { version = "4.0.0-dev", path = "../../../client/telemetry" }
sc-authority-discovery = { version = "0.10.0-dev", path = "../../../client/authority-discovery" }
sc-sync-state-rpc = { version = "0.10.0-dev", path = "../../../client/sync-state-rpc" }
# frame dependencies
pallet-indices = { version = "4.0.0-dev", path = "../../../frame/indices" }