mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-06-13 00:01:09 +00:00
Ashley
614c6a743f
* Move subcommands from sc-cli to nodes * Add --build-sync-spec subcommand * Remove CHTs from snapshots * Keep ProvideChtRoots
37 lines
1.2 KiB
Rust
37 lines
1.2 KiB
Rust
// Copyright 2020 Parity Technologies (UK) Ltd.
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// This file is part of Substrate.
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// Substrate is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Substrate is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Substrate. If not, see <http://www.gnu.org/licenses/>.
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use sp_runtime::traits::Block as BlockT;
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use sp_blockchain::HeaderBackend;
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use std::sync::Arc;
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use sp_runtime::generic::BlockId;
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/// Build a `LightSyncState` from the CHT roots stored in a backend.
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pub fn build_light_sync_state<TBl, TCl>(
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client: Arc<TCl>,
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) -> Result<sc_chain_spec::LightSyncState<TBl>, sp_blockchain::Error>
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where
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TBl: BlockT,
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TCl: HeaderBackend<TBl>,
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{
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let finalized_hash = client.info().finalized_hash;
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let header = client.header(BlockId::Hash(finalized_hash))?.unwrap();
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Ok(sc_chain_spec::LightSyncState {
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header
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})
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}
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