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BABE's revert procedure (#11022)

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* First rough draft for BABE revert

* Proper babe revert test

* Cleanup

* Test trivial cleanup

* Fix to make clippy happy

* Check polkadot companion

* Check cumulus companion

* Remove babe's blocks weight on revert

* Handle "empty" blockchain edge case

* Run companions

* Simplify the filter predicate

* Saturating sub is not required

* Run pipeline

* Run pipeline again...
This commit is contained in:
Davide Galassi
2022-03-24 09:51:55 +01:00
committed by GitHub
parent 208be86934
commit c534e00ffc
7 changed files with 314 additions and 22 deletions
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substrate/client/cli/src/commands/revert_cmd.rs
+14 -2
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@@ -24,7 +24,7 @@ use crate::{
use clap::Parser;
use sc_client_api::{Backend, UsageProvider};
use sc_service::chain_ops::revert_chain;
use sp_runtime::traits::{Block as BlockT, Header as HeaderT};
use sp_runtime::traits::{Block as BlockT, Header as HeaderT, NumberFor};
use std::{fmt::Debug, str::FromStr, sync::Arc};
/// The `revert` command used revert the chain to a previous state.
@@ -43,9 +43,18 @@ pub struct RevertCmd {
pub pruning_params: PruningParams,
}
/// Revert handler for auxiliary data (e.g. consensus).
type AuxRevertHandler<C, BA, B> =
Box<dyn FnOnce(Arc<C>, Arc<BA>, NumberFor<B>) -> error::Result<()>>;
impl RevertCmd {
/// Run the revert command
pub async fn run<B, BA, C>(&self, client: Arc<C>, backend: Arc<BA>) -> error::Result<()>
pub async fn run<B, BA, C>(
&self,
client: Arc<C>,
backend: Arc<BA>,
aux_revert: Option<AuxRevertHandler<C, BA, B>>,
) -> error::Result<()>
where
B: BlockT,
BA: Backend<B>,
@@ -53,6 +62,9 @@ impl RevertCmd {
<<<B as BlockT>::Header as HeaderT>::Number as FromStr>::Err: Debug,
{
let blocks = self.num.parse()?;
if let Some(aux_revert) = aux_revert {
aux_revert(client.clone(), backend.clone(), blocks)?;
}
revert_chain(client, backend, blocks)?;
Ok(())