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use crate::error;
use crate::params::{BlockNumber, PruningParams, SharedParams};
use crate::CliConfiguration;
use sc_service::{Configuration, ServiceBuilderCommand};
use sp_runtime::traits::{Block as BlockT, Header as HeaderT};
use std::fmt::Debug;
use structopt::StructOpt;
#[derive(Debug, StructOpt, Clone)]
pub struct RevertCmd {
#[structopt(default_value = "256")]
pub num: BlockNumber,
#[allow(missing_docs)]
#[structopt(flatten)]
pub shared_params: SharedParams,
#[allow(missing_docs)]
#[structopt(flatten)]
pub pruning_params: PruningParams,
}
impl RevertCmd {
pub fn run<B, BC, BB>(&self, config: Configuration, builder: B) -> error::Result<()>
where
B: FnOnce(Configuration) -> Result<BC, sc_service::error::Error>,
BC: ServiceBuilderCommand<Block = BB> + Unpin,
BB: sp_runtime::traits::Block + Debug,
<<<BB as BlockT>::Header as HeaderT>::Number as std::str::FromStr>::Err: std::fmt::Debug,
<BB as BlockT>::Hash: std::str::FromStr,
{
let blocks = self.num.parse()?;
builder(config)?.revert_chain(blocks)?;
Ok(())
}
}
impl CliConfiguration for RevertCmd {
fn shared_params(&self) -> &SharedParams {
&self.shared_params
}
fn pruning_params(&self) -> Option<&PruningParams> {
Some(&self.pruning_params)
}
}