Files
pezkuwi-subxt/substrate/utils/frame/try-runtime/cli/src/commands/create_snapshot.rs
T
yjh ddb46a8aa0 refactor: define trait HashOutput for some Hash associate type (#14220)
* define trait `HashOutput`

* improve

* improve

* Update primitives/runtime/src/traits.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

* remove `Block::Hash: Ord`

* fmt

* add `MaybeFromStr`

* cleanup

* fix

* remove useless `HashOutput`

---------

Co-authored-by: Bastian Köcher <git@kchr.de>
2023-06-08 02:02:13 +00:00

79 lines
2.6 KiB
Rust

// This file is part of Substrate.
// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: Apache-2.0
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use crate::{build_executor, LiveState, SharedParams, State, LOG_TARGET};
use sc_executor::sp_wasm_interface::HostFunctions;
use sp_runtime::traits::{Block as BlockT, NumberFor};
use std::{fmt::Debug, str::FromStr};
use substrate_rpc_client::{ws_client, StateApi};
/// Configurations of the [`crate::Command::CreateSnapshot`].
#[derive(Debug, Clone, clap::Parser)]
pub struct CreateSnapshotCmd {
/// The source of the snapshot. Must be a remote node.
#[clap(flatten)]
pub from: LiveState,
/// The snapshot path to write to.
///
/// If not provided `<spec-name>-<spec-version>@<block-hash>.snap` will be used.
pub snapshot_path: Option<String>,
}
/// inner command for `Command::CreateSnapshot`.
pub(crate) async fn create_snapshot<Block, HostFns>(
shared: SharedParams,
command: CreateSnapshotCmd,
) -> sc_cli::Result<()>
where
Block: BlockT + serde::de::DeserializeOwned,
Block::Hash: serde::de::DeserializeOwned,
Block::Header: serde::de::DeserializeOwned,
<Block::Hash as FromStr>::Err: Debug,
NumberFor<Block>: FromStr,
<NumberFor<Block> as FromStr>::Err: Debug,
HostFns: HostFunctions,
{
let snapshot_path = command.snapshot_path;
if !matches!(shared.runtime, crate::Runtime::Existing) {
return Err("creating a snapshot is only possible with --runtime existing.".into())
}
let path = match snapshot_path {
Some(path) => path,
None => {
let rpc = ws_client(&command.from.uri).await.unwrap();
let remote_spec = StateApi::<Block::Hash>::runtime_version(&rpc, None).await.unwrap();
let path_str = format!(
"{}-{}@{}.snap",
remote_spec.spec_name.to_lowercase(),
remote_spec.spec_version,
command.from.at.clone().unwrap_or("latest".to_owned())
);
log::info!(target: LOG_TARGET, "snapshot path not provided (-s), using '{}'", path_str);
path_str.into()
},
};
let executor = build_executor::<HostFns>(&shared);
let _ = State::Live(command.from)
.into_ext::<Block, HostFns>(&shared, &executor, Some(path.into()), false)
.await?;
Ok(())
}