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// This file is part of Substrate.
// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
use crate::{
error,
params::{ImportParams, SharedParams},
CliConfiguration,
};
use clap::Parser;
use sc_client_api::HeaderBackend;
use sc_service::chain_ops::import_blocks;
use sp_runtime::traits::Block as BlockT;
use std::{
fmt::Debug,
fs,
io::{self, Read},
path::PathBuf,
sync::Arc,
};
/// The `import-blocks` command used to import blocks.
#[derive(Debug, Parser)]
pub struct ImportBlocksCmd {
/// Input file or stdin if unspecified.
#[arg()]
pub input: Option<PathBuf>,
/// The default number of 64KB pages to ever allocate for Wasm execution.
/// Don't alter this unless you know what you're doing.
#[arg(long, value_name = "COUNT")]
pub default_heap_pages: Option<u32>,
/// Try importing blocks from binary format rather than JSON.
#[arg(long)]
pub binary: bool,
#[allow(missing_docs)]
#[clap(flatten)]
pub shared_params: SharedParams,
#[allow(missing_docs)]
#[clap(flatten)]
pub import_params: ImportParams,
}
impl ImportBlocksCmd {
/// Run the import-blocks command
pub async fn run<B, C, IQ>(&self, client: Arc<C>, import_queue: IQ) -> error::Result<()>
where
C: HeaderBackend<B> + Send + Sync + 'static,
B: BlockT + for<'de> serde::Deserialize<'de>,
IQ: sc_service::ImportQueue<B> + 'static,
{
let file: Box<dyn Read + Send> = match &self.input {
Some(filename) => Box::new(fs::File::open(filename)?),
None => Box::new(io::stdin()),
};
import_blocks(client, import_queue, file, false, self.binary)
.await
.map_err(Into::into)
}
}
impl CliConfiguration for ImportBlocksCmd {
fn shared_params(&self) -> &SharedParams {
&self.shared_params
}
fn import_params(&self) -> Option<&ImportParams> {
Some(&self.import_params)
}
}