mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
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yjh
31e1329da0
* chore(cli): make cli display docs correctly * ".git/.scripts/commands/fmt/fmt.sh" --------- Co-authored-by: command-bot <>
108 lines
3.0 KiB
Rust
108 lines
3.0 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) Parity Technologies (UK) Ltd.
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// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
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// This program 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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// This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
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use crate::{
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error,
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params::{DatabaseParams, GenericNumber, PruningParams, SharedParams},
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CliConfiguration,
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};
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use clap::Parser;
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use log::info;
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use sc_client_api::{BlockBackend, HeaderBackend, UsageProvider};
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use sc_service::{chain_ops::export_blocks, config::DatabaseSource};
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use sp_runtime::traits::{Block as BlockT, Header as HeaderT};
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use std::{fmt::Debug, fs, io, path::PathBuf, str::FromStr, sync::Arc};
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/// The `export-blocks` command used to export blocks.
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#[derive(Debug, Clone, Parser)]
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pub struct ExportBlocksCmd {
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/// Output file name or stdout if unspecified.
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#[arg()]
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pub output: Option<PathBuf>,
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/// Specify starting block number.
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/// Default is 1.
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#[arg(long, value_name = "BLOCK")]
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pub from: Option<GenericNumber>,
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/// Specify last block number.
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/// Default is best block.
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#[arg(long, value_name = "BLOCK")]
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pub to: Option<GenericNumber>,
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/// Use binary output rather than JSON.
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#[arg(long)]
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pub binary: bool,
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#[allow(missing_docs)]
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#[clap(flatten)]
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pub shared_params: SharedParams,
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#[allow(missing_docs)]
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#[clap(flatten)]
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pub pruning_params: PruningParams,
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#[allow(missing_docs)]
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#[clap(flatten)]
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pub database_params: DatabaseParams,
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}
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impl ExportBlocksCmd {
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/// Run the export-blocks command
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pub async fn run<B, C>(
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&self,
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client: Arc<C>,
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database_config: DatabaseSource,
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) -> error::Result<()>
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where
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B: BlockT,
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C: HeaderBackend<B> + BlockBackend<B> + UsageProvider<B> + 'static,
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<<B::Header as HeaderT>::Number as FromStr>::Err: Debug,
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{
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if let Some(path) = database_config.path() {
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info!("DB path: {}", path.display());
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}
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let from = self.from.as_ref().and_then(|f| f.parse().ok()).unwrap_or(1u32);
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let to = self.to.as_ref().and_then(|t| t.parse().ok());
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let binary = self.binary;
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let file: Box<dyn io::Write> = match &self.output {
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Some(filename) => Box::new(fs::File::create(filename)?),
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None => Box::new(io::stdout()),
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};
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export_blocks(client, file, from.into(), to, binary).await.map_err(Into::into)
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}
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}
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impl CliConfiguration for ExportBlocksCmd {
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fn shared_params(&self) -> &SharedParams {
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&self.shared_params
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}
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fn pruning_params(&self) -> Option<&PruningParams> {
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Some(&self.pruning_params)
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}
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fn database_params(&self) -> Option<&DatabaseParams> {
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Some(&self.database_params)
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}
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}
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