mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-05-07 15:28:02 +00:00
Arkadiy Paronyan
6c47b130e8
* Handle piping error for commands that output to stdout * Apply suggestions from code review Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
84 lines
2.6 KiB
Rust
84 lines
2.6 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) 2020 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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CliConfiguration, error, params::{PruningParams, SharedParams, BlockNumberOrHash},
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};
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use log::info;
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use sc_service::{Configuration, ServiceBuilderCommand};
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use sp_runtime::traits::{Block as BlockT, NumberFor};
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use std::{fmt::Debug, str::FromStr, io::Write};
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use structopt::StructOpt;
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/// The `export-state` command used to export the state of a given block into
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/// a chain spec.
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#[derive(Debug, StructOpt, Clone)]
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pub struct ExportStateCmd {
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/// Block hash or number.
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#[structopt(value_name = "HASH or NUMBER")]
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pub input: Option<BlockNumberOrHash>,
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#[allow(missing_docs)]
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#[structopt(flatten)]
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pub shared_params: SharedParams,
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#[allow(missing_docs)]
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#[structopt(flatten)]
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pub pruning_params: PruningParams,
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}
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impl ExportStateCmd {
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/// Run the `export-state` command
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pub fn run<B, BC, BB>(
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&self,
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config: Configuration,
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builder: B,
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) -> error::Result<()>
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where
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B: FnOnce(Configuration) -> Result<BC, sc_service::error::Error>,
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BC: ServiceBuilderCommand<Block = BB> + Unpin,
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BB: BlockT + Debug,
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<NumberFor<BB> as FromStr>::Err: std::fmt::Debug,
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BB::Hash: FromStr,
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<BB::Hash as FromStr>::Err: std::fmt::Debug,
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{
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info!("Exporting raw state...");
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let mut input_spec = config.chain_spec.cloned_box();
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let block_id = self.input.clone().map(|b| b.parse()).transpose()?;
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let raw_state = builder(config)?.export_raw_state(block_id)?;
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input_spec.set_storage(raw_state);
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info!("Generating new chain spec...");
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let json = sc_service::chain_ops::build_spec(&*input_spec, true)?;
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if std::io::stdout().write_all(json.as_bytes()).is_err() {
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let _ = std::io::stderr().write_all(b"Error writing to stdout\n");
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}
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Ok(())
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}
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}
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impl CliConfiguration for ExportStateCmd {
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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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}
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