Introduce substrate-demo

2026-05-31 22:41:02 +00:00 · 2018-02-20 15:53:55 +01:00
parent 990bd1480b
commit a5042dd9ae
449 changed files with 7802 additions and 1 deletions
@@ -0,0 +1,127 @@
+// Copyright 2017 Parity Technologies (UK) Ltd.
+// This file is part of Substrate Demo.
+
+// Substrate Demo 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.
+
+// Substrate Demo 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 Substrate Demo.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Substrate Demo CLI library.
+
+#![warn(missing_docs)]
+
+extern crate env_logger;
+extern crate ed25519;
+extern crate triehash;
+extern crate substrate_codec as codec;
+extern crate substrate_state_machine as state_machine;
+extern crate substrate_client as client;
+extern crate substrate_primitives as primitives;
+extern crate substrate_rpc_servers as rpc;
+extern crate demo_primitives;
+extern crate demo_executor;
+extern crate demo_runtime;
+
+#[macro_use]
+extern crate hex_literal;
+#[macro_use]
+extern crate clap;
+#[macro_use]
+extern crate error_chain;
+#[macro_use]
+extern crate log;
+
+pub mod error;
+
+use codec::Slicable;
+use demo_runtime::genesismap::{additional_storage_with_genesis, GenesisConfig};
+use client::genesis;
+
+/// Parse command line arguments and start the node.
+///
+/// IANA unassigned port ranges that we could use:
+/// 6717-6766		Unassigned
+/// 8504-8553		Unassigned
+/// 9556-9591		Unassigned
+/// 9803-9874		Unassigned
+/// 9926-9949		Unassigned
+pub fn run<I, T>(args: I) -> error::Result<()> where
+	I: IntoIterator<Item = T>,
+	T: Into<std::ffi::OsString> + Clone,
+{
+	let yaml = load_yaml!("./cli.yml");
+	let matches = clap::App::from_yaml(yaml).version(crate_version!()).get_matches_from_safe(args)?;
+
+	// TODO [ToDr] Split parameters parsing from actual execution.
+	let log_pattern = matches.value_of("log").unwrap_or("");
+	init_logger(log_pattern);
+
+	// Create client
+	let executor = demo_executor::Executor::new();
+	let mut storage = Default::default();
+	let god_key = hex!["3d866ec8a9190c8343c2fc593d21d8a6d0c5c4763aaab2349de3a6111d64d124"];
+
+	let genesis_config = GenesisConfig {
+		validators: vec![god_key.clone()],
+		authorities: vec![god_key.clone()],
+		balances: vec![(god_key.clone(), 1u64 << 63)].into_iter().collect(),
+		block_time: 5,			// 5 second block time.
+		session_length: 720,	// that's 1 hour per session.
+		sessions_per_era: 24,	// 24 hours per era.
+		bonding_duration: 90,	// 90 days per bond.
+		approval_ratio: 667,	// 66.7% approvals required for legislation.
+	};
+	let prepare_genesis = || {
+		storage = genesis_config.genesis_map();
+		let block = genesis::construct_genesis_block(&storage);
+		storage.extend(additional_storage_with_genesis(&block));
+		(primitives::block::Header::decode(&mut block.header.encode().as_ref()).expect("to_vec() always gives a valid serialisation; qed"), storage.into_iter().collect())
+	};
+	let client = client::new_in_mem(executor, prepare_genesis)?;
+
+	let address = "127.0.0.1:9933".parse().unwrap();
+	let handler = rpc::rpc_handler(client);
+	let server = rpc::start_http(&address, handler)?;
+
+	if let Some(_) = matches.subcommand_matches("collator") {
+		info!("Starting collator.");
+		server.wait();
+		return Ok(());
+	}
+
+	if let Some(_) = matches.subcommand_matches("validator") {
+		info!("Starting validator.");
+		server.wait();
+		return Ok(());
+	}
+
+	println!("No command given.\n");
+	let _ = clap::App::from_yaml(yaml).print_long_help();
+
+	Ok(())
+}
+
+fn init_logger(pattern: &str) {
+	let mut builder = env_logger::LogBuilder::new();
+	// Disable info logging by default for some modules:
+	builder.filter(Some("hyper"), log::LogLevelFilter::Warn);
+	// Enable info for others.
+	builder.filter(None, log::LogLevelFilter::Info);
+
+	if let Ok(lvl) = std::env::var("RUST_LOG") {
+		builder.parse(&lvl);
+	}
+
+	builder.parse(pattern);
+
+
+	builder.init().expect("Logger initialized only once.");
+}