Remove node/src/main.rs (#3969)

substrate/node/cli/bin/main.rs

@@ -0,0 +1,58 @@
+// Copyright 2018-2019 Parity Technologies (UK) Ltd.
+// This file is part of Substrate.
+
+// Substrate 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 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.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Substrate Node CLI
+
+#![warn(missing_docs)]
+
+use cli::VersionInfo;
+use futures::sync::oneshot;
+use futures::{future, Future};
+
+use std::cell::RefCell;
+
+// handles ctrl-c
+struct Exit;
+impl cli::IntoExit for Exit {
+	type Exit = future::MapErr<oneshot::Receiver<()>, fn(oneshot::Canceled) -> ()>;
+	fn into_exit(self) -> Self::Exit {
+		// can't use signal directly here because CtrlC takes only `Fn`.
+		let (exit_send, exit) = oneshot::channel();
+
+		let exit_send_cell = RefCell::new(Some(exit_send));
+		ctrlc::set_handler(move || {
+			if let Some(exit_send) = exit_send_cell.try_borrow_mut().expect("signal handler not reentrant; qed").take() {
+				exit_send.send(()).expect("Error sending exit notification");
+			}
+		}).expect("Error setting Ctrl-C handler");
+
+		exit.map_err(drop)
+	}
+}
+
+fn main() -> Result<(), cli::error::Error> {
+	let version = VersionInfo {
+		name: "Substrate Node",
+		commit: env!("VERGEN_SHA_SHORT"),
+		version: env!("CARGO_PKG_VERSION"),
+		executable_name: "substrate",
+		author: "Parity Technologies <admin@parity.io>",
+		description: "Generic substrate node",
+		support_url: "https://github.com/paritytech/substrate/issues/new",
+	};
+
+	node_cli::run(std::env::args(), Exit, version)
+}