*: Add scaffolding and integration for core/authority-discovery module

Author: mxinden

Cargo.lock

@@ -63,6 +63,7 @@ members = [
 	"core/utils/fork-tree",
 	"core/utils/wasm-builder",
 	"core/utils/wasm-builder-runner",
+	"core/authority-discovery",
 	"srml/support",
 	"srml/support/procedural",
 	"srml/support/procedural/tools",

Cargo.toml

@@ -0,0 +1,26 @@
+[package]
+name = "substrate-authority-discovery"
+version = "2.0.0"
+authors = ["Parity Technologies <[email protected]>"]
+edition = "2018"
+build = "build.rs"
+
+[build-dependencies]
+prost-build = "0.5"
+
+[dependencies]
+network = { package = "substrate-network", path = "../../core/network" }
+sr-primitives = { path = "../../core/sr-primitives" }
+primitives = { package = "substrate-primitives", path = "../primitives" }
+client = { package = "substrate-client", path = "../../core/client" }
+authority-discovery-primitives = { package = "substrate-authority-discovery-primitives", path = "./primitives", default-features = false }
+codec = { package = "parity-scale-codec", default-features = false, version = "1.0.3" }
+futures = "0.1.17"
+tokio-timer = "0.2"
+keystore = { package = "substrate-keystore", path = "../../core/keystore" }
+libp2p = { version = "0.12.0", default-features = false, features = ["secp256k1", "libp2p-websocket"] }
+serde_json = "1.0"
+log = "0.4"
+derive_more = "0.14.0"
+prost = "0.5"
+bytes = "0.4"

core/authority-discovery/Cargo.toml

@@ -0,0 +1,3 @@
+fn main() {
+	prost_build::compile_protos(&["src/schema/dht.proto"], &["src/schema"]).unwrap();
+}

core/authority-discovery/build.rs

@@ -0,0 +1,24 @@
+// Copyright 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/>.
+
+//! Authority discovery errors.
+
+/// AuthorityDiscovery Result.
+pub type Result<T> = std::result::Result<T, Error>;
+
+#[derive(Debug, derive_more::Display, derive_more::From)]
+pub enum Error {
+}