cli: introduce host-perf-check command (#4342)

polkadot/cli/src/error.rs

@@ -0,0 +1,36 @@
+// Copyright 2017-2021 Parity Technologies (UK) Ltd.
+// This file is part of Polkadot.
+
+// Polkadot 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.
+
+// Polkadot 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 Polkadot.  If not, see <http://www.gnu.org/licenses/>.
+
+#[derive(thiserror::Error, Debug)]
+pub enum Error {
+	#[error(transparent)]
+	PolkadotService(#[from] service::Error),
+
+	#[error(transparent)]
+	SubstrateCli(#[from] sc_cli::Error),
+
+	#[error(transparent)]
+	SubstrateService(#[from] sc_service::Error),
+
+	#[error(transparent)]
+	SubstrateTracing(#[from] sc_tracing::logging::Error),
+
+	#[error(transparent)]
+	PerfCheck(#[from] polkadot_performance_test::PerfCheckError),
+
+	#[error("Other: {0}")]
+	Other(String),
+}