Revert paritytech/cumulus#895

Cargo.toml

@@ -40,12 +40,12 @@ runtime-benchmarks = [
 # crates.io
 array-bytes  = { version = "1.5" }
 async-trait  = { version = "0.1" }
+clap 		 = { version = "3.0", features = ["derive"] }
 codec        = { package = "parity-scale-codec", version = "2.3" }
 futures      = { version = "0.3" }
 jsonrpc-core = { version = "18.0" }
 log          = { version = "0.4" }
 serde        = { version = "1.0", features = ["derive"] }
-structopt    = { version = "0.3" }
 tempfile     = { version = "3.2" }
 
 # parachain

src/cli.rs

@@ -19,19 +19,19 @@
 // --- std ---
 use std::path::PathBuf;
 // --- crates.io ---
-use structopt::StructOpt;
+use clap::{AppSettings, Parser};
 // --- darwinia-network ---
 use crate::chain_spec;
 
 /// Sub-commands supported by the collator.
-#[derive(Debug, StructOpt)]
+#[derive(Debug, clap::Subcommand)]
 pub enum Subcommand {
 	/// Export the genesis state of the parachain.
-	#[structopt(name = "export-genesis-state")]
+	#[clap(name = "export-genesis-state")]
 	ExportGenesisState(ExportGenesisStateCommand),
 
 	/// Export the genesis wasm of the parachain.
-	#[structopt(name = "export-genesis-wasm")]
+	#[clap(name = "export-genesis-wasm")]
 	ExportGenesisWasm(ExportGenesisWasmCommand),
 
 	/// Build a chain specification.
@@ -69,52 +69,52 @@ pub enum Subcommand {
 }
 
 /// Command for exporting the genesis state of the parachain
-#[derive(Debug, StructOpt)]
+#[derive(Debug, Parser)]
 pub struct ExportGenesisStateCommand {
 	/// Output file name or stdout if unspecified.
-	#[structopt(parse(from_os_str))]
+	#[clap(parse(from_os_str))]
 	pub output: Option<PathBuf>,
 
 	/// Write output in binary. Default is to write in hex.
-	#[structopt(long)]
+	#[clap(long)]
 	pub raw: bool,
 
 	/// The name of the chain for that the genesis state should be exported.
-	#[structopt(long)]
+	#[clap(long)]
 	pub chain: Option<String>,
 }
 
 /// Command for exporting the genesis wasm file.
-#[derive(Debug, StructOpt)]
+#[derive(Debug, Parser)]
 pub struct ExportGenesisWasmCommand {
 	/// Output file name or stdout if unspecified.
-	#[structopt(parse(from_os_str))]
+	#[clap(parse(from_os_str))]
 	pub output: Option<PathBuf>,
 
 	/// Write output in binary. Default is to write in hex.
-	#[structopt(short, long)]
+	#[clap(short, long)]
 	pub raw: bool,
 
 	/// The name of the chain for that the genesis wasm file should be exported.
-	#[structopt(long)]
+	#[clap(long)]
 	pub chain: Option<String>,
 }
 
-#[derive(Debug, StructOpt)]
-#[structopt(settings = &[
-	structopt::clap::AppSettings::GlobalVersion,
-	structopt::clap::AppSettings::ArgsNegateSubcommands,
-	structopt::clap::AppSettings::SubcommandsNegateReqs,
-])]
+#[derive(Debug, Parser)]
+#[clap(setting(
+	AppSettings::PropagateVersion |
+	AppSettings::ArgsNegateSubcommands |
+	AppSettings::SubcommandsNegateReqs,
+))]
 pub struct Cli {
-	#[structopt(subcommand)]
+	#[clap(subcommand)]
 	pub subcommand: Option<Subcommand>,
 
-	#[structopt(flatten)]
+	#[clap(flatten)]
 	pub run: cumulus_client_cli::RunCmd,
 
 	/// Relay chain arguments
-	#[structopt(raw = true)]
+	#[clap(raw = true)]
 	pub relay_chain_args: Vec<String>,
 }
 
@@ -144,7 +144,7 @@ impl RelayChainCli {
 		Self {
 			base_path,
 			chain_id,
-			base: polkadot_cli::RunCmd::from_iter(relay_chain_args),
+			base: polkadot_cli::RunCmd::parse_from(relay_chain_args),
 		}
 	}
 }