Companion for paritytech/cumulus#1370

Cargo.toml

@@ -39,7 +39,7 @@ runtime-benchmarks = [
 # crates.io
 array-bytes  = { version = "2.0" }
 async-trait  = { version = "0.1" }
-clap         = { version = "3.1", features = ["derive"] }
+clap         = { version = "3.2.5", features = ["derive"] }
 codec        = { package = "parity-scale-codec", version = "3.1" }
 futures      = { version = "0.3" }
 jsonrpsee    = { version = "0.13", features = ["server"] }

src/cli.rs

@@ -74,7 +74,7 @@ pub enum Subcommand {
 #[derive(Debug, Parser)]
 pub struct ExportGenesisStateCommand {
 	/// Output file name or stdout if unspecified.
-	#[clap(parse(from_os_str))]
+	#[clap(action)]
 	pub output: Option<PathBuf>,
 
 	/// Write output in binary. Default is to write in hex.
@@ -90,15 +90,15 @@ pub struct ExportGenesisStateCommand {
 #[derive(Debug, Parser)]
 pub struct ExportGenesisWasmCommand {
 	/// Output file name or stdout if unspecified.
-	#[clap(parse(from_os_str))]
+	#[clap(action)]
 	pub output: Option<PathBuf>,
 
 	/// Write output in binary. Default is to write in hex.
-	#[clap(short, long)]
+	#[clap(short, long, action)]
 	pub raw: bool,
 
 	/// The name of the chain for that the genesis wasm file should be exported.
-	#[clap(long)]
+	#[clap(long, action)]
 	pub chain: Option<String>,
 }