cli: enable BEEFY by default on test networks (#7293)

We consider BEEFY mature enough to run by default on all nodes
for test networks (Rococo/Wococo/Versi).

Right now, most nodes are not running it since it's opt-in using
--beefy flag. Switch to an opt-out model for test networks.

Replace --beefy flag from CLI with --no-beefy and have BEEFY
client start by default on test networks.

Signed-off-by: acatangiu <adrian@parity.io>

polkadot/cli/src/cli.rs

@@ -114,9 +114,10 @@ pub struct RunCmd {
 	#[arg(long = "grandpa-pause", num_args = 2)]
 	pub grandpa_pause: Vec<u32>,
 
-	/// Enable the BEEFY gadget (only on Rococo or Wococo for now).
+	/// Disable the BEEFY gadget
+	/// (currently enabled by default on Rococo, Wococo and Versi).
 	#[arg(long)]
-	pub beefy: bool,
+	pub no_beefy: bool,
 
 	/// Add the destination address to the jaeger agent.
 	///

polkadot/cli/src/command.rs

@@ -298,12 +298,9 @@ where
 		.map_err(Error::from)?;
 	let chain_spec = &runner.config().chain_spec;
 
-	// Disallow BEEFY on production networks.
-	if cli.run.beefy &&
-		(chain_spec.is_polkadot() || chain_spec.is_kusama() || chain_spec.is_westend())
-	{
-		return Err(Error::Other("BEEFY disallowed on production networks".to_string()))
-	}
+	// By default, enable BEEFY on test networks.
+	let enable_beefy = (chain_spec.is_rococo() || chain_spec.is_wococo() || chain_spec.is_versi()) &&
+		!cli.run.no_beefy;
 
 	set_default_ss58_version(chain_spec);
 
@@ -346,7 +343,7 @@ where
 			config,
 			service::IsCollator::No,
 			grandpa_pause,
-			cli.run.beefy,
+			enable_beefy,
 			jaeger_agent,
 			None,
 			false,