Optimism Cli struct (#9416)

crates/optimism/cli/src/lib.rs

@@ -10,8 +10,79 @@
 // The `optimism` feature must be enabled to use this crate.
 #![cfg(feature = "optimism")]
 
+use chainspec::OpChainSpecParser;
+use clap::{command, value_parser, Parser};
+use commands::Commands;
+use reth_chainspec::ChainSpec;
+use reth_cli::chainspec::ChainSpecParser;
+use reth_cli_commands::node::NoArgs;
+use reth_node_core::{
+    args::{utils::chain_help, LogArgs},
+    version::{LONG_VERSION, SHORT_VERSION},
+};
+use std::{ffi::OsString, fmt, sync::Arc};
+
 /// Optimism chain specification parser.
 pub mod chainspec;
 /// Optimism CLI commands.
 pub mod commands;
 pub use commands::{import::ImportOpCommand, import_receipts::ImportReceiptsOpCommand};
+
+/// The main reth cli interface.
+///
+/// This is the entrypoint to the executable.
+#[derive(Debug, Parser)]
+#[command(author, version = SHORT_VERSION, long_version = LONG_VERSION, about = "Reth", long_about = None)]
+pub struct Cli<Ext: clap::Args + fmt::Debug = NoArgs> {
+    /// The command to run
+    #[command(subcommand)]
+    command: Commands<Ext>,
+
+    /// The chain this node is running.
+    ///
+    /// Possible values are either a built-in chain or the path to a chain specification file.
+    #[arg(
+        long,
+        value_name = "CHAIN_OR_PATH",
+        long_help = chain_help(),
+        default_value = OpChainSpecParser::SUPPORTED_CHAINS[0],
+        value_parser = OpChainSpecParser::default(),
+        global = true,
+    )]
+    chain: Arc<ChainSpec>,
+
+    /// Add a new instance of a node.
+    ///
+    /// Configures the ports of the node to avoid conflicts with the defaults.
+    /// This is useful for running multiple nodes on the same machine.
+    ///
+    /// Max number of instances is 200. It is chosen in a way so that it's not possible to have
+    /// port numbers that conflict with each other.
+    ///
+    /// Changes to the following port numbers:
+    /// - `DISCOVERY_PORT`: default + `instance` - 1
+    /// - `AUTH_PORT`: default + `instance` * 100 - 100
+    /// - `HTTP_RPC_PORT`: default - `instance` + 1
+    /// - `WS_RPC_PORT`: default + `instance` * 2 - 2
+    #[arg(long, value_name = "INSTANCE", global = true, default_value_t = 1, value_parser = value_parser!(u16).range(..=200))]
+    instance: u16,
+
+    #[command(flatten)]
+    logs: LogArgs,
+}
+
+impl Cli {
+    /// Parsers only the default CLI arguments
+    pub fn parse_args() -> Self {
+        Self::parse()
+    }
+
+    /// Parsers only the default CLI arguments from the given iterator
+    pub fn try_parse_args_from<I, T>(itr: I) -> Result<Self, clap::error::Error>
+    where
+        I: IntoIterator<Item = T>,
+        T: Into<OsString> + Clone,
+    {
+        Self::try_parse_from(itr)
+    }
+}