feat: initial cli abstraction

Cargo.toml

@@ -14,6 +14,7 @@ members = [
     "crates/blockchain-tree/",
     "crates/blockchain-tree-api/",
     "crates/chainspec/",
+    "crates/cli/cli/",
     "crates/cli/commands/",
     "crates/cli/runner/",
     "crates/config/",
@@ -258,6 +259,7 @@ reth-beacon-consensus = { path = "crates/consensus/beacon" }
 reth-blockchain-tree = { path = "crates/blockchain-tree" }
 reth-blockchain-tree-api = { path = "crates/blockchain-tree-api" }
 reth-chainspec = { path = "crates/chainspec" }
+reth-cli = { path = "crates/cli/cli" }
 reth-cli-commands = { path = "crates/cli/commands" }
 reth-cli-runner = { path = "crates/cli/runner" }
 reth-codecs = { path = "crates/storage/codecs" }

crates/cli/cli/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "reth-cli"
+version.workspace = true
+edition.workspace = true
+rust-version.workspace = true
+license.workspace = true
+homepage.workspace = true
+repository.workspace = true
+
+[lints]

crates/cli/cli/src/lib.rs

@@ -0,0 +1,25 @@
+//! Cli abstraction for reth based nodes.
+
+#![doc(
+    html_logo_url = "https://raw.githubusercontent.com/paradigmxyz/reth/main/assets/reth-docs.png",
+    html_favicon_url = "https://avatars0.githubusercontent.com/u/97369466?s=256",
+    issue_tracker_base_url = "https://github.com/paradigmxyz/reth/issues/"
+)]
+#![cfg_attr(not(test), warn(unused_crate_dependencies))]
+#![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]
+
+use std::borrow::Cow;
+
+/// Reth based node cli.
+///
+/// This trait is supposed to be implemented by the main struct of the CLI.
+///
+/// It provides commonly used functionality for running commands and information about the CL, such
+/// as the name and version.
+pub trait RethCli: Sized {
+    /// The name of the implementation, eg. `reth`, `op-reth`, etc.
+    fn name(&self) -> Cow<'static, str>;
+
+    /// The version of the node, such as `reth/v1.0.0`
+    fn version(&self) -> Cow<'static, str>;
+}