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clap::{Parser, Subcommand}; + +#[derive(Debug, Parser)] +#[command(author, version, about, long_about = None)] +pub struct Cli { + #[command(subcommand)] + pub command: Commands, +} + +#[derive(Debug, Subcommand)] +pub enum Commands { + /// Start the node + #[command(name = "node")] + Node(NodeCommand), +} + +#[derive(Debug, Parser)] +pub struct NodeCommand { + /// Verbosity level + #[arg(short, long, default_value_t = 3)] + pub verbosity: u8, +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_cli_node_command() { + let cli = Cli::parse_from(["program", "node", "--verbosity", "2"]); + + match cli.command { + Commands::Node(cmd) => { + assert_eq!(cmd.verbosity, 2); + } + } + } +} diff --git a/bin/ream/src/lib.rs b/bin/ream/src/lib.rs new file mode 100644 index 0000000..4f77372 --- /dev/null +++ b/bin/ream/src/lib.rs @@ -0,0 +1 @@ +pub mod cli; diff --git a/bin/ream/src/main.rs b/bin/ream/src/main.rs index e7a11a9..04f2c0d 100644 --- a/bin/ream/src/main.rs +++ b/bin/ream/src/main.rs @@ -1,3 +1,13 @@ +use clap::Parser; + +use ream::cli::{Cli, Commands}; + fn main() { - println!("Hello, world!"); + let cli = Cli::parse(); + + match cli.command { + Commands::Node(cmd) => { + println!("Starting node with verbosity {}", cmd.verbosity); + } + } }