codama-cli 0.7.3

Command-line interface for Codama
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use clap::{Parser, Subcommand};
use codama::Codama;
use codama_errors::CodamaResult;
use std::path::PathBuf;

#[derive(Parser)]
#[command(author, version, about, long_about = None)]
struct Cli {
    #[command(subcommand)]
    command: Commands,
}

#[derive(Subcommand)]
enum Commands {
    /// Generate IDL from a Rust project
    #[command(name = "generate-idl")]
    GenerateIdl {
        /// Path to the Rust project (defaults to current directory)
        #[arg(default_value = ".")]
        path: PathBuf,

        /// Output file path
        #[arg(short, long)]
        output: Option<PathBuf>,

        /// Prettyprint the JSON output
        #[arg(short, long)]
        pretty: bool,
    },
}

fn main() -> CodamaResult<()> {
    let cli = Cli::parse();

    match cli.command {
        Commands::GenerateIdl {
            path,
            output,
            pretty,
        } => {
            let codama = Codama::load(&path)?;
            let idl = codama.get_idl()?;

            let json = if pretty {
                serde_json::to_string_pretty(&idl)?
            } else {
                serde_json::to_string(&idl)?
            };

            match output {
                Some(output_path) => {
                    std::fs::write(&output_path, &json)?;
                    eprintln!("✓ IDL written to: {}", output_path.display());
                }
                None => {
                    println!("{}", json);
                }
            }
        }
    }

    Ok(())
}