hd-cli 0.2.0

CLI binary for hyperdocker - the `hd` command
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//! # hd-cli
//!
//! CLI binary for hyperdocker -- the `hd` command.
//!
//! This is the main entry point for the hyperdocker tool. It provides
//! subcommands for creating, starting, stopping, and inspecting environments:
//!
//! - `hd init` -- scaffold a new `hd.toml` in the current directory
//! - `hd up` -- build and start the environment
//! - `hd down` -- stop the environment
//! - `hd status` -- show environment status
//! - `hd exec <cmd>` -- run a command inside the sandbox
//! - `hd ingest <Dockerfile>` -- translate a Dockerfile to `hd.toml`
//! - `hd lock` -- generate or update `hd.lock`
//! - `hd dag show` -- inspect the Merkle DAG
//! - `hd cas stats|gc` -- CAS storage management
//!
//! ## Installation
//!
//! ```sh
//! cargo install hd-cli
//! ```

use clap::{Parser, Subcommand};

mod commands;
mod render;

#[derive(Parser)]
#[command(name = "hd", about = "Hyperdocker — incremental container runtime")]
#[command(version)]
struct Cli {
    #[command(subcommand)]
    command: Commands,
}

#[derive(Subcommand)]
enum Commands {
    /// Create a new hd.toml in the current directory
    Init,
    /// Start environment from hd.toml
    Up,
    /// Stop the environment
    Down,
    /// Show environment status
    Status,
    /// Run a command in the sandbox
    Exec {
        /// Command to run
        #[arg(trailing_var_arg = true)]
        cmd: Vec<String>,
    },
    /// Translate a Dockerfile into hd.toml
    Ingest {
        /// Path to Dockerfile
        path: String,
    },
    /// Generate or update hd.lock
    Lock,
    /// Inspect the DAG
    Dag {
        #[command(subcommand)]
        action: DagAction,
    },
    /// CAS management
    Cas {
        #[command(subcommand)]
        action: CasAction,
    },
    /// Run the benchmark demo
    Demo {
        /// Path to a project directory (defaults to bundled flask-demo)
        path: Option<String>,
    },
}

#[derive(Subcommand)]
enum DagAction {
    /// Show the current DAG tree
    Show,
}

#[derive(Subcommand)]
enum CasAction {
    /// Show CAS storage stats
    Stats,
    /// Run garbage collection
    Gc,
}

fn main() {
    let cli = Cli::parse();

    let result = match cli.command {
        Commands::Init => commands::init::run(),
        Commands::Up => commands::up::run(),
        Commands::Down => commands::down::run(),
        Commands::Status => commands::status::run(),
        Commands::Exec { cmd } => commands::exec::run(&cmd),
        Commands::Ingest { path } => commands::ingest::run(&path),
        Commands::Lock => commands::lock::run(),
        Commands::Dag { action } => match action {
            DagAction::Show => commands::dag::run_show(),
        },
        Commands::Cas { action } => match action {
            CasAction::Stats => commands::cas::run_stats(),
            CasAction::Gc => commands::cas::run_gc(),
        },
        Commands::Demo { path } => commands::demo::run(path.as_deref()),
    };

    if let Err(e) = result {
        eprintln!("error: {}", e);
        std::process::exit(1);
    }
}