agents-skills 0.9.0

//! agents-skills — a minimal, stable skill installer and manager for AI agents.
//!
//! Bin entry point: no args prints the banner; `-v/--version` prints a bare semver;
//! otherwise dispatch by subcommand. All business logic lives in the `agents-skills` library.

mod cli;
mod commands;

use agents_skills::Manager;
use agents_skills::error::Result;
use clap::Parser;
use cli::{BOLD, Cli, Command, RESET};

fn main() {
    // No args: print the banner.
    if std::env::args_os().len() == 1 {
        cli::show_banner();
        return;
    }

    // Handle clap parse errors uniformly: unknown subcommands exit 1; help-like info goes to stdout with exit 0, other errors exit 1.
    let cli = match Cli::try_parse() {
        Ok(cli) => cli,
        Err(e) => {
            if e.kind() == clap::error::ErrorKind::InvalidSubcommand {
                let cmd = std::env::args().nth(1).unwrap_or_default();
                println!("Unknown command: {cmd}");
                println!("Run {BOLD}agents-skills --help{RESET} for usage.");
                std::process::exit(1);
            }
            let code = if e.use_stderr() { 1 } else { 0 };
            let _ = e.print();
            std::process::exit(code);
        }
    };

    // Custom version: print the bare semver.
    if cli.version {
        println!("{}", env!("CARGO_PKG_VERSION"));
        return;
    }

    // Project scope (`--project <dir>`): point the manager's cwd at that
    // directory so every project-scope path resolves there. No flag means global.
    let manager = match cli.command.as_ref().and_then(explicit_project_dir) {
        Some(dir) => {
            if !dir.is_dir() {
                eprintln!("Error: project directory not found: {}", dir.display());
                std::process::exit(1);
            }
            Manager::builder().cwd(dir).build()
        }
        None => Manager::new(),
    };

    let result: Result<()> = match cli.command {
        Some(Command::Add(a)) => commands::add::run(&manager, a),
        Some(Command::Remove(r)) => commands::remove::run(&manager, r),
        Some(Command::List(l)) => commands::list::run(&manager, l),
        Some(Command::Update(u)) => commands::update::run(&manager, u),
        Some(Command::Disable(d)) => commands::disable::run(&manager, d),
        Some(Command::Enable(e)) => commands::enable::run(&manager, e),
        Some(Command::Agent(a)) => commands::agent::run(&manager, a),
        None => Ok(()),
    };

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

/// Explicit `--project <dir>` directory, if the subcommand carries one.
///
/// The value is required, so the grammar is unambiguous: whatever follows the
/// flag is the project directory.
fn explicit_project_dir(command: &Command) -> Option<&std::path::Path> {
    let project = match command {
        Command::Add(a) => &a.project,
        Command::Remove(r) => &r.project,
        Command::List(l) => &l.project,
        Command::Update(u) => &u.project,
        Command::Disable(d) => &d.project,
        Command::Enable(e) => &e.project,
        Command::Agent(a) => &a.project,
    };
    project.as_deref()
}