// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// rustpkg - a purely function package manager and build system

#[link(name = "rustpkg",
       vers = "0.6",
       uuid = "25de5e6e-279e-4a20-845c-4cabae92daaf",
       url = "https://github.com/mozilla/rust/tree/master/src/librustpkg")];

#[crate_type = "lib"];
#[no_core];

extern mod core(vers = "0.6");
extern mod std(vers = "0.6");
extern mod rustc(vers = "0.6");
extern mod syntax(vers = "0.6");

use core::*;
use std::getopts;
use getopts::{optflag, optopt, opt_present};
use rustc::metadata::{filesearch};

mod api;
mod usage;
mod util;

use util::*;

pub fn main() {
    let args = os::args();
    let opts = ~[optflag(~"h"), optflag(~"help")];
    let matches = &match getopts::getopts(args, opts) {
        result::Ok(m) => m,
        result::Err(f) => {
            fail fmt!("%s", getopts::fail_str(f));
        }
    };
    let help = opt_present(matches, ~"h") || opt_present(matches, ~"help");
    let mut args = copy matches.free;

    args.shift();

    if (args.len() < 1) {
        return usage::general();
    }

    let cmd = copy args[0];

    if !is_cmd(cmd) {
        return usage::general();
    } else if help {
        match cmd {
            ~"build" => usage::build(),
            ~"clean" => usage::clean(),
            ~"install" => usage::install(),
            ~"prefer" => usage::prefer(),
            ~"test" => usage::test(),
            ~"uninstall" => usage::uninstall(),
            ~"unprefer" => usage::unprefer(),
            _ => usage::general()
        }
    }

    Ctx { cmd: cmd, args: args }
}

pub use Crate = api::Crate;
pub use build = api::build;
pub use util = api::util;