module.exports = exports = reveal

exports.usage = 'Reveals data on the versioned binary'

var fs = require('fs')
  , path = require('path')
  , log = require('npmlog')
  , versioning = require('./util/versioning.js');

function unix_paths(key, val) {
    return val && val.replace ? val.replace(/\\/g, '/') : val;
}

function reveal(gyp, argv, callback) {
    var package_json = JSON.parse(fs.readFileSync('./package.json'));
    var opts = versioning.evaluate(package_json, gyp.opts);
    var hit = false;
    // if a second arg is passed look to see
    // if it is a known option
    var args = gyp.opts.argv.cooked;
    var find_val = args[args.indexOf('reveal')+1];
    if (find_val && opts.hasOwnProperty(find_val)) {
        console.log(opts[find_val].replace(/\\/g, '/'));
        hit = true;
    }
    // otherwise return all options as json
    if (!hit) {
        console.log(JSON.stringify(opts,unix_paths,2));
    }
    return callback();
}