configComponent.js

'use strict';
/**
 * @ref http://docs.ansible.com/ansible/YAMLSyntax.html
 */
const _ = require('lodash');

const
    loadSync              = require('./loadSync'),
    utils                 = require('./utils'),
    checkSecretParameters = _.memoize(require('./checkSecretParameters')),
    view                  = require('./view'),
    path                  = require('path')
;


const configComponent = module.exports;

// get Config dynamically depending on NODE_ENV
configComponent.get = get;

// Same as get but return config metadata too
configComponent._getFullConfig = _getFullConfig;

// View prettyfied config depending on NODE_ENV
configComponent.view = view;

// Sync
configComponent.loadSync = _.memoize(loadSync);


function get (module) {
    return _.omit(configComponent._getFullConfig(module), ['parameters', 'env', 'fileEnv', 'filePath']);
}

function _getFullConfig (module) {

    let config, filePath, fileEnv;
    const secretParamsPath = path.join(utils.resolve(module.filename), 'secret_parameters.yml');

    if (!checkSecretParameters.cache.has(secretParamsPath)) {
        checkSecretParameters(secretParamsPath);
    }

        filePath = utils.getEnvPathFrom(module.filename);
        fileEnv = utils.getEnv(module.filename);
    try {
        config = configComponent.loadSync(filePath);
    } catch (err) {
        if (err.code !== 'ENOENT' || fileEnv === 'production') {
            // Unexpected Error or production config not found.
            throw err;
        }

        console.warn('ConfigComponent: No config found for NODE_ENV=' + process.env.NODE_ENV + ' and File: ' + module.filename + ' fallback on config_production.yml');

        filePath = utils.getProductionPathFrom(module.filename);
        fileEnv = 'production';
        config = configComponent.loadSync(filePath);
    }
    config.filePath = filePath;
    config.fileEnv = fileEnv;

    return config;
}