env-config.js

'use strict';

var path = require('path');
var chalk = require('chalk');
var copyProps = require('copy-props');

var mergeCliOpts = require('./cli-flags');
var messages = require("../../../messages");

var toEnvFromConfig = {
  configPath: 'flags.gulpfile',
  configBase: 'flags.gulpfile',
  preload: 'flags.preload',
  nodeFlags: 'flags.nodeFlags',
};

function overrideEnvConfig(env, config, cliOpts) {
  cliOpts = mergeCliOpts(cliOpts, config);

  // This must reverse because `flags.gulpfile` determines 2 different properties
  var reverse = true;
  env = copyProps(env, config, toEnvFromConfig, convert, reverse);

  env.config = {
    flags: cliOpts,
  };
  env.config.flags.getMessage = function(msg, data) {
    if (msg === messages.PRELOAD_BEFORE) {
      return 'Preloading external module: ' + chalk.magenta(data);
    }

    if (msg === messages.PRELOAD_SUCCESS) {
      return 'Preloaded external module: ' + chalk.magenta(data)
    }

    if (msg === messages.PRELOAD_FAILURE) {
      return chalk.yellow('Failed to preload external module: ') + chalk.magenta(data);
    }

    if (msg === messages.PRELOAD_ERROR) {
      return chalk.yellow(data.toString());
    }

    if (msg === messages.LOADER_SUCCESS) {
      return 'Loaded external module: ' + chalk.magenta(data);
    }

    if (msg === messages.LOADER_FAILURE) {
      return chalk.yellow('Failed to load external module: ') + chalk.magenta(data);
    }

    if (msg === messages.LOADER_ERROR) {
      return chalk.yellow(data.toString());
    }

    if (msg === messages.NODE_FLAGS) {
      var nodeFlags = chalk.magenta(data.join(', '));
      return 'Node flags detected: ' + nodeFlags;
    }

    if (msg === messages.RESPAWNED) {
      var pid = chalk.magenta(data);
      return 'Respawned to PID: ' + pid;
    }

    if (msg === messages.GULPFILE_NOT_FOUND) {
      return chalk.red('No gulpfile found');
    }

    if (msg === messages.CWD_CHANGED) {
      return 'Working directory changed to ' + chalk.magenta(data);
    }

    if (msg === messages.UNSUPPORTED_GULP_VERSION) {
      return chalk.red('Unsupported gulp version', data)
    }

    if (msg === messages.DESCRIPTION) {
      return 'Tasks for ' + chalk.magenta(data);
    }

    if (msg === messages.GULPFILE) {
      return 'Using gulpfile ' + chalk.magenta(data);
    }

    if (msg === messages.TASK_START) {
      return "Starting '" + chalk.cyan(data.task) + "'..."
    }

    if (msg === messages.TASK_STOP) {
      return "Finished '" + chalk.cyan(data.task) + "' after " + chalk.magenta(data.duration);
    }

    if (msg === messages.TASK_ERROR) {
      return "'" + chalk.cyan(data.task) + "' " + chalk.red('errored after') + ' ' +chalk.magenta(data.duration);
    }

    if (msg === messages.TASK_MISSING) {
      return chalk.red('Task \'' + data.task + '\' is not in your gulpfile') + '\nPlease check the documentation for proper gulpfile formatting';
    }

    if (msg === messages.SYNC_TASK) {
      return chalk.red('The following tasks did not complete: ') + chalk.cyan(data) + "\n" + chalk.red('Did you forget to signal async completion?');
    }

    if (msg === messages.MISSING_NODE_MODULES) {
      return chalk.red('Local modules not found in') + ' ' + chalk.magenta(data);
    }

    if (msg === messages.MISSING_GULP) {
      return chalk.red('Local gulp not found in') + ' ' + chalk.magenta(data);
    }

    if (msg === messages.YARN_INSTALL) {
      return chalk.red('Try running: yarn install');
    }

    if (msg === messages.NPM_INSTALL) {
      return chalk.red('Try running: npm install');
    }

    if (msg === messages.YARN_INSTALL_GULP) {
      return chalk.red('Try running: yarn add gulp');
    }

    if (msg === messages.NPM_INSTALL_GULP) {
      return chalk.red('Try running: npm install gulp');
    }

    if (msg === messages.BOX_DRAWINGS_LIGHT_UP_AND_RIGHT) {
      return chalk.white('└');
    }

    if (msg === messages.BOX_DRAWINGS_LIGHT_VERTICAL_AND_RIGHT) {
      return chalk.white('├');
    }

    if (msg === messages.BOX_DRAWINGS_LIGHT_HORIZONTAL) {
      return chalk.white('─');
    }

    if (msg === messages.BOX_DRAWINGS_LIGHT_DOWN_AND_HORIZONTAL) {
      return chalk.white('┬');
    }

    if (msg === messages.BOX_DRAWINGS_LIGHT_VERTICAL) {
      return chalk.white('│');
    }
  };

  return env

  function convert(configInfo, envInfo) {
    if (envInfo.keyChain === 'configBase') {
      if (cliOpts.gulpfile === undefined) {
        return path.dirname(configInfo.value);
      }
      return;
    }

    if (envInfo.keyChain === 'configPath') {
      if (cliOpts.gulpfile === undefined) {
        return configInfo.value;
      }
      return;
    }

    if (envInfo.keyChain === 'preload') {
      return [].concat(envInfo.value, configInfo.value);
    }

    /* istanbul ignore else */
    if (envInfo.keyChain === 'nodeFlags') {
      return [].concat(configInfo.value || []);
    }
  }
}

module.exports = overrideEnvConfig;