nss-run/lib/TaskCollector.js

nss-run (not so simple run) is a very simplistic build tool.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _chalk = _interopRequireDefault(require("chalk"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
class TaskCollector {
  constructor() {
    this.tasks = {};
  }
  addTask(name, fn, options = {}) {
    // Do some basic validation
    if (!name) {
      throw new Error('Task requires a name');
    }
    if (typeof name !== 'string') {
      throw new Error('Task requires a name that is a string');
    }
    if (typeof fn !== 'function') {
      throw new Error(`Task ${name} requires a function that is a function`);
    }
    if (this.hasTask(name)) {
      throw new Error(`Task with name ${name} is already added`);
    }

    // Store the task
    this.tasks[name] = {
      name,
      fn,
      options
    };
  }
  hasTask(name) {
    return !!this.tasks[name];
  }
  runTask(name, args = [], exitOnNotFound = false) {
    if (!this.hasTask(name)) {
      console.log(_chalk.default.red(`No Task with name '${_chalk.default.cyan(name)}' found`));
      if (exitOnNotFound) {
        process.exit(1);
      }
      return Promise.reject(new Error(`No Task with name '${name}' found`));
    }
    function finishRunTask(time) {
      const formattedTime = ((Date.now() - time) / 1000).toFixed(2);
      console.log(_chalk.default.blue(`< Finished "${name}" in ${formattedTime}sec`));
    }
    return new Promise((resolve, reject) => {
      const time = Date.now();
      console.log(_chalk.default.blue(`> Running "${name}"...`));
      Promise.resolve(this.tasks[name].fn.apply(null, args)).then(data => {
        finishRunTask(time);
        resolve(data);
      }).catch(error => {
        finishRunTask(time);
        reject(error);
      });
    });
  }
  printHelp() {
    console.log(_chalk.default.bold('Available tasks:'));
    Object.keys(this.tasks).sort().forEach(name => {
      const {
        options
      } = this.tasks[name];
      if (options.hidden) {
        return;
      }
      if (options.description) {
        console.log(`  ${_chalk.default.cyan(name)} - ${options.description}`);
      } else {
        console.log(`  ${_chalk.default.cyan(name)}`);
      }
    });
    console.log();
  }
}
exports.default = TaskCollector;