eschwartz

const assert = require('assert');
const _ = require('lodash');

function throwsAsync(block, expectedError, message) {
	return block()
		.then(res => {
			assert.fail(res, expectedError, message, 'is');
		}, err => {
			if (_.isFunction(expectedError)) {
				// note that assert.throws doesn't work with custom Error constructors

eschwartz

const fs = require('fs');
const assert = require('assert');
const _ = require('lodash');

function fileExists(filePath, msg) {
  try {
    fs.statSync(filePath);
  }
  catch (err) {
    if (_.includes(['ENOENT', 'ENOTDIR'], err.code)) {

eschwartz

function intent({DOM}) {
  return {
    addTodo: DOM.get('input', 'change').
      map(evt => evt.target.value).
      filter(val => val.trim().length),
    removeTodo: DOM.get('button', 'click').
      // Map the remove button click to the item text
      map(evt => evt.target.previousElementSibling.innerText.trim())
  };
}

eschwartz

function Deferred() {
  var deferred = {
    resolve: null,
    reject: null
  };
  deferred.promise = new Promise((resolve, reject) => {
    // Save resolve/reject to deferred, for later usage.
    deferred.resolve = resolve;
    deferred.reject = reject;
  });

eschwartz

/**
 * eg.
 *
 *  poll(
 *    () => Promise.resolve(Math.random()),
 *    val => val > 0.5
 *  )
 *    .then(val => console.log(`You won, with ${val}!`));
 *
 * @param {():Promise<T>} run

eschwartz

function mockReadFile(mockPath, content) {
  // see https://gist.github.com/eschwartz/955a3f8925e24270550cb635dd49c12b
  const deferred = Deferred(); 
  
  sinon.stub(fs, 'readFile', _.wrap(fs.readFile, (origFn, path, encoding, cb) => {
    if (path !== mockPath) { 
      return origFn.readFile(path, encoding, cb);
    }
    
    // Only resolve `fs.readFile` when deferred is resolved

eschwartz

import * as fs from 'fs';
import * as assert from 'assert';
import * as _ from 'lodash';

function assertFileExists(filePath:string, msg?:string) {
	try {
		fs.statSync(filePath);
	}
	catch (err) {
		if (_.includes(['ENOENT', 'ENOTDIR'], err.code)) {

eschwartz

# Add these lines to your dockerfile, before `npm install`

# Copy the bitbucket private key to your docker image
COPY ./bitbucket_ssh_key /opt/my-app

# Copy the ssh script to your docker image
COPY ./ssh-bitbucket.sh /opt/my-app

# Tell git to use your `ssh-bitbucket.sh` script
ENV GIT_SSH="/opt/map-project-tile-server/ssh-bitbucket.sh"

eschwartz

const childProcess = require('child_process');

// otherwise we get a stupid warning.
process.stdout.setMaxListeners(100);
process.stderr.setMaxListeners(100);

/**
 * Promisified child_process.exec
 *
 * @param cmd

eschwartz

/**
 * Run a series of async functions in sequence,
 * so that each fn waits to run until the last one has completed.
 * 
 * @param {function():Promise<T>} fns
 * @returns {Promise<T[]>
 */
function sequence(fns) {
  return fns
    .reduce((_prevResults, fn) => (