davidmfoley

const merge = (a: any, b: any): any => {
  if ((typeof b !== "undefined" && typeof b !== "object") || Array.isArray(b))
    return b;
  if ((typeof a !== "undefined" && typeof a !== "object") || Array.isArray(a))
    return a;

  a ||= {};
  b ||= {};
  const keys = [...new Set([...Object.keys(a), ...Object.keys(b)])];
  return keys.reduce(

davidmfoley

import { createTodo, updateTodo, deleteTodo } from './real-todo-api-client'
import React from 'react'

// create a context where the default value is the "real" production implementation
export const TodoApi = useContext({
  getTodos,
  createTodo,
  updateTodo,
  deleteTodo
})

davidmfoley

for file in *.wav ; do ffmpeg -i "$file" -b:a 320k "${file%.*}.mp3" ; done

davidmfoley

/* Conway's Life in pl/pgsql */

/* The 8 directions for finding neighbors of a cell */
create temp table directions(dx int, dy int);
insert into directions(dx, dy) values(-1, -1), (0, -1), (1, -1), (-1, 0), (1, 0), (-1, 1), (0, 1), (1, 1);

/* alive cells, one row per */
create temp table cells(x int, y int);

/* setup seed cells */

davidmfoley

// @flow

import * as React from 'react';
import queryString from 'query-string';
import { withRouter } from 'react-router-dom';

export default function withQuery(WrappedComponent: any): any {
  function QueryWrapper (props: Props) {
    const query = queryString.parse(props.location.search) || {};
    const pushQuery = (query) => {

davidmfoley

const precedence = ['rock', 'scissors', 'paper'];
const results=['TIE', 'FIRST_PLAYER', 'SECOND_PLAYER'];
const ordinal = x => precedence.indexOf(x);
const circularDirection = (a, b) => (ordinal(b) - ordinal(a) + 3) % 3;
const rps = (a, b) => results[circularDirection(a, b)];

davidmfoley

DB_URLS = ( \
  postgres://localhost/test_1 \
  postgres://localhost/test_2 \
)

for db_url in "${DB_URLS[@]}"; do
  echo "creating database `basename $db_url`"
  createdb `basename $db_url` > /dev/null 2>&1
  psql $db_url -c 'drop schema public cascade; create schema public;' -o /dev/null 2>/dev/null
  psql $db_url -f "path/to/your/schema.sql" > /dev/null 2>/dev/null

davidmfoley

mysqldump \
  -u $REMOTE_USER \
  -p$REMOTE_PASS \
  -h $REMOTE_HOST \
  -P $REMOTE_PORT $REMOTE_DB > ./test-dump
mysql -h host.docker.internal -P 3306 --password=wordpress -u wordpress wordpress < ./test-dump

# Make local-dev-specific modifications
mysql -h host.docker.internal -P 3306 --password=wordpress -u wordpress wordpress \
  -e "update wp_options set option_value='http://localhost:8080' where option_name in ('siteurl', 'home');"

davidmfoley

version: '3'

services:
   db:
     image: mysql:5.7
     volumes:
       - site_db_data:/var/lib/mysql
     restart: always
     ports:
       # bind to host port so we can run mysql tools on host

davidmfoley

#! /bin/bash
# flow check prints all of its output to stdout.
# In CI, we want to print only failures to stderr to make them easier to find in the build log.
# ignore flow diag messages, get rid of 'success' message', then redirect to stderr
# grep -v exits non-zero on match match, so we flip the exit code
! flow check 2>/dev/null | grep -v 'Found 0 errors' 1>&2