Tom Wey tjmw

You mention that you would only use circe auto derivation in only a few limited cases - may I ask why? It looks like you are using semi-auto derivation instead. Why is this better/more stable?

The difference is where the derivation happens - in semiauto, you only have one place where a codec for a given type will be derived: at definition site, which is usually the companion object (it's the companion object in our case, but it could be anywhere really - point still stands that it's easier to track). In auto derivation, codecs are derived as needed by the usage - e.g. in the endpoint definitions or in a controller (depending on the tech stack you use). The problem here is that you need all the codecs of all the fields and all their fields (...and so on...) to be available there.

The centralization of the codecs in Semiauto mode allows us to switch to a different format at any time, while keeping the representation consistent across all usages of it. Additionally, it allows us to test the codec logic witho

TL;DR: what was the bug? (spoilers!): https://gist.github.com/trptcolin/6039cd454acfe6e820d13cbdce5e4064

Minor text change for the company blog; let’s get it done!
JEKYLL_ENV=production bundle exec jekyll upload -e staging
- Liquid Exception: ExecJS::ProgramError in /_layouts/default.html
- execjs, hmm, do i have node installed?
node --version
- yes, v11.14.0
bundle open jekyll-s3-upload to read code & see this command is doing
- looks like it builds before uploading (Jekyll::Commands::Build.build(site, jekyll_config)) - https://github.com/8thlight/jekyll-s3-upload/blob/60dd52f937db21d1265cb9a7fdcdf438730e32d2/lib/jekyll/commands/s3_upload.rb#L51
bundle exec jekyll build

Installing PostGIS valid for PostgreSQL 9.6.2

PostGIS marks PostgreSQL as a dependency. As I write this Postgres 10 has just been released, but we don't yet want that as it'd be far ahead of Heroku Postgres.

To be able to install a valid PostGIS for 9.6.2 we need to do something like this:

% cd $(brew --repo homebrew/core)

Edit — February 2019

This gist had a far larger impact than I imagined it would, and apparently people are still finding it, so a quick update:

TC39 is currently moving forward with a slightly different version of TLA, referred to as 'variant B', in which a module with TLA doesn't block sibling execution. This vastly reduces the danger of parallelizable work happening in serial and thereby delaying startup, which was the concern that motivated me to write this gist
In the wild, we're seeing (async main(){...}()) as a substitute for TLA. This completely eliminates the blocking problem (yay!) but it's less powerful, and harder to statically analyse (boo). In other words the lack of TLA is causing real problems
Therefore, a version of TLA that solves the original issue is a valuable addition to the language, and I'm in full support of the current proposal, which you can read here.

I'll leave the rest of this document unedited, for archaeological

	name: CI

	on: [push]

	jobs:
	rspec:
	runs-on: ubuntu-latest
	container:
	image: ruby:2.6.5

	#!/bin/bash

	# Save stdout & stderr to individual files:
	bundle exec rspec > >(tee stdout.log) 2> >(tee stderr.log >&2)

	# Calculate the percentage:
	wc -l stderr.log stdout.log \
	\| ruby -e \
	'err, _, total = ARGF.map(&:to_f); puts "#{(err/total*100).round}% error output"'

	{
	"scripts": {
	"build": "npm run build:es2015 && npm run build:esm && npm run build:cjs && npm run build:umd && npm run build:umd:min",
	"build:es2015": "tsc --module es2015 --target es2015 --outDir dist/es2015",
	"build:esm": "tsc --module es2015 --target es5 --outDir dist/esm",
	"build:cjs": "tsc --module commonjs --target es5 --outDir dist/cjs",
	"build:umd": "rollup dist/esm/index.js --format umd --name YourLibrary --sourceMap --output dist/umd/yourlibrary.js",
	"build:umd:min": "cd dist/umd && uglifyjs --compress --mangle --source-map --screw-ie8 --comments --o yourlibrary.min.js -- yourlibrary.js && gzip yourlibrary.min.js -c > yourlibrary.min.js.gz",
	}
	}

	function prefetch(getKey, getValue, getInitialValue, propName) {
	const inFlight = new Set();
	const cache = new Map();
	return ChildComponent => {
	return class extends React.Component {
	state = {value: getInitialValue(this.props)};
	componentWillReceiveProps(nextProps) {
	const key = getKey(nextProps);
	if (cache.has(key)) {
	// Use cached value

	# Instructions
	# ------------
	#
	# * Save this as app/middlewares/bypass_broken_images_middleware.rb
	# * Add the following inside of the Rails.application.configure block
	# in config/environments/test.rb:
	#
	# config.middleware.insert_before(
	# ActionDispatch::DebugExceptions,
	# BypassBrokenImagesMiddleware,

	port module Spelling exposing (..)

	import Html exposing (..)
	import Html.App as App
	import Html.Attributes exposing (..)
	import Html.Events exposing (..)
	import String


	main =