Pedro Barbosa jpedro

The introduction to Reactive Programming you've been missing

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

Sankey Diagrams within Google Spreadsheets

This Gist is there to help you creating a Sankey Diagram from your Google Spreadsheets.

Fork of @njoerd114

Changes:

update usage instruction for new Apps Script IDE
does not need document Id (@steren)
supports named sheet (not default, see customization in code.gs)

Sankey Diagrams within Google Spreadsheets

This Gist is there to help you creating a Sankey Diagram from your Google Spreadsheets.

Installation

Open a spreadsheet
Click "Tools" -> "Scripts"

Here's a list of mildly interesting things about the C language that I learned mostly by consuming Clang's ASTs. Although surprises are getting sparser, I might continue to update this document over time.

There are many more mildly interesting features of C++, but the language is literally known for being weird, whereas C is usually considered smaller and simpler, so this is (almost) only about C.

1. Combined type and variable/field declaration, inside a struct scope [https://godbolt.org/g/Rh94Go]

struct foo {
   struct bar {
 int x;

Install web development tools to Mavericks (OS X 10.9)

Strongly opinionated set of guides to quickly setup OS X Mavericks for web development. By default OS X hides stuff that normal people don't need to see. These settings are better defaults for developers.

I don't want: any sounds, annoying confirmation dialogs, hidden extensions, superflous animations, unnecessary things running like Dashboard, Notification center or Dock(Alfred/spotlight works better for me).

These are my opinions. Read this document through and pick up the good parts to your preferences.

System preferences

Never touch your local /etc/hosts file in OS X again

To setup your computer to work with *.test domains, e.g. project.test, awesome.test and so on, without having to add to your hosts file each time.

Requirements

Homebrew
Mountain Lion -> High Sierra

Install

With GitHub Actions, a workflow can publish artifacts, typically logs or binaries. As of early 2020, the life time of an artifact is hard-coded to 90 days (this may change in the future). After 90 days, an artifact is automatically deleted. But, in the meantime, artifacts for a repository may accumulate and generate mega-bytes or even giga-bytes of data files.

It is unclear if there is a size limit for the total accumulated size of artifacts for a public repository. But GitHub cannot reasonably let multi-giga-bytes of artifacts data accumulate without doing anything. So, if your workflows regularly produce large artifacts (such as "nightly build" procedures for instance), it is wise to cleanup and delete older artifacts without waiting for the 90 days limit.

Using the Web page for the "Actions" of a repository, it is possible to browse old workflow runs and manually delete artifacts. But the procedure is slow and tedious. It is fine to delete one selected artifact. It is not for a regular cleanup. We need

	#! /bin/sh

	GOOS=linux go build -o $2 "$1"
	GOOS=linux go build -ldflags="-s -w" -o $2.-sw "$1"
	upx -f --brute -o $2.upx $2
	upx -f --brute -o $2.-sw.upx $2.-sw

	GOOS=linux gotip build -o $2.tip "$1"
	GOOS=linux gotip build -ldflags="-s -w" -o $2.tip.-sw "$1"
	upx -f --brute -o $2.tip.upx $2.tip

	M[16],X=16,W,k;main(){T(system("stty cbreak")
	);puts(W&1?"WIN":"LOSE");}K[]={2,3,1};s(f,d,i
	,j,l,P){for(i=4;i--;)for(j=k=l=0;k<4;)j<4?P=M
	[w(d,i,j++)],W\|=P>>11,l*P&&(f?M[w(d,i,k)]=l<<
	(l==P):0,k++),l=l?P?l-P?P:0:l:P:(f?M[w(d,i,k)
	]=l:0,++k,W\|=2*!l,l=0);}w(d,i,j){return d?w(d
	-1,j,3-i):4*i+j;}T(i){for(i=X+rand()%X;M[i%X]
	*i;i--);i?M[i%X]=2<<rand()%2:0;for(W=i=0;i<4;
	)s(0,i++);for(i=X,puts("\e[2J\e[H");i--;i%4\|\|
	puts(""))printf(M[i]?"%4d\|":" \|",M[i]);W-2

	-- -----------------
	-- Setup environment
	-- -----------------

	-- Animation off, mofo
	hs.window.animationDuration = 0

	-- Get list of screens and refresh that list whenever screens are (un)plugged
	local screens = hs.screen.allScreens()
	local screenwatcher = hs.screen.watcher.new(function()