fernandoaleman

Problem

Installing mysql2 gem errors on Apple silicon M1, M2 or M3 Mac running macOS Sonoma.

Solution

Make sure mysql-client, openssl and zstd are installed on Mac via Homebrew.

Replace mysql-client with whichever mysql package you are using

krissen

Edit 2024-12-18:

Support for mouse emulation has now been implemented. See https://zmk.dev/docs/keymaps/behaviors/mouse-emulation

The instructions below are outdated.

Outdated instructions. Do ignore.

Edit 2024-02-05:

dteoh

Setting session variables in an RSpec Rails request spec

You are writing a spec with type: :request, i.e. an integration spec instead of a controller spec. Integration specs are wrappers around Rails' ActionDispatch::IntegrationTest class. I usually write controller tests using this instead of type: :controller, mainly because it exercises more of the request and response handling stack. So instead of writing something like get :index to start the request, you would write get books_path or similar.

One of the issues with using type: :request is that you lose the ability to

contraexemplo

Primeiro, verifique se o módulo está presente na sua instalação digitando pacmd em seu terminal, listando todos os módulos presentes pelo comando list-modules e procurando por module-echo-cancel. Não está presente? Você precisa adicionar algumas linhas ao arquivo de texto responsável pela configuração do PulseAudio.

Com o seu editor favorito, abra (com privilégios de administrador) o arquivo /etc/pulse/default.pa e adicione as seguintes linhas ao fim do arquivo:

### Enable Echo/Noise-Cancellation
load-module module-echo-cancel use_master_format=1 aec_method=webrtc aec_args="analog_gain_control=0\ digital_gain_control=1" source_name=echoCancel_source sink_name=echoCancel_sink
set-default-source echoCancel_source
set-default-sink echoCancel_sink

wteuber

require 'openssl'

class String
  def encrypt(key)
    cipher = OpenSSL::Cipher.new('DES-EDE3-CBC').encrypt
    cipher.key = Digest::SHA1.hexdigest key
    s = cipher.update(self) + cipher.final

    s.unpack('H*')[0].upcase
  end

whistler

sudo aptitude install build-essential libssl-dev libreadline5 libreadline5-dev zlib1g zlib1g-dev
sudo apt-get install libxslt-dev libxml2-dev
sudo apt-get install libmysqlclient-dev ruby-dev
sudo apt-get install libcurl4-openssl-dev
sudo apt-get install imagemagick libmagickcore-dev libmagickwand-dev
sudo apt-get install libsqlite3-dev
sudo apt-get install libreadline-dev
### Install Java ###

sudo apt-get install openjdk-6-jre-headless

chetan

YARD CHEATSHEET http://yardoc.org

May 2020 - updated fork: https://gist.github.com/phansch/db18a595d2f5f1ef16646af72fe1fb0e

cribbed from http://pastebin.com/xgzeAmBn

Templates to remind you of the options and formatting for the different types of objects you might want to document using YARD.

Modules

hugomaiavieira

#!/bin/sh
#
# Salve este script no diretório /etc/cron.hourly e dê permissão
# de execução a ele. Desse modo a cada hora sera verificada se a
# porcentagem de memória utilizada pelo sistema atingiu o valor definido
# na variável 'percent'. Caso positivo, o script informará ao kernel
# que este deverá alterar o valor da opção 'drop_caches' para 3.
#
# Mais detalhes: 'man proc' -> /proc/sys/vm/drop_caches.
PATH="/bin:/usr/bin:/usr/local/bin"

josevalim

# In your test_helper.rb
class ActiveRecord::Base
  mattr_accessor :shared_connection
  @@shared_connection = nil

  def self.connection
    @@shared_connection || retrieve_connection
  end
end