katylava

Update 2022: git checkout -p <other-branch> is basically a shortcut for all this.

FYI This was written in 2010, though I guess people still find it useful at least as of 2021. I haven't had to do it ever again, so if it goes out of date I probably won't know.

Example: You have a branch refactor that is quite different from master. You can't merge all of the commits, or even every hunk in any single commit or master will break, but you have made a lot of improvements there that you would like to bring over to master.

Note: This will not preserve the original change authors. Only use if necessary, or if you don't mind losing that information, or if you are only merging your own work.

yuya-takeyama

module BinaryTree
  class Node
    attr_reader :word, :count, :left, :right

    include Enumerable

    def initialize(word)
      @word, @count = word, 1
    end

exoer

include_recipe "postgresql::server90"

# inspiration from 
# https://gist.github.com/637579

execute "create-root-user" do
    code = <<-EOH
    psql -U postgres -c "select * from pg_user where usename='root'" | grep -c root
    EOH
    command "createuser -U postgres -s root"

3dd13

require 'net/ftp'

CONTENT_SERVER_DOMAIN_NAME = "one-of-the-ftp-server.thought-sauce.com.hk"
CONTENT_SERVER_FTP_LOGIN = "saucy-ftp-server-login"
CONTENT_SERVER_FTP_PASSWORD = "saucy-ftp-server-password"


# LOGIN and LIST available files at default home directory
Net::FTP.open(CONTENT_SERVER_DOMAIN_NAME, CONTENT_SERVER_FTP_LOGIN, CONTENT_SERVER_FTP_PASSWORD) do |ftp|
  files = ftp.list

brentertz

## Prepare ###################################################################

# Remove RVM
rvm implode

# Ensure your homebrew is working properly and up to date
brew doctor
brew update

## Install ###################################################################

slok

Preparing Jboss environment

Create Jboss user and group

Create a group for a system user (daemnos and program users like www-data, mysql...)

# addgroup --system jboss

Create a user (system user, without home -> See below the command, to the jboss group and no login shell)

jcfischer

15:39:06,062 INFO  [org.jboss.as.server] (DeploymentScanner-threads - 2) JBAS018559: Deployed "current-knob.yml"
15:39:06,639 INFO  [org.torquebox.core.runtime] (Thread-109) Initialize? true
15:39:06,639 INFO  [org.torquebox.core.runtime] (Thread-109) Initializer=org.torquebox.web.rack.RackRuntimeInitializer@7df86f75
15:39:06,979 INFO  [org.torquebox.core.runtime] (Thread-109) Setting up Bundler
15:39:08,138 INFO  [stdout] (Thread-109) Could not find rake-0.8.7 in any of the sources
15:39:08,138 INFO  [stdout] (Thread-109) Run `bundle install` to install missing gems.
15:39:08,139 ERROR [org.torquebox.core.runtime] (Thread-109) Error during evaluation: require %q(bundler/setup): org.jruby.exceptions.RaiseException: (SystemExit) exit
	at org.jruby.RubyKernel.exit(org/jruby/RubyKernel.java:856) [jruby.jar:]
	at org.jruby.RubyKernel.exit(org/jruby/RubyKernel.java:825) [jruby.jar:]
	at (Anonymous).(root)(/opt/torquebox-current/jruby/lib/ruby/gems/1.8/gems/bundler-1.0.22/lib/bundler/setup.rb:14)	at org.jruby.RubyK

nathanaschbacher

GEM_HOME=/usr/local/rvm/gems/jruby-1.6.7
TERM=xterm-256color
JBOSS_HOME=/usr/local/rvm/gems/jruby-1.6.7@global/gems/torquebox-server-2.0.0.cr1-java/jboss
PATH=/usr/local/rvm/gems/jruby-1.6.7/bin:/usr/local/rvm/gems/jruby-1.6.7@global/bin:/usr/local/rvm/rubies/jruby-1.6.7/bin:/usr/local/rvm/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
JRUBY_HOME=/usr/local/rvm/rubies/jruby-1.6.7
LANG=en_US.UTF-8
TORQUEBOX_HOME=/usr/local/rvm/gems/jruby-1.6.7@global/gems/torquebox-server-2.0.0.cr1-java
GEM_PATH=/usr/local/rvm/gems/jruby-1.6.7:/usr/local/rvm/gems/jruby-1.6.7@global
JRUBY_OPTS=--1.9
SHELL=/bin/bash

rklemme

#!/usr/bin/ruby

# Implementation of a bit set which stores membershio in binary
# Strings managed in chunks.
class BitSet
  ZERO = "\000".encode(Encoding::BINARY).freeze
  DEFAULT_SEGMENT_SIZE = 1024 * 1024

  # Create the BitSet instance. If max_num is given, we preallocate
  # as much memory as needed.

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD