My .irbrc and .bash_profile files with some changes

.bash_profile

function parse_git_branch {
  git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
}

function proml {
  local        BLUE="\[\033[0;34m\]"
  local         RED="\[\033[0;31m\]"
  local   LIGHT_RED="\[\033[1;31m\]"
  local       GREEN="\[\033[0;32m\]"
  local LIGHT_GREEN="\[\033[1;32m\]"
  local       WHITE="\[\033[1;37m\]"
  local  LIGHT_GRAY="\[\033[0;37m\]"
  case $TERM in
    xterm*)
    TITLEBAR='\[\033]0;\u@\h:\w\007\]'
    ;;
    *)
    TITLEBAR=""
    ;;
  esac

PS1="${TITLEBAR}\
$BLUE[$RED\$(date +%H:%M)$BLUE]\
$BLUE[$LIGHT_RED\w$GREEN\$(parse_git_branch)$BLUE]\
$GREEN\$ "
PS2='> '
PS4='+ '
}
proml

export PATH=/usr/local/git:/usr/local/git/bin:/opt/local/bin/:/usr/local/mysql/bin:$PATH
alias skykids_ssh="ssh yaraher@skykidsperu.com -p 30000"
alias server="ssh yaraher@xendacentral.com"
alias tailn="tail -f -n 100"
##
# Your previous /Users/alvaropereyrarabanal/.bash_profile file was backed up as /Users/alvaropereyrarabanal/.bash_profile.macports-saved_2009-08-30_at_08:12:49
##

# MacPorts Installer addition on 2009-08-30_at_08:12:49: adding an appropriate PATH variable for use with MacPorts.
export PATH=/opt/local/bin:/opt/local/sbin:$PATH
# Finished adapting your PATH environment variable for use with MacPorts.

export CLICOLOR=1
export LSCOLORS=exfxcxdxbxegebabagacad

.irbrc

begin
  # load wirble
  require 'rubygems'
  require 'wirble'
  # start wirble (with color)
  Wirble.init
  Wirble.colorize

  require 'Hirb'
  Hirb.enable

  if ENV.include?('RAILS_ENV') && !Object.const_defined?('RAILS_DEFAULT_LOGGER')
     require 'logger'
     RAILS_DEFAULT_LOGGER = Logger.new(STDOUT)
  end

rescue LoadError => err
  warn "Couldn't load Wirble: #{err}"
end

.nanorc

set autoindent

set multibuffer

set tabsize 4

README

Autocompletado de branch con GIT:

Descargar: http://kernel.org/pub/software/scm/git/git-1.5.4.3.tar.bz2
Copiar:  - git-1.5.4.3/contrib/completion/git-completion.bash  
         - /opt/local/etc/bash_completion.d/git-completion 

Done!

Rake tasks para GIT

require 'readline'

def git_branch
  `git branch | grep "*"`.strip[2..-1]
end

def compare_git_ver
  m = /git version (\d+).(\d+).(\d+)/.match(`git version`.strip)
  return true  if m[1].to_i > 1
  return false if m[1].to_i < 1
  return true  if m[2].to_i > 5
  return false if m[2].to_i < 5
  return true  if m[3].to_i >= 3
  return false
end

def check_git_ver
  raise "Invalid git version, use at least 1.5.3" unless compare_git_ver
end

namespace :git do

  desc "Show the current status of the checkout"
  task :status do
    system "git status"
  end

  desc "Create a new topic branch"
  task :topic do
    total = `git branch`.scan("quick").size
    if total == 0
      default = "quick"
    else
      default = "quick#{total + 1}"
    end
    name = Readline.readline "Topic name (default #{default}): "
    if name.strip.empty?
      name = default
    end
    sh "git checkout -b #{name}"
  end

  desc "Push all changes to the repository"
  task :push => :update do
    branch = git_branch()
    if branch != "master"
      `git diff-files --quiet`
      if $?.exitstatus == 1
        puts "You have outstanding changes. Please commit them first."
        exit 1
      end

      puts "* Merging topic '#{branch}' back into master..."
      `git checkout master`
      sh "git merge #{branch}"
      switch = true
    else
      switch = false
    end

    puts "* Pushing changes..."
    sh "git push"

    if switch
      puts "* Switching back to #{branch}..."
      `git checkout #{branch}`
    end
  end

  desc "Pull new commits from the repository"
  task :update do
    check_git_ver
    `git diff-files --quiet`
    if $?.exitstatus == 1
      stash = true
      clear = `git stash list`.scan("\n").size == 0
      puts "* Saving changes..."
      `git stash save`
    else
      stash = false
    end

    branch = git_branch()
    if branch != "master"
      switch = true
      `git checkout master`
      puts "* Switching back to master..."
    else
      switch = false
    end

    puts "* Pulling in new commits..."
    sh "git fetch"
    sh "git rebase origin"

    if switch
      puts "* Porting changes into #{branch}..."
      `git checkout #{branch}`
      sh "git rebase master"
    end

    if stash
      puts "* Applying changes..."
      sh "git stash apply"
      `git stash clear` if clear
    end
  end

  task :pull => :update
end