Rakefile

require 'rake'
task :install do
  main
end
def main
  sudo = sudo
  if File.exists?("#{ENV["HOME"]}/.vim/vimrc")==true
      puts "\nYou already have an existing configuration.\nYou'll need to remove ~/.vim if you want to install.\n\n"
      usersymlink(2)
  elsif File.exists?("/etc/vim/vimrc")==true
    puts "\nYou already have an existing configuration.\nYou'll need to remove /etc/vim if you want to install.\n\n"
    usersymlink(1)
  else
    puts "\nChecking for Git."
    checkgit = system "/usr/bin/env git --version | grep version"
    if checkgit == true
      sudo = sudoornotsudo
      if sudo == 1
        singleuser
        usersymlink(2)
      elsif sudo == 2
        globalusers
        usersymlink(1)
        return
      elsif sudo == 3
        singleuser
        usersymlink(2)
      else
        return
      end
    else
      puts "\n\nGit is not installed!"
      puts "Install git and try again.\n\n"
      return
    end
    end
end
def sudoornotsudo
  if (`id -urn`.chomp.casecmp("root")||`who am i`.chomp.casecmp("root"))==0
    puts "\n\nYou have run this script with root permissions."
    puts "If you only wish to have it installed for your current (non-root) user,\nre-run the script under that user without SUDO.\n\n"
    puts "That said, would you like to install this VIM configuration for:\n\n"
    puts "(r)oot or (g)lobally.\n\n"
    response = $stdin.gets
    puts ""
    if response.chomp.casecmp("R")==0
      return 1
    elsif response.chomp.casecmp("G")==0
      #git clone global
      return 2
    else
      puts "Invalid input. Exiting Script.\n\n"
      return 0
    end
  else
    return 3
  end
end
def singleuser
  puts "Cloning VIM configuration..."
  system "/usr/bin/env git clone git://github.com/brandondean/Vim.git ~/.vim"
  system "(cd ~/.vim && git submodule init && git submodule update)"
end
def globalusers
  if File.exist?("#{ENV["HOME"]}/.vim-tmp/")==true
    puts "/etc/vim/ folder already exists. Recreating..."
    `rm -rf /etc/vim/`
    `mkdir /etc/vim/` 
  else
    `mkdir /etc/vim/`
    puts "Created /etc/vim/ folder."
  end
  puts "Cloning VIM configuration..."
  system "/usr/bin/env git clone git://github.com/brandondean/Vim.git /etc/vim/"
  system "(cd /etc/vim && git submodule init && git submodule update)"
  return
end
def usersymlink(section=0)
  if section==1
    if File.exist?("/etc/vimrc")==true
      puts "/etc/vimrc file already exists.\nPlease remove this file, and try again.\n\n"
    else
      `ln -s "/etc/vim/vimrc" "/etc/vimrc"`
      puts "\n\nEstablished symbolic link of /etc/vimrc\n\n"
    end
    return
  elsif section==2
    files = ['vimrc']
    # Create dotfile symlinks.
    files.each do |file|
      target = "#{ENV["HOME"]}/.#{file}"
      if File.exist?(target)==true
        puts "\n#{file} already exists as #{target}. Please remove this file, and try again."
      else
        `ln -s "#{ENV["HOME"]}/.vim/#{file}" "#{target}"`
        puts "Established symbolic link of .vimrc\n\n"
      end
      if File.exist?("#{ENV["HOME"]}/.vim-tmp/")==true
        puts "Temporary directory already exists.\n\n"
      else
        `mkdir "#{ENV["HOME"]}/.vim-tmp/"`
        puts "Created temp directory for VIM\n\n."
      end
    end
    return
  else
    return
  end
end