Class RailsEnvironment < Object

# File rails/railties/lib/commands/plugin.rb, line 73
def self.default
  @default ||= find
end

# File rails/railties/lib/commands/plugin.rb, line 77
def self.default=(rails_env)
  @default = rails_env
end

# File rails/railties/lib/commands/plugin.rb, line 65
def self.find(dir=nil)
  dir ||= pwd
  while dir.length > 1
    return new(dir) if File.exist?(File.join(dir, 'config', 'environment.rb'))
    dir = File.dirname(dir)
  end
end

# File rails/railties/lib/commands/plugin.rb, line 61
def initialize(dir)
  @root = dir
end

# File rails/railties/lib/commands/plugin.rb, line 115
def best_install_method
  return :http unless use_svn?
  case
    when use_externals? then :externals
    when use_checkout? then :checkout
    else :export
  end
end

# File rails/railties/lib/commands/plugin.rb, line 124
def externals
  return [] unless use_externals?
  ext = %xsvn propget svn:externals "#{root}/vendor/plugins"`
  ext.reject{ |line| line.strip == '' }.map do |line| 
    line.strip.split(%r\s+/, 2) 
  end
end

# File rails/railties/lib/commands/plugin.rb, line 132
def externals=(items)
  unless items.is_a? String
    items = items.map{|name,uri| "#{name.ljust(29)} #{uri.chomp('/')}"}.join("\n")
  end
  Tempfile.open("svn-set-prop") do |file|
    file.write(items)
    file.flush
    system("svn propset -q svn:externals -F \"#{file.path}\" \"#{root}/vendor/plugins\"")
  end
end

# File rails/railties/lib/commands/plugin.rb, line 81
def install(name_uri_or_plugin)
  if name_uri_or_plugin.is_a? String
    if name_uri_or_plugin =~ %r:\/\// 
      plugin = Plugin.new(name_uri_or_plugin)
    else
      plugin = Plugins[name_uri_or_plugin]
    end
  else
    plugin = name_uri_or_plugin
  end
  unless plugin.nil?
    plugin.install
  else
    puts "plugin not found: #{name_uri_or_plugin}"
  end
end

# File rails/railties/lib/commands/plugin.rb, line 108
def use_checkout?
  # this is a bit of a guess. we assume that if the rails environment
  # is under subversion then they probably want the plugin checked out
  # instead of exported. This can be overridden on the command line
  File.directory?("#{root}/.svn")
end

# File rails/railties/lib/commands/plugin.rb, line 104
def use_externals?
  use_svn? && File.directory?("#{root}/vendor/plugins/.svn")
end

# File rails/railties/lib/commands/plugin.rb, line 98
def use_svn?
  require 'active_support/core_ext/kernel'
  silence_stderr {%xsvn --version` rescue nil}
  !$?.nil? && $?.success?
end