Class: Pik::Install

Inherits:
Command show all
Defined in:
lib/pik/commands/install_command.rb

Instance Attribute Summary collapse

Attributes inherited from Command

#config, #debug, #options, #output, #version

Instance Method Summary collapse

Methods inherited from Command

#actual_gem_home, #add_sigint_handler, aka, choose_from, #close, #cmd_name, cmd_name, #create, #current_gem_bin_path, #current_version?, #default_gem_home, #delete_old_pik_script, description, #editors, #find_config_from_path, #gem_path, #get_version, hl, inherited, it, names, #parse_options, #pik_version, #sh, summary

Constructor Details

#initialize(args = ARGV, config_ = nil) ⇒ Install

Returns a new instance of Install.



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# File 'lib/pik/commands/install_command.rb', line 14

def initialize(args=ARGV, config_=nil)
  super
  @download_dir = config.global[:download_dir] || PIK_HOME + 'downloads'
  @install_root = config.global[:install_dir]  || PIK_HOME + 'rubies'
  FileUtils.mkdir_p @download_dir.to_s
end

Instance Attribute Details

#target ⇒ Object (readonly)

Returns the value of attribute target.



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# File 'lib/pik/commands/install_command.rb', line 12

def target
  @target
end

Instance Method Details

#command_options ⇒ Object 



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# File 'lib/pik/commands/install_command.rb', line 30

def command_options
  super
  sep =<<SEP
  Choices are: ruby, jruby, or ironruby
  
  If no version is specified, the latest version will be installed.
  Download and install locations can be configured with 'pik config'.
  
  Examples:

# install the latest version of JRuby (currently 1.4.0RC1)
>pik install jruby

# install the latest 1.8 version of MinGW Ruby 
>pik install ruby 1.8    

SEP
  options.separator sep  
end

#download(package, download_dir = @download_dir) ⇒ Object 



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# File 'lib/pik/commands/install_command.rb', line 50

def download(package, download_dir=@download_dir)   
  target = download_dir + package. split('/').last
  puts "** Downloading:  #{package} \n   to:  #{target.windows}\n\n"
  URI.download(package, target.to_s, {:progress => true})
  puts
  return target
end

#download_seven_zip ⇒ Object 



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# File 'lib/pik/commands/install_command.rb', line 76

def download_seven_zip
  question = "You need the 7zip utility to extract this file.\n"
  question << "Would you like me to download it? (yes/no)"
  if @hl.agree(question){|answer| answer.default = 'yes' }
    uri  = 'http://downloads.sourceforge.net/sevenzip/7za465.zip'
    file = download(uri)
    Zip.fake_unzip(file.to_s, /\.exe|\.dll$/, PIK_SCRIPT.dirname.to_s)
  else
    raise QuitError
  end
end

#execute ⇒ Object 



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# File 'lib/pik/commands/install_command.rb', line 21

def execute
  implementation  = Implementations[@args.shift]
  @target, package = implementation.find(*@args)
  @target          = @install_root + "#{implementation.name}-#{@target.gsub('.','')}"
  file            = download(package)
  extract(@target, file)
  implementation.after_install(self)
end

#extract(target, file) ⇒ Object 



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# File 'lib/pik/commands/install_command.rb', line 58

def extract(target, file)
  if Which::SevenZip.exe
    FileUtils.mkdir_p target
    extract_(file, target)
  else
    download_seven_zip
    extract(target, file)
  end  
end

#extract_(file, target, options = {}) ⇒ Object 



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# File 'lib/pik/commands/install_command.rb', line 88

def extract_(file, target, options = {})
  fail unless File.directory?(target)
  
  # create a temporary folder used to extract files there
  tmpdir = File.expand_path(File.join(Dir.tmpdir, "extract_sandbox_#{$$}"))
  FileUtils.mkpath(tmpdir) unless File.exist?(tmpdir)

  # based on filetypes, extract the intermediate file into the temporary folder
  case file
    # tar.z, tar.gz and tar.bz2 contains .tar files inside, extract into 
    # temp first
    when /(^.+\.tar)\.z$/, /(^.+\.tar)\.gz$/, /(^.+\.tar)\.bz2$/
      seven_zip tmpdir, file
      seven_zip target, File.join(tmpdir, File.basename($1))
    when /(^.+)\.tgz$/
      seven_zip tmpdir, file
      seven_zip target, File.join(tmpdir, "#{File.basename($1)}.tar")
    when /(^.+\.zip$)/, /(^.+\.7z$)/
      seven_zip(target, $1)
    else
      raise "Unknown file extension! (for file #{file})"
  end

  # after extraction, lookup for a folder that contains '-' (version number or datestamp)
  folders_in_target = []
  Dir.chdir(target) { folders_in_target = Dir.glob('*') }

  # the package was created inside another folder
  # exclude folders packagename-X.Y.Z or packagename-DATE
  # move all the folders within that into target directly.
  folders_in_target.each do |folder|
    next unless File.directory?(File.join(target, folder)) && folder =~ /\-/

    # take the folder contents out!, now!
    contents = []
    Dir.chdir(File.join(target, folder)) { contents = Dir.glob('*') }

    contents.each do |c|
      #puts "** Moving out #{c} from #{folder} and drop into #{target}" if Rake.application.options.trace
      FileUtils.mv File.join(target, folder, c), target, :force => true
    end
    
    # remove the now empty folder
    # puts "** Removing #{folder}" if Rake.application.options.trace
    FileUtils.rm_rf File.join(target, folder)
  end

  # remove the temporary directory
  # puts "** Removing #{tmpdir}" if Rake.application.options.trace
  FileUtils.rm_rf tmpdir
end

#seven_zip(target, file) ⇒ Object 



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# File 'lib/pik/commands/install_command.rb', line 68

def seven_zip(target, file)
  file = Pathname(file)
  seven_zip = Which::SevenZip.exe.basename 
  puts "** Extracting:  #{file.windows}\n   to:  #{target}" #if verbose
  system("#{seven_zip} x -y -o\"#{target}\" \"#{file.windows}\" > NUL")
  puts 'done'
end