Class: Chef::SolrInstaller

Inherits:
Object
  • Object
show all
Includes:
Mixin::ShellOut
Defined in:
lib/chef/solr/solr_installer.rb

Defined Under Namespace

Classes: Config

Constant Summary collapse

PACKAGED_SOLR_DIR = 
File.expand_path( "../../../../solr", __FILE__)

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(argv) ⇒ SolrInstaller

Returns a new instance of SolrInstaller.



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# File 'lib/chef/solr/solr_installer.rb', line 245

def initialize(argv)
  @indent = 0
  @config = Config.new.configure_from(argv.dup)
  @overwriting = false
end

Instance Attribute Details

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/chef/solr/solr_installer.rb', line 243

def config
  @config
end

Instance Method Details

#chdir(dir, &block) ⇒ Object 



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# File 'lib/chef/solr/solr_installer.rb', line 338

def chdir(dir, &block)
  say "entering #{dir}"
  if config.noop?
    yield if block_given? # still call the block so we get the noop output.
  else
    Dir.chdir(dir) { yield if block_given? }
  end
end

#chef_solr_installed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chef/solr/solr_installer.rb', line 255

def chef_solr_installed?
  File.exist?(config.solr_home_path)
end

#chown(file) ⇒ Object 



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# File 'lib/chef/solr/solr_installer.rb', line 354

def chown(file)
  if config.user
    msg = "chown -R #{config.user}"
    msg << ":#{config.group}" if config.group
    msg << " #{file}"
    say msg
    FileUtils.chown_R(config.user, config.group, file) unless config.noop?
  end
end

#confirm_overwrite ⇒ Object 



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# File 'lib/chef/solr/solr_installer.rb', line 281

def confirm_overwrite
  if STDIN.tty? && STDOUT.tty?
    say "Chef Solr is already installed in #{config.solr_home_path}"
    print "Do you want to overwrite the current install? All existing Solr data will be lost. [y/n] "
    unless STDIN.gets =~ /^y/
      say "Quitting. Try running this with --noop to see what it will change."
      exit 1
    end
  else
    say(<<-FAIL)
ERROR: Chef Solr is already installed in #{config.solr_home_path} and you did not use the
--force option. Use --force to overwrite an existing installation in a non-
interactive terminal.
FAIL
    exit 1
  end
end

#create_solr_data_dir ⇒ Object 



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# File 'lib/chef/solr/solr_installer.rb', line 316

def create_solr_data_dir
  group("Creating Solr Data Directory") do
    mkdir_p(config.solr_data_path)
    chown(config.solr_data_path)
  end
end

#create_solr_home ⇒ Object 



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# File 'lib/chef/solr/solr_installer.rb', line 307

def create_solr_home
  group("Creating Solr Home Directory") do
    mkdir_p(config.solr_home_path)
    chdir(config.solr_home_path) do
      sh("tar zxvf #{File.join(PACKAGED_SOLR_DIR, 'solr-home.tar.gz')}")
    end
  end
end

#group(message, &block) ⇒ Object 



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# File 'lib/chef/solr/solr_installer.rb', line 375

def group(message, &block)
  say(message)
  indent(&block)
end

#indent ⇒ Object 



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# File 'lib/chef/solr/solr_installer.rb', line 369

def indent
  @indent += 1
  yield
  @indent -= 1
end

#mkdir_p(directory) ⇒ Object 



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# File 'lib/chef/solr/solr_installer.rb', line 333

def mkdir_p(directory)
  say "mkdir -p #{directory}"
  FileUtils.mkdir_p(directory, :mode => 0755) unless config.noop?
end

#overwriting? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chef/solr/solr_installer.rb', line 251

def overwriting?
  @overwriting
end

#rm_rf(path) ⇒ Object 



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# File 'lib/chef/solr/solr_installer.rb', line 364

def rm_rf(path)
  say "rm -rf #{path}"
  FileUtils.rm_rf(path) unless config.noop?
end

#run ⇒ Object 



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# File 'lib/chef/solr/solr_installer.rb', line 259

def run
  say ''
  say "*** DRY RUN ***" if config.noop?

  if chef_solr_installed?
    @overwriting = true
    confirm_overwrite unless config.force? || config.noop?
    scorch_the_earth
  end

  create_solr_home
  create_solr_data_dir
  unpack_solr_jetty

  say ""
  say "Successfully installed Chef Solr."

  if overwriting?
    say "You can restore your search index using `knife index rebuild`"
  end
end

#say(message) ⇒ Object 



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# File 'lib/chef/solr/solr_installer.rb', line 380

def say(message)
  puts "#{' ' * (2 * @indent)}#{message}"
end

#scorch_the_earth ⇒ Object 



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# File 'lib/chef/solr/solr_installer.rb', line 299

def scorch_the_earth
  group("Removing the existing Chef Solr installation") do
    rm_rf(config.solr_home_path)
    rm_rf(config.solr_jetty_path)
    rm_rf(config.solr_data_path)
  end
end

#sh(*args) ⇒ Object 



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# File 'lib/chef/solr/solr_installer.rb', line 347

def sh(*args)
  opts = args[1, args.size - 1]
  opts_msg = opts.empty? ? '' : " #{opts.to_s}"
  say "#{args.first}#{opts_msg}"
  shell_out!(*(args << {:cwd => false})) unless config.noop?
end

#unpack_solr_jetty ⇒ Object 



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# File 'lib/chef/solr/solr_installer.rb', line 323

def unpack_solr_jetty
  group("Unpacking Solr Jetty") do
    mkdir_p(config.solr_jetty_path)
    chdir(config.solr_jetty_path) do
      sh("tar zxvf #{File.join(PACKAGED_SOLR_DIR, 'solr-jetty.tar.gz')}")
    end
    chown(config.solr_jetty_path)
  end
end