Class: Drupal::Install

Inherits:
Object
  • Object
show all
Includes:
REXML
Defined in:
lib/drupal/install.rb

Instance Method Summary collapse

Instance Method Details

#check_core ⇒ Object

Allow users to type ‘core’ instead of ‘drupal install drupal’



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# File 'lib/drupal/install.rb', line 46

def check_core
  @project = 'drupal' if @project =~ /^core|drupal$/
end

#debug(message) ⇒ Object 



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# File 'lib/drupal/install.rb', line 20

def debug(message)
  puts '... ' + message
end

#destination_empty? ⇒ Boolean

Check if the destination is empty.

Returns:

  • (Boolean) 


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# File 'lib/drupal/install.rb', line 41

def destination_empty?
  Dir['*'].length == 0
end

#get_release(xmldoc, which) ⇒ Object

returns the release with releasenumber ‘which’ from xmldoc. use ‘latest’ for which, if you want the latest stable release



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# File 'lib/drupal/install.rb', line 105

def get_release(xmldoc, which)
  releases = get_releases(xmldoc)

  ordered = releases.keys.sort_by {|k| k.to_s.split(/\.|-/).map {|v| v.to_i} }

  if ( which == 'latest' )
    release = releases[ordered.last]
  elsif ordered.include? which
    release = releases[which]
  else
    raise "Failed to find requested release #{which}"
  end

  return release
end

#get_releases(xmldoc) ⇒ Object 



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# File 'lib/drupal/install.rb', line 93

def get_releases(xmldoc)
  releases = Hash.new

  xmldoc.root.each_element('//release') do |release|
    releases[release.text('version')] = release
  end

  return releases
end

#get_tarball(release) ⇒ Object 



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# File 'lib/drupal/install.rb', line 121

def get_tarball(release)
  tarball = release.elements['//download_link'].text
  tarpath = File.basename(tarball)

  abort "Failed to find Drupal 6 tar of #{@project}" if tarball.nil?
  debug "Found tarball #{tarball}"

  # Fetch tarball
  begin
    response = Net::HTTP.get_response(URI.parse(tarball))
    puts tarpath
    File.open(tarpath, 'w') do |f|
      f.write response.body
    end
    debug "Copied tarball to #{tarpath}"
  rescue
    abort "Failed to copy remote tarball #{tarball} to #{tarpath}"
  end

  return tarpath
end

#get_xml(project, version = '6.x') ⇒ Object 



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# File 'lib/drupal/install.rb', line 74

def get_xml project, version='6.x'
  debug "Locating #{project} page for version #{version}"
  # Locate tarball from project page
  begin
    response = Net::HTTP.get_response(URI.parse("http://updates.drupal.org/release-history/#{project}/#{version}"))
    # TODO: unhardcode the dependency on Drupal 6, make this an environment or static var.
    # TODO: check 404, 403 etc.
    xmldoc = Document.new response.body
    if xmldoc.root.name == 'error' #TODO: better error handling here.
      message = xmldoc.root.text
      raise message
    end
  rescue
    abort "Could not fetch #{project}. Error: #{message}"
  end

  return xmldoc
end

#install_project ⇒ Object

Install project.



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# File 'lib/drupal/install.rb', line 57

def install_project
  xmldoc = get_xml(@project, @version)
  release = get_release(xmldoc, 'latest')
  @tarpath = get_tarball(release)

  # Extract tarball
  tgz = Zlib::GzipReader.new(File.open(@tarpath, 'rb'))
  Archive::Tar::Minitar.unpack(tgz, @dest) rescue abort "Failed to extract #{@tarpath} to #{@dest}"
  
  # Remove tarball
  File.delete(@tarpath) rescue abort "Failed to remove #{@tarpath}"

  # Installation complete
  debug "Project #{@project} installed to #{File.dirname(@tarpath)}" unless @dest == '.'
  debug 'Installation complete'
end

#install_projects ⇒ Object

Install single project or iterate lists.



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# File 'lib/drupal/install.rb', line 25

def install_projects
  if @project.include? ','
    projects = @project.split ','
    projects.each do |p|
      @project = p
      check_core
      install_project
      puts
    end
  else
    check_core
    install_project
  end
end

#run(arguments) ⇒ Object

Attempt to download core installation or module.



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# File 'lib/drupal/install.rb', line 11

def run(arguments)
  @project = arguments[0]
  @dest = arguments[1] || '.'
  @version = arguments[2] || '6.x'
  abort "Destination #{@dest} is not a directory." unless File.directory?(@dest)
  abort 'Project name required (core | <project>).' if arguments.empty?
  install_projects
end

#uri_available?(uri) ⇒ Boolean

Check if a uri is available.

Returns:

  • (Boolean) 


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# File 'lib/drupal/install.rb', line 51

def uri_available?(uri)
  open(uri) rescue false
end