Class: Neo4jTest::Installer

Inherits:
Object
  • Object
show all
Defined in:
lib/neo4j_test_server/installer.rb

Constant Summary collapse

BadEditionError = 
Class.new(RuntimeError)

Class Method Summary collapse

Class Method Details

.bootstrap(edition) ⇒ Object

Raises:



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# File 'lib/neo4j_test_server/installer.rb', line 10

def bootstrap(edition)
  raise BadEditionError if edition.empty?

  download_neo4j_unless_exists edition
  unzip_neo4j edition
  rake_auth_toggle :disable
end

.config(source_text, port) ⇒ Object 



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# File 'lib/neo4j_test_server/installer.rb', line 113

def config(source_text, port)
  s = set_property(source_text, 'org.neo4j.server.webserver.https.enabled', 'false')
  set_property(s, 'org.neo4j.server.webserver.port', port)
end

.config_location ⇒ Object 



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# File 'lib/neo4j_test_server/installer.rb', line 102

def config_location
  "#{install_location}/conf/neo4j-server.properties"
end

.download_neo4j(edition) ⇒ Object 



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# File 'lib/neo4j_test_server/installer.rb', line 39

def download_neo4j(edition)
  success = false

  File.open(download_to(edition), 'wb') do |file|
    file << request_url(download_url(edition))
    success = true
  end

  download_to(edition)
ensure
  File.delete(file_name) unless success
end

.download_neo4j_unless_exists(edition) ⇒ Object 



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# File 'lib/neo4j_test_server/installer.rb', line 34

def download_neo4j_unless_exists(edition)
  download_neo4j(edition) unless File.exist?(download_to(edition))
  download_to(edition)
end

.download_to(edition = '') ⇒ Object 



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# File 'lib/neo4j_test_server/installer.rb', line 25

def download_to(edition = '')
  # We want to ensure that we download the Neo4j archive to the gem location.  Not the project's location
  File.join(File.dirname(here), file_name(edition))
end

.download_url(edition) ⇒ Object 



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# File 'lib/neo4j_test_server/installer.rb', line 30

def download_url(edition)
  "http://dist.neo4j.org/neo4j-#{edition}-#{OS::Underlying.windows? ? 'windows.zip' : 'unix.tar.gz'}"
end

.file_name(edition = '') ⇒ Object 



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# File 'lib/neo4j_test_server/installer.rb', line 18

def file_name(edition = '')
  suffix = OS::Underlying.windows? ? 'neo4j.zip' : 'neo4j-unix.tar.gz'
  prefix = edition.empty? ? '' : "#{edition}-"

  [prefix, suffix].join ''
end

.get_environment ⇒ Object 



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# File 'lib/neo4j_test_server/installer.rb', line 92

def get_environment
  'development'
end

.here ⇒ Object

Defining a method that represents the current location of this file for testing purposes since I cant seem to be able to mock out “__FILE__” in the rspec tests. I CAN however mock out this method during testing… :-)



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# File 'lib/neo4j_test_server/installer.rb', line 134

def here
  __FILE__
end

.install_location ⇒ Object 



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# File 'lib/neo4j_test_server/installer.rb', line 96

def install_location
  path = File.expand_path('../../../tmp/db/neo4j', __FILE__)
  FileUtils.mkdir_p(path)
  "#{path}/#{get_environment}"
end

.rake_auth_toggle(status) ⇒ Object 



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# File 'lib/neo4j_test_server/installer.rb', line 106

def rake_auth_toggle(status)
  location = config_location
  text = File.read(location)
  replace = toggle_auth(status, text)
  File.open(location, 'w') { |file| file.puts replace }
end

.request_url(url) ⇒ Object 



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# File 'lib/neo4j_test_server/installer.rb', line 85

def request_url(url)
  status = HTTParty.head(url).code
  fail "#{edition} is not available to download, try a different version" if status < 200 || status >= 300

  HTTParty.get(url)
end

.set_property(source_text, property, value) ⇒ Object 



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# File 'lib/neo4j_test_server/installer.rb', line 118

def set_property(source_text, property, value)
  source_text.gsub(/#{property}\s*=\s*(\w+)/, "#{property}=#{value}")
end

.toggle_auth(status, source_text) ⇒ Object

Toggles the status of Neo4j 2.2’s basic auth



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# File 'lib/neo4j_test_server/installer.rb', line 123

def toggle_auth(status, source_text)
  status_string = status == :enable ? 'true' : 'false'
  %w(dbms.security.authorization_enabled dbms.security.auth_enabled).each do |key|
    source_text = set_property(source_text, key, status_string)
  end
  source_text
end

.unzip_neo4j(edition) ⇒ Object 



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# File 'lib/neo4j_test_server/installer.rb', line 52

def unzip_neo4j(edition)
  downloaded_file = download_to(edition)

  if OS::Underlying.windows?
    # Extract and move to neo4j directory
    unless File.exist?(install_location)
      Zip::ZipFile.open(downloaded_file) do |zip_file|
        zip_file.each do |f|
          f_path = File.join('.', f.name)
          FileUtils.mkdir_p(File.dirname(f_path))
          begin
            zip_file.extract(f, f_path) unless File.exist?(f_path)
          rescue
            puts "#{f.name} failed to extract."
          end
        end
      end
      FileUtils.mv "neo4j-#{edition}", install_location
    end

    # Install if running with Admin Privileges
    if `reg query "HKU\\S-1-5-19"`.size > 0
      `"#{install_location}/bin/neo4j install"`
      puts 'Neo4j Installed as a service.'
    end

  else
    `tar -xvf #{downloaded_file}`
    `mv neo4j-#{edition} #{install_location}`
    puts 'Neo4j Installed in to neo4j directory.'
  end
end