added thinking_sphinx plugin for fulltext search on nodes and heads

1 files changed, 180 insertions, 0 deletions

diff --git a/vendor/plugins/thinking-sphinx/lib/thinking_sphinx.rb b/vendor/plugins/thinking-sphinx/lib/thinking_sphinx.rb
new file mode 100644
index 0000000..745643f
--- /dev/null
+++ b/vendor/plugins/thinking-sphinx/lib/thinking_sphinx.rb
@@ -0,0 +1,180 @@
+Dir[File.join(File.dirname(__FILE__), '../vendor/*/lib')].each do |path|
+  $LOAD_PATH.unshift path
+end
+
+require 'active_record'
+require 'riddle'
+require 'after_commit'
+
+require 'thinking_sphinx/core/string'
+require 'thinking_sphinx/active_record'
+require 'thinking_sphinx/association'
+require 'thinking_sphinx/attribute'
+require 'thinking_sphinx/collection'
+require 'thinking_sphinx/configuration'
+require 'thinking_sphinx/facet'
+require 'thinking_sphinx/class_facet'
+require 'thinking_sphinx/facet_collection'
+require 'thinking_sphinx/field'
+require 'thinking_sphinx/index'
+require 'thinking_sphinx/rails_additions'
+require 'thinking_sphinx/search'
+require 'thinking_sphinx/deltas'
+
+require 'thinking_sphinx/adapters/abstract_adapter'
+require 'thinking_sphinx/adapters/mysql_adapter'
+require 'thinking_sphinx/adapters/postgresql_adapter'
+
+ActiveRecord::Base.send(:include, ThinkingSphinx::ActiveRecord)
+
+Merb::Plugins.add_rakefiles(
+  File.join(File.dirname(__FILE__), "thinking_sphinx", "tasks")
+) if defined?(Merb)
+
+module ThinkingSphinx
+  module Version #:nodoc:
+    Major = 1
+    Minor = 1
+    Tiny  = 6
+    
+    String = [Major, Minor, Tiny].join('.')
+  end
+  
+  # A ConnectionError will get thrown when a connection to Sphinx can't be
+  # made.
+  class ConnectionError < StandardError
+  end
+  
+  # A StaleIdsException is thrown by Collection.instances_from_matches if there
+  # are records in Sphinx but not in the database, so the search can be retried.
+  class StaleIdsException < StandardError
+    attr_accessor :ids
+    def initialize(ids)
+      self.ids = ids
+    end
+  end
+  
+  # The collection of indexed models. Keep in mind that Rails lazily loads
+  # its classes, so this may not actually be populated with _all_ the models
+  # that have Sphinx indexes.
+  def self.indexed_models
+    @@indexed_models ||= []
+  end
+  
+  def self.unique_id_expression(offset = nil)
+    "* #{ThinkingSphinx.indexed_models.size} + #{offset || 0}"
+  end
+  
+  # Check if index definition is disabled.
+  # 
+  def self.define_indexes?
+    @@define_indexes =  true unless defined?(@@define_indexes)
+    @@define_indexes == true
+  end
+  
+  # Enable/disable indexes - you may want to do this while migrating data.
+  # 
+  #   ThinkingSphinx.define_indexes = false
+  # 
+  def self.define_indexes=(value)
+    @@define_indexes = value
+  end
+  
+  @@deltas_enabled = nil
+
+  # Check if delta indexing is enabled.
+  # 
+  def self.deltas_enabled?
+    @@deltas_enabled  = (ThinkingSphinx::Configuration.environment != 'test') if @@deltas_enabled.nil?
+    @@deltas_enabled
+  end
+  
+  # Enable/disable all delta indexing.
+  #
+  #   ThinkingSphinx.deltas_enabled = false
+  #
+  def self.deltas_enabled=(value)
+    @@deltas_enabled = value
+  end
+  
+  @@updates_enabled = nil
+  
+  # Check if updates are enabled. True by default, unless within the test
+  # environment.
+  # 
+  def self.updates_enabled?
+    @@updates_enabled  = (ThinkingSphinx::Configuration.environment != 'test') if @@updates_enabled.nil?
+    @@updates_enabled
+  end
+  
+  # Enable/disable updates to Sphinx
+  # 
+  #   ThinkingSphinx.updates_enabled = false
+  #
+  def self.updates_enabled=(value)
+    @@updates_enabled = value
+  end
+  
+  @@suppress_delta_output = false
+  
+  def self.suppress_delta_output?
+    @@suppress_delta_output
+  end
+  
+  def self.suppress_delta_output=(value)
+    @@suppress_delta_output = value
+  end
+  
+  # Checks to see if MySQL will allow simplistic GROUP BY statements. If not,
+  # or if not using MySQL, this will return false.
+  # 
+  def self.use_group_by_shortcut?
+    !!(
+      mysql? && ::ActiveRecord::Base.connection.select_all(
+        "SELECT @@global.sql_mode, @@session.sql_mode;"
+      ).all? { |key,value| value.nil? || value[/ONLY_FULL_GROUP_BY/].nil? }
+    )
+  end
+  
+  def self.sphinx_running?
+    !!sphinx_pid && pid_active?(sphinx_pid)
+  end
+  
+  def self.sphinx_pid
+    pid_file    = ThinkingSphinx::Configuration.instance.pid_file
+    cat_command = 'cat'
+    return nil unless File.exists?(pid_file)
+    
+    if microsoft?
+      pid_file.gsub!('/', '\\')
+      cat_command = 'type'
+    end
+    
+    `#{cat_command} #{pid_file}`[/\d+/]
+  end
+  
+  def self.pid_active?(pid)
+    return true if microsoft?
+    
+    begin
+      # In JRuby this returns -1 if the process doesn't exist
+      Process.getpgid(pid.to_i) != -1
+    rescue Exception => e
+      false
+    end
+  end
+  
+  def self.microsoft?
+    RUBY_PLATFORM =~ /mswin/
+  end
+  
+  def self.jruby?
+    defined?(JRUBY_VERSION)
+  end
+  
+  def self.mysql?
+    ::ActiveRecord::Base.connection.class.name.demodulize == "MysqlAdapter" || (
+      jruby? && ::ActiveRecord::Base.connection.config[:adapter] == "jdbcmysql"
+    )
+  end
+end