require 'thread'
require 'fileutils'
-require_gem 'ferret', ">= 0.10.13"
+require 'ferret'
+#require_gem 'ferret', ">= 0.10.13"
module Redwood
-class IndexError < StandardError
- attr_reader :source
-
- def initialize source, s
- super s
- @source = source
- end
-end
-
class Index
include Singleton
- attr_reader :index # debugging only
-
+ attr_reader :index
def initialize dir=BASE_DIR
@dir = dir
- @mutex = Mutex.new
@sources = {}
@sources_dirty = false
+ wsa = Ferret::Analysis::WhiteSpaceAnalyzer.new false
+ sa = Ferret::Analysis::StandardAnalyzer.new Ferret::Analysis::FULL_ENGLISH_STOP_WORDS, true
+ @analyzer = Ferret::Analysis::PerFieldAnalyzer.new wsa
+ @analyzer[:body] = sa
+ @qparser ||= Ferret::QueryParser.new :default_field => :body, :analyzer => @analyzer
+
self.class.i_am_the_instance self
end
raise "duplicate source!" if @sources.include? source
@sources_dirty = true
source.id ||= @sources.size
- source.id += 1 while @sources.member? source.id
+ ##TODO: why was this necessary?
+ ##source.id += 1 while @sources.member? source.id
@sources[source.id] = source
end
def source_for name; @sources.values.find { |s| s.is_source_for? name }; end
def usual_sources; @sources.values.find_all { |s| s.usual? }; end
+ def sources; @sources.values; end
def load_index dir=File.join(@dir, "ferret")
- wsa = Ferret::Analysis::WhiteSpaceAnalyzer.new false
- sa = Ferret::Analysis::StandardAnalyzer.new
- analyzer = Ferret::Analysis::PerFieldAnalyzer.new wsa
- analyzer[:body] = sa
-
if File.exists? dir
- Redwood::log "loading index"
- @index = Ferret::Index::Index.new(:path => dir, :analyzer => analyzer)
+ Redwood::log "loading index..."
+ @index = Ferret::Index::Index.new(:path => dir, :analyzer => @analyzer)
+ Redwood::log "loaded index of #{@index.size} messages"
else
- Redwood::log "creating index"
+ Redwood::log "creating index..."
field_infos = Ferret::Index::FieldInfos.new :store => :yes
field_infos.add_field :message_id
field_infos.add_field :source_id
field_infos.add_field :refs
field_infos.add_field :snippet, :index => :no, :term_vector => :no
field_infos.create_index dir
- @index = Ferret::Index::Index.new(:path => dir, :analyzer => analyzer)
+ @index = Ferret::Index::Index.new(:path => dir, :analyzer => @analyzer)
end
end
source ||= entry[:source_id].to_i
source_info ||= entry[:source_info].to_i
end
- raise "no entry and no source info for message #{m.id}" unless source && source_info
+
+ ## this happens sometimes. i'm not sure why. ferret bug?
+ raise "no entry and no source info for message #{m.id}: source #{source.inspect}, info #{source_info.inspect}, entry #{entry.inspect}, query #{Ferret::Search::TermQuery.new(:message_id, m.id)}, results #{@index.search(Ferret::Search::TermQuery.new(:message_id, m.id)).inspect}" unless source && source_info
raise "deleting non-corresponding entry #{docid}" unless @index[docid][:message_id] == m.id
@index.delete docid
## in scotland, frikkin' huuuge.
EACH_BY_DATE_NUM = 100
def each_id_by_date opts={}
- return if @index.size == 0 # otherwise ferret barfs
+ return if @index.size == 0 # otherwise ferret barfs ###TODO: remove this once my ferret patch is accepted
query = build_query opts
offset = 0
while true
end
def num_results_for opts={}
- query = build_query opts
- x = @index.search(query).total_hits
- Redwood::log "num_results_for: have #{x} for query #{query}"
- x
+ return 0 if @index.size == 0 # otherwise ferret barfs ###TODO: remove this once my ferret patch is accepted
+ q = build_query opts
+ index.search(q).total_hits
end
+ ## yield all messages in the thread containing 'm' by repeatedly
+ ## querying the index. yields pairs of message ids and
+ ## message-building lambdas, so that building an unwanted message
+ ## can be skipped in the block if desired.
SAME_SUBJECT_DATE_LIMIT = 7
def each_message_in_thread_for m, opts={}
messages = {}
source = @sources[doc[:source_id].to_i]
#puts "building message #{doc[:message_id]} (#{source}##{doc[:source_info]})"
raise "invalid source #{doc[:source_id]}" unless source
- raise "no snippet" unless doc[:snippet]
-
- begin
- Message.new source, doc[:source_info].to_i,
- doc[:label].split(" ").map { |s| s.intern },
- doc[:snippet]
- rescue MessageFormatError => e
- raise IndexError.new(source, "error building message #{doc[:message_id]} at #{source}/#{doc[:source_info]}: #{e.message}")
-# rescue StandardError => e
-# Message.new_from_index doc, <<EOS
-# An error occurred while loading this message. It is possible that the source
-# has changed, or (in the case of remote sources) is down. The error was:
-# #{e.message}
-# EOS
- end
+
+ fake_header = {
+ "date" => Time.at(doc[:date].to_i),
+ "subject" => unwrap_subj(doc[:subject]),
+ "from" => doc[:from],
+ "to" => doc[:to],
+ "message-id" => doc[:message_id],
+ "references" => doc[:refs],
+ }
+
+ Message.new :source => source, :source_info => doc[:source_info].to_i,
+ :labels => doc[:label].split(" ").map { |s| s.intern },
+ :snippet => doc[:snippet], :header => fake_header
end
def fresh_thread_id; @next_thread_id += 1; end
def wrap_subj subj; "__START_SUBJECT__ #{subj} __END_SUBJECT__"; end
+ def unwrap_subj subj; subj =~ /__START_SUBJECT__ (.*?) __END_SUBJECT__/ && $1; end
def add_message m
return false if contains? m
if m.source.is_a? Integer
m.source
else
- m.source.id or raise "unregistered source #{m.source}"
+ m.source.id or raise "unregistered source #{m.source} (id #{m.source.id.inspect})"
end
to = (m.to + m.cc + m.bcc).map { |x| x.email }.join(" ")
protected
- ## TODO: convert this to query objects rather than strings
+ def parse_user_query_string str; @qparser.parse str; end
def build_query opts
- query = ""
- query += opts[:labels].map { |t| "+label:#{t}" }.join(" ") if opts[:labels]
- query += " +label:#{opts[:label]}" if opts[:label]
- query += " #{opts[:content]}" if opts[:content]
+ query = Ferret::Search::BooleanQuery.new
+ query.add_query opts[:qobj], :must if opts[:qobj]
+ labels = ([opts[:label]] + (opts[:labels] || [])).compact
+ labels.each { |t| query.add_query Ferret::Search::TermQuery.new("label", t.to_s), :must }
if opts[:participants]
- query += "+(" +
- opts[:participants].map { |p| "from:#{p.email} OR to:#{p.email}" }.join(" OR ") + ")"
+ q2 = Ferret::Search::BooleanQuery.new
+ opts[:participants].each do |p|
+ q2.add_query Ferret::Search::TermQuery.new("from", p.email), :should
+ q2.add_query Ferret::Search::TermQuery.new("to", p.email), :should
+ end
+ query.add_query q2, :must
end
- query += " -label:spam" unless opts[:load_spam] || opts[:labels] == :spam ||
- (opts[:labels] && opts[:labels].include?(:spam))
- query += " -label:killed" unless opts[:load_killed] || opts[:labels] == :killed ||
- (opts[:labels] && opts[:labels].include?(:killed))
+ query.add_query Ferret::Search::TermQuery.new("label", "spam"), :must_not unless opts[:load_spam] || labels.include?(:spam)
+ query.add_query Ferret::Search::TermQuery.new("label", "killed"), :must_not unless opts[:load_killed] || labels.include?(:killed)
query
end
def save_sources fn=Redwood::SOURCE_FN
if @sources_dirty || @sources.any? { |id, s| s.dirty? }
- FileUtils.mv fn, fn + ".bak", :force => true if File.exists? fn
- Redwood::save_yaml_obj @sources.values, fn
+ bakfn = fn + ".bak"
+ if File.exists? fn
+ File.chmod 0600, fn
+ FileUtils.mv fn, bakfn, :force => true unless File.exists?(bakfn) && File.size(bakfn) > File.size(fn)
+ end
+ Redwood::save_yaml_obj @sources.values, fn
+ File.chmod 0600, fn
end
@sources_dirty = false
end
projects / sup / blobdiff