X-Git-Url: https://git.notmuchmail.org/git?a=blobdiff_plain;f=lib%2Fsup%2Fpoll.rb;h=74f7d1ce67765c668e73de67afa4a0de97478e00;hb=6a88cfad209417cef169d4cb52a25d7d7071a7b5;hp=9fc8b6f72b65103b056090d258b3d39d8009d1e6;hpb=1633e4498b375b0cd9395ac054aa4e3d29ca5ad9;p=sup

diff --git a/lib/sup/poll.rb b/lib/sup/poll.rb
index 9fc8b6f..74f7d1c 100644
--- a/lib/sup/poll.rb
+++ b/lib/sup/poll.rb
@@ -5,32 +5,66 @@ module Redwood
 class PollManager
   include Singleton
 
+  HookManager.register "before-add-message", <<EOS
+Executes immediately before a message is added to the index.
+Variables:
+  message: the new message
+EOS
+
+  HookManager.register "before-poll", <<EOS
+Executes immediately before a poll for new messages commences.
+No variables.
+EOS
+
+  HookManager.register "after-poll", <<EOS
+Executes immediately after a poll for new messages completes.
+Variables:
+                   num: the total number of new messages added in this poll
+             num_inbox: the number of new messages added in this poll which
+                        appear in the inbox (i.e. were not auto-archived).
+num_inbox_total_unread: the total number of unread messages in the inbox
+         from_and_subj: an array of (from email address, subject) pairs
+   from_and_subj_inbox: an array of (from email address, subject) pairs for
+                        only those messages appearing in the inbox
+EOS
+
   DELAY = 300
 
   def initialize
     @mutex = Mutex.new
+    @thread = nil
     @last_poll = nil
+    @polling = false
     
     self.class.i_am_the_instance self
   end
 
   def buffer
-    BufferManager.spawn_unless_exists("<poll for new messages>", :hidden => true) { PollMode.new }
+    b, new = BufferManager.spawn_unless_exists("poll for new messages", :hidden => true, :system => true) { PollMode.new }
+    b
   end
 
   def poll
+    return if @polling
+    @polling = true
+    HookManager.run "before-poll"
+
     BufferManager.flash "Polling for new messages..."
-    num, numi = buffer.mode.poll
+    num, numi, from_and_subj, from_and_subj_inbox = buffer.mode.poll
     if num > 0
-      BufferManager.flash "Loaded #{num} new messages, #{numi} to inbox." 
+      BufferManager.flash "Loaded #{num.pluralize 'new message'}, #{numi} to inbox." 
     else
       BufferManager.flash "No new messages." 
     end
+
+    HookManager.run "after-poll", :num => num, :num_inbox => numi, :from_and_subj => from_and_subj, :from_and_subj_inbox => from_and_subj_inbox, :num_inbox_total_unread => lambda { Index.num_results_for :labels => [:inbox, :unread] }
+
+    @polling = false
     [num, numi]
   end
 
-  def start_thread
-    Redwood::reporting_thread do
+  def start
+    @thread = Redwood::reporting_thread("periodic poll") do
       while true
         sleep DELAY / 2
         poll if @last_poll.nil? || (Time.now - @last_poll) >= DELAY
@@ -38,21 +72,44 @@ class PollManager
     end
   end
 
+  def stop
+    @thread.kill if @thread
+    @thread = nil
+  end
+
   def do_poll
     total_num = total_numi = 0
+    from_and_subj = []
+    from_and_subj_inbox = []
+
     @mutex.synchronize do
-      found = {}
       Index.usual_sources.each do |source|
-        yield "Loading from #{source}... " unless source.done? || source.broken?
+#        yield "source #{source} is done? #{source.done?} (cur_offset #{source.cur_offset} >= #{source.end_offset})"
+        begin
+          yield "Loading from #{source}... " unless source.done? || (source.respond_to?(:has_errors?) && source.has_errors?)
+        rescue SourceError => e
+          Redwood::log "problem getting messages from #{source}: #{e.message}"
+          Redwood::report_broken_sources :force_to_top => true
+          next
+        end
+
         num = 0
         numi = 0
-        Index.add_new_messages_from source do |m, offset, source_labels, entry|
-          yield "Found message at #{offset} with labels #{m.labels * ', '}"
-          num += 1
-          numi += 1 if m.labels.include? :inbox
+        add_messages_from source do |m, offset, entry|
+          ## always preserve the labels on disk.
+          m.labels = ((m.labels - [:unread, :inbox]) + entry[:label].symbolistize).uniq if entry
+          yield "Found message at #{offset} with labels {#{m.labels * ', '}}"
+          unless entry
+            num += 1
+            from_and_subj << [m.from && m.from.longname, m.subj]
+            if m.has_label?(:inbox) && ([:spam, :deleted, :killed] & m.labels).empty?
+              from_and_subj_inbox << [m.from && m.from.longname, m.subj]
+              numi += 1 
+            end
+          end
           m
         end
-        yield "Found #{num} messages, #{numi} to inbox" unless num == 0
+        yield "Found #{num} messages, #{numi} to inbox." unless num == 0
         total_num += num
         total_numi += numi
       end
@@ -61,7 +118,54 @@ class PollManager
       @last_poll = Time.now
       @polling = false
     end
-    [total_num, total_numi]
+    [total_num, total_numi, from_and_subj, from_and_subj_inbox]
+  end
+
+  ## this is the main mechanism for adding new messages to the
+  ## index. it's called both by sup-sync and by PollMode.
+  ##
+  ## for each message in the source, starting from the source's
+  ## starting offset, this methods yields the message, the source
+  ## offset, and the index entry on disk (if any). it expects the
+  ## yield to return the message (possibly altered in some way), and
+  ## then adds it (if new) or updates it (if previously seen).
+  ##
+  ## the labels of the yielded message are the default source
+  ## labels. it is likely that callers will want to replace these with
+  ## the index labels, if they exist, so that state is not lost when
+  ## e.g. a new version of a message from a mailing list comes in.
+  def add_messages_from source, opts={}
+    begin
+      return if source.done? || source.has_errors?
+
+      source.each do |offset, labels|
+        if source.has_errors?
+          Redwood::log "error loading messages from #{source}: #{source.error.message}"
+          return
+        end
+
+        labels << :sent if source.uri.eql?(SentManager.source_uri)
+        labels.each { |l| LabelManager << l }
+        labels = labels + (source.archived? ? [] : [:inbox])
+
+        m = Message.new :source => source, :source_info => offset, :labels => labels
+        m.load_from_source!
+
+        if m.source_marked_read?
+          m.remove_label :unread
+          labels.delete :unread
+        end
+
+        docid, entry = Index.load_entry_for_id m.id
+        HookManager.run "before-add-message", :message => m
+        m = yield(m, offset, entry) or next if block_given?
+        times = Index.sync_message m, false, docid, entry, opts
+        UpdateManager.relay self, :added, m unless entry
+      end
+    rescue SourceError => e
+      Redwood::log "problem getting messages from #{source}: #{e.message}"
+      Redwood::report_broken_sources :force_to_top => true
+    end
   end
 end