Class: Redsync::SyncStat

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/redsync/sync_stat.rb

Instance Method Summary collapse

Constructor Details

#initialize(config, agent) ⇒ SyncStat

Returns a new instance of SyncStat.



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# File 'lib/redsync/sync_stat.rb', line 8

def initialize(config, agent)
  @config = config
  @agent = agent

  @file = File.join(@config[:data_dir], "__redsync_stat.yml")
  FileUtils.touch @file unless File.exist? @file
  @stat = YAML.load_file(@file) || {}
end

Instance Method Details

#each ⇒ Object 



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# File 'lib/redsync/sync_stat.rb', line 98

def each
  @stat.each {|k,v| yield v}
end

#for(name) ⇒ Object 



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# File 'lib/redsync/sync_stat.rb', line 103

def for(name)
  @stat[name]
end

#history(name) ⇒ Object 



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# File 'lib/redsync/sync_stat.rb', line 81

def history(name)
  puts "--Getting page history for #{name}" if @config[:verbose]
  now = DateTime.now
  history = []
  page = @agent.get(@config[:wiki_base_url] + "/" + URI.encode(name) + "/history")
  page.search("table.wiki-page-versions tbody tr").each do |tr|
    timestamp = DateTime.parse(tr.search("td")[3].text + now.zone) 
    author_name = tr.search("td")[4].text.strip
    history << {
      :timestamp => timestamp,
      :author_name => author_name
    }
  end
  history
end

#local_updated_page_names ⇒ Object 



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# File 'lib/redsync/sync_stat.rb', line 139

def local_updated_page_names
  self.inject([]) do |sum, page|
    sum << page[:name] if page[:downloaded_at] && (page[:local_updated_at] > page[:downloaded_at])
    sum
  end
end

#new_page_names ⇒ Object 



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# File 'lib/redsync/sync_stat.rb', line 123

def new_page_names
  self.inject([]) do |sum, page|
    sum << page[:name] if !page[:remote_updated_at]
    sum
  end
end

#refresh ⇒ Object 



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# File 'lib/redsync/sync_stat.rb', line 18

def refresh
  puts "Refreshing pages list"
  page = @agent.get(@config[:wiki_base_url] + "/date_index")
  now = DateTime.now

  # Get remote and local update times using remote list
  page.search("#content h3").each do |h3|
    links = h3.next_element.search("a")
    links.each do |link|
      url = @config[:url] + link.attr("href")
      name = URI.decode(url.match(/^#{@config[:wiki_base_url]}\/(.*)$/)[1]).force_encoding("UTF-8")
      local_file = File.join(@config[:data_dir], "#{name}.#{@config[:extension]}")

      remote_updated_at = DateTime.parse(h3.text + "T00:00:00" + now.zone)

      if File.exist? local_file
        local_updated_at = File.stat(local_file).mtime.to_datetime
        if remote_updated_at.year == now.year && remote_updated_at.month == now.month && remote_updated_at.day == now.day
          remote_updated_at = history(name)[0][:timestamp]
        end
      else
        local_updated_at = DateTime.civil
      end

      update(name, {
        :name => name,
        :url => url,
        :local_file => local_file,
        :remote_updated_at => remote_updated_at,
        :local_updated_at => local_updated_at,
      }, true)

      update(name, {
        :downloaded_at => local_updated_at
      }, true) unless File.exist? local_file
    end
  end

  # Look for new page files at local
  Dir.entries(@config[:data_dir]).each do |file|
    fullpath = File.join(@config[:data_dir], file)
    next if File.directory?(fullpath)
    next if file =~ /^__redsync_/
    name = Iconv.iconv("UTF-8", "UTF-8-MAC", file) if RUBY_PLATFORM =~ /darwin/
    name = name.first.match(/(.*)\.#{extension}$/)[1]
    next if @stat[name]

    local_file = File.join(@config[:data_dir], "#{name}.#{extension}")
    local_updated_at = File.stat(local_file).mtime.to_datetime
    update(name, {
      :name => name,
      :url => @config[:wiki_base_url] + "/#{name}",
      :local_file => local_file,
      :remote_updated_at => nil,
      :local_updated_at => local_updated_at,
      :downloaded_at => local_updated_at
    }, true)
  end

  write
end

#remote_updated_page_names ⇒ Object 



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# File 'lib/redsync/sync_stat.rb', line 131

def remote_updated_page_names
  self.inject([]) do |sum, page|
    sum << page[:name] if page[:remote_updated_at] && (page[:remote_updated_at] > page[:downloaded_at])
    sum
  end
end

#update(name, hash, suspend_write = false) ⇒ Object 



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# File 'lib/redsync/sync_stat.rb', line 108

def update(name, hash, suspend_write = false)
  @stat[name] ||= {}
  @stat[name].merge! hash
  write unless suspend_write
end

#write ⇒ Object 



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# File 'lib/redsync/sync_stat.rb', line 115

def write
  File.open(@file, "w+:UTF-8") do |f|
    f.write("# DO NOT EDIT THIS FILE!\n")
    f.write(@stat.to_yaml)
  end
end