Class: S3Uploader::Uploader

Inherits:
Object
  • Object
show all
Defined in:
lib/s3_uploader/s3_uploader.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Uploader

Returns a new instance of Uploader.



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# File 'lib/s3_uploader/s3_uploader.rb', line 18

def initialize(options = {})

  @options = {
    :destination_dir => '',
    :threads => DEFAULT_THREADS_NUMBER,
    :s3_key => ENV['S3_KEY'],
    :s3_secret => ENV['S3_SECRET'],
    :public => false,
    :region => DEFAULT_AWS_REGION,
    :metadata => {},
    :path_style => false,
    :regexp => nil,
    :gzip => false,
    :gzip_working_dir => nil,
    :time_range => Time.at(0)..(Time.now + (60 * 60 * 24))
  }.merge(options)

  @logger = @options[:logger] || Logger.new(STDOUT)

  if @options[:gzip] && @options[:gzip_working_dir].nil?
    raise 'gzip_working_dir required when using gzip'
  end

  if @options[:connection]
    @connection = @options[:connection]
  else
    if @options[:s3_key].nil? || @options[:s3_secret].nil?
      raise "Missing access keys"
    end

    @connection = Fog::Storage.new({
        :provider => 'AWS',
        :aws_access_key_id => @options[:s3_key],
        :aws_secret_access_key => @options[:s3_secret],
        :region => @options[:region],
        :path_style => @options[:path_style]
    })
  end

  if !@options[:destination_dir].to_s.empty? &&
      !@options[:destination_dir].end_with?('/')
    @options[:destination_dir] << '/'
  end
end

Instance Attribute Details

#logger=(value) ⇒ Object (writeonly)

Sets the attribute logger

Parameters:

  • value —

    the value to set the attribute logger to.



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# File 'lib/s3_uploader/s3_uploader.rb', line 16

def logger=(value)
  @logger = value
end

Instance Method Details

#upload(source_dir, bucket) ⇒ Object 



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# File 'lib/s3_uploader/s3_uploader.rb', line 63

def upload(source_dir, bucket)
  raise 'Source directory is requiered' if source_dir.to_s.empty?
  source = source_dir.dup
  source << '/' unless source.end_with?('/')
  raise 'Source must be a directory' unless File.directory?(source)

  gzip_working_dir = @options[:gzip_working_dir]

  if @options[:gzip] && !gzip_working_dir.to_s.empty?
    gzip_working_dir << '/' unless gzip_working_dir.end_with?('/')

    if gzip_working_dir.start_with?(source)
      raise 'gzip_working_dir may not be located within source-folder'
    end
  end

  total_size = 0
  files = Queue.new
  regexp = @options[:regexp]
  Dir.glob(File.join(source, '**/*'))
    .select { |f| !File.directory?(f) }.each do |f|

    if (regexp.nil? || File.basename(f).match(regexp)) &&
        @options[:time_range].cover?(File.mtime(f))
      if @options[:gzip] && File.extname(f) != '.gz'
        dir, base = File.split(f)
        dir       = dir.sub(source, gzip_working_dir)
        gz_file   = File.join(dir, [ base, '.gz' ].join)

        @logger.info("Compressing #{f}")

        FileUtils.mkdir_p(dir)
        Zlib::GzipWriter.open(gz_file) do |gz|
          gz.mtime     = File.mtime(f)
          gz.orig_name = f

          File.open(f, 'rb') do |fi|
            while (block_in = fi.read(BLOCK_SIZE)) do
              gz.write block_in
            end
          end
        end

        files << gz_file
        total_size += File.size(gz_file)
      else
        files << f
        total_size += File.size(f)
      end
    end
  end

  directory = @connection.directories.new(:key => bucket)

  start = Time.now
  total_files = files.size
  file_number = 0
  @mutex = Mutex.new

  threads = []
  @options[:threads].times do |i|
    threads[i] = Thread.new do

      until files.empty?
        @mutex.synchronize do
          file_number += 1
          Thread.current["file_number"] = file_number
        end
        file = files.pop rescue nil
        if file
          key = file.sub(source, '').sub(gzip_working_dir.to_s, '')
          dest = [ @options[:destination_dir], key ].join
          body = File.open(file)
          @logger.info(["[", Thread.current["file_number"], "/",
                        total_files, "] Uploading ", key,
                        " to s3://#{bucket}/#{dest}" ].join)

          directory.files.create(
            :key    => dest,
            :body   => body,
            :public => @options[:public],
            :metadata => @options[:metadata]
          )
          body.close
        end
      end
    end
  end
  threads.each { |t| t.join }

  finish = Time.now
  elapsed = finish.to_f - start.to_f
  mins, secs = elapsed.divmod 60.0
  @logger.info("Uploaded %d (%.#{0}f KB) in %d:%04.2f" %
              [total_files, total_size / KILO_SIZE, mins.to_i, secs])
end