Class: Puppet::FileBucket::Dipper

Inherits:
Object
  • Object
show all
Defined in:
lib/puppet/file_bucket/dipper.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(hash = {}) ⇒ Dipper

Create our bucket client



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# File 'lib/puppet/file_bucket/dipper.rb', line 12

def initialize(hash = {})
  # Emulate the XMLRPC client
  server      = hash[:Server]
  port        = hash[:Port] || Puppet[:masterport]
  environment = Puppet[:environment]

  if hash.include?(:Path)
    @local_path = hash[:Path]
    @rest_path  = nil
  else
    @local_path = nil
    @rest_path = "https://#{server}:#{port}/#{environment}/file_bucket_file/"
  end
end

Instance Attribute Details

#name ⇒ Object

This is a transitional implementation that uses REST to access remote filebucket files.



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# File 'lib/puppet/file_bucket/dipper.rb', line 9

def name
  @name
end

Instance Method Details

#backup(file) ⇒ Object

Back up a file to our bucket

Raises:

  • (ArgumentError) 


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# File 'lib/puppet/file_bucket/dipper.rb', line 32

def backup(file)
  raise(ArgumentError, "File #{file} does not exist") unless ::File.exist?(file)
  contents = ::File.read(file)
  begin
    file_bucket_file = Puppet::FileBucket::File.new(contents, :bucket_path => @local_path)
    files_original_path = absolutize_path(file)
    dest_path = "#{@rest_path}#{file_bucket_file.name}#{files_original_path}"

    # Make a HEAD request for the file so that we don't waste time
    # uploading it if it already exists in the bucket.
    unless Puppet::FileBucket::File.head("#{@rest_path}#{file_bucket_file.checksum_type}/#{file_bucket_file.checksum_data}#{files_original_path}")
      file_bucket_file.save(dest_path)
    end

    return file_bucket_file.checksum_data
  rescue => detail
    puts detail.backtrace if Puppet[:trace]
    raise Puppet::Error, "Could not back up #{file}: #{detail}"
  end
end

#getfile(sum) ⇒ Object

Retrieve a file by sum.

Raises:



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# File 'lib/puppet/file_bucket/dipper.rb', line 54

def getfile(sum)
  source_path = "#{@rest_path}md5/#{sum}"
  file_bucket_file = Puppet::FileBucket::File.find(source_path, :bucket_path => @local_path)

  raise Puppet::Error, "File not found" unless file_bucket_file
  file_bucket_file.to_s
end

#local? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/puppet/file_bucket/dipper.rb', line 27

def local?
  !! @local_path
end

#restore(file, sum) ⇒ Object

Restore the file



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# File 'lib/puppet/file_bucket/dipper.rb', line 63

def restore(file,sum)
  restore = true
  if FileTest.exists?(file)
    cursum = Digest::MD5.hexdigest(::File.read(file))

    # if the checksum has changed...
    # this might be extra effort
    if cursum == sum
      restore = false
    end
  end

  if restore
    if newcontents = getfile(sum)
      tmp = ""
      newsum = Digest::MD5.hexdigest(newcontents)
      changed = nil
      if FileTest.exists?(file) and ! FileTest.writable?(file)
        changed = ::File.stat(file).mode
        ::File.chmod(changed | 0200, file)
      end
      ::File.open(file, ::File::WRONLY|::File::TRUNC|::File::CREAT) { |of|
        of.print(newcontents)
      }
      ::File.chmod(changed, file) if changed
    else
      Puppet.err "Could not find file with checksum #{sum}"
      return nil
    end
    return newsum
  else
    return nil
  end
end