Class: SmcUtil::FileExtractor

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

Constant Summary collapse

OUTPUT_FILE_FLAGS = 
File::CREAT | File::TRUNC | File::WRONLY

Instance Method Summary collapse

Constructor Details

#initialize(file_reader) ⇒ FileExtractor

Returns a new instance of FileExtractor.



4
5
6
 
# File 'lib/smcutil/file_extractor.rb', line 4

def initialize(file_reader)
  @file_reader = file_reader
end

Instance Method Details

#extract_to(path) ⇒ Object 



9
10
11
12
13
14
15
16
17
18
 
# File 'lib/smcutil/file_extractor.rb', line 9

def extract_to(path)
  File.open(path, OUTPUT_FILE_FLAGS) do |file|
    @file_reader.regions.each do |region|
      range_bytes = region.offset - file.pos
      file.write "\0" * range_bytes if range_bytes > 0
      file.seek region.offset
      file.write region.data
    end
  end
end