Stanko K.R.
5bbd7f633d
The old implementation loaded files into memory to provide an IO interface. This has the obvious downside of loading any file included in the import, e.g. a 10GB video file, into memory. ZipKit has no native IO object for reading but it provides all the necessary methods to implement one.
29 lines
738 B
Ruby
29 lines
738 B
Ruby
class ZipFile::Reader
|
|
def initialize(io)
|
|
@io = io
|
|
@reader = ZipKit::FileReader.read_zip_structure(io: io)
|
|
end
|
|
|
|
def read(file_path)
|
|
entry = @reader.find { |e| e.filename == file_path }
|
|
raise ArgumentError, "File not found in zip: #{file_path}" unless entry
|
|
raise ArgumentError, "Cannot read directory entry: #{file_path}" if entry.filename.end_with?("/")
|
|
|
|
extractor = entry.extractor_from(@io)
|
|
|
|
if block_given?
|
|
yield ZipFile::Reader::ExtractorIO.new(extractor)
|
|
else
|
|
extractor.extract
|
|
end
|
|
end
|
|
|
|
def glob(pattern)
|
|
@reader.map(&:filename).select { |name| File.fnmatch(pattern, name) }.sort
|
|
end
|
|
|
|
def exists?(file_path)
|
|
@reader.any? { |e| e.filename == file_path }
|
|
end
|
|
end
|