Merge pull request #139 from artygus/ag/improve-zip-reading

Improve zip reading

lib/gepub/book.rb

@@ -102,9 +102,9 @@ def self.parse(io)
       package = nil
       package_path = nil
       book = nil
-      Zip::InputStream::open(io) {
-        |zis|
-        package, package_path = parse_container(zis, files)
+      Zip::File.open_buffer(io) {
+        |zip_file|
+        package, package_path = parse_container(zip_file, files)
         check_consistency_of_package(package, package_path)
         parse_files_into_package(files, package)
         book = Book.new(package.path)
@@ -379,12 +379,12 @@ def ncx_xml
     end
 
     private
-    def self.parse_container(zis, files) 
+    def self.parse_container(zip_file, files) 
       package_path = nil
       package = nil
-      while entry = zis.get_next_entry
+      zip_file.each do |entry|
         if !entry.directory?
-          files[entry.name] = zis.read
+          files[entry.name] = zip_file.read(entry)
           case entry.name
           when MIMETYPE then
             if files[MIMETYPE] != MIMETYPE_CONTENTS

spec/book_spec.rb

@@ -395,6 +395,12 @@
        expect(book.items['p-001'].href).to eq 'xhtml/p-001.xhtml'
        expect(book.items['p-001'].content.encoding).to eq Encoding::UTF_8       
       end
+      it 'reads EPUB with streamed entries' do
+       filehandle = File.new(File.dirname(__FILE__) + '/fixtures/testdata/streamed_item.epub')
+       book = GEPUB::Book.parse(filehandle)
+       expect(book).to be_instance_of GEPUB::Book
+       expect(book.items.size).to eq 3
+      end
      end
     end
   end