Maybe Groovy doesn’t have ‘native’ support for zip files, but it is still pretty trivial to work with them. I’m working with zip files and the following is some of the logic I’m using: def zipFile = new java.util.zip.ZipFile(new File(‘some.zip’)) zipFile.entries().each { println zipFile.getInputStream(it).text } You can add additional logic using a findAll method: def … Read more
I have a big Answer!! The Problem comes from the Android System or/and the FAT32 system. I can not explain how the system gets the error, it has something to do with deleting files and the FAT32 System. But the solution is really easy: Before you delete a Directory or File: rename it! Code to … Read more
I don’t know if unzipping on Android is slow, but copying byte for byte in a loop is surely slowing it down even more. Try using BufferedInputStream and BufferedOutputStream – it might be a bit more complicated, but in my experience it is worth it in the end. BufferedInputStream in = new BufferedInputStream(zin); BufferedOutputStream out … Read more
Take a look at this Stack Overflow question, the answers there contains references to multiple compressing engines implemented in javascript. Most of these are based on LZ77.
Warning, the code here is ok for trusted zip files, there’s no path validation before write which may lead to security vulnerability as described in zip-slip-vulnerability if you use it to deflate an uploaded zip file from unknown client. This solution is very similar to the previous solutions already posted, but this one recreates the … Read more
To extract files from a .tar.gz file you can use the following methods from packages distributed with Ruby: require ‘rubygems/package’ require ‘zlib’ tar_extract = Gem::Package::TarReader.new(Zlib::GzipReader.open(‘Path/To/myfile.tar.gz’)) tar_extract.rewind # The extract has to be rewinded after every iteration tar_extract.each do |entry| puts entry.full_name puts entry.directory? puts entry.file? # puts entry.read end tar_extract.close Each entry of type Gem::Package::TarReader::Entry … Read more
You can use zipfile.ZipFile.open: import shutil import zipfile with zipfile.ZipFile(‘/path/to/my_file.apk’) as z: with z.open(‘/res/drawable/icon.png’) as zf, open(‘temp/icon.png’, ‘wb’) as f: shutil.copyfileobj(zf, f) Or use zipfile.ZipFile.read: import zipfile with zipfile.ZipFile(‘/path/to/my_file.apk’) as z: with open(‘temp/icon.png’, ‘wb’) as f: f.write(z.read(‘/res/drawable/icon.png’))