Open debian package with Java
Are there any libraries in Java fo开发者_运维百科r unpacking a .deb (debian) archive? Unfortunately I Couldn't find anything useful out there yet. Thanks.
If you by unpacking mean extracting the files, it should be possible with Apache Commons Compress. A .deb file is "implemented as an ar archive" and Commons Compress is able to uncompress ar archives.
Ok, so as suggested I've used apache commons compress and here's a method that does the trick. Downladed it from the maven repo: http://mvnrepository.com/artifact/org.apache.commons/commons-compress/1.2.
/**
* Unpack a deb archive provided as an input file, to an output directory.
* <p>
*
* @param inputDeb the input deb file.
* @param outputDir the output directory.
* @throws IOException
* @throws ArchiveException
*
* @returns A {@link List} of all the unpacked files.
*
*/
private static List<File> unpack(final File inputDeb, final File outputDir) throws IOException, ArchiveException {
LOG.info(String.format("Unzipping deb file %s.", deb.getAbsoluteFile()));
LOG.info(String.format("Into dir %s.", outDir.getAbsoluteFile()));
final List<File> unpackedFiles = new LinkedList<File>();
final InputStream is = new FileInputStream(inputDeb);
final ArArchiveInputStream debInputStream = (ArArchiveInputStream) new ArchiveStreamFactory().createArchiveInputStream("ar", is);
ArArchiveEntry entry = null;
while ((entry = (ArArchiveEntry)debInputStream.getNextEntry()) != null) {
LOG.info("Read entry");
final File outputFile = new File(outputDir, entry.getName());
final OutputStream outputFileStream = new FileOutputStream(outputFile);
IOUtils.copy(debInputStream, outputFileStream);
outputFileStream.close();
unpackedFiles.add(outputFile);
}
debInputStream.close();
return unpackedFiles;
}
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