zhangwuzheng / jbsdiff

Java implementation of the bsdiff algorithm

jbsdiff

A Java implementation of bsdiff (http://www.daemonology.net/bsdiff/)

Usage

jbsdiff can be used from its command line interface:

java -jar jbsdiff.jar command oldfile newfile patchfile

Where command is either 'diff' or 'patch.' You can also specify the compression algorithm used during a diff operation by setting a system property:

java -Djbsdiff.compressor=gz -jar jbsdiff.jar diff a.bin b.bin patch.gz

Supported compression algorithms (from the Apache Commons Compress library) are bzip2 (the default), gz, pack200, and xz.

...but jbsdiff is mostly intended to be used as a library. See the ui package for usage examples.

Compiling

To build a local fat jar, run:

mvn clean package

Dependency Information

Available on Maven Central:

<dependency>
  <groupId>io.sigpipe</groupId>
  <artifactId>jbsdiff</artifactId>
  <version>1.0</version>
</dependency>

Also available at