detools 0.2.0

Binary diff/patch utility.

About

Binary delta encoding utility in Python 3, using C extensions.

Based on http://www.daemonology.net/bsdiff/, with the following differences:

• LZMA compression instead of BZ2 for smaller patches.

• Linear patch file access pattern to allow streaming.

• SA-IS instead of qsufsort for speed and reliability.

Project homepage: https://github.com/eerimoq/detools

Documentation: http://detools.readthedocs.org/en/latest

Installation

pip install detools

Statistics

From name	To name	From size	To size	Patch size	To compressed
python3.5	python3.6	4464400	4568920	1493488	1402663
foo.old	foo.new	2780	2780	192	1934

Example usage

Command line tool

The create patch subcommand

$ detools create_patch tests/files/foo.old tests/files/foo.new foo.patch

The apply patch subcommand

$ detools apply_patch tests/files/foo.old foo.patch foo.new

Contributing

1. Fork the repository.

2. Implement the new feature or bug fix.

3. Implement test case(s) to ensure that future changes do not break legacy.

4. Run the tests.

   make test

5. Create a pull request.