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Commits on Jun 20, 2010
  1. @vslavik @andymatuschak

    Don't compress in bsdiff.

    vslavik committed with andymatuschak
    bsdiff-produced patch is included in xar archive, where it's compressed
    with bzip2 a second time. Leaving the bsdiff output uncompressed makes
    it possible to compress it better in xar (e.g. using LZMA2 or gzip,
    either of which performs better on some files).
    Changes header signature of bsdiff patch file to BSDIFN40 to clearly
    mark the format as different.
    Backward compatibility is preserved, bspatch can read both BSDIFF40 and
    BSDIFN40 formats.
Commits on Mar 28, 2010
  1. @andymatuschak
Commits on Aug 21, 2009
  1. Add a command-line tool that can generate and apply a binary delta be…

    Mark Rowe committed
    …tween two versions of an application.
    The delta file is a custom format created from the xar container format.  It describes the necessary
    modifications to transform the contents of the old directory in to the contents of the new.  Binary
    diffs are used to compress the differences between large files such as Mach-O binaries.  The binary
    diffs are generated by bsdiff and applied via bspatch, both from bsdiff 4.3, the source of which is
    included and used under a BSD-style license.
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