---
- branch: MAIN
  date: Mon Mar 15 12:22:25 UTC 2010
  files:
  - new: '1.6'
    old: '1.5'
    path: pkgsrc/devel/xdelta3/Makefile
    pathrev: pkgsrc/devel/xdelta3/Makefile@1.6
    type: modified
  - new: '1.2'
    old: 1.1.1.1
    path: pkgsrc/devel/xdelta3/PLIST
    pathrev: pkgsrc/devel/xdelta3/PLIST@1.2
    type: modified
  - new: '1.3'
    old: '1.2'
    path: pkgsrc/devel/xdelta3/distinfo
    pathrev: pkgsrc/devel/xdelta3/distinfo@1.3
    type: modified
  id: 20100315T122225Z.198cfd07c5d9ee6cabbf9bcfce82a7ddacd1f77e
  log: |
    Update to 3.0y; install README.

    Monday, February 15, 2010

    Re: 3.0y (source)

    Version 3.0y fixes several regressions introduced in 3.0w related
    to the new support for streaming the source file from a FIFO. This
    was a long-requested feature and I'm pleased to report that now,
    with the fixes in 3.0y, it appears to be working quite well.  The
    upshot of this feature is that you can encode or decode based on
    a compressed source file, without decompressing it to an intermediate
    file. In fact, you can expect the same compression with or without
    a streaming source file.

    There were also reports of the encoder becoming I/O bound in previous
    releases, caused by the encoder improperly seeking backwards farther
    than the settings (namely, the -B flag) allowed. This is also fixed,
    and there's a new test to ensure it won't happen again.

    Update: The built-in support for automatic decompression of inputs
    is interacting badly with the new source handling logic, results
    in poor compression.

    Sunday, October 25, 2009

    Re: 3.0w (source)

    With such a good state of affairs (i.e., no bug reports), I was
    able to tackle a top-requested feature (59, 73). Many of you have
    asked to be able to encode deltas using a FIFO as the source file,
    because it means you can encode/decode from a compressed-on-disk
    source file when you don't have enough disk space for a temporary
    uncompressed copy. This is now supported, with one caveat.

    When decoding with a non-seekable source file, the -B flag, which
    determines how much space is dedicated to its block cache, must be
    set at least as large as was used for encoding. If the decoder
    cannot proceed because -B was not set large enough, you will see:

    xdelta3: non-seekable source: copy is too far back (try raising
    -B): XD3_INTERNAL

    The stream->src->size field has been eliminated. Internally, a new
    stream->src->eof_known state has been introduced. This was a big
    improvement in code quality because, now, the source and target
    files are treated the same with respect to external (de)compression
    and several branches of code are gone for good.
  module: pkgsrc
  subject: 'CVS commit: pkgsrc/devel/xdelta3'
  unixtime: '1268655745'
  user: wiz