indexed_gzip

Fast random access of gzip files in Python (by pauldmccarthy)

Indexed_gzip Alternatives

Similar projects and alternatives to indexed_gzip

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better indexed_gzip alternative or higher similarity.

indexed_gzip reviews and mentions

Posts with mentions or reviews of indexed_gzip. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-10-10.
  • How Much Faster Is Making a Tar Archive Without Gzip?
    8 projects | news.ycombinator.com | 10 Oct 2022
    Pragzip actually decompress in parallel and also access at random. I did a Show HN here: https://news.ycombinator.com/item?id=32366959

    indexed_gzip https://github.com/pauldmccarthy/indexed_gzip can also do random access but is not parallel.

    Both have to do a linear scan first though. The implementations however can do the linear scan on-demand, i.e., they scan only as far as needed.

    bzip2 works very well with this approach. xz only works with this approach when compressed with multiple blocks. Similar is true for zstd.

    For zstd, there also exists a seekable variant, which stores the block index at the end as metadata to avoid the linear scan. indexed_zstd offers random access to those files https://github.com/martinellimarco/indexed_zstd

    I wrote pragzip and also combined all of the other random access compression backends in ratarmount to offer random access to TAR files that is magnitudes faster than archivemount: https://github.com/mxmlnkn/ratarmount

  • Is there any windows archival software (free or paid) that can browse tar.gz files without extracting the whole tarball?
    2 projects | /r/DataHoarder | 10 Dec 2021
    The pieces are there. https://github.com/devsnd/tarindexer/blob/master/tarindexer.py is a prototype of indexing and seeking a tar file in python. https://github.com/pauldmccarthy/indexed_gzip allows indexing and seeking a gzip file. If those pieces of code were combined it could give you efficient targeted file extraction, but you'd need to find a coder with enough time and motivation to fuss with it.

Stats

Basic indexed_gzip repo stats
2
92
8.3
6 months ago

pauldmccarthy/indexed_gzip is an open source project licensed under GNU General Public License v3.0 or later which is an OSI approved license.

The primary programming language of indexed_gzip is C.


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