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Apache Compress Antlib
Apache Compress Antlib™
The Apache Compress Antlib contains tasks and resources that
provide compression/uncompression and archival/unarchival
capabilities based
on
Apache
Commons Compress
Compress Ant Library 1.5
June 13, 2017 - Apache Compress Ant Library 1.5
Available
Apache Compress Ant Library 1.5 is now available for
download as
binary
or
source
release.
Introduction
Using Apache Commons Compress this Antlib supports gzip, xz,
pack200, lzma, snappy, Unix .Z, DEFLATE, LZ4, Brotli and bzip2
compression and ar, arj, cpio, tar, Unix dump, 7z and zip
archives. Support for the dump, Brotli, .Z and arj formats is
read-only. For the 7z format only file based resources are
supported.
The current code base is based on the 1.14 release of Commons
Compress but it is expected that this Antlib follows Commons
Compress' development and will add new compression or
archiving formats as they are provided by the underlying
library.
The gzip and bzip2 tasks and resources are similar to the
corresponding tasks and types in Ant's core and mainly just
use a different code base for the implementation of the
formats.
The same is mostly true for the zip and tar resources as well
as the unzip/tar task with some major differences:
unzip and zipfileset can work with non-File resources.
All zip resources and tasks support Zip64 extensions
i.e. they can deal with large entries, large archives or archives
with many files that Ant's core resources/tasks can not
handle.
untar and tarfileset transparently support POSIX/PAX
extension headers used by modern tar implementations for long
file names or big file sizes - as well as star's extension for
large file sizes used by star and GNU tar.
The tar task can use PAX extension headers for long file
names or big file sizes or star's extension. Archives created
with the POSIX format will be readable by GNU tar but also by
all modern native tar implementations.
The zip and tar tasks are completely new implementations and
offer a superset of the functionality of the core tasks.
Tasks and resources for the ar, arj, dump, 7z and cpio
formats mirror those available for tar and zip. Those for
pack200, lzma, snappy, brotli, lz4, .Z and xz mirror those of gzip and
bzip2.
All tasks and types can be mixed with the core tasks and
types; it is possible to use the core zip task to create an
archive based on a cpiofileset for example.
As of version 1.5, the Compress Antlib requires Java 7 or higher.
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