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Release Java CI CodeQL Java

vavi-util-archive-xad

archiver spi over mac The Unarchiver XADMaster via jna

Install

unar

  • install
$ brew intall unar
  • link for private frameworks location
$ cd ~/Library/Frameworks/
$ ln -s /opt/homebrew/Cellar/unar/x.xx.x/Frameworks/UniversalDetector.framework .
$ ln -s /opt/homebrew/Cellar/unar/x.xx.x/Frameworks/XADMaster.framework .

or

  • java option
-Djna.library.path=/opt/homebrew/Frameworks/...

maven

Usage

    Archive archive = Archives.getArchive(Paths.get("foo/bar.7z").toFile());
    Path outDir = Paths.get("foo/bar");
    for (Entry entry : archive.entries()) {
        Files.copy(archive.getInputStream(entry), outDir.resolve(entry.getName()));
    }

References

TODO

  • frameworks setting for github actions
  • rename package unar -> xad also

Supported Formats

Supported popular formats

Format Support level Notes
Zip Full Full support for the normal zip format, with additional support for AES encryption, Zip64 extensions for large files, Mac OS extensions of many different kinds, and several unusual compression methods (Deflate64, Bzip, LZMA, PPMd). Can also extract .EXE self-extracting files using Zip.
RAR Full Including encryption and multiple volumes. Can also extract .EXE self-extracting files using RAR.
7z No encryption Most compression methods are supported, but no encryption. Also supports Unix extensions.
Tar Full
Gzip Full
Bzip2 Full
LZMA, XZ Full
CAB Full
MSI Full
NSIS Extensive Supports many different versions, starting from version 1.1o
EXE Some Many kinds of .exe self-extracting formats are supported. However, if you find one that is not, please post an issue on the bug tracker.
ISO Full ISO 9660 CDROM filesystem images, and also .bin raw images.
Split files Basic Can join files named .001, .002 that do not use any extra wrapper format.

Supported old formats

Format Support level Was popular on Notes
StuffIt No encryption Mac OS Can unpack all files I've been able to locate.
StuffIt X Partial Mac OS Can unpack many files, some more obscure features are still unsupported. JPEG compression is also unsupported.
DiskDoubler Almost full Mac OS All compression algorithms are implemented, but a few rare ones are untested. If you have some files that do not work, please post them in issue 149 on the bug tracker.
Compact Pro No encryption Mac OS
PackIt Full Mac OS
Cpio Full Unix
Compress (.Z) Full Unix
ARJ No multi-part DOS
ARC, PAK Full DOS
Ace Only old files DOS No support for Ace 2.0 and up (WinAce).
Zoo Full DOS
LZH Full DOS, Amiga (as LhA)
ADF FFS Amiga (emulated)
DMS FFS Amiga Can extract files from compressed Amiga disk images using the regular FFS file system.
LZX Full Amiga
PowerPacker Full Amiga
LBR Full CP/M, DOS
Squeeze Full CP/M, DOS
Crunch Full CP/M
...
Many other old formats, especially Amiga-specific ones, are also supported through libxad, but I have not made a full survey of which ones.

Supported unusual formats

Format Support level Notes
XAR Full Suggested replacement for Tar on Unix. Used in some newer .pkg files on Mac OS X.
RPM Full Linux package format.
ALZip No encryption Archive format which is mainly popular in South Korea. Support for all known compression methods, including Bzip2, Deflate and obfuscated Deflate.
NSA, SAR Partial Game data file. Can unpack all files I've found. If you have ones that do not unpack, please post an issue.
NDS Full Nintendo DS ROM image, which can contain a file system.
Zipx Full WinZip extended Zip files

Unsupported formats, for which support would be good to have

Format Notes Issue number
Ace 2.0 Proprietary, requires reverse engineering. 58
StuffIt X JPEG Propietary, hugely complicated algorithm. Would require lots of reverse engineering. Supposedly patented, but I have been unable to locate the patent (which would contain useful information about the format). 146
DMG Mac OS X disk images with a HFS+ filesystem.
PAR Not an archive format, but recovery records for missing archive parts.
SHK Apple II archive format. 119
Amiga compressors The Amiga had a lot of different single-file compressors. Support for more of these would be useful. libxfd supports many of them, but is mostly 68k only.
Deb Linux package format.