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https://issues.apache.org/jira/browse/COMPRESS-682?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17866967#comment-17866967
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Benjamin Marwell commented on COMPRESS-682:
-------------------------------------------
Here is something to get you started (uncompressed, should make it easier)
[^empty-file-uncompressed.xar]
Created like so:
{code:java}
$ echo "" > empty
$ xar --distribution --compression none -cf empty-file-uncompressed.xar empty
$ file empty-file-uncompressed.xar
empty-file-uncompressed.xar: xar archive compressed TOC: 315, SHA-1 checksum
$ xar -tvf empty-file-uncompressed.xar
-rw-r--r-- unknown/unknown 1 1970-01-01 00:00:00 empty{code}
The --distribution parameter excludes timestamps, users/groups, etc.
> Support XAR archive format
> --------------------------
>
> Key: COMPRESS-682
> URL: https://issues.apache.org/jira/browse/COMPRESS-682
> Project: Commons Compress
> Issue Type: Improvement
> Components: Archivers
> Affects Versions: 1.26.2
> Reporter: Andres Almiray
> Priority: Major
> Attachments: empty-file-uncompressed.xar
>
>
> The XAR archive format definition can be found at
> [https://en.wikipedia.org/wiki/Xar_(archiver)]
>
> There are a couple of Java based implementations but they seem to be no
> longer maintained. Also, they have external dependencies that may no longer
> be required if relying in JDK utility classes and facilities exposed by
> commons-compress
>
> [https://github.com/sprylab/xar] is ASL 2.0
> [https://github.com/gino0631/xar] is LGLG 3.0
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