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From "Bear Giles (JIRA)" <>
Subject [jira] [Updated] (COMPRESS-132) Add support for unix dump files
Date Sun, 26 Jun 2011 23:05:47 GMT


Bear Giles updated COMPRESS-132:


This is a proof-of-concept implementation for dump archive files. It handles ZLIB compression
(and can easily add BZLIB compression when available) and sparse files. I haven't added support
for extended attributes yet or for deleted files (in incremental backups) yet.

I have verified the test extraction of a 1GB compressed backup.

> Add support for unix dump files
> -------------------------------
>                 Key: COMPRESS-132
>                 URL:
>             Project: Commons Compress
>          Issue Type: Improvement
>          Components: Archivers
>            Reporter: Bear Giles
>            Priority: Minor
>         Attachments:
> I'm submitting a series of patches to the ext2/3/4 dump utility and noticed that the
commons-compress library doesn't have an archiver for it. It's as old as tar and fills a similar
niche but the later has become much more widely used. Dump includes support for sparse files,
extended attributes, mac os finder, SELinux labels (I think), and more. Incremental  dumps
can capture that files have been deleted.
> I should have initial support for a decoder this weekend. I can read the directory entries
and inode information (file permissions, etc.) but need a bit more work on extracting the
content as an InputStream.

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