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-The following is a list of things I would like to see
-done with libarchive. It's sorted roughly in priority;
-more feasible and more often-requested items are higher
-on the list. If you think you have time to work on any
-of these, please let me know.
-
-* More compression options: Recent improvements to the
- read bidding system and external program support should
- make it very simple to add support for lzo, lzf, and
- many other command-line decompression programs.
- I've even written up a Wiki page describing how to
- do this.
-
-* cpio front-end. The basic bsdcpio front-end is now
- working. I'm looking for feedback about what additional
- features are necessary.
-
-* pax front-end. Once cpio is a little more stable, I plan
- to fork it as the basis of a pax front-end. The only really
- tricky part will be implementing the header-editing features
- from POSIX 2001 'pax', which will require some changes to
- the libarchive API.
-
-* libarchive on Windows. libarchive mostly builds cleanly
- on Windows and Visual Studio. Making this really clean
- requires reworking the public API to not use dev/ino; I
- think I know how to do this but could use advice from
- someone knowledgable about Windows file-management APIs.
-
-* Linux large-file/small-file dance. libarchive always
- builds with 64-bit off_t and stat structures; client programs
- don't always do this. Supporting client programs built
- with 32-bit off_t requires a little trickery. I know how
- to do this but haven't had time to work through it.
-
-* bsdtar on Windows. After libarchive is working on Windows,
- this should be much simpler. At worst, you can just disable
- features.
-
-* Writing tar sparse entries. The GNU "1.0" sparse format
- sucks a lot less than the old GNU sparse format, so I'm finally
- dropping my objections to sparse file writing. This requires
- extending archive_entry to support a block list, and will
- require extensive changes to bsdtar to generate block lists.
- The sparse read code will also need to put block lists into
- the entry so that archive-to-archive copies preserve sparseness.
-
-* ISO9660 writing. Writing ISO9660 requires two passes, and
- libarchive is a single-pass API. For ISO9660, you can hide
- that behind a temp file, though. Collect metadata in memory,
- append file bodies (properly padded to 2k sector boundaries)
- to a temp file, then format the directory section and copy
- the file data through at format close.
-
-* archive_read_disk: Currently, libarchive can generate a stream
- of entries from an archive file and can feed entries to an
- archive file or a directory. The missing corner is pulling
- entries from a directory. With that, libarchive can provide
- efficient bulk copy services for dir-to-dir, dir-to-archive,
- archive-to-dir, and archive-to-archive. Right now, the
- read-from-disk capabilities are handled in the client.
-
-* ISO9660 Level 3. ISO9660 Level 3 supports files over 4GB.
-
-* --split=<limit> option to bsdtar. This would watch the total output
- size and begin a new archive file whenever <next file size> +
- <total archive size> exceeded <limit>. Not as robust as
- GNU tar's ability to split an entry across archives, but still
- useful in many situations.
-
-* Filename matching extensions: ^ to anchor a pattern to the
- beginning of the file, [!...] negated character classes, etc.