Archive

LIMITATIONS

Archive:

• Wrong mtime, chown, chgrp for symlinks extracted from the archive.
  --> lchown, lchgrp are not (yet) implemented in PHP.
  --> Touch resolves the symlink.

Tar:

• Pax: Writing to archive is not implemented.
• Gnu: Writing to archive is not implemented.

Zip:

• Text or binary-file bit is not set in the (created) archive.
• Extracting of a file is done all in memory.
  --> Extracting a deflated file without a header is recently fixed in PHP.
  (Use string filter)
• Check the bitflag, because it is now always 0.
• We use the same version as InfoZip (10).
• Files are always compressed with the deflate algorithm.
  --> Need to find out the best algorithm. E.g. no compression on small files
  or files that are already compressed.
• Zip64 is not implemented.

File:

• Common functions from character and blockfile must be moved to ArchiveFile.

Tests:

• Some tests use executables: tar, gzip, bzip2 and will probably not work on
  other machines or platforms.