Commit Graph

5 Commits

Author SHA1 Message Date
Ingo Weinhold
d59e0feb59 package: Suppress version mismatch errors where V1 is supported
* Add flags parameter to Init() of BPackageReader and friends.
* Introduce flag B_HPKG_READER_DONT_PRINT_VERSION_MISMATCH_MESSAGE and
  don't print a version mismatch error when given.
* package extract/list: Use the new flag.
2013-05-25 01:12:31 +02:00
Ingo Weinhold
1f633814fa hpkg format: compress the whole heap
Instead of handling compression for individual file/attribute data we
do now compress the whole heap where they are stored. This
significantly improves compression ratios. We still divide the
uncompressed data into 64 KiB chunks and use a chunk offset array for
the compressed chunks to allow for quick random access without too much
overhead. The tradeoff is a limited possible compression ratio -- i.e.
we won't be as good as tar.gz (though surprisingly with my test
archives we did better than zip).

The other package file sections (package attributes and TOC) are no
longer compressed individually. Their uncompressed data are simply
pushed onto the heap where the usual compression strategy applies. To
simplify things the repository format has been changed in the same
manner although it doesn't otherwise use the heap, since it only stores
meta data.

Due to the data compression having been exposed in public and private
API, this change touches a lot of package kit using code, including
packagefs and the boot loader packagefs support. The latter two haven't
been tested yet. Moreover packagefs needs a new kind of cache so we
avoid re-reading the same heap chunk for two different data items it
contains.
2013-05-25 01:12:25 +02:00
Oliver Tappe
45d9aa68ff Fix header guard (in comment)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40428 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-02-10 19:09:14 +00:00
Oliver Tappe
95d84e4176 * attributed copyright in all public HPKG headers to Haiku, Inc.
* added my own copyright to a couple of files that I changed


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40321 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-01-30 15:15:33 +00:00
Oliver Tappe
5fb1c6ff1f Refactored hpkg implementation to provide some separation between
public and private API (still far from ideal, but a start):
* moved several HPKG-classes into the public namespace BPackageKit::HPKG
* added fImpl-wrappers around PackageReader and PackageWriter to hide
  most of the gory details
* adjusted 'package'-binary and packagefs accordingly


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40320 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-01-30 15:05:38 +00:00