Add flags parameter to BPackageWriter::Init() (and the private
implementation classes) to indicate that an existing package file shall
be updated instead of created. Currently that always happens in-place.
To avoid a clash with the regular version or an extra attribute level we
use the "package:provides.compatible" package attribute instead of
"package:version.major".
handling:
* package attributes are now compatible with the low level attribute
handling of other HPKG attributes (such that 'package dump' now shows
package attributes, too)
* dropped type names from hpkg format, the attributes were identified
by IDs already and this simplifies the code considerably. Type names
are now handled in BLowLevelPackageHandler only.
* instead of rolling their own mechanism, high-level package attributes
handling is now implemented via a corresonding set of
AttributeHandler-subclasses
* adjusted package writer to only write package attributes that are
needed (empty ones are left out)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40466 a95241bf-73f2-0310-859d-f6bbb57e9c96
* PackageWriterImpl no longer accesses members of WriterImplBase
directly, but uses getters/setters instead
* package attribute registration has been moved from PackageWriterImpl
to WriterImplBase, as it will be used in the same manner by the
RepositoryWriter
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40388 a95241bf-73f2-0310-859d-f6bbb57e9c96
* pulled commonly useful parts out of PackageWriterImpl into
WriterImplBase
* moved CachedStringTable and related methods into a separate class,
StringCache, in order to support having more than one string cache
per package file
* made package attribute section use a string cache, too, as that's
going to be very useful for repositories
* instead of writing package attributes directly, we now collect
corresponding PackageAttributes and write those later
* adjusted package reader accordingly
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40376 a95241bf-73f2-0310-859d-f6bbb57e9c96
