Fix catching polymorphic type by value

Replace catching polymorphic type std::bad_alloc 'by value'
with 'by reference'.
Pointed by gcc8

BPackageWriter: Add BPositionIO support

package kit: Actually add support for B_HPKG_COMPRESSION_NONE

Until now we always declared in the HPKG header that the package file is
zlib compressed. For uncompressed files we would just store all
individual chunks uncompressed. Now we handle completely uncompressed
files slightly differently: We don't write the redundant chunk size
table anymore. The size savings are minor, but it makes the uncompressed
format read-streamable which may be handy.

Add support for adding a package-info to BRepositoryWriter.

Repository file format: group attributes of a package

* Introduce new package attribute B_HPKG_ATTRIBUTE_ID_PACKAGE (valid
only in a repository file) to group the attributes belonging to a
package.
* BRepositoryContentHandler:
- No longer derive from BPackageContentHandler.
- Add hooks HandlePackage() and HandlePackageDone() that bracket the
attributes for a package. This is more explicit and robust than
handlers having to guess when one package ended and the next began.
* BRepositoryCache: Make use of BPackageInfoContentHandler. No need to
duplicate the code for reading a package info from package info
attributes.

repository writer: fix use of incorrect header size

The header size of the package file header was used, which resulted in
broken repository files.

RepositoryWriterImpl::_AddPackage(): more info in error messages

Also allow source packages in a repository for any architecture

RepositoryWriterImpl: Write the heap fields in the header

Package/repository file format: Add a minor version header field

* Add minor_version to hpkg_header and hpkg_repo_header and make
heap_compression uint16.
* If the minor version of a package/repository file is greater than the
current one unknown attributes are ignored without error. This allows
introducing new harmless attributes without making the resulting files
unreadable for older package kit versions.

Allow specifying the compression level for package creation

* Introduce BPackageWriterParameters which comprises all parameters
for package creation, currently flags and compression level. Such an
object can be passed to BPackageWriter::Init() and is passed on to
PackageWriterImpl and WriterImplBase.
* PackageFileHeapWriter: Add compressionLevel property and pass the
value on to ZlibCompressor.
* package add/create: Add options -0 ... -9 to specify the compression
level to be used.

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.

Rename BBlockBufferCache and friends to *Pool*

Also move BBlockBufferPoolNoLock into BHPKG namespace with the other
classes. Not sure why it wasn't there before.

package kit: internalize BPackageDataReader

It is no longer public (or even private) API. BPackageDataReaderFactory
returns a BAbstractBufferedDataReader instead. The advantage is that
the latter doesn't have hpkg format specific dependencies.

Add class BPackageInfoContentHandler

A BPackageContentHandler subclass that initializes a BPackageInfo from
the read package attributes. Pulled out of RepositoryWriterImpl's
PackageContentHandler.

Use BStringList in package kit

Replace all instances of BObjectList<BString> by BStringList.

Handle the newer package attributes

Add support for adding/updating package entries

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.

Add class BPackageInfoContentHandler

A BPackageContentHandler subclass that initializes a BPackageInfo from
the read package attributes. Pulled out of RepositoryWriterImpl's
PackageContentHandler.

Use BStringList in package kit

Replace all instances of BObjectList<BString> by BStringList.

Handle the newer package attributes

Add support for adding/updating package entries

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.

* prefer HashSet and HashMap to respective std-classes where possible

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40518 a95241bf-73f2-0310-859d-f6bbb57e9c96

* implemented repository reader and fixed some bugs in writer that
have been exposed during testing of reader

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40494 a95241bf-73f2-0310-859d-f6bbb57e9c96

* added embedding of license texts that need approval into repository

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40491 a95241bf-73f2-0310-859d-f6bbb57e9c96

Largish adjustments to PackagerReaderImpl and package attribute
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

Fix problems in repository writer
* actually write the checksum
* compress the repository info archive, too (handle it as separate
section)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40426 a95241bf-73f2-0310-859d-f6bbb57e9c96

Some cleanup, no functional change
* typedef base classes as 'inherited' and use that instead of the
explicit base class name
* remove superfluous scopes in case blocks


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40420 a95241bf-73f2-0310-859d-f6bbb57e9c96

Implemented repository writing:
* fleshed out RepositoryWriterImpl
* renamed BRepositoryHeader to BRepositoryInfo (in accordance with
BPackageInfo)
* adjusted BRepositoryInfo to be able to parse itself from a
driver_settings file
* added package_repo binary (only 'create' works as of yet)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40405 a95241bf-73f2-0310-859d-f6bbb57e9c96

* add stubbed RepositoryWriter to build

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40394 a95241bf-73f2-0310-859d-f6bbb57e9c96

Cleanup:
* 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

BPackageWriter: Add BPositionIO support

package kit: Actually add support for B_HPKG_COMPRESSION_NONE

Until now we always declared in the HPKG header that the package file is
zlib compressed. For uncompressed files we would just store all
individual chunks uncompressed. Now we handle completely uncompressed
files slightly differently: We don't write the redundant chunk size
table anymore. The size savings are minor, but it makes the uncompressed
format read-streamable which may be handy.

Add support for adding a package-info to BRepositoryWriter.

Repository file format: group attributes of a package

* Introduce new package attribute B_HPKG_ATTRIBUTE_ID_PACKAGE (valid
only in a repository file) to group the attributes belonging to a
package.
* BRepositoryContentHandler:
- No longer derive from BPackageContentHandler.
- Add hooks HandlePackage() and HandlePackageDone() that bracket the
attributes for a package. This is more explicit and robust than
handlers having to guess when one package ended and the next began.
* BRepositoryCache: Make use of BPackageInfoContentHandler. No need to
duplicate the code for reading a package info from package info
attributes.

repository writer: fix use of incorrect header size

The header size of the package file header was used, which resulted in
broken repository files.

RepositoryWriterImpl::_AddPackage(): more info in error messages

Also allow source packages in a repository for any architecture

RepositoryWriterImpl: Write the heap fields in the header

Package/repository file format: Add a minor version header field

* Add minor_version to hpkg_header and hpkg_repo_header and make
heap_compression uint16.
* If the minor version of a package/repository file is greater than the
current one unknown attributes are ignored without error. This allows
introducing new harmless attributes without making the resulting files
unreadable for older package kit versions.

Allow specifying the compression level for package creation

* Introduce BPackageWriterParameters which comprises all parameters
for package creation, currently flags and compression level. Such an
object can be passed to BPackageWriter::Init() and is passed on to
PackageWriterImpl and WriterImplBase.
* PackageFileHeapWriter: Add compressionLevel property and pass the
value on to ZlibCompressor.
* package add/create: Add options -0 ... -9 to specify the compression
level to be used.

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.

Rename BBlockBufferCache and friends to *Pool*

Also move BBlockBufferPoolNoLock into BHPKG namespace with the other
classes. Not sure why it wasn't there before.

package kit: internalize BPackageDataReader

It is no longer public (or even private) API. BPackageDataReaderFactory
returns a BAbstractBufferedDataReader instead. The advantage is that
the latter doesn't have hpkg format specific dependencies.

Add class BPackageInfoContentHandler

A BPackageContentHandler subclass that initializes a BPackageInfo from
the read package attributes. Pulled out of RepositoryWriterImpl's
PackageContentHandler.

Use BStringList in package kit

Replace all instances of BObjectList<BString> by BStringList.

Handle the newer package attributes

Add support for adding/updating package entries

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.

Add class BPackageInfoContentHandler

A BPackageContentHandler subclass that initializes a BPackageInfo from
the read package attributes. Pulled out of RepositoryWriterImpl's
PackageContentHandler.

Use BStringList in package kit

Replace all instances of BObjectList<BString> by BStringList.

Handle the newer package attributes

Add support for adding/updating package entries

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.

* prefer HashSet and HashMap to respective std-classes where possible

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40518 a95241bf-73f2-0310-859d-f6bbb57e9c96

* implemented repository reader and fixed some bugs in writer that
have been exposed during testing of reader

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40494 a95241bf-73f2-0310-859d-f6bbb57e9c96

* added embedding of license texts that need approval into repository

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40491 a95241bf-73f2-0310-859d-f6bbb57e9c96

Largish adjustments to PackagerReaderImpl and package attribute
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

Fix problems in repository writer
* actually write the checksum
* compress the repository info archive, too (handle it as separate
section)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40426 a95241bf-73f2-0310-859d-f6bbb57e9c96

Some cleanup, no functional change
* typedef base classes as 'inherited' and use that instead of the
explicit base class name
* remove superfluous scopes in case blocks


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40420 a95241bf-73f2-0310-859d-f6bbb57e9c96

Implemented repository writing:
* fleshed out RepositoryWriterImpl
* renamed BRepositoryHeader to BRepositoryInfo (in accordance with
BPackageInfo)
* adjusted BRepositoryInfo to be able to parse itself from a
driver_settings file
* added package_repo binary (only 'create' works as of yet)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40405 a95241bf-73f2-0310-859d-f6bbb57e9c96

* add stubbed RepositoryWriter to build

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40394 a95241bf-73f2-0310-859d-f6bbb57e9c96

Cleanup:
* 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