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1f633814 |
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17-May-2013 |
Ingo Weinhold <ingo_weinhold@gmx.de> |
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.
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33bc4425 |
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12-Feb-2011 |
Oliver Tappe <zooey@hirschkaefer.de> |
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
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5fb1c6ff |
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30-Jan-2011 |
Oliver Tappe <zooey@hirschkaefer.de> |
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
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0d6b3b20 |
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27-Jan-2011 |
Oliver Tappe <zooey@hirschkaefer.de> |
More work on package kit: * added class BPackageInfo, which contains packaging attributes of a package (the values relevant for package management) * implemented parser (mostly) for reading a BPackageInfo from a config file (.PackageInfo) in order to pass them on to the PackageWriter when creating a package * pulled hpkg-related stuff from bin/package into the package kit * adjusted packagefs-Volume to skip .PackageInfo files when populating the mountpoint, as those files shouldn't appear as part of an activated package git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40301 a95241bf-73f2-0310-859d-f6bbb57e9c96
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1f633814fa347b0bd822f683af731615df600347 |
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17-May-2013 |
Ingo Weinhold <ingo_weinhold@gmx.de> |
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.
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33bc4425be0b545ed3d0b7e7a9a873d31e5a0330 |
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12-Feb-2011 |
Oliver Tappe <zooey@hirschkaefer.de> |
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
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5fb1c6ff1f55fe4094a761b653041b3a0b9abf1d |
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30-Jan-2011 |
Oliver Tappe <zooey@hirschkaefer.de> |
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
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0d6b3b20e15fe2cbeb5e81749f888c26ca289338 |
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27-Jan-2011 |
Oliver Tappe <zooey@hirschkaefer.de> |
More work on package kit: * added class BPackageInfo, which contains packaging attributes of a package (the values relevant for package management) * implemented parser (mostly) for reading a BPackageInfo from a config file (.PackageInfo) in order to pass them on to the PackageWriter when creating a package * pulled hpkg-related stuff from bin/package into the package kit * adjusted packagefs-Volume to skip .PackageInfo files when populating the mountpoint, as those files shouldn't appear as part of an activated package git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40301 a95241bf-73f2-0310-859d-f6bbb57e9c96
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