This library provides Haskell bindings to LevelDB

History

Version 0.3.0:

• ResourceT is no longer compulsory

Version 0.2.0:

• requires LevelDB v1.7
• support for filter policy (LevelDB v1.5), either custom or using the built-in bloom filter implementation
• write batch values no longer require a memcpy to be early-finalizer-safe (introduced in 0.1.1)

Version 0.1.0:

• memory (foreign pointers) is managed through ResourceT. Note that this requires to lift monadic actions inside the MonadResource monad, see the examples.
• links against shared library (LevelDB v1.3 or higher)
• LevelDB 1.3 API fully supported (including custom comparators, excluding custom environments)

Version 0.0.x:

• experimental releases

Installation

Prerequisites:

• GHC 7.*
• Cabal, version 1.3 or higher
• LevelDB
• Optional: Snappy, if compression support is desired

Note: as of version 1.3, LevelDB can be built as a shared library. Thus, as of version 0.1.0 of this library, LevelDB is no longer bundled and must be installed on the target system.

To install the latest version from hackage:

$ cabal install leveldb-haskell

To install from checked-out source:

$ cabal install

Notes

This library is in very early stage and has seen very limited testing. Comments and contributions are welcome.

Bugs and Contributing

Please report issues via http://github.com/kim/leveldb-haskell/issues.
Patches are best submitted as pull requests, or via email ([email protected]).

License

BSD 3, see LICENSE file.