| License | BSD3 |
|---|---|
| Maintainer | simons@cryp.to |
| Stability | provisional |
| Portability | portable |
| Safe Haskell | None |
| Language | Haskell98 |
Distribution.Hackage.DB
Description
This module provides simple access to the Hackage database by means
of Map. Note that once the database has been parsed, it can be
accessed quickly, but the inital cost of reading 00-index.tar is
fairly high.
- type Hackage = Map String (Map Version GenericPackageDescription)
- readHackage :: IO Hackage
- readHackage' :: FilePath -> IO Hackage
- parseHackage :: ByteString -> Hackage
- module Data.Map
- module Data.Version
- module Distribution.Package
- module Distribution.PackageDescription
Documentation
type Hackage = Map String (Map Version GenericPackageDescription)
A Map representation of the Hackage database. For sake of
simplicity, we use String rather than PackageName to represent
the name of a package.
readHackage :: IO Hackage
Read the Hackage database from
$HOME/.cabal/packages/hackage.haskell.org/00-index.tar and
return a Map that provides fast access to its contents. That tar
file is typically created by running the command "cabal update".
readHackage' :: FilePath -> IO Hackage
parseHackage :: ByteString -> Hackage
Parse the contents of Hackage's 00-index.tar into a Hackage map.
module Data.Map
module Data.Version
module Distribution.Package