Distribution.Solver.Types.PkgConfigDb

Read the list of packages available to pkg-config.

Documentation

newtype PkgConfigDb

The list of packages installed in the system visible to pkg-config.

If an entry is Nothing, this means that the package seems to be present, but we don't know the exact version (because parsing of the version number failed).

Constructors

PkgConfigDb (Map PkgconfigName (Maybe PkgconfigVersion))

Instances

Structured PkgConfigDb

Defined in Distribution.Solver.Types.PkgConfigDb

Methods

structure :: Proxy PkgConfigDb -> Structure

structureHash' :: Tagged PkgConfigDb MD5

Generic PkgConfigDb

Defined in Distribution.Solver.Types.PkgConfigDb

Associated Types

type Rep PkgConfigDb :: Type -> Type

Methods

from :: PkgConfigDb -> Rep PkgConfigDb x

to :: Rep PkgConfigDb x -> PkgConfigDb

Show PkgConfigDb

Defined in Distribution.Solver.Types.PkgConfigDb

Methods

showsPrec :: Int -> PkgConfigDb -> ShowS

show :: PkgConfigDb -> String

showList :: [PkgConfigDb] -> ShowS

Binary PkgConfigDb

Defined in Distribution.Solver.Types.PkgConfigDb

Methods

put :: PkgConfigDb -> Put

get :: Get PkgConfigDb

putList :: [PkgConfigDb] -> Put

type Rep PkgConfigDb

Defined in Distribution.Solver.Types.PkgConfigDb

type Rep PkgConfigDb = D1 ('MetaData "PkgConfigDb" "Distribution.Solver.Types.PkgConfigDb" "cabal-install-solver-3.14.1.0-IrFzCGg0s8s3eDyTwHSw4w" 'True) (C1 ('MetaCons "PkgConfigDb" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (Map PkgconfigName (Maybe PkgconfigVersion)))))

readPkgConfigDb :: Verbosity -> ProgramDb -> IO (Maybe PkgConfigDb)

Query pkg-config for the list of installed packages, together with their versions. Return a PkgConfigDb encapsulating this information.

pkgConfigDbFromList :: [(String, String)] -> PkgConfigDb

Create a PkgConfigDb from a list of (packageName, version) pairs.

pkgConfigPkgIsPresent :: PkgConfigDb -> PkgconfigName -> PkgconfigVersionRange -> Bool

Check whether a given package range is satisfiable in the given pkg-config database.

pkgConfigDbPkgVersion :: PkgConfigDb -> PkgconfigName -> Maybe (Maybe PkgconfigVersion)

Query the version of a package in the pkg-config database. Nothing indicates the package is not in the database, while Just Nothing indicates that the package is in the database, but its version is not known.

getPkgConfigDbDirs :: Verbosity -> ProgramDb -> IO [FilePath]

Query pkg-config for the locations of pkg-config's package files. Use this to monitor for changes in the pkg-config DB.