Safe Haskell	None
Language	Haskell2010

Language.Haskell.Tools.Daemon.PackageDB

Description

Setting the package database to use when compiling modules. The daemon must have one single package database that cannot be changed after a package is loaded using that package database. Available package databases are the cabal global, the cabal sandbox, the stack or one that had been explicitely set by a file path.

Synopsis

data PackageDB
- = DefaultDB
- | CabalSandboxDB
- | StackDB
- | ExplicitDB {
  - packageDBPath :: [FilePath]
  }
decidePkgDB :: [FilePath] -> IO (Maybe PackageDB)
packageDBLoc :: PackageDB -> FilePath -> IO [FilePath]
detectAutogen :: FilePath -> PackageDB -> IO (Maybe FilePath)

Documentation

data PackageDB Source #

Possible package database configurations.

Constructors

DefaultDB	Use the global cabal package database (like when using ghc).
CabalSandboxDB	Use the sandboxed cabal package database.
StackDB	Use the stack package databases (local and snapshot).
ExplicitDB	Set the package database explicitely.
Fields packageDBPath :: [FilePath]

Instances

Eq PackageDB Source #
Instance details Defined in Language.Haskell.Tools.Daemon.PackageDB Methods (==) :: PackageDB -> PackageDB -> Bool # (/=) :: PackageDB -> PackageDB -> Bool #
Show PackageDB Source #
Instance details Defined in Language.Haskell.Tools.Daemon.PackageDB Methods showsPrec :: Int -> PackageDB -> ShowS # show :: PackageDB -> String # showList :: [PackageDB] -> ShowS #
Generic PackageDB Source #
Instance details Defined in Language.Haskell.Tools.Daemon.PackageDB Associated Types type Rep PackageDB :: Type -> Type # Methods from :: PackageDB -> Rep PackageDB x # to :: Rep PackageDB x -> PackageDB #
FromJSON PackageDB Source #
Instance details Defined in Language.Haskell.Tools.Daemon.PackageDB Methods parseJSON :: Value -> Parser PackageDB parseJSONList :: Value -> Parser [PackageDB]
type Rep PackageDB Source #
Instance details Defined in Language.Haskell.Tools.Daemon.PackageDB type Rep PackageDB = D1 (MetaData "PackageDB" "Language.Haskell.Tools.Daemon.PackageDB" "haskell-tools-daemon-1.1.1.0-Eiua9vsHGthI15B7hKxUY5" False) ((C1 (MetaCons "DefaultDB" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "CabalSandboxDB" PrefixI False) (U1 :: Type -> Type)) :+: (C1 (MetaCons "StackDB" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "ExplicitDB" PrefixI True) (S1 (MetaSel (Just "packageDBPath") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 [FilePath]))))

decidePkgDB :: [FilePath] -> IO (Maybe PackageDB) Source #

Decide which type of project we are dealing with based on the package folders. Should only be invoked if the user did not select the project-type.

packageDBLoc :: PackageDB -> FilePath -> IO [FilePath] Source #

Finds the location of the package database based on the configuration.

detectAutogen :: FilePath -> PackageDB -> IO (Maybe FilePath) Source #

Gets the (probable) location of autogen folder depending on which type of build we are using.