Cabal-3.0.0.0: A framework for packaging Haskell software

CopyrightIsaac Jones 2003-2005
LicenseBSD3
Maintainercabal-devel@haskell.org
Portabilityportable
Safe HaskellNone
LanguageHaskell2010

Distribution.Simple

Contents

Description

This is the command line front end to the Simple build system. When given the parsed command-line args and package information, is able to perform basic commands like configure, build, install, register, etc.

This module exports the main functions that Setup.hs scripts use. It re-exports the UserHooks type, the standard entry points like defaultMain and defaultMainWithHooks and the predefined sets of UserHooks that custom Setup.hs scripts can extend to add their own behaviour.

This module isn't called "Simple" because it's simple. Far from it. It's called "Simple" because it does complicated things to simple software.

The original idea was that there could be different build systems that all presented the same compatible command line interfaces. There is still a Distribution.Make system but in practice no packages use it.

Synopsis

Documentation

data AbiTag #

Constructors

NoAbiTag 
AbiTag String 
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Eq AbiTag # 
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(==) :: AbiTag -> AbiTag -> Bool #

(/=) :: AbiTag -> AbiTag -> Bool #

Read AbiTag # 
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Show AbiTag # 
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Generic AbiTag # 
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type Rep AbiTag :: Type -> Type #

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from :: AbiTag -> Rep AbiTag x #

to :: Rep AbiTag x -> AbiTag #

Binary AbiTag # 
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put :: AbiTag -> Put #

get :: Get AbiTag #

putList :: [AbiTag] -> Put #

Pretty AbiTag # 
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Parsec AbiTag # 
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parsec :: CabalParsing m => m AbiTag #

type Rep AbiTag # 
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type Rep AbiTag = D1 (MetaData "AbiTag" "Distribution.Compiler" "Cabal-3.0.0.0-CD1INMNwoxXIKVgcu1nec5" False) (C1 (MetaCons "NoAbiTag" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "AbiTag" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 String)))

data CompilerInfo #

Compiler information used for resolving configurations. Some fields can be set to Nothing to indicate that the information is unknown.

Constructors

CompilerInfo 

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Read CompilerInfo # 
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Show CompilerInfo # 
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Generic CompilerInfo # 
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type Rep CompilerInfo :: Type -> Type #

Binary CompilerInfo # 
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type Rep CompilerInfo # 
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type Rep CompilerInfo = D1 (MetaData "CompilerInfo" "Distribution.Compiler" "Cabal-3.0.0.0-CD1INMNwoxXIKVgcu1nec5" False) (C1 (MetaCons "CompilerInfo" PrefixI True) ((S1 (MetaSel (Just "compilerInfoId") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 CompilerId) :*: S1 (MetaSel (Just "compilerInfoAbiTag") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 AbiTag)) :*: (S1 (MetaSel (Just "compilerInfoCompat") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Maybe [CompilerId])) :*: (S1 (MetaSel (Just "compilerInfoLanguages") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Maybe [Language])) :*: S1 (MetaSel (Just "compilerInfoExtensions") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Maybe [Extension]))))))

data CompilerId #

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Eq CompilerId # 
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Ord CompilerId # 
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Read CompilerId # 
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Show CompilerId # 
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Generic CompilerId # 
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type Rep CompilerId :: Type -> Type #

Binary CompilerId # 
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NFData CompilerId # 
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rnf :: CompilerId -> () #

Pretty CompilerId # 
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Parsec CompilerId # 
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parsec :: CabalParsing m => m CompilerId #

type Rep CompilerId # 
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data PerCompilerFlavor v #

PerCompilerFlavor carries only info per GHC and GHCJS

Cabal parses only ghc-options and ghcjs-options, others are omitted.

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PerCompilerFlavor v v 
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Eq v => Eq (PerCompilerFlavor v) # 
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Data v => Data (PerCompilerFlavor v) # 
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gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> PerCompilerFlavor v -> c (PerCompilerFlavor v) #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (PerCompilerFlavor v) #

toConstr :: PerCompilerFlavor v -> Constr #

dataTypeOf :: PerCompilerFlavor v -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (PerCompilerFlavor v)) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (PerCompilerFlavor v)) #

gmapT :: (forall b. Data b => b -> b) -> PerCompilerFlavor v -> PerCompilerFlavor v #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> PerCompilerFlavor v -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> PerCompilerFlavor v -> r #

gmapQ :: (forall d. Data d => d -> u) -> PerCompilerFlavor v -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> PerCompilerFlavor v -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> PerCompilerFlavor v -> m (PerCompilerFlavor v) #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> PerCompilerFlavor v -> m (PerCompilerFlavor v) #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> PerCompilerFlavor v -> m (PerCompilerFlavor v) #

Read v => Read (PerCompilerFlavor v) # 
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Show v => Show (PerCompilerFlavor v) # 
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Generic (PerCompilerFlavor v) # 
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type Rep (PerCompilerFlavor v) :: Type -> Type #

Semigroup a => Semigroup (PerCompilerFlavor a) # 
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(Semigroup a, Monoid a) => Monoid (PerCompilerFlavor a) # 
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Binary a => Binary (PerCompilerFlavor a) # 
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NFData a => NFData (PerCompilerFlavor a) # 
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rnf :: PerCompilerFlavor a -> () #

type Rep (PerCompilerFlavor v) # 
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type Rep (PerCompilerFlavor v) = D1 (MetaData "PerCompilerFlavor" "Distribution.Compiler" "Cabal-3.0.0.0-CD1INMNwoxXIKVgcu1nec5" False) (C1 (MetaCons "PerCompilerFlavor" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 v) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 v)))

data CompilerFlavor #

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Eq CompilerFlavor # 
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Data CompilerFlavor # 
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gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> CompilerFlavor -> c CompilerFlavor #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c CompilerFlavor #

toConstr :: CompilerFlavor -> Constr #

dataTypeOf :: CompilerFlavor -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c CompilerFlavor) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c CompilerFlavor) #

gmapT :: (forall b. Data b => b -> b) -> CompilerFlavor -> CompilerFlavor #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> CompilerFlavor -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> CompilerFlavor -> r #

gmapQ :: (forall d. Data d => d -> u) -> CompilerFlavor -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> CompilerFlavor -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> CompilerFlavor -> m CompilerFlavor #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> CompilerFlavor -> m CompilerFlavor #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> CompilerFlavor -> m CompilerFlavor #

Ord CompilerFlavor # 
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Read CompilerFlavor # 
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Show CompilerFlavor # 
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Generic CompilerFlavor # 
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type Rep CompilerFlavor :: Type -> Type #

Binary CompilerFlavor # 
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NFData CompilerFlavor # 
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rnf :: CompilerFlavor -> () #

Pretty CompilerFlavor # 
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Parsec CompilerFlavor # 
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Newtype (CompilerFlavor, VersionRange) TestedWith # 
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type Rep CompilerFlavor # 
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type Rep CompilerFlavor = D1 (MetaData "CompilerFlavor" "Distribution.Compiler" "Cabal-3.0.0.0-CD1INMNwoxXIKVgcu1nec5" False) (((C1 (MetaCons "GHC" PrefixI False) (U1 :: Type -> Type) :+: (C1 (MetaCons "GHCJS" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "NHC" PrefixI False) (U1 :: Type -> Type))) :+: (C1 (MetaCons "YHC" PrefixI False) (U1 :: Type -> Type) :+: (C1 (MetaCons "Hugs" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "HBC" PrefixI False) (U1 :: Type -> Type)))) :+: ((C1 (MetaCons "Helium" PrefixI False) (U1 :: Type -> Type) :+: (C1 (MetaCons "JHC" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "LHC" PrefixI False) (U1 :: Type -> Type))) :+: ((C1 (MetaCons "UHC" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "Eta" PrefixI False) (U1 :: Type -> Type)) :+: (C1 (MetaCons "HaskellSuite" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 String)) :+: C1 (MetaCons "OtherCompiler" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 String))))))

defaultCompilerFlavor :: Maybe CompilerFlavor #

The default compiler flavour to pick when compiling stuff. This defaults to the compiler used to build the Cabal lib.

However if it's not a recognised compiler then it's Nothing and the user will have to specify which compiler they want.

unknownCompilerInfo :: CompilerId -> AbiTag -> CompilerInfo #

Make a CompilerInfo of which only the known information is its CompilerId, its AbiTag and that it does not claim to be compatible with other compiler id's.

data ProfDetailLevel #

Some compilers (notably GHC) support profiling and can instrument programs so the system can account costs to different functions. There are different levels of detail that can be used for this accounting. For compilers that do not support this notion or the particular detail levels, this is either ignored or just capped to some similar level they do support.

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Eq ProfDetailLevel # 
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Read ProfDetailLevel # 
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Show ProfDetailLevel # 
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Generic ProfDetailLevel # 
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type Rep ProfDetailLevel :: Type -> Type #

Binary ProfDetailLevel # 
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type Rep ProfDetailLevel # 
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type Rep ProfDetailLevel = D1 (MetaData "ProfDetailLevel" "Distribution.Simple.Compiler" "Cabal-3.0.0.0-CD1INMNwoxXIKVgcu1nec5" False) ((C1 (MetaCons "ProfDetailNone" PrefixI False) (U1 :: Type -> Type) :+: (C1 (MetaCons "ProfDetailDefault" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "ProfDetailExportedFunctions" PrefixI False) (U1 :: Type -> Type))) :+: (C1 (MetaCons "ProfDetailToplevelFunctions" PrefixI False) (U1 :: Type -> Type) :+: (C1 (MetaCons "ProfDetailAllFunctions" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "ProfDetailOther" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 String)))))

data DebugInfoLevel #

Some compilers support emitting debug info. Some have different levels. For compilers that do not the level is just capped to the level they do support.

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Bounded DebugInfoLevel # 
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Enum DebugInfoLevel # 
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Eq DebugInfoLevel # 
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Read DebugInfoLevel # 
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Show DebugInfoLevel # 
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Generic DebugInfoLevel # 
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type Rep DebugInfoLevel :: Type -> Type #

Binary DebugInfoLevel # 
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type Rep DebugInfoLevel # 
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type Rep DebugInfoLevel = D1 (MetaData "DebugInfoLevel" "Distribution.Simple.Compiler" "Cabal-3.0.0.0-CD1INMNwoxXIKVgcu1nec5" False) ((C1 (MetaCons "NoDebugInfo" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "MinimalDebugInfo" PrefixI False) (U1 :: Type -> Type)) :+: (C1 (MetaCons "NormalDebugInfo" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "MaximalDebugInfo" PrefixI False) (U1 :: Type -> Type)))

data OptimisationLevel #

Some compilers support optimising. Some have different levels. For compilers that do not the level is just capped to the level they do support.

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Bounded OptimisationLevel # 
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Enum OptimisationLevel # 
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Eq OptimisationLevel # 
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Read OptimisationLevel # 
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Show OptimisationLevel # 
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Generic OptimisationLevel # 
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type Rep OptimisationLevel :: Type -> Type #

Binary OptimisationLevel # 
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type Rep OptimisationLevel # 
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type Rep OptimisationLevel = D1 (MetaData "OptimisationLevel" "Distribution.Simple.Compiler" "Cabal-3.0.0.0-CD1INMNwoxXIKVgcu1nec5" False) (C1 (MetaCons "NoOptimisation" PrefixI False) (U1 :: Type -> Type) :+: (C1 (MetaCons "NormalOptimisation" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "MaximumOptimisation" PrefixI False) (U1 :: Type -> Type)))

type PackageDBStack = [PackageDB] #

We typically get packages from several databases, and stack them together. This type lets us be explicit about that stacking. For example typical stacks include:

[GlobalPackageDB]
[GlobalPackageDB, UserPackageDB]
[GlobalPackageDB, SpecificPackageDB "package.conf.inplace"]

Note that the GlobalPackageDB is invariably at the bottom since it contains the rts, base and other special compiler-specific packages.

We are not restricted to using just the above combinations. In particular we can use several custom package dbs and the user package db together.

When it comes to writing, the top most (last) package is used.

data PackageDB #

Some compilers have a notion of a database of available packages. For some there is just one global db of packages, other compilers support a per-user or an arbitrary db specified at some location in the file system. This can be used to build isloated environments of packages, for example to build a collection of related packages without installing them globally.

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Eq PackageDB # 
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Ord PackageDB # 
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Read PackageDB # 
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Generic PackageDB # 
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type Rep PackageDB :: Type -> Type #

Binary PackageDB # 
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type Rep PackageDB # 
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type Rep PackageDB = D1 (MetaData "PackageDB" "Distribution.Simple.Compiler" "Cabal-3.0.0.0-CD1INMNwoxXIKVgcu1nec5" False) (C1 (MetaCons "GlobalPackageDB" PrefixI False) (U1 :: Type -> Type) :+: (C1 (MetaCons "UserPackageDB" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "SpecificPackageDB" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 FilePath))))

data Compiler #

Constructors

Compiler 

Fields

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Eq Compiler # 
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Read Compiler # 
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Show Compiler # 
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Generic Compiler # 
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type Rep Compiler :: Type -> Type #

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from :: Compiler -> Rep Compiler x #

to :: Rep Compiler x -> Compiler #

Binary Compiler # 
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put :: Compiler -> Put #

get :: Get Compiler #

putList :: [Compiler] -> Put #

type Rep Compiler # 
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compilerCompatFlavor :: CompilerFlavor -> Compiler -> Bool #

Is this compiler compatible with the compiler flavour we're interested in?

For example this checks if the compiler is actually GHC or is another compiler that claims to be compatible with some version of GHC, e.g. GHCJS.

if compilerCompatFlavor GHC compiler then ... else ...

compilerCompatVersion :: CompilerFlavor -> Compiler -> Maybe Version #

Is this compiler compatible with the compiler flavour we're interested in, and if so what version does it claim to be compatible with.

For example this checks if the compiler is actually GHC-7.x or is another compiler that claims to be compatible with some GHC-7.x version.

case compilerCompatVersion GHC compiler of
  Just (Version (7:_)) -> ...
  _                    -> ...

registrationPackageDB :: PackageDBStack -> PackageDB #

Return the package that we should register into. This is the package db at the top of the stack.

unsupportedExtensions :: Compiler -> [Extension] -> [Extension] #

For the given compiler, return the extensions it does not support.

extensionsToFlags :: Compiler -> [Extension] -> [Flag] #

For the given compiler, return the flags for the supported extensions.

parmakeSupported :: Compiler -> Bool #

Does this compiler support parallel --make mode?

reexportedModulesSupported :: Compiler -> Bool #

Does this compiler support reexported-modules?

renamingPackageFlagsSupported :: Compiler -> Bool #

Does this compiler support thinning/renaming on package flags?

unifiedIPIDRequired :: Compiler -> Bool #

Does this compiler have unified IPIDs (so no package keys)

packageKeySupported :: Compiler -> Bool #

Does this compiler support package keys?

unitIdSupported :: Compiler -> Bool #

Does this compiler support unit IDs?

backpackSupported :: Compiler -> Bool #

Does this compiler support Backpack?

libraryDynDirSupported :: Compiler -> Bool #

Does this compiler support a package database entry with: "dynamic-library-dirs"?

arResponseFilesSupported :: Compiler -> Bool #

Does this compiler's "ar" command supports response file arguments (i.e. @file-style arguments).

coverageSupported :: Compiler -> Bool #

Does this compiler support Haskell program coverage?

profilingSupported :: Compiler -> Bool #

Does this compiler support profiling?

Simple interface

defaultMain :: IO () #

A simple implementation of main for a Cabal setup script. It reads the package description file using IO, and performs the action specified on the command line.

defaultMainNoRead :: GenericPackageDescription -> IO () #

Like defaultMain, but accepts the package description as input rather than using IO to read it.

defaultMainArgs :: [String] -> IO () #

A version of defaultMain that is passed the command line arguments, rather than getting them from the environment.

Customization

data UserHooks #

Hooks allow authors to add specific functionality before and after a command is run, and also to specify additional preprocessors.

  • WARNING: The hooks interface is under rather constant flux as we try to understand users needs. Setup files that depend on this interface may break in future releases.

Constructors

UserHooks 

Fields

type Args = [String] #

defaultMainWithHooks :: UserHooks -> IO () #

A customizable version of defaultMain.

defaultMainWithHooksArgs :: UserHooks -> [String] -> IO () #

A customizable version of defaultMain that also takes the command line arguments.

defaultMainWithHooksNoReadArgs :: UserHooks -> GenericPackageDescription -> [String] -> IO () #

A customizable version of defaultMainNoRead that also takes the command line arguments.

Since: 2.2.0.0

Standard sets of hooks

simpleUserHooks :: UserHooks #

Hooks that correspond to a plain instantiation of the "simple" build system

autoconfUserHooks :: UserHooks #

Basic autoconf UserHooks:

Thus configure can use local system information to generate package.buildinfo and possibly other files.

emptyUserHooks :: UserHooks #

Empty UserHooks which do nothing.