Portability	portable
Maintainer	cabal-devel@haskell.org
Safe Haskell	None

Distribution.Simple.LocalBuildInfo

Contents

Buildable package components
Installation directories

Description

Once a package has been configured we have resolved conditionals and dependencies, configured the compiler and other needed external programs. The LocalBuildInfo is used to hold all this information. It holds the install dirs, the compiler, the exact package dependencies, the configured programs, the package database to use and a bunch of miscellaneous configure flags. It gets saved and reloaded from a file (dist/setup-config). It gets passed in to very many subsequent build actions.

Synopsis

Documentation

data LocalBuildInfo

Data cached after configuration step. See also ConfigFlags.

Constructors

LocalBuildInfo

Fields

configFlags :: ConfigFlags: Options passed to the configuration step. Needed to re-run configuration when .cabal is out of date
flagAssignment :: FlagAssignment: The final set of flags which were picked for this package
extraConfigArgs :: [String]: Extra args on the command line for the configuration step. Needed to re-run configuration when .cabal is out of date
installDirTemplates :: InstallDirTemplates: The installation directories for the various different kinds of files TODO: inplaceDirTemplates :: InstallDirs FilePath
compiler :: Compiler: The compiler we're building with
hostPlatform :: Platform: The platform we're building for
buildDir :: FilePath: Where to build the package.
componentsConfigs :: [(ComponentName, ComponentLocalBuildInfo, [ComponentName])]: All the components to build, ordered by topological sort, and with their dependencies over the intrapackage dependency graph
installedPkgs :: InstalledPackageIndex: All the info about the installed packages that the current package depends on (directly or indirectly).
pkgDescrFile :: Maybe FilePath: the filename containing the .cabal file, if available
localPkgDescr :: PackageDescription: The resolved package description, that does not contain any conditionals.
withPrograms :: ProgramConfiguration: Location and args for all programs
withPackageDB :: PackageDBStack: What package database to use, global/user
withVanillaLib :: Bool: Whether to build normal libs.
withProfLib :: Bool: Whether to build profiling versions of libs.
withSharedLib :: Bool: Whether to build shared versions of libs.
withDynExe :: Bool: Whether to link executables dynamically
withProfExe :: Bool: Whether to build executables for profiling.
withProfLibDetail :: ProfDetailLevel: Level of automatic profile detail.
withProfExeDetail :: ProfDetailLevel: Level of automatic profile detail.
withOptimization :: OptimisationLevel: Whether to build with optimization (if available).
withDebugInfo :: DebugInfoLevel: Whether to emit debug info (if available).
withGHCiLib :: Bool: Whether to build libs suitable for use with GHCi.
splitObjs :: Bool: Use -split-objs with GHC, if available
stripExes :: Bool: Whether to strip executables during install
stripLibs :: Bool: Whether to strip libraries during install
progPrefix :: PathTemplate: Prefix to be prepended to installed executables
progSuffix :: PathTemplate: Suffix to be appended to installed executables
relocatable :: Bool

Instances

Read LocalBuildInfo
Show LocalBuildInfo
Generic LocalBuildInfo
Binary LocalBuildInfo

externalPackageDeps :: LocalBuildInfo -> [(UnitId, PackageId)]

External package dependencies for the package as a whole. This is the union of the individual componentPackageDeps, less any internal deps.

localComponentId :: LocalBuildInfo -> ComponentId

Extract the ComponentId from the library component of a LocalBuildInfo if it exists, or make a fake component ID based on the package ID.

localUnitId :: LocalBuildInfo -> UnitId

Extract the UnitId from the library component of a LocalBuildInfo if it exists, or make a fake unit ID based on the package ID.

localCompatPackageKey :: LocalBuildInfo -> String

Extract the compatibility ComponentId from the library component of a LocalBuildInfo if it exists, or make a fake compatibility package key based on the package ID.

Buildable package components

data Component

Constructors

CLib Library
CExe Executable
CTest TestSuite
CBench Benchmark

Instances

Eq Component
Read Component
Show Component

data ComponentName

Constructors

CLibName
CExeName String
CTestName String
CBenchName String

Instances

Eq ComponentName
Ord ComponentName
Read ComponentName
Show ComponentName
Generic ComponentName
Binary ComponentName

showComponentName :: ComponentName -> String

data ComponentLocalBuildInfo

Constructors

LibComponentLocalBuildInfo
Fields componentPackageDeps :: [(UnitId, PackageId)] Resolved internal and external package dependencies for this component. The `BuildInfo` specifies a set of build dependencies that must be satisfied in terms of version ranges. This field fixes those dependencies to the specific versions available on this machine for this compiler. componentUnitId :: UnitId componentCompatPackageKey :: String componentExposedModules :: [ExposedModule] componentPackageRenaming :: Map PackageName ModuleRenaming
ExeComponentLocalBuildInfo
Fields componentPackageDeps :: [(UnitId, PackageId)] Resolved internal and external package dependencies for this component. The `BuildInfo` specifies a set of build dependencies that must be satisfied in terms of version ranges. This field fixes those dependencies to the specific versions available on this machine for this compiler. componentPackageRenaming :: Map PackageName ModuleRenaming
TestComponentLocalBuildInfo
Fields componentPackageDeps :: [(UnitId, PackageId)] Resolved internal and external package dependencies for this component. The `BuildInfo` specifies a set of build dependencies that must be satisfied in terms of version ranges. This field fixes those dependencies to the specific versions available on this machine for this compiler. componentPackageRenaming :: Map PackageName ModuleRenaming
BenchComponentLocalBuildInfo
Fields componentPackageDeps :: [(UnitId, PackageId)] Resolved internal and external package dependencies for this component. The `BuildInfo` specifies a set of build dependencies that must be satisfied in terms of version ranges. This field fixes those dependencies to the specific versions available on this machine for this compiler. componentPackageRenaming :: Map PackageName ModuleRenaming

Instances

Read ComponentLocalBuildInfo
Show ComponentLocalBuildInfo
Generic ComponentLocalBuildInfo
Binary ComponentLocalBuildInfo

foldComponent :: (Library -> a) -> (Executable -> a) -> (TestSuite -> a) -> (Benchmark -> a) -> Component -> a

componentName :: Component -> ComponentName

componentBuildInfo :: Component -> BuildInfo

componentEnabled :: Component -> Bool

componentDisabledReason :: Component -> Maybe ComponentDisabledReason

data ComponentDisabledReason

Constructors

DisabledComponent
DisabledAllTests
DisabledAllBenchmarks

pkgComponents :: PackageDescription -> [Component]

All the components in the package (libs, exes, or test suites).

pkgEnabledComponents :: PackageDescription -> [Component]

All the components in the package that are buildable and enabled. Thus this excludes non-buildable components and test suites or benchmarks that have been disabled.

lookupComponent :: PackageDescription -> ComponentName -> Maybe Component

getComponent :: PackageDescription -> ComponentName -> Component

getComponentLocalBuildInfo :: LocalBuildInfo -> ComponentName -> ComponentLocalBuildInfo

allComponentsInBuildOrder :: LocalBuildInfo -> [(ComponentName, ComponentLocalBuildInfo)]

componentsInBuildOrder :: LocalBuildInfo -> [ComponentName] -> [(ComponentName, ComponentLocalBuildInfo)]

checkComponentsCyclic :: Ord key => [(node, key, [key])] -> Maybe [(node, key, [key])]

depLibraryPaths

Arguments

:: Bool	Building for inplace?
-> Bool	Generate prefix-relative library paths
-> LocalBuildInfo
-> ComponentLocalBuildInfo	Component that is being built
-> IO [FilePath]

Determine the directories containing the dynamic libraries of the transitive dependencies of the component we are building.

When wanted, and possible, returns paths relative to the installDirs prefix

withAllComponentsInBuildOrder :: PackageDescription -> LocalBuildInfo -> (Component -> ComponentLocalBuildInfo -> IO ()) -> IO ()

Perform the action on each buildable Library or Executable (Component) in the PackageDescription, subject to the build order specified by the compBuildOrder field of the given LocalBuildInfo

withComponentsInBuildOrder :: PackageDescription -> LocalBuildInfo -> [ComponentName] -> (Component -> ComponentLocalBuildInfo -> IO ()) -> IO ()

withComponentsLBI :: PackageDescription -> LocalBuildInfo -> (Component -> ComponentLocalBuildInfo -> IO ()) -> IO ()

Deprecated: Use withAllComponentsInBuildOrder

withLibLBI :: PackageDescription -> LocalBuildInfo -> (Library -> ComponentLocalBuildInfo -> IO ()) -> IO ()

If the package description has a library section, call the given function with the library build info as argument. Extended version of withLib that also gives corresponding build info.

withExeLBI :: PackageDescription -> LocalBuildInfo -> (Executable -> ComponentLocalBuildInfo -> IO ()) -> IO ()

Perform the action on each buildable Executable in the package description. Extended version of withExe that also gives corresponding build info.

withTestLBI :: PackageDescription -> LocalBuildInfo -> (TestSuite -> ComponentLocalBuildInfo -> IO ()) -> IO ()

Installation directories

module Distribution.Simple.InstallDirs

absoluteInstallDirs :: PackageDescription -> LocalBuildInfo -> CopyDest -> InstallDirs FilePath

See absoluteInstallDirs

prefixRelativeInstallDirs :: PackageId -> LocalBuildInfo -> InstallDirs (Maybe FilePath)

See prefixRelativeInstallDirs

substPathTemplate :: PackageId -> LocalBuildInfo -> PathTemplate -> FilePath