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Distribution.Simple.Configure

Portability | portable
Maintainer | cabal-devel@haskell.org

Description

This deals with the configure phase. It provides the `configure` action which is given the package description and configure flags. It then tries to: configure the compiler; resolves any conditionals in the package description; resolve the package dependencies; check if all the extensions used by this package are supported by the compiler; check that all the build tools are available (including version checks if appropriate); checks for any required `pkg-config` packages (updating the `BuildInfo` with the results)

Then based on all this it saves the info in the `LocalBuildInfo` and writes it out to the `dist/setup-config` file. It also displays various details to the user, the amount of information displayed depending on the verbosity level.

Synopsis

configure :: (Either GenericPackageDescription PackageDescription, HookedBuildInfo) -> ConfigFlags -> IO LocalBuildInfo
writePersistBuildConfig :: FilePath -> LocalBuildInfo -> IO ()
getPersistBuildConfig :: FilePath -> IO LocalBuildInfo
checkPersistBuildConfig :: FilePath -> FilePath -> IO ()
maybeGetPersistBuildConfig :: FilePath -> IO (Maybe LocalBuildInfo)
localBuildInfoFile :: FilePath -> FilePath
getInstalledPackages :: Verbosity -> Compiler -> PackageDB -> ProgramConfiguration -> IO (Maybe (PackageIndex InstalledPackageInfo))
configDependency :: Verbosity -> PackageIndex InstalledPackageInfo -> Dependency -> IO PackageIdentifier
configCompiler :: Maybe CompilerFlavor -> Maybe FilePath -> Maybe FilePath -> ProgramConfiguration -> Verbosity -> IO (Compiler, ProgramConfiguration)
configCompilerAux :: ConfigFlags -> IO (Compiler, ProgramConfiguration)
ccLdOptionsBuildInfo :: [String] -> [String] -> BuildInfo
tryGetConfigStateFile :: Read a => FilePath -> IO (Either String a)
checkForeignDeps :: PackageDescription -> LocalBuildInfo -> Verbosity -> IO ()

Documentation

configure :: (Either GenericPackageDescription PackageDescription, HookedBuildInfo) -> ConfigFlags -> IO LocalBuildInfo | Source

Perform the "`./setup configure`" action. Returns the `.setup-config` file.

writePersistBuildConfig :: FilePath -> LocalBuildInfo -> IO () | Source

After running configure, output the `LocalBuildInfo` to the `localBuildInfoFile`.

getPersistBuildConfig :: FilePath -> IO LocalBuildInfo | Source

Read the `localBuildInfoFile`. Error if it doesn't exist. Also fail if the file containing LocalBuildInfo is older than the .cabal file, indicating that a re-configure is required.

checkPersistBuildConfig :: FilePath -> FilePath -> IO () | Source

Check that localBuildInfoFile is up-to-date with respect to the .cabal file.

maybeGetPersistBuildConfig :: FilePath -> IO (Maybe LocalBuildInfo) | Source

Try to read the `localBuildInfoFile`.

localBuildInfoFile :: FilePath -> FilePath | Source

    dist/setup-config

getInstalledPackages :: Verbosity -> Compiler -> PackageDB -> ProgramConfiguration -> IO (Maybe (PackageIndex InstalledPackageInfo)) | Source

configDependency :: Verbosity -> PackageIndex InstalledPackageInfo -> Dependency -> IO PackageIdentifier | Source

Test for a package dependency and record the version we have installed.

configCompiler :: Maybe CompilerFlavor -> Maybe FilePath -> Maybe FilePath -> ProgramConfiguration -> Verbosity -> IO (Compiler, ProgramConfiguration) | Source

configCompilerAux :: ConfigFlags -> IO (Compiler, ProgramConfiguration) | Source

ccLdOptionsBuildInfo :: [String] -> [String] -> BuildInfo | Source

Makes a `BuildInfo` from C compiler and linker flags.

This can be used with the output from configuration programs like pkg-config and similar package-specific programs like mysql-config, freealut-config etc. For example:

     ccflags <- rawSystemProgramStdoutConf verbosity prog conf ["--cflags"]
     ldflags <- rawSystemProgramStdoutConf verbosity prog conf ["--libs"]
     return (ccldOptionsBuildInfo (words ccflags) (words ldflags))

tryGetConfigStateFile :: Read a => FilePath -> IO (Either String a) | Source

checkForeignDeps :: PackageDescription -> LocalBuildInfo -> Verbosity -> IO () | Source

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