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Make servant buildable with cabal new-build
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**/*/dist | ||
dist-newstyle | ||
/bin | ||
/lib | ||
/share | ||
|
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packages: | ||
servant/ | ||
servant-client/ | ||
servant-docs/ | ||
servant-foreign/ | ||
servant-server/ | ||
doc/tutorial/ |
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\begin{code} | ||
{-# LANGUAGE CPP #-} | ||
#ifndef MIN_VERSION_Cabal | ||
#define MIN_VERSION_Cabal(x,y,z) 0 | ||
#endif | ||
#ifndef MIN_VERSION_directory | ||
#define MIN_VERSION_directory(x,y,z) 0 | ||
#endif | ||
#if MIN_VERSION_Cabal(1,24,0) | ||
#define InstalledPackageId UnitId | ||
#endif | ||
module Main (main) where | ||
import Control.Monad ( when ) | ||
import Data.List ( nub ) | ||
import Distribution.Package ( InstalledPackageId ) | ||
import Distribution.Package ( PackageId, Package (..), packageVersion ) | ||
import Distribution.PackageDescription ( PackageDescription(), TestSuite(..) , Library (..), BuildInfo (..)) | ||
import Distribution.Simple ( defaultMainWithHooks, UserHooks(..), simpleUserHooks ) | ||
import Distribution.Simple.Utils ( rewriteFile, createDirectoryIfMissingVerbose ) | ||
import Distribution.Simple.BuildPaths ( autogenModulesDir ) | ||
import Distribution.Simple.Setup ( BuildFlags(buildDistPref, buildVerbosity), fromFlag) | ||
import Distribution.Simple.LocalBuildInfo ( withPackageDB, withLibLBI, withTestLBI, LocalBuildInfo(), ComponentLocalBuildInfo(componentPackageDeps), compiler ) | ||
import Distribution.Simple.Compiler ( showCompilerId , PackageDB (..)) | ||
import Distribution.Text ( display , simpleParse ) | ||
import System.FilePath ( (</>) ) | ||
#if MIN_VERSION_Cabal(1,25,0) | ||
import Distribution.Simple.BuildPaths ( autogenComponentModulesDir ) | ||
#endif | ||
#if MIN_VERSION_directory(1,2,2) | ||
import System.Directory (makeAbsolute) | ||
#else | ||
import System.Directory (getCurrentDirectory) | ||
import System.FilePath (isAbsolute) | ||
makeAbsolute :: FilePath -> IO FilePath | ||
makeAbsolute p | isAbsolute p = return p | ||
| otherwise = do | ||
cwd <- getCurrentDirectory | ||
return $ cwd </> p | ||
#endif | ||
main :: IO () | ||
main = defaultMainWithHooks simpleUserHooks | ||
{ buildHook = \pkg lbi hooks flags -> do | ||
generateBuildModule flags pkg lbi | ||
buildHook simpleUserHooks pkg lbi hooks flags | ||
} | ||
generateBuildModule :: BuildFlags -> PackageDescription -> LocalBuildInfo -> IO () | ||
generateBuildModule flags pkg lbi = do | ||
let verbosity = fromFlag (buildVerbosity flags) | ||
let distPref = fromFlag (buildDistPref flags) | ||
-- Package DBs | ||
let dbStack = withPackageDB lbi ++ [ SpecificPackageDB $ distPref </> "package.conf.inplace" ] | ||
let dbFlags = "-hide-all-packages" : packageDbArgs dbStack | ||
withLibLBI pkg lbi $ \lib libcfg -> do | ||
let libBI = libBuildInfo lib | ||
-- modules | ||
let modules = exposedModules lib ++ otherModules libBI | ||
-- it seems that doctest is happy to take in module names, not actual files! | ||
let module_sources = modules | ||
-- We need the directory with library's cabal_macros.h! | ||
#if MIN_VERSION_Cabal(1,25,0) | ||
let libAutogenDir = autogenComponentModulesDir lbi libcfg | ||
#else | ||
let libAutogenDir = autogenModulesDir lbi | ||
#endif | ||
-- Lib sources and includes | ||
iArgs <- mapM (fmap ("-i"++) . makeAbsolute) $ libAutogenDir : hsSourceDirs libBI | ||
includeArgs <- mapM (fmap ("-I"++) . makeAbsolute) $ includeDirs libBI | ||
-- CPP includes, i.e. include cabal_macros.h | ||
let cppFlags = map ("-optP"++) $ | ||
[ "-include", libAutogenDir ++ "/cabal_macros.h" ] | ||
++ cppOptions libBI | ||
-- Actually we need to check whether testName suite == "doctests" | ||
-- pending https://github.com/haskell/cabal/pull/4229 getting into GHC HEAD tree | ||
withTestLBI pkg lbi $ \suite suitecfg -> when (testName suite == "doctests") $ do | ||
-- get and create autogen dir | ||
#if MIN_VERSION_Cabal(1,25,0) | ||
let testAutogenDir = autogenComponentModulesDir lbi suitecfg | ||
#else | ||
let testAutogenDir = autogenModulesDir lbi | ||
#endif | ||
createDirectoryIfMissingVerbose verbosity True testAutogenDir | ||
-- write autogen'd file | ||
rewriteFile (testAutogenDir </> "Build_doctests.hs") $ unlines | ||
[ "module Build_doctests where" | ||
, "" | ||
-- -package-id etc. flags | ||
, "pkgs :: [String]" | ||
, "pkgs = " ++ (show $ formatDeps $ testDeps libcfg suitecfg) | ||
, "" | ||
, "flags :: [String]" | ||
, "flags = " ++ show (iArgs ++ includeArgs ++ dbFlags ++ cppFlags) | ||
, "" | ||
, "module_sources :: [String]" | ||
, "module_sources = " ++ show (map display module_sources) | ||
] | ||
where | ||
-- we do this check in Setup, as then doctests don't need to depend on Cabal | ||
isOldCompiler = maybe False id $ do | ||
a <- simpleParse $ showCompilerId $ compiler lbi | ||
b <- simpleParse "7.5" | ||
return $ packageVersion (a :: PackageId) < b | ||
formatDeps = map formatOne | ||
formatOne (installedPkgId, pkgId) | ||
-- The problem is how different cabal executables handle package databases | ||
-- when doctests depend on the library | ||
| packageId pkg == pkgId = "-package=" ++ display pkgId | ||
| otherwise = "-package-id=" ++ display installedPkgId | ||
-- From Distribution.Simple.Program.GHC | ||
packageDbArgs :: [PackageDB] -> [String] | ||
packageDbArgs | isOldCompiler = packageDbArgsConf | ||
| otherwise = packageDbArgsDb | ||
-- GHC <7.6 uses '-package-conf' instead of '-package-db'. | ||
packageDbArgsConf :: [PackageDB] -> [String] | ||
packageDbArgsConf dbstack = case dbstack of | ||
(GlobalPackageDB:UserPackageDB:dbs) -> concatMap specific dbs | ||
(GlobalPackageDB:dbs) -> ("-no-user-package-conf") | ||
: concatMap specific dbs | ||
_ -> ierror | ||
where | ||
specific (SpecificPackageDB db) = [ "-package-conf=" ++ db ] | ||
specific _ = ierror | ||
ierror = error $ "internal error: unexpected package db stack: " | ||
++ show dbstack | ||
-- GHC >= 7.6 uses the '-package-db' flag. See | ||
-- https://ghc.haskell.org/trac/ghc/ticket/5977. | ||
packageDbArgsDb :: [PackageDB] -> [String] | ||
-- special cases to make arguments prettier in common scenarios | ||
packageDbArgsDb dbstack = case dbstack of | ||
(GlobalPackageDB:UserPackageDB:dbs) | ||
| all isSpecific dbs -> concatMap single dbs | ||
(GlobalPackageDB:dbs) | ||
| all isSpecific dbs -> "-no-user-package-db" | ||
: concatMap single dbs | ||
dbs -> "-clear-package-db" | ||
: concatMap single dbs | ||
where | ||
single (SpecificPackageDB db) = [ "-package-db=" ++ db ] | ||
single GlobalPackageDB = [ "-global-package-db" ] | ||
single UserPackageDB = [ "-user-package-db" ] | ||
isSpecific (SpecificPackageDB _) = True | ||
isSpecific _ = False | ||
testDeps :: ComponentLocalBuildInfo -> ComponentLocalBuildInfo -> [(InstalledPackageId, PackageId)] | ||
testDeps xs ys = nub $ componentPackageDeps xs ++ componentPackageDeps ys | ||
\end{code} |
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{-# LANGUAGE CPP #-} | ||
{-# LANGUAGE ForeignFunctionInterface #-} | ||
----------------------------------------------------------------------------- | ||
-- | | ||
-- Module : Main (doctests) | ||
-- Copyright : (C) 2012-14 Edward Kmett | ||
-- License : BSD-style (see the file LICENSE) | ||
-- Maintainer : Edward Kmett <ekmett@gmail.com> | ||
-- Stability : provisional | ||
-- Portability : portable | ||
-- | ||
-- This module provides doctests for a project based on the actual versions | ||
-- of the packages it was built with. It requires a corresponding Setup.lhs | ||
-- to be added to the project | ||
----------------------------------------------------------------------------- | ||
module Main where | ||
|
||
import Build_doctests (flags, pkgs, module_sources) | ||
import Data.Foldable (traverse_) | ||
import Test.DocTest | ||
|
||
##if defined(mingw32_HOST_OS) | ||
##if defined(i386_HOST_ARCH) | ||
##define USE_CP | ||
import Control.Applicative | ||
import Control.Exception | ||
import Foreign.C.Types | ||
foreign import stdcall "windows.h SetConsoleCP" c_SetConsoleCP :: CUInt -> IO Bool | ||
foreign import stdcall "windows.h GetConsoleCP" c_GetConsoleCP :: IO CUInt | ||
##elif defined(x86_64_HOST_ARCH) | ||
##define USE_CP | ||
import Control.Applicative | ||
import Control.Exception | ||
import Foreign.C.Types | ||
foreign import ccall "windows.h SetConsoleCP" c_SetConsoleCP :: CUInt -> IO Bool | ||
foreign import ccall "windows.h GetConsoleCP" c_GetConsoleCP :: IO CUInt | ||
##endif | ||
##endif | ||
|
||
-- | Run in a modified codepage where we can print UTF-8 values on Windows. | ||
withUnicode :: IO a -> IO a | ||
##ifdef USE_CP | ||
withUnicode m = do | ||
cp <- c_GetConsoleCP | ||
(c_SetConsoleCP 65001 >> m) `finally` c_SetConsoleCP cp | ||
##else | ||
withUnicode m = m | ||
##endif | ||
|
||
main :: IO () | ||
main = withUnicode $ do | ||
traverse_ putStrLn args | ||
doctest args | ||
where | ||
args = | ||
"-XOverloadedStrings" : | ||
"-XFlexibleInstances" : | ||
"-XMultiParamTypeClasses" : | ||
"-XDataKinds" : | ||
"-XTypeOperators" : | ||
flags ++ pkgs ++ module_sources |
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