{-# LANGUAGE BangPatterns #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TupleSections #-}
module HIE.Bios.Cradle (
      findCradle
    , loadCradle
    , loadImplicitCradle
    , yamlConfig
    , defaultCradle
    , isCabalCradle
    , isStackCradle
    , isDirectCradle
    , isBiosCradle
    , isNoneCradle
    , isMultiCradle
    , isDefaultCradle
    , isOtherCradle
    , getCradle
    , readProcessWithOutputs
    , readProcessWithCwd
    , makeCradleResult
  ) where

import Control.Applicative ((<|>), optional)
import Data.Bifunctor (first)
import Control.DeepSeq
import Control.Exception (handleJust)
import qualified Data.Yaml as Yaml
import Data.Void
import Data.Char (isSpace)
import System.Exit
import System.Directory hiding (findFile)
import Colog.Core (LogAction (..), WithSeverity (..), Severity (..), (<&))
import Control.Monad
import Control.Monad.Extra (unlessM)
import Control.Monad.Trans.Cont
import Control.Monad.Trans.Maybe
import Control.Monad.IO.Class
import Data.Conduit.Process
import qualified Data.Conduit.Combinators as C
import qualified Data.Conduit as C
import qualified Data.Conduit.Text as C
import qualified Data.HashMap.Strict as Map
import Data.Maybe (fromMaybe, maybeToList)
import Data.List
import Data.List.Extra (trimEnd)
import Data.Ord (Down(..))
import qualified Data.Text as T
import System.Environment
import System.FilePath
import System.PosixCompat.Files
import System.Info.Extra (isWindows)
import System.IO (hClose, hGetContents, hSetBuffering, BufferMode(LineBuffering), withFile, IOMode(..))
import System.IO.Error (isPermissionError)
import System.IO.Temp

import HIE.Bios.Config
import HIE.Bios.Environment (getCacheDir)
import HIE.Bios.Types hiding (ActionName(..))
import HIE.Bios.Wrappers
import qualified HIE.Bios.Types as Types
import qualified HIE.Bios.Ghc.Gap as Gap

import GHC.Fingerprint (fingerprintString)
import GHC.ResponseFile (escapeArgs)

----------------------------------------------------------------
-- Environment variables used by hie-bios.
--
-- If you need more, add a constant here.
----------------------------------------------------------------

-- | Environment variable containing the filepath to which
-- cradle actions write their results to.
-- If the filepath does not exist, cradle actions must create them.
hie_bios_output :: String
hie_bios_output :: String
hie_bios_output = String
"HIE_BIOS_OUTPUT"

-- | Environment variable pointing to the GHC location used by
-- cabal's and stack's GHC wrapper.
--
-- If not set, will default to sensible defaults.
hie_bios_ghc :: String
hie_bios_ghc :: String
hie_bios_ghc = String
"HIE_BIOS_GHC"

-- | Environment variable with extra arguments passed to the GHC location
-- in cabal's and stack's GHC wrapper.
--
-- If not set, assume no extra arguments.
hie_bios_ghc_args :: String
hie_bios_ghc_args :: String
hie_bios_ghc_args = String
"HIE_BIOS_GHC_ARGS"

-- | Environment variable pointing to the source file location that caused
-- the cradle action to be executed.
hie_bios_arg :: String
hie_bios_arg :: String
hie_bios_arg = String
"HIE_BIOS_ARG"

-- | Environment variable pointing to a filepath to which dependencies
-- of a cradle can be written to by the cradle action.
hie_bios_deps :: String
hie_bios_deps :: String
hie_bios_deps = String
"HIE_BIOS_DEPS"

----------------------------------------------------------------

-- | Given root\/foo\/bar.hs, return root\/hie.yaml, or wherever the yaml file was found.
findCradle :: FilePath -> IO (Maybe FilePath)
findCradle :: String -> IO (Maybe String)
findCradle String
wfile = do
    let wdir :: String
wdir = String -> String
takeDirectory String
wfile
    forall (m :: * -> *) a. MaybeT m a -> m (Maybe a)
runMaybeT (String -> MaybeT IO String
yamlConfig String
wdir)

-- | Given root\/hie.yaml load the Cradle.
loadCradle :: FilePath -> IO (Cradle Void)
loadCradle :: String -> IO (Cradle Void)
loadCradle = forall b a.
FromJSON b =>
(b -> Cradle a) -> String -> IO (Cradle a)
loadCradleWithOpts forall a. Void -> a
absurd

-- | Given root\/foo\/bar.hs, load an implicit cradle
loadImplicitCradle :: Show a => FilePath -> IO (Cradle a)
loadImplicitCradle :: forall a. Show a => String -> IO (Cradle a)
loadImplicitCradle String
wfile = do
  let wdir :: String
wdir = String -> String
takeDirectory String
wfile
  Maybe (CradleConfig Void, String)
cfg <- forall (m :: * -> *) a. MaybeT m a -> m (Maybe a)
runMaybeT (forall a. String -> MaybeT IO (CradleConfig a, String)
implicitConfig String
wdir)
  forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ case Maybe (CradleConfig Void, String)
cfg of
    Just (CradleConfig Void, String)
bc -> forall b a. (b -> Cradle a) -> (CradleConfig b, String) -> Cradle a
getCradle forall a. Void -> a
absurd (CradleConfig Void, String)
bc
    Maybe (CradleConfig Void, String)
Nothing -> forall a. String -> Cradle a
defaultCradle String
wdir

-- | Finding 'Cradle'.
--   Find a cabal file by tracing ancestor directories.
--   Find a sandbox according to a cabal sandbox config
--   in a cabal directory.
loadCradleWithOpts :: (Yaml.FromJSON b) => (b -> Cradle a) -> FilePath -> IO (Cradle a)
loadCradleWithOpts :: forall b a.
FromJSON b =>
(b -> Cradle a) -> String -> IO (Cradle a)
loadCradleWithOpts b -> Cradle a
buildCustomCradle String
wfile = do
    CradleConfig b
cradleConfig <- forall b. FromJSON b => String -> IO (CradleConfig b)
readCradleConfig String
wfile
    forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall b a. (b -> Cradle a) -> (CradleConfig b, String) -> Cradle a
getCradle b -> Cradle a
buildCustomCradle (CradleConfig b
cradleConfig, String -> String
takeDirectory String
wfile)

getCradle :: (b -> Cradle a) -> (CradleConfig b, FilePath) -> Cradle a
getCradle :: forall b a. (b -> Cradle a) -> (CradleConfig b, String) -> Cradle a
getCradle b -> Cradle a
buildCustomCradle (CradleConfig b
cc, String
wdir) = forall a. [String] -> Cradle a -> Cradle a
addCradleDeps [String]
cradleDeps forall a b. (a -> b) -> a -> b
$ case forall a. CradleConfig a -> CradleType a
cradleType CradleConfig b
cc of
    Cabal CabalType{ cabalComponent :: CabalType -> Maybe String
cabalComponent = Maybe String
mc } -> forall a. String -> Maybe String -> Cradle a
cabalCradle String
wdir Maybe String
mc
    CabalMulti CabalType
dc [(String, CabalType)]
ms ->
      forall b a. (b -> Cradle a) -> (CradleConfig b, String) -> Cradle a
getCradle b -> Cradle a
buildCustomCradle
        (forall a. [String] -> CradleType a -> CradleConfig a
CradleConfig [String]
cradleDeps
          (forall a. [(String, CradleConfig a)] -> CradleType a
Multi [(String
p, forall a. [String] -> CradleType a -> CradleConfig a
CradleConfig [] (forall a. CabalType -> CradleType a
Cabal forall a b. (a -> b) -> a -> b
$ CabalType
dc forall a. Semigroup a => a -> a -> a
<> CabalType
c)) | (String
p, CabalType
c) <- [(String, CabalType)]
ms])
        , String
wdir)
    Stack StackType{ stackComponent :: StackType -> Maybe String
stackComponent = Maybe String
mc, stackYaml :: StackType -> Maybe String
stackYaml = Maybe String
syaml} ->
      let
        stackYamlConfig :: StackYaml
stackYamlConfig = String -> Maybe String -> StackYaml
stackYamlFromMaybe String
wdir Maybe String
syaml
      in
        forall a. String -> Maybe String -> StackYaml -> Cradle a
stackCradle String
wdir Maybe String
mc StackYaml
stackYamlConfig
    StackMulti StackType
ds [(String, StackType)]
ms ->
      forall b a. (b -> Cradle a) -> (CradleConfig b, String) -> Cradle a
getCradle b -> Cradle a
buildCustomCradle
        (forall a. [String] -> CradleType a -> CradleConfig a
CradleConfig [String]
cradleDeps
          (forall a. [(String, CradleConfig a)] -> CradleType a
Multi [(String
p, forall a. [String] -> CradleType a -> CradleConfig a
CradleConfig [] (forall a. StackType -> CradleType a
Stack forall a b. (a -> b) -> a -> b
$ StackType
ds forall a. Semigroup a => a -> a -> a
<> StackType
c)) | (String
p, StackType
c) <- [(String, StackType)]
ms])
        , String
wdir)
 --   Bazel -> rulesHaskellCradle wdir
 --   Obelisk -> obeliskCradle wdir
    Bios Callable
bios Maybe Callable
deps Maybe String
mbGhc -> forall a.
String -> Callable -> Maybe Callable -> Maybe String -> Cradle a
biosCradle String
wdir Callable
bios Maybe Callable
deps Maybe String
mbGhc
    Direct [String]
xs -> forall a. String -> [String] -> Cradle a
directCradle String
wdir [String]
xs
    CradleType b
None      -> forall a. String -> Cradle a
noneCradle String
wdir
    Multi [(String, CradleConfig b)]
ms  -> forall b a.
(b -> Cradle a) -> String -> [(String, CradleConfig b)] -> Cradle a
multiCradle b -> Cradle a
buildCustomCradle String
wdir [(String, CradleConfig b)]
ms
    Other b
a Value
_ -> b -> Cradle a
buildCustomCradle b
a
    where
      cradleDeps :: [String]
cradleDeps = forall a. CradleConfig a -> [String]
cradleDependencies CradleConfig b
cc

addCradleDeps :: [FilePath] -> Cradle a -> Cradle a
addCradleDeps :: forall a. [String] -> Cradle a -> Cradle a
addCradleDeps [String]
deps Cradle a
c =
  Cradle a
c { cradleOptsProg :: CradleAction a
cradleOptsProg = forall a. CradleAction a -> CradleAction a
addActionDeps (forall a. Cradle a -> CradleAction a
cradleOptsProg Cradle a
c) }
  where
    addActionDeps :: CradleAction a -> CradleAction a
    addActionDeps :: forall a. CradleAction a -> CradleAction a
addActionDeps CradleAction a
ca =
      CradleAction a
ca { runCradle :: LogAction IO (WithSeverity Log)
-> String -> IO (CradleLoadResult ComponentOptions)
runCradle = \LogAction IO (WithSeverity Log)
l String
fp ->
            (forall c r.
c -> (CradleError -> c) -> (r -> c) -> CradleLoadResult r -> c
cradleLoadResult
                forall r. CradleLoadResult r
CradleNone
                (\CradleError
err -> forall r. CradleError -> CradleLoadResult r
CradleFail (CradleError
err { cradleErrorDependencies :: [String]
cradleErrorDependencies = CradleError -> [String]
cradleErrorDependencies CradleError
err forall a. Eq a => [a] -> [a] -> [a]
`union` [String]
deps }))
                (\(ComponentOptions [String]
os' String
dir [String]
ds) -> forall r. r -> CradleLoadResult r
CradleSuccess ([String] -> String -> [String] -> ComponentOptions
ComponentOptions [String]
os' String
dir ([String]
ds forall a. Eq a => [a] -> [a] -> [a]
`union` [String]
deps)))
            )
            forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall a.
CradleAction a
-> LogAction IO (WithSeverity Log)
-> String
-> IO (CradleLoadResult ComponentOptions)
runCradle CradleAction a
ca LogAction IO (WithSeverity Log)
l String
fp
         }

-- | Try to infer an appropriate implicit cradle type from stuff we can find in the enclosing directories:
--   * If a .hie-bios file is found, we can treat this as a @Bios@ cradle
--   * If a stack.yaml file is found, we can treat this as a @Stack@ cradle
--   * If a cabal.project or an xyz.cabal file is found, we can treat this as a @Cabal@ cradle
inferCradleType :: FilePath -> MaybeT IO (CradleType a, FilePath)
inferCradleType :: forall a. String -> MaybeT IO (CradleType a, String)
inferCradleType String
fp =
       forall {a}. MaybeT IO (CradleType a, String)
maybeItsBios
   forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
<|> forall {a}. MaybeT IO (CradleType a, String)
maybeItsStack
   forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
<|> forall {a}. MaybeT IO (CradleType a, String)
maybeItsCabal
-- <|> maybeItsObelisk
-- <|> maybeItsObelisk

  where
  maybeItsBios :: MaybeT IO (CradleType a, String)
maybeItsBios = (\String
wdir -> (forall a.
Callable -> Maybe Callable -> Maybe String -> CradleType a
Bios (String -> Callable
Program forall a b. (a -> b) -> a -> b
$ String
wdir String -> String -> String
</> String
".hie-bios") forall a. Maybe a
Nothing forall a. Maybe a
Nothing, String
wdir)) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> String -> MaybeT IO String
biosWorkDir String
fp

  maybeItsStack :: MaybeT IO (CradleType a, String)
maybeItsStack = MaybeT IO String
stackExecutable forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> (forall a. StackType -> CradleType a
Stack forall a b. (a -> b) -> a -> b
$ Maybe String -> Maybe String -> StackType
StackType forall a. Maybe a
Nothing forall a. Maybe a
Nothing,) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> String -> MaybeT IO String
stackWorkDir String
fp

  maybeItsCabal :: MaybeT IO (CradleType a, String)
maybeItsCabal = (forall a. CabalType -> CradleType a
Cabal forall a b. (a -> b) -> a -> b
$ Maybe String -> CabalType
CabalType forall a. Maybe a
Nothing,) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> String -> MaybeT IO String
cabalWorkDir String
fp

  -- maybeItsObelisk = (Obelisk,) <$> obeliskWorkDir fp

  -- maybeItsBazel = (Bazel,) <$> rulesHaskellWorkDir fp


-- | Wraps up the cradle inferred by @inferCradleType@ as a @CradleConfig@ with no dependencies
implicitConfig :: FilePath -> MaybeT IO (CradleConfig a, FilePath)
implicitConfig :: forall a. String -> MaybeT IO (CradleConfig a, String)
implicitConfig = (forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall (p :: * -> * -> *) a b c.
Bifunctor p =>
(a -> b) -> p a c -> p b c
first) (forall a. [String] -> CradleType a -> CradleConfig a
CradleConfig [String]
noDeps) forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a. String -> MaybeT IO (CradleType a, String)
inferCradleType
  where
  noDeps :: [FilePath]
  noDeps :: [String]
noDeps = []

yamlConfig :: FilePath ->  MaybeT IO FilePath
yamlConfig :: String -> MaybeT IO String
yamlConfig String
fp = do
  String
configDir <- String -> MaybeT IO String
yamlConfigDirectory String
fp
  forall (m :: * -> *) a. Monad m => a -> m a
return (String
configDir String -> String -> String
</> String
configFileName)

yamlConfigDirectory :: FilePath -> MaybeT IO FilePath
yamlConfigDirectory :: String -> MaybeT IO String
yamlConfigDirectory = (String -> Bool) -> String -> MaybeT IO String
findFileUpwards (String
configFileName forall a. Eq a => a -> a -> Bool
==)

readCradleConfig :: Yaml.FromJSON b => FilePath -> IO (CradleConfig b)
readCradleConfig :: forall b. FromJSON b => String -> IO (CradleConfig b)
readCradleConfig String
yamlHie = do
  Config b
cfg  <- forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO forall a b. (a -> b) -> a -> b
$ forall a. FromJSON a => String -> IO (Config a)
readConfig String
yamlHie
  forall (m :: * -> *) a. Monad m => a -> m a
return (forall a. Config a -> CradleConfig a
cradle Config b
cfg)

configFileName :: FilePath
configFileName :: String
configFileName = String
"hie.yaml"

-- | Pass '-dynamic' flag when GHC is built with dynamic linking.
--
-- Append flag to options of 'defaultCradle' and 'directCradle' if GHC is dynmically linked,
-- because unlike the case of using build tools, which means '-dynamic' can be set via
-- '.cabal' or 'package.yaml', users have to create an explicit hie.yaml to pass this flag.
argDynamic :: [String]
argDynamic :: [String]
argDynamic = [String
"-dynamic" | Bool
Gap.hostIsDynamic ]

---------------------------------------------------------------

isCabalCradle :: Cradle a -> Bool
isCabalCradle :: forall a. Cradle a -> Bool
isCabalCradle Cradle a
crdl = case forall a. CradleAction a -> ActionName a
actionName (forall a. Cradle a -> CradleAction a
cradleOptsProg Cradle a
crdl) of
  ActionName a
Types.Cabal -> Bool
True
  ActionName a
_ -> Bool
False

isStackCradle :: Cradle a -> Bool
isStackCradle :: forall a. Cradle a -> Bool
isStackCradle Cradle a
crdl = case forall a. CradleAction a -> ActionName a
actionName (forall a. Cradle a -> CradleAction a
cradleOptsProg Cradle a
crdl) of
  ActionName a
Types.Stack -> Bool
True
  ActionName a
_ -> Bool
False

isDirectCradle :: Cradle a -> Bool
isDirectCradle :: forall a. Cradle a -> Bool
isDirectCradle Cradle a
crdl = case forall a. CradleAction a -> ActionName a
actionName (forall a. Cradle a -> CradleAction a
cradleOptsProg Cradle a
crdl) of
  ActionName a
Types.Direct -> Bool
True
  ActionName a
_ -> Bool
False

isBiosCradle :: Cradle a -> Bool
isBiosCradle :: forall a. Cradle a -> Bool
isBiosCradle Cradle a
crdl = case forall a. CradleAction a -> ActionName a
actionName (forall a. Cradle a -> CradleAction a
cradleOptsProg Cradle a
crdl) of
  ActionName a
Types.Bios -> Bool
True
  ActionName a
_ -> Bool
False

isMultiCradle :: Cradle a -> Bool
isMultiCradle :: forall a. Cradle a -> Bool
isMultiCradle Cradle a
crdl = case forall a. CradleAction a -> ActionName a
actionName (forall a. Cradle a -> CradleAction a
cradleOptsProg Cradle a
crdl) of
  ActionName a
Types.Multi -> Bool
True
  ActionName a
_ -> Bool
False

isNoneCradle :: Cradle a -> Bool
isNoneCradle :: forall a. Cradle a -> Bool
isNoneCradle Cradle a
crdl = case forall a. CradleAction a -> ActionName a
actionName (forall a. Cradle a -> CradleAction a
cradleOptsProg Cradle a
crdl) of
  ActionName a
Types.None -> Bool
True
  ActionName a
_ -> Bool
False

isDefaultCradle :: Cradle a -> Bool
isDefaultCradle :: forall a. Cradle a -> Bool
isDefaultCradle Cradle a
crdl = case forall a. CradleAction a -> ActionName a
actionName (forall a. Cradle a -> CradleAction a
cradleOptsProg Cradle a
crdl) of
  ActionName a
Types.Default -> Bool
True
  ActionName a
_ -> Bool
False

isOtherCradle :: Cradle a -> Bool
isOtherCradle :: forall a. Cradle a -> Bool
isOtherCradle Cradle a
crdl = case forall a. CradleAction a -> ActionName a
actionName (forall a. Cradle a -> CradleAction a
cradleOptsProg Cradle a
crdl) of
  Types.Other a
_ -> Bool
True
  ActionName a
_ -> Bool
False

---------------------------------------------------------------

-- | Default cradle has no special options, not very useful for loading
-- modules.
defaultCradle :: FilePath -> Cradle a
defaultCradle :: forall a. String -> Cradle a
defaultCradle String
cur_dir =
  Cradle
    { cradleRootDir :: String
cradleRootDir = String
cur_dir
    , cradleOptsProg :: CradleAction a
cradleOptsProg = CradleAction
        { actionName :: ActionName a
actionName = forall a. ActionName a
Types.Default
        , runCradle :: LogAction IO (WithSeverity Log)
-> String -> IO (CradleLoadResult ComponentOptions)
runCradle = \LogAction IO (WithSeverity Log)
_ String
_ ->
            forall (m :: * -> *) a. Monad m => a -> m a
return (forall r. r -> CradleLoadResult r
CradleSuccess ([String] -> String -> [String] -> ComponentOptions
ComponentOptions [String]
argDynamic String
cur_dir []))
        , runGhcCmd :: LogAction IO (WithSeverity Log)
-> [String] -> IO (CradleLoadResult String)
runGhcCmd = \LogAction IO (WithSeverity Log)
l -> LogAction IO (WithSeverity Log)
-> String -> [String] -> IO (CradleLoadResult String)
runGhcCmdOnPath LogAction IO (WithSeverity Log)
l String
cur_dir
        }
    }

---------------------------------------------------------------
-- | The none cradle tells us not to even attempt to load a certain directory

noneCradle :: FilePath -> Cradle a
noneCradle :: forall a. String -> Cradle a
noneCradle String
cur_dir =
  Cradle
    { cradleRootDir :: String
cradleRootDir = String
cur_dir
    , cradleOptsProg :: CradleAction a
cradleOptsProg = CradleAction
        { actionName :: ActionName a
actionName = forall a. ActionName a
Types.None
        , runCradle :: LogAction IO (WithSeverity Log)
-> String -> IO (CradleLoadResult ComponentOptions)
runCradle = \LogAction IO (WithSeverity Log)
_ String
_ -> forall (m :: * -> *) a. Monad m => a -> m a
return forall r. CradleLoadResult r
CradleNone
        , runGhcCmd :: LogAction IO (WithSeverity Log)
-> [String] -> IO (CradleLoadResult String)
runGhcCmd = \LogAction IO (WithSeverity Log)
_ [String]
_ -> forall (m :: * -> *) a. Monad m => a -> m a
return forall r. CradleLoadResult r
CradleNone
        }
    }

---------------------------------------------------------------
-- | The multi cradle selects a cradle based on the filepath

multiCradle :: (b -> Cradle a) -> FilePath -> [(FilePath, CradleConfig b)] -> Cradle a
multiCradle :: forall b a.
(b -> Cradle a) -> String -> [(String, CradleConfig b)] -> Cradle a
multiCradle b -> Cradle a
buildCustomCradle String
cur_dir [(String, CradleConfig b)]
cs =
  Cradle
    { cradleRootDir :: String
cradleRootDir  = String
cur_dir
    , cradleOptsProg :: CradleAction a
cradleOptsProg = CradleAction
        { actionName :: ActionName a
actionName = forall a. ActionName a
multiActionName
        , runCradle :: LogAction IO (WithSeverity Log)
-> String -> IO (CradleLoadResult ComponentOptions)
runCradle  = \LogAction IO (WithSeverity Log)
l String
fp -> String -> IO String
makeAbsolute String
fp forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall b a.
(b -> Cradle a)
-> String
-> [(String, CradleConfig b)]
-> LogAction IO (WithSeverity Log)
-> String
-> IO (CradleLoadResult ComponentOptions)
multiAction b -> Cradle a
buildCustomCradle String
cur_dir [(String, CradleConfig b)]
cs LogAction IO (WithSeverity Log)
l
        , runGhcCmd :: LogAction IO (WithSeverity Log)
-> [String] -> IO (CradleLoadResult String)
runGhcCmd = \LogAction IO (WithSeverity Log)
l [String]
args ->
            -- We're being lazy here and just returning the ghc path for the
            -- first non-none cradle. This shouldn't matter in practice: all
            -- sub cradles should be using the same ghc version!
            case forall a. (a -> Bool) -> [a] -> [a]
filter (Bool -> Bool
not forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall {a}. CradleConfig a -> Bool
isNoneCradleConfig) forall a b. (a -> b) -> a -> b
$ forall a b. (a -> b) -> [a] -> [b]
map forall a b. (a, b) -> b
snd [(String, CradleConfig b)]
cs of
              [] -> forall (m :: * -> *) a. Monad m => a -> m a
return forall r. CradleLoadResult r
CradleNone
              (CradleConfig b
cfg:[CradleConfig b]
_) ->
                forall a.
CradleAction a
-> LogAction IO (WithSeverity Log)
-> [String]
-> IO (CradleLoadResult String)
runGhcCmd
                  (forall a. Cradle a -> CradleAction a
cradleOptsProg forall a b. (a -> b) -> a -> b
$ forall b a. (b -> Cradle a) -> (CradleConfig b, String) -> Cradle a
getCradle b -> Cradle a
buildCustomCradle (CradleConfig b
cfg, String
cur_dir))
                  LogAction IO (WithSeverity Log)
l
                  [String]
args
        }
    }
  where
    cfgs :: [CradleConfig b]
cfgs = forall a b. (a -> b) -> [a] -> [b]
map forall a b. (a, b) -> b
snd [(String, CradleConfig b)]
cs

    multiActionName :: ActionName a
multiActionName
      | forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Bool
all (\CradleConfig b
c -> forall {a}. CradleConfig a -> Bool
isStackCradleConfig CradleConfig b
c Bool -> Bool -> Bool
|| forall {a}. CradleConfig a -> Bool
isNoneCradleConfig CradleConfig b
c) [CradleConfig b]
cfgs
      = forall a. ActionName a
Types.Stack
      | forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Bool
all (\CradleConfig b
c -> forall {a}. CradleConfig a -> Bool
isCabalCradleConfig CradleConfig b
c Bool -> Bool -> Bool
|| forall {a}. CradleConfig a -> Bool
isNoneCradleConfig CradleConfig b
c) [CradleConfig b]
cfgs
      = forall a. ActionName a
Types.Cabal
      | Bool
otherwise
      = forall a. ActionName a
Types.Multi

    isStackCradleConfig :: CradleConfig a -> Bool
isStackCradleConfig CradleConfig a
cfg = case forall a. CradleConfig a -> CradleType a
cradleType CradleConfig a
cfg of
      Stack{}      -> Bool
True
      StackMulti{} -> Bool
True
      CradleType a
_            -> Bool
False

    isCabalCradleConfig :: CradleConfig a -> Bool
isCabalCradleConfig CradleConfig a
cfg = case forall a. CradleConfig a -> CradleType a
cradleType CradleConfig a
cfg of
      Cabal{}      -> Bool
True
      CabalMulti{} -> Bool
True
      CradleType a
_            -> Bool
False

    isNoneCradleConfig :: CradleConfig a -> Bool
isNoneCradleConfig CradleConfig a
cfg = case forall a. CradleConfig a -> CradleType a
cradleType CradleConfig a
cfg of
      CradleType a
None -> Bool
True
      CradleType a
_    -> Bool
False

multiAction
  ::  forall b a
  . (b -> Cradle a)
  -> FilePath
  -> [(FilePath, CradleConfig b)]
  -> LogAction IO (WithSeverity Log)
  -> FilePath
  -> IO (CradleLoadResult ComponentOptions)
multiAction :: forall b a.
(b -> Cradle a)
-> String
-> [(String, CradleConfig b)]
-> LogAction IO (WithSeverity Log)
-> String
-> IO (CradleLoadResult ComponentOptions)
multiAction b -> Cradle a
buildCustomCradle String
cur_dir [(String, CradleConfig b)]
cs LogAction IO (WithSeverity Log)
l String
cur_fp =
    [(String, CradleConfig b)]
-> IO (CradleLoadResult ComponentOptions)
selectCradle forall (m :: * -> *) a b. Monad m => (a -> m b) -> m a -> m b
=<< IO [(String, CradleConfig b)]
canonicalizeCradles

  where
    err_msg :: [String]
err_msg = [String
"Multi Cradle: No prefixes matched"
              , String
"pwd: " forall a. [a] -> [a] -> [a]
++ String
cur_dir
              , String
"filepath: " forall a. [a] -> [a] -> [a]
++ String
cur_fp
              , String
"prefixes:"
              ] forall a. [a] -> [a] -> [a]
++ [forall a. Show a => a -> String
show (String
pf, forall a. CradleConfig a -> CradleType a
cradleType CradleConfig b
cc) | (String
pf, CradleConfig b
cc) <- [(String, CradleConfig b)]
cs]

    -- Canonicalize the relative paths present in the multi-cradle and
    -- also order the paths by most specific first. In the cradle selection
    -- function we want to choose the most specific cradle possible.
    canonicalizeCradles :: IO [(FilePath, CradleConfig b)]
    canonicalizeCradles :: IO [(String, CradleConfig b)]
canonicalizeCradles =
      forall b a. Ord b => (a -> b) -> [a] -> [a]
sortOn (forall a. a -> Down a
Down forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a b. (a, b) -> a
fst)
        forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM (\(String
p, CradleConfig b
c) -> (,CradleConfig b
c) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> String -> IO String
makeAbsolute (String
cur_dir String -> String -> String
</> String
p)) [(String, CradleConfig b)]
cs

    selectCradle :: [(String, CradleConfig b)]
-> IO (CradleLoadResult ComponentOptions)
selectCradle [] =
      forall (m :: * -> *) a. Monad m => a -> m a
return (forall r. CradleError -> CradleLoadResult r
CradleFail ([String] -> ExitCode -> [String] -> CradleError
CradleError [] ExitCode
ExitSuccess [String]
err_msg))
    selectCradle ((String
p, CradleConfig b
c): [(String, CradleConfig b)]
css) =
        if String
p forall a. Eq a => [a] -> [a] -> Bool
`isPrefixOf` String
cur_fp
          then forall a.
CradleAction a
-> LogAction IO (WithSeverity Log)
-> String
-> IO (CradleLoadResult ComponentOptions)
runCradle
                  (forall a. Cradle a -> CradleAction a
cradleOptsProg (forall b a. (b -> Cradle a) -> (CradleConfig b, String) -> Cradle a
getCradle b -> Cradle a
buildCustomCradle (CradleConfig b
c, String
cur_dir)))
                  LogAction IO (WithSeverity Log)
l
                  String
cur_fp
          else [(String, CradleConfig b)]
-> IO (CradleLoadResult ComponentOptions)
selectCradle [(String, CradleConfig b)]
css


-------------------------------------------------------------------------

directCradle :: FilePath -> [String] -> Cradle a
directCradle :: forall a. String -> [String] -> Cradle a
directCradle String
wdir [String]
args =
  Cradle
    { cradleRootDir :: String
cradleRootDir = String
wdir
    , cradleOptsProg :: CradleAction a
cradleOptsProg = CradleAction
        { actionName :: ActionName a
actionName = forall a. ActionName a
Types.Direct
        , runCradle :: LogAction IO (WithSeverity Log)
-> String -> IO (CradleLoadResult ComponentOptions)
runCradle = \LogAction IO (WithSeverity Log)
_ String
_ ->
            forall (m :: * -> *) a. Monad m => a -> m a
return (forall r. r -> CradleLoadResult r
CradleSuccess ([String] -> String -> [String] -> ComponentOptions
ComponentOptions ([String]
args forall a. [a] -> [a] -> [a]
++ [String]
argDynamic) String
wdir []))
        , runGhcCmd :: LogAction IO (WithSeverity Log)
-> [String] -> IO (CradleLoadResult String)
runGhcCmd = \LogAction IO (WithSeverity Log)
l -> LogAction IO (WithSeverity Log)
-> String -> [String] -> IO (CradleLoadResult String)
runGhcCmdOnPath LogAction IO (WithSeverity Log)
l String
wdir
        }
    }

-------------------------------------------------------------------------


-- | Find a cradle by finding an executable `hie-bios` file which will
-- be executed to find the correct GHC options to use.
biosCradle :: FilePath -> Callable -> Maybe Callable -> Maybe FilePath -> Cradle a
biosCradle :: forall a.
String -> Callable -> Maybe Callable -> Maybe String -> Cradle a
biosCradle String
wdir Callable
biosCall Maybe Callable
biosDepsCall Maybe String
mbGhc =
  Cradle
    { cradleRootDir :: String
cradleRootDir    = String
wdir
    , cradleOptsProg :: CradleAction a
cradleOptsProg   = CradleAction
        { actionName :: ActionName a
actionName = forall a. ActionName a
Types.Bios
        , runCradle :: LogAction IO (WithSeverity Log)
-> String -> IO (CradleLoadResult ComponentOptions)
runCradle = String
-> Callable
-> Maybe Callable
-> LogAction IO (WithSeverity Log)
-> String
-> IO (CradleLoadResult ComponentOptions)
biosAction String
wdir Callable
biosCall Maybe Callable
biosDepsCall
        , runGhcCmd :: LogAction IO (WithSeverity Log)
-> [String] -> IO (CradleLoadResult String)
runGhcCmd = \LogAction IO (WithSeverity Log)
l [String]
args -> LogAction IO (WithSeverity Log)
-> String
-> String
-> [String]
-> String
-> IO (CradleLoadResult String)
readProcessWithCwd LogAction IO (WithSeverity Log)
l String
wdir (forall a. a -> Maybe a -> a
fromMaybe String
"ghc" Maybe String
mbGhc) [String]
args String
""
        }
    }

biosWorkDir :: FilePath -> MaybeT IO FilePath
biosWorkDir :: String -> MaybeT IO String
biosWorkDir = (String -> Bool) -> String -> MaybeT IO String
findFileUpwards (String
".hie-bios" forall a. Eq a => a -> a -> Bool
==)

biosDepsAction :: LogAction IO (WithSeverity Log) -> FilePath -> Maybe Callable -> FilePath -> IO [FilePath]
biosDepsAction :: LogAction IO (WithSeverity Log)
-> String -> Maybe Callable -> String -> IO [String]
biosDepsAction LogAction IO (WithSeverity Log)
l String
wdir (Just Callable
biosDepsCall) String
fp = do
  CreateProcess
biosDeps' <- Callable -> Maybe String -> IO CreateProcess
callableToProcess Callable
biosDepsCall (forall a. a -> Maybe a
Just String
fp)
  (ExitCode
ex, [String]
sout, [String]
serr, [(String
_, Maybe [String]
args)]) <- [String]
-> LogAction IO (WithSeverity Log)
-> String
-> CreateProcess
-> IO (ExitCode, [String], [String], [(String, Maybe [String])])
readProcessWithOutputs [String
hie_bios_output] LogAction IO (WithSeverity Log)
l String
wdir CreateProcess
biosDeps'
  case ExitCode
ex of
    ExitFailure Int
_ ->  forall a. HasCallStack => String -> a
error forall a b. (a -> b) -> a -> b
$ forall a. Show a => a -> String
show (ExitCode
ex, [String]
sout, [String]
serr)
    ExitCode
ExitSuccess -> forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a. a -> Maybe a -> a
fromMaybe [] Maybe [String]
args
biosDepsAction LogAction IO (WithSeverity Log)
_ String
_ Maybe Callable
Nothing String
_ = forall (m :: * -> *) a. Monad m => a -> m a
return []

biosAction
  :: FilePath
  -> Callable
  -> Maybe Callable
  -> LogAction IO (WithSeverity Log)
  -> FilePath
  -> IO (CradleLoadResult ComponentOptions)
biosAction :: String
-> Callable
-> Maybe Callable
-> LogAction IO (WithSeverity Log)
-> String
-> IO (CradleLoadResult ComponentOptions)
biosAction String
wdir Callable
bios Maybe Callable
bios_deps LogAction IO (WithSeverity Log)
l String
fp = do
  CreateProcess
bios' <- Callable -> Maybe String -> IO CreateProcess
callableToProcess Callable
bios (forall a. a -> Maybe a
Just String
fp)
  (ExitCode
ex, [String]
_stdo, [String]
std, [(String
_, Maybe [String]
res),(String
_, Maybe [String]
mb_deps)]) <-
    [String]
-> LogAction IO (WithSeverity Log)
-> String
-> CreateProcess
-> IO (ExitCode, [String], [String], [(String, Maybe [String])])
readProcessWithOutputs [String
hie_bios_output, String
hie_bios_deps] LogAction IO (WithSeverity Log)
l String
wdir CreateProcess
bios'

  [String]
deps <- case Maybe [String]
mb_deps of
    Just [String]
x  -> forall (m :: * -> *) a. Monad m => a -> m a
return [String]
x
    Maybe [String]
Nothing -> LogAction IO (WithSeverity Log)
-> String -> Maybe Callable -> String -> IO [String]
biosDepsAction LogAction IO (WithSeverity Log)
l String
wdir Maybe Callable
bios_deps String
fp
        -- Output from the program should be written to the output file and
        -- delimited by newlines.
        -- Execute the bios action and add dependencies of the cradle.
        -- Removes all duplicates.
  forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ (ExitCode, [String], String, [String])
-> [String] -> CradleLoadResult ComponentOptions
makeCradleResult (ExitCode
ex, [String]
std, String
wdir, forall a. a -> Maybe a -> a
fromMaybe [] Maybe [String]
res) [String]
deps

callableToProcess :: Callable -> Maybe String -> IO CreateProcess
callableToProcess :: Callable -> Maybe String -> IO CreateProcess
callableToProcess (Command String
shellCommand) Maybe String
file = do
  [(String, String)]
old_env <- IO [(String, String)]
getEnvironment
  forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ (String -> CreateProcess
shell String
shellCommand) { env :: Maybe [(String, String)]
env = (forall a. a -> [a] -> [a]
: [(String, String)]
old_env) forall b c a. (b -> c) -> (a -> b) -> a -> c
. (,) String
hie_bios_arg forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Maybe String
file }
callableToProcess (Program String
path) Maybe String
file = do
  String
canon_path <- String -> IO String
canonicalizePath String
path
  forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ String -> [String] -> CreateProcess
proc String
canon_path (forall a. Maybe a -> [a]
maybeToList Maybe String
file)

------------------------------------------------------------------------
-- |Cabal Cradle
-- Works for new-build by invoking `v2-repl`.
cabalCradle :: FilePath -> Maybe String -> Cradle a
cabalCradle :: forall a. String -> Maybe String -> Cradle a
cabalCradle String
wdir Maybe String
mc =
  Cradle
    { cradleRootDir :: String
cradleRootDir    = String
wdir
    , cradleOptsProg :: CradleAction a
cradleOptsProg   = CradleAction
        { actionName :: ActionName a
actionName = forall a. ActionName a
Types.Cabal
        , runCradle :: LogAction IO (WithSeverity Log)
-> String -> IO (CradleLoadResult ComponentOptions)
runCradle = \LogAction IO (WithSeverity Log)
l String
f -> forall (m :: * -> *) a.
CradleLoadResultT m a -> m (CradleLoadResult a)
runCradleResultT forall b c a. (b -> c) -> (a -> b) -> a -> c
. String
-> Maybe String
-> LogAction IO (WithSeverity Log)
-> String
-> CradleLoadResultT IO ComponentOptions
cabalAction String
wdir Maybe String
mc LogAction IO (WithSeverity Log)
l forall a b. (a -> b) -> a -> b
$ String
f
        , runGhcCmd :: LogAction IO (WithSeverity Log)
-> [String] -> IO (CradleLoadResult String)
runGhcCmd = \LogAction IO (WithSeverity Log)
l [String]
args -> forall (m :: * -> *) a.
CradleLoadResultT m a -> m (CradleLoadResult a)
runCradleResultT forall a b. (a -> b) -> a -> b
$ do
            String
buildDir <- forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO forall a b. (a -> b) -> a -> b
$ String -> IO String
cabalBuildDir String
wdir
            -- Workaround for a cabal-install bug on 3.0.0.0:
            -- ./dist-newstyle/tmp/environment.-24811: createDirectory: does not exist (No such file or directory)
            forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO forall a b. (a -> b) -> a -> b
$ Bool -> String -> IO ()
createDirectoryIfMissing Bool
True (String
buildDir String -> String -> String
</> String
"tmp")
            -- Need to pass -v0 otherwise we get "resolving dependencies..."
            CreateProcess
cabalProc <- LogAction IO (WithSeverity Log)
-> String
-> String
-> [String]
-> CradleLoadResultT IO CreateProcess
cabalProcess LogAction IO (WithSeverity Log)
l String
wdir String
"v2-exec" forall a b. (a -> b) -> a -> b
$ [String
"ghc", String
"-v0", String
"--"] forall a. [a] -> [a] -> [a]
++ [String]
args
            CreateProcess -> String -> CradleLoadResultT IO String
readProcessWithCwd' CreateProcess
cabalProc String
""
        }
    }

-- | Execute a cabal process in our custom cache-build directory configured
-- with the custom ghc executable.
-- The created process has its working directory set to the given working directory.
--
-- Invokes the cabal process in the given directory.
-- Finds the appropriate @ghc@ version as a fallback and provides the path
-- to the custom ghc wrapper via 'hie_bios_ghc' environment variable which
-- the custom ghc wrapper may use as a fallback if it can not respond to certain
-- queries, such as ghc version or location of the libdir.
cabalProcess :: LogAction IO (WithSeverity Log) -> FilePath -> String -> [String] -> CradleLoadResultT IO CreateProcess
cabalProcess :: LogAction IO (WithSeverity Log)
-> String
-> String
-> [String]
-> CradleLoadResultT IO CreateProcess
cabalProcess LogAction IO (WithSeverity Log)
l String
workDir String
command [String]
args = do
  (String, String)
ghcDirs <- LogAction IO (WithSeverity Log)
-> String -> CradleLoadResultT IO (String, String)
cabalGhcDirs LogAction IO (WithSeverity Log)
l String
workDir
  [(String, String)]
newEnvironment <- forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO forall a b. (a -> b) -> a -> b
$ (String, String) -> IO [(String, String)]
setupEnvironment (String, String)
ghcDirs
  CreateProcess
cabalProc <- forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO forall a b. (a -> b) -> a -> b
$ (String, String) -> IO CreateProcess
setupCabalCommand (String, String)
ghcDirs
  forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ (CreateProcess
cabalProc
      { env :: Maybe [(String, String)]
env = forall a. a -> Maybe a
Just [(String, String)]
newEnvironment
      , cwd :: Maybe String
cwd = forall a. a -> Maybe a
Just String
workDir
      })
  where
    processEnvironment :: (FilePath, FilePath) -> [(String, String)]
    processEnvironment :: (String, String) -> [(String, String)]
processEnvironment (String
ghcBin, String
libdir) =
      [(String
hie_bios_ghc, String
ghcBin), (String
hie_bios_ghc_args,  String
"-B" forall a. [a] -> [a] -> [a]
++ String
libdir)]

    setupEnvironment :: (FilePath, FilePath) -> IO [(String, String)]
    setupEnvironment :: (String, String) -> IO [(String, String)]
setupEnvironment (String, String)
ghcDirs = do
      [(String, String)]
environment <- IO [(String, String)]
getCleanEnvironment
      forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ (String, String) -> [(String, String)]
processEnvironment (String, String)
ghcDirs forall a. [a] -> [a] -> [a]
++ [(String, String)]
environment

    setupCabalCommand :: (FilePath, FilePath) -> IO CreateProcess
    setupCabalCommand :: (String, String) -> IO CreateProcess
setupCabalCommand (String
ghcBin, String
libdir) = do
      String
wrapper_fp <- LogAction IO (WithSeverity Log) -> GhcProc -> String -> IO String
withGhcWrapperTool LogAction IO (WithSeverity Log)
l (String
"ghc", []) String
workDir
      String
buildDir <- String -> IO String
cabalBuildDir String
workDir
      String
ghcPkgPath <- String -> String -> IO String
withGhcPkgTool String
ghcBin String
libdir
      let extraCabalArgs :: [String]
extraCabalArgs =
            [ String
"--builddir=" forall a. Semigroup a => a -> a -> a
<> String
buildDir
            , String
command
            , String
"--with-compiler", String
wrapper_fp
            , String
"--with-hc-pkg", String
ghcPkgPath
            ]
      LogAction IO (WithSeverity Log)
-> String -> [String] -> IO CreateProcess
loggedProc LogAction IO (WithSeverity Log)
l String
"cabal" ([String]
extraCabalArgs forall a. [a] -> [a] -> [a]
++ [String]
args)

-- | Discovers the location of 'ghc-pkg' given the absolute path to 'ghc'
-- and its '$libdir' (obtainable by running @ghc --print-libdir@).
--
-- @'withGhcPkgTool' ghcPathAbs libdir@ guesses the location by looking at
-- the filename of 'ghcPathAbs' and expects that 'ghc-pkg' is right next to it,
-- which is guaranteed by the ghc build system. Most OS's follow this
-- convention.
--
-- On unix, there is a high-chance that the obtained 'ghc' location is the
-- "unwrapped" executable, e.g. the executable without a shim that specifies
-- the '$libdir' and other important constants.
-- As such, the executable 'ghc-pkg' is similarly without a wrapper shim and
-- is lacking certain constants such as 'global-package-db'. It is, therefore,
-- not suitable to pass in to other consumers, such as 'cabal'.
--
-- Here, we restore the wrapper-shims, if necessary, thus the returned filepath
-- can be passed to 'cabal' without further modifications.
withGhcPkgTool :: FilePath -> FilePath -> IO FilePath
withGhcPkgTool :: String -> String -> IO String
withGhcPkgTool String
ghcPathAbs String
libdir = do
  let ghcName :: String
ghcName = String -> String
takeFileName String
ghcPathAbs
      -- TODO: check for existence
      ghcPkgPath :: String
ghcPkgPath = String -> String
guessGhcPkgFromGhc String
ghcName
  if Bool
isWindows
    then forall (f :: * -> *) a. Applicative f => a -> f a
pure String
ghcPkgPath
    else String -> IO String
withWrapperTool String
ghcPkgPath
  where
    ghcDir :: String
ghcDir = String -> String
takeDirectory String
ghcPathAbs

    guessGhcPkgFromGhc :: String -> String
guessGhcPkgFromGhc String
ghcName =
      let ghcPkgName :: Text
ghcPkgName = Text -> Text -> Text -> Text
T.replace Text
"ghc" Text
"ghc-pkg" (String -> Text
T.pack String
ghcName)
      in String
ghcDir String -> String -> String
</> Text -> String
T.unpack Text
ghcPkgName

    -- Only on unix, creates a wrapper script that's hopefully identical
    -- to the wrapper script 'ghc-pkg' usually comes with.
    --
    -- 'ghc-pkg' needs to know the 'global-package-db' location which is
    -- passed in via a wrapper shim that basically wraps 'ghc-pkg' and
    -- only passes in the correct 'global-package-db'.
    -- For an example on how the wrapper script is supposed to look like, take
    -- a look at @cat $(which ghc-pkg)@, assuming 'ghc-pkg' is on your $PATH.
    --
    -- If we used the raw executable, i.e. not wrapped in a shim, then 'cabal'
    -- can not use the given 'ghc-pkg'.
    withWrapperTool :: String -> IO String
withWrapperTool String
ghcPkg = do
      let globalPackageDb :: String
globalPackageDb = String
libdir String -> String -> String
</> String
"package.conf.d"
          -- This is the same as the wrapper-shims ghc-pkg usually comes with.
          contents :: String
contents = [String] -> String
unlines
            [ String
"#!/bin/sh"
            , [String] -> String
unwords [String
"exec", String -> String
escapeFilePath String
ghcPkg
                      , String
"--global-package-db", String -> String
escapeFilePath String
globalPackageDb
                      , String
"${1+\"$@\"}"
                      ]
            ]
          srcHash :: String
srcHash = forall a. Show a => a -> String
show (String -> Fingerprint
fingerprintString String
contents)
      String -> String -> (String -> IO ()) -> IO String
cacheFile String
"ghc-pkg" String
srcHash forall a b. (a -> b) -> a -> b
$ \String
wrapperFp -> String -> String -> IO ()
writeFile String
wrapperFp String
contents

    -- Escape the filepath and trim excess newlines added by 'escapeArgs'
    escapeFilePath :: String -> String
escapeFilePath String
fp = String -> String
trimEnd forall a b. (a -> b) -> a -> b
$ [String] -> String
escapeArgs [String
fp]

-- | @'cabalCradleDependencies' rootDir componentDir@.
-- Compute the dependencies of the cabal cradle based
-- on the cradle root and the component directory.
--
-- Directory 'componentDir' is a sub-directory where we look for
-- package specific cradle dependencies, such as a '.cabal' file.
--
-- Found dependencies are relative to 'rootDir'.
cabalCradleDependencies :: FilePath -> FilePath -> IO [FilePath]
cabalCradleDependencies :: String -> String -> IO [String]
cabalCradleDependencies String
rootDir String
componentDir = do
    let relFp :: String
relFp = String -> String -> String
makeRelative String
rootDir String
componentDir
    [String]
cabalFiles' <- String -> IO [String]
findCabalFiles String
componentDir
    let cabalFiles :: [String]
cabalFiles = forall a b. (a -> b) -> [a] -> [b]
map (String
relFp String -> String -> String
</>) [String]
cabalFiles'
    forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a b. (a -> b) -> [a] -> [b]
map String -> String
normalise forall a b. (a -> b) -> a -> b
$ [String]
cabalFiles forall a. [a] -> [a] -> [a]
++ [String
"cabal.project", String
"cabal.project.local"]

-- |Find .cabal files in the given directory.
--
-- Might return multiple results, as we can not know in advance
-- which one is important to the user.
findCabalFiles :: FilePath -> IO [FilePath]
findCabalFiles :: String -> IO [String]
findCabalFiles String
wdir = do
  [String]
dirContent <- String -> IO [String]
listDirectory String
wdir
  forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a. (a -> Bool) -> [a] -> [a]
filter ((forall a. Eq a => a -> a -> Bool
== String
".cabal") forall b c a. (b -> c) -> (a -> b) -> a -> c
. String -> String
takeExtension) [String]
dirContent


processCabalWrapperArgs :: [String] -> Maybe (FilePath, [String])
processCabalWrapperArgs :: [String] -> Maybe GhcProc
processCabalWrapperArgs [String]
args =
    case [String]
args of
        (String
dir: [String]
ghc_args) ->
            let final_args :: [String]
final_args =
                    [String] -> [String]
removeVerbosityOpts
                    forall a b. (a -> b) -> a -> b
$ [String] -> [String]
removeRTS
                    forall a b. (a -> b) -> a -> b
$ [String] -> [String]
removeInteractive [String]
ghc_args
            in forall a. a -> Maybe a
Just (String
dir, [String]
final_args)
        [String]
_ -> forall a. Maybe a
Nothing

-- | GHC process information.
-- Consists of the filepath to the ghc executable and
-- arguments to the executable.
type GhcProc = (FilePath, [String])

-- | Generate a fake GHC that can be passed to cabal or stack
-- when run with --interactive, it will print out its
-- command-line arguments and exit
withGhcWrapperTool :: LogAction IO (WithSeverity Log) -> GhcProc -> FilePath -> IO FilePath
withGhcWrapperTool :: LogAction IO (WithSeverity Log) -> GhcProc -> String -> IO String
withGhcWrapperTool LogAction IO (WithSeverity Log)
l (String
mbGhc, [String]
ghcArgs) String
wdir = do
    let wrapperContents :: String
wrapperContents = if Bool
isWindows then String
cabalWrapperHs else String
cabalWrapper
        withExtension :: String -> String
withExtension String
fp = if Bool
isWindows then String
fp String -> String -> String
<.> String
"exe" else String
fp
        srcHash :: String
srcHash = forall a. Show a => a -> String
show (String -> Fingerprint
fingerprintString String
wrapperContents)
    String -> String -> (String -> IO ()) -> IO String
cacheFile (String -> String
withExtension String
"wrapper") String
srcHash forall a b. (a -> b) -> a -> b
$ \String
wrapper_fp ->
      if Bool
isWindows
      then
        forall (m :: * -> *) a.
(MonadIO m, MonadMask m) =>
String -> (String -> m a) -> m a
withSystemTempDirectory String
"hie-bios" forall a b. (a -> b) -> a -> b
$ \ String
tmpDir -> do
          let wrapper_hs :: String
wrapper_hs = String
wrapper_fp String -> String -> String
-<.> String
"hs"
          String -> String -> IO ()
writeFile String
wrapper_hs String
wrapperContents
          CreateProcess
ghc <- LogAction IO (WithSeverity Log)
-> String -> [String] -> IO CreateProcess
loggedProc LogAction IO (WithSeverity Log)
l String
mbGhc forall a b. (a -> b) -> a -> b
$
                      [String]
ghcArgs forall a. [a] -> [a] -> [a]
++ [String
"-rtsopts=ignore", String
"-outputdir", String
tmpDir, String
"-o", String
wrapper_fp, String
wrapper_hs]
          let ghc' :: CreateProcess
ghc' = CreateProcess
ghc { cwd :: Maybe String
cwd = forall a. a -> Maybe a
Just String
wdir }
          CreateProcess -> String -> IO String
readCreateProcess CreateProcess
ghc' String
"" forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= String -> IO ()
putStr
      else String -> String -> IO ()
writeFile String
wrapper_fp String
wrapperContents

-- | Create and cache a file in hie-bios's cache directory.
--
-- @'cacheFile' fpName srcHash populate@. 'fpName' is the pattern name of the
-- cached file you want to create. 'srcHash' is the hash that is appended to
-- the file pattern and is expected to change whenever you want to invalidate
-- the cache.
--
-- If the cached file's 'srcHash' changes, then a new file is created, but
-- the old cached file name will not be deleted.
--
-- If the file does not exist yet, 'populate' is invoked with cached file
-- location and it is expected that the caller persists the given filepath in
-- the File System.
cacheFile :: FilePath -> String -> (FilePath -> IO ()) -> IO FilePath
cacheFile :: String -> String -> (String -> IO ()) -> IO String
cacheFile String
fpName String
srcHash String -> IO ()
populate = do
  String
cacheDir <- String -> IO String
getCacheDir String
""
  Bool -> String -> IO ()
createDirectoryIfMissing Bool
True String
cacheDir
  let newFpName :: String
newFpName = String
cacheDir String -> String -> String
</> (String -> String
dropExtensions String
fpName forall a. Semigroup a => a -> a -> a
<> String
"-" forall a. Semigroup a => a -> a -> a
<> String
srcHash) String -> String -> String
<.> String -> String
takeExtensions String
fpName
  forall (m :: * -> *). Monad m => m Bool -> m () -> m ()
unlessM (String -> IO Bool
doesFileExist String
newFpName) forall a b. (a -> b) -> a -> b
$ do
    String -> IO ()
populate String
newFpName
    String -> IO ()
setMode String
newFpName
  forall (f :: * -> *) a. Applicative f => a -> f a
pure String
newFpName
  where
    setMode :: String -> IO ()
setMode String
wrapper_fp = String -> FileMode -> IO ()
setFileMode String
wrapper_fp FileMode
accessModes

-- | Given the root directory, get the build dir we are using for cabal
-- In the `hie-bios` cache directory
cabalBuildDir :: FilePath -> IO FilePath
cabalBuildDir :: String -> IO String
cabalBuildDir String
workDir = do
  String
abs_work_dir <- String -> IO String
makeAbsolute String
workDir
  let dirHash :: String
dirHash = forall a. Show a => a -> String
show (String -> Fingerprint
fingerprintString String
abs_work_dir)
  String -> IO String
getCacheDir (String
"dist-" forall a. Semigroup a => a -> a -> a
<> forall a. (a -> Bool) -> [a] -> [a]
filter (Bool -> Bool
not forall b c a. (b -> c) -> (a -> b) -> a -> c
. Char -> Bool
isSpace) (String -> String
takeBaseName String
abs_work_dir)forall a. Semigroup a => a -> a -> a
<>String
"-"forall a. Semigroup a => a -> a -> a
<>String
dirHash)

-- | Discover the location of the ghc binary 'cabal' is going to use together
-- with its libdir location.
-- The ghc executable is an absolute path, but not necessarily canonicalised
-- or normalised. Additionally, the ghc path returned is likely to be the raw
-- executable, i.e. without the usual wrapper shims on non-windows systems.
-- If you want to use the given ghc executable, you should invoke
-- 'withGhcWrapperTool'.
--
-- If cabal can not figure it out, a 'CradleError' is returned.
cabalGhcDirs :: LogAction IO (WithSeverity Log) -> FilePath -> CradleLoadResultT IO (FilePath, FilePath)
cabalGhcDirs :: LogAction IO (WithSeverity Log)
-> String -> CradleLoadResultT IO (String, String)
cabalGhcDirs LogAction IO (WithSeverity Log)
l String
workDir = do
  String
libdir <- LogAction IO (WithSeverity Log)
-> String
-> String
-> [String]
-> String
-> CradleLoadResultT IO String
readProcessWithCwd_ LogAction IO (WithSeverity Log)
l String
workDir String
"cabal" [String
"exec", String
"-v0", String
"--", String
"ghc", String
"--print-libdir"] String
""
  String
exe <- LogAction IO (WithSeverity Log)
-> String
-> String
-> [String]
-> String
-> CradleLoadResultT IO String
readProcessWithCwd_ LogAction IO (WithSeverity Log)
l String
workDir String
"cabal"
      -- DON'T TOUCH THIS CODE
      -- This works with 'NoImplicitPrelude', with 'RebindableSyntax' and other shenanigans.
      -- @-package-env=-@ doesn't work with ghc prior 8.4.x
      [ String
"exec", String
"-v0", String
"--" , String
"ghc", String
"-package-env=-", String
"-ignore-dot-ghci", String
"-e"
      , String
"Control.Monad.join (Control.Monad.fmap System.IO.putStr System.Environment.getExecutablePath)"
      ]
      String
""
  forall (f :: * -> *) a. Applicative f => a -> f a
pure (String -> String
trimEnd String
exe, String -> String
trimEnd String
libdir)

cabalAction
  :: FilePath
  -> Maybe String
  -> LogAction IO (WithSeverity Log)
  -> FilePath
  -> CradleLoadResultT IO ComponentOptions
cabalAction :: String
-> Maybe String
-> LogAction IO (WithSeverity Log)
-> String
-> CradleLoadResultT IO ComponentOptions
cabalAction String
workDir Maybe String
mc LogAction IO (WithSeverity Log)
l String
fp = do
  let
    cabalCommand :: String
cabalCommand = String
"v2-repl"
    cabalArgs :: [String]
cabalArgs = [forall a. a -> Maybe a -> a
fromMaybe (String -> String
fixTargetPath String
fp) Maybe String
mc]

  CreateProcess
cabalProc <- LogAction IO (WithSeverity Log)
-> String
-> String
-> [String]
-> CradleLoadResultT IO CreateProcess
cabalProcess LogAction IO (WithSeverity Log)
l String
workDir String
cabalCommand [String]
cabalArgs forall (m :: * -> *) a.
Monad m =>
CradleLoadResultT m a
-> (CradleError -> m CradleError) -> CradleLoadResultT m a
`modCradleError` \CradleError
err -> do
      [String]
deps <- String -> String -> IO [String]
cabalCradleDependencies String
workDir String
workDir
      forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ CradleError
err { cradleErrorDependencies :: [String]
cradleErrorDependencies = CradleError -> [String]
cradleErrorDependencies CradleError
err forall a. [a] -> [a] -> [a]
++ [String]
deps }

  (ExitCode
ex, [String]
output, [String]
stde, [(String
_, Maybe [String]
maybeArgs)]) <- forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO forall a b. (a -> b) -> a -> b
$ [String]
-> LogAction IO (WithSeverity Log)
-> String
-> CreateProcess
-> IO (ExitCode, [String], [String], [(String, Maybe [String])])
readProcessWithOutputs [String
hie_bios_output] LogAction IO (WithSeverity Log)
l String
workDir CreateProcess
cabalProc
  let args :: [String]
args = forall a. a -> Maybe a -> a
fromMaybe [] Maybe [String]
maybeArgs

  let errorDetails :: [String]
errorDetails =
        [String
"Failed command: " forall a. Semigroup a => a -> a -> a
<> CmdSpec -> String
prettyCmdSpec (CreateProcess -> CmdSpec
cmdspec CreateProcess
cabalProc)
        , [String] -> String
unlines [String]
output
        , [String] -> String
unlines [String]
stde
        , [String] -> String
unlines forall a b. (a -> b) -> a -> b
$ [String]
args
        , String
"Process Environment:"]
        forall a. Semigroup a => a -> a -> a
<> CreateProcess -> [String]
prettyProcessEnv CreateProcess
cabalProc

  forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (ExitCode
ex forall a. Eq a => a -> a -> Bool
/= ExitCode
ExitSuccess) forall a b. (a -> b) -> a -> b
$ do
    [String]
deps <- forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO forall a b. (a -> b) -> a -> b
$ String -> String -> IO [String]
cabalCradleDependencies String
workDir String
workDir
    let cmd :: String
cmd = forall a. Show a => a -> String
show ([String
"cabal", String
cabalCommand] forall a. Semigroup a => a -> a -> a
<> [String]
cabalArgs)
    let errorMsg :: String
errorMsg = String
"Failed to run " forall a. Semigroup a => a -> a -> a
<> String
cmd forall a. Semigroup a => a -> a -> a
<> String
" in directory \"" forall a. Semigroup a => a -> a -> a
<> String
workDir forall a. Semigroup a => a -> a -> a
<> String
"\". Consult the logs for full command and error."
    forall (m :: * -> *) a.
Monad m =>
CradleError -> CradleLoadResultT m a
throwCE ([String] -> ExitCode -> [String] -> CradleError
CradleError [String]
deps ExitCode
ex ([String
errorMsg] forall a. Semigroup a => a -> a -> a
<> [String]
errorDetails))

  case [String] -> Maybe GhcProc
processCabalWrapperArgs [String]
args of
    Maybe GhcProc
Nothing -> do
      -- Provide some dependencies an IDE can look for to trigger a reload.
      -- Best effort. Assume the working directory is the
      -- root of the component, so we are right in trivial cases at least.
      [String]
deps <- forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO forall a b. (a -> b) -> a -> b
$ String -> String -> IO [String]
cabalCradleDependencies String
workDir String
workDir
      forall (m :: * -> *) a.
Monad m =>
CradleError -> CradleLoadResultT m a
throwCE ([String] -> ExitCode -> [String] -> CradleError
CradleError [String]
deps ExitCode
ex forall a b. (a -> b) -> a -> b
$
                ([String
"Failed to parse result of calling cabal" ] forall a. Semigroup a => a -> a -> a
<> [String]
errorDetails))
    Just (String
componentDir, [String]
final_args) -> do
      [String]
deps <- forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO forall a b. (a -> b) -> a -> b
$ String -> String -> IO [String]
cabalCradleDependencies String
workDir String
componentDir
      forall (m :: * -> *) a.
m (CradleLoadResult a) -> CradleLoadResultT m a
CradleLoadResultT forall a b. (a -> b) -> a -> b
$ forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ (ExitCode, [String], String, [String])
-> [String] -> CradleLoadResult ComponentOptions
makeCradleResult (ExitCode
ex, [String]
stde, String
componentDir, [String]
final_args) [String]
deps
  where
    -- Need to make relative on Windows, due to a Cabal bug with how it
    -- parses file targets with a C: drive in it
    fixTargetPath :: String -> String
fixTargetPath String
x
      | Bool
isWindows Bool -> Bool -> Bool
&& String -> Bool
hasDrive String
x = String -> String -> String
makeRelative String
workDir String
x
      | Bool
otherwise = String
x

removeInteractive :: [String] -> [String]
removeInteractive :: [String] -> [String]
removeInteractive = forall a. (a -> Bool) -> [a] -> [a]
filter (forall a. Eq a => a -> a -> Bool
/= String
"--interactive")

-- | Strip out any ["+RTS", ..., "-RTS"] sequences in the command string list.
data InRTS = OutsideRTS | InsideRTS

-- | Strip out any ["+RTS", ..., "-RTS"] sequences in the command string list.
--
-- >>> removeRTS ["option1", "+RTS -H32m -RTS", "option2"]
-- ["option1", "option2"]
--
-- >>> removeRTS ["option1", "+RTS", "-H32m", "-RTS", "option2"]
-- ["option1", "option2"]
--
-- >>> removeRTS ["option1", "+RTS -H32m"]
-- ["option1"]
--
-- >>> removeRTS ["option1", "+RTS -H32m", "-RTS", "option2"]
-- ["option1", "option2"]
--
-- >>> removeRTS ["option1", "+RTS -H32m", "-H32m -RTS", "option2"]
-- ["option1", "option2"]
removeRTS :: [String] -> [String]
removeRTS :: [String] -> [String]
removeRTS = InRTS -> [String] -> [String]
go InRTS
OutsideRTS
  where
    go :: InRTS -> [String] -> [String]
    go :: InRTS -> [String] -> [String]
go InRTS
_ [] = []
    go InRTS
OutsideRTS (String
y:[String]
ys)
      | String
"+RTS" forall a. Eq a => [a] -> [a] -> Bool
`isPrefixOf` String
y = InRTS -> [String] -> [String]
go (if String
"-RTS" forall a. Eq a => [a] -> [a] -> Bool
`isSuffixOf` String
y then InRTS
OutsideRTS else InRTS
InsideRTS) [String]
ys
      | Bool
otherwise = String
y forall a. a -> [a] -> [a]
: InRTS -> [String] -> [String]
go InRTS
OutsideRTS [String]
ys
    go InRTS
InsideRTS (String
y:[String]
ys) = InRTS -> [String] -> [String]
go (if String
"-RTS" forall a. Eq a => [a] -> [a] -> Bool
`isSuffixOf` String
y then InRTS
OutsideRTS else InRTS
InsideRTS) [String]
ys


removeVerbosityOpts :: [String] -> [String]
removeVerbosityOpts :: [String] -> [String]
removeVerbosityOpts = forall a. (a -> Bool) -> [a] -> [a]
filter (Bool -> Bool -> Bool
(&&) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (forall a. Eq a => a -> a -> Bool
/= String
"-v0") forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> (forall a. Eq a => a -> a -> Bool
/= String
"-w"))


cabalWorkDir :: FilePath -> MaybeT IO FilePath
cabalWorkDir :: String -> MaybeT IO String
cabalWorkDir String
wdir =
      (String -> Bool) -> String -> MaybeT IO String
findFileUpwards (forall a. Eq a => a -> a -> Bool
== String
"cabal.project") String
wdir
  forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
<|> (String -> Bool) -> String -> MaybeT IO String
findFileUpwards (\String
fp -> String -> String
takeExtension String
fp forall a. Eq a => a -> a -> Bool
== String
".cabal") String
wdir

------------------------------------------------------------------------

-- | Explicit data-type for stack.yaml configuration location.
-- It is basically a 'Maybe' type, but helps to document the API
-- and helps to avoid incorrect usage.
data StackYaml
  = NoExplicitYaml
  | ExplicitYaml FilePath

-- | Create an explicit StackYaml configuration from the
stackYamlFromMaybe :: FilePath -> Maybe FilePath -> StackYaml
stackYamlFromMaybe :: String -> Maybe String -> StackYaml
stackYamlFromMaybe String
_wdir Maybe String
Nothing = StackYaml
NoExplicitYaml
stackYamlFromMaybe String
wdir (Just String
fp) = String -> StackYaml
ExplicitYaml (String
wdir String -> String -> String
</> String
fp)

stackYamlProcessArgs :: StackYaml -> [String]
stackYamlProcessArgs :: StackYaml -> [String]
stackYamlProcessArgs (ExplicitYaml String
yaml) = [String
"--stack-yaml", String
yaml]
stackYamlProcessArgs StackYaml
NoExplicitYaml = []

stackYamlLocationOrDefault :: StackYaml -> FilePath
stackYamlLocationOrDefault :: StackYaml -> String
stackYamlLocationOrDefault StackYaml
NoExplicitYaml = String
"stack.yaml"
stackYamlLocationOrDefault (ExplicitYaml String
yaml) = String
yaml

-- | Stack Cradle
-- Works for by invoking `stack repl` with a wrapper script
stackCradle :: FilePath -> Maybe String -> StackYaml -> Cradle a
stackCradle :: forall a. String -> Maybe String -> StackYaml -> Cradle a
stackCradle String
wdir Maybe String
mc StackYaml
syaml =
  Cradle
    { cradleRootDir :: String
cradleRootDir    = String
wdir
    , cradleOptsProg :: CradleAction a
cradleOptsProg   = CradleAction
        { actionName :: ActionName a
actionName = forall a. ActionName a
Types.Stack
        , runCradle :: LogAction IO (WithSeverity Log)
-> String -> IO (CradleLoadResult ComponentOptions)
runCradle = String
-> Maybe String
-> StackYaml
-> LogAction IO (WithSeverity Log)
-> String
-> IO (CradleLoadResult ComponentOptions)
stackAction String
wdir Maybe String
mc StackYaml
syaml
        , runGhcCmd :: LogAction IO (WithSeverity Log)
-> [String] -> IO (CradleLoadResult String)
runGhcCmd = \LogAction IO (WithSeverity Log)
l [String]
args -> forall (m :: * -> *) a.
CradleLoadResultT m a -> m (CradleLoadResult a)
runCradleResultT forall a b. (a -> b) -> a -> b
$ do
            -- Setup stack silently, since stack might print stuff to stdout in some cases (e.g. on Win)
            -- Issue 242 from HLS: https://github.com/haskell/haskell-language-server/issues/242
            String
_ <- LogAction IO (WithSeverity Log)
-> String
-> String
-> [String]
-> String
-> CradleLoadResultT IO String
readProcessWithCwd_ LogAction IO (WithSeverity Log)
l String
wdir String
"stack" (StackYaml -> [String]
stackYamlProcessArgs StackYaml
syaml forall a. Semigroup a => a -> a -> a
<> [String
"setup", String
"--silent"]) String
""
            LogAction IO (WithSeverity Log)
-> String
-> String
-> [String]
-> String
-> CradleLoadResultT IO String
readProcessWithCwd_ LogAction IO (WithSeverity Log)
l String
wdir String
"stack"
              (StackYaml -> [String]
stackYamlProcessArgs StackYaml
syaml forall a. Semigroup a => a -> a -> a
<> [String
"exec", String
"ghc", String
"--"] forall a. Semigroup a => a -> a -> a
<> [String]
args)
              String
""
        }
    }

-- | @'stackCradleDependencies' rootDir componentDir@.
-- Compute the dependencies of the stack cradle based
-- on the cradle root and the component directory.
--
-- Directory 'componentDir' is a sub-directory where we look for
-- package specific cradle dependencies, such as 'package.yaml' and
-- a '.cabal' file.
--
-- Found dependencies are relative to 'rootDir'.
stackCradleDependencies :: FilePath -> FilePath -> StackYaml -> IO [FilePath]
stackCradleDependencies :: String -> String -> StackYaml -> IO [String]
stackCradleDependencies String
wdir String
componentDir StackYaml
syaml = do
  let relFp :: String
relFp = String -> String -> String
makeRelative String
wdir String
componentDir
  [String]
cabalFiles' <- String -> IO [String]
findCabalFiles String
componentDir
  let cabalFiles :: [String]
cabalFiles = forall a b. (a -> b) -> [a] -> [b]
map (String
relFp String -> String -> String
</>) [String]
cabalFiles'
  forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a b. (a -> b) -> [a] -> [b]
map String -> String
normalise forall a b. (a -> b) -> a -> b
$
    [String]
cabalFiles forall a. [a] -> [a] -> [a]
++ [String
relFp String -> String -> String
</> String
"package.yaml", StackYaml -> String
stackYamlLocationOrDefault StackYaml
syaml]

stackAction
  :: FilePath
  -> Maybe String
  -> StackYaml
  -> LogAction IO (WithSeverity Log)
  -> FilePath
  -> IO (CradleLoadResult ComponentOptions)
stackAction :: String
-> Maybe String
-> StackYaml
-> LogAction IO (WithSeverity Log)
-> String
-> IO (CradleLoadResult ComponentOptions)
stackAction String
workDir Maybe String
mc StackYaml
syaml LogAction IO (WithSeverity Log)
l String
_fp = do
  let ghcProcArgs :: GhcProc
ghcProcArgs = (String
"stack", StackYaml -> [String]
stackYamlProcessArgs StackYaml
syaml forall a. Semigroup a => a -> a -> a
<> [String
"exec", String
"ghc", String
"--"])
  -- Same wrapper works as with cabal
  String
wrapper_fp <- LogAction IO (WithSeverity Log) -> GhcProc -> String -> IO String
withGhcWrapperTool LogAction IO (WithSeverity Log)
l GhcProc
ghcProcArgs String
workDir
  (ExitCode
ex1, [String]
_stdo, [String]
stde, [(String
_, Maybe [String]
maybeArgs)]) <-
    LogAction IO (WithSeverity Log)
-> StackYaml -> [String] -> IO CreateProcess
stackProcess LogAction IO (WithSeverity Log)
l StackYaml
syaml
                ([String
"repl", String
"--no-nix-pure", String
"--with-ghc", String
wrapper_fp]
                    forall a. Semigroup a => a -> a -> a
<> [ String
comp | Just String
comp <- [Maybe String
mc] ]) forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>=
      [String]
-> LogAction IO (WithSeverity Log)
-> String
-> CreateProcess
-> IO (ExitCode, [String], [String], [(String, Maybe [String])])
readProcessWithOutputs [String
hie_bios_output] LogAction IO (WithSeverity Log)
l String
workDir 
  (ExitCode
ex2, [String]
pkg_args, [String]
stdr, [(String, Maybe [String])]
_) <-
    LogAction IO (WithSeverity Log)
-> StackYaml -> [String] -> IO CreateProcess
stackProcess LogAction IO (WithSeverity Log)
l StackYaml
syaml [String
"path", String
"--ghc-package-path"] forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>=
      [String]
-> LogAction IO (WithSeverity Log)
-> String
-> CreateProcess
-> IO (ExitCode, [String], [String], [(String, Maybe [String])])
readProcessWithOutputs [String
hie_bios_output] LogAction IO (WithSeverity Log)
l String
workDir
  let split_pkgs :: [String]
split_pkgs = forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap String -> [String]
splitSearchPath [String]
pkg_args
      pkg_ghc_args :: [String]
pkg_ghc_args = forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
concatMap (\String
p -> [String
"-package-db", String
p] ) [String]
split_pkgs
      args :: [String]
args = forall a. a -> Maybe a -> a
fromMaybe [] Maybe [String]
maybeArgs
  case [String] -> Maybe GhcProc
processCabalWrapperArgs [String]
args of
      Maybe GhcProc
Nothing -> do
        -- Best effort. Assume the working directory is the
        -- the root of the component, so we are right in trivial cases at least.
        [String]
deps <- String -> String -> StackYaml -> IO [String]
stackCradleDependencies String
workDir String
workDir StackYaml
syaml
        forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ forall r. CradleError -> CradleLoadResult r
CradleFail
                  ([String] -> ExitCode -> [String] -> CradleError
CradleError [String]
deps ExitCode
ex1 forall a b. (a -> b) -> a -> b
$
                    [ String
"Failed to parse result of calling stack" ]
                    forall a. [a] -> [a] -> [a]
++ [String]
stde
                    forall a. [a] -> [a] -> [a]
++ [String]
args
                  )

      Just (String
componentDir, [String]
ghc_args) -> do
        [String]
deps <- String -> String -> StackYaml -> IO [String]
stackCradleDependencies String
workDir String
componentDir StackYaml
syaml
        forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ (ExitCode, [String], String, [String])
-> [String] -> CradleLoadResult ComponentOptions
makeCradleResult
                  ( [ExitCode] -> ExitCode
combineExitCodes [ExitCode
ex1, ExitCode
ex2]
                  , [String]
stde forall a. [a] -> [a] -> [a]
++ [String]
stdr, String
componentDir
                  , [String]
ghc_args forall a. [a] -> [a] -> [a]
++ [String]
pkg_ghc_args
                  )
                  [String]
deps

stackProcess :: LogAction IO (WithSeverity Log) -> StackYaml -> [String] -> IO CreateProcess
stackProcess :: LogAction IO (WithSeverity Log)
-> StackYaml -> [String] -> IO CreateProcess
stackProcess LogAction IO (WithSeverity Log)
l StackYaml
syaml [String]
args = LogAction IO (WithSeverity Log)
-> String -> [String] -> IO CreateProcess
loggedProc LogAction IO (WithSeverity Log)
l String
"stack" forall a b. (a -> b) -> a -> b
$ StackYaml -> [String]
stackYamlProcessArgs StackYaml
syaml forall a. Semigroup a => a -> a -> a
<> [String]
args

combineExitCodes :: [ExitCode] -> ExitCode
combineExitCodes :: [ExitCode] -> ExitCode
combineExitCodes = forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr ExitCode -> ExitCode -> ExitCode
go ExitCode
ExitSuccess
  where
    go :: ExitCode -> ExitCode -> ExitCode
go ExitCode
ExitSuccess ExitCode
b = ExitCode
b
    go ExitCode
a ExitCode
_ = ExitCode
a

stackExecutable :: MaybeT IO FilePath
stackExecutable :: MaybeT IO String
stackExecutable = forall (m :: * -> *) a. m (Maybe a) -> MaybeT m a
MaybeT forall a b. (a -> b) -> a -> b
$ String -> IO (Maybe String)
findExecutable String
"stack"

stackWorkDir :: FilePath -> MaybeT IO FilePath
stackWorkDir :: String -> MaybeT IO String
stackWorkDir = (String -> Bool) -> String -> MaybeT IO String
findFileUpwards forall {a}. (Eq a, IsString a) => a -> Bool
isStack
  where
    isStack :: a -> Bool
isStack a
name = a
name forall a. Eq a => a -> a -> Bool
== a
"stack.yaml"

{-
-- Support removed for 0.3 but should be added back in the future
----------------------------------------------------------------------------
-- rules_haskell - Thanks for David Smith for helping with this one.
-- Looks for the directory containing a WORKSPACE file
--
rulesHaskellWorkDir :: FilePath -> MaybeT IO FilePath
rulesHaskellWorkDir fp =
  findFileUpwards (== "WORKSPACE") fp

rulesHaskellCradle :: FilePath -> Cradle
rulesHaskellCradle wdir =
  Cradle
    { cradleRootDir  = wdir
    , cradleOptsProg   = CradleAction
        { actionName = "bazel"
        , runCradle = rulesHaskellAction wdir
        }
    }

rulesHaskellCradleDependencies :: FilePath -> IO [FilePath]
rulesHaskellCradleDependencies _wdir = return ["BUILD.bazel", "WORKSPACE"]

bazelCommand :: String
bazelCommand = $(embedStringFile "wrappers/bazel")

rulesHaskellAction :: FilePath -> FilePath -> IO (CradleLoadResult ComponentOptions)
rulesHaskellAction workDir fp = do
  wrapper_fp <- writeSystemTempFile "wrapper" bazelCommand
  setFileMode wrapper_fp accessModes
  let rel_path = makeRelative workDir fp
  (ex, args, stde) <-
      readProcessWithOutputFile workDir wrapper_fp [rel_path] []
  let args'  = filter (/= '\'') args
  let args'' = filter (/= "\"$GHCI_LOCATION\"") (words args')
  deps <- rulesHaskellCradleDependencies workDir
  return $ makeCradleResult (ex, stde, args'') deps


------------------------------------------------------------------------------
-- Obelisk Cradle
-- Searches for the directory which contains `.obelisk`.

obeliskWorkDir :: FilePath -> MaybeT IO FilePath
obeliskWorkDir fp = do
  -- Find a possible root which will contain the cabal.project
  wdir <- findFileUpwards (== "cabal.project") fp
  -- Check for the ".obelisk" folder in this directory
  check <- liftIO $ doesDirectoryExist (wdir </> ".obelisk")
  unless check (fail "Not obelisk dir")
  return wdir

obeliskCradleDependencies :: FilePath -> IO [FilePath]
obeliskCradleDependencies _wdir = return []

obeliskCradle :: FilePath -> Cradle
obeliskCradle wdir =
  Cradle
    { cradleRootDir  = wdir
    , cradleOptsProg = CradleAction
        { actionName = "obelisk"
        , runCradle = obeliskAction wdir
        }
    }

obeliskAction :: FilePath -> FilePath -> IO (CradleLoadResult ComponentOptions)
obeliskAction workDir _fp = do
  (ex, args, stde) <-
      readProcessWithOutputFile workDir "ob" ["ide-args"] []

  o_deps <- obeliskCradleDependencies workDir
  return (makeCradleResult (ex, stde, words args) o_deps )

-}
------------------------------------------------------------------------------
-- Utilities


-- | Searches upwards for the first directory containing a file to match
-- the predicate.
findFileUpwards :: (FilePath -> Bool) -> FilePath -> MaybeT IO FilePath
findFileUpwards :: (String -> Bool) -> String -> MaybeT IO String
findFileUpwards String -> Bool
p String
dir = do
  [String]
cnts <-
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO
    forall a b. (a -> b) -> a -> b
$ forall e b a.
Exception e =>
(e -> Maybe b) -> (b -> IO a) -> IO a -> IO a
handleJust
        -- Catch permission errors
        (\(IOError
e :: IOError) -> if IOError -> Bool
isPermissionError IOError
e then forall a. a -> Maybe a
Just [] else forall a. Maybe a
Nothing)
        forall (f :: * -> *) a. Applicative f => a -> f a
pure
        ((String -> Bool) -> String -> IO [String]
findFile String -> Bool
p String
dir)

  case [String]
cnts of
    [] | String
dir' forall a. Eq a => a -> a -> Bool
== String
dir -> forall (m :: * -> *) a. MonadFail m => String -> m a
fail String
"No cabal files"
            | Bool
otherwise   -> (String -> Bool) -> String -> MaybeT IO String
findFileUpwards String -> Bool
p String
dir'
    String
_ : [String]
_ -> forall (m :: * -> *) a. Monad m => a -> m a
return String
dir
  where dir' :: String
dir' = String -> String
takeDirectory String
dir

-- | Sees if any file in the directory matches the predicate
findFile :: (FilePath -> Bool) -> FilePath -> IO [FilePath]
findFile :: (String -> Bool) -> String -> IO [String]
findFile String -> Bool
p String
dir = do
  Bool
b <- String -> IO Bool
doesDirectoryExist String
dir
  if Bool
b then IO [String]
getFiles forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= forall (m :: * -> *) a.
Applicative m =>
(a -> m Bool) -> [a] -> m [a]
filterM String -> IO Bool
doesPredFileExist else forall (m :: * -> *) a. Monad m => a -> m a
return []
  where
    getFiles :: IO [String]
getFiles = forall a. (a -> Bool) -> [a] -> [a]
filter String -> Bool
p forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> String -> IO [String]
getDirectoryContents String
dir
    doesPredFileExist :: String -> IO Bool
doesPredFileExist String
file = String -> IO Bool
doesFileExist forall a b. (a -> b) -> a -> b
$ String
dir String -> String -> String
</> String
file

-- | Some environments (e.g. stack exec) include GHC_PACKAGE_PATH.
-- Cabal v2 *will* complain, even though or precisely because it ignores them.
-- Unset them from the environment to sidestep this
getCleanEnvironment :: IO [(String, String)]
getCleanEnvironment :: IO [(String, String)]
getCleanEnvironment = do
  forall k v. HashMap k v -> [(k, v)]
Map.toList forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall k v. (Eq k, Hashable k) => k -> HashMap k v -> HashMap k v
Map.delete String
"GHC_PACKAGE_PATH" forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall k v. (Eq k, Hashable k) => [(k, v)] -> HashMap k v
Map.fromList forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> IO [(String, String)]
getEnvironment

type Outputs = [OutputName]
type OutputName = String

-- | Call a given process with temp files for the process to write to.
-- * The process can discover the temp files paths by reading the environment.
-- * The contents of the temp files are returned by this function, if any.
-- * The logging function is called every time the process emits anything to stdout or stderr.
-- it can be used to report progress of the process to a user.
-- * The process is executed in the given directory.
readProcessWithOutputs
  :: Outputs  -- ^ Names of the outputs produced by this process
  -> LogAction IO (WithSeverity Log) -- ^ Output of the process is emitted as logs.
  -> FilePath -- ^ Working directory. Process is executed in this directory.
  -> CreateProcess -- ^ Parameters for the process to be executed.
  -> IO (ExitCode, [String], [String], [(OutputName, Maybe [String])])
readProcessWithOutputs :: [String]
-> LogAction IO (WithSeverity Log)
-> String
-> CreateProcess
-> IO (ExitCode, [String], [String], [(String, Maybe [String])])
readProcessWithOutputs [String]
outputNames LogAction IO (WithSeverity Log)
l String
workDir CreateProcess
cp = forall a b c. (a -> b -> c) -> b -> a -> c
flip forall {k} (r :: k) (m :: k -> *) a.
ContT r m a -> (a -> m r) -> m r
runContT forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ do
  [(String, String)]
old_env <- forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO IO [(String, String)]
getCleanEnvironment
  [(String, String)]
output_files <- forall (t :: * -> *) (f :: * -> *) a b.
(Traversable t, Applicative f) =>
(a -> f b) -> t a -> f (t b)
traverse (forall a.
[(String, String)] -> String -> ContT a IO (String, String)
withOutput [(String, String)]
old_env) [String]
outputNames

  let process :: CreateProcess
process = CreateProcess
cp { env :: Maybe [(String, String)]
env = forall a. a -> Maybe a
Just forall a b. (a -> b) -> a -> b
$ [(String, String)]
output_files forall a. [a] -> [a] -> [a]
++ forall a. a -> Maybe a -> a
fromMaybe [(String, String)]
old_env (CreateProcess -> Maybe [(String, String)]
env CreateProcess
cp),
                     cwd :: Maybe String
cwd = forall a. a -> Maybe a
Just String
workDir
                    }

    -- Windows line endings are not converted so you have to filter out `'r` characters
  let loggingConduit :: ConduitT ByteString c IO [String]
loggingConduit = forall (m :: * -> *). MonadThrow m => ConduitT ByteString Text m ()
C.decodeUtf8  forall (m :: * -> *) a b c r.
Monad m =>
ConduitT a b m () -> ConduitT b c m r -> ConduitT a c m r
C..| forall (m :: * -> *). Monad m => ConduitT Text Text m ()
C.lines forall (m :: * -> *) a b c r.
Monad m =>
ConduitT a b m () -> ConduitT b c m r -> ConduitT a c m r
C..| forall seq (m :: * -> *).
(IsSequence seq, Monad m) =>
(Element seq -> Bool) -> ConduitT seq seq m ()
C.filterE (forall a. Eq a => a -> a -> Bool
/= Char
'\r')
        forall (m :: * -> *) a b c r.
Monad m =>
ConduitT a b m () -> ConduitT b c m r -> ConduitT a c m r
C..| forall (m :: * -> *) a b. Monad m => (a -> b) -> ConduitT a b m ()
C.map Text -> String
T.unpack forall (m :: * -> *) a b c r.
Monad m =>
ConduitT a b m () -> ConduitT b c m r -> ConduitT a c m r
C..| forall (m :: * -> *) a. Monad m => (a -> m ()) -> ConduitT a a m ()
C.iterM (\String
msg -> LogAction IO (WithSeverity Log)
l forall (m :: * -> *) msg. LogAction m msg -> msg -> m ()
<& String -> Log
LogProcessOutput String
msg forall msg. msg -> Severity -> WithSeverity msg
`WithSeverity` Severity
Debug) forall (m :: * -> *) a b c r.
Monad m =>
ConduitT a b m () -> ConduitT b c m r -> ConduitT a c m r
C..| forall (m :: * -> *) a o. Monad m => ConduitT a o m [a]
C.sinkList
  (ExitCode
ex, [String]
stdo, [String]
stde) <- forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO forall a b. (a -> b) -> a -> b
$ forall (m :: * -> *) a b.
MonadUnliftIO m =>
CreateProcess
-> ConduitT () ByteString m ()
-> ConduitT ByteString Void m a
-> ConduitT ByteString Void m b
-> m (ExitCode, a, b)
sourceProcessWithStreams CreateProcess
process forall a. Monoid a => a
mempty forall {c}. ConduitT ByteString c IO [String]
loggingConduit forall {c}. ConduitT ByteString c IO [String]
loggingConduit

  [(String, Maybe [String])]
res <- forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
t a -> (a -> m b) -> m (t b)
forM [(String, String)]
output_files forall a b. (a -> b) -> a -> b
$ \(String
name,String
path) ->
          forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO forall a b. (a -> b) -> a -> b
$ (String
name,) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> String -> IO (Maybe [String])
readOutput String
path

  forall (m :: * -> *) a. Monad m => a -> m a
return (ExitCode
ex, [String]
stdo, [String]
stde, [(String, Maybe [String])]
res)

    where
      readOutput :: FilePath -> IO (Maybe [String])
      readOutput :: String -> IO (Maybe [String])
readOutput String
path = do
        Bool
haveFile <- String -> IO Bool
doesFileExist String
path
        if Bool
haveFile
          then forall r. String -> IOMode -> (Handle -> IO r) -> IO r
withFile String
path IOMode
ReadMode forall a b. (a -> b) -> a -> b
$ \Handle
handle -> do
            Handle -> BufferMode -> IO ()
hSetBuffering Handle
handle BufferMode
LineBuffering
            !String
res <- forall a. NFData a => a -> a
force forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Handle -> IO String
hGetContents Handle
handle
            forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a. a -> Maybe a
Just forall a b. (a -> b) -> a -> b
$ String -> [String]
lines forall a b. (a -> b) -> a -> b
$ forall a. (a -> Bool) -> [a] -> [a]
filter (forall a. Eq a => a -> a -> Bool
/= Char
'\r') String
res
          else
            forall (m :: * -> *) a. Monad m => a -> m a
return forall a. Maybe a
Nothing

      withOutput :: [(String,String)] -> OutputName -> ContT a IO (OutputName, String)
      withOutput :: forall a.
[(String, String)] -> String -> ContT a IO (String, String)
withOutput [(String, String)]
env' String
name =
        case forall a b. Eq a => a -> [(a, b)] -> Maybe b
lookup String
name [(String, String)]
env' of
          Just file :: String
file@(Char
_:String
_) -> forall {k} (r :: k) (m :: k -> *) a.
((a -> m r) -> m r) -> ContT r m a
ContT forall a b. (a -> b) -> a -> b
$ \(String, String) -> IO a
action -> do
            String -> IO ()
removeFileIfExists String
file
            (String, String) -> IO a
action (String
name, String
file)
          Maybe String
_ -> forall {k} (r :: k) (m :: k -> *) a.
((a -> m r) -> m r) -> ContT r m a
ContT forall a b. (a -> b) -> a -> b
$ \(String, String) -> IO a
action -> forall (m :: * -> *) a.
(MonadIO m, MonadMask m) =>
String -> (String -> Handle -> m a) -> m a
withSystemTempFile String
name forall a b. (a -> b) -> a -> b
$ \ String
file Handle
h -> do
            Handle -> IO ()
hClose Handle
h
            String -> IO ()
removeFileIfExists String
file
            (String, String) -> IO a
action (String
name, String
file)

removeFileIfExists :: FilePath -> IO ()
removeFileIfExists :: String -> IO ()
removeFileIfExists String
f = do
  Bool
yes <- String -> IO Bool
doesFileExist String
f
  forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when Bool
yes (String -> IO ()
removeFile String
f)

makeCradleResult :: (ExitCode, [String], FilePath, [String]) -> [FilePath] -> CradleLoadResult ComponentOptions
makeCradleResult :: (ExitCode, [String], String, [String])
-> [String] -> CradleLoadResult ComponentOptions
makeCradleResult (ExitCode
ex, [String]
err, String
componentDir, [String]
gopts) [String]
deps =
  case ExitCode
ex of
    ExitFailure Int
_ -> forall r. CradleError -> CradleLoadResult r
CradleFail ([String] -> ExitCode -> [String] -> CradleError
CradleError [String]
deps ExitCode
ex [String]
err)
    ExitCode
_ ->
        let compOpts :: ComponentOptions
compOpts = [String] -> String -> [String] -> ComponentOptions
ComponentOptions [String]
gopts String
componentDir [String]
deps
        in forall r. r -> CradleLoadResult r
CradleSuccess ComponentOptions
compOpts

-- | Calls @ghc --print-libdir@, with just whatever's on the PATH.
runGhcCmdOnPath :: LogAction IO (WithSeverity Log) -> FilePath -> [String] -> IO (CradleLoadResult String)
runGhcCmdOnPath :: LogAction IO (WithSeverity Log)
-> String -> [String] -> IO (CradleLoadResult String)
runGhcCmdOnPath LogAction IO (WithSeverity Log)
l String
wdir [String]
args = LogAction IO (WithSeverity Log)
-> String
-> String
-> [String]
-> String
-> IO (CradleLoadResult String)
readProcessWithCwd LogAction IO (WithSeverity Log)
l String
wdir String
"ghc" [String]
args String
""
  -- case mResult of
  --   Nothing

-- | Wrapper around 'readCreateProcess' that sets the working directory and
-- clears the environment, suitable for invoking cabal/stack and raw ghc commands.
readProcessWithCwd :: LogAction IO (WithSeverity Log) -> FilePath -> FilePath -> [String] -> String -> IO (CradleLoadResult String)
readProcessWithCwd :: LogAction IO (WithSeverity Log)
-> String
-> String
-> [String]
-> String
-> IO (CradleLoadResult String)
readProcessWithCwd LogAction IO (WithSeverity Log)
l String
dir String
cmd [String]
args String
stdin = forall (m :: * -> *) a.
CradleLoadResultT m a -> m (CradleLoadResult a)
runCradleResultT forall a b. (a -> b) -> a -> b
$ LogAction IO (WithSeverity Log)
-> String
-> String
-> [String]
-> String
-> CradleLoadResultT IO String
readProcessWithCwd_ LogAction IO (WithSeverity Log)
l String
dir String
cmd [String]
args String
stdin

readProcessWithCwd_ :: LogAction IO (WithSeverity Log) -> FilePath -> FilePath -> [String] -> String -> CradleLoadResultT IO String
readProcessWithCwd_ :: LogAction IO (WithSeverity Log)
-> String
-> String
-> [String]
-> String
-> CradleLoadResultT IO String
readProcessWithCwd_ LogAction IO (WithSeverity Log)
l String
dir String
cmd [String]
args String
stdin = do
  [(String, String)]
cleanEnv <- forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO IO [(String, String)]
getCleanEnvironment
  CreateProcess
createdProc <- forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO forall a b. (a -> b) -> a -> b
$ LogAction IO (WithSeverity Log)
-> String -> [String] -> IO CreateProcess
loggedProc LogAction IO (WithSeverity Log)
l String
cmd [String]
args
  let createdProc' :: CreateProcess
createdProc' = CreateProcess
createdProc { cwd :: Maybe String
cwd = forall a. a -> Maybe a
Just String
dir, env :: Maybe [(String, String)]
env = forall a. a -> Maybe a
Just [(String, String)]
cleanEnv }
  CreateProcess -> String -> CradleLoadResultT IO String
readProcessWithCwd' CreateProcess
createdProc' String
stdin

-- | Wrapper around 'readCreateProcessWithExitCode', wrapping the result in
-- a 'CradleLoadResult'. Provides better error messages than raw 'readCreateProcess'.
readProcessWithCwd' :: CreateProcess -> String -> CradleLoadResultT IO String
readProcessWithCwd' :: CreateProcess -> String -> CradleLoadResultT IO String
readProcessWithCwd' CreateProcess
createdProcess String
stdin = do
  Maybe (ExitCode, String, String)
mResult <- forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO forall a b. (a -> b) -> a -> b
$ forall (f :: * -> *) a. Alternative f => f a -> f (Maybe a)
optional forall a b. (a -> b) -> a -> b
$ CreateProcess -> String -> IO (ExitCode, String, String)
readCreateProcessWithExitCode CreateProcess
createdProcess String
stdin
  let cmdString :: String
cmdString = CmdSpec -> String
prettyCmdSpec forall a b. (a -> b) -> a -> b
$ CreateProcess -> CmdSpec
cmdspec CreateProcess
createdProcess
  case Maybe (ExitCode, String, String)
mResult of
    Just (ExitCode
ExitSuccess, String
stdo, String
_) -> forall (f :: * -> *) a. Applicative f => a -> f a
pure String
stdo
    Just (ExitCode
exitCode, String
stdo, String
stde) -> forall (m :: * -> *) a.
Monad m =>
CradleError -> CradleLoadResultT m a
throwCE forall a b. (a -> b) -> a -> b
$
      [String] -> ExitCode -> [String] -> CradleError
CradleError [] ExitCode
exitCode forall a b. (a -> b) -> a -> b
$
        [String
"Error when calling " forall a. Semigroup a => a -> a -> a
<> String
cmdString, String
stdo, String
stde] forall a. Semigroup a => a -> a -> a
<> CreateProcess -> [String]
prettyProcessEnv CreateProcess
createdProcess
    Maybe (ExitCode, String, String)
Nothing -> forall (m :: * -> *) a.
Monad m =>
CradleError -> CradleLoadResultT m a
throwCE forall a b. (a -> b) -> a -> b
$
      [String] -> ExitCode -> [String] -> CradleError
CradleError [] ExitCode
ExitSuccess forall a b. (a -> b) -> a -> b
$
        [String
"Couldn't execute " forall a. Semigroup a => a -> a -> a
<> String
cmdString] forall a. Semigroup a => a -> a -> a
<> CreateProcess -> [String]
prettyProcessEnv CreateProcess
createdProcess

-- | Prettify 'CmdSpec', so we can show the command to a user
prettyCmdSpec :: CmdSpec -> String
prettyCmdSpec :: CmdSpec -> String
prettyCmdSpec (ShellCommand String
s) = String
s
prettyCmdSpec (RawCommand String
cmd [String]
args) = String
cmd forall a. [a] -> [a] -> [a]
++ String
" " forall a. [a] -> [a] -> [a]
++ [String] -> String
unwords [String]
args

-- | Pretty print hie-bios's relevant environment variables.
prettyProcessEnv :: CreateProcess -> [String]
prettyProcessEnv :: CreateProcess -> [String]
prettyProcessEnv CreateProcess
p =
  [ String
key forall a. Semigroup a => a -> a -> a
<> String
": " forall a. Semigroup a => a -> a -> a
<> String
value
  | (String
key, String
value) <- forall a. a -> Maybe a -> a
fromMaybe [] (CreateProcess -> Maybe [(String, String)]
env CreateProcess
p)
  , String
key forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
`elem` [ String
hie_bios_output
               , String
hie_bios_ghc
               , String
hie_bios_ghc_args
               , String
hie_bios_arg
               , String
hie_bios_deps
               ]
  ]

loggedProc :: LogAction IO (WithSeverity Log) -> FilePath -> [String] -> IO CreateProcess
loggedProc :: LogAction IO (WithSeverity Log)
-> String -> [String] -> IO CreateProcess
loggedProc LogAction IO (WithSeverity Log)
l String
command [String]
args = do
  LogAction IO (WithSeverity Log)
l forall (m :: * -> *) msg. LogAction m msg -> msg -> m ()
<& String -> Log
LogProcessOutput ([String] -> String
unwords forall a b. (a -> b) -> a -> b
$ String
"executing command:"forall a. a -> [a] -> [a]
:String
commandforall a. a -> [a] -> [a]
:[String]
args) forall msg. msg -> Severity -> WithSeverity msg
`WithSeverity` Severity
Debug
  forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ String -> [String] -> CreateProcess
proc String
command [String]
args