{-# LANGUAGE NoImplicitPrelude #-}
{-# LANGUAGE ConstraintKinds #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE OverloadedStrings #-}
module Stack.Nix
(nixCmdName
,nixHelpOptName
,runShellAndExit
) where
import Stack.Prelude
import qualified Data.Text as T
import Data.Version (showVersion)
import Path.IO
import qualified Paths_stack as Meta
import Stack.Config (getInContainer, withBuildConfig)
import Stack.Config.Nix (nixCompiler)
import Stack.Constants (platformVariantEnvVar,inNixShellEnvVar,inContainerEnvVar)
import Stack.Types.Config
import Stack.Types.Docker
import Stack.Types.Nix
import System.Environment (getArgs,getExecutablePath,lookupEnv)
import qualified System.FilePath as F
import RIO.Process (processContextL, exec)
runShellAndExit :: RIO Config void
runShellAndExit :: RIO Config void
runShellAndExit = do
Bool
inContainer <- RIO Config Bool
forall (m :: * -> *). MonadIO m => m Bool
getInContainer
[String]
origArgs <- IO [String] -> RIO Config [String]
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO IO [String]
getArgs
let args :: [String]
args | Bool
inContainer = [String]
origArgs
| Bool
otherwise =
(String
"--" String -> String -> String
forall a. [a] -> [a] -> [a]
++ String
reExecArgName String -> String -> String
forall a. [a] -> [a] -> [a]
++ String
"=" String -> String -> String
forall a. [a] -> [a] -> [a]
++ Version -> String
showVersion Version
Meta.version) String -> [String] -> [String]
forall a. a -> [a] -> [a]
: [String]
origArgs
String
exePath <- IO String -> RIO Config String
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO IO String
getExecutablePath
Config
config <- Getting Config Config Config -> RIO Config Config
forall s (m :: * -> *) a. MonadReader s m => Getting a s a -> m a
view Getting Config Config Config
forall env. HasConfig env => Lens' env Config
configL
ProcessContext
envOverride <- Getting ProcessContext Config ProcessContext
-> RIO Config ProcessContext
forall s (m :: * -> *) a. MonadReader s m => Getting a s a -> m a
view Getting ProcessContext Config ProcessContext
forall env. HasProcessContext env => Lens' env ProcessContext
processContextL
(Config -> Config) -> RIO Config void -> RIO Config void
forall r (m :: * -> *) a. MonadReader r m => (r -> r) -> m a -> m a
local (ASetter Config Config ProcessContext ProcessContext
-> ProcessContext -> Config -> Config
forall s t a b. ASetter s t a b -> b -> s -> t
set ASetter Config Config ProcessContext ProcessContext
forall env. HasProcessContext env => Lens' env ProcessContext
processContextL ProcessContext
envOverride) (RIO Config void -> RIO Config void)
-> RIO Config void -> RIO Config void
forall a b. (a -> b) -> a -> b
$ do
let cmnd :: String
cmnd = String -> String
escape String
exePath
args' :: [String]
args' = (String -> String) -> [String] -> [String]
forall a b. (a -> b) -> [a] -> [b]
map String -> String
escape [String]
args
Maybe (Path Abs File)
mshellFile <- case Config -> Maybe (Path Abs Dir)
configProjectRoot Config
config of
Just Path Abs Dir
projectRoot ->
(String -> RIO Config (Path Abs File))
-> Maybe String -> RIO Config (Maybe (Path Abs File))
forall (t :: * -> *) (f :: * -> *) a b.
(Traversable t, Applicative f) =>
(a -> f b) -> t a -> f (t b)
traverse (Path Abs Dir -> String -> RIO Config (Path Abs File)
forall (m :: * -> *).
MonadIO m =>
Path Abs Dir -> String -> m (Path Abs File)
resolveFile Path Abs Dir
projectRoot) (Maybe String -> RIO Config (Maybe (Path Abs File)))
-> Maybe String -> RIO Config (Maybe (Path Abs File))
forall a b. (a -> b) -> a -> b
$ NixOpts -> Maybe String
nixInitFile (Config -> NixOpts
configNix Config
config)
Maybe (Path Abs Dir)
Nothing -> Maybe (Path Abs File) -> RIO Config (Maybe (Path Abs File))
forall (f :: * -> *) a. Applicative f => a -> f a
pure Maybe (Path Abs File)
forall a. Maybe a
Nothing
WantedCompiler
compilerVersion <- RIO BuildConfig WantedCompiler -> RIO Config WantedCompiler
forall a. RIO BuildConfig a -> RIO Config a
withBuildConfig (RIO BuildConfig WantedCompiler -> RIO Config WantedCompiler)
-> RIO BuildConfig WantedCompiler -> RIO Config WantedCompiler
forall a b. (a -> b) -> a -> b
$ Getting WantedCompiler BuildConfig WantedCompiler
-> RIO BuildConfig WantedCompiler
forall s (m :: * -> *) a. MonadReader s m => Getting a s a -> m a
view Getting WantedCompiler BuildConfig WantedCompiler
forall s r. HasBuildConfig s => Getting r s WantedCompiler
wantedCompilerVersionL
Text
ghc <- (StringException -> RIO Config Text)
-> (Text -> RIO Config Text)
-> Either StringException Text
-> RIO Config Text
forall a c b. (a -> c) -> (b -> c) -> Either a b -> c
either StringException -> RIO Config Text
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
throwIO Text -> RIO Config Text
forall (m :: * -> *) a. Monad m => a -> m a
return (Either StringException Text -> RIO Config Text)
-> Either StringException Text -> RIO Config Text
forall a b. (a -> b) -> a -> b
$ WantedCompiler -> Either StringException Text
nixCompiler WantedCompiler
compilerVersion
let pkgsInConfig :: [Text]
pkgsInConfig = NixOpts -> [Text]
nixPackages (Config -> NixOpts
configNix Config
config)
pkgs :: [Text]
pkgs = [Text]
pkgsInConfig [Text] -> [Text] -> [Text]
forall a. [a] -> [a] -> [a]
++ [Text
ghc, Text
"git", Text
"gcc", Text
"gmp"]
pkgsStr :: Text
pkgsStr = Text
"[" Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text -> [Text] -> Text
T.intercalate Text
" " [Text]
pkgs Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text
"]"
pureShell :: Bool
pureShell = NixOpts -> Bool
nixPureShell (Config -> NixOpts
configNix Config
config)
addGCRoots :: Bool
addGCRoots = NixOpts -> Bool
nixAddGCRoots (Config -> NixOpts
configNix Config
config)
nixopts :: [String]
nixopts = case Maybe (Path Abs File)
mshellFile of
Just Path Abs File
fp -> [Path Abs File -> String
forall b t. Path b t -> String
toFilePath Path Abs File
fp, String
"--arg", String
"ghc"
,String
"with (import <nixpkgs> {}); " String -> String -> String
forall a. [a] -> [a] -> [a]
++ Text -> String
T.unpack Text
ghc]
Maybe (Path Abs File)
Nothing -> [String
"-E", Text -> String
T.unpack (Text -> String) -> Text -> String
forall a b. (a -> b) -> a -> b
$ [Text] -> Text
T.concat
[Text
"with (import <nixpkgs> {}); "
,Text
"let inputs = ",Text
pkgsStr,Text
"; "
, Text
"libPath = lib.makeLibraryPath inputs; "
, Text
"stackExtraArgs = lib.concatMap (pkg: "
, Text
"[ ''--extra-lib-dirs=${lib.getLib pkg}/lib'' "
, Text
" ''--extra-include-dirs=${lib.getDev pkg}/include'' ]"
, Text
") inputs; in "
,Text
"runCommand ''myEnv'' { "
,Text
"buildInputs = lib.optional stdenv.isLinux glibcLocales ++ inputs; "
,String -> Text
T.pack String
platformVariantEnvVar Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text
"=''nix''; "
,String -> Text
T.pack String
inNixShellEnvVar Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text
"=1; "
,if Bool
inContainer
then String -> Text
T.pack String
inContainerEnvVar Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text
"=1; "
else Text
""
,Text
"LD_LIBRARY_PATH = libPath;"
,Text
"STACK_IN_NIX_EXTRA_ARGS = stackExtraArgs; "
,Text
"LANG=\"en_US.UTF-8\";"
,Text
"} \"\""]]
fullArgs :: [String]
fullArgs = [[String]] -> [String]
forall (t :: * -> *) a. Foldable t => t [a] -> [a]
concat [if Bool
pureShell then [String
"--pure"] else []
,if Bool
addGCRoots then [String
"--indirect", String
"--add-root"
,Path Rel Dir -> String
forall b t. Path b t -> String
toFilePath (Config -> Path Rel Dir
configWorkDir Config
config)
String -> String -> String
F.</> String
"nix-gc-symlinks" String -> String -> String
F.</> String
"gc-root"] else []
,(Text -> String) -> [Text] -> [String]
forall a b. (a -> b) -> [a] -> [b]
map Text -> String
T.unpack (NixOpts -> [Text]
nixShellOptions (Config -> NixOpts
configNix Config
config))
,[String]
nixopts
,[String
"--run", [String] -> String
unwords (String
cmndString -> [String] -> [String]
forall a. a -> [a] -> [a]
:String
"$STACK_IN_NIX_EXTRA_ARGS"String -> [String] -> [String]
forall a. a -> [a] -> [a]
:[String]
args')]
]
Maybe String
pathVar <- IO (Maybe String) -> RIO Config (Maybe String)
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO (Maybe String) -> RIO Config (Maybe String))
-> IO (Maybe String) -> RIO Config (Maybe String)
forall a b. (a -> b) -> a -> b
$ String -> IO (Maybe String)
lookupEnv String
"PATH"
Utf8Builder -> RIO Config ()
forall (m :: * -> *) env.
(MonadIO m, MonadReader env m, HasLogFunc env, HasCallStack) =>
Utf8Builder -> m ()
logDebug (Utf8Builder -> RIO Config ()) -> Utf8Builder -> RIO Config ()
forall a b. (a -> b) -> a -> b
$ Utf8Builder
"PATH is: " Utf8Builder -> Utf8Builder -> Utf8Builder
forall a. Semigroup a => a -> a -> a
<> Maybe String -> Utf8Builder
forall a. Show a => a -> Utf8Builder
displayShow Maybe String
pathVar
Utf8Builder -> RIO Config ()
forall (m :: * -> *) env.
(MonadIO m, MonadReader env m, HasLogFunc env, HasCallStack) =>
Utf8Builder -> m ()
logDebug (Utf8Builder -> RIO Config ()) -> Utf8Builder -> RIO Config ()
forall a b. (a -> b) -> a -> b
$
Utf8Builder
"Using a nix-shell environment " Utf8Builder -> Utf8Builder -> Utf8Builder
forall a. Semigroup a => a -> a -> a
<> (case Maybe (Path Abs File)
mshellFile of
Just Path Abs File
path -> Utf8Builder
"from file: " Utf8Builder -> Utf8Builder -> Utf8Builder
forall a. Semigroup a => a -> a -> a
<> String -> Utf8Builder
forall a. IsString a => String -> a
fromString (Path Abs File -> String
forall b t. Path b t -> String
toFilePath Path Abs File
path)
Maybe (Path Abs File)
Nothing -> Utf8Builder
"with nix packages: " Utf8Builder -> Utf8Builder -> Utf8Builder
forall a. Semigroup a => a -> a -> a
<> Text -> Utf8Builder
forall a. Display a => a -> Utf8Builder
display (Text -> [Text] -> Text
T.intercalate Text
", " [Text]
pkgs))
String -> [String] -> RIO Config void
forall env b.
(HasProcessContext env, HasLogFunc env) =>
String -> [String] -> RIO env b
exec String
"nix-shell" [String]
fullArgs
escape :: String -> String
escape :: String -> String
escape String
str = String
"'" String -> String -> String
forall a. [a] -> [a] -> [a]
++ (Char -> String -> String) -> String -> String -> String
forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr (\Char
c -> if Char
c Char -> Char -> Bool
forall a. Eq a => a -> a -> Bool
== Char
'\'' then
(String
"'\"'\"'"String -> String -> String
forall a. [a] -> [a] -> [a]
++)
else (Char
cChar -> String -> String
forall a. a -> [a] -> [a]
:)) String
"" String
str
String -> String -> String
forall a. [a] -> [a] -> [a]
++ String
"'"
nixCmdName :: String
nixCmdName :: String
nixCmdName = String
"nix"
nixHelpOptName :: String
nixHelpOptName :: String
nixHelpOptName = String
nixCmdName String -> String -> String
forall a. [a] -> [a] -> [a]
++ String
"-help"
data StackNixException
= CannotDetermineProjectRoot
deriving (Typeable)
instance Exception StackNixException
instance Show StackNixException where
show :: StackNixException -> String
show StackNixException
CannotDetermineProjectRoot =
String
"Cannot determine project root directory."