Stack GHCI Loads Only First Module

[ruggeri]

When I run stack ghci, it claims to load multiple files:

~/Chess$ stack ghci
Configuring GHCi with the following packages: Chess
GHCi, version 7.10.2: http://www.haskell.org/ghc/  :? for help
[ 1 of 13] Compiling Utils            ( /Users/ruggeri/Chess/src/Utils.hs, interpreted )
[ 2 of 13] Compiling Pos              ( /Users/ruggeri/Chess/src/Pos.hs, interpreted )
[ 3 of 13] Compiling Move             ( /Users/ruggeri/Chess/src/Move.hs, interpreted )
[ 4 of 13] Compiling Color            ( /Users/ruggeri/Chess/src/Color.hs, interpreted )[ 5 of 13] Compiling Piece            ( /Users/ruggeri/Chess/src/Piece.hs, interpreted )
[ 6 of 13] Compiling Board            ( /Users/ruggeri/Chess/src/Board.hs, interpreted )
[ 7 of 13] Compiling PieceMovement    ( /Users/ruggeri/Chess/src/PieceMovement.hs, interpreted )
[ 8 of 13] Compiling Game             ( /Users/ruggeri/Chess/src/Game.hs, interpreted )
[ 9 of 13] Compiling GameIO           ( /Users/ruggeri/Chess/src/GameIO.hs, interpreted )
[10 of 13] Compiling Search           ( /Users/ruggeri/Chess/src/Search.hs, interpreted )
[11 of 13] Compiling TestBoards       ( /Users/ruggeri/Chess/src/TestBoards.hs, interpreted )
[12 of 13] Compiling Abc              ( /Users/ruggeri/Chess/src/Abc.hs, interpreted )[13 of 13] Compiling Lib              ( /Users/ruggeri/Chess/src/Lib.hs, interpreted )
Ok, modules loaded: Lib, Abc, Board, Color, Game, GameIO, Move, Piece, PieceMovement, Pos, Search, TestBoards, Utils.
*Abc>

But as you can see, only the module Abc is in fact loaded. It appears the alphabetically first module of my code ("src/Abc.hs") is the one chosen.

Is there a way to configure the cabl file such that all modules are loaded? Thanks!

[chrisdone]

It did load them, hence why it says so in the message. But only the first is imported. The missing part seems to be having them all imported with :m + A B C. GHCi has never automatically done this, and it's why in haskell-mode I had Emacs itself do this:

<- Ok, modules loaded: Services.Server.Notification, Services.Server.Settings, Services.Server.Foundation, Services.Types, Services.Server.Constants, Services.Server.JSON, Services.Server.Print, Services.Server.Handler.Status.
-> :m + Services.Server.Notification Services.Server.Settings Services.Server.Foundation Services.Types Services.Server.Constants Services.Server.JSON Services.Server.Print Services.Server.Handler.Status

Perhaps we can make stack ghci automatically run this step too.

[rvion]

I +1 for stack ghci automatically importing all modules

[ruggeri]

Thanks for your replies! I'm not a Haskell power-user by any means, but as a n00b, I think it would be easier if stack ghci either imported all the modules or none. Importing just the first alphabetically feels weird.

Thanks again!

[chrisdone]

So it's rather a messy business to change our process launching code which now uses things from the unix package, etc. Writing to the stdin of the GHCi process is therefore a messy option. Instead, I've found this handy argument to GHCi called -ghci-script:

bash-3.2$ echo ":m + Data.List" > /tmp/ghci-script
bash-3.2$ stack ghci --ghc-options="-ghci-script /tmp/ghci-script"
Warning: Location of non-project configuration file at '/Users/chris/.stack/stack.yaml' is deprecated; rename it to '/Users/chris/.stack/config.yaml' instead
The following GHC options are incompatible with GHCi and have not been passed to it: -threaded
* * * * * * * *
The main module to load is ambiguous. Candidates are: 
Package `stack' component exe:stack with main-is file: /Users/chris/Work/stack/src/main/Main.hs
Package `stack' component test:stack-integration-test with main-is file: /Users/chris/Work/stack/test/integration/IntegrationSpec.hs
Package `stack' component test:stack-test with main-is file: /Users/chris/Work/stack/src/test/Test.hs
None will be loaded. You can specify which one to pick by: 
 1) Specifying targets to stack ghci e.g. stack ghci stack:exe:stack
 2) Specifying what the main is e.g. stack ghci --main-is stack:exe:stack
* * * * * * * *
Configuring GHCi with the following packages: stack
GHCi, version 7.10.2: http://www.haskell.org/ghc/  :? for help
unknown option: 'c'
[66 of 82] Compiling Stack.Build.ExecuteSpec ( /Users/chris/Work/stack/src/test/Stack/Build/ExecuteSpec.hs, interpreted )
[67 of 82] Compiling Network.HTTP.Download.VerifiedSpec ( /Users/chris/Work/stack/src/test/Network/HTTP/Download/VerifiedSpec.hs, interpreted )
[68 of 82] Compiling Data.Set.Monad   ( /Users/chris/Work/stack/src/Data/Set/Monad.hs, interpreted )
[69 of 82] Compiling Stack.ArgsSpec   ( /Users/chris/Work/stack/src/test/Stack/ArgsSpec.hs, interpreted )
[70 of 82] Compiling Stack.Build.TargetSpec ( /Users/chris/Work/stack/src/test/Stack/Build/TargetSpec.hs, interpreted )
[71 of 82] Compiling Stack.PackageDumpSpec ( /Users/chris/Work/stack/src/test/Stack/PackageDumpSpec.hs, interpreted )
[72 of 82] Compiling Stack.Exec       ( /Users/chris/Work/stack/src/Stack/Exec.hs, interpreted )
[73 of 82] Compiling Stack.BuildPlanSpec ( /Users/chris/Work/stack/src/test/Stack/BuildPlanSpec.hs, interpreted )
[74 of 82] Compiling Stack.ConfigSpec ( /Users/chris/Work/stack/src/test/Stack/ConfigSpec.hs, interpreted )
[75 of 82] Compiling Stack.Setup      ( /Users/chris/Work/stack/src/Stack/Setup.hs, interpreted )
[76 of 82] Compiling Stack.Docker     ( /Users/chris/Work/stack/src/Stack/Docker.hs, interpreted )
[77 of 82] Compiling Stack.DotSpec    ( /Users/chris/Work/stack/src/test/Stack/DotSpec.hs, interpreted )
[78 of 82] Compiling Spec             ( /Users/chris/Work/stack/src/test/Spec.hs, interpreted )
[79 of 82] Compiling Stack.Ghci       ( /Users/chris/Work/stack/src/Stack/Ghci.hs, interpreted )
[80 of 82] Compiling Stack.Ide        ( /Users/chris/Work/stack/src/Stack/Ide.hs, interpreted )
[81 of 82] Compiling Stack.Options    ( /Users/chris/Work/stack/src/Stack/Options.hs, interpreted )
[82 of 82] Compiling Stack.Upgrade    ( /Users/chris/Work/stack/src/Stack/Upgrade.hs, interpreted )
Ok, modules loaded: Control.Concurrent.Execute, Stack.Types, Data.Aeson.Extended, Data.Attoparsec.Args, Data.Attoparsec.Combinators, Data.Binary.VersionTagged, Data.IORef.RunOnce, Data.Maybe.Extra, Data.Set.Monad, Distribution.Version.Extra, Network.HTTP.Download, Network.HTTP.Download.Verified, Network.HTTP.Download.VerifiedSpec, Path.IO, Options.Applicative.Args, Options.Applicative.Builder.Extra, Path.Extra, Path.Find, Paths_stack, Spec, Stack.ArgsSpec, Stack.Build, Stack.Build.ExecuteSpec, Stack.Build.TargetSpec, Stack.BuildPlanSpec, Stack.ConfigSpec, Stack.DotSpec, Stack.PackageDumpSpec, Stack.Build.ConstructPlan, Stack.Build.Execute, Stack.Build.Haddock, Stack.Build.Installed, Stack.Build.Source, Stack.Build.Target, Stack.Constants, Stack.Fetch, Stack.GhcPkg, Stack.Package, Stack.Types.Internal, Stack.Build.Cache, Stack.Types.Build, Stack.BuildPlan, Stack.PackageDump, Stack.PackageIndex, Stack.Coverage, Stack.Types.StackT, System.Process.Read, System.Process.Run, System.Process.Log, Stack.Types.Version, Stack.Config, Stack.Config.Docker, Stack.Image, Stack.Init, Stack.ConfigCmd, Stack.Types.Config, Stack.Types.PackageIdentifier, Stack.Types.PackageName, Stack.Docker, Stack.Docker.GlobalDB, Stack.Setup, System.Process.PagerEditor, Stack.Types.Docker, Stack.Dot, Stack.Exec, Stack.FileWatch, Stack.Ghci, Stack.Ide, Stack.Solver, Stack.New, Stack.Types.TemplateName, Stack.Options, Stack.SDist, Stack.Setup.Installed, Stack.Types.BuildPlan, Stack.Types.FlagName, Stack.Types.GhcPkgId, Stack.Types.Image, Stack.Types.Package, Stack.Types.Compiler, Stack.Upgrade, Stack.Upload.
Prelude Data.List Control.Concurrent.Execute> 

Note the Data.List in the module list at the bottom. So I can just go ahead and write a temporary GHCi script for this session and import all modules for the project like this.

[chrisdone]

Pushed this change in b758296. @ruggeri Can you confirm and close?

[mgsloan]

No response + it's been working for me. Closing!