Add import from command line invocation to command history

Closes #64

src/compiler/GF/Interactive.hs

@@ -38,7 +38,6 @@ import GF.Server(server)
 #endif
 
 import GF.Command.Messages(welcome)
-import GF.Infra.UseIO (Output)
 -- Provides an orphan instance of MonadFail for StateT in ghc versions < 8
 import Control.Monad.Trans.Instances ()
 
@@ -56,6 +55,7 @@ mainGFI opts files = do
 
 shell opts files = flip evalStateT (emptyGFEnv opts) $
                    do mapStateT runSIO $ importInEnv opts files
+                      modify $ \ gfenv0 -> gfenv0 {history = [unwords ("i":files)]}
                       loop
 
 #ifdef SERVER_MODE

src/compiler/GF/Interactive2.hs

@@ -58,6 +58,7 @@ mainGFI opts files = do
 
 shell opts files = flip evalStateT (emptyGFEnv opts) $
                    do mapStateT runSIO $ importInEnv opts files
+                      modify $ \ gfenv0 -> gfenv0 {history = [unwords ("i":files)]}
                       loop
 
 {-

src/compiler/GF/Main.hs

@@ -16,18 +16,19 @@ import Data.Version
 import System.Directory
 import System.Environment (getArgs)
 import System.Exit
-import GF.System.Console (setConsoleEncoding)
+-- import GF.System.Console (setConsoleEncoding)
 
 -- | Run the GF main program, taking arguments from the command line.
 -- (It calls 'setConsoleEncoding' and 'getOptions', then 'mainOpts'.)
 -- Run @gf --help@ for usage info.
 main :: IO ()
 main = do
-  --setConsoleEncoding
+  -- setConsoleEncoding
   uncurry mainOpts =<< getOptions
 
 -- | Get and parse GF command line arguments. Fix relative paths.
 -- Calls 'getArgs' and 'parseOptions'.
+getOptions :: IO (Options, [FilePath])
 getOptions = do
   args <- getArgs
   case parseOptions args of