From c13617684eb10fc622cc502249591002e2f7d74c Mon Sep 17 00:00:00 2001
From: Tom Smeding <tom@tomsmeding.com>
Date: Sun, 25 Feb 2024 21:04:03 +0100
Subject: Separate out library

---
 app/Main.hs       | 28 ++++++++++++++++++++++++++++
 hie.yaml          |  5 +++++
 hs-visinter.cabal | 15 ++++++++++++---
 src/Main.hs       | 28 ----------------------------
 4 files changed, 45 insertions(+), 31 deletions(-)
 create mode 100644 app/Main.hs
 delete mode 100644 src/Main.hs

diff --git a/app/Main.hs b/app/Main.hs
new file mode 100644
index 0000000..b88d508
--- /dev/null
+++ b/app/Main.hs
@@ -0,0 +1,28 @@
+{-# LANGUAGE LambdaCase #-}
+{-# LANGUAGE TupleSections #-}
+module Main where
+
+import Data.List (intersperse)
+import System.Environment (getArgs)
+import System.Exit (die, exitFailure)
+
+import HSVIS.Parser
+
+
+main :: IO ()
+main = do
+  (source, fname) <- getArgs >>= \case
+    [] -> (,"<stdin>") <$> getContents
+    [fname] -> (,fname) <$> readFile fname
+    _ -> die "Usage: hs-visinter [filename.hs]"
+
+  prog <- case parse fname source of
+    This errs -> do
+      sequence_ $ intersperse (putStrLn "") (map (putStrLn . printErrMsg) errs)
+      exitFailure
+    These errs res -> do
+      sequence_ $ intersperse (putStrLn "") (map (putStrLn . printErrMsg) errs)
+      return res
+    That res -> return res
+
+  print prog
diff --git a/hie.yaml b/hie.yaml
index 9e856b5..ae8c4c0 100644
--- a/hie.yaml
+++ b/hie.yaml
@@ -1,6 +1,11 @@
 cradle:
   multi:
     - path: "./src"
+      config:
+        cradle:
+          cabal:
+            component: "lib:hs-visinter"
+    - path: "./app"
       config:
         cradle:
           cabal:
diff --git a/hs-visinter.cabal b/hs-visinter.cabal
index 181d112..748355d 100644
--- a/hs-visinter.cabal
+++ b/hs-visinter.cabal
@@ -7,9 +7,8 @@ author:              Tom Smeding
 maintainer:          tom@tomsmeding.com
 build-type:          Simple
 
-executable hs-visinter
-  main-is:             Main.hs
-  other-modules:
+library
+  exposed-modules:
     Control.FAlternative
     HSVIS.AST
     HSVIS.Parser
@@ -23,3 +22,13 @@ executable hs-visinter
   hs-source-dirs: src
   default-language: Haskell2010
   ghc-options: -Wall -threaded
+
+executable hs-visinter
+  main-is: Main.hs
+  other-modules:
+  build-depends:
+    base,
+    hs-visinter
+  hs-source-dirs: app
+  default-language: Haskell2010
+  ghc-options: -Wall -threaded
diff --git a/src/Main.hs b/src/Main.hs
deleted file mode 100644
index 750f749..0000000
--- a/src/Main.hs
+++ /dev/null
@@ -1,28 +0,0 @@
-{-# LANGUAGE LambdaCase #-}
-{-# LANGUAGE TupleSections #-}
-module Main where
-
-import Data.List (intersperse)
-import System.Environment (getArgs)
-import System.Exit (die, exitFailure)
-
-import Parser
-
-
-main :: IO ()
-main = do
-  (source, fname) <- getArgs >>= \case
-    [] -> (,"<stdin>") <$> getContents
-    [fname] -> (,fname) <$> readFile fname
-    _ -> die "Usage: hs-visinter [filename.hs]"
-
-  prog <- case parse fname source of
-    This errs -> do
-        sequence_ $ intersperse (putStrLn "") (map (putStrLn . printErrMsg) errs)
-        exitFailure
-    These errs res -> do
-        sequence_ $ intersperse (putStrLn "") (map (putStrLn . printErrMsg) errs)
-        return res
-    That res -> return res
-
-  print prog
-- 
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