a year went byHEADmain

This does many meta-things, but changes no functionality:
 - get rid of stack, and use just cabal with a stackage snapshot instead
   (why did I ever think stack was a good idea?)
 - update the stackage snapshot to something halfway recent
 - thus making builds work on nixpkgs-23.05 (current stable)
 - separating out packages into their own cabal files
 - use the GHC2021 set of extensions as default
 - very slight code changes to make things build again
 - update readme accordingly
 - stylish-haskell run

1 files changed, 17 insertions, 0 deletions

diff --git a/walint-cli/Version.hs b/walint-cli/Version.hs
new file mode 100644
index 0000000..1748512
--- /dev/null
+++ b/walint-cli/Version.hs
@@ -0,0 +1,17 @@
+{-# LANGUAGE TemplateHaskell #-}
+
+
+module Version ( version ) where
+
+import           Universum
+
+import qualified Language.Haskell.TH as TH
+import           System.Process      (readProcess)
+
+version :: String
+version = "walint generic 2022 (" <>
+    $(do
+        hash <- liftIO $ catchAny (readProcess "git" ["rev-parse", "HEAD"] "")
+                         (\_ -> pure "[unknown]")
+        pure . TH.LitE . TH.StringL $ take 40 hash) ++
+    ")"