Drop hex support for now because Data.Hex looks abandoned

kesha.cabal

@@ -2,7 +2,7 @@ cabal-version: >=1.10
 build-type: Simple
 
 name: kesha
-version: 0.1.0
+version: 0.2.0
 synopsis: Compute the cryptographic hash of any path
 description:
    A Haskell library and executable for computing the cryptographic hash of any path.
@@ -19,7 +19,7 @@ extra-source-files:
   README.md
 
 tested-with:
-  GHC ==8.2.2 || ==8.4.4 || ==8.6.5
+  GHC ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.3
 
 source-repository head
   type: git
@@ -42,7 +42,6 @@ library
     cryptohash-sha256,
     directory >= 1.3.1,
     filepath,
-    hex,
     text
 
 executable kesha

src/Kesha.hs

@@ -15,7 +15,6 @@ import qualified Crypto.Hash.SHA256 as SHA256
 import qualified Data.ByteString as BS
 import qualified Data.ByteString.Char8 as ASCII
 import qualified Data.Char as Char
-import qualified Data.Hex as Hex
 import qualified Data.Sequence as Seq
 
 import Data.Bits ((.&.), (.|.), shiftL, shiftR)
@@ -68,16 +67,9 @@ data HashAlgo
 -- Printable hash representations.
 --
 data HashRepr
-  = Hex
-  | Base32
+  = Base32
 
 printNar :: HashAlgo -> HashRepr -> NAR.NAR -> BS.ByteString
-printNar SHA256 Hex
-  = ASCII.map Char.toLower
-  . Hex.hex
-  . SHA256.hash
-  . NAR.dump
-
 printNar SHA256 Base32
   = ASCII.map Char.toLower
   . printHash32 SHA256