1 files changed, 9 insertions, 6 deletions
diff --git a/Biz/Lint.hs b/Biz/Lint.hs
index 38c7403..8d5a757 100644
--- a/Biz/Lint.hs
+++ b/Biz/Lint.hs
@@ -87,13 +87,13 @@ printResult r@(NoOp path_) =
     >> pure r
 
 changedFiles :: IO [FilePath]
-changedFiles = mergeBase +> changed
+changedFiles =
+  git ["merge-base", "HEAD", "origin/master"]
+    /> filter (/= '\n')
+    +> (\mb -> git ["diff", "--name-only", "--diff-filter=d", mb])
+    /> String.lines
   where
     git args = Process.readProcess "git" args ""
-    mergeBase = git ["merge-base", "HEAD", "origin/master"] /> filter (/= '\n')
-    changed mb =
-      String.lines
-        </ git ["diff", "--name-only", "--diff-filter=d", mb]
 
 data Linter = Linter
   { exe :: Text,
@@ -126,6 +126,9 @@ pylint =
       fixArgs = Nothing
     }
 
+shellcheck :: Linter
+shellcheck = Linter {exe = "shellcheck", args = [], fixArgs = Nothing}
+
 data Status = Good | Bad String
   deriving (Show)
 
@@ -152,7 +155,7 @@ runOne shouldFix root cwd path_ = results +> traverse_ printResult >> results
             lint shouldFix hlint path_
           ]
         Just (Namespace _ Py) -> [lint shouldFix pylint path_]
-        Just (Namespace _ Sh) -> [pure <| NoOp path_] -- [lint "shellcheck" [] path_]
+        Just (Namespace _ Sh) -> [lint shouldFix shellcheck path_]
         Just (Namespace _ Nix) -> [pure <| NoOp path_]
         Just (Namespace _ Scm) -> [pure <| NoOp path_]
         Just _ -> [pure <. Warn <| "no linter for " <> Text.pack path_]