chkHaskTags :: StackTag ()
chkHaskTags = do
  ht <- io $ findExecutable "hasktags"
  case ht of
    Just _p -> return ()
    Nothing -> error "You must have hasktags installed Run 'stack install hasktags'."

--- | Check whether the current version of stack
-- is compatible by trying to run `stack list-depenencies --help`.
chkHaskTags :: StackTag ()
chkHaskTags = do
  ht <- io $ findExecutable "hasktags"
  case ht of
    Just _p -> return ()
    Nothing -> error "You must have hasktags installed Run 'stack install hasktags'."

--- | Check whether the current version of stack
-- is compatible by trying to run `stack list-depenencies --help`.
chkHaskTags = do
  ht <- io $ findExecutable "hasktags"
  case ht of
    Just _p -> return ()
    Nothing -> error "You must have hasktags installed Run 'stack install hasktags'."

--- | Check whether the current version of stack
-- is compatible by trying to run `stack list-depenencies --help`.