Start implementing Distribution.Helper.Discover

1 files changed, 26 insertions, 0 deletions

diff --git a/src/CabalHelper/Compiletime/Compat/Directory.hs b/src/CabalHelper/Compiletime/Compat/Directory.hs
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+++ b/src/CabalHelper/Compiletime/Compat/Directory.hs
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+-- cabal-helper: Simple interface to Cabal's configuration state
+-- Copyright (C) 2019  Daniel Gröber <cabal-helper@dxld.at>
+--
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation, either version 3 of the License, or
+-- (at your option) any later version.
+--
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+{-# LANGUAGE CPP #-}
+module CabalHelper.Compiletime.Compat.Directory where
+
+import System.Directory (getDirectoryContents)
+
+#if !MIN_VERSION_directory(1,2,5)
+listDirectory :: FilePath -> IO [FilePath]
+listDirectory path =
+  filter (\f -> f /= "." && f /= "..") <$> getDirectoryContents path
+#endif