From 7e592e1d6ed5e0b25b37215da7558c6324688d6f Mon Sep 17 00:00:00 2001 From: Joey Hess Date: Fri, 22 Nov 2013 11:16:03 -0400 Subject: git-repair (1.20131122) unstable; urgency=low * Added test mode, which can be used to randomly corrupt test repositories, in reproducible ways, which allows easy corruption-driven-development. * Improve repair code in the case where the index file is corrupt, and this hides other problems. * Write a dummy .git/HEAD if the file is missing or corrupt, as git otherwise will not treat the repository as a git repo. * Improve fsck code to find badly corrupted objects that crash git fsck before it can complain about them. * Fixed crashes on bad file encodings. * Can now run 10000 tests (git-repair --test -n 10000 --force) with 0 failures. # imported from the archive --- Utility/Data.hs | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 Utility/Data.hs (limited to 'Utility/Data.hs') diff --git a/Utility/Data.hs b/Utility/Data.hs new file mode 100644 index 0000000..3592582 --- /dev/null +++ b/Utility/Data.hs @@ -0,0 +1,17 @@ +{- utilities for simple data types + - + - Copyright 2013 Joey Hess + - + - Licensed under the GNU GPL version 3 or higher. + -} + +module Utility.Data where + +{- First item in the list that is not Nothing. -} +firstJust :: Eq a => [Maybe a] -> Maybe a +firstJust ms = case dropWhile (== Nothing) ms of + [] -> Nothing + (md:_) -> md + +eitherToMaybe :: Either a b -> Maybe b +eitherToMaybe = either (const Nothing) Just -- cgit v1.2.3