From f1cc339de587ac7897b09d75c0eb79569ea54602 Mon Sep 17 00:00:00 2001
From: Ben Sima <ben@bsima.me>
Date: Fri, 19 Feb 2021 19:38:10 -0500
Subject: Don't blow up when git mtime is empty

---
 Biz/Devalloc.hs | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/Biz/Devalloc.hs b/Biz/Devalloc.hs
index 938a16e..278ca12 100644
--- a/Biz/Devalloc.hs
+++ b/Biz/Devalloc.hs
@@ -1178,7 +1178,7 @@ analyze keep askedBy activeAuthors url bareRepo = do
         { analysisId = mempty,
           stale =
             [ (path, days)
-              | (path, days) <- stalenessMap,
+              | (path, Just days) <- stalenessMap,
                 days > 180
             ],
           score = calculateScore numTotal numBlackholes numLiabilities,
@@ -1220,7 +1220,7 @@ test_calculateScore =
       Test.prop "never < 0" <| \t b l -> calculateScore t b l >= 0
     ]
 
-lastTouched :: FilePath -> FilePath -> IO (FilePath, Int)
+lastTouched :: FilePath -> FilePath -> IO (FilePath, Maybe Int)
 lastTouched bareRepo path = do
   now <- Time.getCurrentTime
   timestamp <-
@@ -1236,10 +1236,10 @@ lastTouched bareRepo path = do
       ]
       ""
       /> filter (/= '\n')
-      -- TODO: this fails if time is empty?
-      /> Time.parseTimeOrError True Time.defaultTimeLocale "%Y-%m-%dT%H:%M:%S%z"
-  let days = round <| Time.diffUTCTime now timestamp / Time.nominalDay
-  pure (path, days)
+      /> Time.parseTimeM True Time.defaultTimeLocale "%Y-%m-%dT%H:%M:%S%z"
+  pure (path, calculateAge now </ timestamp)
+  where
+    calculateAge now n = round <| Time.diffUTCTime now n / Time.nominalDay
 
 -- | Given a git dir and a path inside the git repo, pure a list of tuples
 -- with number of commits and author.
-- 
cgit v1.2.3