Handle OSErrors when writing out the title cache

We handle these when reading the file, so we might as well do it here.

1 files changed, 5 insertions, 2 deletions

diff --git a/later b/later
index 59220af..3d43578 100755
--- a/later
+++ b/later
@@ -118,8 +118,11 @@ class TitleMap:
 
         os.makedirs(later_cache_dir, exist_ok=True)
 
-        with open(self.path, "w") as handle:
-            json.dump(self.map, handle)
+        try:
+            with open(self.path, "w") as handle:
+                json.dump(self.map, handle)
+        except OSError as err:
+            sys.exit(f"later: {err}")
 
 
 def entries():