Add probot/stale config to close stable issues.

Let's try out this bot. See https://probot.github.io/apps/stale/ and https://github.com/probot/stale. Also used by spotify/luigi and spotify/pythonflow.
spotify · Sep 10, 2018 · cf5ab61 · cf5ab61
1 parent d6f6e63
commit cf5ab61
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/.github/stale.yml b/.github/stale.yml
@@ -0,0 +1,12 @@
+daysUntilStale: 60
+daysUntilClose: 7
+exemptLabels:
+  - pinned
+  - security
+staleLabel: closed-stale
+markComment: >
+  This issue has been automatically marked as stale because it has not had
+  recent activity. It will be closed if no further activity occurs. Thank you
+  for your contributions.
+closeComment: false
+only: issues