Add stale bot configuration.

diff --git a/.github/stale.yml b/.github/stale.yml
new file mode 100644 (file)
index 0000000..ddcc87b
--- /dev/null
+++ b/.github/stale.yml
@@ -0,0 +1,21 @@
+# Configuration for probot-stale - https://github.com/probot/stale
+# Number of days of inactivity before an issue becomes stale
+daysUntilStale: 60
+# Number of days of inactivity before a stale issue is closed
+daysUntilClose: 7
+# Issues with these labels will never be considered stale
+exemptLabels:
+  - rfc
+  - security
+  - pinned
+# Label to use when marking an issue as stale
+staleLabel: stale
+# Comment to post when marking an issue as stale. Set to `false` to disable
+markComment: >
+  This issue has been automatically marked as stale because it has not had
+  activity within the last 60 days. It will be closed after 7 days if no
+  further activity occurs. Thank you for your contributions.
+# Comment to post when closing a stale issue. Set to `false` to disable
+closeComment: >
+  This issue has been automatically closed because it has not had activity
+  since it was marked as stale. Thank you for your contributions.