Clean up

action.yml

@@ -13,7 +13,7 @@ inputs:
     description: 'The number of days old an issue can be before marking it stale'
     default: 60
   days-before-close:
-    description: 'The number of days to wait to close an issue or pull request after it being marked stale'
+    description: 'The number of days to wait to close an issue or pull request after it being marked stale. Set to -1 to never close stale issues.'
     default: 7
   stale-issue-label:
     description: 'The label to apply when an issue is stale'

src/main.ts

@@ -66,7 +66,7 @@ async function processIssues(
     if (exemptLabel && isLabeled(issue, exemptLabel)) {
       continue;
     } else if (isLabeled(issue, staleLabel)) {
-      if (wasLastUpdatedBefore(issue, args.daysBeforeClose)) {
+      if (args.daysBeforeClose >= 0 && wasLastUpdatedBefore(issue, args.daysBeforeClose)) {
         operationsLeft -= await closeIssue(client, issue);
       } else {
         continue;