update check-status method

src/functions/check-status.js

@@ -9,6 +9,8 @@ export async function checkStatus(
   mustBeApproved
 ) {
   let statusOK = true
+
+  // If we are running in a mode that checks for passing CI or approved PRs, then we need to check the status of the PR
   if (mustBeGreen || mustBeApproved) {
     core.info('Checking green status: ' + branch)
     const stateQuery = `query($owner: String!, $repo: String!, $pull_number: Int!) {
@@ -36,17 +38,23 @@ export async function checkStatus(
 
     // Check for CI status
     if (mustBeGreen) {
-      const [{commit}] = result.repository.pullRequest.commits.nodes
-      if (commit.statusCheckRollup) {
+      const [{commit}] = result?.repository?.pullRequest?.commits?.nodes
+
+      // If CI checks have been defined for the given pull request / commit
+      if (commit?.statusCheckRollup) {
         const state = commit.statusCheckRollup.state
         core.info('Validating status: ' + state)
         if (state !== 'SUCCESS') {
           core.info('Discarding ' + branch + ' with status ' + state)
           statusOK = false
         }
+
+        // If no CI checks have been defined for the given pull request / commit
       } else {
-        core.info('No status check associated with branch: ' + branch)
-        statusOK = false
+        core.info('No status check(s) associated with branch: ' + branch)
+        core.debug(
+          'If no checks have been defined, then we default to success for CI checks'
+        )
       }
     }
 
@@ -67,5 +75,6 @@ export async function checkStatus(
       }
     }
   }
+
   return statusOK
 }