From b75b6be23f5483e2f13bfd9f45f1c1e84a86ca09 Mon Sep 17 00:00:00 2001
From: David Sangrey <rixxan@hullseals.space>
Date: Thu, 3 Aug 2023 17:56:09 -0400
Subject: [PATCH] #1443 Update GitHub Workflow Submodules

---
 .github/workflows/submodule-update.yml | 40 +++++++++++++++++++-------
 1 file changed, 29 insertions(+), 11 deletions(-)

diff --git a/.github/workflows/submodule-update.yml b/.github/workflows/submodule-update.yml
index f047a03f..61b4da3b 100644
--- a/.github/workflows/submodule-update.yml
+++ b/.github/workflows/submodule-update.yml
@@ -1,11 +1,10 @@
----
 name: Submodule Updates
 
 on:
   push:
-    branches: [ develop ]
-  # schedule:
-  # - cron: '0 12 * * *'
+    branches: [develop]
+  schedule:
+    - cron: '0 12 * * *'
 
 jobs:
   check_submodules:
@@ -44,25 +43,44 @@ jobs:
             echo 'changes=false' >> $GITHUB_OUTPUT
           fi
           exit 0
-      
-      - name: Create submodules changes branch
+
+      - name: Create or Update submodules changes branch
         if: steps.check_for_changes.outputs.changes == 'true'
         run: |
-          git checkout -b "submodule-change/$GITHUB_RUN_ID" $CHECKOUT_BRANCH
+          git fetch origin "submodule-change/$GITHUB_RUN_ID" || git checkout -b "submodule-change/$GITHUB_RUN_ID" $CHECKOUT_BRANCH
           git commit -am "updating submodules"
           git push --set-upstream origin "submodule-change/$GITHUB_RUN_ID"
 
-      - name: Create pull request against target branch
+      - name: Create or Update pull request against target branch
         if: steps.check_for_changes.outputs.changes == 'true'
         uses: actions/github-script@v6
         with:
           github-token: "${{ secrets.GITHUB_TOKEN }}"
           script: |
-            await github.rest.pulls.create({
+            const { data: pulls } = await github.rest.pulls.list({
               owner: '${{ github.repository_owner }}',
               repo: '${{ github.repository }}'.split('/')[1].trim(),
               head: 'submodule-change/${{ github.run_id }}',
               base: '${{ env.PR_AGAINST_BRANCH }}',
-              title: `[Auto-generated] Submodule Updates ${process.env.GITHUB_RUN_ID}`,
-              body: '${{ steps.check_for_changes.outputs.changes_text }}',
+              state: 'open',
             });
+            if (pulls.length > 0) {
+              // If an open pull request exists, update it
+              const pull_number = pulls[0].number;
+              await github.rest.pulls.update({
+                owner: '${{ github.repository_owner }}',
+                repo: '${{ github.repository }}'.split('/')[1].trim(),
+                pull_number,
+                body: '${{ steps.check_for_changes.outputs.changes_text }}',
+              });
+            } else {
+              // If no open pull request exists, create a new one
+              await github.rest.pulls.create({
+                owner: '${{ github.repository_owner }}',
+                repo: '${{ github.repository }}'.split('/')[1].trim(),
+                head: 'submodule-change/${{ github.run_id }}',
+                base: '${{ env.PR_AGAINST_BRANCH }}',
+                title: `[Auto-generated] Submodule Updates ${process.env.GITHUB_RUN_ID}`,
+                body: '${{ steps.check_for_changes.outputs.changes_text }}',
+              });
+            }