From b60508539ebcf437c28258601a2a50e134f91cd0 Mon Sep 17 00:00:00 2001
From: Johan Haals <johan.haals@gmail.com>
Date: Fri, 29 Apr 2022 10:04:33 +0200
Subject: [PATCH] gh actions: Approve renovate lock file changes

Signed-off-by: Johan Haals <johan.haals@gmail.com>
---
 .../workflows/sync_approve_renovate_pr.yaml   | 42 +++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 .github/workflows/sync_approve_renovate_pr.yaml

diff --git a/.github/workflows/sync_approve_renovate_pr.yaml b/.github/workflows/sync_approve_renovate_pr.yaml
new file mode 100644
index 0000000000..d1cb50d9ea
--- /dev/null
+++ b/.github/workflows/sync_approve_renovate_pr.yaml
@@ -0,0 +1,42 @@
+name: Approve renovate lock file changes
+on:
+  pull_request_target:
+    paths:
+      - '.github/workflows/sync_renovate-changesets.yml'
+      - '**/yarn.lock'
+
+jobs:
+  generate-changeset:
+    runs-on: ubuntu-latest
+    if: github.actor == 'renovate[bot]' && github.repository == 'backstage/backstage'
+    steps:
+      - name: Approve
+        uses: actions/github-script@v6
+        with:
+          github-token: ${{ secrets.GH_SERVICE_ACCOUNT_TOKEN }}
+          script: |
+            const owner = 'backstage';
+            const repo = 'backstage';
+
+            if (context.payload.pull_request.changed_files !== 1) {
+              console.log('Skipping approval because multiple files are changed in this PR');
+              return;
+            }
+
+            const r = await octokit.rest.pulls.listFiles({
+              owner,
+              repo,
+              pull_number: context.issue.number,
+            });
+            
+            if (r.data.every((f) => f.filename.endsWith("yarn.lock"))) {
+              console.log('skipping approval since some files are not yarn.lock');
+              return;
+            }
+
+            await github.rest.pulls.createReview({
+              owner,
+              repo,
+              pull_number: context.issue.number,
+              event: 'APPROVE'
+            })