feat: auto sync forked actions repos

reduce maintenance toil on the ops team

.github/workflows/sync-actions-forks.yml

@@ -0,0 +1,30 @@
+name: sync actions forks
+#REQUIRES PAT WITH REPO(READ,WRITE) ORG(READ) WORKFLOWS(WRITE)
+permissions:
+  contents: write
+on:
+  schedule:
+    - cron: 0 1 * * *
+  workflow_dispatch: {}
+
+jobs:
+  prepare:
+    runs-on: ubuntu-latest
+    if: ${{ startsWith(github.repository, 'GeoNet/') == false }}
+    steps:
+    - name: require GeoNet org
+      run: |
+        exit 1
+  sync-forks:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: sync changes
+        id: sync-changes
+        env:
+          GH_TOKEN: ${{ secrets.GH_CI_USER_TOKEN  }}
+        run: |
+          gh repo list geonet --no-archived --fork --json nameWithOwner --jq '.[].nameWithOwner' \
+          | xargs -I{} gh api -H "Accept: application/vnd.github+json" -H "X-GitHub-Api-Version: 2022-11-28" /repos/{} --template '{{.full_name}},{{.default_branch}}{{"\n"}}' \
+          | xargs -I{} hack/update-forks.sh {}
+        shell: bash

hack/update-forks.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+REPO=$(echo "$1" | cut -d, -f1)
+BRANCH=$(echo "$1" | cut -d, -f2)
+gh api --method POST -H "Accept: application/vnd.github+json" -H "X-GitHub-Api-Version: 2022-11-28" -f branch="$BRANCH" "/repos/$REPO/merge-upstream"