Create run.yml

.github/workflows/run.yml

@@ -0,0 +1,26 @@
+name: Sync and merge upstream repository
+on:
+  workflow_dispatch:
+  schedule: 
+  - cron: "5 * * * *" #Runs at 8:00 UTC(5:00 in Korea) every day.
+
+jobs:
+  merge:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Merge upstream
+        run: |
+          git config --global user.name 'arkingco'
+          git config --global user.email 'arkingco@gmail.com'
+          # "git checkout master" is unnecessary, already here by default
+          git pull --unshallow  # this option is very important, you would get
+                                # complains about unrelated histories without it.
+                                # (but actions/checkout@v2 can also be instructed
+                                # to fetch all git depth right from the start)
+          git remote add upstream https://github.com/RollingPaper42/Front-End.git
+          git fetch upstream
+          git checkout main
+          git merge -Xtheirs upstream/main
+          git push origin main
+          # etc