[OpenXLA-pin-update trigger] Create _openxla_pin_update_weekly.yml (#…

…7108)

add trigger to create new OpenXLA-pin update PR automatically weekly, this is the first draft PR, and there maybe some follow-up change to update due the affect happen after PR merge

.github/workflows/openxla_pin_update_weekly.yml

@@ -0,0 +1,62 @@
+name: Weekly Code Update PR
+on:
+  workflow_dispatch: # Manual trigger
+  # schedule:
+  #   - cron: '0 9 * * 1'  # Each Monday 9:00AM (PDT time)
+
+jobs:
+  update_and_create_pr:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Get current date
+        run: echo "CURRENT_DATE=$(date +'%Y%m%d')" >> $GITHUB_ENV
+
+      - name: Create new branch
+        run: git checkout -b weekly-update-${{ env.CURRENT_DATE }}
+
+      - name: Install sed
+        run: sudo apt-get update && sudo apt-get install -y sed
+
+      - name: Get JAX version for specified date
+        run: |
+          # Here catch jax dev version with hard-code format, where _version is defined ever changes, this will break. 
+          # Contributors who help to update OpenXLA-pin update please check line number here if the JAX version doesn't update.
+          version_line=$(curl -s https://raw.githubusercontent.com/google/jax/main/jax/version.py | sed -n '24p')
+          JAX_VERSION=$(echo "$version_line" | grep -oP '(?<=")[0-9.]+(?=")')
+          if [ -z "$JAX_VERSION" ]; then
+            echo "No JAX release found for ${{ env.CURRENT_DATE }}. Skipping update jax version in automatically status."
+            exit 0
+          fi
+          echo "JAX_VERSION=$JAX_VERSION" >> $GITHUB_ENV
+
+      - name: Update date in setup.py
+        run: |
+          sed -i "s/_date =.*/_date = '${{ env.CURRENT_DATE }}'/" setup.py
+          sed -i "s/_jax_version =.*/_jax_version = f'${{ env.JAX_VERSION }}.dev${{ env.CURRENT_DATE }}'/" setup.py
+          git add setup.py
+
+      - name: Fetch HEAD commit from OpenXLA github repo
+        run: |
+          echo "HEAD_COMMIT=$(git ls-remote https://github.com/openxla/xla.git HEAD | awk '{print $1}')" >> $GITHUB_ENV
+
+      - name: Update OpenXLA commit in WORKSPACE
+        run: |
+          sed -i "s/xla_hash =.*/xla_hash = '${{ env.HEAD_COMMIT }}'/" WORKSPACE
+          git add WORKSPACE
+          git commit -m "Weekly update WORKSPACE with (${{ env.HEAD_COMMIT }})"
+          git push origin HEAD
+
+      - name: Create Pull Request
+        uses: actions/create-pull-request@v4
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          branch: weekly-update-${{ env.CURRENT_DATE }}
+          base: main
+          title: "Weekly Code Update - ${{ env.CURRENT_DATE }}"
+          body: "This PR contains the weekly OpenXLA-pin update at commit: (HEAD commit: ${{ env.HEAD_COMMIT }}), with libtpu version at ${{ env.CURRENT_DATE }}."
+          labels: tpuci
+
+