Add workflow to auto create uplift PR (#935)

Add workflow to auto create uplift PR

.github/workflows/nightly-uplift.yml

@@ -0,0 +1,64 @@
+# This workflow automates creation of uplift pull requests.
+# Uplift PR is created daily to uplift the submodule to the latest version.
+
+name: Nighty Uplift
+
+on:
+  schedule:
+    - cron: '0 8 * * *'  # Runs at 08:00 UTC every day
+  workflow_dispatch:  # Manual trigger
+
+jobs:
+  uplift-pr:
+    runs-on: ubuntu-latest
+
+    env:
+      SUBMODULE_PATH: third_party/tt-metal
+      TT_METAL_VERSION: origin/main
+
+    steps:
+
+      - uses: actions/checkout@v4
+
+      - name: Set env variable
+        run: |
+          echo "TODAY=$(date +'%Y-%m-%d')" >> $GITHUB_ENV
+
+      - name: Update tt-metal reference
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+            # Fetch the latest SHA using GitHub CLI
+            LATEST_SHA=$(gh api repos/tenstorrent/tt-metal/commits/main --jq '.sha')
+            # Update the third_party/CMakeLists.txt file with the new SHA
+            sed -i "s/set(TT_METAL_VERSION \".*\")/set(TT_METAL_VERSION \"${LATEST_SHA}\")/" third_party/CMakeLists.txt
+
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v7
+        id: create-pr
+        with:
+          branch: uplift
+          committer: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
+          author: ${{ github.actor }} <${{ github.actor_id }}+${{ github.actor }}@users.noreply.github.com>
+          base: main
+          commit-message: "Uplift ${{ env.SUBMODULE_PATH }} to ${{ env.SUBMODULE_VERSION }} ${{ env.TODAY }}"
+          title: "Uplift ${{ env.SUBMODULE_PATH }} to ${{ env.SUBMODULE_VERSION }} ${{ env.TODAY }}"
+          body: "This PR uplifts the ${{ env.SUBMODULE_PATH }} to the ${{ env.SUBMODULE_VERSION }}"
+          labels: uplift
+          delete-branch: true
+          token: ${{ secrets.GH_TOKEN }}
+
+      - name: Approve Pull Request
+        if: ${{ steps.create-pr.outputs.pull-request-number }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GH_APPROVE_TOKEN }}
+        run: |
+          echo "Pull Request Number - ${{ steps.create-pr.outputs.pull-request-number }}"
+          echo "Pull Request URL - ${{ steps.create-pr.outputs.pull-request-url }}"
+          gh pr review ${{ steps.create-pr.outputs.pull-request-number }} --approve
+
+      - name: Enable Pull Request Automerge
+        if: ${{ steps.create-pr.outputs.pull-request-number }}
+        run: gh pr merge --squash --auto "${{ steps.create-pr.outputs.pull-request-number }}"
+        env:
+          GH_TOKEN: ${{ secrets.GH_TOKEN }}

third_party/CMakeLists.txt

@@ -1,5 +1,7 @@
 include(ExternalProject)
 
+set(TT_METAL_VERSION "047cdd97fa26b229208ce2f6f8b149c3df277be0")
+
 if ("$ENV{ARCH_NAME}" STREQUAL "grayskull")
   set(ARCH_NAME "grayskull")
   set(ARCH_EXTRA_DIR "grayskull")
@@ -56,7 +58,7 @@ ExternalProject_Add(
     -DENABLE_TRACY=${TT_RUNTIME_ENABLE_PERF_TRACE}
     -DENABLE_LIBCXX=OFF
   GIT_REPOSITORY https://github.com/tenstorrent/tt-metal.git
-  GIT_TAG 047cdd97fa26b229208ce2f6f8b149c3df277be0
+  GIT_TAG ${TT_METAL_VERSION}
   GIT_PROGRESS ON
   BUILD_BYPRODUCTS ${TTNN_LIBRARY_PATH} ${TTMETAL_LIBRARY_PATH} ${TRACY_LIBRARY_PATH}
 )