nightly-uplift.yml

# 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 6 * * *'  # Runs at 06:00 UTC every day
  workflow_dispatch:  # Manual trigger

jobs:
  uplift-pr:
    runs-on: ubuntu-latest

    env:
      TT_MLIR_SUBMODULE_PATH: third_party/tt-mlir

    steps:
      - uses: actions/checkout@v4
        with:
          submodules: recursive
          fetch-depth: 0
          ref: main

      - name: Set env variable for today's date
        run: |
          echo "TODAY=$(date +'%Y-%m-%d')" >> $GITHUB_ENV

      - name: Fetch latest SHA of tt-mlir submodule
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          LATEST_TT_MLIR_VERSION=$(gh api repos/tenstorrent/tt-mlir/commits/main --jq '.sha')
          echo "LATEST_TT_MLIR_VERSION=$LATEST_TT_MLIR_VERSION" >> $GITHUB_ENV

      - name: Update tt-mlir reference in third_party/CMakeLists.txt
        run: |
          echo "Updating tt-mlir to SHA: $LATEST_TT_MLIR_VERSION"
          sed -i "s/set(TT_MLIR_VERSION \".*\")/set(TT_MLIR_VERSION \"${LATEST_TT_MLIR_VERSION}\")/" 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.TT_MLIR_SUBMODULE_PATH }} to ${{ env.LATEST_TT_MLIR_VERSION }} ${{ env.TODAY }}"
          title: "Uplift ${{ env.TT_MLIR_SUBMODULE_PATH }} to ${{ env.LATEST_TT_MLIR_VERSION }} ${{ env.TODAY }}"
          body: "This PR uplifts the ${{ env.TT_MLIR_SUBMODULE_PATH }} to the ${{ env.LATEST_TT_MLIR_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 }}