RollPyTorch.yml

# yamllint disable rule:line-length
name: Roll PyTorch

on:
  schedule:
    - cron: '0 13 * * *'
  workflow_dispatch:

jobs:
  build_linux:
    name: Manylinux Build
    runs-on: torch-mlir-cpubuilder-manylinux-x86-64

    # Don't run this in everyone's forks.
    if: github.repository == 'llvm/torch-mlir'

    steps:
      - name: Prepare workspace
        run: |
          # Clear the workspace directory so that we don't run into errors about
          # existing lock files.
          sudo rm -rf $GITHUB_WORKSPACE/*

      - name: Get torch-mlir
        uses: actions/checkout@v3
        with:
          submodules: 'false'
          token: ${{ secrets.WORKFLOW_INVOCATION_TOKEN }}

      - name: Get LLVM and StableHlo submodules
        run: |
          set -eo pipefail
          cd ${GITHUB_WORKSPACE}

          # Fetching the submodules concurrently may cause problems, so we fetch
          # them one after another.
          rm -f .git/modules/externals/llvm-project/index.lock
          rm -f .git/modules/externals/stablehlo/index.lock
          git submodule update --init --recursive externals/llvm-project
          git submodule update --init --recursive externals/stablehlo

      - name: Setup ccache
        uses: ./.github/actions/setup-build
        with:
          cache-suffix: 'rollPyTorch'

      - name: Determine nightly PyTorch version
        run: |
          set -eo pipefail

          cd ${GITHUB_WORKSPACE}
          python -m pip install wheel
          sudo apt-get install unzip

          # Fetch the most recent nightly torchvision release
          VISION_RELEASE=$(python -m pip index versions -f https://download.pytorch.org/whl/nightly/cpu/torch_nightly.html --pre torchvision | grep "Available versions" | tr ' ' '\n' | grep "^[0-9]" | sort --version-sort --reverse | head -n1 | tr -d ',' | sed 's/\([^+]*\).*/\1/')
          echo "Found torchvision release ${VISION_RELEASE}"

          # Fetch the whl file associated with the nightly torchvision release
          rm -f torch*.whl
          python -m pip download -f https://download.pytorch.org/whl/nightly/cpu/torch_nightly.html --pre "torchvision==${VISION_RELEASE}"

          # Downloading the torchvision WHL also downloads the PyTorch WHL file
          # Read the version from the downloaded whl file without extracting it
          PT_RELEASE=$(unzip -p torch-*.whl 'torch-*/METADATA' | grep "^Version:" | awk '{ print $2 }' | sed 's/\([^+]*\).*/\1/')
          echo "Found torch release ${PT_RELEASE}"
          printf -- "-f https://download.pytorch.org/whl/nightly/cpu/torch_nightly.html\n--pre\ntorch==%s\n" "${PT_RELEASE}" > pytorch-requirements.txt
          printf -- "-f https://download.pytorch.org/whl/nightly/cpu/torch_nightly.html\n--pre\ntorchvision==%s\n" "${VISION_RELEASE}" > torchvision-requirements.txt

          # Read the commit hash from the downloaded whl file without extracting it
          PT_HASH=$(unzip -p torch-"${PT_RELEASE}"*.whl torch/version.py | grep git_version | tail -1 | awk '{ print $3 }' | tr -d "'")
          echo "Found torch commit hash ${PT_HASH}"

          PT_HASH_CHANGED=0
          echo "${PT_HASH}" | cmp - pytorch-hash.txt --quiet || PT_HASH_CHANGED=$?
          echo "${PT_HASH}" > pytorch-hash.txt
          rm torch-"${PT_RELEASE}"*.whl

          # Write the release and hash to the environment file so that we can
          # retrieve them when creating a PR
          echo "PT_HASH=${PT_HASH}" >> ${GITHUB_ENV}
          echo "PT_RELEASE=${PT_RELEASE}" >> ${GITHUB_ENV}
          echo "PTVISION_RELEASE=${VISION_RELEASE}" >> ${GITHUB_ENV}
          echo "PT_HASH_CHANGED=${PT_HASH_CHANGED}" >> ${GITHUB_ENV}

      - name: Build and test (out-of-tree), also update ODS and abstract interpretation library
        if: env.PT_HASH_CHANGED != '0'
        run: |
          cd ${GITHUB_WORKSPACE}
          TM_PACKAGES="out-of-tree" TM_USE_PYTORCH_BINARY="OFF" \
          TORCH_MLIR_SRC_PYTORCH_BRANCH="${{ env.PT_HASH }}" \
          TORCH_MLIR_SRC_PYTORCH_RELEASE="${{ env.PT_RELEASE }}" \
          TM_UPDATE_ODS_AND_ABSTRACT_INTERP_LIB="ON" \
          ./build_tools/python_deploy/build_linux_packages.sh

      - name: Post issue comment on build failure
        if: failure()
        uses: peter-evans/create-or-update-comment@v2
        with:
          issue-number: 1690
          body: |
            The RollPyTorch action has failed.  See [CI log](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}) for details.

            The following information may come handy when fixing the code.
            ```
            torch version: ${{ env.PT_RELEASE }}
            torch commit hash: ${{ env.PT_HASH }}
            torchvision version: ${{ env.PTVISION_RELEASE }}
            ```

      - name: Update PyTorch Build Cache (if running on main branch)
        if: github.ref_name == 'main'
        id: cache-pytorch
        uses: actions/cache@v3
        with:
          path: ${{ github.workspace }}/build_tools/python_deploy/wheelhouse
          key: ${{ runner.os }}-pytorch-${{ env.PT_HASH }}

      - name: Commit changes locally
        if: env.PT_HASH_CHANGED != '0'
        run: |
          cd ${GITHUB_WORKSPACE}
          git config user.email "torch-mlir@users.noreply.github.com"
          git config user.name "Roll PyTorch Action"
          git fetch --recurse-submodules=no
          git checkout main
          git pull origin main

      - name: Create pull request
        uses: peter-evans/create-pull-request@v5.0.1
        with:
          author: Roll PyTorch Action <torch-mlir@users.noreply.github.com>
          branch: rollpytorch
          body: |
            torch version: ${{ env.PT_RELEASE }}
            torch commit hash: ${{ env.PT_HASH }}
            torchvision version: ${{ env.PTVISION_RELEASE }}
          commit-message: |
            update PyTorch version to ${{ env.PT_RELEASE }}

            - torch version: ${{ env.PT_RELEASE }}
            - torch commit hash: ${{ env.PT_HASH }}
            - torchvision version: ${{ env.PTVISION_RELEASE }}
          committer: Roll PyTorch Action <torch-mlir@users.noreply.github.com>
          title: update PyTorch version to ${{ env.PT_RELEASE }}
          token: ${{ secrets.ROLLPYTORCH_TOKEN0 }}