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Run test suite workflow (patrick-kidger/torchcde)

The Run test suite workflow from patrick-kidger/torchcde, explained and optimized by Latchkey.

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Source: patrick-kidger/torchcde.github/workflows/run_tests.yamlLicense Apache-2.0View source

What it does

This is the Run test suite workflow from the patrick-kidger/torchcde repository, a real project running GitHub Actions. It is shown here with attribution under its Apache-2.0 license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

workflow (.yml)
name: Run test suite
on: [pull_request]

jobs:
  check_version:
    strategy:
      matrix:
        python-version: [ 3.8 ]
        os: [ ubuntu-latest ]
    runs-on: ${{ matrix.os }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v2
        with:
          python-version: ${{ matrix.python-version }}

      - name: Check version
        run: |
          python -m pip install --upgrade pip
          pip install git+https://github.com/patrick-kidger/torchcde.git
          master_info=$(pip list | grep torchcde)
          master_version=$(echo ${master_info} | cut -d " " -f2)
          pip uninstall -y torchcde
          python setup.py install
          pr_info=$(pip list | grep torchcde)
          pr_version=$(echo ${pr_info} | cut -d " " -f2)
          python -c "import itertools as it;
          import sys;
          master_version = sys.argv[1];
          pr_version = sys.argv[2];
          master_version_ = [int(i) for i in master_version.split('.')];
          pr_version_ = [int(i) for i in pr_version.split('.')];
          master_version__ = tuple(m for p, m in it.zip_longest(pr_version_, master_version_, fillvalue=0));
          pr_version__ = tuple(p for p, m in it.zip_longest(pr_version_, master_version_, fillvalue=0));
          sys.exit(pr_version__ <= master_version__)" ${master_version} ${pr_version}

  test:
    needs: [ check_version ]
    strategy:
      matrix:
        python-version: [ 3.6, 3.8 ]
        os: [ ubuntu-latest, macOS-latest, windows-latest ]
      fail-fast: false
    runs-on: ${{ matrix.os }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v2
        with:
          python-version: ${{ matrix.python-version }}

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          python -m pip install flake8 pytest
          
      - name: Install torchcde
        run: |
          python -m pip install torch==1.9.0
          python setup.py install
          
      - name: Install Signatory
        if: matrix.os != 'macos-latest'
        shell: bash
        run: |
          signatory_version=$(python -c "import re
          import subprocess
          version_msg = subprocess.run('pip install --use-deprecated=legacy-resolver signatory==', shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
          version_re = re.compile(rb'from versions: ([0-9\. ,]*)\)')
          last_version = version_re.search(version_msg.stderr).group(1).split(b', ')[-1].decode('utf-8').split('.')
          assert len(last_version) == 6
          last_version = '.'.join(last_version[:3])
          print(last_version)")
          torch_info=$(pip list | grep '^torch ')
          torch_version=$(echo ${torch_info} | cut -d " " -f2)
          python -m pip install signatory==${signatory_version}.${torch_version}

      - name: Lint with flake8
        run: |
          python -m flake8 .

      - name: Test with pytest
        run: |
          python -m pytest

The same workflow, on Latchkey

Estimated ~20% faster on cache hits, plus fewer wasted runs and a safer supply chain. Added and changed lines are highlighted.

name: Run test suite
on: [pull_request]
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  check_version:
    timeout-minutes: 30
    strategy:
      matrix:
        python-version: [ 3.8 ]
        os: [ ubuntu-latest ]
    runs-on: ${{ matrix.os }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
 
      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v2
        with:
          cache: 'pip'
          python-version: ${{ matrix.python-version }}
 
      - name: Check version
        run: |
          python -m pip install --upgrade pip
          pip install git+https://github.com/patrick-kidger/torchcde.git
          master_info=$(pip list | grep torchcde)
          master_version=$(echo ${master_info} | cut -d " " -f2)
          pip uninstall -y torchcde
          python setup.py install
          pr_info=$(pip list | grep torchcde)
          pr_version=$(echo ${pr_info} | cut -d " " -f2)
          python -c "import itertools as it;
          import sys;
          master_version = sys.argv[1];
          pr_version = sys.argv[2];
          master_version_ = [int(i) for i in master_version.split('.')];
          pr_version_ = [int(i) for i in pr_version.split('.')];
          master_version__ = tuple(m for p, m in it.zip_longest(pr_version_, master_version_, fillvalue=0));
          pr_version__ = tuple(p for p, m in it.zip_longest(pr_version_, master_version_, fillvalue=0));
          sys.exit(pr_version__ <= master_version__)" ${master_version} ${pr_version}
 
  test:
    timeout-minutes: 30
    needs: [ check_version ]
    strategy:
      matrix:
        python-version: [ 3.6, 3.8 ]
        os: [ ubuntu-latest, macOS-latest, windows-latest ]
      fail-fast: false
    runs-on: ${{ matrix.os }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
 
      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v2
        with:
          cache: 'pip'
          python-version: ${{ matrix.python-version }}
 
      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          python -m pip install flake8 pytest
          
      - name: Install torchcde
        run: |
          python -m pip install torch==1.9.0
          python setup.py install
          
      - name: Install Signatory
        if: matrix.os != 'macos-latest'
        shell: bash
        run: |
          signatory_version=$(python -c "import re
          import subprocess
          version_msg = subprocess.run('pip install --use-deprecated=legacy-resolver signatory==', shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
          version_re = re.compile(rb'from versions: ([0-9\. ,]*)\)')
          last_version = version_re.search(version_msg.stderr).group(1).split(b', ')[-1].decode('utf-8').split('.')
          assert len(last_version) == 6
          last_version = '.'.join(last_version[:3])
          print(last_version)")
          torch_info=$(pip list | grep '^torch ')
          torch_version=$(echo ${torch_info} | cut -d " " -f2)
          python -m pip install signatory==${signatory_version}.${torch_version}
 
      - name: Lint with flake8
        run: |
          python -m flake8 .
 
      - name: Test with pytest
        run: |
          python -m pytest
 

What changed

What Latchkey heals here

This workflow has steps that commonly fail on transient issues (network, registries, flaky browsers). On Latchkey managed runners they are detected, retried, and self-healed instead of failing your build:

This workflow runs 2 jobs (7 with the matrix expanded) per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow