mypy.yml

name: Type hinting with mypy
on:
  pull_request:
    branches:
      - master
      - '**dev'
    paths:
      - splink/**
      - tests/**
      - pyproject.toml

jobs:
  mypy:
    runs-on: ubuntu-20.04
    name: Check type hinting with mypy
    steps:
      #----------------------------------------------
      #       check-out repo and set-up python
      #----------------------------------------------
      - name: Check out repository
        uses: actions/checkout@v3
      - name: Set up python
        id: setup-python
        uses: actions/setup-python@v4
        with:
          python-version: 3.9.10
      #----------------------------------------------
      #       set up environment
      #----------------------------------------------
      - name: Load cached Poetry installation
        uses: actions/cache@v2
        with:
          path: ~/.local
          key: poetry-0 
      - name: Install Poetry
        uses: snok/install-poetry@v1
        with:
          version: 1.8.2
          virtualenvs-create: true
          virtualenvs-in-project: true
          installer-parallel: true
      - name: Load cached venv
        id: cached-poetry-dependencies
        uses: actions/cache@v2
        with:
          path: .venv
          key: venv-typehint-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}-00
      - name: Install dependencies
        if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
        run: poetry install --no-interaction --no-root --with=typechecking
      - name: Install library
        run: poetry install --no-interaction
      #----------------------------------------------
      #              run mypy
      #----------------------------------------------
      - name: Run mypy
        run: |
          source .venv/bin/activate
          mypy splink