Github actions not including variable-CodePudding

I have a github actions workflow like this:

name: Print test type
on: [push]
jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        test_type: ['test-alpha', 'test-beta']
        os: [ubuntu-latest]
        python-version: ['3.7', '3.9']
        include:
        - os: windows-latest
          python-version: '3.8'
    runs-on: ${{ matrix.os }}
    steps:
    - name: Print Alpha
      if: ${{ matrix.test_type == 'test-alpha'}}
      run: echo "test type is alpha. the os name is ${{ runner.os }}"
    - name: Print Beta
      if: ${{ matrix.test_type == 'test-beta'}}
      run: echo "test type is beta. the os name is ${{ runner.os }}"

When I run this workflow, the windows CI starts and completes but it is not showing any output. In particular, the if statements are not getting executed. Am I missing some point here? Because when I include the test-type in matrix, I expect to also see windows X py3.8 X {alpha, beta} combination in workflow.

In the ubuntu CI, it works fine - getting executed for all combinations in the matrix (ubuntu X {py3.7,py3.9} X {alpha,beta}.)

CodePudding user response：

The include method does not work here because Github tries to extend the already existing run configurations. If this does not work (which is the case here), then a new configuration is created for each include. (For more information: https://docs.github.com/en/actions/using-jobs/using-a-matrix-for-your-jobs#expanding-or-adding-matrix-configurations)

In your case, however, the new created configurations do not contain a specified test-type. Now there are two possibilities. Either add the test-type manually:

name: Print test type
on: [push]
jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        test_type: ['test-alpha', 'test-beta']
        os: [ubuntu-latest]
        python-version: ['3.7', '3.9']
        include:
        - os: windows-latest
          python-version: '3.8'
          test_type: 'test-alpha'
        - os: windows-latest
          python-version: '3.8'
          test_type: 'test-beta'
    runs-on: ${{ matrix.os }}
    steps:
    - name: Print Alpha
      if: ${{ matrix.test_type == 'test-alpha'}}
      run: echo "test type is alpha. the os name is ${{ runner.os }}"
    - name: Print Beta
      if: ${{ matrix.test_type == 'test-beta'}}
      run: echo "test type is beta. the os name is ${{ runner.os }}"

or remove the unwanted combinations:

name: Print test type
on: [push]
jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        test_type: ['test-alpha', 'test-beta']
        os: [ubuntu-latest, windows-latest]
        python-version: ['3.7', '3.8', '3.9']
        exclude:
        - os: windows-latest
          python-version: '3.7'
        - os: windows-latest
          python-version: '3.9'
        - os: ubuntu-latest
          python-version: '3.8'
    runs-on: ${{ matrix.os }}
    steps:
    - name: Print Alpha
      if: ${{ matrix.test_type == 'test-alpha'}}
      run: echo "test type is alpha. the os name is ${{ runner.os }}"
    - name: Print Beta
      if: ${{ matrix.test_type == 'test-beta'}}
      run: echo "test type is beta. the os name is ${{ runner.os }}"