miniwdl-check.yml

# 
# This workflow will run on Pushes and Pull Requests against the main branch. It
# will only run "miniwdl check" on wdl files that have had a change in the push 
# or PR.
#
name: MiniWDL Check
on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

jobs:
  changes:
    name: Check for changes
    runs-on: ubuntu-latest
    outputs:
      # Expose workflows with changes
      workflows: ${{ steps.filter.outputs.wf }}
      workflows_files: ${{ steps.filter.outputs.wf_files }}
    steps:
      # Checkout the repo
      - uses: actions/checkout@v3

      # Select wdl files with changes
      - uses: dorny/paths-filter@v2
        id: filter
        with:
          filters: |
            wf:  
              - 'tasks/**'
              - 'workflows/**'
          list-files: json

  check:
    runs-on: ubuntu-20.04
    name: ${{ matrix.wf }}
    needs: changes
    if: ${{ needs.changes.outputs.workflows != '[]' && needs.changes.outputs.workflows != '' }}
    strategy:
      fail-fast: false
      matrix:
        wf: ${{ fromJson(needs.changes.outputs.workflows_files) }}
    steps:
      # Checkout the repo
      - uses: actions/checkout@v3

      # Install a version of Python3
      - name: Set up Python
        uses: actions/setup-python@v2
        with:
          python-version: "3.x"
      
      # Install MiniWDL (WDL syntax) and ShellCheck (shell syntax)
      - name: install dependencies
        run: |
          sudo apt-get update
          sudo apt-get -y install shellcheck
          pip3 -q install miniwdl 'importlib-metadata==4.13.0'

      # Run MiniWDL check on each of the changed WDLs
      - name: MiniWDL Check ${{ matrix.wf }}
        run: miniwdl check ${{ matrix.wf }}