upstream pretest.yaml

name: Upstream pretest

on:
    push:
    schedule:
        - cron: '0 0 * * *'
    workflow_dispatch:
    
#concurrency:
#    group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
#    cancel-in-progress: false
#    
permissions:
    contents: write
    
jobs:
    enmr-PRs:
        runs-on: windows-latest
        
        steps:
            - uses: actions/checkout@main
            
            - run: |
            
                $subm_init_lines = git submodule init
                $subm_init_lines | Out-Host
                
                foreach ($subm_init_line in $subm_init_lines) {
                    Write-Host 'subm_init_line:' $subm_init_line
                    if ($subm_init_line -notmatch '^Submodule ''(.+)'' ') { throw $subm_init_line }
                    Write-Host ($subm_path = $Matches[1])
                    Push-Location $subm_path
                    
                    git config --add remote.origin.fetch "+refs/pull/*/merge:refs/remotes/origin/pr/*"
                    
                    git fetch --dry-run origin
                    
                    Pop-Location
                }