Run Windows Tests in GitHub Actions

[w0rp]

I don't think anyone but me really knows how to run the tests on Windows locally, and even then it kind of sucks and doesn't work so well. We should create an easy to use test image for running tests on Windows locally. Whether it's some Docker like thing, a ReactOS pre-built ISO, or whatever.

With this in place, we can consider getting rid of AppVeyor again.

[w0rp]

FYI @hsanson

[w0rp]

I tried this again, but Windows tests in GitHub actions are just far, far too slow. I gave up after waiting for twice the speed at which AppVeyor builds for tests to finish running. I'll post the YAML config I ended up with before I gave up below.

  test_ale_windows:
    runs-on: windows-2019
    steps:
      - name: Configure Git
        # Stop git from changing newlines
        run: git config --global core.autocrlf input
      - uses: actions/checkout@v4
      - name: Cache Vim
        id: cache-vim
        uses: actions/cache@v3
        with:
          path: vim
          key: ${{ runner.os }}-vim
      - name: Install Vim
        if: steps.cache-vim.outputs.cache-hit != 'true'
        shell: pwsh
        run: >-
          if (!(Test-Path -Path vim)){
            Add-Type -A System.IO.Compression.FileSystem
            Invoke-WebRequest http://ftp.vim.org/pub/vim/pc/vim80-586w32.zip `
              -OutFile vim.zip
            [IO.Compression.ZipFile]::ExtractToDirectory('vim.zip', 'vim')
            Invoke-WebRequest http://ftp.vim.org/pub/vim/pc/vim80-586rt.zip `
              -OutFile rt.zip
            [IO.Compression.ZipFile]::ExtractToDirectory('rt.zip', 'vim')
          }
      - name: Try to Restore Vader
        id: cache-vader
        uses: actions/cache@v3
        with:
          path: vader
          key: ${{ runner.os }}-vader
      - name: Cache Vader
        if: steps.cache-vader.outputs.cache-hit != 'true'
        shell: pwsh
        run: >-
          if (!(Test-Path -Path vader)){
            git clone https://github.com/junegunn/vader.vim vader 2> $null
            cd vader
            git checkout -qf c6243dd81c98350df4dec608fa972df98fa2a3af 2> $null
          }
      - name: Run tests
        # yamllint disable rule:line-length
        run: |
          vim\vim\vim80\vim.exe -u test\vimrc "+Vader! test/*.vader test/*/*.vader test/*/*/*.vader test/*/*/*.vader"
        # yamllint enable rule:line-length