tailscale/.github/workflows/win.yml

name: win-ci

on:
  push:

jobs:
  windows:
    runs-on: windows-latest
    name: Windows (${{ matrix.name || matrix.shard}})
    strategy:
      fail-fast: false # don't abort the entire matrix if one element fails
      matrix:
        include:
          - key: "win-bench"
            name: "benchmarks"
          - key: "win-shard-1-2"
            shard: "1/2"
          - key: "win-shard-2-2"
            shard: "2/2"
    steps:
    - name: checkout
      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
      with:
        path: src
    - uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
      with:
        key: ${{ matrix.key }}-dev-drive-${{ hashFiles('src/go.mod', 'src/go.sum') }}
        path: C:\\dev_disk.vhdx
    - uses: samypr100/setup-dev-drive@30f0f98ae5636b2b6501e181dfb3631b9974818d # v4.0.0
      with:
        drive-size: 10GB # 300GB available: https://docs.github.com/en/enterprise-cloud@latest/actions/reference/runners/larger-runners#machine-sizes-for-larger-runners
        workspace-copy: true
        drive-path: C:\\dev_disk.vhdx
        mount-if-exists: true

    - name: Check restored cache
      shell: pwsh
      run: |
        if (Test-Path "${{ env.DEV_DRIVE }}/gocache") {
          Get-ChildItem -Recurse ${{ env.DEV_DRIVE }}/gocache
        } else {
          Write-Host "gocache directory does not exist yet"
        }
        if (Test-Path "${{ env.DEV_DRIVE }}/gomodcache") {
          Get-ChildItem -Recurse ${{ env.DEV_DRIVE }}/gomodcache
        } else {
          Write-Host "gomodcache directory does not exist yet"
        }        

    - name: Install Go
      uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
      with:
        go-version-file: ${{ env.DEV_DRIVE_WORKSPACE }}/src/go.mod
        cache: false

    - name: test
      if: matrix.key != 'win-bench' # skip on bench builder
      working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}/src
      env:
        GOCACHE: ${{ env.DEV_DRIVE }}/gocache
        GOMODCACHE: ${{ env.DEV_DRIVE }}/gomodcache
      run: go run ./cmd/testwrapper sharded:${{ matrix.shard }}

    - name: bench all
      if: matrix.key == 'win-bench'
      working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}/src
      env:
        GOCACHE: ${{ env.DEV_DRIVE }}/gocache
        GOMODCACHE: ${{ env.DEV_DRIVE }}/gomodcache
      # Don't use -bench=. -benchtime=1x.
      # Somewhere in the layers (powershell?)
      # the equals signs cause great confusion.
      run: go test ./... -bench . -benchtime 1x -run "^$"

    - name: Tidy cache
      shell: pwsh
      run: |
        Get-ChildItem -Path "${{ env.DEV_DRIVE }}/gocache" -File -Recurse |
          Where-Object { $_.LastAccessTime -lt (Get-Date).AddMinutes(-90) } |
          Remove-Item -Force        

  win-tool-go:
    runs-on: windows-latest
    name: Windows (win-tool-go)
    steps:
    - name: checkout
      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
      with:
        path: src
    - name: test-tool-go
      working-directory: src
      run: ./tool/go version