name: Android-Cross

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - '*'

concurrency:
  group: ${{ github.workflow }}-$${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

jobs:
  build:
    runs-on: ubuntu-latest

    if: "!contains(github.event.head_commit.message, '[ci skip]')"

    steps:
    - name: Check out code into the Go module directory
      uses: actions/checkout@v3

    - name: Set up Go
      uses: actions/setup-go@v3
      with:
        go-version-file: go.mod
      id: go

    - name: Android smoke build
      # Super minimal Android build that doesn't even use CGO and doesn't build everything that's needed
      # and is only arm64. But it's a smoke build: it's not meant to catch everything. But it'll catch
      # some Android breakages early.
      # TODO(bradfitz): better; see https://github.com/tailscale/tailscale/issues/4482
      env:
        GOOS: android
        GOARCH: arm64
      run: go install ./net/netns ./ipn/ipnlocal ./wgengine/magicsock/ ./wgengine/ ./wgengine/router/ ./wgengine/netstack ./util/dnsname/ ./ipn/ ./net/interfaces ./wgengine/router/ ./tailcfg/ ./types/logger/ ./net/dns ./hostinfo ./version

    - uses: k0kubun/action-slack@v2.0.0
      with:
        payload: |
          {
            "attachments": [{
              "text": "${{ job.status }}: ${{ github.workflow }} <https://github.com/${{ github.repository }}/commit/${{ github.sha }}/checks|${{ env.COMMIT_DATE }} #${{ env.COMMIT_NUMBER_OF_DAY }}> " +
                      "(<https://github.com/${{ github.repository }}/commit/${{ github.sha }}|" + "${{ github.sha }}".substring(0, 10) + ">) " +
                      "of ${{ github.repository }}@" + "${{ github.ref }}".split('/').reverse()[0] + " by ${{ github.event.head_commit.committer.name }}",
              "color": "danger"
            }]
          }
      env:
        SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
      if: failure() && github.event_name == 'push'