build.yml

name: Build toolchain

permissions:
  contents: write

on:
  push:
    branches:
      - tailscale
      - 'tailscale.go1.21'
  pull_request:
    branches:
      - '*'

jobs:
  test:
    runs-on: ubuntu-20.04
    steps:
    - name: checkout
      uses: actions/checkout@v3
    - name: test
      run: cd src && ./all.bash

  build_release:
    strategy:
      matrix:
        GOOS: ["linux", "darwin"]
        GOARCH: ["amd64", "arm64"]
    runs-on: ubuntu-20.04
    if: github.event_name == 'push'
    steps:
    - name: checkout
      uses: actions/checkout@v3
    - name: build
      run: cd src && ./make.bash
      env:
        GOOS: "${{ matrix.GOOS }}"
        GOARCH: "${{ matrix.GOARCH }}"
        CGO_ENABLED: "0"
    - name: trim unnecessary bits
      run: |
        rm -rf pkg/*_*
        mv pkg/tool/${{ matrix.GOOS }}_${{ matrix.GOARCH }} pkg
        rm -rf pkg/tool/*_*
        mv -f bin/${{ matrix.GOOS }}_${{ matrix.GOARCH }}/* bin/ || true
        rm -rf bin/${{ matrix.GOOS }}_${{ matrix.GOARCH }}
        mv pkg/${{ matrix.GOOS }}_${{ matrix.GOARCH }} pkg/tool
        find . -type d -name 'testdata' -print0 | xargs -0 rm -rf
        find . -name '*_test.go' -delete
    - name: archive
      run: cd .. && tar --exclude-vcs -zcf ${{ matrix.GOOS }}-${{ matrix.GOARCH }}.tar.gz go
    - name: save
      uses: actions/upload-artifact@v1
      with:
        name: ${{ matrix.GOOS }}-${{ matrix.GOARCH }}
        path: ../${{ matrix.GOOS }}-${{ matrix.GOARCH }}.tar.gz

  create_release:
    runs-on: ubuntu-20.04
    if: github.event_name == 'push'
    needs: [test, build_release]
    outputs:
      url: ${{ steps.create_release.outputs.upload_url }}
    steps:
    - name: create release
      id: create_release
      uses: actions/create-release@v1
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        # Release name can't be the same as tag name, sigh
        tag_name: build-${{ github.sha }}
        release_name: ${{ github.sha }}
        draft: false
        prerelease: true

  upload_release:
    strategy:
      matrix:
        GOOS: ["linux", "darwin"]
        GOARCH: ["amd64", "arm64"]
    runs-on: ubuntu-20.04
    if: github.event_name == 'push'
    needs: [create_release]
    steps:
    - name: download artifact
      uses: actions/download-artifact@v1
      with:
        name: ${{ matrix.GOOS }}-${{ matrix.GOARCH }}
    - name: upload artifact
      uses: actions/upload-release-asset@v1
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        upload_url: ${{ needs.create_release.outputs.url }}
        asset_path: ${{ matrix.GOOS }}-${{ matrix.GOARCH }}/${{ matrix.GOOS }}-${{ matrix.GOARCH }}.tar.gz
        asset_name: ${{ matrix.GOOS }}-${{ matrix.GOARCH }}.tar.gz
        asset_content_type: application/gzip

  clean_old:
    runs-on: ubuntu-20.04
    if: github.event_name == 'push'
    needs: [upload_release]
    steps:
    - name: checkout
      uses: actions/checkout@v3
    - name: Delete older builds
      run: ./.github/workflows/prune_old_builds.sh "${{ secrets.GITHUB_TOKEN }}"