check-go-cross-build-task.yml

name: Check Cross Build

env:
  # See: https://github.com/actions/setup-go/tree/v2#readme
  GO_VERSION: "1.15"

# See: https://docs.github.com/en/free-pro-team@latest/actions/reference/events-that-trigger-workflows
on:
  create:
  push:
    paths:
      - ".github/workflows/check-go-cross-build-task.ya?ml"
      - "go.mod"
      - "go.sum"
      - "Taskfile.ya?ml"
      - "**.go"
  pull_request:
    paths:
      - ".github/workflows/check-go-cross-build-task.ya?ml"
      - "go.mod"
      - "go.sum"
      - "Taskfile.ya?ml"
      - "**.go"
  workflow_dispatch:
  repository_dispatch:

jobs:
  run-determination:
    runs-on: ubuntu-latest
    outputs:
      result: ${{ steps.determination.outputs.result }}
    steps:
      - name: Determine if the rest of the workflow should run
        id: determination
        run: |
          RELEASE_BRANCH_REGEX="refs/heads/[0-9]+.[0-9]+.x"
          # The `create` event trigger doesn't support `branches` filters, so it's necessary to use Bash instead.
          if [[ \
            "${{ github.event_name }}" != "create" || \
            "${{ github.ref }}" =~ $RELEASE_BRANCH_REGEX \
          ]]; then
            # Run the other jobs.
            RESULT="true"
          else
            # There is no need to run the other jobs.
            RESULT="false"
          fi

          echo "::set-output name=result::$RESULT"

  build:
    needs: run-determination
    if: needs.run-determination.outputs.result == 'true'

    strategy:
      matrix:
        os:
          - ubuntu-latest
          - windows-latest
          - macos-latest

    runs-on: ${{ matrix.os }}

    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Install Go
        uses: actions/setup-go@v2
        with:
          go-version: ${{ env.GO_VERSION }}

      - name: Install Taskfile
        uses: arduino/setup-task@v1
        with:
          repo-token: ${{ secrets.GITHUB_TOKEN }}
          version: 3.x

      - name: Build native
        run: task build

      - name: Cross-build for 386
        if: matrix.os != 'macos-latest'
        env:
          GOARCH: "386"
        run: task build

      - name: Cross-build for arm
        if: matrix.os != 'macos-latest'
        env:
          GOARCH: "arm"
        run: task build