name: test
on:
  # run tests on push to master, but not when other branches are pushed to
  push:
    branches:
      - master

  # run tests for all pull requests
  pull_request:
  merge_group:

permissions:
  contents: read

env:
  latest_go: "1.25.x"
  GO111MODULE: on

jobs:
  test:
    strategy:
      matrix:
        include:
          - job_name: Linux
            go: 1.25.x
            os: ubuntu-latest
            check_changelog: true

          - job_name: Linux (race)
            go: 1.25.x
            os: ubuntu-latest
            test_opts: "-race"

          - job_name: Linux
            go: 1.24.x
            os: ubuntu-latest

    name: ${{ matrix.job_name }} Go ${{ matrix.go }}
    runs-on: ${{ matrix.os }}

    env:
      GOPROXY: https://proxy.golang.org

    steps:
      - name: Check out code
        uses: actions/checkout@v6

      - name: Set up Go ${{ matrix.go }}
        uses: actions/setup-go@v6
        with:
          go-version: ${{ matrix.go }}

      - name: Build with build.go
        run: |
          go run build.go --goos linux
          go run build.go --goos windows
          go run build.go --goos darwin

      - name: Run local Tests
        run: |
          go test -cover ${{matrix.test_opts}} ./...

      - name: Check changelog files with calens
        run: |
          echo "install calens"
          go install github.com/restic/calens@latest

          echo "check changelog files"
          calens
        if: matrix.check_changelog

  lint:
    name: lint
    runs-on: ubuntu-latest
    permissions:
      contents: read
      # allow annotating code in the PR
      checks: write
    steps:
      - name: Check out code
        uses: actions/checkout@v6

      - name: Set up Go ${{ env.latest_go }}
        uses: actions/setup-go@v6
        with:
          go-version: ${{ env.latest_go }}

      - name: golangci-lint
        uses: golangci/golangci-lint-action@v9
        with:
          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
          version: v2.4.0
          args: --verbose --timeout 5m

        # only run golangci-lint for pull requests, otherwise ALL hints get
        # reported. We need to slowly address all issues until we can enable
        # linting the master branch :)
        if: github.event_name == 'pull_request'

      - name: Check go.mod/go.sum
        run: |
          echo "check if go.mod and go.sum are up to date"
          go mod tidy
          git diff --exit-code go.mod go.sum

  analyze:
    name: Analyze results
    needs: [test, lint]
    if: always()

    permissions: # no need to access code
      contents: none

    runs-on: ubuntu-latest
    steps:
      - name: Decide whether the needed jobs succeeded or failed
        uses: re-actors/alls-green@05ac9388f0aebcb5727afa17fcccfecd6f8ec5fe
        with:
          jobs: ${{ toJSON(needs) }}