name: static-analysis

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - '*'
      - 'release-branch/*'

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

jobs:
  gofmt:
    runs-on: ubuntu-latest
    steps:
    - name: Check out code
      uses: actions/checkout@v3
    - name: Set up Go
      uses: actions/setup-go@v3
      with:
        go-version-file: go.mod
    - name: Run gofmt (goimports)
      run: |
        OUT=$(go run golang.org/x/tools/cmd/goimports -d --format-only .)
        [ -z "$OUT" ] || (echo "Not gofmt'ed: $OUT" && exit 1)
    - uses: k0kubun/action-slack@v2.0.0
      with:
        payload: |
          {
            "attachments": [{
              "text": "${{ 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'

  vet:
    runs-on: ubuntu-latest
    steps:
    - name: Check out code
      uses: actions/checkout@v3

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

    - name: Run go vet
      run: go vet ./...

    - 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'

  staticcheck:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        goos: [linux, windows, darwin]
        goarch: [amd64]
        include:
          - goos: windows
            goarch: 386

    steps:
    - name: Check out code
      uses: actions/checkout@v3

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


    - name: Install staticcheck
      run: "GOBIN=~/.local/bin go install honnef.co/go/tools/cmd/staticcheck"

    - name: Print staticcheck version
      run: "staticcheck -version"

    - name: "Run staticcheck (${{ matrix.goos }}/${{ matrix.goarch }})"
      env:
        GOOS: ${{ matrix.goos }}
        GOARCH: ${{ matrix.goarch }}
      run: "staticcheck -- $(go list ./... | grep -v tempfork)"

    - 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'