ci.yml

name: CI
on:
  push:
    tags:
      - 'v*.*.*'
    branches:
      - master
  pull_request:
    types: [opened, synchronize, reopened]
  workflow_dispatch:
    inputs:
      version:
        description: 'Release version'
        required: true

jobs:
  qa:
    name: Quality Assurance
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Set up Go
        uses: actions/setup-go@v4
        with:
          go-version: '1.20'

      - name: Format Check
        run: |
          set -euo pipefail
          go install golang.org/x/tools/cmd/goimports@latest
          goimports -w .
          git diff --exit-code

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

      - name: Test
        run: go test -race ./...

  build:
    name: Build
    if: startsWith(github.ref, 'refs/tags/v')
    runs-on: ubuntu-latest
    strategy:
      matrix:
        target:
          - 'windows/amd64'
          - 'windows/386'
          - 'windows/arm64'
          - 'linux/amd64'
          - 'linux/386'
          - 'linux/arm64'
          - 'linux/arm'
          - 'darwin/amd64'
          - 'darwin/arm64'
          - 'freebsd/386'
          - 'freebsd/amd64'
          - 'freebsd/arm'
          - 'openbsd/amd64'
          - 'openbsd/arm64'
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Set up Go
        uses: actions/setup-go@v4
        with:
          go-version: '1.20'

      - name: Set up GOOS and GOARCH
        id: setup_env
        run: |
          echo "goos=$(echo ${{ matrix.target }} | cut -d'/' -f1)" >> $GITHUB_OUTPUT
          echo "goarch=$(echo ${{ matrix.target }} | cut -d'/' -f2)" >> $GITHUB_OUTPUT

      - name: Build
        env:
          GOOS: ${{ steps.setup_env.outputs.goos }}
          GOARCH: ${{ steps.setup_env.outputs.goarch }}
        run: |
          set -euo pipefail

          make vegeta

          VERSION=${GITHUB_REF#refs/tags/v}
          NAME="vegeta_${VERSION}_${GOOS}_${GOARCH}"
          if [[ "$GOOS" != "windows" ]]; then
            tar -czf "$NAME.tar.gz" vegeta
          else
            zip "$NAME.zip" vegeta.exe
          fi

      - name: Upload Artifacts
        uses: actions/upload-artifact@v3
        with:
          name: vegeta_${{ steps.setup_env.outputs.goos }}_${{ steps.setup_env.outputs.goarch }}
          path: |
            *.zip
            *.tar.gz

  release:
    name: Release
    if: startsWith(github.ref, 'refs/tags/v')
    needs: [qa, build]
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Download Artifacts
        uses: actions/download-artifact@v3

      - name: Create checksums and sign them
        id: sign
        run: |
          set -euo pipefail

          mkdir dist
          mv vegeta*/* dist/
          cd dist

          VERSION=${GITHUB_REF#refs/tags/v}
          CHECKSUMS=vegeta_${VERSION}_checksums.txt
          sha256sum * > $CHECKSUMS

          echo "${{ secrets.VEGETA_GPG_KEY }}" | gpg --batch --yes --pinentry-mode loopback --import
          gpg --export --armor > vegeta_${VERSION}_pubkey.asc
          gpg --detach-sign -a $CHECKSUMS

          echo "name=${VERSION}" >> $GITHUB_OUTPUT

      - name: Generate release notes
        id: release_notes
        run: |
          set -x
          set -euo pipefail

          CURRENT_VERSION=${GITHUB_REF#refs/tags/}
          PREV_VERSION=$(git describe --tags --abbrev=0 $CURRENT_VERSION^)
          RELEASE_NOTES=${{ github.workspace }}/release-notes.txt

          printf "## Changelog\n\n" > $RELEASE_NOTES
          git log ${PREV_VERSION}..${CURRENT_VERSION} --oneline --abbrev-commit >> $RELEASE_NOTES
          cat $RELEASE_NOTES

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v1
        with:
          name: ${{ steps.sign.outputs.version }}
          body_path: ${{ github.workspace }}/release-notes.txt
          files: |
            dist/*
          tag_name: ${{ steps.sign.outputs.version }}
          draft: true
          prerelease: false
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}