ci.yaml

name: ci

on:
  push:
    branches:
    - main
    - release/**
    tags:
    - v[0-9]+.[0-9]+.[0-9]+-?**

defaults:
  run:
    shell: bash

jobs:
  unit:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v3
      with:
        fetch-depth: 0

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

    - name: Check docs up to date
      run: |
        set -euo pipefail
        go run cmd/docs/main.go
        if [[ `git status --porcelain` ]]; then
          echo "Docs are not up-to-date"
          exit 1
        fi

    - name: Run tests
      run: go test -v ./pkg/...

    - name: Report coverage
      uses: codecov/codecov-action@v3.1.4

  build:
    runs-on: ubuntu-latest
    outputs:
      digest: ${{ steps.build.outputs.digest }}
      image: ${{ steps.build.outputs.image }}
    steps:
    - name: Checkout
      uses: actions/checkout@v3
    - name: Set up Go
      uses: actions/setup-go@v4
      with:
        go-version-file: 'go.mod'
    - name: Extract version
      shell: bash
      run: |
        [[ $GITHUB_REF =~ ^refs\/tags\/v(.*)$ ]] && version=${BASH_REMATCH[1]} || version=${{ github.sha }}
        echo "VERSION=${version}" >> $GITHUB_ENV
    - name: Build
      id: build
      run: |
        mkdir kp-binaries

        build() {
          OS=$1
          ARCH=$2
          echo "Building for $OS-$ARCH"
          GOOS=$OS CGO_ENABLED=0 GOARCH=$ARCH go build \
          -ldflags "-X 'github.com/vmware-tanzu/kpack-cli/pkg/rootcommand.Version=${{ env.VERSION }}' -X 'github.com/vmware-tanzu/kpack-cli/pkg/rootcommand.CommitSHA=$(git rev-parse --short HEAD)'" \
          -o kp-binaries/kp-$OS-$ARCH-${{ env.VERSION }} \
          ./cmd/kp
        }

        build darwin amd64
        build darwin arm64
        build linux amd64
        build linux arm64
        build windows amd64

    - name: Upload binaries
      uses: actions/upload-artifact@v3
      with:
        name: kp-binaries
        path: kp-binaries/

  release:
    needs:
      - unit
      - build
    if: ${{ startsWith(github.ref, 'refs/tags/v') }}
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v3

    - name: Validate release version
      run: |
        echo "GITHUB_REF=${GITHUB_REF}"
        [[ $GITHUB_REF =~ ^refs\/tags\/v(.*)$ ]] && version=${BASH_REMATCH[1]}
        if [[ -z "${version}" ]]; then
          echo "ERROR: version not detected."
          exit 1
        fi
        echo "VERSION=${version}" >> $GITHUB_ENV

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

    - name: Generate sha256sum
      id: sha256
      run: |
        mkdir checksums
        for binary in kp-binaries/*; do
          name=$(basename $binary)
          shasum -a 256 $binary > "checksums/${name}.sha256"
        done

    - name: Create Draft Release
      uses: softprops/action-gh-release@v1
      with:
        name: kp v${{ env.VERSION }}
        tag_name: v${{ env.VERSION }}
        target_commitish: ${{ github.sha }}
        token: ${{ secrets.RELEASE_TOKEN }}
        draft: true
        prerelease: true
        generate_release_notes: true
        files: |
          kp-binaries/*
          checksums/*