releases.yaml

# Copyright (C) 2021 ScyllaDB

name: Releases

on:
  push:
    tags:
    - 'v[0-9]+.[0-9]+.[0-9]+-beta.[0-9]+'
    - 'v[0-9]+.[0-9]+.[0-9]+-rc.[0-9]+'
    - 'v[0-9]+.[0-9]+.[0-9]+'
  # GitHub actions suck for re-triggering on tag changes, so we allow also manual trigger.
  # Also useful for easily re-triggering release notes updates when PR title is fixed.
  workflow_dispatch:
    inputs:
      tag:
        description: 'Tag for publishing a release, like `v1.3.0`. The old release must be deleted before this job.'
        required: true

env:
  go_version: 1.17.5
  git_repo_path: ${{ github.workspace }}/go/src/github.com/scylladb/scylla-operator
  retention_days: 90

defaults:
  run:
    shell: bash
    working-directory: "./go/src/github.com/scylladb/scylla-operator"

jobs:
  release-notes:
    name: Publish release notes
    runs-on: ubuntu-20.04
    steps:
    - uses: actions/checkout@v2
      with:
        path: ${{ env.git_repo_path }}
        fetch-depth: 0
    - name: Setup go
      uses: actions/setup-go@v2
      with:
        go-version: ${{ env.go_version }}
    - name: Create release
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      run: |
        set -euExo pipefail
        shopt -s inherit_errexit

        source ./hack/lib/semver.sh

        if [[ -n '${{ github.event.inputs.tag }}' ]]; then
          current_tag='${{ github.event.inputs.tag }}'
        else
          current_tag="${GITHUB_REF#refs/*/}"
        fi
        [[ "${current_tag}" != "" ]]
        echo "${current_tag}" | grep -E -e '^v[0-9]+\.[0-9]+\.[0-9]+(-(beta|rc).[0-9]+)?$'

        prerelease=$( echo "${current_tag}" | sed -E -e 's/^[^-]+(-(beta|rc)\..*)?$/\2/' )
        case "${prerelease}" in
          "beta" | "rc")
            # Pre-releases diff to a closest pre-release of the same type.
            tags=$( git tag -l | grep -E '^v[0-9]+\.[0-9]+\.[0-9]+(-'"${prerelease}"'.[0-9]+)?$' )
            ;;

          "")
            # Releases diff to a closest release.
            tags=$( git tag -l | grep -E '^v[0-9]+\.[0-9]+\.[0-9]$' )
            ;;

          *)
            exit 1
            ;;
        esac

        previous_tag="$( find_previous_semver "${tags}" "${current_tag}" )"
        [[ "${previous_tag}" != "" ]]

        release_name="${current_tag#v}"
        previous_release_name="${previous_tag#v}"
        make build GO_BUILD_PACKAGES=./cmd/gen-release-notes --warn-undefined-variables
        ./gen-release-notes --start-ref="$( git merge-base "${current_tag}" "${previous_tag}" )" \
        --end-ref="${current_tag}" --release-name="${release_name}" --previous-release-name="${previous_release_name}" --github-token="${GITHUB_TOKEN}" \
        --loglevel=2 > ~/release_notes.md

        data="$( jq -n \
          --arg current_tag "${current_tag}" \
          --arg github_ref "${GITHUB_REF}" \
          --arg release_name "${release_name}" \
          --arg prerelease "${prerelease}" \
          --arg body "$( cat ~/release_notes.md )" \
          '{
            "tag_name": $current_tag,
            "name": $current_tag,
            "draft": false,
            "prerelease": $prerelease | test("^$") | not,
            "body": $body
        }' )"
        curl --fail -X POST \
        -H "Authorization: Bearer ${GITHUB_TOKEN}" \
        -H "Accept: application/vnd.github.v3+json" \
        https://api.github.com/repos/scylladb/scylla-operator/releases \
        --data "${data}"

    - name: Upload artifact
      if: ${{ always() }}
      uses: actions/upload-artifact@v2
      with:
        name: release_notes.md
        path: ~/release_notes.md
        if-no-files-found: error
        retention-days: ${{ env.retention_days }}