flux2/.github/workflows/update.yaml

name: Update Components

on:
  workflow_dispatch:
  schedule:
    - cron: "0 * * * *"
  push:
    branches: [main]

jobs:
  update-components:
    runs-on: ubuntu-latest
    steps:
      - name: Check out code
        uses: actions/checkout@v2
      - name: Setup Go
        uses: actions/setup-go@v2
        with:
          go-version: 1.16.x
      - name: Update component versions
        id: update
        run: |
          PR_BODY=""

          bump_version() {
            local RELEASE_VERSION=$(curl -s https://api.github.com/repos/fluxcd/$1/releases | jq -r 'sort_by(.published_at) | .[-1] | .tag_name')
            local CURRENT_VERSION=$(sed -n "s/.*$1\/releases\/download\/\(.*\)\/.*/\1/p;n" manifests/bases/$1/kustomization.yaml)

            if [[ "${RELEASE_VERSION}" != "${CURRENT_VERSION}" ]]; then
              # bump kustomize
              sed -i "s/\($1\/releases\/download\/\)v.*\(\/.*\)/\1${RELEASE_VERSION}\2/g" "manifests/bases/$1/kustomization.yaml"

              if [[ ! -z $(grep "github.com/fluxcd/$1/api" go.mod | awk '{print $2}') ]]; then
                # bump go mod
                go mod edit -require="github.com/fluxcd/$1/api@${RELEASE_VERSION}"
              fi

              # NB: special URL encoded formatting required for newlines
              PR_BODY="$PR_BODY- $1 to ${RELEASE_VERSION}%0A  https://github.com/fluxcd/$1/blob/${RELEASE_VERSION}/CHANGELOG.md%0A"
            fi
          }

          {
            # bump controller versions
            bump_version helm-controller
            bump_version kustomize-controller
            bump_version source-controller
            bump_version notification-controller
            bump_version image-reflector-controller
            bump_version image-automation-controller

            # add missing and remove unused modules
            go mod tidy

            # diff change
            git diff

            # export PR_BODY for PR and commit
            echo "::set-output name=pr_body::$PR_BODY"
          }

      - name: Create Pull Request
        id: cpr
        uses: peter-evans/create-pull-request@v3
        with:
            token: ${{ secrets.BOT_GITHUB_TOKEN }}
            commit-message: |
              Update toolkit components

              ${{ steps.update.outputs.pr_body }}
            committer: GitHub <noreply@github.com>
            author: fluxcdbot <fluxcdbot@users.noreply.github.com>
            signoff: true
            branch: update-components
            title: Update toolkit components
            body: |
              ${{ steps.update.outputs.pr_body }}
            labels: |
              area/build
            reviewers: ${{ secrets.ASSIGNEES }}

      - name: Check output
        run: |
          echo "Pull Request Number - ${{ steps.cpr.outputs.pull-request-number }}"
          echo "Pull Request URL - ${{ steps.cpr.outputs.pull-request-url }}"