upgrade-flux.yaml

name: Upgrade flux

on:
  workflow_dispatch:
  schedule:
    - cron: "0 10 * * *"

jobs:
  has-new-flux:
    runs-on: ubuntu-latest
    outputs:
      version: ${{ steps.version.outputs.version }}
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Set new version if different
        id: version
        run: |
          old_version="$(grep '^FLUX_VERSION=' Makefile | cut -d'=' -f2)"
          new_version="$(curl -s --request GET --url "https://api.github.com/repos/fluxcd/flux2/releases?per_page=1" | jq . | jq '.[0] | .tag_name' | jq -r | sed -e 's/v//')"

          if [[ "$old_version" != "$new_version" ]]; then
              echo "::set-output name=version::$new_version"
          fi
  upgrade-flux:
    needs:
      - has-new-flux
    runs-on: ubuntu-latest
    if: needs.has-new-flux.outputs.version
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Setup Go
        uses: actions/setup-go@v4
        with:
          go-version: 1.20.X
      - name: Upgrade flux
        run: |
          sed -i 's/^FLUX_VERSION=.*/FLUX_VERSION=${{ needs.has-new-flux.outputs.version }}/' Makefile
          go get -u github.com/fluxcd/flux2
          go mod tidy
          # Extract e.g. 0.34 from 0.34.5
          series="$(echo ${{ needs.has-new-flux.outputs.version }} | awk 'BEGIN{FS=OFS="."} NF--')"
          if ! grep -qe "^\* $series$" website/docs/installation.mdx; then
            sed -i -e "/Flux releases:$/,/^$/ s/^$/* $series\n/" website/docs/installation.mdx
          fi
      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v3
        with:
          author: weave-gitops-bot <weave-gitops-bot@weave.works>
          signoff: true
          committer: weave-gitops-bot <weave-gitops-bot@weave.works>
          branch: upgrade-flux
          base: main
          title: "Upgrade flux to ${{ needs.has-new-flux.outputs.version }}"
          token: ${{ secrets.WEAVE_GITOPS_BOT_ACCESS_TOKEN }}
          body: |
            Upgrade the flux version used by gitops run, the package
            dependencies, and the supported flux version in the manual.