# A workflow to cut a new release candidate (i.e.: .stable_01) on the current
# release branch.
#
# The channel will be automatically determined from the branch name (i.e.: when
# run on a stable_release/* branch, it will assume it is building a new "stable"
# channel candidate).

name: Cut New Release Candidate
on:
  workflow_dispatch:

jobs:
  compute_channel:
    name: Compute release channel
    runs-on: ubuntu-latest
    outputs:
      channel: ${{ steps.compute-channel.outputs.channel }}
    steps:
      - name: "Compute release channel"
        id: compute-channel
        run: |
          # Check whether the current branch name starts with "some_release/",
          # and if so, extract the value of "some" into the CHANNEL variable,
          # discarding the rest of the branch name.
          CHANNEL="$(echo $GITHUB_REF_NAME | sed -r 's|^(\w+)_release/.*$|\1|')"
          # If the sed expression doesn't match the input, it will write out the
          # input, unmodified.
          if [[ $CHANNEL == $GITHUB_REF_NAME ]]; then
            echo "::error::Can only create new release candidates on a release branch" && exit 1
          fi
          echo "channel=$CHANNEL" >> $GITHUB_OUTPUT
        shell: bash

  create_release_candidate:
    name: Create Release Candidate
    uses: ./.github/workflows/create_release.yml
    needs: compute_channel
    with:
      channel: ${{ needs.compute_channel.outputs.channel }}
    secrets: inherit

  update_channel_versions:
    name: Update channel_versions.json
    needs:
      - create_release_candidate
    runs-on: ubuntu-latest
    steps:
      - name: Invoke update workflow in channel-versions repository
        uses: peter-evans/repository-dispatch@28959ce8df70de7be546dd1250a005dd32156697 # v4.0.1
        with:
          repository: warpdotdev/channel-versions
          token: ${{ secrets.CHANNEL_VERSIONS_REPOSITORY_DISPATCH_TOKEN }}
          event-type: update-channel-versions