Method createOrUpdateRef

src/github-helper.ts:432–464

(
    branchRepository: string,
    branch: string,
    newHead: string
  )

  }

  private async createOrUpdateRef(
    branchRepository: string,
    branch: string,
    newHead: string
  ) {
    const repository = this.parseRepository(branchRepository)
    const branchExists = await this.octokit.rest.repos
      .getBranch({
        ...repository,
        branch: branch
      })
      .then(
        () => true,
        () => false
      )

    if (branchExists) {
      core.info(`Branch ${branch} exists; Updating ref`)
      await this.octokit.rest.git.updateRef({
        ...repository,
        sha: newHead,
        ref: `heads/${branch}`,
        force: true
      })
    } else {
      core.info(`Branch ${branch} does not exist; Creating ref`)
      await this.octokit.rest.git.createRef({
        ...repository,
        sha: newHead,
        ref: `refs/heads/${branch}`
      })
    }
  }

  async convertToDraft(id: string): Promise<void> {
    core.info(`Converting pull request to draft`)