Function _isBranchNameReservedInRepo

ng-dev/release/publish/actions.ts:270–282

Checks whether a given branch name is reserved in the specified repository.

(repo: GithubRepo, name: string)

  /** Checks whether a given branch name is reserved in the specified repository. */
  private async _isBranchNameReservedInRepo(repo: GithubRepo, name: string): Promise<boolean> {
    try {
      await this.git.github.repos.getBranch({owner: repo.owner, repo: repo.name, branch: name});
      return true;
    } catch (e) {
      // If the error has a `status` property set to `404`, then we know that the branch
      // does not exist. Otherwise, it might be an API error that we want to report/re-throw.
      if (isGithubApiError(e) && e.status === 404) {
        return false;
      }
      throw e;
    }
  }

  /** Finds a non-reserved branch name in the repository with respect to a base name. */
  private async _findAvailableBranchName(repo: GithubRepo, baseName: string): Promise<string> {