Method createBranch

packages/decap-cms-backend-github/src/API.ts:1268–1292

(branchName: string, sha: string)

  }

  async createBranch(branchName: string, sha: string) {
    try {
      const result = await this.createRef('heads', branchName, sha);
      return result;
    } catch (e) {
      const message = String(e.message || '');
      if (message === 'Reference update failed') {
        await throwOnConflictingBranches(branchName, name => this.getBranch(name), API_NAME);
      } else if (
        message === 'Reference already exists' &&
        branchName.startsWith(`${CMS_BRANCH_PREFIX}/`)
      ) {
        try {
          // this can happen if the branch wasn't deleted when the PR was merged
          // we backup the existing branch just in case and patch it with the new sha
          await this.backupBranch(branchName);
          const result = await this.patchBranch(branchName, sha, { force: true });
          return result;
        } catch (e) {
          console.log(e);
        }
      }
      throw e;
    }
  }

  assertCmsBranch(branchName: string) {
    return branchName.startsWith(`${CMS_BRANCH_PREFIX}/`);