Sync Fork Branch with Upstream

//native

/**

 * Sync Fork Branch with Upstream

 * Merge the upstream repository's changes into a branch of a fork (fast-forward or merge commit).

 */

export async function main(

  auth: RT.Github,

  owner: string,

  repo: string,

  branch: string

) {

  const response = await fetch(

    `https://api.github.com/repos/${owner}/${repo}/merge-upstream`,

    {

      method: "POST",

      headers: {

        Authorization: `Bearer ${auth.token}`,

        "Content-Type": "application/json",

        Accept: "application/vnd.github+json",

        "X-GitHub-Api-Version": "2022-11-28",

      },

      body: JSON.stringify({ branch }),

    }

  )

  if (!response.ok) {

    throw new Error(`${response.status} ${await response.text()}`)

  }

  return await response.json()

}