Function normalizeAuthorObject

src/utils/normalizeAuthorObject.js:20–46

({ fs, gitdir, author, commit })

 * @returns {Promise<void | {name: string, email: string, timestamp: number, timezoneOffset: number }>}
 */
export async function normalizeAuthorObject({ fs, gitdir, author, commit }) {
  const timestamp = Math.floor(Date.now() / 1000)

  const defaultAuthor = {
    name: await _getConfig({ fs, gitdir, path: 'user.name' }),
    email: (await _getConfig({ fs, gitdir, path: 'user.email' })) || '', // author.email is allowed to be empty string
    timestamp,
    timezoneOffset: new Date(timestamp * 1000).getTimezoneOffset(),
  }

  // Populate author object by using properties with this priority:
  // (1) provided author object
  // -> (2) author of provided commit object
  // -> (3) default author
  const normalizedAuthor = assignDefined(
    {},
    defaultAuthor,
    commit ? commit.author : undefined,
    author
  )

  if (normalizedAuthor.name === undefined) {
    return undefined
  }

  return normalizedAuthor
}