Function getComponentStatuses

script/component-status-project/build.ts:21–54

* Extracts the component status for each file in the given directory. * * @param filenames Array of filenames to read front-matter from * @param dir Absolute path to directory containing files * @returns A promise that resolves to an array containing outcome of file front-matter extraction

(filenames: string[], dir: string)

 * @returns A promise that resolves to an array containing outcome of file front-matter extraction
 */
function getComponentStatuses(filenames: string[], dir: string) {
  const promises: Promise<ComponentStatus | null>[] = []

  const handleCallback = (
    filename: string,
    resolve: (value: ComponentStatus | null) => void,
    reject: (value: unknown) => void,
  ) => {
    fs.readFile(path.resolve(dir, filename), 'utf-8', (err, content) => {
      if (err) return reject(err)

      if (fm.test(content)) {
        const {
          attributes: {title, status},
        } = fm(content)

        if (status) {
          return resolve({[title]: status})
        }
      }

      resolve(null)
    })
  }

  for (const filename of filenames) {
    const promise: Promise<ComponentStatus | null> = new Promise((resolve, reject) => {
      return handleCallback(filename, resolve, reject)
    })
    promises.push(promise)
  }

  return Promise.all(promises)
}

/**
 * Orchestrates the process of reading component status for each file in the given directory.