Function build

scripts/build.js:160–199

* Builds the target. * @param {string} target - The target to build. * @returns {Promise<void>} - A promise representing the build process.

(target)

 * @returns {Promise<void>} - A promise representing the build process.
 */
async function build(target) {
  const pkgBase = privatePackages.includes(target)
    ? `packages-private`
    : `packages`
  const pkgDir = path.resolve(`${pkgBase}/${target}`)
  const pkg = JSON.parse(fs.readFileSync(`${pkgDir}/package.json`, 'utf-8'))

  // if this is a full build (no specific targets), ignore private packages
  if ((isRelease || !targets.length) && pkg.private) {
    return
  }

  // if building a specific format, do not remove dist.
  if (!formats && fs.existsSync(`${pkgDir}/dist`)) {
    fs.rmSync(`${pkgDir}/dist`, { recursive: true })
  }

  const env =
    (pkg.buildOptions && pkg.buildOptions.env) ||
    (devOnly ? 'development' : 'production')

  await exec(
    'rollup',
    [
      '-c',
      '--environment',
      [
        `COMMIT:${commit}`,
        `NODE_ENV:${env}`,
        `TARGET:${target}`,
        formats ? `FORMATS:${formats}` : ``,
        prodOnly ? `PROD_ONLY:true` : ``,
        sourceMap ? `SOURCE_MAP:true` : ``,
      ]
        .filter(Boolean)
        .join(','),
    ],
    { stdio: 'inherit' },
  )
}

/**
 * Checks the sizes of all targets.