function generateVectorManifest()

in scripts/generate-manifest.js [70:127]
52 lines of code
17 McCabe index (conditional complexity)

function generateVectorManifest(sources, opts) {
  opts = {
    version: 'v0',
    production: false,
    hostname: constants.VECTOR_STAGING_HOST,
    fieldInfo: null,
    dataDir: 'data',
    ...opts,
  };

  const isDateVersion = checkDateVersion(opts.version);

  // Get the Semantic Version (in case it is date based)
  const manifestVersion = coerceToSemVer(opts.version);
  const layers = [];
  const uniqueProperties = [];
  for (const source of orderBy(sources, ['weight', 'name'], ['desc', 'asc'])) {
    if (!semver.validRange(source.versions)) {
      throw new Error(`Invalid versions specified for ${source.name}`);
    }
    if ((!opts.production ||
      (opts.production && source.production)) &&
      semver.satisfies(manifestVersion, source.versions)) {
      switch (semver.major(manifestVersion)) {
        case 1:
          uniqueProperties.push('name', 'id');
          layers.push(manifestLayerV1(source, opts.hostname, { manifestVersion }));
          break;
        case 2:
          uniqueProperties.push('name', 'id');
          layers.push(manifestLayerV2(source, opts.hostname, { manifestVersion }));
          break;
        case 6:
        case 7:
        case 8:
        case 9: // v6, v7, v8, v9 manifest schema are the same
          uniqueProperties.push('layer_id');
          layers.push(manifestLayerV6(source, opts.hostname, { manifestVersion, fieldInfo: opts.fieldInfo, dataDir: opts.dataDir }));
          break;
        default:
          throw new Error(`Unable to get a manifest for version ${manifestVersion}`);
      }
    }
  }
  for (const prop of uniqueProperties) {
    throwIfDuplicates(layers, prop);
  }

  const manifest = {
    version: isDateVersion
      // Get the Date Version
      ? coerceToDateSemver(opts.version)?.date
      // Get the Semantic Version
      : `${semver.major(manifestVersion)}.${semver.minor(manifestVersion)}`,
    layers: layers,
  };
  return manifest;
}