gatsby-plugin-gatsby-cloud/plugin-data.js

A Gatsby plugin which optimizes working with Gatsby Cloud

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
exports.__esModule = true;
exports.buildPrefixer = buildPrefixer;
exports.default = makePluginData;
var _path = _interopRequireDefault(require("path"));
var _fsExtra = _interopRequireDefault(require("fs-extra"));
function buildPrefixer(prefix, ...paths) {
  return (...subpaths) => _path.default.join(prefix, ...paths, ...subpaths);
}

// This function assembles data across the manifests and store to match a similar
// shape of `static-entry.js`. With it, we can build headers that point to the correct
// hashed filenames and ensure we pull in the componentChunkName.
function makePluginData(store, assetsManifest) {
  const {
    program,
    pages,
    components,
    config
  } = store.getState();
  const publicFolder = buildPrefixer(program.directory, `public`);
  const functionsFolder = buildPrefixer(program.directory, `.cache`, `functions`);
  const stats = _fsExtra.default.readJSONSync(publicFolder(`webpack.stats.json`));
  // Get all the files, not just the first
  const chunkManifest = stats.assetsByChunkName;

  // We combine the manifest of JS and the manifest of assets to make a lookup table.
  const manifest = {
    ...assetsManifest,
    ...chunkManifest
  };
  return {
    pages,
    components,
    manifest,
    program,
    pathPrefix: config.pathPrefix,
    assetPrefix: config.assetPrefix,
    publicFolder,
    functionsFolder
  };
}