gatsby-plugin-netlify-redirect/gatsby-node.js

A Gatsby plugin which generates a _headers file for netlify

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _webpackAssetsManifest = _interopRequireDefault(require("webpack-assets-manifest"));

var _pluginData = _interopRequireDefault(require("./plugin-data"));

var _buildHeadersProgram = _interopRequireDefault(require("./build-headers-program"));

var _createRedirects = _interopRequireDefault(require("./create-redirects"));

var _constants = require("./constants");

// https://www.netlify.com/docs/headers-and-basic-auth/
let assetsManifest = {}; // Inject a webpack plugin to get the file manifests so we can translate all link headers

exports.onCreateWebpackConfig = ({
  actions,
  stage
}) => {
  if (stage !== _constants.BUILD_HTML_STAGE && stage !== _constants.BUILD_CSS_STAGE) {
    return;
  }

  actions.setWebpackConfig({
    plugins: [new _webpackAssetsManifest.default({
      assets: assetsManifest,
      // mutates object with entries
      merge: true
    })]
  });
};

exports.onPostBuild = async ({
  store,
  pathPrefix,
  reporter
}, userPluginOptions) => {
  const pluginData = (0, _pluginData.default)(store, assetsManifest, pathPrefix);
  const pluginOptions = { ..._constants.DEFAULT_OPTIONS,
    ...userPluginOptions
  };
  const {
    redirects
  } = store.getState();
  const NOT_FOUND_REGEXP = /\/404\/?$/;
  const localizedNotFound = [];
  let rewrites = [];

  if (pluginOptions.generateMatchPathRewrites) {
    const {
      pages
    } = store.getState();
    Array.from(pages.values()).filter(page => page.matchPath && page.matchPath !== page.path).forEach(page => {
      const isNotFoundPage = NOT_FOUND_REGEXP.test(page.path);
      rewrites.push();

      if (isNotFoundPage) {
        localizedNotFound.push({
          fromPath: page.matchPath,
          status: 404,
          toPath: page.path
        });
      } else {
        rewrites.push({
          fromPath: page.matchPath,
          toPath: page.path,
          status: 200
        });
      }
    });
  }

  await Promise.all([(0, _buildHeadersProgram.default)(pluginData, pluginOptions, reporter), (0, _createRedirects.default)(pluginData, redirects, rewrites.concat(localizedNotFound))]);
};