gatsby/dist/internal-plugins/prod-404-500/gatsby-node.js

Blazing fast modern site generator for React

"use strict";

const {
  emitter,
  store
} = require(`../../redux`);

const {
  actions
} = require(`../../redux/actions`);

const originalStatusPageByStatus = {};
const originalStatusPageByPath = {};
emitter.on(`CREATE_PAGE`, action => {
  // Copy /404/ to /404.html and /500/ to /500.html. Many static site hosts expect
  // site 404 pages to be named this. In addition, with Rendering Engines there might
  // be runtime errors which would fallback to "/500.html" page.
  // https://www.gatsbyjs.com/docs/how-to/adding-common-features/add-404-page/
  const result = /^\/?(404|500)\/?$/.exec(action.payload.path);

  if (result && result.length > 1) {
    const status = result[1];
    const originalPage = originalStatusPageByStatus[status];

    if (!originalPage) {
      const storedPage = {
        path: action.payload.path,
        component: action.payload.component,
        context: action.payload.context,
        status
      };
      originalStatusPageByStatus[status] = storedPage;
      originalStatusPageByPath[action.payload.path] = storedPage;
      store.dispatch(actions.createPage({ ...storedPage,
        path: `/${status}.html`
      }, action.plugin, action));
    }
  }
});
emitter.on(`DELETE_PAGE`, action => {
  const storedPage = originalStatusPageByPath[action.payload.path];

  if (storedPage) {
    store.dispatch(actions.deletePage({ ...storedPage,
      path: `/${storedPage.status}.html`
    }));
    originalStatusPageByPath[action.payload.path] = null;
    originalStatusPageByStatus[storedPage.status] = null;
  }
});
//# sourceMappingURL=gatsby-node.js.map