gatsby/dist/utils/find-page-by-path.js

Blazing fast modern site generator for React

"use strict";

exports.__esModule = true;
exports.findPageByPath = findPageByPath;

var _utils = require("@gatsbyjs/reach-router/lib/utils");

function findPageByPath(state, path, fallbackTo404 = false) {
  const {
    pages
  } = state; // first check by exact path

  let page = pages.get(path);

  if (page) {
    return page;
  }

  if (path === ``) {
    // from my tests I never was able to make request with
    // completely empty pathname, but just for the sake
    // of completeness - try available alternative
    page = pages.get(`/`);

    if (page) {
      return page;
    }
  } // Gatsby doesn't allow for page path to be empty string,
  // so skipping trying to get page for "" path if we can't
  // find page for `/`
  else if (path !== `/`) {
      // check various trailing/leading slashes combinations
      const hasLeadingSlash = path.startsWith(`/`);
      const hasTrailingSlash = path.endsWith(`/`);
      const bare = path.slice(hasLeadingSlash ? 1 : 0, hasTrailingSlash ? -1 : path.length);
      [bare, `/` + bare, bare + `/`, `/` + bare + `/`].some(potentialPath => {
        page = pages.get(potentialPath);
        return !!page;
      });

      if (page) {
        return page;
      }
    } // we didn't find exact static page, time to check matchPaths


  for (const [, page] of pages) {
    if (page.matchPath && (0, _utils.match)(page.matchPath, path)) {
      return page;
    }
  }

  if (fallbackTo404) {
    var _findPageByPath;

    return (_findPageByPath = findPageByPath(state, `/dev-404-page/`, false)) !== null && _findPageByPath !== void 0 ? _findPageByPath : findPageByPath(state, `/404.html`, false);
  }

  return undefined;
}
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