gatsby-plugin-preload-fonts/prepare/fetch-routes.js

Gatsby plugin for preloading fonts per page

"use strict";

const {
  createContentDigest,
  isCI
} = require(`gatsby-core-utils`);
const {
  request
} = require(`graphql-request`);
const {
  formatRelative
} = require(`date-fns`);
const {
  red,
  blue,
  bold,
  dim
} = require(`chalk`);
module.exports = async ({
  logger,
  endpoint,
  cache
}) => {
  const query = `
    query Routes {
      allSitePage {
        nodes {
          path
        }
      }
    }
  `;
  let routes;
  try {
    const {
      allSitePage
    } = await request(endpoint, query);
    routes = allSitePage.nodes.map(n => n.path);
  } catch (err) {
    logger.fatal(`

${red(`err`)} could not establish a connection with the dev server
    attempted connection to ${endpoint}

    make sure you've run \`gatsby develop\` and set the
    following env variables (if necessary)

      - ${bold(`HOST`)}          ${dim(`(default: localhost)`)}
      - ${bold(`PORT`)}          ${dim(`(default: 8000)`)}
      - ${bold(`LOG_LEVEL`)}     ${dim(`(default: error)`)}
      - ${bold(`GRAPHQL_PATH`)}  ${dim(`(default: /___graphql)`)}

`);
  }
  const routesHash = createContentDigest(routes);
  // We can't detect all new routes so to make sure we are up to date
  // we ask the user if they wants to recrawl or not.
  if (cache.hash === routesHash) {
    // In CI we can't ask the user anything so we will bail as if the user said no.
    if (isCI()) {
      return [];
    }
    const lastRun = formatRelative(new Date(cache.timestamp), new Date());
    const ok = await logger.confirm(`

  ${blue(`note`)} routes have not changed from the last run; if you haven't
       added any new routes or font requirements since then, you
       should be good to go! would you like to crawl them anyways?

         - ${dim(`last run`)} ${bold(lastRun)}
         - ${dim(`route hash`)} ${bold(cache.hash)}

`);
    if (!ok) {
      return [];
    }
  }
  return routes;
};