index.js

const { normalize } = require("path");
const debounceFn = require("debounce-fn");
const chokidar = require("chokidar");
const execa = require("execa");

const { logTitle } = require("./lib/helpers/logger");

const prepareFolders = require("./lib/steps/prepareFolders");
const copyPublicFiles = require("./lib/steps/copyPublicFiles");
const copyNextAssets = require("./lib/steps/copyNextAssets");
const setupPages = require("./lib/steps/setupPages");
const setupImageFunction = require("./lib/steps/setupImageFunction");
const setupRedirects = require("./lib/steps/setupRedirects");
const setupHeaders = require("./lib/steps/setupHeaders");
const {
  NETLIFY_PUBLISH_PATH,
  NETLIFY_FUNCTIONS_PATH,
  SRC_FILES,
} = require("./lib/config");

const build = (functionsPath, publishPath) => {
  const trackNextOnNetlifyFiles = prepareFolders({
    functionsPath,
    publishPath,
  });

  copyPublicFiles(publishPath);

  copyNextAssets(publishPath);

  setupPages({ functionsPath, publishPath });

  setupImageFunction(functionsPath);

  setupRedirects(publishPath);

  setupHeaders(publishPath);

  trackNextOnNetlifyFiles();

  logTitle("✅ Success! All done!");
};

const watch = (functionsPath, publishPath) => {
  logTitle(`👀 Watching source code for changes`);

  const runBuild = debounceFn(
    () => {
      try {
        execa.sync("next", ["build"], { stdio: "inherit" });
        build(functionsPath, publishPath);
      } catch (e) {
        console.log(e);
      }
    },
    {
      wait: 3000,
    }
  );

  chokidar.watch(SRC_FILES).on("all", runBuild);
};

/** options param:
 * {
 *   functionsDir: string to path
 *   publishDir: string to path
 *   watch: { directory: string to path }
 * }
 */

const nextOnNetlify = (options = {}) => {
  const functionsPath = normalize(
    options.functionsDir || NETLIFY_FUNCTIONS_PATH
  );
  const publishPath = normalize(options.publishDir || NETLIFY_PUBLISH_PATH);

  options.watch
    ? watch(functionsPath, publishPath)
    : build(functionsPath, publishPath);
};

module.exports = nextOnNetlify;