entrypoint.js

const fs = require("fs");
const path = require("path");

/**
 * @description Recursively copies a directory or file from source to destination,
 * handling directories by creating them and their contents, and files by copying
 * them with optional cloning.
 *
 * @param {string} src - The source directory or file path.
 *
 * @param {string} dest - The destination path to copy or create files/directories.
 */
var copyRecursiveSync = function(src, dest) {
  console.log(`Starting to copy from ${src} to ${dest}`);
  var exists = fs.existsSync(src);
  var stats = exists && fs.statSync(src);
  var isDirectory = exists && stats.isDirectory();
  if (isDirectory) {
    console.log(`Creating directory: ${dest}`);
    fs.mkdirSync(dest, { recursive: true });
    fs.readdirSync(src).forEach(function(childItemName) {
      // Copies files recursively.

      copyRecursiveSync(path.join(src, childItemName),
                        path.join(dest, childItemName));
    });
  } else {
    console.log(`Copying file from ${src} to ${dest}`);
    fs.copyFileSync(src, dest, fs.constants.COPYFILE_FICLONE);
  }
};

// Define sources and destinations for both themes named "casper" and "source".
          // Get an environment variable that specifies the path for sourcePath + "/content/themes" 
let sourcePath = process.env.GHOST_CONTENT_ORIGINAL + "/themes";
console.log("Source path: ", sourcePath);
let destinationPath = process.env.GHOST_CONTENT + "/themes/";
console.log("Destination path: ", destinationPath);

// Wrap the function in a try/catch block to handle any errors.
try {
  copyRecursiveSync(sourcePath, destinationPath);
  console.log("Copy successful!");
}
catch (error) {
  console.error("Error copying files: ", error);
}

// Run Ghost from the current version.
require("./index.js");