@coat/cli/build/sync/get-current-files.js

TODO: See #3

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getCurrentFiles = getCurrentFiles;
var _fs = require("fs");
/**
 * Returns the disk content for the given file paths if they exist.
 * If a file does not exist, the value for the path will be undefined.
 *
 * @param filePaths The files that shall be retrieved
 */
async function getCurrentFiles(filePaths) {
  const currentFiles = await Promise.all(filePaths.map(async filePath => {
    // Try to retrieve the file contents
    try {
      const content = await _fs.promises.readFile(filePath, "utf-8");

      // Return the path and the content as a tuple
      // to match them back together later in an object
      return [filePath, content];
    } catch (error) {
      if (error.code === "ENOENT") {
        // File doesn't exist, return the key with an undefined content
        return [filePath];
      }

      // A different error occurred, e.g. missing read permissions
      // This error should be thrown back to the user
      throw error;
    }
  }));
  return Object.fromEntries(currentFiles);
}