Redux Persist script that convert the double-encoded persisted reducer state files into normal JSON files

convert-persist-state-to-json.js

/* eslint-disable no-console */
const fs = require('fs');
const path = require('path');

/**
 * Redux Persist script that convert the double-encoded persisted reducer state files into normal JSON files.
 * Usage: node convert-persist-state-to-json.js /tmp/Documents/persistStore
 * generates several files:
 *   persistStore/persist-root -> persistStore/persist-root.json
 *   persistStore/persist-user -> persistStore/persist-user.json
 *   ...
 * A macOS Shortcuts shortcut can be set up so you can right click to convert a file or folder directly from Finder:
 * -----
 * [ -> Receive [Files and Folders] input from [Quick Actions]          ]
 * [ If there's no input: [Stop and Respond]                            ]
 * -----
 * [ Repeat with each item in [Shortcut Input (File/File)]              ]
 * -----
 * [ Run Shell Script                                                   ]
 * [ ```                                                                ]
 * [ cd /Users/myuser/scripts/                                          ]
 * [ node convert-persist-state-to-json.js [File Path (File/File Path)] ]
 * [ ```                                                                ]
 * [ Shell: [zsh]                                                       ]
 * [ Input: [Shortcut Input (File/File Path)]                           ]
 * [ Pass Input: [to stdin]                                             ]
 * [ Run as Administrator: [ ]                                          ]
 */

const inputFolderOrFiles = process.argv[2];
if (!inputFolderOrFiles) {
  console.log('Usage: node convert-persist-state-to-json.js /tmp/Documents/persistStore');
  console.log('Usage: node convert-persist-state-to-json.js /tmp/Documents/persistStore/persist-user');
  process.exit(1);
}

const files = [];
for (let i = 2; i < process.argv.length; i++) {
  const arg = process.argv[i];
  if (fs.statSync(arg).isDirectory()) {
    console.log(`Reading from ${arg} folder`);
    const filesInDir = fs.readdirSync(arg).filter(
      f => f.startsWith('persist-') && !f.endsWith('.json')
    );
    files.push(...filesInDir.map(f => path.join(arg, f)));
  } else {
    // files separated by one or more whitespaces
    files.push(arg);
  }
}

for (const inPath of files) {
  const inFilename = path.basename(inPath);
  const outFilename = `${inFilename}.json`;
  const outPath = path.join(path.dirname(inPath), outFilename);
  console.log(`Converting ${inFilename} to ${outFilename}`);

  const rawObj = JSON.parse(fs.readFileSync(inPath));
  const parsedObj = {};
  for (const prop in rawObj) {
    if (typeof rawObj[prop] === 'string') {
      parsedObj[prop] = JSON.parse(rawObj[prop]);
    } else {
      parsedObj[prop] = rawObj[prop];
    }
  }
  fs.writeFileSync(outPath, JSON.stringify(parsedObj, null, 2), { encoding: 'utf8' });
}

console.log('Done');