1var fs = require('fs');
 2var glob = require('glob');
 3
 4glob(
 5  '**/*.{js,jsx,ts,tsx}',
 6  {ignore: ['**/node_modules/**'], absolute: true},
 7  function (err, filesPaths) {
 8    if (err) {
 9      console.log(err);
10      return;
11    }
12
13    const i18nSourceFileRelativePath = '/locales/en.json';
14    const i18nSourceFilePath = `${__dirname}${i18nSourceFileRelativePath}`;
15
16    const sourceJson = fs.readFileSync(i18nSourceFilePath, 'UTF-8');
17    const preSourceTranslations = JSON.parse(sourceJson);
18    const preKeys = Object.keys(preSourceTranslations);
19
20    const keysToKeep = preKeys.filter(k => k.split('.')[0] === 'PROTECTED');
21    filesPaths.forEach(filePath => {
22      const content = fs.readFileSync(filePath, 'UTF-8');
23
24      preKeys.forEach(key => {
25        if (content.includes(key) && !keysToKeep.includes(key)) {
26          keysToKeep.push(key);
27
28          //supports plurals for english source translation
29          if (preKeys.includes(`${key}_plural`)) {
30            keysToKeep.push(`${key}_plural`);
31          }
32        }
33      });
34    });
35
36    const sourceTranslationsToKeep = {};
37    keysToKeep.sort();
38    keysToKeep.forEach(key => {
39      sourceTranslationsToKeep[key] = preSourceTranslations[key];
40    });
41
42    const sourceJsonToKeep = JSON.stringify(sourceTranslationsToKeep, null, 4);
43    fs.writeFileSync(i18nSourceFilePath, sourceJsonToKeep);
44    console.warn(
45      `This script is a workaround, ${
46        preKeys.length - keysToKeep.length
47      } keys were removed from the ${i18nSourceFileRelativePath}, please make sure to review them before running i18n-format and adapt the code to avoid future deletion.`
48    );
49  }
50);