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unused-i18n-keys.ts
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unused-i18n-keys.ts
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import fs from 'fs';
import glob from 'glob';
// Step 1: Extract keys from translation files
let translationKeys: string[] = [];
// Use glob to get all .json files in the translations directory
let translationFiles = glob.sync('src/shared/locales/en/*.json');
// Exclude files based on filename
const excludedFiles = ['source.json', 'ui.json']; // replace with your filenames
translationFiles = translationFiles.filter(
(file) => !excludedFiles.includes(file.split('/').pop())
);
translationFiles.forEach((file) => {
const translationFile = fs.readFileSync(file);
translationKeys = [
...translationKeys,
...Object.keys(JSON.parse(translationFile.toString())),
];
});
// Step 2: Parse source code to find used keys
const usedKeys: string[] = [];
// Use glob to get all .js and .jsx files in the project directory
const files = glob.sync('src/v3/**/*.+(js|jsx|ts|tsx)');
files.forEach((file) => {
const sourceCode = fs.readFileSync(file, 'utf-8');
translationKeys.forEach((key) => {
if (sourceCode.includes(key)) {
usedKeys.push(key);
}
});
});
// Step 3: Find unused keys
const unusedKeys = translationKeys.filter((key) => !usedKeys.includes(key));
console.log('Unused keys:', JSON.stringify(unusedKeys));