feat: basic translations extract

common/translations-cli/extract.js

@@ -0,0 +1,61 @@
+//@ts-check
+const fs = require('fs');
+const { promisify } = require('util');
+
+const { getFiles } = require('./helpers');
+
+const readFilePromise = promisify(fs.readFile);
+
+const translationRegex = /_t\(\s*['"]([^'"]+)['"]\s*,\s*\{\s*defaultMessage\s*:\s*['"]([^'"]+)['"]\s*\}/g;
+
+/**
+ * @param {string} file
+ *
+ * @returns {Promise<Record<string, string>>}
+ */
+async function extractTranslationsFromFile(file) {
+  /** @type {Record<string, string>} */
+  const translations = {};
+  const content = await readFilePromise(file, 'utf-8');
+  let match;
+
+  while ((match = translationRegex.exec(content)) !== null) {
+    const [_, key, defaultText] = match;
+    translations[key] = defaultText;
+  }
+
+  return translations;
+}
+
+/**
+ * @param {string[]} directories
+ * @param {string[]} extensions
+ *
+ * @returns {Promise<Record<string, string>>}
+ */
+async function extractAllTranslations(directories, extensions) {
+  try {
+    /** @type {Record<string, string>} */
+    const allTranslations = {};
+
+    for (const dir of directories) {
+      const files = await getFiles(dir, extensions);
+
+      for (const file of files) {
+        const fileTranslations = await extractTranslationsFromFile(file);
+        Object.assign(allTranslations, fileTranslations);
+      }
+    }
+
+    console.log(`Total translations found: ${Object.keys(allTranslations).length}`);
+
+    return allTranslations;
+  } catch (error) {
+    console.error('Error extracting translations:', error);
+    throw error;
+  }
+}
+module.exports = {
+  extractTranslationsFromFile,
+  extractAllTranslations,
+};