a tool to check what's missing from a language

src/i18n/compare.js

@@ -0,0 +1,27 @@
+#!/usr/bin/env node
+const arg = process.argv[2]
+const english = require('./en.json')
+const foreign = require(`./${arg}.json`)
+
+function walker (a, b, path = []) {
+  Object.keys(a).forEach(k => {
+    const aVal = a[k]
+    const bVal = b[k]
+    const aType = typeof aVal
+    const bType = typeof bVal
+    const currentPath = [...path, k]
+    const article = aType[0] === 'o' ? 'an' : 'a'
+
+    if (bType === 'undefined') {
+      console.log(`Foreign language is missing ${article} ${aType} at path ${currentPath.join('.')}`)
+    } else if (aType === 'object') {
+      if (bType !== 'object') {
+        console.log(`Type mismatch! English has ${aType} while foreign has ${bType} at path ${currentPath.join['.']}`)
+      } else {
+        walker(aVal, bVal, currentPath)
+      }
+    }
+  })
+}
+
+walker(english, foreign)