Generate production locales using 'compare-locales'

package.json

@@ -46,13 +46,15 @@
   "license": "MPL-2.0",
   "repository": "mozilla/send",
   "availableLanguages": [
-    "en-US",
-    "zh-TW",
-    "zh-CN",
     "cs",
+    "cy",
+    "de",
+    "dsb",
+    "en-US",
+    "es-MX",
     "fr",
     "fy-NL",
-    "de",
+    "hsb",
     "hu",
     "it",
     "ja",
@@ -60,19 +62,14 @@
     "ms",
     "nb-NO",
     "nn-NO",
-    "pt-PT",
     "pt-BR",
+    "pt-PT",
     "ru",
     "sk",
     "sl",
-    "dsb",
-    "hsb",
-    "es-CL",
-    "es-ES",
-    "es-MX",
     "sv-SE",
-    "tr",
-    "cy"
+    "zh-CN",
+    "zh-TW"
   ],
   "scripts": {
     "build": "npm-run-all build:*",
@@ -80,6 +77,7 @@
     "build:download": "browserify frontend/src/download.js -g uglifyify -o public/download.js",
     "build:version": "node scripts/version",
     "build:l10n": "cp node_modules/l20n/dist/web/l20n.min.js public",
+    "get-prod-locales": "node scripts/get-prod-locales",
     "dev": "npm run build && npm start",
     "format": "prettier '{frontend/src/,scripts/,server/,test/**/!(bundle)}*.js' 'public/*.css' --single-quote --write",
     "lint": "npm-run-all lint:*",

scripts/get-prod-locales.js

@@ -0,0 +1,43 @@
+const { exec } = require('child_process');
+const fs = require('fs');
+
+const pkg = require('../package.json');
+const availableLanguages = pkg.availableLanguages.sort();
+
+const compareLocales =
+  'compare-locales l10n.toml . `ls public/locales` --data=json';
+
+exec(compareLocales, (err, stdout, stderr) => {
+  if (err) {
+    console.error(err);
+    process.exit(1);
+  }
+  const missingLocales = (current, package) =>
+    current.filter(locale => !package.includes(locale));
+  const { summary } = JSON.parse(stdout);
+  const locales = Object.keys(summary)
+    .filter(locale => {
+      const loc = summary[locale];
+      const hasMissing = loc.hasOwnProperty('missing');
+      const hasErrors = loc.hasOwnProperty('errors');
+      return !hasMissing && !hasErrors;
+    })
+    .sort();
+
+  if (locales.join(',') !== availableLanguages.join(',')) {
+    const missingLocales = missingLocales(locales, availableLanguages);
+    console.log('current 100%:', JSON.stringify(locales));
+    console.log('package.json:', JSON.stringify(availableLanguages));
+    console.log('missing prod:', JSON.stringify(missingLocales));
+
+    if (process.argv.includes('--write')) {
+      const pkgPath = require.resolve('../package.json');
+      pkg.availableLanguages = locales;
+      const str = JSON.stringify(pkg, null, 2) + '\n';
+      console.log('Updating /package.json availableLanguages');
+      fs.writeFileSync(pkgPath, str, 'utf-8');
+    }
+  } else {
+    console.log('Production locales are up to date!');
+  }
+});