more components updated/translated

scripts/flatten-messages.js

@@ -8,12 +8,18 @@ var path = require('path');
 var globSync = require('glob').sync;
 var mkdirpSync = require('mkdirp').sync;
 
+const DEFAULT_TRANSLATION = 'en.json';
 const MESSAGES_PATTERN = './src/i18n/src/**/*.json';
 const LANG_DIR         = './src/i18n/';
 const LANG_PATTERN     = './src/i18n/*.json';
 const FINAL_FILE       = './src/messages.json';
 
-// Read message files generated by react-intl-babel-plugin.
+const MISSING_MARKER = ':!![MISSING]!!:';
+const OBSOLETE_MARKER = ':!![OBSOLETE]!!:';
+
+// The react-intl-babel-plugin saves extracted messages
+// into files, one fine per component. Rewrite them into
+// a single file en.json.
 let messages = globSync(MESSAGES_PATTERN)
   .map((filename) => fs.readFileSync(filename, 'utf8'))
   .map((file) => JSON.parse(file))
@@ -28,17 +34,59 @@ let messages = globSync(MESSAGES_PATTERN)
     return collection;
   }, {});
 
-// Write English translation.
-let filename = path.join(LANG_DIR, 'en.json');
+let filename = path.join(LANG_DIR, DEFAULT_TRANSLATION);
 mkdirpSync(path.dirname(filename));
 fs.writeFileSync(filename, JSON.stringify(messages, null, 2));
 
+// Find messages present in en.json but missing in translations and vice versa.
+// Mark missing or obsolete messages as such in translation files.
+globSync(LANG_PATTERN)
+  .map((filename) => {
+    const parts = filename.split('/');
+    if (parts[parts.length-1] != DEFAULT_TRANSLATION) {
+      const translated = JSON.parse(fs.readFileSync(filename, 'utf8'));
+      // Find missing messages.
+      Object.entries(messages).forEach((ent) => {
+        if (!translated.hasOwnProperty(ent[0])) {
+          translated[ent[0]] = MISSING_MARKER + ent[1];
+        }
+      });
+      // Find no longer needed messages.
+      Object.entries(translated).forEach((ent) => {
+        if (!messages.hasOwnProperty(ent[0])) {
+          let val = translated[ent[0]];
+          if (val.indexOf(MISSING_MARKER) == 0) {
+            val = val.substring(0, MISSING_MARKER.length);
+          }
+          if (val.indexOf(OBSOLETE_MARKER) != 0) {
+            val = OBSOLETE_MARKER + val;
+          }
+          translated[ent[0]] = val;
+        }
+      });
+      fs.writeFileSync(filename, JSON.stringify(translated, null, 2));
+    }
+  });
+
+// Combine all translations into a single json {"lang_1": {...}, "lang_2: {...}"};
+// Remove messages marked as missing or obsolete.
+
 // Read all translations.
 messages = globSync(LANG_PATTERN)
   .map((filename) => {
     const parts = filename.split('/');
     const locale = parts[parts.length - 1].split('.json')[0];
-    return { [locale]: JSON.parse(fs.readFileSync(filename, 'utf8')) };
+    const translated = JSON.parse(fs.readFileSync(filename, 'utf8'));
+
+    // Strip messages prefixed with MISSING or OBSOLETE markers.
+    for (let id in translated) {
+      if (translated[id].indexOf(OBSOLETE_MARKER) == 0 ||
+          translated[id].indexOf(MISSING_MARKER) == 0) {
+        delete translated[id];
+      }
+    }
+
+    return { [locale]: translated };
   })
   .reduce((collection, descriptors) => {
     return { ...collection, ...descriptors };