Improve i18n service

Signed-off-by: AllForNothing <sshijun@vmware.com>

make/photon/portal/Dockerfile

@@ -25,6 +25,7 @@ COPY src/portal /build_dir
 
 ENV NPM_CONFIG_REGISTRY=${npm_registry}
 RUN npm install --unsafe-perm
+RUN npm run generate-build-timestamp
 RUN node --max_old_space_size=2048 'node_modules/@angular/cli/bin/ng' build --prod
 
 FROM ${harbor_base_namespace}/harbor-portal-base:${harbor_base_image_version}

src/portal/package.json

@@ -19,7 +19,8 @@
     "build": "ng build --aot",
     "release": "ng build --prod",
     "build-mock-api-server": "tsc -p server",
-    "mock-api-server": "npm run build-mock-api-server && node server/dist/server/src/mock-api.js"
+    "mock-api-server": "npm run build-mock-api-server && node server/dist/server/src/mock-api.js",
+    "generate-build-timestamp": "node scripts/generate-build-timestamp.js"
   },
   "private": true,
   "dependencies": {

src/portal/scripts/generate-build-timestamp.js

@@ -0,0 +1,19 @@
+/**
+ * generate timestamp for each production build
+ */
+const fs = require('fs');
+const data = fs.readFileSync('src/environments/environment.prod.ts', 'utf8').split('\n');
+
+let buildTimestampIndex = 0;
+data.forEach((item,index) => {
+  if(item.indexOf('buildTimestamp') !== -1) {
+    buildTimestampIndex = index;
+  }
+});
+if (buildTimestampIndex > 0) {
+  const timestamp = new Date().getTime();
+  data[buildTimestampIndex] = `  buildTimestamp: ${timestamp},`;
+  fs.writeFileSync('src/environments/environment.prod.ts', data.join('\n'), 'utf8');
+}
+
+

src/portal/src/environments/environment.prod.ts

@@ -12,5 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 export const environment = {
-  production: true
+  production: true,
+  buildTimestamp: 0,
 };

src/portal/src/environments/environment.ts

@@ -17,5 +17,6 @@
 // The list of which env maps to which file can be found in `angular-cli.json`.
 
 export const environment = {
-  production: false
+  production: false,
+  buildTimestamp: 0,
 };

src/portal/src/lib/utils/shared/shared.module.ts

@@ -11,11 +11,15 @@ import { TranslateHttpLoader } from "@ngx-translate/http-loader";
 import { MyMissingTranslationHandler } from "../../i18n/missing-trans.handler";
 import { TranslatorJsonLoader } from "../../i18n/local-json.loader";
 import { ClipboardModule } from "../../components/third-party/ngx-clipboard";
+import { environment } from '../../../environments/environment';
 
 export function GeneralTranslatorLoader(http: HttpClient, config: IServiceConfig) {
     if (config && config.langMessageLoader === 'http') {
-        let prefix: string = config.langMessagePathForHttpLoader ? config.langMessagePathForHttpLoader : "i18n/lang/";
+        const prefix: string = config.langMessagePathForHttpLoader ? config.langMessagePathForHttpLoader : "i18n/lang/";
         let suffix: string = config.langMessageFileSuffixForHttpLoader ? config.langMessageFileSuffixForHttpLoader : "-lang.json";
+        if (environment && environment.buildTimestamp) {
+            suffix += `?buildTimeStamp=${environment.buildTimestamp}`;
+        }
         return new TranslateHttpLoader(http, prefix, suffix);
     } else {
         return new TranslatorJsonLoader(config);