fix(ci): fix heroku, deploy only demo/dist (#3441)

.travis.yml

@@ -136,6 +136,8 @@ jobs:
         on: development
     - stage: deploy
       script: npm run build:dynamic
+      before_deploy:
+        - cd ./demo/dist
       deploy:
         provider: heroku
         api_key: $HEROKU_API_KEY

package.json

@@ -42,10 +42,11 @@
     "e2e-cross": "SAUCE=true npm run e2e",
     "e2e-bdd": "protractor ./protractor.cucumber.js",
     "view-stats": "webpack-bundle-analyzer demo/dist/stats.json",
-    "build:dynamic": "run-s build link build:client-and-server-bundles webpack:server",
+    "build:dynamic": "run-s build link build:client-and-server-bundles webpack:server configure-heroku",
     "serve:dynamic": "node demo/dist/server.js",
     "build:client-and-server-bundles": "ng build -bh / --prod --env=server && ng build -bh / --prod --env=server --app 1 --output-hashing=false",
-    "webpack:server": "webpack --config ./scripts/universal/webpack.server.config.js --progress --colors"
+    "webpack:server": "webpack --config ./scripts/universal/webpack.server.config.js --progress --colors",
+    "configure-heroku": "node scripts/universal/configure-heroku.js"
   },
   "main": "bundles/ngx-bootstrap.umd.js",
   "module": "index.js",

scripts/universal/configure-heroku.js

@@ -0,0 +1,5 @@
+const fs = require('fs-extra');
+const path = require('path');
+
+fs.writeFileSync(path.join(process.cwd(), 'demo/dist/Procfile'), 'web: node server.js', 'utf8');
+fs.writeFileSync(path.join(process.cwd(), 'demo/dist/package.json'), '{"name": "ngx-universal", "version": "1.0.0" }', 'utf8');

scripts/universal/server.ts

@@ -18,7 +18,7 @@ const app = express();
 app.use(compression());
 
 const PORT = process.env.PORT || 3000;
-const DIST_FOLDER = join(process.cwd(), 'demo/dist');
+const DIST_FOLDER = join(process.cwd(), process.env.DYNO ? './' : 'demo/dist');
 
 // Our index.html we'll use as our template
 const template = readFileSync(join(DIST_FOLDER, 'browser', 'index.html')).toString();