chore: add extract_metadata task to CI (#859)

.travis.yml

@@ -37,6 +37,7 @@ env:
     # Order: a slower build first, so that we don't occupy an idle travis worker waiting for others to complete.
     - MODE=lint
     - MODE=circular_deps
+    - MODE=extract_metadata
     - MODE=e2e
     - MODE=saucelabs_required
     - MODE=browserstack_required

scripts/ci/build-and-test.sh

@@ -11,15 +11,15 @@ source scripts/ci/sources/mode.sh
 source scripts/ci/sources/tunnel.sh
 
 start_tunnel
-npm run build
-npm run inline-resources
 
 wait_for_tunnel
 if is_lint; then
   npm run tslint  
   npm run ci:forbidden-identifiers
   npm run stylelint
 elif is_circular_deps_check; then
+  # Build first because madge needs the JavaScript output.
+  ng build
   npm run check-circular-deps
 elif is_e2e; then
   # Start up the e2e app. This will take some time.
@@ -32,12 +32,24 @@ elif is_e2e; then
   echo "Waiting for e2e app to start"
   while [ ! -f ./dist/components/button/button.js ]; do
     sleep 2
+    echo -n ".."
   done
 
+  echo "\nInlining resources"
+  npm run inline-resources
+
   # Run the e2e tests on the served e2e app.
   echo "Starting e2e tests"
   ng e2e
+elif is_extract_metadata; then
+  # Run `tsc` first so that the directory structure in dist/ matches what ngc expects.
+  ./node_modules/.bin/tsc -p ./src/demo-app/
+  ./node_modules/.bin/ngc -p ./src/demo-app/
 else
+  # Unit tests
+  npm run build
+  npm run inline-resources
+
   karma start test/karma.conf.js --single-run --no-auto-watch --reporters='dots'
 fi
 teardown_tunnel

scripts/ci/sources/mode.sh

@@ -12,3 +12,7 @@ is_lint() {
 is_circular_deps_check() {
   [[ "$MODE" = circular_deps ]]
 }
+
+is_extract_metadata() {
+  [[ "$MODE" = extract_metadata ]]
+}