chore: fail build if a command from tsc-watch fails.

This bug was introduced with eba6e7946d
to integrate the compiler_cli into the build properly.

Closes #8480

scripts/ci-lite/test_js.sh

@@ -18,7 +18,7 @@ cd ../..
 echo 'travis_fold:start:test.unit.tools'
 
 # Run unit tests in tools
-node ./dist/tools/tsc-watch/ tools triggerCmds
+node ./dist/tools/tsc-watch/ tools runCmdsOnly
 
 echo 'travis_fold:end:test.unit.tools'
 
@@ -26,7 +26,7 @@ echo 'travis_fold:end:test.unit.tools'
 echo 'travis_fold:start:test.unit.node'
 
 # Run unit tests in node
-node ./dist/tools/tsc-watch/ node triggerCmds
+node ./dist/tools/tsc-watch/ node runCmdsOnly
 
 echo 'travis_fold:end:test.unit.node'
 

tools/tsc-watch/index.ts

@@ -103,8 +103,8 @@ if (platform == 'node') {
 
 if (runMode === 'watch') {
   tscWatch.watch();
-} else if (runMode === 'triggerCmds') {
-  tscWatch.triggerCmds();
+} else if (runMode === 'runCmdsOnly') {
+  tscWatch.runCmdsOnly();
 } else {
   tscWatch.run();
 }

tools/tsc-watch/tsc_watch.ts

@@ -81,6 +81,11 @@ export class TscWatch {
     this.watch();
   }
 
+  runCmdsOnly() {
+    this.runOnce = true;
+    this.triggerCmds();
+  }
+
   consumeLine(buffer: Buffer, isStdError: boolean) {
     var line = '' + buffer;
     if (contains(line, this.start)) {