Ensure a non-zero exit status if a pipe fails

kgryte · kgryte · commit d4bb67f1f25d · 2017-09-06T16:08:46.000-07:00
diff --git a/tools/make/lib/test-browsers/Makefile b/tools/make/lib/test-browsers/Makefile
@@ -40,6 +40,7 @@ endif
 # TODO: make robust to long file lists.
 
 test-browsers: $(NODE_MODULES)
+	$(QUIET) set -o pipefail ; \
 	NODE_ENV=$(NODE_ENV_TEST) \
 	NODE_PATH=$(NODE_PATH_TEST) \
 	$(BROWSERIFY) \
diff --git a/tools/make/lib/test-browsers/testling.mk b/tools/make/lib/test-browsers/testling.mk
@@ -23,6 +23,7 @@ BROWSER_TEST_FLAGS ?=
 # [1]: https://github.com/substack/testling
 
 view-testling: $(NODE_MODULES)
+	$(QUIET) set -o pipefail ; \
 	NODE_ENV=$(NODE_ENV_TEST) \
 	$(BROWSERIFY) \
 		$(BROWSERIFY_FLAGS) \
