Exclude vendor JS in mozmarket when necessary

lib/settings_base.py

@@ -1455,3 +1455,8 @@ IN_TEST_SUITE = False
 # Until bug 753421 gets fixed, we're skipping ES tests. Sad times. I know.
 # Flip this on in your local settings to experience the joy of ES tests.
 RUN_ES_TESTS = False
+
+# All JS vendor libraries in this list will be excluded from mozmarket.js.
+# For example, if receiptverifier is broken and you need to disable it, add
+# 'receiptverifier' to the list. See also mkt/site/views.py.
+MOZMARKET_VENDOR_EXCLUDE = ['receiptverifier']

mkt/site/tests/test_views.py

@@ -83,6 +83,12 @@ class TestMozmarketJS(amo.tests.TestCase):
         resp = self.render()
         self.assertContains(resp, 'exports.receipts.Verifier')
 
+    @mock.patch.object(settings, 'MOZMARKET_VENDOR_EXCLUDE',
+                       ['receiptverifier'])
+    def test_exclude(self):
+        resp = self.render()
+        self.assertNotContains(resp, 'exports.receipts.Verifier')
+
 
 class TestRobots(amo.tests.TestCase):
 

mkt/site/views.py

@@ -94,9 +94,13 @@ def record(request):
 @cache_page(60 * 60)
 @no_login_required
 def mozmarket_js(request):
-    with open(os.path.join(settings.ROOT, 'vendor', 'js',
-                           'receiptverifier',
-                           'receiptverifier.js'), 'r') as fp:
-        vendor_js = [('receiptverifier', fp.read())]
+    vendor_js = []
+    for lib, path in (('receiptverifier',
+                       'receiptverifier/receiptverifier.js'),):
+        if lib in settings.MOZMARKET_VENDOR_EXCLUDE:
+            continue
+        with open(os.path.join(settings.ROOT,
+                               'vendor', 'js', path), 'r') as fp:
+            vendor_js.append((lib, fp.read()))
     return jingo.render(request, 'site/mozmarket.js', {'vendor_js': vendor_js},
                         content_type='text/javascript')

settings_test.py

@@ -90,3 +90,5 @@ DEBUG_TOOLBAR_CONFIG = {
     'TAG': 'div',
     'ENABLE_STACKTRACES' : False,
 }
+
+MOZMARKET_VENDOR_EXCLUDE = []