Catch error output from jspm api & raise error

sergei-maertens · Aug 29, 2016 · ab7b8c2 · ab7b8c2
1 parent c8331d1
commit ab7b8c2
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/systemjs/__init__.py b/systemjs/__init__.py
@@ -7,7 +7,7 @@
 import subprocess
 
 
-VERSION = (1, 4, 0, 'beta', 3)
+VERSION = (1, 4, 0, 'beta', 4)
 
 
 default_app_config = 'systemjs.apps.SystemJSConfig'

diff --git a/systemjs/base.py b/systemjs/base.py
@@ -177,6 +177,10 @@ def bundle(self):
         return rel_path
 
 
+class TraceError(Exception):
+    pass
+
+
 class SystemTracer(object):
 
     def __init__(self, node_path=None):
@@ -210,6 +214,8 @@ def trace(self, app):
                 env=self.env, universal_newlines=True, cwd=self._package_json_dir
             )
             out, err = process.communicate()
+            if err:
+                raise TraceError(err)
             self._trace_cache[app] = json.loads(out)
         return self._trace_cache[app]