Merge "Fix Spark installation fails when parsing spark-env.sh" into stable/liberty

releasenotes/notes/spark-installation-5ed2c7ca75f79de1.yaml

@@ -0,0 +1,3 @@
+---
+fixes:
+  - Escape unhandled unicode characters in environment configuration files

sahara/plugins/mapr/domain/configuration_file.py

@@ -143,7 +143,7 @@ class EnvironmentConfig(BaseConfigurationFile):
 
     def parse(self, content):
         for line in content.splitlines():
-            line = six.text_type(line.strip())
+            line = self._escape(line)
             match = self._regex.match(line)
             if match:
                 name, value = match.groups()
@@ -153,6 +153,16 @@ class EnvironmentConfig(BaseConfigurationFile):
             else:
                 self._lines.append(line)
 
+    @staticmethod
+    def _escape(string):
+        try:
+            string = string.decode("utf-8")
+        except AttributeError:
+            pass
+        string = six.text_type(string).strip()
+        string = string.replace("\"", "")
+        return string
+
     def render(self):
         result = []
         for line in self._lines: