webserver: Coding Style.

- Extract get_summary function.

eris/eris/webserver.py

@@ -111,14 +111,7 @@ def run(server_class=http.server.HTTPServer, handler_class=Webserver, port=8080)
     httpd.serve_forever()
 
 
-def main():
+def get_summary(project_path):
-    global main_page, summary_page, index
-    if len(sys.argv) == 1:
-        print(USAGE)
-        sys.exit(1)
-    project_path = os.path.abspath(sys.argv[1])
-    os.chdir(project_path)
-    project_name = os.path.basename(project_path)
     pickle_path = os.path.join(project_path, tools.CACHE_PATH,
                                "summary.pickle")
     with gzip.open(pickle_path, "rb") as file_:
@@ -130,6 +123,18 @@ def main():
     if summary.is_directory_sort:
         summary.is_directory_sort = False
         summary.sort_entries()
+    return summary
+
+
+def main():
+    global main_page, summary_page, index
+    if len(sys.argv) == 1:
+        print(USAGE)
+        sys.exit(1)
+    project_path = os.path.abspath(sys.argv[1])
+    os.chdir(project_path)
+    summary = get_summary(project_path)
+    project_name = os.path.basename(project_path)
     summary_page = make_summary_page(project_name, summary)
     index = {}
     for row in summary._entries: