Create doc-exports metadata generator script

- add script to generate metadata file for doc-exports repository
- fix metadata issues which became visible with that script

otc_metadata/services.py

@@ -95,3 +95,37 @@ class Services(object):
                             res_doc["repository"] = srv_env["repo"]
                 res.append(res_doc)
         return res
+
+    def docs_html_by_category(self, environment):
+        """Generate structure for doc-exports repository
+
+        """
+        doc_struct = dict()
+        services = self.service_dict
+        for srv in self.all_services:
+            doc_struct.setdefault(srv["service_category"], [])
+            srv_res = dict(
+                service_title=srv['service_title'],
+                service_type=srv['service_type'],
+                docs=[]
+            )
+            if "repositories" in srv and environment:
+                for repo in srv["repositories"]:
+                    if "environment" in repo and repo["environment"] == environment:
+                        srv_res["repository"] = repo["repo"]
+            for doc in self.all_docs:
+                if (
+                    "html_location" in doc
+                    and doc["service_type"] == srv_res["service_type"]
+                ):
+                    doc_res = dict(
+                        html_location=doc["html_location"],
+                        rst_location=doc["rst_location"],
+                        title=doc["title"],
+                        pdf_name=doc["pdf_name"]
+                    )
+                    srv_res["docs"].append(doc_res)
+            if len(srv_res["docs"]) > 0:
+                doc_struct[srv["service_category"]].append(srv_res)
+
+        return dict(categories=doc_struct)