Move shared modules outside of versions (#870)

* Move shared modules outside of versions

This moves the top level modules outside of v1 and v2 to remove
duplication.

* Rebase

* Move auth

* Rebase

.generator/src/generator/cli.py

@@ -71,6 +71,7 @@ def cli(input, output):
         "exceptions.py": env.get_template("exceptions.j2"),
         "model_utils.py": env.get_template("model_utils.j2"),
         "rest.py": env.get_template("rest.j2"),
+        "configuration.py": env.get_template("base_configuration.j2"),
     }
 
     apis = openapi.apis(spec)
@@ -79,10 +80,11 @@ def cli(input, output):
     package = output / config["packageName"].replace(".", "/")
     package.mkdir(parents=True, exist_ok=True)
 
+    top_package = package.parent
     for name, template in extra_files.items():
-        filename = package / name
+        filename = top_package / name
         with filename.open("w") as fp:
-            fp.write(template.render(apis=apis, models=models))
+            fp.write(template.render())
 
     for name, model in models.items():
         filename = formatter.snake_case(name) + ".py"

.generator/src/generator/templates/api.j2

@@ -1,8 +1,8 @@
 {% include "api_info.j2" %}
 
 
-from {{ config["packageName"] }}.api_client import ApiClient, Endpoint as _Endpoint
-from {{ config["packageName"] }}.model_utils import (
+from datadog_api_client.api_client import ApiClient, Endpoint as _Endpoint
+from datadog_api_client.model_utils import (
     date,
     datetime,
     file_type,

.generator/src/generator/templates/api_client.j2

@@ -13,10 +13,9 @@ from urllib.parse import quote
 from urllib3.fields import RequestField
 
 
-from {{ config["packageName"] }} import rest
-from {{ config["packageName"] }}.configuration import Configuration
-from {{ config["packageName"] }}.exceptions import ApiTypeError, ApiValueError
-from {{ config["packageName"] }}.model_utils import (
+from datadog_api_client import rest
+from datadog_api_client.exceptions import ApiTypeError, ApiValueError
+from datadog_api_client.model_utils import (
     ModelNormal,
     ModelSimple,
     ModelComposed,
@@ -52,9 +51,7 @@ class ApiClient(object):
 
     _pool = None
 
-    def __init__(self, configuration=None, cookie=None, pool_threads=1):
-        if configuration is None:
-            configuration = Configuration.get_default_copy()
+    def __init__(self, configuration, cookie=None, pool_threads=1):
         self.configuration = configuration
         self.pool_threads = pool_threads