Drop support for db upgrade from before 1.0

- define jupyterhub oauth client during token app

jupyterhub/app.py

@@ -214,6 +214,8 @@ class NewToken(Application):
         hub = JupyterHub(parent=self)
         hub.load_config_file(hub.config_file)
         hub.init_db()
+        hub.init_hub()
+        hub.init_oauth()
 
         def init_users():
             loop = asyncio.new_event_loop()

jupyterhub/tests/populate_db.py

@@ -62,36 +62,33 @@ def populate_db(url):
         db.commit()
 
     # create some oauth objects
-    if jupyterhub.version_info >= (0, 8):
-        # create oauth client
-        client = orm.OAuthClient(identifier='oauth-client')
-        db.add(client)
-        db.commit()
-        code = orm.OAuthCode(client_id=client.identifier)
-        db.add(code)
-        db.commit()
-        if jupyterhub.version_info < (2, 0):
-            Token = orm.OAuthAccessToken
-        else:
-            Token = orm.APIToken
-        access_token = Token(
-            client_id=client.identifier,
-            user_id=user.id,
-            grant_type=orm.GrantType.authorization_code,
-        )
-        db.add(access_token)
-        db.commit()
+    client = orm.OAuthClient(identifier='oauth-client')
+    db.add(client)
+    db.commit()
+    code = orm.OAuthCode(client_id=client.identifier)
+    db.add(code)
+    db.commit()
+    if jupyterhub.version_info < (2, 0):
+        Token = orm.OAuthAccessToken
+    else:
+        Token = orm.APIToken
+    access_token = Token(
+        client_id=client.identifier,
+        user_id=user.id,
+        grant_type=orm.GrantType.authorization_code,
+    )
+    db.add(access_token)
+    db.commit()
 
     # set some timestamps added in 0.9
-    if jupyterhub.version_info >= (0, 9):
-        assert user.created
-        assert admin.created
-        # set last_activity
-        user.last_activity = datetime.utcnow()
-        spawner = user.orm_spawners['']
-        spawner.started = datetime.utcnow()
-        spawner.last_activity = datetime.utcnow()
-        db.commit()
+    assert user.created
+    assert admin.created
+    # set last_activity
+    user.last_activity = datetime.utcnow()
+    spawner = user.orm_spawners['']
+    spawner.started = datetime.utcnow()
+    spawner.last_activity = datetime.utcnow()
+    db.commit()
 
 
 if __name__ == '__main__':

jupyterhub/tests/test_db.py

@@ -36,7 +36,7 @@ def generate_old_db(env_dir, hub_version, db_url):
     check_call([env_py, populate_db, db_url])
 
 
-@pytest.mark.parametrize('hub_version', ['0.7.2', '0.8.1', '0.9.4'])
+@pytest.mark.parametrize('hub_version', ['1.0.0', "1.2.2", "1.3.0"])
 async def test_upgrade(tmpdir, hub_version):
     db_url = os.getenv('JUPYTERHUB_TEST_DB_URL')
     if db_url: