Address deploy-board lint errors

`ruff` was recently introduced to the precommit checks.

This PR addresses the existing checks for deploy-board:

* Run `ruff check --fix`
* Run `ruff check --fix --unsafe-fixes`
  * Verified the fixes were safe
* Use explicit exceptions
* Remove unused variables and methods
* Remove trailing ws

deploy-board/deploy_board/urls.py

@@ -3,9 +3,9 @@
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
-#  
+#
 #     http://www.apache.org/licenses/LICENSE-2.0
-#    
+#
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -18,9 +18,10 @@
 from django.conf.urls.static import static
 from django.conf import settings
 
+from .settings import IS_PINTEREST
+
 admin.autodiscover()
 
-from .settings import IS_PINTEREST
 
 if IS_PINTEREST:
     urlpatterns = [

deploy-board/deploy_board/webapp/accounts.py

@@ -36,7 +36,7 @@ def get_accounts(report):
 
 def add_account_from_cluster(request, cluster, accounts):
     account_id = cluster.get("accountId")
-    account = None;
+    account = None
     if account_id is not None:
         account = accounts_helper.get_by_cell_and_id(
             request, cluster["cellName"], account_id)

deploy-board/deploy_board/webapp/accounts_views.py

@@ -1,7 +1,7 @@
 from django.shortcuts import render, redirect
 from django.views.generic import View
 
-from .helpers import accounts_helper;
+from .helpers import accounts_helper
 
 class AccountsView(View):
     def get(self, request):

deploy-board/deploy_board/webapp/agent_report.py

@@ -15,10 +15,8 @@
 # -*- coding: utf-8 -*-
 """Helper functions to help generate agents views
 """
-from deploy_board.webapp.helpers import agents_helper
 from .common import is_agent_failed
 from .helpers import builds_helper, deploys_helper, environs_helper, environ_hosts_helper
-from deploy_board.settings import IS_PINTEREST
 import time
 from collections import OrderedDict
 from functools import cmp_to_key

deploy-board/deploy_board/webapp/auth.py

@@ -82,25 +82,25 @@ class OAuthExpiredTokenException(Exception):
 class OAuthHandler(object):
 
     def token_getter(self, **kwargs):
-        raise NotImplemented
+        raise NotImplementedError
 
     def token_setter(self, token, expires, **kwargs):
-        raise NotImplemented
+        raise NotImplementedError
 
     def state_generator(self, **kwargs):
-        raise NotImplemented
+        raise NotImplementedError
 
     def state_getter(self, **kwargs):
-        raise NotImplemented
+        raise NotImplementedError
 
     def state_setter(self, value, **kwargs):
-        raise NotImplemented
+        raise NotImplementedError
 
     def state_remove(self, **kwargs):
-        raise NotImplemented
+        raise NotImplementedError
 
     def token_remove(self, **kwargs):
-        raise NotImplemented
+        raise NotImplementedError
 
 
 class SessionOauthHandler(OAuthHandler):
@@ -210,7 +210,7 @@ def handle_oauth2_response(self, code, state_with_data, **kwargs):
             data=str(body) if body else None,
             method='POST',
         )
-        if resp.code is 401:
+        if resp.code == 401:
             # When auth.pinadmin.com returns a 401 error. remove token and redirect to / page
             raise OAuthExpiredTokenException("Expired Token")
 

deploy-board/deploy_board/webapp/cluster_view.py

@@ -32,7 +32,7 @@
 
 from .helpers import baseimages_helper, hosttypes_helper, securityzones_helper, placements_helper, \
     autoscaling_groups_helper, groups_helper, cells_helper, arches_helper, accounts_helper
-from .helpers import clusters_helper, environs_helper, environ_hosts_helper, baseimages_helper
+from .helpers import clusters_helper, environs_helper, environ_hosts_helper
 from .helpers.exceptions import NotAuthorizedException, TeletraanException, IllegalArgumentException
 from . import common
 import traceback
@@ -197,6 +197,7 @@ def get(self, request, name, stage):
 
     def post(self, request, name, stage):
         ret = 200
+        exception = None
         log.info("Post to capacity with data {0}".format(request.body))
         try:
             cluster_name = '{}-{}'.format(name, stage)
@@ -218,16 +219,18 @@ def post(self, request, name, stage):
         except NotAuthorizedException as e:
             log.error("Have an NotAuthorizedException error {}".format(e))
             ret = 403
+            exception = e
         except Exception as e:
             log.error("Have an error {}", e)
             ret = 500
+            exception = e
         finally:
             if ret == 200:
                 return HttpResponse("{}", content_type="application/json")
             else:
                 environs_helper.remove_env_capacity(
                     request, name, stage, capacity_type="GROUP", data=cluster_name)
-                return HttpResponse(e, status=ret, content_type="application/json")
+                return HttpResponse(exception, status=ret, content_type="application/json")
 
 
 class ClusterConfigurationView(View):
@@ -1137,13 +1140,13 @@ def gen_auto_cluster_refresh_view(request, name, stage):
 
     # get default configurations for first time
     try:
-        if auto_refresh_config == None:
+        if auto_refresh_config is None:
             auto_refresh_config = clusters_helper.get_default_cluster_auto_refresh_config(request, cluster_name)
             auto_refresh_config["launchBeforeTerminate"] = True
             auto_refresh_config["config"]["minHealthyPercentage"] = 100
             auto_refresh_config["config"]["maxHealthyPercentage"] = 110
         else:
-            if auto_refresh_config["config"]["maxHealthyPercentage"] == None:
+            if auto_refresh_config["config"]["maxHealthyPercentage"] is None:
                 auto_refresh_config["terminateAndLaunch"] = True
             elif auto_refresh_config["config"]["minHealthyPercentage"] == 100:
                 auto_refresh_config["launchBeforeTerminate"] = True
@@ -1179,7 +1182,7 @@ def gen_auto_cluster_refresh_view(request, name, stage):
 
 def sanitize_slack_email_input(input):
     res = ''
-    if input == None or len(input) == 0:
+    if input is None or len(input) == 0:
         return res
 
     tokens = input.strip().split(',')
@@ -1264,7 +1267,7 @@ def submit_auto_refresh_config(request, name, stage):
             group_info["groupInfo"]["chatroom"] = slack_channels
             autoscaling_groups_helper.update_group_info(request, cluster_name, group_info["groupInfo"])
         messages.success(request, "Auto refresh config saved successfully.", "cluster-replacements")
-    except IllegalArgumentException as e:
+    except IllegalArgumentException:
         log.exception("Failed to update refresh config. Some request could succeed.")
         pass
     except Exception as e:
@@ -1290,13 +1293,13 @@ def gen_replacement_config(request):
 
     if params["availabilitySettingRadio"] == "launchBeforeTerminate":
         rollingUpdateConfig["minHealthyPercentage"] = 100
-        if params["maxHealthyPercentage"] == None or len(params["maxHealthyPercentage"]) == 0:
+        if params["maxHealthyPercentage"] is None or len(params["maxHealthyPercentage"]) == 0:
             rollingUpdateConfig["maxHealthyPercentage"] = 110
         else:
             rollingUpdateConfig["maxHealthyPercentage"] = params["maxHealthyPercentage"]
     elif params["availabilitySettingRadio"] == "terminateAndLaunch":
         rollingUpdateConfig["maxHealthyPercentage"] = None
-        if params["minHealthyPercentage"] == None or len(params["minHealthyPercentage"]) == 0:
+        if params["minHealthyPercentage"] is None or len(params["minHealthyPercentage"]) == 0:
             rollingUpdateConfig["minHealthyPercentage"] = 100
         else:
             rollingUpdateConfig["minHealthyPercentage"] = params["minHealthyPercentage"]
@@ -1502,4 +1505,3 @@ def get_current_cluster(request, name, stage, env=None):
         cluster_name = env.get("clusterName")
         current_cluster = clusters_helper.get_cluster(request, cluster_name)
     return current_cluster
-

deploy-board/deploy_board/webapp/common.py

@@ -17,7 +17,6 @@
 """
 import logging
 from .helpers import environs_helper, deploys_helper, builds_helper, tags_helper
-from deploy_board.settings import IS_PINTEREST
 
 DEFAULT_BUILD_SIZE = 30
 DEFAULT_COMMITS_SIZE = 30

deploy-board/deploy_board/webapp/deploy_views.py

@@ -15,6 +15,7 @@
 # -*- coding: utf-8 -*-
 """Collection of all deploy related views
 """
+import logging
 from deploy_board.settings import SITE_METRICS_CONFIGS, TELETRAAN_DISABLE_CREATE_ENV_PAGE, TELETRAAN_REDIRECT_CREATE_ENV_PAGE_URL
 from django.middleware.csrf import get_token
 from .accounts import get_accounts_from_deploy
@@ -23,9 +24,11 @@
 from django.views.generic import View
 from django.template.loader import render_to_string
 from django.http import HttpResponse
-from .helpers import builds_helper, deploys_helper, environs_helper, tags_helper, clusters_helper, accounts_helper
+from .helpers import builds_helper, deploys_helper, environs_helper, tags_helper
 
 
+log = logging.getLogger(__name__)
+
 DEFAULT_PAGE_SIZE = 30
 DEFAULT_ONGOING_DEPLOY_SIZE = 10
 
@@ -145,7 +148,6 @@ def get(self, request, deploy_id):
         deploy = deploys_helper.get(request, deploy_id)
         build_with_tag = builds_helper.get_build_and_tag(request, deploy['buildId'])
         env = None
-        account = None
         deploy_accounts = []
         if deploy.get('envId'):
             env = environs_helper.get(request, deploy['envId'])

deploy-board/deploy_board/webapp/env_views.py

@@ -35,7 +35,6 @@
 from .accounts import get_accounts, get_accounts_from_deploy, create_legacy_ui_account, add_account_from_cluster, add_legacy_accounts
 import random
 import json
-import requests
 from collections import Counter
 from .helpers import builds_helper, environs_helper, agents_helper, ratings_helper, deploys_helper, \
     systems_helper, environ_hosts_helper, clusters_helper, tags_helper, baseimages_helper, schedules_helper, placements_helper, hosttypes_helper, \
@@ -356,7 +355,7 @@ def check_feedback_eligible(request, username):
             if num <= 10:
                 return True
         return False
-    except:
+    except Exception:
         log.error(traceback.format_exc())
         return False
 
@@ -605,13 +604,13 @@ def _gen_message_for_refreshing_cluster(request, last_cluster_refresh_status, la
 
         any_host_with_outdated_ami = len(amis) > 1 or (len(amis) == 1 and amis[0] != current_AMI)
 
-        if any_host_with_outdated_ami and latest_succeeded_base_image_update_event != None:
-            if last_cluster_refresh_status == None or last_cluster_refresh_status["startTime"] == None or last_cluster_refresh_status["startTime"] <= latest_succeeded_base_image_update_event["finish_time"]:
+        if any_host_with_outdated_ami and latest_succeeded_base_image_update_event is not None:
+            if last_cluster_refresh_status is None or last_cluster_refresh_status["startTime"] is None or last_cluster_refresh_status["startTime"] <= latest_succeeded_base_image_update_event["finish_time"]:
                 return "The cluster was updated with a new AMI at {} PST and should be replaced to ensure the AMI is applied to all existing hosts.".format(utils.convertTimestamp(latest_succeeded_base_image_update_event["finish_time"]))
 
         return None
 
-    except:
+    except Exception:
         # in case of any exception, return None instead of showing the error on landing page
         return None
 
@@ -626,7 +625,7 @@ def _get_last_cluster_refresh_status(request, env):
             return None
 
         return replace_summaries["clusterRollingUpdateStatuses"][0]
-    except:
+    except Exception:
         return None
 
 def _is_cluster_auto_refresh_enabled(request, env):
@@ -635,7 +634,7 @@ def _is_cluster_auto_refresh_enabled(request, env):
         cluster_info = clusters_helper.get_cluster(request, cluster_name)
 
         return cluster_info["autoRefresh"]
-    except:
+    except Exception:
         return None
 
 
@@ -689,7 +688,7 @@ def _get_commit_info(request, commit, repo=None, branch='master'):
     try:
         commit_info = builds_helper.get_commit(request, repo, commit)
         return repo, branch, commit_info['date']
-    except:
+    except Exception:
         log.error(traceback.format_exc())
         return None, None, None
 
@@ -1024,7 +1023,7 @@ def post_create_env(request):
             if external_id:
                 try:
                     environs_helper.delete_nimbus_identifier(request, external_id)
-                except:
+                except Exception:
                     message = 'Also failed to delete Nimbus identifier {}. Please verify that identifier no longer exists, Error Message: {}'.format(external_id, detail)
                     log.error(message)
             raise detail
@@ -1322,7 +1321,6 @@ def rollback(request, name, stage):
     html = render_to_string("environs/env_rollback.html", {
         "envs": envs,
         "stages": stages,
-        "envs": envs,
         "env": env,
         "deploy_summaries": deploy_summaries,
         "to_deploy_id": to_deploy_id,
@@ -1368,7 +1366,6 @@ def promote(request, name, stage, deploy_id):
     html = render_to_string("environs/env_promote.html", {
         "envs": envs,
         "stages": stages,
-        "envs": envs,
         "env": env,
         "env_wrappers": env_wrappers,
         "deploy": deploy,
@@ -1806,7 +1803,7 @@ def get_deploy_schedule(request, name, stage):
     env = environs_helper.get_env_by_stage(request, name, stage)
     envs = environs_helper.get_all_env_stages(request, name)
     schedule_id = env.get('scheduleId', None)
-    if schedule_id != None:
+    if schedule_id is not None:
         schedule = schedules_helper.get_schedule(request, name, stage, schedule_id)
     else:
         schedule = None

deploy-board/deploy_board/webapp/error_views.py

@@ -18,7 +18,7 @@
 from django.shortcuts import render
 from deploy_board.settings import DEBUG
 from django.http import HttpResponse, HttpResponseRedirect
-from .helpers.exceptions import NotAuthorizedException, FailedAuthenticationException
+from .helpers.exceptions import IllegalArgumentException, NotAuthorizedException, NotFoundException, FailedAuthenticationException
 
 logger = logging.getLogger(__name__)