Reimplement GitLab trigger handler using the V4 API library

GitLab has deprecated and removed the V3 API entirely

Fixes https://jira.coreos.com/browse/QUAY-966

endpoints/api/trigger.py

@@ -11,9 +11,7 @@ from app import app
 from auth.permissions import (UserAdminPermission, AdministerOrganizationPermission,
                               ReadRepositoryPermission, AdministerRepositoryPermission)
 from buildtrigger.basehandler import BuildTriggerHandler
-from buildtrigger.triggerutil import (TriggerDeactivationException,
-                                      TriggerActivationException, EmptyRepositoryException,
-                                      RepositoryReadException, TriggerStartException)
+from buildtrigger.triggerutil import TriggerException, EmptyRepositoryException
 from data import model
 from data.model.build import update_build_trigger
 from endpoints.api import (RepositoryParamResource, nickname, resource, require_repo_admin,
@@ -118,7 +116,7 @@ class BuildTrigger(RepositoryParamResource):
     if handler.is_active():
       try:
         handler.deactivate()
-      except TriggerDeactivationException as ex:
+      except TriggerException as ex:
         # We are just going to eat this error
         logger.warning('Trigger deactivation problem: %s', ex)
 
@@ -178,7 +176,7 @@ class BuildTriggerSubdirs(RepositoryParamResource):
           'contextMap': {},
           'dockerfile_paths': [],
         }
-      except RepositoryReadException as exc:
+      except TriggerException as exc:
         return {
           'status': 'error',
           'message': exc.message,
@@ -264,7 +262,7 @@ class BuildTriggerActivate(RepositoryParamResource):
         if 'private_key' in private_config:
           trigger.private_key = private_config['private_key']
 
-      except TriggerActivationException as exc:
+      except TriggerException as exc:
         write_token.delete_instance()
         raise request_error(message=exc.message)
 
@@ -332,7 +330,7 @@ class BuildTriggerAnalyze(RepositoryParamResource):
                                          new_config_dict,
                                          AdministerOrganizationPermission(namespace_name).can())
       return trigger_analyzer.analyze_trigger()
-    except RepositoryReadException as rre:
+    except TriggerException as rre:
       return {
         'status': 'error',
         'message': 'Could not analyze the repository: %s' % rre.message,
@@ -391,7 +389,7 @@ class ActivateBuildTrigger(RepositoryParamResource):
       run_parameters = request.get_json()
       prepared = handler.manual_start(run_parameters=run_parameters)
       build_request = start_build(repo, prepared, pull_robot_name=pull_robot_name)
-    except TriggerStartException as tse:
+    except TriggerException as tse:
       raise InvalidRequest(tse.message)
     except MaximumBuildsQueuedException:
       abort(429, message='Maximum queued build rate exceeded.')
@@ -494,7 +492,7 @@ class BuildTriggerSources(RepositoryParamResource):
         return {
           'sources': handler.list_build_sources_for_namespace(namespace)
         }
-      except RepositoryReadException as rre:
+      except TriggerException as rre:
         raise InvalidRequest(rre.message)
     else:
       raise Unauthorized()
@@ -522,7 +520,7 @@ class BuildTriggerSourceNamespaces(RepositoryParamResource):
         return {
           'namespaces': handler.list_build_source_namespaces()
         }
-      except RepositoryReadException as rre:
+      except TriggerException as rre:
         raise InvalidRequest(rre.message)
     else:
       raise Unauthorized()