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# frozen_string_literal: true
module Tooling
module Danger
module StableBranch
VersionApiError = Class.new(StandardError)
STABLE_BRANCH_REGEX = %r{\A(?<version>\d+-\d+)-stable-ee\z}
FAILING_PACKAGE_AND_TEST_STATUSES = %w[manual canceled].freeze
# rubocop:disable Lint/MixedRegexpCaptureTypes
VERSION_REGEX = %r{
\A(?<major>\d+)
\.(?<minor>\d+)
(\.(?<patch>\d+))?
(-(?<rc>rc(?<rc_number>\d*)))?
(-\h+\.\h+)?
(-ee|\.ee\.\d+)?\z
}x
# rubocop:enable Lint/MixedRegexpCaptureTypes
MAINTENANCE_POLICY_URL = 'https://docs.gitlab.com/ee/policy/maintenance.html'
MAINTENANCE_POLICY_MESSAGE = <<~MSG
See the [release and maintenance policy](#{MAINTENANCE_POLICY_URL}) for more information.
MSG
FEATURE_ERROR_MESSAGE = <<~MSG
This MR includes the `type::feature` label. Features do not qualify for patch releases. #{MAINTENANCE_POLICY_MESSAGE}
MSG
BUG_ERROR_MESSAGE = <<~MSG
This branch is meant for backporting bug fixes. If this MR qualifies please add the `type::bug` label. #{MAINTENANCE_POLICY_MESSAGE}
MSG
VERSION_WARNING_MESSAGE = <<~MSG
Backporting to older releases requires an [exception request process](https://docs.gitlab.com/ee/policy/maintenance.html#backporting-to-older-releases)
MSG
FAILED_VERSION_REQUEST_MESSAGE = <<~MSG
There was a problem checking if this is a qualified version for backporting. Re-running this job may fix the problem.
MSG
PIPELINE_EXPEDITE_ERROR_MESSAGE = <<~MSG
~"pipeline:expedite" is not allowed on stable branches because it causes the `e2e:package-and-test-ee` job to be skipped.
MSG
NEEDS_PACKAGE_AND_TEST_MESSAGE = <<~MSG
The `e2e:package-and-test-ee` job is not present, has been canceled, or needs to be automatically triggered.
Please ensure the job is present in the latest pipeline, if necessary, retry the `danger-review` job.
Read the "QA e2e:package-and-test-ee" section for more details.
MSG
WARN_PACKAGE_AND_TEST_MESSAGE = <<~MSG
**The `e2e:package-and-test-ee` job needs to succeed or have approval from a Software Engineer in Test.**
Read the "QA e2e:package-and-test-ee" section for more details.
MSG
def check!
return unless valid_stable_branch?
fail FEATURE_ERROR_MESSAGE if has_feature_label?
fail BUG_ERROR_MESSAGE unless bug_fixes_only?
warn VERSION_WARNING_MESSAGE unless targeting_patchable_version?
return if has_flaky_failure_label? || has_only_documentation_changes?
fail PIPELINE_EXPEDITE_ERROR_MESSAGE if has_pipeline_expedite_label?
status = package_and_test_bridge_and_pipeline_status
if status.nil? || FAILING_PACKAGE_AND_TEST_STATUSES.include?(status) # rubocop:disable Style/GuardClause
fail NEEDS_PACKAGE_AND_TEST_MESSAGE
else
warn WARN_PACKAGE_AND_TEST_MESSAGE
end
end
def encourage_package_and_qa_execution?
valid_stable_branch? &&
!has_only_documentation_changes? &&
!has_flaky_failure_label?
end
def valid_stable_branch?
!!stable_target_branch && !helper.security_mr?
end
private
def package_and_test_bridge_and_pipeline_status
mr_head_pipeline_id = gitlab.mr_json.dig('head_pipeline', 'id')
return unless mr_head_pipeline_id
bridge = package_and_test_bridge(mr_head_pipeline_id)
return unless bridge
if bridge['status'] == 'created'
bridge['status']
else
bridge.fetch('downstream_pipeline')&.fetch('status')
end
end
def package_and_test_bridge(mr_head_pipeline_id)
gitlab
.api
.pipeline_bridges(helper.mr_target_project_id, mr_head_pipeline_id)
&.find { |bridge| bridge['name'].include?('package-and-test-ee') }
end
def stable_target_branch
helper.mr_target_branch.match(STABLE_BRANCH_REGEX)
end
def has_feature_label?
helper.mr_has_labels?('type::feature')
end
def has_bug_label?
helper.mr_has_labels?('type::bug')
end
def has_pipeline_expedite_label?
helper.mr_has_labels?('pipeline:expedite')
end
def has_flaky_failure_label?
helper.mr_has_labels?('failure::flaky-test')
end
def bug_fixes_only?
has_bug_label? || has_only_documentation_changes?
end
def has_only_documentation_changes?
categories_changed = helper.changes_by_category.keys
return false unless categories_changed.size == 1
return true if categories_changed.first == :docs
false
end
def targeting_patchable_version?
raise VersionApiError if current_stable_version.empty?
current_stable_version == targeted_version
rescue VersionApiError
warn FAILED_VERSION_REQUEST_MESSAGE
true
end
def current_stable_version
return unless versions
current_version = versions.first.match(VERSION_REGEX)
version_to_minor_string(current_version)
end
def targeted_version
stable_target_branch[1].tr('-', '.')
end
def versions(page = 1)
version_api_endpoint = "https://version.gitlab.com/api/v1/versions?per_page=20&page=#{page}"
response = HTTParty.get(version_api_endpoint) # rubocop:disable Gitlab/HTTParty
raise VersionApiError unless response.success?
version_list = response.parsed_response.map { |v| v['version'] } # rubocop:disable Rails/Pluck
version_list.sort_by { |v| Gem::Version.new(v) }.reverse
end
def version_to_minor_string(version)
"#{version[:major]}.#{version[:minor]}"
end
end
end
end
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