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class Environment < ActiveRecord::Base
# Used to generate random suffixes for the slug
NUMBERS = '0'..'9'
SUFFIX_CHARS = ('a'..'z').to_a + NUMBERS.to_a
belongs_to :project, required: true, validate: true
has_many :deployments
before_validation :nullify_external_url
before_validation :generate_slug, if: ->(env) { env.slug.blank? }
before_save :set_environment_type
validates :name,
presence: true,
uniqueness: { scope: :project_id },
length: { maximum: 255 },
format: { with: Gitlab::Regex.environment_name_regex,
message: Gitlab::Regex.environment_name_regex_message }
validates :slug,
presence: true,
uniqueness: { scope: :project_id },
length: { maximum: 24 },
format: { with: Gitlab::Regex.environment_slug_regex,
message: Gitlab::Regex.environment_slug_regex_message }
validates :external_url,
uniqueness: { scope: :project_id },
length: { maximum: 255 },
allow_nil: true,
addressable_url: true
delegate :stop_action, :manual_actions, to: :last_deployment, allow_nil: true
scope :available, -> { with_state(:available) }
scope :stopped, -> { with_state(:stopped) }
state_machine :state, initial: :available do
event :start do
transition stopped: :available
end
event :stop do
transition available: :stopped
end
state :available
state :stopped
end
def predefined_variables
[
{ key: 'CI_ENVIRONMENT_NAME', value: name, public: true },
{ key: 'CI_ENVIRONMENT_SLUG', value: slug, public: true },
]
end
def recently_updated_on_branch?(ref)
ref.to_s == last_deployment.try(:ref)
end
def last_deployment
deployments.last
end
def nullify_external_url
self.external_url = nil if self.external_url.blank?
end
def set_environment_type
names = name.split('/')
self.environment_type =
if names.many?
names.first
else
nil
end
end
def includes_commit?(commit)
return false unless last_deployment
last_deployment.includes_commit?(commit)
end
def update_merge_request_metrics?
self.name == "production"
end
def first_deployment_for(commit)
ref = project.repository.ref_name_for_sha(ref_path, commit.sha)
return nil unless ref
deployment_iid = ref.split('/').last
deployments.find_by(iid: deployment_iid)
end
def ref_path
"refs/environments/#{Shellwords.shellescape(name)}"
end
def formatted_external_url
return nil unless external_url
external_url.gsub(/\A.*?:\/\//, '')
end
def stoppable?
available? && stop_action.present?
end
def stop!(current_user)
return unless stoppable?
stop
stop_action.play(current_user)
end
def actions_for(environment)
return [] unless manual_actions
manual_actions.select do |action|
action.expanded_environment_name == environment
end
end
# An environment name is not necessarily suitable for use in URLs, DNS
# or other third-party contexts, so provide a slugified version. A slug has
# the following properties:
# * contains only lowercase letters (a-z), numbers (0-9), and '-'
# * begins with a letter
# * has a maximum length of 24 bytes (OpenShift limitation)
# * cannot end with `-`
def generate_slug
# Lowercase letters and numbers only
slugified = name.to_s.downcase.gsub(/[^a-z0-9]/, '-')
# Must start with a letter
slugified = "env-" + slugified if NUMBERS.cover?(slugified[0])
# Maximum length: 24 characters (OpenShift limitation)
slugified = slugified[0..23]
# Cannot end with a "-" character (Kubernetes label limitation)
slugified = slugified[0..-2] if slugified[-1] == "-"
# Add a random suffix, shortening the current string if necessary, if it
# has been slugified. This ensures uniqueness.
slugified = slugified[0..16] + "-" + random_suffix if slugified != name
self.slug = slugified
end
private
# Slugifying a name may remove the uniqueness guarantee afforded by it being
# based on name (which must be unique). To compensate, we add a random
# 6-byte suffix in those circumstances. This is not *guaranteed* uniqueness,
# but the chance of collisions is vanishingly small
def random_suffix
(0..5).map { SUFFIX_CHARS.sample }.join
end
end
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