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|
# This class is not backed by a table in the main database.
# It loads the latest Pipeline for the HEAD of a repository, and caches that
# in Redis.
module Gitlab
module Cache
module Ci
class ProjectPipelineStatus
attr_accessor :sha, :status, :ref, :project, :loaded
delegate :commit, to: :project
def self.load_for_project(project)
new(project).tap do |status|
status.load_status
end
end
def self.update_for_pipeline(pipeline)
new(pipeline.project,
sha: pipeline.sha,
status: pipeline.status,
ref: pipeline.ref).store_in_cache_if_needed
end
def initialize(project, sha: nil, status: nil, ref: nil)
@project = project
@sha = sha
@ref = ref
@status = status
end
def has_status?
loaded? && sha.present? && status.present?
end
def load_status
return if loaded?
if has_cache?
load_from_cache
else
load_from_project
store_in_cache
end
self.loaded = true
end
def load_from_project
return unless commit
self.sha = commit.sha
self.status = commit.status
self.ref = project.default_branch
end
# We only cache the status for the HEAD commit of a project
# This status is rendered in project lists
def store_in_cache_if_needed
return delete_from_cache unless commit
return unless sha
return unless ref
if commit.sha == sha && project.default_branch == ref
store_in_cache
end
end
def load_from_cache
Gitlab::Redis.with do |redis|
self.sha, self.status, self.ref = redis.hmget(cache_key, :sha, :status, :ref)
end
end
def store_in_cache
Gitlab::Redis.with do |redis|
redis.mapped_hmset(cache_key, { sha: sha, status: status, ref: ref })
end
end
def delete_from_cache
Gitlab::Redis.with do |redis|
redis.del(cache_key)
end
end
def has_cache?
Gitlab::Redis.with do |redis|
redis.exists(cache_key)
end
end
def loaded?
self.loaded
end
def cache_key
"projects/#{project.id}/build_status"
end
end
end
end
end
|
