2017-03-14 09:05:45 +00:00
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# This class is not backed by a table in the main database.
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# It loads the latest Pipeline for the HEAD of a repository, and caches that
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# in Redis.
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module Ci
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class PipelineStatus
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attr_accessor :sha, :status, :project, :loaded
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delegate :commit, to: :project
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def self.load_for_project(project)
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new(project).tap do |status|
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status.load_status
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end
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end
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def initialize(project, sha: nil, status: nil)
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@project = project
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@sha = sha
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@status = status
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end
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def has_status?
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loaded? && sha.present? && status.present?
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end
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def load_status
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return if loaded?
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if has_cache?
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load_from_cache
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else
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load_from_commit
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store_in_cache
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end
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self.loaded = true
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end
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def load_from_commit
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2017-03-14 19:46:34 +00:00
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return unless commit
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2017-03-14 09:05:45 +00:00
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self.sha = commit.sha
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self.status = commit.status
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end
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# We only cache the status for the HEAD commit of a project
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# This status is rendered in project lists
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def store_in_cache_if_needed
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return unless sha
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return delete_from_cache unless commit
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store_in_cache if commit.sha == self.sha
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end
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def load_from_cache
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Gitlab::Redis.with do |redis|
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self.sha, self.status = redis.hmget(cache_key, :sha, :status)
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end
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end
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def store_in_cache
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Gitlab::Redis.with do |redis|
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redis.mapped_hmset(cache_key, { sha: sha, status: status })
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end
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end
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def delete_from_cache
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Gitlab::Redis.with do |redis|
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redis.del(cache_key)
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end
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end
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def has_cache?
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Gitlab::Redis.with do |redis|
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redis.exists(cache_key)
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end
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end
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def loaded?
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self.loaded
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end
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def cache_key
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"projects/#{project.id}/build_status"
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end
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end
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end
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