118 lines
2.6 KiB
Ruby
118 lines
2.6 KiB
Ruby
# frozen_string_literal: true
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# The PoolRepository model is the database equivalent of an ObjectPool for Gitaly
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# That is; PoolRepository is the record in the database, ObjectPool is the
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# repository on disk
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class PoolRepository < ApplicationRecord
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include Shardable
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include AfterCommitQueue
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has_one :source_project, class_name: 'Project'
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validates :source_project, presence: true
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has_many :member_projects, class_name: 'Project'
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after_create :correct_disk_path
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state_machine :state, initial: :none do
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state :scheduled
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state :ready
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state :failed
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state :obsolete
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event :schedule do
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transition none: :scheduled
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end
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event :mark_ready do
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transition [:scheduled, :failed] => :ready
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end
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event :mark_failed do
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transition all => :failed
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end
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event :mark_obsolete do
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transition all => :obsolete
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end
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state all - [:ready] do
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def joinable?
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false
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end
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end
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state :ready do
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def joinable?
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true
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end
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end
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after_transition none: :scheduled do |pool, _|
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pool.run_after_commit do
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::ObjectPool::CreateWorker.perform_async(pool.id)
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end
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end
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after_transition scheduled: :ready do |pool, _|
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pool.run_after_commit do
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::ObjectPool::ScheduleJoinWorker.perform_async(pool.id)
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end
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end
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after_transition any => :obsolete do |pool, _|
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pool.run_after_commit do
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::ObjectPool::DestroyWorker.perform_async(pool.id)
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end
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end
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end
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def create_object_pool
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object_pool.create
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end
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# The members of the pool should have fetched the missing objects to their own
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# objects directory. If the caller fails to do so, data loss might occur
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def delete_object_pool
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object_pool.delete
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end
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def link_repository(repository)
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object_pool.link(repository.raw)
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end
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# This RPC can cause data loss, as not all objects are present the local repository
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def unlink_repository(repository)
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object_pool.unlink_repository(repository.raw)
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if member_projects.where.not(id: repository.project.id).exists?
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true
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else
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mark_obsolete
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end
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end
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def object_pool
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@object_pool ||= Gitlab::Git::ObjectPool.new(
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shard.name,
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disk_path + '.git',
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source_project.repository.raw,
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source_project.full_path
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)
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end
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def inspect
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"#<#{self.class.name} id:#{id} state:#{state} disk_path:#{disk_path} source_project: #{source_project.full_path}>"
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end
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private
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def correct_disk_path
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update!(disk_path: storage.disk_path)
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end
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def storage
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Storage::HashedProject
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.new(self, prefix: Storage::HashedProject::POOL_PATH_PREFIX)
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end
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end
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