debian-mirror-gitlab/app/services/projects/destroy_service.rb

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# frozen_string_literal: true
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module Projects
class DestroyService < BaseService
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include Gitlab::ShellAdapter
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DestroyError = Class.new(StandardError)
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DELETED_FLAG = '+deleted'
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REPO_REMOVAL_DELAY = 5.minutes.to_i
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def async_execute
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project.update_attribute(:pending_delete, true)
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# Ensure no repository +deleted paths are kept,
# regardless of any issue with the ProjectDestroyWorker
# job process.
schedule_stale_repos_removal
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job_id = ProjectDestroyWorker.perform_async(project.id, current_user.id, params)
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Rails.logger.info("User #{current_user.id} scheduled destruction of project #{project.full_path} with job ID #{job_id}") # rubocop:disable Gitlab/RailsLogger
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end
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def execute
return false unless can?(current_user, :remove_project, project)
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# Flush the cache for both repositories. This has to be done _before_
# removing the physical repositories as some expiration code depends on
# Git data (e.g. a list of branch names).
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flush_caches(project)
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Projects::UnlinkForkService.new(project, current_user).execute
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attempt_destroy_transaction(project)
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system_hook_service.execute_hooks_for(project, :destroy)
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log_info("Project \"#{project.full_path}\" was removed")
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current_user.invalidate_personal_projects_count
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true
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rescue => error
attempt_rollback(project, error.message)
false
rescue Exception => error # rubocop:disable Lint/RescueException
# Project.transaction can raise Exception
attempt_rollback(project, error.message)
raise
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end
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def attempt_repositories_rollback
return unless @project
flush_caches(@project)
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unless rollback_repository(removal_path(repo_path), repo_path)
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raise_error(s_('DeleteProject|Failed to restore project repository. Please contact the administrator.'))
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end
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unless rollback_repository(removal_path(wiki_path), wiki_path)
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raise_error(s_('DeleteProject|Failed to restore wiki repository. Please contact the administrator.'))
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end
end
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private
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def repo_path
project.disk_path
end
def wiki_path
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project.wiki.disk_path
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end
def trash_repositories!
unless remove_repository(repo_path)
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raise_error(s_('DeleteProject|Failed to remove project repository. Please try again or contact administrator.'))
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end
unless remove_repository(wiki_path)
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raise_error(s_('DeleteProject|Failed to remove wiki repository. Please try again or contact administrator.'))
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end
end
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def remove_repository(path)
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# There is a possibility project does not have repository or wiki
return true unless repo_exists?(path)
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new_path = removal_path(path)
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if mv_repository(path, new_path)
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log_info(%Q{Repository "#{path}" moved to "#{new_path}" for project "#{project.full_path}"})
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project.run_after_commit do
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GitlabShellWorker.perform_in(REPO_REMOVAL_DELAY, :remove_repository, self.repository_storage, new_path)
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end
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else
false
end
end
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def schedule_stale_repos_removal
repo_paths = [removal_path(repo_path), removal_path(wiki_path)]
# Ideally it should wait until the regular removal phase finishes,
# so let's delay it a bit further.
repo_paths.each do |path|
GitlabShellWorker.perform_in(REPO_REMOVAL_DELAY * 2, :remove_repository, project.repository_storage, path)
end
end
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def rollback_repository(old_path, new_path)
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# There is a possibility project does not have repository or wiki
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return true unless repo_exists?(old_path)
mv_repository(old_path, new_path)
end
def repo_exists?(path)
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gitlab_shell.repository_exists?(project.repository_storage, path + '.git')
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end
def mv_repository(from_path, to_path)
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return true unless repo_exists?(from_path)
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gitlab_shell.mv_repository(project.repository_storage, from_path, to_path)
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end
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def attempt_rollback(project, message)
return unless project
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# It's possible that the project was destroyed, but some after_commit
# hook failed and caused us to end up here. A destroyed model will be a frozen hash,
# which cannot be altered.
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project.update(delete_error: message, pending_delete: false) unless project.destroyed?
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log_error("Deletion failed on #{project.full_path} with the following message: #{message}")
end
def attempt_destroy_transaction(project)
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unless remove_registry_tags
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raise_error(s_('DeleteProject|Failed to remove some tags in project container registry. Please try again or contact administrator.'))
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end
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project.leave_pool_repository
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Project.transaction do
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log_destroy_event
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trash_repositories!
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# Rails attempts to load all related records into memory before
# destroying: https://github.com/rails/rails/issues/22510
# This ensures we delete records in batches.
#
# Exclude container repositories because its before_destroy would be
# called multiple times, and it doesn't destroy any database records.
project.destroy_dependent_associations_in_batches(exclude: [:container_repositories])
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project.destroy!
end
end
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def log_destroy_event
log_info("Attempting to destroy #{project.full_path} (#{project.id})")
end
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def remove_registry_tags
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return true unless Gitlab.config.registry.enabled
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return false unless remove_legacy_registry_tags
project.container_repositories.find_each do |container_repository|
service = Projects::ContainerRepository::DestroyService.new(project, current_user)
service.execute(container_repository)
end
true
end
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##
# This method makes sure that we correctly remove registry tags
# for legacy image repository (when repository path equals project path).
#
def remove_legacy_registry_tags
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return true unless Gitlab.config.registry.enabled
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::ContainerRepository.build_root_repository(project).tap do |repository|
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break repository.has_tags? ? repository.delete_tags! : true
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end
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end
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def raise_error(message)
raise DestroyError.new(message)
end
# Build a path for removing repositories
# We use `+` because its not allowed by GitLab so user can not create
# project with name cookies+119+deleted and capture someone stalled repository
#
# gitlab/cookies.git -> gitlab/cookies+119+deleted.git
#
def removal_path(path)
"#{path}+#{project.id}#{DELETED_FLAG}"
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end
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def flush_caches(project)
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ignore_git_errors(repo_path) { project.repository.before_delete }
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ignore_git_errors(wiki_path) { Repository.new(wiki_path, project, disk_path: repo_path).before_delete }
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Projects::ForksCountService.new(project).delete_cache
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end
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# If we get a Gitaly error, the repository may be corrupted. We can
# ignore these errors since we're going to trash the repositories
# anyway.
def ignore_git_errors(disk_path, &block)
yield
rescue Gitlab::Git::CommandError => e
Gitlab::GitLogger.warn(class: self.class.name, project_id: project.id, disk_path: disk_path, message: e.to_s)
end
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end
end
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Projects::DestroyService.prepend_if_ee('EE::Projects::DestroyService')