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module Projects
class ForkService < BaseService
include Gitlab::ShellAdapter
def initialize(project, user)
@from_project, @current_user = project, user
end
def execute
project_params = {
visibility_level: @from_project.visibility_level,
description: @from_project.description,
}
project = Project.new(project_params)
project.name = @from_project.name
project.path = @from_project.path
project.namespace = current_user.namespace
project.creator = current_user
# If the project cannot save, we do not want to trigger the project destroy
# as this can have the side effect of deleting a repo attached to an existing
# project with the same name and namespace
if project.valid?
begin
Project.transaction do
#First save the DB entries as they can be rolled back if the repo fork fails
project.build_forked_project_link(forked_to_project_id: project.id, forked_from_project_id: @from_project.id)
if project.save
project.team << [current_user, :master]
end
#Now fork the repo
unless gitlab_shell.fork_repository(@from_project.path_with_namespace, project.namespace.path)
raise "forking failed in gitlab-shell"
end
project.ensure_satellite_exists
end
rescue => ex
project.errors.add(:base, "Fork transaction failed.")
project.destroy
end
else
project.errors.add(:base, "Invalid fork destination")
end
project
end
end
end
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