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module Gitlab
module ImportExport
class FileImporter
include Gitlab::ImportExport::CommandLineUtil
MAX_RETRIES = 8
def self.import(*args)
new(*args).import
end
def initialize(archive_file:, shared:)
@archive_file = archive_file
@shared = shared
end
def import
mkdir_p(@shared.export_path)
wait_for_archived_file do
decompress_archive
end
rescue => e
@shared.error(e)
false
end
private
# Exponentially sleep until I/O finishes copying the file
def wait_for_archived_file
MAX_RETRIES.times do |retry_number|
break if File.exist?(@archive_file)
sleep(2**retry_number)
end
yield
end
def decompress_archive
result = untar_zxf(archive: @archive_file, dir: @shared.export_path)
raise Projects::ImportService::Error.new("Unable to decompress #{@archive_file} into #{@shared.export_path}") unless result
remove_symlinks!
end
def remove_symlinks!
Dir["#{@shared.export_path}/**/*"].each do |path|
FileUtils.rm(path) if File.lstat(path).symlink?
end
true
end
end
end
end