51 lines
1.3 KiB
Ruby
51 lines
1.3 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Ci
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module Build
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module Artifacts
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module Adapters
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class GzipStream
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attr_reader :stream
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InvalidStreamError = Class.new(StandardError)
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def initialize(stream)
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raise InvalidStreamError, "Stream is required" unless stream
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@stream = stream
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end
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def each_blob
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stream.seek(0)
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until stream.eof?
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gzip(stream) do |gz|
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yield gz.read, gz.orig_name
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unused = gz.unused&.length.to_i
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# pos has already reached to EOF at the moment
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# We rewind the pos to the top of unused files
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# to read next gzip stream, to support multistream archives
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# https://golang.org/src/compress/gzip/gunzip.go#L117
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stream.seek(-unused, IO::SEEK_CUR)
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end
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end
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end
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private
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def gzip(stream, &block)
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gz = Zlib::GzipReader.new(stream)
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yield(gz)
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rescue Zlib::Error => e
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raise InvalidStreamError, e.message
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ensure
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gz&.finish
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end
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end
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end
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end
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end
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end
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end
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