64 lines
1.5 KiB
Ruby
64 lines
1.5 KiB
Ruby
# frozen_string_literal: true
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module Compression
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class Gzip < Strategy
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def extension
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'.gz'
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end
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def compress(path, target_name)
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gzip_target = sanitize_path("#{path}/#{target_name}")
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Discourse::Utils.execute_command('gzip', '-5', gzip_target, failure_message: "Failed to gzip file.")
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"#{gzip_target}.gz"
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end
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private
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def entries_of(compressed_file)
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[compressed_file]
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end
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def is_file?(_)
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true
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end
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def extract_folder(_entry, _entry_path); end
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def get_compressed_file_stream(compressed_file_path)
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gzip = Zlib::GzipReader.open(compressed_file_path)
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yield(gzip)
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end
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def build_entry_path(dest_path, _, compressed_file_path)
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basename = File.basename(compressed_file_path)
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basename.gsub!(/#{Regexp.escape(extension)}$/, '')
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File.join(dest_path, basename)
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end
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def decompression_results_path(dest_path, compressed_file_path)
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build_entry_path(dest_path, nil, compressed_file_path)
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end
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def extract_file(entry, entry_path, available_size)
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remaining_size = available_size
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if ::File.exist?(entry_path)
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raise ::Zip::DestinationFileExistsError,
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"Destination '#{entry_path}' already exists"
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end # Change this later.
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::File.open(entry_path, 'wb') do |os|
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buf = ''.dup
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while (buf = entry.read(chunk_size))
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remaining_size -= chunk_size
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raise ExtractFailed if remaining_size.negative?
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os << buf
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end
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end
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remaining_size
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end
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end
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end
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