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39 lines
971 B
Ruby
39 lines
971 B
Ruby
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# frozen_string_literal: true
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module Utils
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# Helper functions for interacting with tar files.
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#
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# @api private
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module Tar
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module_function
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TAR_FILE_EXTENSIONS = %w[.tar .tb2 .tbz .tbz2 .tgz .tlz .txz .tZ].freeze
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def available?
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executable.present?
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end
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def executable
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return @executable if defined?(@executable)
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gnu_tar_gtar_path = HOMEBREW_PREFIX/"opt/gnu-tar/bin/gtar"
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gnu_tar_gtar = gnu_tar_gtar_path if gnu_tar_gtar_path.executable?
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@executable = which("gtar") || gnu_tar_gtar || which("tar")
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end
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def validate_file(path)
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return unless available?
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path = Pathname.new(path)
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return unless TAR_FILE_EXTENSIONS.include? path.extname
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return if Utils.popen_read(executable, "-tf", path).match?(%r{/.*\.})
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odie "#{path} is not a valid tar file!"
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end
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def clear_executable_cache
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remove_instance_variable(:@executable) if defined?(@executable)
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end
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end
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end
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