def safe_version
      version = project.build_version.dup

      if version =~ /\-/
        converted = version.tr("-", "~")

        log.warn(log_key) do
          "Dashes hold special significance in the Debian package versions. " \
          "Versions that contain a dash and should be considered an earlier " \
          "version (e.g. pre-releases) may actually be ordered as later " \
          "(e.g. 12.0.0-rc.6 > 12.0.0). We'll work around this by replacing " \
          "dashes (-) with tildes (~). Converting `#{project.build_version}' " \
          "to `#{converted}'."
        end

        version = converted
      end

      if version =~ /\A[a-zA-Z0-9\.\+\:\~]+\z/
        version
      else
        converted = version.gsub(/[^a-zA-Z0-9\.\+\:\~]+/, "_")

        log.warn(log_key) do
          "The `version' component of Debian package names can only include " \
          "alphabetical characters (a-z, A-Z), numbers (0-9), dots (.), " \
          "plus signs (+), dashes (-), tildes (~) and colons (:). Converting " \
          "`#{project.build_version}' to `#{converted}'."
        end

        converted
      end
    end
def safe_version
      version = project.build_version.dup

      if version =~ /\-/
        converted = version.tr("-", "~")

        log.warn(log_key) do
          "Dashes hold special significance in the Debian package versions. " \
          "Versions that contain a dash and should be considered an earlier " \
          "version (e.g. pre-releases) may actually be ordered as later " \
          "(e.g. 12.0.0-rc.6 > 12.0.0). We'll work around this by replacing " \
          "dashes (-) with tildes (~). Converting `#{project.build_version}' " \
          "to `#{converted}'."
        end

        version = converted
      end

      if version =~ /\A[a-zA-Z0-9\.\+\:\~]+\z/
        version
      else
        converted = version.gsub(/[^a-zA-Z0-9\.\+\:\~]+/, "_")

        log.warn(log_key) do
          "The `version' component of Debian package names can only include " \
          "alphabetical characters (a-z, A-Z), numbers (0-9), dots (.), " \
          "plus signs (+), dashes (-), tildes (~) and colons (:). Converting " \
          "`#{project.build_version}' to `#{converted}'."
        end

        converted
      end
    end
Return the Debian-ready version, replacing all dashes (+-+) with tildes
 (+~+) and converting any invalid characters to underscores (+_+).

 @return [String]