self.parse_uri

in scm_helper/libraries/s3.rb [5:49]

• 32 lines of code
• 8 McCabe index (conditional complexity)

      def self.parse_uri(uri)
        
        
        

        components = URI.split(uri)
        base_uri = URI::HTTP.new(*(components.take(5) + [nil] * 4))
        remote_path = URI::HTTP.new(*([nil] * 5 + components.drop(5)))

        virtual_host_match = base_uri.host.match(/\A(.+)\.s3(?:-website|.dualstack)?([-.](ap|ca|cn|eu|sa|us)-(.+-)\d|-external-1)?\.amazonaws\.com/i)

        if virtual_host_match
          
          bucket = virtual_host_match[1]
          if virtual_host_match[2]
            region = virtual_host_match[2][1..-1]
            region = "us-east-1" if region == "external-1"
          else
            region = "us-east-1"
          end
        else
          
          uri_path_components = remote_path.path.split("/").reject(&:empty?)
          bucket = uri_path_components.shift 
          base_uri.path = "/#{bucket}" 
          remote_path.path = uri_path_components.join("/") 

          if base_uri.host == "s3.amazonaws.com"
            region = "us-east-1"
          elsif base_uri.host == "s3-external-1.amazonaws.com"
            region = "us-east-1"
          elsif base_uri.host == "s3-website.amazonaws.com"
            region = "us-east-1"
          elsif base_uri.host.start_with? "s3.dualstack"
            region = base_uri.host.split('.')[2]
          else
            region = base_uri.host.sub(/^s3(?:-website)?[-.]/i, '').split('.')[0]
          end
        end

        
        
        [bucket, remote_path.to_s.to_s.sub(%r{^/}, ""), base_uri.to_s.chomp("/"), region]
      end