Flutter analyze for Danger

README.md

Flutter analyze for Danger in CI

place the file in danger/plugins

flutter_analyze.rb

module Danger
    class DangerFlutterAnalyze < Plugin

      FlutterAnalyzeViolation = Struct.new(:level, :rule, :description, :file, :line)

      attr_accessor :report_name
      attr_accessor :report_path

      def lint
        report = File.open(report_path)
        lines = report.readlines
        
        unless validate_report(lines)
          failure("[#{report_name}] 不正なファイルです ❌")
          return
        end

        violations = get_violations(lines)
        if violations.empty?
          message("[#{report_name}] No issues found! ✅")
        else
          failure("[#{report_name}] #{violations.length} issues found! ❌")
          markdown(markdown_table(violations))
        end
      end

      private

      def validate_report(lines)
        lines.any? { |line| line.include?("Analyzing") }
      end
  
      def markdown_table(violations)
        table =  "| Level | File | Line | Rule |\n"
        table << "| ----- | ---- | ---- | ---- |\n"
  
        return violations.reduce(table) { |acc, violation| acc << table_row(violation) }
      end

      def table_row(violation)
        "| #{violation.level} | `#{violation.file}` | #{violation.line} | #{violation.rule} |\n"
      end

      def get_violations(lines)
        filtered_input = filter_input(lines)
  
        return [] if filtered_input.detect { |element| element.include? "No issues found!" }
  
        filtered_input
          .select { |line| line.start_with?("info", "warning", "error") }
          .map(&method(:parse_line))
      end

      def filter_input(lines)
        lines
          .map(&:strip)
          .reject(&:empty?)
      end
  
      def parse_line(line)
        level, description, file_with_line_number, rule = line.split(" • ")
        file, line = file_with_line_number.split(":")
  
        FlutterAnalyzeViolation.new(level, rule, description, file, line.to_i)
      end
    end
  end