Class: Querly::CLI::Console

Inherits:
Object
  • Object
show all
Includes:
Querly::Concerns::BacktraceFormatter
Defined in:
lib/querly/cli/console.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Querly::Concerns::BacktraceFormatter

#format_backtrace

Constructor Details

#initialize(paths:) ⇒ Console

Returns a new instance of Console.



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# File 'lib/querly/cli/console.rb', line 10

def initialize(paths:)
  @paths = paths
end

Instance Attribute Details

#paths ⇒ Object (readonly)

Returns the value of attribute paths.



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# File 'lib/querly/cli/console.rb', line 8

def paths
  @paths
end

Instance Method Details

#analyzer ⇒ Object 



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# File 'lib/querly/cli/console.rb', line 35

def analyzer
  return @analyzer if @analyzer

  @analyzer = Analyzer.new(config: nil, rule: nil)

  ScriptEnumerator.new(paths: paths, config: nil).each do |path, script|
    case script
    when Script
      @analyzer.scripts << script
    when StandardError
      p path: path, script: script.inspect
      puts script.backtrace
    end
  end

  @analyzer
end

#loop ⇒ Object 



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# File 'lib/querly/cli/console.rb', line 53

def loop
  while line = Readline.readline("> ", true)
    case line
    when "quit"
      exit
    when "reload!"
      STDOUT.print "reloading..."
      STDOUT.flush
      reload!
      STDOUT.puts " done"
    when /^find (.+)/
      begin
        pattern = Pattern::Parser.parse($1, where: {})

        count = 0

        analyzer.find(pattern) do |script, pair|
          path = script.path.to_s
          line = pair.node.loc.first_line
          range = pair.node.loc.expression
          start_col = range.column
          end_col = range.last_column

          src = range.source_buffer.source_lines[line-1]
          src = Rainbow(src[0...start_col]).blue +
            Rainbow(src[start_col...end_col]).bright.blue.bold +
            Rainbow(src[end_col..-1]).blue

          puts "  #{path}:#{line}:#{start_col}\t#{src}"

          count += 1
        end

        puts "#{count} results"
      rescue => exn
        STDOUT.puts Rainbow("Error: #{exn}").red
        STDOUT.puts "Backtrace:"
        STDOUT.puts format_backtrace(exn.backtrace)
      end
    else
      puts_commands
    end
  end
end

#puts_commands ⇒ Object 



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# File 'lib/querly/cli/console.rb', line 98

def puts_commands
  puts <<-Message
Commands:
  - find PATTERN   Find PATTERN from given paths
  - reload!        Reload program from paths
  - quit

  Message
end

#reload! ⇒ Object 



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# File 'lib/querly/cli/console.rb', line 30

def reload!
  @analyzer = nil
  analyzer
end

#start ⇒ Object 



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# File 'lib/querly/cli/console.rb', line 14

def start
  puts <<-Message
Querly #{VERSION}, interactive console

  Message

  puts_commands

  STDOUT.print "Loading..."
  STDOUT.flush
  reload!
  STDOUT.puts " ready!"

  loop
end