lib/pronto/eslint.rb

   1 require 'pronto'
   2 require 'eslintrb'
   3
   4 module Pronto
   5   class ESLint < Runner
   6     def run
   7       return [] unless @patches
   8
   9       @patches.select { |patch| patch.additions > 0 }
  10         .select { |patch| js_file?(patch.new_file_full_path) }
  11         .map { |patch| inspect(patch) }
  12         .flatten.compact
  13     end
  14
  15     def inspect(patch)
  16       options = File.exist?('.eslintrc') ? :eslintrc : :defaults
  17       offences = Eslintrb.lint(patch.new_file_full_path, options).compact
  18
  19       offences.map do |offence|
  20         patch.added_lines.select { |line| line.new_lineno == offence['line'] }
  21           .map { |line| new_message(offence, line) }
  22       end
  23     end
  24
  25     def new_message(offence, line)
  26       path = line.patch.delta.new_file[:path]
  27       level = :warning
  28
  29       Message.new(path, line, level, offence['message'], nil, self.class)
  30     end
  31
  32     def js_file?(path)
  33       %w(.js .es6).include? File.extname(path)
  34     end
  35   end
  36 end