Class: Kapusta::Formatter

Inherits:
Object
  • Object
show all
Defined in:
lib/kapusta/formatter.rb

Defined Under Namespace

Classes: Error

Constant Summary collapse

MAX_WIDTH = 
80
INDENT = 
2
STDIN_PATH = 
'-'
PIPELINE_FORMS = 
%w[-> ->> -?> -?>> doto].freeze

Instance Method Summary collapse

Constructor Details

#initialize(argv) ⇒ Formatter

Returns a new instance of Formatter.



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# File 'lib/kapusta/formatter.rb', line 13

def initialize(argv)
  @mode = :stdout
  @files = []
  @version = false
  parse_args(argv)
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/kapusta/formatter.rb', line 20

def run
  if @version
    puts "kapfmt #{Kapusta::VERSION}"
    return 0
  end

  validate_args!

  formatted = @files.map do |path|
    original = read_source(path)
    [path, original, format_source(original)]
  end

  case @mode
  when :stdout
    $stdout.write(formatted.first[2])
  when :fix
    formatted.each do |path, _original, rewritten|
      raise Error, 'Cannot use --fix with stdin (-).' if stdin_path?(path)

      File.write(path, rewritten)
    end
  when :check
    dirty = formatted.reject { |_path, original, rewritten| original == rewritten }
    dirty.each do |path, _original, _rewritten|
      warn "Not formatted: #{path}"
    end
    return 1 unless dirty.empty?
  end

  0
rescue Error => e
  warn e.message
  1
end